US3173299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air bearing position indicating system
Assignee: RTX Corp
•
Filing: 1961-10-26
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Granted: 1965-03-16
•
Expires: 1981-10-26
Abstract
No abstract record available.
Inventors
- 👤 Victor S Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:51
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
APPARATUS FOR DETERMINING THE POSITION OF A BALL RELATIVE TO A SEAT IN AN AIR BEARING ASSEMBLY COMPRISING A BALL, A SEAT PARTIALLY SURROUNDING SAID BALL AND ADAPTED TO SUPPORT SAID BALL, MEANS TO SUPPLY A FLUID UNDER PRESSURE TO THE JUNCTION BETWEEN SAID BALL AND SAID SEAT WHEREBY SAID BALL ROTATES WITHIN SAID SEAT UPON SAID FLUID, AND MEANS INCLUDING A COIL FOR GENERATING A FREQUENCY SIGNAL, SAID COIL BEING MOUNTED WITHIN SAID SEAT ADJACENT SAID BALL AND PRODUCING AN ELECTROMAGNETIC FIELD WHICH INDUCTIVELY COUPLES SAID BALLS, SAID SIGNAL GENERATING MEANS BEING RESPONSIVE TO CHANGES IN SAID INDUCTIVE COUPLING
Claim 2
Dependent Claim
100 words
APPARATUS FOR DETERMINING THE POSITION OF A BALL RELATIVE TO A SEAT IN AN AIR BEARING ASSEMBLY COMPRISING A BALL, A SEAT PARTIALLY SURROUNDING SAID BALL AND ADAPTED TO SUPPORT SAID BALL, MEANS TO SUPPLY A FLUID UNDER PRESSURE TO THE JUNCTION BETWEEN SAID BALL AND SAID SEAT WHEREBY SAID BALL ROTATES WITHIN SAID SEAT UPON SAID FLUID, AND MEANS INCLUDING A COIL FOR GENERATING A FREQUENCY SIGNAL, SAID COIL BEING MOUNTED WITHIN SAID SEAT ADJACENT SAID BALL AND PRODUCING AN ELECTROMAGNETIC FIELD WHICH INDUCTIVELY COUPLES SAID BALLS, SAID SIGNAL GENERATING MEANS BEING RESPONSIVE TO CHANGES IN SAID INDUCTIVE COUPLING
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-15 | 1968-09-14 | 1969-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-15 | 1972-09-14 | 1973-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-15 | 1976-09-14 | 1977-03-16 | $7700.00 | Window Closed / Lapsed |