US3240516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint structure
Assignee: Individual
•
Filing: 1963-10-04
•
Granted: 1966-03-15
•
Expires: 1983-10-04
Abstract
No abstract record available.
Inventors
- 👤 Barish Emil
- 👤 Burton B Rutkin
- 👤 Joseph A Witt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:36
CPC Classifications
A; A61; A61G; A61G13/00; A61G13/10; A61G13/12; F; F16; F16C; F16C11/00; F16C11/04; F16C11/06; F16C11/0619; F16M; F16M11/00; F16M11/02; F16M11/04; F16M11/06; F16M11/12; F16M11/14; F16M11/20; F16M11/2007; F16M11/2021; F16M11/2035; F16M11/2078; F21; F21V; F21V21/00; F21V21/14; F21V21/26; F21V21/28; F21V21/29; A61G13/101; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32008; Y10T403/32016; Y10T403/32024; Y10T403/32032; Y10T403/32254; Y10T403/32262; Y10T403/32311
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
A SUPPORT STRUCTURE HAVING AT LEAST THREE JOINTS, WHEREIN ALL OF THE JOINTS CAN BE LOCKED BY A SINGLE MOTION, COMPRISING IN COMBINATION: (A) A PAIR OF HOLLOW ARMS HAVING ALIGNED TRANSVERSE APERTURES THEREIN AT ONE END THEREOF AND MEANS PIVOTING SAID ARMS TOGETHER AT SAID ONE END OF EACH OF SAID ARMS; (B) SAID PIVOTING MEANS COMPRISING A SHAFT DISPOSED THROUGH SAID APERTURES IN THE ARMS; (C) A PAIR OF OPPOSITELY DISPOSED WEDGE MEMBERS ON SAID SHAFT ONE IN EACH APERTURE; (D) RODS MANUALLY DISPOSED WITHIN EACH OF THE ARMS, THE INNER END OF EACH OF RODS BEING IN ENGAGEMENT WITH ONE OF SAID WEDGES; (E) A MOVABLE JOINT COMPRISING AT LEAST TWO ELEMENTS AT THE OUTER END OF EACH OF THE ARMS; (F) EACH OF SAID RODS HAVING MEANS ON THE OUTER END THEREOF TO ENGAGE ONE OF SAID JOINT ELEMENTS WHEREBY OUTWARD MOVEMENT OF THE RODS LOCKS EACH OF THE JOINTS; (G) AND MEANS TO MOVE SAID SHAFT TO FORCE THE WEDGES BETWEEN ONE WALL OF EACH OF THE APERTURES AND THE INNER ENDS OF EACH ROD TO LOCK THE PIVOT AND SIMULTANEOUSLY FORCE THE RODS OUTWARDLY, THUS LOCKING THE JOINTS AT THE ENDS OF THE RODS.
Claim 2
Dependent Claim
200 words
A SUPPORT STRUCTURE HAVING AT LEAST THREE JOINTS, WHEREIN ALL OF THE JOINTS CAN BE LOCKED BY A SINGLE MOTION, COMPRISING IN COMBINATION: (A) A PAIR OF HOLLOW ARMS HAVING ALIGNED TRANSVERSE APERTURES THEREIN AT ONE END THEREOF AND MEANS PIVOTING SAID ARMS TOGETHER AT SAID ONE END OF EACH OF SAID ARMS; (B) SAID PIVOTING MEANS COMPRISING A SHAFT DISPOSED THROUGH SAID APERTURES IN THE ARMS; (C) A PAIR OF OPPOSITELY DISPOSED WEDGE MEMBERS ON SAID SHAFT ONE IN EACH APERTURE; (D) RODS MANUALLY DISPOSED WITHIN EACH OF THE ARMS, THE INNER END OF EACH OF RODS BEING IN ENGAGEMENT WITH ONE OF SAID WEDGES; (E) A MOVABLE JOINT COMPRISING AT LEAST TWO ELEMENTS AT THE OUTER END OF EACH OF THE ARMS; (F) EACH OF SAID RODS HAVING MEANS ON THE OUTER END THEREOF TO ENGAGE ONE OF SAID JOINT ELEMENTS WHEREBY OUTWARD MOVEMENT OF THE RODS LOCKS EACH OF THE JOINTS; (G) AND MEANS TO MOVE SAID SHAFT TO FORCE THE WEDGES BETWEEN ONE WALL OF EACH OF THE APERTURES AND THE INNER ENDS OF EACH ROD TO LOCK THE PIVOT AND SIMULTANEOUSLY FORCE THE RODS OUTWARDLY, THUS LOCKING THE JOINTS AT THE ENDS OF THE RODS.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |