Patent US3129946A successfully refreshed from Google Patents.
US3129946A
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Phonograph arm
Assignee: Control Data Corp
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Filing: 1961-11-30
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Granted: 1964-04-21
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Expires: 1981-11-30
Abstract
No abstract record available.
Inventors
- 👤 Rabinow Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:24
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/10; G11B3/34; G11B3/38; G11B3/08; G11B3/085; G11B3/08503; G11B3/08519; G11B3/08522; G11B3/12; G11B3/121; G11B3/122
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
162 words
IN A RECORD PLAYER HAVING A TURNTABLE TO SUPPORT A RECORD WHICH HAS A GROOVE, AND HAVING A TONE ARM PROVIDED WITH A STYLUS, THE IMPROVEMENT COMPRISING: MEANS TO SUPPORT SAID TONE ARM FOR TRANSLATION AND FOR ANGULAR PIVOTAL MOVEMENT, MEANS OPERATIVELY ASSOCIATED WITH SAID SUPPORT MEANS AND WITH SAID TONE ARM FOR TRANSLATING SAID TONE ARM AND INCLUDING MECHANICAL SERVO MEANS RESPONSIVE TO THE PIVOT ANGLE BETWEEN SAID ARM AND SAID SUPPORT MEANS TO APPLY A COMPONENT OF TRANSLATION MOTION TO SAID TONE ARM IN A FIRST DIRECTION TO RESTORE THE PIVOT ANGLE BETWEEN SAID TONE ARM AND SAID SUPPORT MEANS TO A PREDETERMINED ANGULAR RELATIONSHIP IN RESPONSE TO ANGULAR DEVIATION THEREBETWEEN IN A FIRST DIRECTION, AND SELECTIVELY TO APPLY A COMPONENT OF TRANSLATION MOTION TO SAID TONE ARM IN A SECOND DIRECTION TO RESTORE THE PIVOT ANGLE BETWEEN SAID TONE ARM AND SAID SUPPORT MEANS TO A PREDETERMINED ANGULAR RELATIONSHIP IN RESPONSE TO ANGULAR DEVIATION THEREBETWEEN IN A SECOND DIRECTION.
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) | 1967-04-21 | 1967-10-21 | 1968-04-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-21 | 1971-10-21 | 1972-04-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-21 | 1975-10-21 | 1976-04-21 | $7700.00 | Window Closed / Lapsed |