Claims
- 1. A dispenser for dispensing and separating a plastic bag from a roll of plastic bags which includes separation lines between adjacent bags and an elongated slot in the separation line, the bags being wound on an axle which extends a predetermined distance beyond the lateral edges of the roll, comprisinga pair of spaced apart, shaped tracks for receiving the opposite ends of said axle, the axle being rotatable within said tracks as the plastic bags are dispensed, the tracks being positioned so that the axle can fall within the tracks under the influence of gravity, a back wall having a surface which contacts the outer surface of the roll preventing the roll from falling within the tracks and applying a braking force to the roll when the bags are to be separated, and a tongue for engaging said slots to enable the bags to be separated, wherein said tracks are shaped so that a frictional component of force exerted by said roll against said back wall surface due to the weight of the roll relative to a component of force transverse to said frictional component is greater when the roll is at least partially depleted and the roll is supported in the lower portion of the tracks than when the roll is supported in the upper portion of the tracks.
- 2. A dispenser according to claim 1, wherein the upper portions of both tracks include openings so that the roll and axle can be inserted into the tracks as a single unit.
- 3. A dispenser according to claim 2, wherein said surface is slanted with respect to vertical when the dispenser is in use to increase said frictional component of force.
- 4. A dispenser according to claim 1, wherein said tracks are curved.
Parent Case Info
This is a continuation of U.S. patent application Ser. No. 08/215,197 filed Mar. 21, 1994, now U.S. Pat. No. 5,558,262, which is a continuation-in-part of U.S. patent application Ser. No. 08/124,952, filed Sep. 21, 1993, entitled “Plastic Bag Dispenser,” now U.S. Pat. No. 5,433,363, which is a continuation of U.S. patent application Ser. No. 07/821,192, filed Jan. 21, 1992, entitled “Plastic Bag Dispenser,” now U.S. Pat. No. 5,261,585, which is a continuation-in-part of U.S. patent application Ser. No. 07/764,137, filed Sep. 20, 1991, entitled “Roll of Plastic Bags for Use with Bag Dispensing Device,” now U.S. Pat. No. 5,219,424, and a continuation-in-part of U.S. patent application Ser. No. 07/652,031, filed Feb. 7, 1991, entitled “Plastic Bag Dispenser,” now U.S. Pat. No. 5,135,146, all in the name of Ebrahim Simhaee.
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CH |
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EP |
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FR |
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Continuations (2)
|
Number |
Date |
Country |
Parent |
08/215197 |
Mar 1994 |
US |
Child |
08/715990 |
|
US |
Parent |
07/821192 |
Jan 1992 |
US |
Child |
08/124952 |
|
US |
Continuation in Parts (3)
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Number |
Date |
Country |
Parent |
08/124952 |
Sep 1993 |
US |
Child |
08/215197 |
|
US |
Parent |
07/764137 |
Sep 1991 |
US |
Child |
07/821192 |
|
US |
Parent |
07/652031 |
Feb 1991 |
US |
Child |
07/764137 |
|
US |