US4580372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightweight tarpaulin
Assignee: Mobil Oil AS
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Filing: 1984-08-14
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Granted: 1986-04-08
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Expires: 2004-08-14
Abstract
Abstract A tarpaulin incorporating a novel grommet and weighting structure which will enable the tarpaulin to be readily utilized as an outdoor cover, drop cloth, lawn cleanup sheet and numerous other applications even under relatively adverse environmental conditions. The tarpaulin is preferably constituted of a fiber-reinforced thermoplastic film material, which incorporates corner or edge grommet structure and weighted components detachably fastenable to the structure so as to ensure that the tarpaulins will not be displaced or carried off in response to extraneous forces caused by the elements, while concurrently allowing for the easy handling thereof during use, particularly when employed for outdoor purposes, such as the accumulation and removal of lawn trash constituted of leaves, grass or shrubbery cuttings and the like. The grommets include circular central openings or eyelets adapted to each threadingly receive a component in the form of a sealable container which may be filled with a suitable weighting material, such as sand or water, and wherein each container is preferably imparted the configuration of a handle-like member to facilitate the handling and movement of the tarpaulin by one or more users, while enabling the tarpaulin to resist inadvertent displacement of extraneous forces due to the elements.
Inventors
- 👤 Paul V. Osborn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:47
CPC Classifications
A; A47; A47G; A47G21/00; A47G21/16; A47G21/167; A01; A01G; A01G20/00; A01G20/40; A01G20/43; B; B60; B60R; B60R9/00; B60R9/04; B60R9/048; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1397; Y10T428/24; Y10T428/24273; Y10T428/24777
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
183 words
A lightweight tarpaulin and weighting structure for superposition over an object or on a surface area, comprising, in combination; (a) a tarpaulin body portion constituted of a flexible sheet material, said sheet material having a plurality of apertures formed therein and spaced along the periphery of said body portion; (b) a plurality of disc-shaped grommets, each said grommet having a circular central opening therein and being adhesively fastened to said flexible sheet material such that the circular opening of the grommet is in alignment with respectively one of said apertures in said sheet material; (c) said weighting structure for said tarpaulin comprising a plurality of hollow container means fillable with a weighting material each being detachably fastened to respectively one of said grommets, each said container means including a cylindrical externally-threaded neck portion having an open end forming a filling spout, said externally-threaded neck poriton being adapted to threadingly engage the inner circumference of the grommet aperture associated therewith; and closure cap means having an internal thread for sealingly engaging the threaded neck portion of said container means extending through said grommet aperture.
Claim 2
Dependent Claim
183 words
A lightweight tarpaulin and weighting structure for superposition over an object or on a surface area, comprising, in combination; (a) a tarpaulin body portion constituted of a flexible sheet material, said sheet material having a plurality of apertures formed therein and spaced along the periphery of said body portion; (b) a plurality of disc-shaped grommets, each said grommet having a circular central opening therein and being adhesively fastened to said flexible sheet material such that the circular opening of the grommet is in alignment with respectively one of said apertures in said sheet material; (c) said weighting structure for said tarpaulin comprising a plurality of hollow container means fillable with a weighting material each being detachably fastened to respectively one of said grommets, each said container means including a cylindrical externally-threaded neck portion having an open end forming a filling spout, said externally-threaded neck poriton being adapted to threadingly engage the inner circumference of the grommet aperture associated therewith; and closure cap means having an internal thread for sealingly engaging the threaded neck portion of said container means extending through said grommet aperture.
Claim 3
Dependent Claim
42 words
The combination as claimed in claim 1, wherein the threaded engagement between said container means neck portion and said grommet and between said neck portion and said closure cap means forms a fastening for said container means to said tarpaulin body portion.
Claim 4
Dependent Claim
26 words
The combination as claimed in claim 1, wherein each said container means is filled with a weighting material for securing said tarpaulin against extraneous disarranging forces.
Claim 5
Dependent Claim
13 words
The combination as claimed in claim 3, wherein said weighting material comprises sand.
Claim 6
Dependent Claim
13 words
The combination as claimed in claim 3, wherein said weighting material comprises water.
Claim 7
Dependent Claim
44 words
The combination as claimed in claim 3, comprising gasket means in said closure cap sealingly contacting the end of said container means neck portion upon said closure cap being threaded thereon so as to prevent leakage of said weighting material from said container means.
Claim 8
Dependent Claim
19 words
The combination as claimed in claim 1, wherein said container means is constituted of a substantially rigid thermoplastic material.
Claim 9
Dependent Claim
33 words
The combination as claimed in claim 7, wherein said container means is constituted of blow-molded high-density polyethylene having a single interior cavity communicating with the filling spout opening of the neck portion thereof.
Claim 10
Dependent Claim
44 words
The combination as claimed in claim 8, wherein said container means has a generally wedge-shaped configuration, said neck portion extending from one side wall of said wedge shape, and handgrip means being molded into said wedge shape extending in parallel with an edge thereof.
Claim 11
Dependent Claim
17 words
The combination as claimed in claim 1, wherein said closure cap is formed of molded high-density polyethylene.
Claim 12
Dependent Claim
17 words
The combination as claimed in claim 1, wherein said grommets are each formed of rigid high-density polyethylene.
Claim 13
Dependent Claim
17 words
The combination as claimed in claim 1, wherein said flexible sheet material is a fiber-reinforced polyethylene film.
Claim 14
Dependent Claim
44 words
The combination as claimed in claim 1, wherein said tarpaulin body portion is substantially rectangular, said grommets being arranged proximate each of the corners of said body portion, and each said container means is oriented so as to project outwardly of said body portion.
Claim 15
Dependent Claim
33 words
The combination as claimed in claim 1, wherein said tarpaulin body portion is substantially circular, and each said container means is oriented to project radially outwardly of the edge of said body portion.
Claim 16
Dependent Claim
25 words
The combination as claimed in claim 1, wherein said grommets are adhesively fastened to said tarpaulin body portion by being heat-sealed to the surface thereof.
References Cited (Backward Citations)
US1871571A
Cited
US2821764A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-04-07 | 1989-10-07 | 1990-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-04-07 | 1993-10-07 | 1994-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-04-07 | 1997-10-07 | 1998-04-08 | $7700.00 | Window Closed / Lapsed |