US3860157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back pack and frame
Assignee: Individual
•
Filing: 1972-07-31
•
Granted: 1975-01-14
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Expires: 1992-07-31
Abstract
Abstract Back pack frame is made of sections of tubing and tees to form sides and transverse connectors of a lightweight frame to which a pack is attached and which may be strapped to the back. At least some of the joints of the tubing sections and tees are detachable so that the frame may be disassembled. The pack has a pocket which may be opened for storage of the frame parts. The pack may be used for attachment to the frame, or may be lifted by a permanent handle on one side like a suitcase, or may be slung over the shoulder using as a sling the hip surrounding belt of the frame.
Inventors
- 👤 Peter G Richards
- 👤 David R Mullen
- 👤 Douglas E Hall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:14
CPC Classifications
A; A45; A45F; A45F3/00; A45F3/04; A45F3/08; A45F3/12; A45F2003/122; A45F2003/125
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
216 words
A back pack frame comprising a first side and a second side each formed of a plurality of polyvinyl chloride tubular members and a plurality of polyvinyl chloride tee fittings receiving opposite ends of said tubular members, each said side having an upward and a downward extension fitting into the uppermost and lowermost of said tee fittings respectively, said extensions adapted to receive loops on the top and bottom of a pack supported by said frame to hold said pack and frame assembled, at least two transverse tubular members, each said transverse member having one of its ends received in an opening of a tee fitting of said first side and its opposite end received in an opening of a tee fitting of said second side, stretchable netting extending across said transverse members around said sides and cord through holes in margins of said netting drawing edges of said netting inward to draw said sides toward each other, said netting and friction of the ends of said transverse members in said tees being the sole means of holding said transverse members and said sides assembled, said tubular members being bent to fit the back of the wearer of said frame and being bendable when heated to adjust the fit of said members to the wearer''s back.
Claim 2
Dependent Claim
216 words
A back pack frame comprising a first side and a second side each formed of a plurality of polyvinyl chloride tubular members and a plurality of polyvinyl chloride tee fittings receiving opposite ends of said tubular members, each said side having an upward and a downward extension fitting into the uppermost and lowermost of said tee fittings respectively, said extensions adapted to receive loops on the top and bottom of a pack supported by said frame to hold said pack and frame assembled, at least two transverse tubular members, each said transverse member having one of its ends received in an opening of a tee fitting of said first side and its opposite end received in an opening of a tee fitting of said second side, stretchable netting extending across said transverse members around said sides and cord through holes in margins of said netting drawing edges of said netting inward to draw said sides toward each other, said netting and friction of the ends of said transverse members in said tees being the sole means of holding said transverse members and said sides assembled, said tubular members being bent to fit the back of the wearer of said frame and being bendable when heated to adjust the fit of said members to the wearer''s back.
Claim 3
Dependent Claim
50 words
A frame according to claim 1 which further comprises fittings for said cords each having a nipple and an enlarged ring, a loop of said cord extending throuGh said fitting and an end of said cord passing through said loop for convenient adjustment of the effective length of said cord.
Claim 4
Dependent Claim
64 words
A frame according to claim 1 which farther comprises fittings for said cords each having a thin body formed with three openings, one end of said cord fixed to one said opening, a loop of said cord adjacent the opposite end thereof passing through the second said opening, said opposite end passing through said loop and being detachably secured in the third said opening.
Claim 5
Dependent Claim
34 words
The frame of claim 1 in combination with a pack having a pocket wherein all the elements of said frame may be disassembled and fitted within said pocket and a closure for said pocket.
References Cited (Backward Citations)
US1613635A
Cited
US2229935A
Cited
US3397026A
Cited
US3563431A
Cited
US3648907A
Cited
US3620428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-13 | 1978-07-15 | 1979-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-13 | 1982-07-15 | 1983-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-13 | 1986-07-15 | 1987-01-14 | $7700.00 | Window Closed / Lapsed |