Centripetally assisted pre-formed cigarette wrapper filler

Abstract

A rotating platform has a peripheral wall to form a catch basin. A donut shaped wrapper housing can hold perhaps 50-100 cigarette wrappers facing inbound with a closed end projecting out an outer wall exit hole into the catch basin. Tobacco or any work material is dropped onto the center of the rotating platform which may be motor driven. Centripetal forces urge the work material into the wrappers. Empty wrapper channel feed the excess material into the catch basin. A lid prevents loss of work material.

Claims

1. A cigarette wrapper filling machine comprising: a circular rotatable platform having a center axis of rotation and a peripheral edge; said peripheral edge having a retaining wall to form a catch basin between itself and a donut shaped wrapper housing having a height the same as the retaining wall; said donut shaped wrapper housing having an inner circular wall with a plurality of adjacent entry ports sized to receive a cigarette wrapper; each entry port tapering wider outbound to form a wrapper channel with an exit hole which communicates into the catch basin; and wherein rotation of the circular rotatable platform and placing a wrapper into each of a plurality of wrapper channels and placing a work material inbound from the inner circular wall forces the work material into the cigarette wrappers and forces the work material out the exit holes in any empty wrapper channel.

2. The machine of claim 1, further comprising a lid with a central hole for receiving the work material.

3. The machine of claim 2, further comprising a motor drive means functioning to rotate the rotatable platform and a brake means functioning to stop a rotating platform.

4. The machine of claim 3 further comprising a lid detector means functioning to depower the motor drive means when the lid is not mounted on the rotatable platform.

5. The machine of claim 1, wherein the adjacent entry ports are square.

6. The machine of claim 1, wherein the wrapper channel is frustoconical.

7. The machine of claim 1, wherein placing a wrapper into each of plurality of wrapper channels further comprises placing an outbound tip of each wrapper outside the exit hole.

8. The machine of claim 3, wherein the motor drive means further comprises a motor frame having an axle to the circular rotatable platform, and the motor drive means has a drive pulley that drives a belt to drive the axle.

9. A cigarette wrapper filling machine comprising: a rotatable platform having a center axis of rotation and a peripheral edge; said peripheral edge having a retaining wall to form a catch basin between itself and a donut shaped wrapper housing; said donut shaped wrapper housing having an inner circular wall with a plurality of adjacent entry ports sized to receive a cigarette wrapper; each entry port tapering wider outbound to form a wrapper channel with an exit hole which communicates into the catch basin; and wherein rotation of the rotatable platform and placing a wrapper into each of a plurality of wrapper channels and placing a work material inbound from the inner circular wall forces the work material into the cigarette wrappers and forces the work material out the exit holes in any empty wrapper channel.

10. The machine of claim 9 further comprising a lid with a central hole for receiving the work material.

11. The machine of claim 10 further comprising a motor drive means functioning to rotate the rotatable platform.

12. The machine of claim 11 further comprising a lid detector means functioning to depower the motor drive means when the lid is not mounted on the rotatable platform.

13. The machine of claim 9, wherein the adjacent entry ports are square.

14. The machine of claim 9, wherein the wrapper channel is frustoconical.

15. The machine of claim 9, wherein placing a wrapper into each of a plurality of wrapper channels further comprises placing an outbound tip of each wrapper outside the exit hole.

16. The machine of claim 11, wherein the motor drive means further comprises a motor frame having an axle to the circular rotatable platform, and the motor drive means has a drive pulley that drives a belt to drive the axle.

17. The machine of claim 9, wherein the rotatable platform is circular.

18. The machine of claim 11, wherein the motor drive means further comprises a brake means functioning to stop a rotating platform.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) FIG. 1A is a top plan view of the rotatable platform with a cover.

(2) FIG. 1B is a top plan view of the rotatable platform without a cover.

(3) FIG. 2A is a cross sectional view of the rotatable platform shown in FIG. 2

(4) FIG. 2B is a cross sectional view of the rotatable platform with a central opening for an axle.

(5) FIG. 3A is a top perspective view of the rotatable platform.

(6) FIG. 3B is a close up front elevation view of four entry ports shown in FIG. 3A.

(7) FIG. 4 is a top plan view with a cutaway of the lid on a rotatable platform.

(8) FIG. 5 is a close up view of a wrapper in a wrapper channel.

(9) FIG. 6 is a side elevation view of a cigarette wrapper.

(10) FIG. 7 is a top perspective view of an electrically powered filler machine.

(11) Before explaining the disclosed embodiment of the present invention in detail, it is to be understood that the invention is not limited in its application to the details of the particular arrangement shown, since the invention is capable of other embodiments. Also, the terminology used herein is for the purpose of description and not of limitation.

DETAILED DESCRIPTION OF THE DRAWINGS

(12) In an embodiment of the invention, the problem of packing a plurality of pre-rolled cigarette wrappers is solved by an apparatus 1 comprising a rotational platform with a rotational axis at its center of mass and a plurality of recesses. The rotational platform is constructed from a rigid or semi-rigid material that includes but is not limited to metal, polymer, wood and other organic or inorganic materials. The recesses 6 exist in a raised perimeter boundary offset from the center of the platform and are designed to hold a plurality of cylindrical or conical objects such as a pre-formed cigarette wrapper. Notably, in FIGS. 3A, 3B the transition of the exterior wall 9 to the exit port 11 features tapering from the rectangular aperture 10 to avoid accumulation of cigarette fill on the walls surrounding the recesses 6. In use, the pre-formed cigarette wrappers are inserted into the recesses 6 in preparation for filling. When the wrappers are inserted to enable the manufacture of the desired number of cigarettes, the user spins the platform manually, or optionally with assistive mechanism or electrically driven motor. When the platform has reached a predetermined speed, the user deposits the filler material substantially in the center of the rotating platform at which point the filler material is distributed to the perimeter boundary and into the pre-formed wrappers constrained by the recesses.

(13) In a separate embodiment of the apparatus the rotational platform exhibits a planar designed to enable the complete and even distribution of filler material away from the center of the rotational platform of a substantially circular form. In one embodiment, the rotational platform utilizes a downward draft angle from the central rotational axis 8 providing a substantially conical shape. This contour may enable a complete and more homogeneous distribution of filler material away from the center than the alternative of a substantially planar rotational platform.

(14) Furthermore, the preferred embodiment of the apparatus is comprised of a rotational platform of a substantially circular shape and recesses at a circumferential raised boundary with an external rectangular profile which transition to a conical or cylindrical form, thereby mitigating the problem associated with creating ineffective area and approaches a fully effective area for a more efficient production and need for excess filler material to make up for ineffective area.

(15) In yet another embodiment of the invention, the apparatus comprising of a planar rotational platform with a substantially circular profile and circumferential raised boundary with a plurality of recesses 6, an electrically driven motor and integrated braking mechanism enabling the user to use the apparatus with higher, more consistent and more controllable speeds providing for a more consistent product and ability. As a result of the inherent higher speeds of operation (500-2000 rpm) associated with an electrically driven motor, the problem arises of stopping such a device in a controlled manner without risking the injury of the user. The integrated braking mechanism allows the user to stop the unit in an abbreviated period of time safely versus allowing for spin-down or utilizing a foreign object or hand to expedite the spin-down.

(16) Such a braking device may exist in the form of electrical current control to provide active resistance, by means of frictional braking, magnetic resistance or any other method of braking appreciated by one skilled in the art. In one such embodiment of the apparatus, the braking mechanism exists as a magnetic braking mechanism with ferrous points embedded into a non-ferrous rotational platform. Upon introduction of a magnetic field to a rotating platform, the magnetic arrest braking mechanism enables the user slow and stop the rotating platform without physical interference.

(17) In a separate embodiment of the apparatus, comprising further of a rotational platform and electrically driven motor, the aforementioned motor acts as the braking mechanism, utilizing electrical current variations to provide axial resistance via driving motor.

(18) In another embodiment of the invention, the braking mechanism provides braking by method of applied friction. Such frictional braking may be applied to any moving part in the form of an axial brake to an axial shaft, single-sided friction to the rotational platform or preferably a caliper type pinching brake. In the one embodiment, the braking mechanism is comprised of a non-abrasive frictional brake applied to the rotational platform.

(19) The problem surrounding the waste and loss of filler material when using a centripetally or vibration driven filling apparatus is solved by an embodiment of the invention comprising a planar rotational platform and a perimeter boundary 4 with integrated recesses 6 capable of holding pre-formed cigarette wrappers and a containment mechanism 3 (catch basin) to capture any filler material lost and otherwise potentially ejected from the apparatus during the filling process.

(20) It will be appreciated by one skilled in the art that containment mechanisms or methods exist in passive or active strategies. As such a passive strategy typically provides a static boundary comprising typically of a rigid or semi-rigid material to provide a physical barrier. Similarly, it will be appreciated by one skilled in the art that active containment provides dynamic boundaries dictated by influences such as air pressure differentials, magnetic fields, electrostatic boundaries or moving bodies.

(21) In one embodiment, the containment feature 2, passive in use, is comprised of a containment feature integrated into the rotational platform so as to rotate with said platform. This containment feature 2 provides a functional barrier for filler material that captures errant particles, which may traverse thru the recesses 6 when empty or pass through the preformed cigarette wrappers. This containment feature 2 (a peripheral wall) is typically at least as tall as the perimeter boundary and is placed between said perimeter boundary and the outer perimeter of the rotational platform forming the catch basin 3. FIG. 4 shows the dispersing area 400. FIG. 2B shows an axle mount hole 7.

(22) In alternate embodiments, the containment feature may exhibit a top cap extending back toward the central axis of the rotational platform. This top cap provides not only more particle retention, but also enables the constraint of an additional filler material retention cap to extending from the containment feature and the perimeter boundary.

(23) In the preferred embodiment, the containment feature stands at the circumference of the rotational platform at least as tall as the perimeter boundary to enable the capture of particles that would otherwise be ejected and wasted.

(24) In other embodiments the passive containment mechanism provides a centralized point, which all the captured errant particles of filler material are congregated for convenient removal and reintroduction into the filling process.

(25) In an alternative embodiment of the apparatus, a containment mechanism, active in use, is comprised of a method using an air-pressure differential to provide a vacuum to a boundary perimeter outside the rotational platform bounds to capture the errant filler particles and optionally collects said errant particles in one central location for easy removal and reuse in the filling process.

(26) The preferred embodiment of the invention comprises a planar rotational platform with recesses 6, an electrically actuated motor, a containment feature 2 and braking mechanism. The planar rotational platform, substantially circular and constructed of plastic of at least 0.25 in thickness, exhibits a substantially flat form. On this platform, an integrated perimeter boundary sits raised from the platform bed with a plurality of equally spaced rectangular recesses with minimized wall space normal to a radial line to minimize ineffective area. Furthermore, these rectangular recesses 10 transition to a conical or cylindrical form to enable the uniform constraint of inserted pre-rolled cigarette wrappers. The electrically actuated motor is coupled to the rotational platform to provide rotational motion to the rotational platform. Furthermore the containment feature is constructed of a clear plastic and is affixed to the apparatus on the outer circumference of the rotational platform. Still within the preferred embodiment, the braking mechanism has a frictional brake acting upon the underside of the rotational platform near the circumference to enable a controlled and safe arrest of the rotational platform. In use, the user inserts the desired number of pre-rolled cigarette wrappers into the recesses which are sized such that they sit flush of the interior face on the perimeter boundary and protrude out of the exterior face of the perimeter boundary when inserted. If all the recesses are not utilized, it is preferred that the user spaces the wrappers equally to ensure a balanced operation of the rotational platform. The user then prepares the appropriate amount of filler material for desired particulate size and amount based upon factors such as filler material, preferred fill-density and preferred burn-rate. When prepared, the user places the containment mechanism over the rotational platform and actuates the electrical motor to drive the rotational platform to a predetermined rotational speed. At this point, through the aperture in the containment mechanism the user gradually deposits the prepared filler material and allows the apparatus to spin until the desired fill is achieved. When the desired fill is achieved, the user applies the brake mechanism to slow the rotational platform to a complete stop at which point the user can remove the containment mechanism and remove the filled wrappers.

(27) In the foregoing specification, specific embodiments have been described. However, one of ordinary skill in the art appreciates that various modifications and changes can be made without departing from the scope of the invention as set forth in the claims below. Accordingly, the specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the scope of present teachings. The descriptive labels associated with the numerical references in the figures are intended to merely illustrate embodiments of the invention, and are in no way intended to limit the invention to the scope of the descriptive labels.

(28) The benefits, advantages, solutions to problems, and any element(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential features or elements of any or all the claims. The invention is defined solely by the appended claims including any amendments made during the pendency of this application and all equivalents of those claims as issued.

(29) Moreover in this document, relational terms such as first and second, top and bottom, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The terms comprises, comprising, has, having, includes, including, contains, containing, or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises, has, includes, contains a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by comprises . . . a, has . . . a, includes . . . a, contains . . . a does not, without more constraints, preclude the existence of additional identical elements in the process, method, article, or apparatus that comprises, has, includes, contains the element. The terms a and an are defined as one or more unless explicitly stated otherwise herein. The terms substantially, essentially, approximately, about, or any other version thereof, are defined as being close to as understood by one of ordinary skill in the art, and in one non-limiting embodiment the term is defined to be within 10%, in another embodiment within 5%, in another embodiment within 1% and in another embodiment within 0.5%. The terms coupled and linked as used herein is defined as connected, although not necessarily directly and not necessarily mechanically. A device or structure that is configured in a certain way is configured in at least that way, but may also be configured in ways that are not listed. Also, the sequence of steps in a flow diagram or elements in the claims, even when preceded by a letter does not imply or require that sequence.

(30) Referring next to FIGS. 4, 5, 6, 7 a circular platform 50 may be housed in a frame 78 which secures an axle 77 to the circular platform 50. A motor M has a drive pulley (not shown) that drives a belt 75 and pulley 76. A lid detector 79 shuts off the motor M if the lid 41 is not mounted on the circular platform 50.

(31) A wrapper housing 71 can have nominally 88 entry ports 10. The exit port is labeled 11. A crutch (closed end) 66 of wrapper 60 extends out the exit port 11 during the load (spinning) cycle so as to allow the user to push the wrapper 60 out the entry port 10 to harvest the filled wrappers. Nominal dimensions are d1=24, d2=3, entry port when it becomes conical is 10=; the square entry port is slightly larger 11= 3/16 diameter.

(32) In operation the user puts the lid 41 on the platform 50 and starts motor M. If each cigarette uses one gram, the user pours 88 grams (labeled 43) (for a fully loaded wrapper housing 70) into the fill hole 42 of lid 41. The dispersing area 400 catches work material now labeled 44 which has filled wrappers 45, and partially filled wrappers 46, 47 with platform 50 rotating counter-clockwise as shown by arrow CC. The system in FIG. 4 is labeled 40. The system in FIG. 7 is labeled 70. The wrapper 60 has a standard closed end 66 called a crutch. The open (fill) end is labeled 61. The dimension d3 is about 5/16.