SYSTEMS AND METHODS FOR EXTRUDED ZIPPERS, ZIPPER GARAGES, CONNECTION TECHNIQUES, AND USES THEREFORE
20220031028 · 2022-02-03
Inventors
- Daniel J. Martinson (Medina, MN, US)
- Kent H. Brightman (Rogers, MN, US)
- Bowden Ormsbee (Longmont, CO, US)
- Richard Case (Boulder, CO, US)
Cpc classification
A44B19/36
HUMAN NECESSITIES
B65D33/2508
PERFORMING OPERATIONS; TRANSPORTING
A44B19/42
HUMAN NECESSITIES
A44B19/16
HUMAN NECESSITIES
A44B19/32
HUMAN NECESSITIES
International classification
A44B19/16
HUMAN NECESSITIES
A44B19/32
HUMAN NECESSITIES
A44B19/36
HUMAN NECESSITIES
Abstract
A slider garage includes an overmolded body, the overmolded body oriented on a zipper, the overmolded body including an overmolded male portion and an overmolded female portion, the overmolded male and female portions positioned on an end of the zipper, such that each is on one side of the zipper, the overmolded male portion being shaped such that it fits in the overmolded female portion in a watertight fashion and the overmolded body is molded over a portion of the zipper.
Claims
1. A zipper comprising: a male zipper side, the male zipper side including a cross portion, the cross portion providing a smooth and regular edge; a female zipper side, wherein the female zipper side receives the male zipper side and a first air pocket is created between the female zipper side and the male zipper side.
2. The zipper of claim 1, wherein the cross-portion interfaces with a slider positioned on the zipper.
3. The zipper of claim 2, wherein a second space is created between the female zipper side and the male zipper side.
4. The zipper of claim 3, wherein the female zipper side includes a socket portion and the male zipper side includes a ball portion and the ball portion engages the socket portion.
5. The zipper of claim 4, wherein the ball portion extends via a thin neck.
6. The zipper of claim 5, wherein the male zipper side includes a cross portion, the cross portion extending approximately perpendicularly away from the thin neck.
7. The zipper of claim 6, wherein the socket portion is u-shaped.
8. The zipper of claim 7, wherein the second space is located between a tip of the socket portion and the cross portion.
9. The zipper of claim 8, wherein the socket portion is curved at the tip and having a first curve and an intersection of the cross portion and the thin neck is curved and having a second curve, such that the second curve is greater in depth as compared to the first curve, therefore forming the second space.
10. The zipper of claim 9, wherein a first shape of the socket portion at the tip and a second shape at the intersection of the cross portion and the thin neck is such that the first shape and the second shape form the second space.
11. The zipper of claim 10, wherein the second space provides for more give in the zipper and provides for easier attachment of the male zipper portion from the female zipper portion.
12. The zipper of claim 11, wherein there is no break in the male zipper portion and the female zipper portion.
13. A zipper comprising: a male zipper side, the male zipper side including a cross portion, the cross portion providing a smooth and regular edge, the cross-portion interfacing with a slider positioned on the zipper; a female zipper side, wherein the female zipper side receives the male zipper side and a first air pocket is created between the female zipper side and the male zipper side.
14. The zipper of claim 13, wherein a second space is created between the female zipper side and the male zipper side, the female zipper side includes a socket portion and the male zipper side includes a ball portion and the ball portion engages the socket portion, the ball portion extends via a thin neck, the male zipper side includes a cross portion, the cross portion extending approximately perpendicularly away from the thin neck, and wherein the second space is located between a tip of the socket portion and the cross portion.
15. A zipper comprising: a male zipper side; a female zipper side; wherein the male zipper side includes a cross portion, the cross portion and the female zipper side defining a second space, the cross portion providing a smooth and regular edge, the cross-portion interfacing with a slider positioned on the zipper.
16. The zipper of claim 15, wherein the ball portion extends via a thin neck.
17. The zipper of claim 16, wherein the male zipper side includes a cross portion, the cross portion extending approximately perpendicularly away from the thin neck.
18. The zipper of claim 17, wherein the socket portion is u-shaped.
19. The zipper of claim 18, wherein the second space is located between a tip of the socket portion and the cross portion.
20. The zipper of claim 19, wherein the female zipper side receives the male zipper side and a first air pocket is created between the female zipper side and the male zipper side.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
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DETAILED DESCRIPTION OF THE DRAWINGS
[0035] Described herein are embodiments of an improved zipper slider garage (referred to as “slider garage” at times) and methods of using it and making it as well as a variety of zipper systems that may be employed in a variety of configurations. Generally, but not exclusively, the term “zipper system” as used herein, includes any of a zipper having a male and female side with a ball in socket connection system, a zipper having a male and female side with a ball in socket connection system including a slider, zipper having a male and female side with a ball in socket connection system including a slider and a slider garage, and a zipper including a slider garage, the slider garage having a male and female side for sealing the garage. Of the many advantageous aspects of the improved zipper slider garage, the slider garage includes a shape that provides for an interference fit between the slider of the zipper (or referred as “zipper assembly”) and the slider garage. This interference fit provides for a seal at the end of the zipper making the zipper waterproof. Although this is a feature that makes the slider garage waterproof, there are many additional features that serve to make the slider garage function in a user friendly and optimal fashion. These features include the male side of the zipper extends further into the slider garage than the female side, the sliding lock mechanism of the zipper, the material of the zipper and the slider garage, and the flexible design of the slider garage. In many embodiments, zipper systems described are waterproof and may be airtight. In many embodiments and alternatives, various pieces of the zipper and slider garage may be used alone, or in combination with other elements described herein. Additionally, these embodiments and alternatives may be incorporated into any device, clothing, or structure as further discussed below.
[0036] This forms the basis for many different embodiments of zippers, zipper slider garages, and items including waterproof zippers. In many embodiments, the zipper takes a basic form of a ball in socket. Essentially, the ball is received by the socket of the zipper and is held in a place by flexing the socket. Additionally, the socket may include an air pocket which assists in holding the socket in place. In many embodiments, the slider garage may be molded over the end of the zipper. The zipper in many configurations includes a slider that causes the ball portion of the socket to be pressed into the socket portion. The slider may be designed to mate with the slider garage. In many configurations, the slider garage may include an interior protrusion that fits into a female receiver in the slider garage itself. The ability to mold over the existing zipper male and female side with a slider garage having a corresponding male and female side is advantageous and assists with sealing off the zipper. In many configurations, the zipper is attached via a flange, the flange being heat welded, glued, or otherwise attached to another body. At times, each side of the zipper (either the male or female portion) may be referred to as a side of the zipper. The zipper, the ball-in-socket arrangement, the flange, and the zipper garage may be implemented alone or in combination with the other parts described herein.
[0037] Many materials may be utilized to create the zipper, the slider, and the slider garage and any parts of the systems described herein. The materials described may be used alone for these portions or in combination, without limitation. Possible materials include, but are not limited to, TPE, Silicone, Elastomers, PET polyethylene terephthalate, Neoprene, Nitrile Rubber, Butyl Rubber, Recycled Content, TPU, Nylon (fabric and plastic), Polyester, EPTFE/Gortex, Cotton, Canvas, EVA Foam, Polyurethane, Polyethylene, Polycarbonate, Polypropylene, ABS (Acetyl Butyl Styrene), Polystyrene, EPDM Rubber, PVC, Vinyl, Tyvek®, Tychem®, Kevlar®, Nomex®, Aluminum, Steel/Stainless Steel, and Wood, and any other material that will occur to one of ordinary skill in the art. These materials, for instance may merely form a portion of the slider or may form a portion of one of the sides of the zipper (for instance, the rail portion may be formed of wood and the ball and socket portion formed of TPE.
[0038] The zippers, sliders, and slider garages (collectively zipper system(s)), may be deployed in a wide variety of contexts. The zipper systems may be deployed anywhere on clothing, including gloves, footwear, and headwear. For instance, zipper systems may be used on pockets on clothing, closures on clothing, vents on clothing, identification pockets on clothing, zip-off pants legs on convertible clothing (or breakaway clothing), zip-off sleeves on convertible clothing (or breakaway clothing), zip-off gloves on clothing (or breakaway clothing), zip-off feet coverings on clothing, zip-off hoods or other head coverings, personal protection/hazardous material protective clothing, military/tactical clothing and equipment, fishing waders, or footwear zipper. Essentially, any closure or attachment point on clothing may incorporate a zipper system.
[0039] Additionally, the zipper system may be deployed variety of bags and enclosures including, but not limited to, cooler bags, backpacks, packs, suitcases/travel bags, suitcase/packing pouches, toiletry bags/makeup bags, wallets, pouches, phone cases/pouches, food bags (reusable food/freezer bags, food bags with a vacuum evacuation tube, ice bags/packs, pocket flask, hydration pack/bag), tool bag, trash/animal refuse bag, emergency/first aid kit, dry bags (for weapons (rifles, handguns, ammunition)), body bags, rooftop bags for vehicles, ski and snowboard bags, avalanche pack (where the rails intentionally separate to deploy the airbag), panniers for bicycles, motorcycles, and scooters.
[0040] Additionally, the zipper system may be deployed in inflatable objects. This includes, but is not limited to, bouncing houses and other pressurized playhouses, balls, mats, sleeping maps, inflatable furniture, ice packs, heat packs, and other objects. The zipper system may be deployed over inflation areas that may include other valves to provide additional sealing. Additionally, the zipper system may be utilized as the sealing system itself. The zipper system may also be used in inflatable tent tubes.
[0041] The zipper system lends itself to use in document and electronic document protection. The zipper system may be used in zipper document pouches for instructions, school work, legal documents, and other documents. The zipper system may be used in the waterproofing of safes by putting a zipper sealable membrane inside or outside of the safe. The zipper system may be used in a laptop sleeve or with a shroud for equipment protection.
[0042] In many embodiments, the zipper is attached via flanges to another object, such as a pouch/bag, clothing, or other object. Alternatively, the zipper may be directly attached via the zipper sides. A side variety of techniques may be used to connect the zipper, either by the flanges or otherwise. Techniques include, heat welding, glue, extrude over the object to be bound to, sewn, heat seal/tape-heat activated glue, radio frequency or high frequency welding (separate from heat welding), insert molded/inset, or any combination of the above.
[0043] The zipper system may even be used in the closure of rooms. The zipper system may provide airtight seals for surgery, diseases, hazardous materials, clean rooms, hyperbaric chambers, etc. Because the zipper system provides an airtight seal, when coupled with other airtight materials, sealed rooms or areas may be achieved. The zipper system may be deployed on a tent (for any place on a tent body, including, but not limited to: body, fly, single wall, removable floor, etc.), especially including areas needing water proofing. The zipper system may be deployed in a bivy sack, a portaledge, and access point to an area containing sensitive equipment that needs protection from the elements or that may need periodic inspection or maintenance.
[0044] In some configurations, the zipper system is used to connect items. In some configurations, the zipper system may be used to connect a plurality of tubes. Each end of a tube may include a zipper system, so that numerous tubes may be interconnected. In such a configuration, a long tube may be easily created of the desired length may be created. Additionally, the connection of items may include the connection of molded plastic parts (e.g. separators in a cooler). Additionally, the zipper system may be used in removable panels.
[0045] In some configurations, the zipper system may be used in safety release systems. For instance, if a small portion of a zipper is used, then the zipper may serve as a quick release that will release under a sufficient force, as the socket is deformed to release the ball portion.
[0046] In many embodiments, the zipper system may have a variety of different ends at the termination points of the zipper. Types of ends may include a zipper garage as described in many places herein. The zipper system may have a garage at either end of the device. Additionally, the zipper system may include a closed end, such that the end is welded or otherwise connected together but does not include a garage. In some configurations, the end may be left open, such that the slider may be slid off of the end. In other configurations, one half of the zipper may extend beyond the other side and may be stopped or closed, such that the zipper may be slid beyond one rail but not the other and re-interfaced with the non-stopped rail. In some embodiments, the slider garage may be a double-sided garage, such that the garage may receive a slider on either side. Additionally, in some embodiments the zipper system may include two sliders that each slide towards a slider garage at opposing sides of the zipper system (or alternatively, there may be only one garages or no garages). In some embodiments, both sides of the zipper are open, in that there is no slider garage or stop at either end of the zipper. In some configurations, the slider itself may have a garage on an opposing side of the slider that may receive another slider in a two-slider configuration. All of these configurations described herein may be implemented in any of the deployments described, such as bags, clothing, etc., as described above. Also, the entirety of the flange/zipper/slider garage combination need not be implemented; any one piece can be implemented.
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[0048] Many aspects of the slider garage 100 are visible in
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[0050] When broken down to the simple components that seal the zipper 101, transition point 185 is important to recognize. As a slider moves down zipper 101 and begins to engage slider garage 100, the inner portion of the slider begins to engage the incline portions 171, 172. After the down facing inner portion of the slider passes transition point 185, the waterproof seal is formed. The seal may form for a number of reasons including, but not limited to, the engagement of the male and female overmolded portions and the engagement of the slider with the slider garage. This might be accomplished without incline portions 171, 172; and slider garage 100 might have a hard transition, in some alternatives, at point 185, from providing no contact and/or interference with the down facing inner portion of the slider to an amount of interference that seals the zipper 101 and slider garage 100. As can be discerned, the slider would be difficult to operate in such a scenario, since the slider and the slider garage 100 would have to flex significantly over a short distance. This would require a lot of force from the user. Therefore, a first aspect of the innovation in the slider garage 100 is that the slider seals against inner wall 170, making the closure waterproof. Another innovation is that incline portions 171, 172 make the transition of the slider into a sealed position gradual, utilizing the wedge that incline portions 171, 172 provide. Pulling the slider towards the wedge provides an upward force approximately perpendicular to the movement of the slider. The aspect of incline portions 171, 172 make the zipper 101 easier to operate.
[0051] In some configurations, even with the inclusion of incline portions 171, 172, the zipper may still be difficult to operate. In order to have a strong seal, inner wall 170 must be rigid enough to avoid flexing in such a way to break the seal between the slider and the inner wall 170. In order to accomplish this, inner wall 170 may be thickened or made of stiffer material. Although this ensures a seal, engaging and disengaging a slider from slider garage 100 may be more difficult due to the lack of give and flex. In order to enable a thinner and more flexible inner wall 170, side wall 140, supports 150, 151, 152, 153, 154, and voids 160-165 have been included in many embodiments. These side walls 140, supports 150, 151, 152, 153, 154, and voids 160-165 provide for both flexibility of slider garage 100 and stiffness to resist unwanted release of the seal between the slider and slider garage 100.
[0052] Note that supports 150, 154 approximately coincide with transition point 185. This is an important location on slider garage 100. Since transition point 185 is the primary point where seal is achieved, this point in many configurations is optimized by including supports 150, 154 at the same point. Therefore, slider garage 100 is prevented from flexing greatly at this point, while at the same time more flex is enabled before and after the transition point 185 by voids 160, 161, 164, 165. The other supports and voids function in a similar fashion to enable flexion and support. Similarly, flange 180 may assist in providing give and flexion to the entire device.
[0053] In addition to the structure of slider garage 100, the material that is used is optimized as well. Typically, zipper 101, the slider, and slider garage 100 are composed of TPU (Thermoplastic polyurethane). Unlike Olefin-based plastics, TPUs are crosslinked polymer elastomers that exhibit rubber-like properties at high and low durometers. TPU polymers exhibit extremely high tensile and tear strengths and high elongation properties at high and low temperature extremes. TPU polymers also exhibit superior compression set resistance. TPU polymers are designed for use in extreme outdoor applications. In sealing applications, such as slider garage parts, relatively low durometer material is used because of its excellent sealing properties that include being soft/malleable and tacky/being able to stick to itself. The side effect of these excellent sealing properties is that they also tend to be tacky and “stick” to other materials on contact. In a slider garage application, because of the interference fit between the slider and slider garage 100, this effect is amplified, making the slider somewhat problematic to fully engage and disengage slider garage 100. As a solution in some alternatives, slider garage 100 is made of a compounded material. The compound consists of a 75 A durometer TPU material and a slip agent. This specific combination of materials produces a part that retains excellent sealing properties and at the same time allows the slider to easily engage and disengage slider garage 100. Additionally, in alternatives, the TPU material may be textured. Light regular and irregular textures may be applied to the TPU material. These textures are typically between 0.01 millimeters and 1 millimeter in depth, size, and spacing, where the arrangement may be a combination of different depths, sizes, and spacing as well. Typically, these textures are less than 0.1 millimeters in depth. The textured nature of the TPU may prevent the TPU from sticking or adhering to itself and may increase ease of use in sliding parts past each other.
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[0062] In many embodiments, the interior of the zipper garage itself includes a male and female portion. This can be seen in
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[0072] This is a unique use of the over-molding process for assembly, which allows parts to be butted together to form a flat and continuous surface between parts. This saves on material costs, and on mold tooling complexity. In this case, the flat surfaces formed, allow the zipper assembly 20 to be bonded (in this case, RF welded, or any other method described herein) to the fabric of a garment or bag 10, so that a hermetic seal is possible between them. Overlapping portions, or material discontinuities, would otherwise make the step of complete sealing very difficult, if not impossible. In this usage, the over-molded end cap 40 uses the same material as the extrusions 30 and 31, which is of the same durometer/hardness, 80-90 Shore A. Any of the materials herein may be used however.
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[0074] The fastener assembly 25 is secured with a mechanical “ball-and-socket” union (a combination of a press fit and an interference fit) as well as with a vacuum. The female member 32 of female extrusion 30 accepts the male member 33 of male extrusion 31 to form a precision fit and a vacuum seal. The corresponding features shaped into each mating part 32 and 33 actually force all of the air out of the cavity 35 of fastener assembly 25, and creates what is called the vacuum fit. This special fit resists separation and bolsters the strength of the mechanical union between the two mating parts or extrusions 30 and 31 by mating surfaces 38 and 44.
[0075] Also, because all of the air is removed from between the two parts, female member 32 and male member 33, upon fastening, any capillary action that would otherwise fill voids or the cavity 35 with water (or other fluid) is prevented. Another hermetic seal is produced between the two extrusions 30 and 31.
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[0079] The slider 50 is injection-molded of a hard plastic with a low coefficient of friction, in this case, acetal with 20% polytetrafluoroethylene (PTFE) (Teflon®). Any of the materials described herein are possible.
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[0081] The previous detailed description is of a small number of embodiments for implementing the systems and methods for creating a slider garage and the systems of slider garages and zippers and is not intended to be limiting in scope. The following claims set forth a number of the embodiments of the systems and methods for creating slider garages and the systems of slider garages disclosed with greater particularity.