US5609222A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ladder leveler
Assignee: Individual
•
Filing: 1995-05-26
•
Granted: 1997-03-11
•
Expires: 2015-05-26
Abstract
Abstract An improved ladder leveler which is made up of inner square bar and outer square tubes which slidably move axially in relation to each other vary the degree of extension. Locking the same by the insertion of a cotterless pin through aligning holes provided the inner bar and outer walls, the outer walls of said square tubes having ladder rung brackets which are spaced to accommodate ladder rungs; the leveler being fastened to the ladder and ladder rungs locked in place by the threaded engagement of a formed threaded pin which extends through the rung brackets and secured with a hair pin to engage a stile bracket which engages the ladders stile.
Inventors
- 👤 Theodore Horbacewicz
- 👤 Lawrence Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:52
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/42; E06C7/44
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
212 words
An improved ladder leveler comprising an outer square tube and inner square bar, said inner square bar being freely axially movable within said outer square tube, said inner square bar and outer square tube having perforations there through, said inner and outer perforations acting to align as said inner bar is axially moved through said outer tube, when said perforation align a cotterless pin is passed there-through thus establishing the extension of said inner bar; said outer tube having affixed thereon parallel upper and lower rung brackets, the distance between said upper and lower rung brackets being established to accommodate spacing between ladder rungs, said rung brackets having a semi-circular cross section and inner and outer side members connected to a semi-circular base, said ladder rungs supportable on said rung brackets semi-circular base said inner and outer side members of said rung brackets each having two aligned holes through which a formed threaded pin passes extendably over said ladder rung to lock the same in place in said rung brackets; said formed threaded pin subsequently passing through a stile bracket, said threaded formed pin with a lock washer, wing nut and hair pin lock for fastening said stile bracket to the said ladder stile and said ladder rung into said rung bracket.
Claim 2
Dependent Claim
212 words
An improved ladder leveler comprising an outer square tube and inner square bar, said inner square bar being freely axially movable within said outer square tube, said inner square bar and outer square tube having perforations there through, said inner and outer perforations acting to align as said inner bar is axially moved through said outer tube, when said perforation align a cotterless pin is passed there-through thus establishing the extension of said inner bar; said outer tube having affixed thereon parallel upper and lower rung brackets, the distance between said upper and lower rung brackets being established to accommodate spacing between ladder rungs, said rung brackets having a semi-circular cross section and inner and outer side members connected to a semi-circular base, said ladder rungs supportable on said rung brackets semi-circular base said inner and outer side members of said rung brackets each having two aligned holes through which a formed threaded pin passes extendably over said ladder rung to lock the same in place in said rung brackets; said formed threaded pin subsequently passing through a stile bracket, said threaded formed pin with a lock washer, wing nut and hair pin lock for fastening said stile bracket to the said ladder stile and said ladder rung into said rung bracket.
Claim 3
Dependent Claim
43 words
The ladder leveler according to claim 1, wherein said inner square bar has two ends, the first of two ends having a rotatable pad fastened thereon, the second of said two ends being formed into a point, said point engaging with penetrable terrain.
References Cited (Backward Citations)
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US3165170A
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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) | 2000-03-10 | 2000-09-09 | 2001-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-03-10 | 2004-09-09 | 2005-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-03-10 | 2008-09-09 | 2009-03-11 | $7700.00 | Window Closed / Lapsed |