Patent US3965285A successfully refreshed from Google Patents.
Patent US3083575A successfully refreshed from Google Patents.
US3083575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Instrument systems
Assignee: Bendix Corp
•
Filing: 1959-03-20
•
Granted: 1963-04-02
•
Expires: 1979-03-20
Abstract
No abstract record available.
Inventors
- 👤 Melvin W Frohardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:58
CPC Classifications
G; G01; G01L; G01L9/00; G01L9/0082
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
IN A ALTIMETER SYSTEM, FIRST AND SECOND ROTATABLE ELEMENTS, AN ELASTIC COUPLING INTERCONNECTING SAID FIRST AND SECOND ELEMENTS, A ROTATABLE BAROMETRIC PRESSURE SETTING ELEMENT, A MOVABLE INDICATING MEANS CONNECTED TO SAID FIRST ELEMENT, MEANS JOINTLY RESPONSIVE TO SIGNALS REPRESENTING ALTITUDE AND THE ROTATIONAL POSITION OF SAID SETTING ELEMENT FOR ROTATING SAID SECOND ELEMENT TO A POSITION CORRESPONDING TO A FUNCTION OF ALTITUDE, ELECTROMOTIVE MEANS JOINTLY RESPONSIVE TO THE ROTATIONAL POSITION OF SAID SETTING ELEMENT AND AN ELECTRICAL SIGNAL VARIABLE WITH ALTITUDE FOR DRIVING SAID FIRST ELEMENT TO A POSITION CORRESPONDING TO A FUNCTION OF ALTITUDE, MEANS RESPONSIVE TO FAILURE OF SAID ELECTRICAL SIGNAL FOR RENDERING SAID ELECTROMOTIVE MEANS INEFFECTIVE TO DRIVE SAID FIRST ELEMENT, SAID ELASTIC COUPLING BEING EFFECTIVE WHEN SAID ELECTROMOTIVE MEANS IS SO RENDERED INEFFECTIVE FOR ROTATING SAID FIRST ELEMENT INTO ROTATIONAL CORRESPONDENCE WITH SAID SECOND ELEMENT.
Claim 2
Dependent Claim
139 words
IN A ALTIMETER SYSTEM, FIRST AND SECOND ROTATABLE ELEMENTS, AN ELASTIC COUPLING INTERCONNECTING SAID FIRST AND SECOND ELEMENTS, A ROTATABLE BAROMETRIC PRESSURE SETTING ELEMENT, A MOVABLE INDICATING MEANS CONNECTED TO SAID FIRST ELEMENT, MEANS JOINTLY RESPONSIVE TO SIGNALS REPRESENTING ALTITUDE AND THE ROTATIONAL POSITION OF SAID SETTING ELEMENT FOR ROTATING SAID SECOND ELEMENT TO A POSITION CORRESPONDING TO A FUNCTION OF ALTITUDE, ELECTROMOTIVE MEANS JOINTLY RESPONSIVE TO THE ROTATIONAL POSITION OF SAID SETTING ELEMENT AND AN ELECTRICAL SIGNAL VARIABLE WITH ALTITUDE FOR DRIVING SAID FIRST ELEMENT TO A POSITION CORRESPONDING TO A FUNCTION OF ALTITUDE, MEANS RESPONSIVE TO FAILURE OF SAID ELECTRICAL SIGNAL FOR RENDERING SAID ELECTROMOTIVE MEANS INEFFECTIVE TO DRIVE SAID FIRST ELEMENT, SAID ELASTIC COUPLING BEING EFFECTIVE WHEN SAID ELECTROMOTIVE MEANS IS SO RENDERED INEFFECTIVE FOR ROTATING SAID FIRST ELEMENT INTO ROTATIONAL CORRESPONDENCE WITH SAID SECOND ELEMENT.
References Cited (Backward Citations)
US2508983A
Cited
US3009358A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-01 | 1966-10-01 | 1967-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-01 | 1970-10-01 | 1971-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-01 | 1974-10-01 | 1975-04-02 | $7700.00 | Window Closed / Lapsed |