Patent US4250601A successfully refreshed from Google Patents.
US4250601A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic sheet support clip
Assignee: Individual
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Filing: 1979-07-05
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Granted: 1981-02-17
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Expires: 1999-07-05
Abstract
Abstract A plastic sheet support clip is provided for use in conjunction with a plastic sheet which performs the function of a protective seal to inhibit the passage of water into the cargo compartment of trucks having a door that is not adequate for water protection. This plastic sheet support clip is formed from a single thin piece of sheet metal. When the metal is stamped the invention is formed comprising a channel form retainer open at the top and a mounting flange having holes to assist in securing the invention to the side walls of the truck. The retainer has a bottom, a front wall and two side walls. A V-shaped notch is formed in the front wall and opening at the upper edge of the front wall. Lower portions of the notch are sharpened and act as a plastic sheet tearer or cutter.
Inventors
- 👤 Stanley R. Ward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:53
CPC Classifications
B; B60; B60J; B60J5/00; B60J5/10; B60J5/108; A; A47; A47K; A47K10/00; A47K10/12; A47K10/14; Y; Y10; Y10T; Y10T225/00; Y10T225/20; Y10T225/298; Y10T24/00; Y10T24/39; Y10T24/3916; Y10T24/3918; Y10T24/44; Y10T24/44983; Y10T83/00; Y10T83/929; Y10T83/9493; Y10T83/9495
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
122 words
A plastic sheet support clip comprising an open-topped, channel-form retainer and a mounting flange that is connected with said retainer in structurally rigid relationship, said channel-form retainer having a relatively thin front wall provided with a V-shaped notch opening at the top of the retainer for receiving a gathered-together marginal edge portion of a plastic sheet therein and initially retaining such plastic sheet in suspended relationship, said notch having the side edges thereof inwardly convergent toward the lower closed end to sufficiently decrease the spacing therebetween so as to enable the side edges to perform severing of a plastic sheet when such sheet is pulled toward the notch's vertex by a force substantially greater than the suspended weight of such plastic sheet.
Claim 2
Dependent Claim
122 words
A plastic sheet support clip comprising an open-topped, channel-form retainer and a mounting flange that is connected with said retainer in structurally rigid relationship, said channel-form retainer having a relatively thin front wall provided with a V-shaped notch opening at the top of the retainer for receiving a gathered-together marginal edge portion of a plastic sheet therein and initially retaining such plastic sheet in suspended relationship, said notch having the side edges thereof inwardly convergent toward the lower closed end to sufficiently decrease the spacing therebetween so as to enable the side edges to perform severing of a plastic sheet when such sheet is pulled toward the notch's vertex by a force substantially greater than the suspended weight of such plastic sheet.
Claim 3
Dependent Claim
50 words
A support clip according to claim 1 wherein said channel-form retainer is formed with vertically extending sidewalls at each side of said front wall and said mounting flange is formed with said side walls in spaced relationship to said front wall and projecting laterally outward with respect to said sidewalls.
Claim 4
Dependent Claim
16 words
A support clip according to claim 2 wherein said retainer is formed with a bottom wall.
Claim 5
Dependent Claim
22 words
A support clip according to claim 3 wherein said sidewalls and bottom wall are disposed in perpendicular relationship to said front wall.
Claim 6
Dependent Claim
26 words
A support clip according to claim 3 wherein said mounting flange includes a portion formed with said bottom wall and projecting laterally downward with respect thereto.
Claim 7
Dependent Claim
16 words
A support clip according to claim 1 wherein said retainer and mounting flange are integrally formed.
Claim 8
Dependent Claim
47 words
A support clip according to claim 1 wherein the portions of said notch side edges next adjacent the vertex thereof are relatively sharpened for a predetermined length to enhance the ability of said side edges to sever a plastic sheet pulled toward the vertex of the notch.
Claim 9
Dependent Claim
18 words
A support clip according to claim 1 wherein said V-shaped notch has side edges which are convexly curved.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-02-17 | 1984-08-18 | 1985-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-02-17 | 1988-08-18 | 1989-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-02-17 | 1992-08-18 | 1993-02-17 | $7700.00 | Window Closed / Lapsed |