Patent US1521530A successfully refreshed from Google Patents.
Patent US4121692A successfully refreshed from Google Patents.
US4121692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder tray
Assignee: Individual
•
Filing: 1977-04-04
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Granted: 1978-10-24
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Expires: 1997-04-04
Abstract
Abstract A ladder support for the upper end of a ladder which incorporates a supporting frame member having three sides, and two free ends, the two free ends being attachable to a portion of the ladder, a tray within the frame member, and having through bolt means at the free ends of the frame member for passing completely through a rung of the ladder whereby the two free ends of the supporting frame may be securely bolted to the ladder while permitting a floating action. Supporting leg means extends from the frame at an angle to connect with another portion of the ladder. The invention provides, by use of the through bolt fastening, a degree of flexibility in the attachment of the frame and tray to the ladder which permits a desirable floating action so that the frame may conform to, for example, an irregular or angled surface while providing secure support for the top of the ladder.
Inventors
- 👤 Janus Morawski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:16
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/48; E06C7/16
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
211 words
A ladder support of the type adapted to be attached to the upper end of a ladder having hollow tubular rungs to hold the same away from a wall or the like and comprising; an integral one-piece supporting frame having a central cross-member and two side members formed integrally from a single length of material, with the side members making acute angles relative to the cross member and converging towards one another from their junction with said cross member; two free ends on said side members angled relative thereto whereby to lie parallel and spaced apart from one another whereby to receive the upper end of a ladder therebetween and having holes therethrough; tray means fastened between said cross-member and said side members and supporting the same; through bolt fastening means at said free ends of said frame for passing completely through said holes and through a said hollow rung and securely fastening said free ends of said frame on either side of said ladder said bolt fastening means being undersize relative to said rung thereby permitting a floating action between the ladder support, and ladder, in use, and, bracing means attached to said frame adapted for connection with said ladder to brace said supporting frame while permitting said floating action.
Claim 2
Dependent Claim
211 words
A ladder support of the type adapted to be attached to the upper end of a ladder having hollow tubular rungs to hold the same away from a wall or the like and comprising; an integral one-piece supporting frame having a central cross-member and two side members formed integrally from a single length of material, with the side members making acute angles relative to the cross member and converging towards one another from their junction with said cross member; two free ends on said side members angled relative thereto whereby to lie parallel and spaced apart from one another whereby to receive the upper end of a ladder therebetween and having holes therethrough; tray means fastened between said cross-member and said side members and supporting the same; through bolt fastening means at said free ends of said frame for passing completely through said holes and through a said hollow rung and securely fastening said free ends of said frame on either side of said ladder said bolt fastening means being undersize relative to said rung thereby permitting a floating action between the ladder support, and ladder, in use, and, bracing means attached to said frame adapted for connection with said ladder to brace said supporting frame while permitting said floating action.
Claim 3
Dependent Claim
78 words
A ladder support as claimed in claim 1 wherein said bracing means comprise a pair of leg members attached on opposite side of said supporting frame, and defining two free ends spaced apart from one another, and including through bolt fastening means extending between said free ends of said leg members, for fastening said free ends of said leg means to said ladder at a point spaced below the attachment of said free ends of said supporting frame.
Claim 4
Dependent Claim
147 words
A ladder support for use in association with a step-ladder having a top step and comprising; an integral one piece supporting frame having a central cross member and two side members formed integrally from a single length of material, with the side members angled relative to the cross member; a generally rectangular attachment plate member releasably attachable to said top step of said step ladder, and defining two free ends; a pair of channel members fastened on said two side members, in face to face relation with one another, and dimensioned to make a sliding fit on said free ends of said attachment plate members; tray means fastened between said cross-member and said side members and supporting the same; through bolt fastening means at said free ends of said side members, located and oriented so as to be fastened between said free ends around said attachment plate.
Claim 5
Dependent Claim
147 words
A ladder support for use in association with a step-ladder having a top step and comprising; an integral one piece supporting frame having a central cross member and two side members formed integrally from a single length of material, with the side members angled relative to the cross member; a generally rectangular attachment plate member releasably attachable to said top step of said step ladder, and defining two free ends; a pair of channel members fastened on said two side members, in face to face relation with one another, and dimensioned to make a sliding fit on said free ends of said attachment plate members; tray means fastened between said cross-member and said side members and supporting the same; through bolt fastening means at said free ends of said side members, located and oriented so as to be fastened between said free ends around said attachment plate.
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) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |