Patent US2898121A successfully refreshed from Google Patents.
Patent US4074881A successfully refreshed from Google Patents.
US4074881A
Expired / Lapsed
US
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Tripod assembly
Assignee: BIRDSELL GLEN
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Filing: 1976-06-23
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Granted: 1978-02-21
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Expires: 1996-06-23
Abstract
Abstract A tripod assembly for receiving and holding a standard carrying a load such as a chair, a camera, etc., having a bearing ring with a tapered inner diameter for receiving and carrying the load bearing standard; first, second, and third legs rotatably carried by downwardly extending hinge eyes from said bearing ring and terminating in one end in foot pads and in another end in hinge eyes for cooperation with the downwardly extending hinge eyes and a squared edge for communication with linear recesses in the bottom portion of said bearing ring.
Inventors
- 👤 Gardner Lloyd Bickford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:56
CPC Classifications
A; A47; A47C; A47C7/00; A47C7/002; A47C7/004; F; F16; F16M; F16M11/00; F16M11/20; F16M11/24; F16M11/38; F16M13/00; F16M2200/00; F16M2200/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A tripod assembly for receiving and carrying a load bearing standard, comprising a bearing ring having an inner diameter dimensioned for receiving a load bearing standard and being generally cylindrical in shape; hinge extensions extending downwardly and inwardly from said bearing ring, said hinge extensions including radially extending slots therethrough, each said slot including a substantially flat surfaced recess extending perpendicularly relative to said slot, each said flat surfaced recess extending as a cord across said generally cylindrical bearing ring and being outwardly of one of said slots; and three legs rotatably carried by said hinge extensions, each said leg including a vertically oriented portion extending into one of said slots and a horizontally oriented flat portion above said vertically oriented portion outwardly from said slot and dimensioned for abutment with one of said substantially flat surfaced recess when said leg is rotated in an extended position.
Claim 2
Dependent Claim
147 words
A tripod assembly for receiving and carrying a load bearing standard, comprising a bearing ring having an inner diameter dimensioned for receiving a load bearing standard and being generally cylindrical in shape; hinge extensions extending downwardly and inwardly from said bearing ring, said hinge extensions including radially extending slots therethrough, each said slot including a substantially flat surfaced recess extending perpendicularly relative to said slot, each said flat surfaced recess extending as a cord across said generally cylindrical bearing ring and being outwardly of one of said slots; and three legs rotatably carried by said hinge extensions, each said leg including a vertically oriented portion extending into one of said slots and a horizontally oriented flat portion above said vertically oriented portion outwardly from said slot and dimensioned for abutment with one of said substantially flat surfaced recess when said leg is rotated in an extended position.
References Cited (Backward Citations)
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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) | 1981-02-20 | 1981-08-22 | 1982-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-20 | 1985-08-22 | 1986-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-20 | 1989-08-22 | 1990-02-21 | $7700.00 | Window Closed / Lapsed |