US3173692A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phonograph tone arm
Assignee: V M Corp
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Filing: 1962-02-19
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Granted: 1965-03-16
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Expires: 1982-02-19
Abstract
No abstract record available.
Inventors
- 👤 Robert L Van Antwerp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:16
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A PHONOGRAPH TONE ARM ADAPTED TO MOUNT A CARTRIDGE IN A VERTICALLY COMPLIANT MANNER, COMPRISING, IN COMBINATION, A TONE ARM HOUSING HAVING A PAIR OF OPPOSED SIDE WALLS, OPPOSITELY DISPOSED PROJECTING PORTIONS FIXED RELATIVE TO THE INNER SURFACES OF SAID SIDE WALLS, RESPECTIVELY, EACH OF SAID PROJECTING PORTIONS HAVING A RECESS FORMED THEREIN SO AS TO OPEN GENERALLY DOWNWARDLY, A HORIZONTAL PIVOT PIN POSITIONED WITH ITS OPPOSITE ENDS SEATED IN SAID RECESSES, A TENSION SPRING HAVING ONE END ANCHORED WITH RESPECT TO SAID TONE ARM HOUSING AND ITS OTHER END SECURED TO SAID PIN TO BIAS THE SAME GENERALLY UPWARDLY INTO A SEATED POSITION IN SAID RECESSES, AND A CARTRIDGE MOUNTING BRACKET SUPPORTED ON SAID PIN FOR PIVOTAL MOVEMENT ABOUT THE AXIS THEREOF, SAID BRACKET HAVING A FORWARD END PORTION ADAPTED TO MOUNT A CARTRIDGE WHEREBY SAID BRACKET END PORTION AND A CARTRIDGE MOUNTED THEREON ARE ADAPTED TO PIVOT ABOUT THE AXIS OF SAID PIN AND THUS MOVE SUBSTANTIALLY VERTICALLY RELATIVE TO SAID TONE ARM.
Claim 2
Dependent Claim
165 words
A PHONOGRAPH TONE ARM ADAPTED TO MOUNT A CARTRIDGE IN A VERTICALLY COMPLIANT MANNER, COMPRISING, IN COMBINATION, A TONE ARM HOUSING HAVING A PAIR OF OPPOSED SIDE WALLS, OPPOSITELY DISPOSED PROJECTING PORTIONS FIXED RELATIVE TO THE INNER SURFACES OF SAID SIDE WALLS, RESPECTIVELY, EACH OF SAID PROJECTING PORTIONS HAVING A RECESS FORMED THEREIN SO AS TO OPEN GENERALLY DOWNWARDLY, A HORIZONTAL PIVOT PIN POSITIONED WITH ITS OPPOSITE ENDS SEATED IN SAID RECESSES, A TENSION SPRING HAVING ONE END ANCHORED WITH RESPECT TO SAID TONE ARM HOUSING AND ITS OTHER END SECURED TO SAID PIN TO BIAS THE SAME GENERALLY UPWARDLY INTO A SEATED POSITION IN SAID RECESSES, AND A CARTRIDGE MOUNTING BRACKET SUPPORTED ON SAID PIN FOR PIVOTAL MOVEMENT ABOUT THE AXIS THEREOF, SAID BRACKET HAVING A FORWARD END PORTION ADAPTED TO MOUNT A CARTRIDGE WHEREBY SAID BRACKET END PORTION AND A CARTRIDGE MOUNTED THEREON ARE ADAPTED TO PIVOT ABOUT THE AXIS OF SAID PIN AND THUS MOVE SUBSTANTIALLY VERTICALLY RELATIVE TO SAID TONE ARM.
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) | 1968-03-15 | 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 |