US3240498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Record changer mechanism
Assignee: Zenith Electronics LLC
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Filing: 1960-05-23
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Granted: 1966-03-15
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Expires: 1980-05-23
Abstract
No abstract record available.
Inventors
- 👤 Howard C Grossenheider
- 👤 Richard A Hathaway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:59
CPC Classifications
G; G11; G11B; G11B3/00; G11B3/02; G11B3/08; G11B17/00; G11B17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A RECORDER CHANGER COMPRISING: A RECORD-CHANGE CYCLING MECHANISM; A RECORD-FEED MECHANISM COUPLED TO AND ACTUATED BY SAID CHANGE MECHANISM FOR FEEDING RECORDS FROM A MAGAZINE INTO PLAYING POSITION; A SHUT-OFF MECHANISM, RESPONSIVE TO THE OPERATION OF SAID CHANGE MECHANISM FOLLOWING THE PLAY OF THE LAST RECORD IN SAID MAGAZINE, FOR SHUTTING OFF SAID CHANGER; MEANS FOR SIMULATING IN SAID CHANGER AN OPERATING CONDITION WHICH IS CHARACTERISTIC OF THE PLAY OF SAID LAST RECORD TO EFFECT SHUTOFF OF SAID CHANGER IN THE NEXT SUCCEEDING CYCLE OF SAID CHANGE MECHANISM; AND MEANS RESPONSIVE TO SAID SIMULATING MEANS FOR DISABLING SAID RECORD-FEED MECHANISM IN SAID NEXT SUCCEEDING CYCLE OF SAID CHANGE MECHANISM.
Claim 2
Dependent Claim
109 words
A RECORDER CHANGER COMPRISING: A RECORD-CHANGE CYCLING MECHANISM; A RECORD-FEED MECHANISM COUPLED TO AND ACTUATED BY SAID CHANGE MECHANISM FOR FEEDING RECORDS FROM A MAGAZINE INTO PLAYING POSITION; A SHUT-OFF MECHANISM, RESPONSIVE TO THE OPERATION OF SAID CHANGE MECHANISM FOLLOWING THE PLAY OF THE LAST RECORD IN SAID MAGAZINE, FOR SHUTTING OFF SAID CHANGER; MEANS FOR SIMULATING IN SAID CHANGER AN OPERATING CONDITION WHICH IS CHARACTERISTIC OF THE PLAY OF SAID LAST RECORD TO EFFECT SHUTOFF OF SAID CHANGER IN THE NEXT SUCCEEDING CYCLE OF SAID CHANGE MECHANISM; AND MEANS RESPONSIVE TO SAID SIMULATING MEANS FOR DISABLING SAID RECORD-FEED MECHANISM IN SAID NEXT SUCCEEDING CYCLE OF SAID CHANGE MECHANISM.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |