US3300749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devices for engaging for relative movement the turns of a helical element
Assignee: TDK Micronas GmbH
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Filing: 1965-09-27
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Granted: 1967-01-24
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Anthony J Lombardi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:49
CPC Classifications
F; F16; F16C; F16C41/00; F16C41/002; F16H; F16H25/00; F16H25/18; F16H25/20; F16H25/22; F16H25/2204; F16H25/2233; F16H25/24; F16H25/2427; H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/24; H01H1/242; H01H1/36; H01H19/00; H01H19/54; H01H19/60; H01H19/635; H01H19/6355; H01Q; H01Q1/00; H01Q1/08; H01Q1/10; H01Q1/103; H01R; H01R39/00; H01R39/64; H01R39/643; F16C2380/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A DEVICE FOR ENGAGING FOR RELATIVE MOVEMENT THEREWITH THE TURNS OF A HELICAL ELEMENT COMPRISING IN COMBINATION, A HELICAL ELECTRICAL CONDUCTOR, CONTACT MEANS HAVING A PLURALITY OF CONTACT ELEMENTS, A SUPPORT FOR SAID CONTACT MEANS DISPOSING SAID CONTACT ELEMENTS IN A SERIES ANGULAR ARRANGEMENT CORRESPONDING TO THE PITCH OF SAID HELICAL ELECTRICAL CONDUCTOR SO THAT SAID CONTACT ELEMENTS ENGAGE SAID HELICAL ELECTRICAL CONDUCTOR AT A PLURALITY OF POINTS SPACED ALONG SAID HELICAL ELECTRICAL CONDUCTOR, AND MEANS COOPERATING WITH SAID SUPPORT TO APPLY RESILIENT FORCE BETWEEN SAID CONTACT ELEMENTS AND SAID HELICAL ELECTRICAL CONDUCTOR IN DIRECTIONS BOTH FORWARDLY AND REARWARDLY OF THE AXIS OF SAID HELIX FORMED BY SAID HELICAL ELECTRICAL CONDUCTOR.
Claim 2
Independent Claim
111 words
A DEVICE FOR ENGAGING FOR RELATIVE MOVEMENT THEREWITH THE TURNS OF A HELICAL ELEMENT COMPRISING IN COMBINATION, A HELICAL ELECTRICAL CONDUCTOR, CONTACT MEANS HAVING A PLURALITY OF CONTACT ELEMENTS, A SUPPORT FOR SAID CONTACT MEANS DISPOSING SAID CONTACT ELEMENTS IN A SERIES ANGULAR ARRANGEMENT CORRESPONDING TO THE PITCH OF SAID HELICAL ELECTRICAL CONDUCTOR SO THAT SAID CONTACT ELEMENTS ENGAGE SAID HELICAL ELECTRICAL CONDUCTOR AT A PLURALITY OF POINTS SPACED ALONG SAID HELICAL ELECTRICAL CONDUCTOR, AND MEANS COOPERATING WITH SAID SUPPORT TO APPLY RESILIENT FORCE BETWEEN SAID CONTACT ELEMENTS AND SAID HELICAL ELECTRICAL CONDUCTOR IN DIRECTIONS BOTH FORWARDLY AND REARWARDLY OF THE AXIS OF SAID HELIX FORMED BY SAID HELICAL ELECTRICAL CONDUCTOR.
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |