US5165641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large contact area braces for a ladder
Assignee: WIP TECHNOLOGIES Inc
•
Filing: 1990-04-17
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Granted: 1992-11-24
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Expires: 2010-04-17
Abstract
Abstract Large contact areas braces for attachment to the siderails of a ladder maintain the top end of the ladder away from the work surface against which the siderails would ordinarily rest. Each brace provides a large surface area to contact the work surface to prevent defacing of the work surface by the side rails of the ladder. The large contact areas of the braces grip the work surface to prevent the ladder from slipping or sliding. The braces have contact pads that pivot horizontally so that the ladder can straddle corners.
Inventors
- 👤 Don L. Southern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:32
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/48
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
179 words
A brace for a ladder having first and second siderails connected by a rung, comprising: an extension arm having a flange formed on one end portion at a right angle to said arm and an opening in the distal end portion, said flange having first and second openings, said arm has a middle portion with a slot intermediate said end portions; a U-bolt having legs inserted through said first and second openings of said flange and having said legs having threaded ends and being spaced to receive said ladder rung therebetween; first and second nuts threadably mateable with said legs of said U-bolt to secure said flange to said U-bolt; an L-shaped clamp having an opening, said clamp being positioned in abutting contact with said arm with said clamp opening and said arm slot aligned to receive a fastening bolt, and being positioned in abutting contact with one of said first and second siderails; a resilient pad assembly; and means for pivotally connecting said resilient pad assembly about said opening in said distal end portion of said extension arm.
Claim 2
Dependent Claim
179 words
A brace for a ladder having first and second siderails connected by a rung, comprising: an extension arm having a flange formed on one end portion at a right angle to said arm and an opening in the distal end portion, said flange having first and second openings, said arm has a middle portion with a slot intermediate said end portions; a U-bolt having legs inserted through said first and second openings of said flange and having said legs having threaded ends and being spaced to receive said ladder rung therebetween; first and second nuts threadably mateable with said legs of said U-bolt to secure said flange to said U-bolt; an L-shaped clamp having an opening, said clamp being positioned in abutting contact with said arm with said clamp opening and said arm slot aligned to receive a fastening bolt, and being positioned in abutting contact with one of said first and second siderails; a resilient pad assembly; and means for pivotally connecting said resilient pad assembly about said opening in said distal end portion of said extension arm.
Claim 3
Dependent Claim
23 words
A brace, as set forth in claim 1, wherein said clamp acts in concert with said slot to accommodate different sizes of siderails.
Claim 4
Dependent Claim
14 words
A brace, as set forth in claim 1, wherein said pad assembly pivots horizontally.
Claim 5
Dependent Claim
14 words
A brace, as set forth in claim 1, wherein said pad assembly pivots vertically.
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) | 1995-11-24 | 1996-05-25 | 1996-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-24 | 2000-05-25 | 2000-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-11-24 | 2004-05-25 | 2004-11-24 | $7700.00 | Window Closed / Lapsed |