Patent US4919374A successfully refreshed from Google Patents.
US4919374A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic liner securing apparatus
Assignee: J MARK Ind
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Filing: 1988-03-07
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Granted: 1990-04-24
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Expires: 2008-03-07
Abstract
Abstract A process and a device for holding a flexible plastic liner within a rigid or semi-rigid waste or storage container. The device or apparatus includes a split or divided shaft 30 which is attached to a ratchet wheel 104, which is controlled by a worm gear 102. Worm gear 102 is capable of moving the ratchet wheel both forwards and backwards and holding the wheel stationary. The worm gear is attached to or is a formed part of the shaft 111 which is further attached to a key or handle 100, that when rotated, turns the shaft 111, the ratchet wheel 104, and the split or divided shaft 30. The worm gear 102, the shaft 111, and the ratchet wheel 104 are housed in a split housing with top part 98 and bottom part 99. The housing 98-99, contains an attachment strap holder 46 through which the attachment strap 44 passes, thereby, attaching the device to the attachment strap 44. The attachment strap 44 is further hooked over the top edge 110 of the container 108, thereby, attaching the device to the container. The process involves placing the flexible plastic liner 112 within the container 108, folding its top uppermost portion 114 over the container edge 110, inserting the folded over liner portion 114 into the split or divided shaft 30 and rotating shaft 30 until the liner portion 114 is securely tightened around the top portion of the container 108.
Inventors
- 👤 Marland R. Julian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:28
CPC Classifications
B; B65; B65F; B65F1/00; B65F1/04; B65F1/06; Y; Y10; Y10S; Y10S24/00; Y10S24/909; Y10T; Y10T24/00; Y10T24/14; Y10T24/1412; Y10T24/1416; Y10T24/21; Y10T24/2187
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
216 words
For rigid or semi-rigid waste or storage containers which utilize flexible plastic liners, a plastic liner securing apparatus or device for securing or attaching flexible plastic liners to and holding said liners within said containers by inserting the folded over or turned down portion of the liner top directly into the open split or divided accumulator and rotating the accumulator until the liner is tightened or stretched around the top uppermost portion of the container, said apparatus comprising: (a) a split or divided accumulator means having two or more elongated vertical portions being spaced apart and being joined together at their bases to form a common base or single base portion (b) a rotational transmission means which is capable of rotating the split or divided accumulator (c) a holding releasing means which is capable of holding the split or divided accumulator in a stationary position for indefinite periods and allowing the split or divided accumulator to be counter rotated (d) a housing means which supports the split or divided accumulator and houses, supports, or contains, the rotational transmission means, and the holding releasing means (e) said housing means is attached to or is an integral part of a mounting bracket means which is used to attach the apparatus or device to the waste or storage container.
Claim 2
Dependent Claim
216 words
For rigid or semi-rigid waste or storage containers which utilize flexible plastic liners, a plastic liner securing apparatus or device for securing or attaching flexible plastic liners to and holding said liners within said containers by inserting the folded over or turned down portion of the liner top directly into the open split or divided accumulator and rotating the accumulator until the liner is tightened or stretched around the top uppermost portion of the container, said apparatus comprising: (a) a split or divided accumulator means having two or more elongated vertical portions being spaced apart and being joined together at their bases to form a common base or single base portion (b) a rotational transmission means which is capable of rotating the split or divided accumulator (c) a holding releasing means which is capable of holding the split or divided accumulator in a stationary position for indefinite periods and allowing the split or divided accumulator to be counter rotated (d) a housing means which supports the split or divided accumulator and houses, supports, or contains, the rotational transmission means, and the holding releasing means (e) said housing means is attached to or is an integral part of a mounting bracket means which is used to attach the apparatus or device to the waste or storage container.
Claim 3
Dependent Claim
49 words
The attachment of the mounting bracket means in claim 1 to the waste or storage containers 1 wherein adhesive strips are attached to the mounting bracket means and covered by protective peelable strips which are removed prior to attaching the mounting bracket means to the waste or storage container.
Claim 4
Dependent Claim
53 words
The attachment of the mounting bracket means in claim 1 to the waste or storage containers in wherein one or more u shaped straps which have one end of the u shaped portion attached to the apparatus and the other end hooked over the edge or rim of the waste or storage containers.
Claim 5
Dependent Claim
60 words
The attachment of the mounting bracket means in claim 1 to the waste or storage containers wherein one or more necessary holes in the mounting bracket means aline with like necessary holes in the waste or storage container and through which bolts or plastic fastners may be inserted thereby attaching the mounting bracket means to the waste or storage container.
Claim 6
Dependent Claim
33 words
The attachment of the mounting bracket means in claim 1 to the waste or storage container wherein the mounting bracket means is manufactured as an integral part of the waste or storage container.
Claim 7
Dependent Claim
43 words
The attachment of the mounting bracket means in claim 1 to the waste or storage container wherein a necessary hole or cavity in the mounting bracket means fits over a protruding part manufactured into the outside surface of the waste or storage container.
Claim 8
Dependent Claim
36 words
The attachment of the mounting bracket means in claim 1 wherein a u shaped hanger has ends extending through the mounting bracket means and the u shaped portion hooked over the waste or storage container edge.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-04-23 | 1993-10-23 | 1994-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-23 | 1997-10-23 | 1998-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-23 | 2001-10-23 | 2002-04-24 | $7700.00 | Window Closed / Lapsed |