US5121814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable ladder stand-off brace for corner walls
Assignee: WIP TECHNOLOGIES Inc
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Filing: 1990-12-19
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Granted: 1992-06-16
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Expires: 2010-12-19
Abstract
Abstract A stand-off brace for attachment to the top end of a ladder maintains the top end of the ladder away from the work surface against which it would ordinarily rest. The brace has a general U-shape wherein the legs are reversible to vary the distance between the ladder and the work surface. The distance between the legs is also adjustable so that the brace spans the work surface. The legs are fitted with resilient ads for contacting the work surface without damage. Corner adapters are connected to the legs and the pads are pivotally attached to the adapters to maintain flush contact with the walls of a corner or a curved surface. The corner adapters have an angular offset to maintain flush contact with the ladder positioned at the recommended working angle.
Inventors
- 👤 Don L. Southern
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:02
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/48; E06C7/482; E06C7/484
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
210 words
An apparatus for a ladder having first and second siderails, comprising: a first member having a first end portion and a second end portion angularly extending from said first end portion, said first end portion being longer than said second end portion; a second member having a first end portion and a second end portion angularly extending from said first end portion, said first end portion being longer than said second end portion; a third member extending between said first and second members, said third member engaging one of said first or second end portions of said first member and engaging a corresponding one of said first or second end portions of said second member, said third member engaging said first and second members and being slidably moveable relative thereto to vary the distance between said first and second members; means for attaching said third member to said siderails; a first corner adapter releasably attached to the other of said first or second end portions of said first member; a second corner adapter releasably attached to the other of said first or second end portions of said second member; a first resilient pad pivotally connected said first comer adapter; and a second resilient pad pivotally connected said second corner adapter.
Claim 2
Independent Claim
210 words
An apparatus for a ladder having first and second siderails, comprising: a first member having a first end portion and a second end portion angularly extending from said first end portion, said first end portion being longer than said second end portion; a second member having a first end portion and a second end portion angularly extending from said first end portion, said first end portion being longer than said second end portion; a third member extending between said first and second members, said third member engaging one of said first or second end portions of said first member and engaging a corresponding one of said first or second end portions of said second member, said third member engaging said first and second members and being slidably moveable relative thereto to vary the distance between said first and second members; means for attaching said third member to said siderails; a first corner adapter releasably attached to the other of said first or second end portions of said first member; a second corner adapter releasably attached to the other of said first or second end portions of said second member; a first resilient pad pivotally connected said first comer adapter; and a second resilient pad pivotally connected said second corner adapter.
Claim 3
Dependent Claim
31 words
An apparatus, as set forth in claim 1, wherein said first corner adapter forms an end plug fitted in and attached to one of said end portions of said first member.
Claim 4
Dependent Claim
34 words
An apparatus, as set forth in claim 1, wherein said first corner adapter has a body attached to one of said end portions of said first member and a finger extending from said body.
Claim 5
Dependent Claim
20 words
An apparatus, as set forth in claim 3, wherein said finger angularly extends from said body towards said second member.
Claim 6
Dependent Claim
23 words
An apparatus, as set forth in claim 3, wherein said finger extends from said body at an angle of fourteen and one-half degrees.
Claim 7
Dependent Claim
48 words
An apparatus, as set forth in claim 3, wherein said first corner adapter has an an L-shaped configuration with said body forming a short base of the L and the finger forming a long leg, said leg and said base forming an angle of seventy-five and one-half degrees.
Claim 8
Dependent Claim
60 words
An apparatus, as set forth in claim 3, wherein said first corner adapter has an L-shaped configuration with said body forming a short base of the L having width and depth and the finger forming a long leg having width and depth, said depths being equal and said width of said leg being less than said width of said base.
Claim 9
Dependent Claim
16 words
An apparatus, as set forth in claim 3, wherein said finger has a chamfered end portion.
Claim 10
Dependent Claim
30 words
An apparatus, as set forth in claim 1, wherein said first corner adapter forms a cap fitted over and attached to one of said end portions of said first member.
Claim 11
Dependent Claim
114 words
A ladder, comprising: first and second siderails connected at spaced intervals by a plurality of rungs; an elongated bar having first and second end portions and a middle portion attached to said first and second siderails and extending between said end portions, said first and second end portions angularly extending from said middle portion; a first corner adapter releasably attached to one of said first or second end portions of said elongated bar; a second corner adapter releasably attached to the other of said first or second end portions of said elongated bar; a first resilient pad pivotally connected said first corner adapter; and a second resilient pad pivotally connected said second corner adapter.
Claim 12
Dependent Claim
114 words
A ladder, comprising: first and second siderails connected at spaced intervals by a plurality of rungs; an elongated bar having first and second end portions and a middle portion attached to said first and second siderails and extending between said end portions, said first and second end portions angularly extending from said middle portion; a first corner adapter releasably attached to one of said first or second end portions of said elongated bar; a second corner adapter releasably attached to the other of said first or second end portions of said elongated bar; a first resilient pad pivotally connected said first corner adapter; and a second resilient pad pivotally connected said second corner adapter.
Claim 13
Dependent Claim
31 words
A ladder, as set forth in claim 10, wherein said first corner adapter forms an end plug fitted in and attached to one of said end portions of said elongated bar.
Claim 14
Dependent Claim
34 words
A ladder, as set forth in claim 10, wherein said first corner adapter has a body attached to one of said end portions of said elongated bar and a finger extending from said body.
Claim 15
Dependent Claim
21 words
A ladder, as set forth in claim 12, wherein said finger angularly extends from said body towards said second end portion.
Claim 16
Dependent Claim
23 words
A ladder, as set forth in claim 12, wherein said finger extends from said body at an angle of fourteen and one-half degrees.
Claim 17
Dependent Claim
48 words
A ladder, as set forth in claim 12, wherein said first corner adapter has an an L-shaped configuration with said body forming a short base of the L and the finger forming a long leg, said leg and said base forming an angle of seventy-five and one-half degrees.
Claim 18
Dependent Claim
61 words
A ladder, as set forth in claim 12, wherein said first corner adapter has an an L-shaped configuration with said body forming a short base of the L having width and depth and the finger forming a long leg having width and depth, said depths being equal and said width of said leg being less than said width of said base.
Claim 19
Dependent Claim
30 words
A ladder, as set forth in claim 10, wherein said first corner adapter forms a cap fitted over and attached to one of said end portions of said elongated bar.
Claim 20
Dependent Claim
16 words
A ladder, as set forth in claim 10, wherein said finger has a chamfered end portion.
Claim 21
Dependent Claim
113 words
An attachment for a ladder, comprising: an elongated bar having first and second end portions and a middle portion extending between said end portions, said first and second end portions angularly extending from said middle portion; a first corner adapter releasably attached to one of said first or second end portions of said elongated bar; and a second corner adapter releasably attached to the other of said first or second end portions of said elongated bar, said second corner adapter having a body attached to said second end portion of said elongated bar and a finger extending from said body at an angle of fourteen and one-half degrees towards said first end portion.
Claim 22
Dependent Claim
113 words
An attachment for a ladder, comprising: an elongated bar having first and second end portions and a middle portion extending between said end portions, said first and second end portions angularly extending from said middle portion; a first corner adapter releasably attached to one of said first or second end portions of said elongated bar; and a second corner adapter releasably attached to the other of said first or second end portions of said elongated bar, said second corner adapter having a body attached to said second end portion of said elongated bar and a finger extending from said body at an angle of fourteen and one-half degrees towards said first end portion.
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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) | 1995-06-16 | 1995-12-16 | 1996-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-06-16 | 1999-12-16 | 2000-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-06-16 | 2003-12-16 | 2004-06-16 | $7700.00 | Window Closed / Lapsed |