US3765136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grids, gratings or like open work support surfaces or floors
Assignee: LIONWELD Ltd
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Filing: 1970-08-28
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Granted: 1973-10-16
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Expires: 1990-08-28
Abstract
Abstract The invention relates to improvements in or relating to grids, gratings or the like open work support surfaces or floors and has particular application to providing a non-slip or slip-resistant surface. The invention provides a slip-resistant member for attachment to a grating having load bearing means, where the slip-resistant member is constructed to permit attachment to or removal from the load bearing means of the grating.
Inventors
- 👤 D Mudd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:55
CPC Classifications
E; E04; E04F; E04F19/00; E04F19/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A load bearing grating including a plurality of flat strips arranged to stand on edge in spaced relation and a plurality of cross bars interconnecting said strips in combination with one or more elongated, slip-resisting, clip members of inverted U-shape transverse cross section detachably mounted on said flat strips, each of said clip members including a pair of downwardly extending sides for gripping opposite faces of said flat strips substantially below an upwardly facing edge thereof and a bight portion joining said sides and resting on an upper edge surface of said flat strip, and slip resistant, friction increasing means on the upwardly facing surface of said bight portion of said clip member for providing a slip resistant treat surface for said grating, said clip member including an inner layer of synthetic plastics material, an intermediate layer of woven fabric, an outer layer of abrasive material with adhesive between said layers for securing the layers into an integral detachable clip member.
Claim 2
Dependent Claim
161 words
A load bearing grating including a plurality of flat strips arranged to stand on edge in spaced relation and a plurality of cross bars interconnecting said strips in combination with one or more elongated, slip-resisting, clip members of inverted U-shape transverse cross section detachably mounted on said flat strips, each of said clip members including a pair of downwardly extending sides for gripping opposite faces of said flat strips substantially below an upwardly facing edge thereof and a bight portion joining said sides and resting on an upper edge surface of said flat strip, and slip resistant, friction increasing means on the upwardly facing surface of said bight portion of said clip member for providing a slip resistant treat surface for said grating, said clip member including an inner layer of synthetic plastics material, an intermediate layer of woven fabric, an outer layer of abrasive material with adhesive between said layers for securing the layers into an integral detachable clip member.
References Cited (Backward Citations)
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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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |