US3174754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tone arm brake assembly
Assignee: Zenith Electronics LLC
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Filing: 1960-12-23
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Granted: 1965-03-23
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Expires: 1980-12-23
Abstract
No abstract record available.
Inventors
- 👤 Werner H Puls
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:06
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B19/22; G11B3/00; G11B3/02; G11B3/08; G11B3/085; G11B3/08535; G11B3/08538; G11B3/08541; G11B3/08545
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A TONE ARM BRAKE ASSEMBLY FOR AN AUTOMATIC RECORD CHANGER HAVING A TURNTABLE, A TONE ARM ROTATABLY MOUNTED ON A SHAFT SECURED TO A MOUNTING BASE AND ADAPTED TO ENGAGE THE GROOVE OF A RECORD TO BE PLAYED ON THE TURNTABLE, AND A TONE ARM MOVING MECHANISM WHICH IS ACTUATED TO MOVE SAID TONE ARM VERTICALLY AND LATERALLY IN PREDETERMINED TIME RELATION DURING A RECORD CHANGE CYCLE, THE ASSEMBLY COMPRISING: A FIRST BRAKE MEANS, HAVING A PORTION THEREOF FIXED TO SAID SHAFT, FOR EXERTING A RELATIVELY HIGH BRAKING FORCE OF SAID SHAFT AND TONE ARM DURING SAID VERTICAL MOVEMENT OF SAID TONE ARM; A SECOND BRAKE MEANS, HAVING A PORTION THEREOF FIXED TO SAID SHAFT, FOR EXERTING A RELATIVELY HEAVY BRAKING FORCE ON SAID SHAFT AND TONE ARM DURING SAID LATERAL MOVEMENT OF SAID TONE ARM; AND AN ACTUATING MEANS COUPLED TO AND ACTUATED BY SAID TONE ARM MOVING MECHANISM FOR APPLYING SAID FIRST BRAKE MEANS DURING SAID VERTICAL MOVEMENT AND SAID SECOND BRAKE MEANS DURING SAID LATERAL MOVEMENT.
Claim 2
Dependent Claim
169 words
A TONE ARM BRAKE ASSEMBLY FOR AN AUTOMATIC RECORD CHANGER HAVING A TURNTABLE, A TONE ARM ROTATABLY MOUNTED ON A SHAFT SECURED TO A MOUNTING BASE AND ADAPTED TO ENGAGE THE GROOVE OF A RECORD TO BE PLAYED ON THE TURNTABLE, AND A TONE ARM MOVING MECHANISM WHICH IS ACTUATED TO MOVE SAID TONE ARM VERTICALLY AND LATERALLY IN PREDETERMINED TIME RELATION DURING A RECORD CHANGE CYCLE, THE ASSEMBLY COMPRISING: A FIRST BRAKE MEANS, HAVING A PORTION THEREOF FIXED TO SAID SHAFT, FOR EXERTING A RELATIVELY HIGH BRAKING FORCE OF SAID SHAFT AND TONE ARM DURING SAID VERTICAL MOVEMENT OF SAID TONE ARM; A SECOND BRAKE MEANS, HAVING A PORTION THEREOF FIXED TO SAID SHAFT, FOR EXERTING A RELATIVELY HEAVY BRAKING FORCE ON SAID SHAFT AND TONE ARM DURING SAID LATERAL MOVEMENT OF SAID TONE ARM; AND AN ACTUATING MEANS COUPLED TO AND ACTUATED BY SAID TONE ARM MOVING MECHANISM FOR APPLYING SAID FIRST BRAKE MEANS DURING SAID VERTICAL MOVEMENT AND SAID SECOND BRAKE MEANS DURING SAID LATERAL MOVEMENT.
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) | 1968-03-22 | 1968-09-21 | 1969-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-22 | 1972-09-21 | 1973-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-22 | 1976-09-21 | 1977-03-23 | $7700.00 | Window Closed / Lapsed |