Abstract
An enhanced gift card and system include the enhanced gift card and prizes. One of each or multiple of the prizes are pre-assigned to one of the enhanced gift cards. After a purchaser buys the enhanced gift card and either uses or gifts the enhanced gift card to someone, a test is made to see if the enhanced gift card was purchased and if this enhanced gift card is associated with a prize and, if so, the prize is awarded to the purchaser or recipient. In one embodiment, an indication of the prize is on the enhanced gift card and occluded by material that is scratched off to reveal the prize.
Claims
1. A system for enhanced gift cards, the system comprising: a computer system of a provider of the enhanced gift cards; a plurality of enhanced gift cards, each enhanced gift card has a monetary value; a plurality of prizes, each prize of the plurality of prizes associated with a single enhanced gift card of the plurality of enhanced gift cards; after purchase of one enhanced gift card of the plurality of enhanced gift cards, means for determining when the one enhanced gift card has been associated with one of the plurality of prizes; and means for providing the one of the plurality of prizes.
2. The system of claim 1, whereas the means for determining comprises one or more prize spaces on each enhanced gift card, each of the one or more prize spaces are occluded by an occlusion and each of the one or more prize spaces has content, the content is configured to indicate when each enhanced gift card is associated with one of the plurality of prizes such that the occlusion is configured to be removed, thereby the content is exposed to reveal a prize, if any.
3. The system of claim 1, whereas the means for determining comprises one or more prize spaces on a carrier of each enhanced gift card, each of the one or more prize spaces are occluded by an occlusion and each of the one or more prize spaces has content, the content is configured to indicate when each enhanced gift card is associated with one of the plurality of prizes such that the occlusion is configured to be removed, thereby the content is exposed to reveal a prize, if any.
4. The system of claim 1, whereas each enhanced gift card has a serial number and the computer system of the provider comprises a database operatively coupled to the computer system that records serial number of the plurality of enhanced gift cards that are associated with which of the plurality of prizes, the means for determining includes providing the serial number of the one enhanced gift card to the computer system of the provider to determine if this one enhanced gift card is associated with a prize.
5. The system of claim 3, wherein when a particular enhanced gift card is activated, a database is consulted to determine when any one of the plurality of prizes is associated with the one enhanced gift card.
6. The system of claim 4, wherein after the database is consulted to determine when any one of the plurality of prizes is associated with the one enhanced gift card, a message is emitted to inform when any one of the plurality of prizes is associated with the one enhanced gift card.
7. The system of claim 1, wherein a cost of each enhanced gift card in the plurality of enhanced gift cards is fixed at a face value of that enhanced gift card.
8. The system of claim 1, wherein a cost of each enhanced gift card in the plurality of enhanced gift cards is fixed at a face value of that enhanced gift card plus a fee.
9. The system of claim 1, wherein the means for providing one of the plurality of prizes comprises deducting a price of one of the plurality of prizes from a bill being paid for by each enhanced gift card.
10. A method of enhancing gift cards, the method comprising: providing a plurality of enhanced gift cards, each enhanced gift card in the plurality of enhanced gift cards having a monetary value for purchasing goods and/or services; providing a plurality of prizes; associating each prize of the plurality of prizes with a single enhanced gift card of the plurality of enhanced gift cards; and after purchasing one enhanced gift card of the plurality of enhanced gift cards, disclosing when the one enhanced gift card has been associated with one of the plurality of prizes.
11. The method of claim 10, whereas disclosing comprises removing one or more occlusions to reveal one or more hidden prize spaces, each of the one or more hidden prize spaces having content, the content indicating when the single enhanced gift card is associated with one of the plurality of prizes.
12. The method of claim 11, wherein the one or more occlusions and hidden prize spaces are on a surface of the single enhanced gift card.
13. The method of claim 11, wherein the one or more occlusions and hidden prize spaces are on a surface of a package in which the single enhanced gift card is provided.
14. The method of claim 11, wherein the one or more occlusions are scratch off coatings.
15. The method of claim 11, wherein the one or more occlusions are removable tabs or removable tape that cover the content until peeled back.
16. An enhanced gift card comprising: packaging for delivering the enhanced gift card to a purchaser; a serial number associated with the enhanced gift card; content on either the enhanced gift card or packaging around the enhanced gift card, the content indicating when the enhanced gift card is associated with a prize; and one or more removable occlusions that cover the content such that when the one or more removable occlusions are removed and a prize is associated with the enhanced gift card, the content indicates the prize.
17. The enhanced gift card of claim 16, whereas the one or more removable occlusions comprise scratch off coatings that are scratched off to reveal the content.
18. The enhanced gift card of claim 16, whereas the one or more removable occlusions comprise tape that is peeled off to reveal the content.
19. The enhanced gift card of claim 16, whereas the one or more removable occlusions on the packaging comprise cardboard tab that are opened to reveal the content.
Description
BRIEF DESCRIPTION OF DRAWINGS
[0014] The invention can be best understood by those having ordinary skill in the art by reference to the following detailed description when considered in conjunction with the accompanying drawings in which:
[0015] FIG. 1 illustrates a schematic view of a face of a gift card of the prior art.
[0016] FIG. 2 illustrates a schematic view of a back of a gift card of the prior art.
[0017] FIG. 3 illustrates a schematic view of a face of an enhanced gift card of the present invention.
[0018] FIG. 4 illustrates a schematic view of a back of an enhanced gift card of the present invention.
[0019] FIG. 5 illustrates a schematic view of a back of an enhanced gift card of the present invention after scratch-off.
[0020] FIG. 6 illustrates a schematic view of a back of another enhanced gift card of the present invention after scratch-off.
[0021] FIG. 6A illustrates a schematic view of a back of packaging for an enhanced gift card of the present invention in which the hidden prizes are occluded.
[0022] FIG. 6B illustrates a schematic view of a back of packaging for an enhanced gift card of the present invention in which the hidden prizes are visible.
[0023] FIG. 7 illustrates a table of pre-programmed winning for enhanced gift cards of the present invention.
[0024] FIG. 8 illustrates an exemplary activation user interface of an enhanced gift card of the present invention.
[0025] FIG. 9 illustrates a second exemplary activation user interface of an enhanced gift card of the present invention after entering the enhanced gift card information.
[0026] FIG. 10 illustrates a third exemplary activation user interface of an enhanced gift card of the present invention showing activation completion and a prize won by the recipient/activator.
[0027] FIGS. 11 and 12 illustrate exemplary program flows for the enhanced gift card of the present invention.
[0028] FIG. 13 illustrates a typical computer used by the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0029] Reference will now be made in detail to the presently preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Throughout the following detailed description, the same reference numerals refer to the same elements in all figures.
[0030] Throughout this disclosure, the term enhanced gift card 200 refers to a gift card having a certain monetary value that, after purchase, is used to by products and/or services and has features that provide for an added gift that is provided to any or all enhanced gift cards 200. It is anticipated that such gift will add to the excitement of purchasing and/or gifting the enhanced gift card 200, making it more fun/desirable to buy and/or gift an enhanced gift card 200 than to buy and/or gift a gift card 100 of the prior art.
[0031] Referring to FIGS. 1 and 2, schematic views of a gift card 100 of the prior art are shown. This example of a gift card 100 of the prior art includes a provider name 102 informing the holder where they might be able to redeem this gift card 100. In some cases, the provider name 102 is for a specific retailer or set of retailers while in some cases, the provider name 102 is the issuer for a gift card 100 that is of general use and not tied to a specific retailer. The front of the gift card 100 often displays an amount or value 104 of the gift card (e.g., $50.00), especially for gift cards 100 that are for specific retailers. Often, the gift card 100 has an embedded chip 110 for security and identification reasons. In FIG. 2, the back of the gift card 100 of the prior art is shown having some information 106 printed such as the card number of the gift card and instructions. The gift card 100 of the prior art also has a magnetic strip 108 for use in magnetic card readers (not shown) often used at retail point-of-sale registers.
[0032] Referring to FIGS. 3 and 4, schematic views of an enhanced gift card 200 of the present invention are shown. As with the gift card 100 of the prior art, in many embodiments, the enhanced gift card 200 includes a provider name 102 informing the holder where they might be able to redeem this gift card 100. In some cases, the provider name 102 is for a specific retailer or set of retailers while in some cases, the provider name 102 is the issuer for a gift card 100 that is of general use and not tied to a specific retailer. In many embodiments, the front of the enhanced gift card 200 shows an amount or value 104 of the gift card (e.g., $50.00), especially for enhanced gift card 200 that are for specific retailers. In many embodiments, the enhanced gift card 200 has an embedded chip 110 for security and identification reasons, as known. In FIG. 4, the back of the enhanced gift card 200 is shown having some information 106 printed such as the coded number of the gift card and instructions. In some embodiments, the enhanced gift card 200 has a magnetic strip 108 for use in magnetic card readers (not shown) often used at retail point-of-sale registers.
[0033] In some embodiments, at the time of purchase of the enhanced gift card 200, the purchaser has the ability to pay extra to create a golden version of the enhanced gift card 200. In such, the golden version of the enhanced gift card 200 is an automatic winner of some prize. As an example, the purchaser buys an enhanced gift card 200 having a $50.00 value but pays $60.00 for the golden version of the enhanced gift card. Now, when this golden version of the enhanced gift card 200 is gifted to a recipient, whatever mechanism is used (see below) to determine if the recipient is a winner, there will be some sort of gift that may be worth more or less than the additional $10.00 paid for the golden version of the enhanced gift card 200. In some embodiments, some or all of the additional fee (e.g., the additional $10.00) is retained by the marketer of the golden version of the enhanced gift card 200 to offset costs associated with the guaranteed gift. In some embodiments, the additional fee (e.g., the additional $10.00) is donated to a charity and in some such embodiments, the purchaser has the ability to select the charity to which the additional fee is donated. The golden version of the enhanced gift card 200 is a way to make receiving the enhanced gift card 200 more exciting for the recipients.
[0034] In some embodiments, a Golden-Plus version of the enhanced gift card 200 is offered in which the purchaser buys (pays for) the Golden-Plus gift enhanced card 210 at face value and also includes payment for a certain gift that the recipient will receive when they use or register the enhanced gift card 200. For example, the purchaser buys a Golden-Plus enhanced gift card 200 for one night at a specific hotel, paying for the night, and adds an automatic gift for a spa treatment. When the recipient of the Golden-Plus enhanced gift card 200 goes to the hotel to check in, the recipient is informed that they have won a spa treatment. This mechanism adds to the excitement of giving such Golden-Plus enhanced gift card 200 and to the excitement of using such Golden-Plus enhanced gift card 200.
[0035] In some embodiments, the packaging of the enhanced gift card 200 describes gifts that are possible (e.g., free coffee, $5.00 coupon, added value to the gift card). In some embodiments, an application on the purchaser or recipient's device (e.g., smartphone) is required to determine if the enhanced gift card 200 is a winner and to collect the gift. In some embodiments, this application requires the purchaser or recipient to play a simple game, either of luck or of skill, to be awarded the gift.
[0036] In some embodiments, the gift is a pre-determined number of points that the purchaser or recipient is able to use or bank towards redemption of a catalog of items. For example, if the gift is 100 points, the recipient is able to redeem the 100 points for a $10.00 gift card from a certain retailer (e.g., a retailer that provides marketing incentives) or a $8.00 gift card from a different retailer. Likewise in another example, the recipient has an account with 100 points for a previous enhanced gift card 200 and 100 points from a new enhanced gift card 200 and is able to select a nicer object or service from the catalog such as a baseball cap, another article of clothing or a personal training session.
[0037] In FIG. 4 the enhanced gift card 200 includes an opportunity for the recipient or user of the enhanced gift card 200 to win a prize. In this embodiment, the recipient or user of the enhanced gift card 200 has an opportunity to discover if they have won a prize by scratching off coatings over one or more hidden prize spaces 210 that are formed on the back of the enhanced gift card 200. This will reveal the content (e.g., text, numbers, icons, scannable code, QR Code) that is printed in the hidden prize space(s). The coatings occlude the content beneath the one or more hidden prize spaces 210 until the coatings are scratched off. The technology for fabricating such coatings over the hidden prize spaces 210 is well known in the industry and is often used to conceal activation codes on pre-paid gift cards. In this embodiment, for example, when the recipient or user of the enhanced gift card 200 wants to see if they have won a prize, the recipient or user uses an object (e.g., a coin) to scratch off the coating that is formed over each of the one or more hidden prize spaces 210, according to instructions 212 printed on the back of the enhanced gift card 200 or provided with the enhanced gift card 200, etc. Note for embodiments having a hidden QR Code, only a single hidden prize space 210 is present and, in some such embodiments, the QR code@ is not hidden as it will not be enabled until the enhanced gift card 200 is purchased.
[0038] FIG. 5 shows the back of an enhanced gift card after this scratch-off action was performed. In this example, there are six hidden prize spaces 210 that are now revealed and if three of the hidden prize spaces 210 show the same prize, the recipient or user wins whatever prize shown. For brevity, the hidden prize spaces 210 (now not hidden) show an assortment of prizes, PR1, PR2, and PR3. An example of possible prizes for a fast food retailer is PR1=free fries, PR2=free drink, and PR3=10% discount. An example of possible prizes for an airline gift card is PR1=free headset, PR2=1000 airline miles, and PR3=upgrade to 1st class. An example of possible prizes for an enhanced gift card 200 that is of general use is PR1=1000 points, PR2=logo pen, and PR3=2% added card value. The latter (2% added card value), for example, is added money automatically loaded onto the enhanced gift card 200. If the gift card was purchased loaded with a value of $50.00 and the recipient or user reveals this 2% added card value, the actual amount of money that is loaded onto this enhanced gift card 200 is $51.00 ($50.00 plus 2% of $50.00). Note that these are meant as examples of possible prizes and are in no way intended to limit the present invention as countless types and values of prizes are anticipated. Furthermore, the representation of the prizes in the hidden prize spaces 210 and the method of determining a winning prize is not restricted in any way. For example, in some enhanced gift cards 200, words are placed in the hidden prize spaces 210 (e.g., drink, fries, 1K miles, 2%) while in some enhanced gift cards 200, icons are placed in the hidden prize spaces 210 (e.g., an icon of a drink, an icon of fries, an icon of a cup of coffee). In some embodiments the determination of a winner is a simple statement that is in the hidden prize spaces 210 such as congratulations, you have won a free cup of coffee.
[0039] In FIG. 5, the now revealed hidden prize spaces 210 show two PR1, two PR2, and two PR3. Therefore, according to the instructions 212 of this embodiment of the enhanced gift card 200A, the enhanced gift card 200A shown in FIG. 5 has not won a prize. Again, note that any type of hidden game is anticipated, and the three-match game is but one example. Other examples include, but are not limited to, a poker-style hidden game, a number game, a word game or a scannable code (e.g., a QR Code) that links through the world-wide web to a digital game. In some embodiments, there is no actual game, and simply a statement of win or lose or a scannable code (e.g., QR Code) that provides a link to a web site that indicates win/lose, and if win, the prize that was won.
[0040] In FIG. 6, the now revealed hidden prize spaces 210 show three PR1, two PR2, and one PR3. Therefore, according to the instructions 212 of this embodiment of the enhanced gift card 200B, the enhanced gift card 200B shown in FIG. 6 has won whatever prize PR1 represents as there are three PR1s 214 revealed. For example, if PR1 is an icon of fries, the recipient or user is able to receive a free order of fries when they use this enhanced gift card 200B at the retailer. Note that, in some embodiments, it is fully anticipated that a single use mechanism be provided so that the recipient or user of the enhanced gift card 200 is not able to receive the prize multiple times. For example, a void scratch-off area 219 is included on the back of the enhanced gift card 200B, for example, having the word void. under the scratch off material so that, after the recipient or user presents the card for redemption of the prize, the clerk is able to scratch off the material over the void scratch-off area 219 to reveal the word void, making it so that upon subsequent uses of the enhanced gift card 200B, the prize is not maliciously or inadvertently received again. In some embodiments, the distribution of the prize is recorded in a database, associated with the serial number, a scannable code (e.g., a QR Code) or number of this enhanced gift card 200 to prevent subsequent disbursements of the prize. For example, when the recipient or user provides the enhanced gift card 200B for payment of an order at the retailer's point of sale terminal and the recipient has ordered the item of the prize (e.g., has ordered fries if PR1 is fries), then before deducting the price of the fries from the ticket, a database is checked to see if the free fries have already been provided to the recipient or user of this specific enhanced gift card 200B. Once the free fries have been provided, the database is marked to indicate such so that on subsequent uses of this specific gift card 200B, there will be no deduction for the price of the fries. There are many ways to restrict the winning enhanced gift cards 200B to only allow the recipient or user to receive the prize a single time, all of which are fully anticipated and included herein. In some embodiments, it is possible for the recipient or user to receive the prize more than once as long as there remains value on the enhanced gift card 200B. For example, 10% off each time the recipient or user makes use of the enhanced gift card 200B to make a payment.
[0041] In some embodiments as shown in FIGS. 6A and 6B, the hidden prize spaces 210A are printed/formed on a holder or carrier 250 (e.g., cardboard sleeve) in which the enhanced gift card 200 is marketed and the hidden prize spaces 210A are revealed after purchase of the enhanced gift card 200. In FIG. 6A, the hidden prize spaces 210A are occluded by a tab 252 (e.g., a cardboard tab or peel-back tape, though any method of occlusion is fully anticipated). The recipient would then peel back the tabs 252 (e.g., remove occlusion) as shown in FIG. 6B to reveal the hidden prize spaces 210A which are shown revealed in FIG. 6B. Note that in this example, the hidden prize spaces 210A in the last row show three coffee cups, indicating that the recipient has won a prize of a free cup of coffee, though any type of indicia and any type of indications of a win/loss are fully anticipated, for example, but not limited to: words indicating that the recipient won, icons that do not relate to the prize, icons that relate to the prize such as a package of potato chips indicating the prize is a bag of potato chips, a single icon, and a dollar amount.
[0042] Referring to FIG. 7, a table or database 300 of scratch-off or pre-programmed winning for enhanced gift cards 200 of the present invention is shown. This database 300 includes the serial numbers 302 of the enhanced gift card 200, the gift 304 associated with that enhanced gift card 200, and in some embodiments, a field 306 indicating whether the gift 304 of each specific enhanced gift card 200 has been redeemed. For example, the second free drink has already been redeemed. In the embodiments above, a database 300 like this is used to track when each gift 304 has been redeemed for each specific enhanced gift card 200. In some embodiments, this database 300 also includes the serial number 302 of all enhanced gift cards 200, including those that have no gift 304 associated with that enhanced gift card 200. In some embodiments, the database 300 is an existing database used in back-end processing of gift cards, and is modified to add the gift 304 field for enhanced gift cards 200.
[0043] In some other embodiments, notice of winning the gift 304 is announced when the recipient or user activates the enhanced gift card 200. Activation is known in the industry and typically includes visiting a trusted website and entering the serial number 302 of the enhanced gift card 200 and an activation code 308. In such embodiments, the serial number 302 is verified and checked to make sure the activation code 308 matches as known in the art. If they match, the gift card is activated. In some embodiments of the present invention, upon activation of the enhanced gift card 200, the database 300 is accessed to determine if this specific enhanced gift card 200 has been awarded a prize or gift 304 and, if so, a message is displayed to the recipient or user informing the recipient or user of the enhanced gift card 200 as to the value of the prize or gift 304. Thereafter, when this enhanced gift card 200 is used, the prize or gift 304 is redeemed. For example using the example shown in FIG. 7, when the recipient or user makes a purchase using the enhanced gift card 200 having the card number of 37111002211991 (first entry in the database 300) and the recipient or user purchases a drink, the cost of the drink is set to zero (free drink). In some embodiments, the database is then updated to change the collected field 306 to indicate that the prize has been collected (e.g., Y) so that upon subsequent uses of the enhanced gift card 200 having the card number of 37111002211991, no further free drinks are rewarded.
[0044] Referring to FIG. 8-10, exemplary activation user interfaces an enhanced gift card 200 of the present invention are shown. In FIG. 8, the recipient or user of the enhanced gift card 200 uses a device 401 to navigate to a web page or opened an application showing the activation user interface 400. In this example, the activation user interface 400 is greatly simplified for brevity and clarity and such information such as identification of the retailer or issuer of the enhanced gift card 200, information telling the user what to do, help screens, etc., is left out. In the activation user interface 400, there is a first entry field 404 for entering the serial number 302 of the enhanced gift card 200 and a second entry field 406 for entering the activation code 308. Additionally, there is an activation feature 420 for initiating the activation.
[0045] In FIG. 9, the user has entered the serial number 302 of the enhanced gift card 200 into the first entry field 404 and the activation code 308 into the second entry field 406.
[0046] In FIG. 10, the user has invoked the activate feature 420 for initiating the activation (e.g., clicking or double clicking) and the website has responded with a first message 430 indicating that activation was successful. As the card being activated is an enhanced gift card 200, determination has been made whether a prize is to be awarded (e.g., using the database 300) and, if a prize is to be awarded, a message regarding the prize 440 is displayed. In this example, the recipient or user of the enhanced gift card 200 is being awarded a free headset for use on their next flight by providing the attached QR Code to a flight attendant.
[0047] Note that any user interface is anticipated, including, but not limited to, application-based user interfaces (e.g., using a smartphone application or PC application to activate and find out if a prize that is awarded), voice/touchtone user interfaces (e.g., calling a phone number to activate and find out if a prize that is awarded), and in-person user interfaces (e.g., talking to a representative to activate and find out if a prize that is awarded).
[0048] Referring to FIGS. 11 and 12, a typical program flow of an embodiment of the present invention is shown. In FIG. 11 of this embodiment, before any enhanced gift card 200 is distributed/sold, a list of prizes is identified 500 (e.g., 20 free drinks, 25 free fries, 50 10%-off coupons). Now the list of all possible card numbers is allocated 502 and put into a list. Finally, each of the prizes in the list of prizes is associated 504 (or assigned) randomly to one of the card numbers.
[0049] In FIG. 12 of this embodiment, one of the cards in the list is being activated. This starts with reception 520 of the serial number and the activation code. As in the prior art, the card number and activation code are validated 522 to make sure that the card is valid. If the card number and activation code does not validate 524, a failure message is emitted 526 (e.g., displayed on the user's device).
[0050] If, instead, the card number and activation code does validate 524, then the list of cards is checked 530 to see if this card number was associated with a prize. If the card number is not associated 534 with a prize, since the card activated successfully, a successful activation message is emitted 540.
[0051] If the card number is associated 534 with a prize, since the card activated successfully, a successful activation message is emitted along with a description and/or access code for the prize is emitted 544.
[0052] Referring to FIG. 13, a schematic view of a typical computer system is shown. The example computer system 560 represents a typical computer system used for back-end processing, generating reports, displaying data, etc. This exemplary computer system 560 is shown in its simplest form. Different architectures are known that accomplish similar results in a similar fashion and the present invention is not limited in any way to any particular computer system architecture or implementation. In this exemplary computer system, a processor 570 executes or runs programs in a random-access memory 575. The programs are generally stored within a persistent memory 574 and loaded into the random-access memory 575 when needed. The processor 570 is any processor, typically a processor designed for computer systems with any number of core processing elements, etc. The random-access memory 575 is connected to the processor by, for example, a memory bus 572. The random-access memory 575 is any memory suitable for connection and operation with the selected processor 570, such as SRAM, DRAM, SDRAM, RDRAM, DDR, DDR-2, etc. The persistent memory 574 is any type, configuration, capacity of memory suitable for persistently storing data, for example, rotating magnetic storage, flash memory, read only memory, battery-backed memory, magnetic memory, etc. The persistent memory 574 (e.g., disk storage) is typically interfaced to the processor 570 through a system bus 582, or any other interface as known in the industry.
[0053] Also shown connected to the processor 570 through the system bus 582 is a network interface 580 (e.g., for connecting to a data network 581), a graphics adapter 584 and a keyboard interface 592 (e.g., Universal Serial Bus-USB). The graphics adapter 584 receives commands from the processor 570 and controls what is depicted on a display 586. The keyboard interface 592 provides navigation, data entry, and selection features.
[0054] In general, some portion of the persistent memory 574 is used to store programs, executable code, data, databases, and other data, etc.
[0055] The peripherals are examples, and other devices are known in the industry such as pointing devices, touch-screen interfaces, speakers, microphones, USB interfaces, Bluetooth transceivers, Wi-Fi transceivers, image sensors, temperature sensors, etc., the details of which are not shown for brevity and clarity reasons.
[0056] Equivalent elements can be substituted for the ones set forth above such that they perform in substantially the same manner in substantially the same way for achieving substantially the same result.
[0057] It is believed that the system and method as described and many of its attendant advantages will be understood by the foregoing description. It is also believed that it will be apparent that various changes may be made in the form, construction, and arrangement of the components thereof without departing from the scope and spirit of the invention or without sacrificing all of its material advantages. The form herein before described being merely exemplary and explanatory embodiment thereof. It is the intention of the following claims to encompass and include such changes.
