US3305239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position trip
Assignee: Zenith Electronics LLC
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Filing: 1964-10-19
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Granted: 1967-02-21
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Expires: 1984-10-19
Abstract
No abstract record available.
Inventors
- 👤 Richard A Hathaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:24
CPC Classifications
G; G11; G11B; G11B17/00; G11B17/08; G11B17/12; G11B17/16; G11B17/162; G11B17/165
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
A POSITION TRIP FOR A PHONOGRAPH HAVING A TONE ARM WHICH IS PIVOTED NEAR ONE END AND MOVABLE IN A GENERALLY RADIAL PATH BETWEEN AN OUTER DIAMETER AND A RELATED INNER DIAMETER OF THE RECORD TO BE TRANSCRIBED AND FURTHER HAVING AN AUTOMATIC RECORD CHANGE MECHANISM FOR EFFECTUATING A RECORD CHANGE CYCLE COMPRISING: MEANS RESPONSIVE TO SAID RECORD CHANGE MECHANISM FOR SENSING THE MAGNITUDE OF SAID OUTER DIAMETER; FIRST CONTACT MEANS MOVABLE ALONG A PATH IN CORRESPONDENCE TO THE MOVEMENT OF SAID TONE ARM; SECOND CONTACT MEANS DISPOSED IN SAID PATH AT A POSITION PRESCRIBED BY SAID SENSING MEANS; AND ACTUATING MEANS RESPONSIVE TO THE ENGAGEMENT OF SAID FIRST AND SECOND CONTACT MEANS FOR INITIATING SAID CHANGE CYCLE.
Claim 2
Dependent Claim
118 words
A POSITION TRIP FOR A PHONOGRAPH HAVING A TONE ARM WHICH IS PIVOTED NEAR ONE END AND MOVABLE IN A GENERALLY RADIAL PATH BETWEEN AN OUTER DIAMETER AND A RELATED INNER DIAMETER OF THE RECORD TO BE TRANSCRIBED AND FURTHER HAVING AN AUTOMATIC RECORD CHANGE MECHANISM FOR EFFECTUATING A RECORD CHANGE CYCLE COMPRISING: MEANS RESPONSIVE TO SAID RECORD CHANGE MECHANISM FOR SENSING THE MAGNITUDE OF SAID OUTER DIAMETER; FIRST CONTACT MEANS MOVABLE ALONG A PATH IN CORRESPONDENCE TO THE MOVEMENT OF SAID TONE ARM; SECOND CONTACT MEANS DISPOSED IN SAID PATH AT A POSITION PRESCRIBED BY SAID SENSING MEANS; AND ACTUATING MEANS RESPONSIVE TO THE ENGAGEMENT OF SAID FIRST AND SECOND CONTACT MEANS FOR INITIATING SAID CHANGE CYCLE.
References Cited (Backward Citations)
US2527586A
Cited
US2287726A
Cited
US2555478A
Cited
US2762626A
Cited
US2983515A
Cited
US2965377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |