US3907447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for locking an actuating element
Assignee: Individual
•
Filing: 1973-11-16
•
Granted: 1975-09-23
•
Expires: 1993-11-16
Abstract
Abstract A device for locking an actuating element comprising a lock which consists of a support and a catch, their mating surfaces having a recess and a projection which engage for locking the actuating element. The external surface of the lock has a portion in the form of a solid of revolution which carries a retainer for fixing the relative positions of the support, catch and actuating element, said retainer being constituted by a torsional spring whose inside diameter in a free state is larger than the diameter of the cylindrical portion by the size of the projection. Being relatively simple in design, this device allows an actuating element subjected to a load of several tons to be held locked by a force of several hundred grams.
Inventors
- 👤 Alexei Mikhailovich Arkharov
- 👤 Nikolai Trofimovich Romanenko
- 👤 Jury Filippovich Nikitin
- 👤 Ljudmila Anatolievna Litenkova
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:46
CPC Classifications
G; G05; G05G; G05G5/00; G05G5/12; G05G5/14; G05G5/18; F; F16; F16B; F16B2200/00; F16B2200/69; Y; Y10; Y10T; Y10T403/00; Y10T403/71; Y10T403/7147; Y10T403/7152
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
A device for locking an actuating element in a preset position comprising: a support; a catch mating with said support and forming, together with it, a lock, the mating surfaces of said support and catch having a recess on one of them and a projection on the other, said recess and projection being engaged while locking said actuating element, the external surface of said lock having a portion comprising a solid of revolution; a retainer for fixing the relative positions of said support and catch while locking said actuating element, said retainer comprising a torsional spring mounted on said solid of revolution; means for holding said spring from untwisting while locking said actuating element and allowing it to untwist while unlocking said actuating element, said means being located on said lock and connected with at least one end of said spring, said spring having an inside diameter in the free state larger than the outside diameter of said solid of revolution by at least the lateral dimensions of said projection.
Claim 2
Independent Claim
170 words
A device for locking an actuating element in a preset position comprising: a support; a catch mating with said support and forming, together with it, a lock, the mating surfaces of said support and catch having a recess on one of them and a projection on the other, said recess and projection being engaged while locking said actuating element, the external surface of said lock having a portion comprising a solid of revolution; a retainer for fixing the relative positions of said support and catch while locking said actuating element, said retainer comprising a torsional spring mounted on said solid of revolution; means for holding said spring from untwisting while locking said actuating element and allowing it to untwist while unlocking said actuating element, said means being located on said lock and connected with at least one end of said spring, said spring having an inside diameter in the free state larger than the outside diameter of said solid of revolution by at least the lateral dimensions of said projection.
Claim 3
Dependent Claim
14 words
A device according to claim 1, wherein said solid of revolution comprises a cylinder.
Claim 4
Dependent Claim
19 words
A device according to claim 1, wherein said solid of revolution carrying said retainer has a concave external surface.
Claim 5
Dependent Claim
33 words
A device according to claim 1, wherein said solid of revolution carrying said retainer is formed by the external surfaces of the catch and said support, said support having a segmental cross section.
Claim 6
Dependent Claim
38 words
A device according to claim 1, wherein said solid of revolution carrying said retainer comprises a support having two parts each shaped as a segment of a circle in cross section, and a catch located between said parts.
Claim 7
Dependent Claim
44 words
A device according to claim 1, wherein said solid of revolution carrying said retainer comprises a support having three parts each shaped as a sector of a circle in cross section, and a catch in the form of a bar located between said parts.
Claim 8
Dependent Claim
62 words
A device according to claim 1, wherein said means for holding said spring while locking said actuating element and releasing said spring while unlocking said element comprises two bars with ends interconnected at one side by a low-melting material adjoining an electric heating element, the other ends of said bars being connected, respectively, with the end of said spRing and said support.
Claim 9
Dependent Claim
33 words
A device according to claim 1, wherein at least one of the ends of said solid of revolution conprises a solid cylinder carrying several turns of said spring and one of its ends.
References Cited (Backward Citations)
US2289710A
Cited
US2399133A
Cited
US2751238A
Cited
US3428346A
Cited
US3378031A
Cited
US3797336A
Cited
US3811717A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |