US3149791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position indicating transmitter
Assignee: Ramsay Engineering Co
•
Filing: 1962-02-19
•
Granted: 1964-09-22
•
Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Bernd H Richelmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:12
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/02; B02C2/04; B02C2/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A TRANSMITTER FOR INDICATING THE POSITION OF A SHIFTABLE MEMBER COMPRISING FIRST AND SECOND RESILIENT MEANS DISPOSED IN SERIES WITH EACH OTHER, SAID FIRST MEANS BEING MORE RESILIENT THAN SAID SECOND MEANS SO AS TO BE YIELDABLE TO A GREATER EXTENT THAN SAID SECOND MEANS WHEN ACTED UPON BY SAID MEMBER, A CORE ELEMENT, AND A COIL ELEMENT INDUCTIVELY ASSOCIATED WITH SAID CORE ELEMENT, ONE OF WHICH ELEMENTS IS MOVABLE WITH RESPECT TO THE OTHER BY SAID RESILIENT MEANS TO PROVIDE AN INDICATION OF THE POSITION OF SAID MEMBER.
Claim 2
Dependent Claim
89 words
A TRANSMITTER FOR INDICATING THE POSITION OF A SHIFTABLE MEMBER COMPRISING FIRST AND SECOND RESILIENT MEANS DISPOSED IN SERIES WITH EACH OTHER, SAID FIRST MEANS BEING MORE RESILIENT THAN SAID SECOND MEANS SO AS TO BE YIELDABLE TO A GREATER EXTENT THAN SAID SECOND MEANS WHEN ACTED UPON BY SAID MEMBER, A CORE ELEMENT, AND A COIL ELEMENT INDUCTIVELY ASSOCIATED WITH SAID CORE ELEMENT, ONE OF WHICH ELEMENTS IS MOVABLE WITH RESPECT TO THE OTHER BY SAID RESILIENT MEANS TO PROVIDE AN INDICATION OF THE POSITION OF SAID MEMBER.
References Cited (Backward Citations)
US1920505A
Cited
US2627183A
Cited
US2667309A
Cited
US2715680A
Cited
US2922971A
Cited
US2941732A
Cited
US3133706A
Cited
US3133707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |