Patent US3653507A successfully refreshed from Google Patents.
US4184569A
Expired / Lapsed
US
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Ladder standoff and ridge pole hook
Assignee: Individual
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Filing: 1977-11-04
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Granted: 1980-01-22
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Expires: 1997-11-04
Abstract
Abstract A simple device comprising members such as a pair of identical tubes or bars fastenable anywhere along the rails or stiles of a ladder by U-bolts passing through diametric bores is provided. The U-bolts constitute a clamping means whereby standoff members can be made secure to respective sides of a ladder, such members extending forwardly to engage the wall or roof of a building or to hook over the apex of a sloped roof or ridge pole of a building where the ladder is used by a workman on the roof to facilitate his movement on a sloping roof. The ends of the tubular members are provided with abrasion protecting caps so that the ends of the tubes will not scuff or mar a surface against which they are raised.
Inventors
- 👤 Joseph N. O. Grenier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:00
CPC Classifications
E; E06; E06C; E06C1/00; E06C1/02; E06C1/34; E06C1/345; E06C7/00; E06C7/48; E06C7/488
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
108 words
A ladder standoff and ridge pole hook comprising in combination a pair of bars of predetermined length, said bars having spaced bores transversely therethrough; a clamp for each bar having a bridging means to straddle a respective rail of a ladder at one side of the rail and each bridging means having fastening means to pass through the spaced bores of a respective bar disposed on the opposite side of said rail to clamp said bar thereto, whereby a bar may be clamped to each rail of a ladder and extending outwardly of the plane thereof for engaging a support surface or to hook over a roof ridgepole.
Claim 2
Dependent Claim
108 words
A ladder standoff and ridge pole hook comprising in combination a pair of bars of predetermined length, said bars having spaced bores transversely therethrough; a clamp for each bar having a bridging means to straddle a respective rail of a ladder at one side of the rail and each bridging means having fastening means to pass through the spaced bores of a respective bar disposed on the opposite side of said rail to clamp said bar thereto, whereby a bar may be clamped to each rail of a ladder and extending outwardly of the plane thereof for engaging a support surface or to hook over a roof ridgepole.
Claim 3
Dependent Claim
43 words
A device as set forth in claim 1, wherein said bars comprise cylindrical tubes and said spaced bores are provided diametrically therethrough; and each of said bars having an abrasion preventing cap to prevent at the engaging end damage to a support surface.
Claim 4
Dependent Claim
41 words
A device as set forth in claim 1, wherein each said clamp comprises a U-bolt having a bridging member and integral legs extending therefrom protruding through respective of said spaced bores; and extremities of said legs threaded and securing nuts thereon.
Claim 5
Dependent Claim
50 words
A device as set forth in claim 1, wherein said bars comprise cylindrical tubes and said spaced bores are provided diametrically therethrough, each said clamp comprising a U-bolt having a straight bridging member and integral legs extending therefrom, the extremities of said legs being threaded and with securing nuts thereon.
Claim 6
Dependent Claim
42 words
A device as set forth in claim 1, including abrasion preventing caps at the extremities of said bars for non-abrasive engagement with a wall or roof and additional abrasion preventing caps on the opposite ends of respective bars to prevent personal injury.
Claim 7
Dependent Claim
46 words
A device as set forth in claim 1, wherein said bars comprise cylindrical tubes and said spaced bores are provided diametrically therethrough, including abrasion preventing caps at the extremities of said bars for engagement with a wall or roof and at opposite extremities to prevent injury.
Claim 8
Dependent Claim
57 words
A device as set forth in claim 1, wherein each said clamp comprises a U-bolt having a straight bridging member and integral legs extending therefrom through respective spaced bores, the extremities of said legs being threaded and securing nuts thereon, including abrasion preventing caps at the extremities of said bars for engagement with a wall or roof.
Claim 9
Dependent Claim
69 words
A device as set forth in claim 1, wherein said bars comprise cylindrical tubes and said spaced bores are provided diametrically therethrough; said clamp comprising a U-bolt having a straight bridging member and integral legs extending through each said spaced bores, the extremities of said legs being threaded and securing nuts thereon, including abrasion preventing caps at the extremities of said bars for engagement with a wall or roof.
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) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |