US3792756A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety attachment for ladder
Assignee: Individual
•
Filing: 1973-04-25
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Granted: 1974-02-19
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Expires: 1993-04-25
Abstract
Abstract A conventional ladder means with the upper ends of the parallel side members terminating in a pair of right and left brackets, which brackets retain the end portions of an adjustable abrasive coated front belt for contact against the front side of a pole or tree with a second adjustable strap means pivotally secured to opposite brackets for snugly surrounding the rear portion of said pole or tree for preventing displacement of the ladder when in use.
Inventors
- 👤 H Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:41
CPC Classifications
E; E06; E06C; E06C7/00; E06C7/48
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
177 words
A safety attachment for a ladder having right and left parallel side members and equi-spaced rungs or steps therebetween comprising a right and left metal bracket member extending rearward from the upper end portion of each said right and left member, a front strap retainer extending from the rear end of each of said metal members with each having a pair of close parallel related vertical slots therein, a front strap of predetermined width and uniform thickness adjustably secured at each end thereof through each said pair of slots for forming against the front periphery of the pole against which the ladder is supported, a second rear strap having a buckle means therein for adjustment of the strap with the opposite outer ends of the strap pivotally secured to each said bracket member whereby the ladder is retained at a predetermined angle against a pole or tree when the said second strap is secured and made taut by said buckle means around the outer side of said pole or tree for stabilizing the ladder for manual use.
Claim 2
Dependent Claim
177 words
A safety attachment for a ladder having right and left parallel side members and equi-spaced rungs or steps therebetween comprising a right and left metal bracket member extending rearward from the upper end portion of each said right and left member, a front strap retainer extending from the rear end of each of said metal members with each having a pair of close parallel related vertical slots therein, a front strap of predetermined width and uniform thickness adjustably secured at each end thereof through each said pair of slots for forming against the front periphery of the pole against which the ladder is supported, a second rear strap having a buckle means therein for adjustment of the strap with the opposite outer ends of the strap pivotally secured to each said bracket member whereby the ladder is retained at a predetermined angle against a pole or tree when the said second strap is secured and made taut by said buckle means around the outer side of said pole or tree for stabilizing the ladder for manual use.
Claim 3
Dependent Claim
44 words
The construction recited in claim 1 including a first strap made from a fabric reinforced elastomer material with granular abrasives molded on the outer side thereof for producing high friction against the portion of a facing curved front side of said pole or tree.
Claim 4
Dependent Claim
37 words
The construction recited in claim 1 whereby each opposite end of said second strap is connected by an eye means therein engaged with a link means pivotally connected to each corresponding said left and right bracket member.
Claim 5
Dependent Claim
27 words
The construction recited in claim 1 wherein said second strap is made from high tensil fabric material and the buckle means is of the hinged friction type.
Claim 6
Dependent Claim
75 words
The construction recited in claim 1 wherein said second strap is replaced by a coiled tension spring of predetermined length and diameter and elasticity and covered by a rubber tubing and terminating at one end in an eye means secured by a link means to the left said bracket member and the opposite end thereof connected to a snap fastener for manual engagement with said link means pivotally secured to the right said bracket member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |