US3822813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Back pack frame for supporting a tent
Assignee: Individual
•
Filing: 1973-03-19
•
Granted: 1974-07-09
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Expires: 1993-03-19
Abstract
Abstract A back pack is convertible into a tent support frame and includes a pair of spaced parallel L-shaped frame members. A gripping structure including saw-toothed projections is supported between a first pair of legs of the frame members and serves, in conjunction with straps secured to the frame members, so secure the back frame to an upright support member, such as a tree. The second legs of the upright frame members are extendable by providing extension frame members pivoted to the second legs of the L-shaped frame members and additional frame members telescoped within the extension frame members. In this way, the back pack may be secured to an upright support, such as a tree, and the second legs of the extension frame members may be extended to form a tent support frame.
Inventors
- 👤 S Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:35
CPC Classifications
A; A45; A45F; A45F4/00; A45F4/02; A45F4/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
191 words
A back pack convertible into a tent support frame comprising: L-shaped frame means having first and second perpendicular legs, said second leg extending in a first direction from said first leg; strap means; gripping means extending from said first leg in a direction opposite to said first direction, whereby said frame means may be supported on an upstanding support member with said gripping means engaging one side of the support member and with said strap means connected to said frame means and extending around the other side of said support member to retain said frame means on said support member; wherein said L-shaped frame means comprises a pair of spaced Lshaped frame members, each having first and second legs corresponding to the first and second legs of said frame means; wherein said gripping means is supported by a bridging member extending between the first legs of said frame; wherein said gripping means comprises a pair of parallel plates extending perpendicularly from said bridging member, the distal edges of said plates having sawtooth projections; and means for extending said second leg to form a horizontal support frame for suspending a tent therefrom.
Claim 2
Dependent Claim
191 words
A back pack convertible into a tent support frame comprising: L-shaped frame means having first and second perpendicular legs, said second leg extending in a first direction from said first leg; strap means; gripping means extending from said first leg in a direction opposite to said first direction, whereby said frame means may be supported on an upstanding support member with said gripping means engaging one side of the support member and with said strap means connected to said frame means and extending around the other side of said support member to retain said frame means on said support member; wherein said L-shaped frame means comprises a pair of spaced Lshaped frame members, each having first and second legs corresponding to the first and second legs of said frame means; wherein said gripping means is supported by a bridging member extending between the first legs of said frame; wherein said gripping means comprises a pair of parallel plates extending perpendicularly from said bridging member, the distal edges of said plates having sawtooth projections; and means for extending said second leg to form a horizontal support frame for suspending a tent therefrom.
Claim 3
Dependent Claim
23 words
A back pack according to claim 1, wherein said gripping means comprises sawtooth projections which engage said one side of said support member.
Claim 4
Dependent Claim
14 words
A back pack according to claim 1, wherein said support member is a tree.
Claim 5
Dependent Claim
67 words
A back pack according to claim 1, wherein said means for extending said second leg of said frame means comprises extension frame members pivoted to said second legs of said L-shaped frame members near the free ends thereof, said extension members being pivoted from a first position adjacent said second legs to a second extended position increasing the length of said second leg of said frame means.
Claim 6
Dependent Claim
32 words
A back pack according to claim 4, further comprising means to retain said extension frame members in said first position and means for supporting said extension frame members in said extended position.
Claim 7
Dependent Claim
73 words
A back pack according to claim 5, wherein said means for supporting said extension frame member in said extended position comprises a stop member extending laterally from one of said extension frame members to overlie the adjacent second leg of one of said L-shaped frame members when said one extension frame member is in said first position and to abut a stop extension of said adjacent second leg when in said extended position.
Claim 8
Dependent Claim
57 words
A back pack as recited in claim 4, wherein said means for extending said second leg of said frame means further comprises a pair of additional frame members telescoped within said extension frame members and means for extending said additional frame members from said extension frame members when said extension frame members are in said extended position.
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) | 1977-07-08 | 1978-01-07 | 1978-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-08 | 1982-01-07 | 1982-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-08 | 1986-01-07 | 1986-07-09 | $7700.00 | Window Closed / Lapsed |