Patent DE2745461B1 successfully refreshed from Google Patents.
US3797718A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pack frame having pulley adjusting straps
Assignee: Individual
•
Filing: 1972-11-20
•
Granted: 1974-03-19
•
Expires: 1992-11-20
Abstract
Abstract This invention is concerned with a strap and pulley assembly mounted on a back pack frame. A back pack frame is a device that hikers employ to carry a load of supplies and/or equipment on their back. On the lower side of each of the frame members are mounted pulley assemblies. The straps that connect the frame to the person pass through the pulley assemblies and fasten to the front of the person''s body. With this invention, the weight on the pack is no longer carried solely on the back and shoulders, but the weight is more evenly distributed to other parts of the body. The pulleys have means for locating them in order to conform to the person''s configuration. There is a separate bracket for locking the pulley means into fixed positions.
Inventors
- 👤 R Plant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:21
CPC Classifications
A; A45; A45F; A45F3/00; A45F3/04; A45F3/08
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
An improved pack frame assembly to be carried on the back by persons, comprising of: two substantially parallel vertical members, a plurality of horizontal members interconnecting the vertical members at approximately the upper portion, middle portion and bottom portion thereof, a pulley assembly mounted on the outside of each vertical member above the bottom horizontal member, means for adjusting and locking the position of the pulley assembly, a strap assembly including a front belt, means for fastening said strap assembly to the upper horizontal member; said strap assembly adapted to pass over the shoulders of a person carrying the pack frame, underneath the person''s armpits, over and under the pulleys and interconnected at the waist in front of the said person carrying the frame.
Claim 2
Dependent Claim
124 words
An improved pack frame assembly to be carried on the back by persons, comprising of: two substantially parallel vertical members, a plurality of horizontal members interconnecting the vertical members at approximately the upper portion, middle portion and bottom portion thereof, a pulley assembly mounted on the outside of each vertical member above the bottom horizontal member, means for adjusting and locking the position of the pulley assembly, a strap assembly including a front belt, means for fastening said strap assembly to the upper horizontal member; said strap assembly adapted to pass over the shoulders of a person carrying the pack frame, underneath the person''s armpits, over and under the pulleys and interconnected at the waist in front of the said person carrying the frame.
Claim 3
Dependent Claim
73 words
An improved pack frame assembly as described in claim 1 wherein said belt assembly comprises on each side of said frame an upper padded portion, an intermediate strap portion, an adjustable buckle, said buckle connected to said intermediate strap portion and upper padded portion, a clamp means, said clamp means connected to said intermediate strap portion and front belt, and a buckle for connecting each side of the front belt at the waist.
Claim 4
Dependent Claim
70 words
An improved pack frame assembly as described in claim 1 wherein said pulley assembly comprises of a pulley bracket adapted to be movably mounted on said pack frame vertical member, said bracket having an adjustable bolt at the top and lower portions thereof for tightening the bracket to the said frame member, said bracket having a housing portion, an axle mounted within said housing, said pulley mounted on said axle.
Claim 5
Dependent Claim
70 words
An improved pack frame assembly as described in claim 2 wherein said pulley assembly comprises of a pulley bracket adapted to be movably mounted on said pack frame vertical member, said bracket having an adjustable bolt at the top and lower portions thereof for tightening the bracket to the said frame member, said bracket having a housing portion, an axle mounted within said housing, said pulley mounted on said axle.
Claim 6
Dependent Claim
77 words
An improved pack frame assembly as described in claim 1 wherein said means for locking the position of the pulley assembly comprises a U-shaped bracket fastened about said vertical frame member above the pulley assembly, teeth means on the bottom of said U-shaped bracket, teeth on the top of said pulley assembly designed to mesh with the teeth means on the U-shaped bracket, and a bolt assembly for securing the U-shaped bracket to the vertical frame member.
Claim 7
Dependent Claim
77 words
An improved pack frame assembly as described in claim 2 wherein said means for locking the position of the pulley assembly comprises a U-shaped bracket fastened about said vertical frame member above the pulley assembly, teeth means on the bottom of said U-shaped bracket, teeth on the top of said pulley assembly designed to mesh with the teeth means on the U-shaped bracket, and a bolt assembly for securing the U-shaped bracket to the vertical frame member.
Claim 8
Dependent Claim
77 words
An improved pack frame assembly as described in claim 3 wherEin said means for locking the position of the pulley assembly comprises a U-shaped bracket fastened about said vertical frame member above the pulley assembly, teeth means on the bottom of said U-shaped bracket, teeth on the top of said pulley assembly designed to mesh with the teeth means on the U-shaped bracket, and a bolt assembly for securing the U-shaped bracket to the vertical frame member.
Claim 9
Dependent Claim
77 words
An improved pack frame assembly as described in claim 4 wherein said means for locking the position of the pulley assembly comprises a U-shaped bracket fastened about said vertical frame member above the pulley assembly, teeth means on the bottom of said U-shaped bracket, teeth on the top of said pulley assembly designed to mesh with the teeth means on the U-shaped bracket, and a bolt assembly for securing the U-shaped bracket to the vertical frame 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) | 1977-03-18 | 1977-09-17 | 1978-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-18 | 1981-09-17 | 1982-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-18 | 1985-09-17 | 1986-03-19 | $7700.00 | Window Closed / Lapsed |