US4025016A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder attachments
Assignee: Individual
•
Filing: 1976-02-04
•
Granted: 1977-05-24
•
Expires: 1996-02-04
Abstract
Abstract Ladder attachments including holding assemblies designed to be fastened in various orientations on several different types of ladders. The attachments require no modification of the ladders. Each attachment comprises a clamp block having an alignment portion including an alignment surface for aligning the block against a ladder leg, a clamping portion and a web portion which joins the clamping and alignment portions. A second clamp portion is attached to the block by a bolt. The clamp block and second clamp portion are disposed on the bolt intermediate its ends and are adjustable relative to one another to clamp a ladder leg. The holding member is attached to one of the bolt ends and is proportioned and designed to hold an article outwardly from the ladder leg. In one embodiment, the holding member and second clamp portion are combined to create an easel tool which, when used in pairs, converts a ladder into an easel. The holding member may also be a pot hook which receives the bail of a paint pail to hold the pail outwardly from the side of a ladder leg.
Inventors
- 👤 Alvin O. Brothers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:54
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
300 words
A ladder attachment comprising a clamp block having an alignment portion and a first clamping portion, said alignment portion and first clamping portion each having proximal and distal ends, said proximal end of said alignment portion providing an alignment surface for aligning said clamp block against a surface of said ladder, said proximal end of said first clamping portion providing a first clamping surface extending generally perpendicularly of said alignment surface, said block having a web portion joining said distal ends of said alignment and clamping portions to define a notch bound by said web, said alignment portion and said first clamping portion, a second clamp portion, threaded means for drawing said first clamping portion and second clamp portion into clamping engagement with a leg of said ladder, said threaded means having first and second ends, and a member for holding an article to be supported by said ladder, said holding member being supported by said attachment adjacent the first end of said threaded means and said clamp block being located intermediate the first and second ends of said threaded means, said second clamp portion comprising a bracket including a back portion having two opposite ends, and one side portion extending generally perpendicularly to said back portion from one of said ends toward said clamp block, said threaded means including means for retaining said back portion off-center on said threaded means so that said side portion may be used to clamp said ladder attachment securely to a ladder leg having a flange along an edge thereof, and means for gripping a ladder leg having a generally rectangular transverse cross section, said gripping means protruding from said back portion proximate the remaining one of said ends thereof, said second clamp portion being located between said clamp block and said holding member.
Claim 2
Dependent Claim
300 words
A ladder attachment comprising a clamp block having an alignment portion and a first clamping portion, said alignment portion and first clamping portion each having proximal and distal ends, said proximal end of said alignment portion providing an alignment surface for aligning said clamp block against a surface of said ladder, said proximal end of said first clamping portion providing a first clamping surface extending generally perpendicularly of said alignment surface, said block having a web portion joining said distal ends of said alignment and clamping portions to define a notch bound by said web, said alignment portion and said first clamping portion, a second clamp portion, threaded means for drawing said first clamping portion and second clamp portion into clamping engagement with a leg of said ladder, said threaded means having first and second ends, and a member for holding an article to be supported by said ladder, said holding member being supported by said attachment adjacent the first end of said threaded means and said clamp block being located intermediate the first and second ends of said threaded means, said second clamp portion comprising a bracket including a back portion having two opposite ends, and one side portion extending generally perpendicularly to said back portion from one of said ends toward said clamp block, said threaded means including means for retaining said back portion off-center on said threaded means so that said side portion may be used to clamp said ladder attachment securely to a ladder leg having a flange along an edge thereof, and means for gripping a ladder leg having a generally rectangular transverse cross section, said gripping means protruding from said back portion proximate the remaining one of said ends thereof, said second clamp portion being located between said clamp block and said holding member.
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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) | 1980-05-23 | 1980-11-22 | 1981-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-23 | 1984-11-22 | 1985-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-23 | 1988-11-22 | 1989-05-24 | $7700.00 | Window Closed / Lapsed |