US3779497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tripod and support therefor
Assignee: Individual
•
Filing: 1971-10-15
•
Granted: 1973-12-18
•
Expires: 1991-10-15
Abstract
Abstract The legs of a tripod are clamped together by a device which comprises a first member having a generally triangular cavity with corner surfaces formed on a radius larger than the radius of the legs, and a second member of generally triangular shape having corner surfaces recessed on a radius smaller than the radius of the legs. The second member is assembled to the first member such that three-point line contact is made by the two members on each of the legs.
Inventors
- 👤 P Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:06
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/02; F16M11/16; F16M11/20; F16M11/22; F16M13/00; G; G03; G03B; G03B17/00; G03B17/56; G03B17/561
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
124 words
A device for clamping and holding in fixed relation three cylindrical legs to form a tripod, comprising a first member, said first member defining a generally triangular cavity, the three corners of said cavity having surfaces defined on a radius greater than the radius of the legs, a second member of generally triangular shape arranged to be received in the cavity, said second member having recesses defined in the corners thereof which define two edges subtending an arc on a smaller radius than the radius of the legs, and coupling means for drawing said second member within said cavity so that legs positioned within said corners are engaged by said edges on said second member and are urged against the walls of said corners.
Claim 2
Independent Claim
124 words
A device for clamping and holding in fixed relation three cylindrical legs to form a tripod, comprising a first member, said first member defining a generally triangular cavity, the three corners of said cavity having surfaces defined on a radius greater than the radius of the legs, a second member of generally triangular shape arranged to be received in the cavity, said second member having recesses defined in the corners thereof which define two edges subtending an arc on a smaller radius than the radius of the legs, and coupling means for drawing said second member within said cavity so that legs positioned within said corners are engaged by said edges on said second member and are urged against the walls of said corners.
Claim 3
Dependent Claim
33 words
The device of claim 1 wherein said coupling means comprises a threaded bolt extending through said first and second members and spring means disposed about said bolt between said first and second means.
Claim 4
Dependent Claim
36 words
The device of claim 1 further including resilient means arranged between said first and second members to be compressed and store energy therein when said first and second members are coupled to clamp the legs therein.
Claim 5
Dependent Claim
23 words
The device of claim 1 wherein said surfaces of said first member and said corresponding edges of said second member are essentially parallel.
Claim 6
Dependent Claim
35 words
The device of claim 4 wherein each pair of said edges and the corresponding corner surfaces define leg-receiving pockets, each of said pockets adapted to receive a leg at a predetermined angle to the vertical.
References Cited (Backward Citations)
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Cited
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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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |