US3176170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic constant velocity actuator
Assignee: RCA Corp
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Filing: 1962-05-01
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Granted: 1965-03-30
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Expires: 1982-05-01
Abstract
No abstract record available.
Inventors
- 👤 Langdon H Fulton
- 👤 Thomas D Tilton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:08
CPC Classifications
G; G03; G03B; G03B9/00; G03B9/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN ACTUATOR FOR PRODUCING MECHANICAL MOVEMENT OF A MEMBER COMPRISING MEANS FOR PRODUCING A MAGNETIC FIELD OF LIMITED EXTENT AXIALLY OF SAID ACTUATOR, A COIL SUPPORTED FOR AXIAL MOVEMENT THROUGH SAID FIELD, SAID COIL COMPRISING A WINDING PORTION ADJACENT ONE END THEREOF, SAID WINDING PORTION PRODUCING ACCELERATION IN ONE DIRECTION OF SAID ACTUATOR FROM REST UPON ENERGIZATION OF SAID WINDING BY AN ELECTRIC CURRENT AS SAID WINDING PORTION MOVES THROUGH SAID FIELD, A SECOND WINDING PORTION NEXT TO SAID FIRST NAMED WINDING PORTION, AND CONDUCTIVE MATERIAL RETARDING MEANS ON SAID COIL, AND SECOND WINDING PORTION UPON CONTINUED ENERGIZATION OF SAID WINDING IN CONJUNCTION WITH SAID RETARDING MEANS PRODUCING CONTINUED MOVEMENT OF SAID ACTUATOR AT SUBSTANTIALLY CONSTANT VELOCITY AS SAID SECOND WINDING PORTION MOVES THROUGH SAID FIELD.
Claim 2
Dependent Claim
126 words
AN ACTUATOR FOR PRODUCING MECHANICAL MOVEMENT OF A MEMBER COMPRISING MEANS FOR PRODUCING A MAGNETIC FIELD OF LIMITED EXTENT AXIALLY OF SAID ACTUATOR, A COIL SUPPORTED FOR AXIAL MOVEMENT THROUGH SAID FIELD, SAID COIL COMPRISING A WINDING PORTION ADJACENT ONE END THEREOF, SAID WINDING PORTION PRODUCING ACCELERATION IN ONE DIRECTION OF SAID ACTUATOR FROM REST UPON ENERGIZATION OF SAID WINDING BY AN ELECTRIC CURRENT AS SAID WINDING PORTION MOVES THROUGH SAID FIELD, A SECOND WINDING PORTION NEXT TO SAID FIRST NAMED WINDING PORTION, AND CONDUCTIVE MATERIAL RETARDING MEANS ON SAID COIL, AND SECOND WINDING PORTION UPON CONTINUED ENERGIZATION OF SAID WINDING IN CONJUNCTION WITH SAID RETARDING MEANS PRODUCING CONTINUED MOVEMENT OF SAID ACTUATOR AT SUBSTANTIALLY CONSTANT VELOCITY AS SAID SECOND WINDING PORTION MOVES THROUGH SAID FIELD.
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) | 1968-03-29 | 1968-09-28 | 1969-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-29 | 1972-09-28 | 1973-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-29 | 1976-09-28 | 1977-03-30 | $7700.00 | Window Closed / Lapsed |