US3434725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic stop apparatus for a recorder/reproducer
Assignee: Philips North America LLC
•
Filing: 1965-12-20
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Granted: 1969-03-25
•
Expires: 1985-12-20
Abstract
No abstract record available.
Inventors
- 👤 Walter Eibensteiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:04
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/02; G11B15/10; G11B15/05; G11B15/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
APPARATUS FOR SWITCHING OFF AT LEAST ONE OF THE OPERATING CONDITIONS OF A RECORDING AND/OR REPRODUCING DEVICE, COMPRISING: AT LEAST ONE KEY FOR ACTUATING AN OPERATING CONDITION OF THE DEVICE, SAID KEY ACTUATING SELECTED COMPONENTS OF THE DEVICE, LOCKING MEANS FOR LOCKING SAID KEY, AND ELECTROMAGNET ADAPTED TO RELEASE SAID LOCKING MEANS, A LINE SWITCH ADAPTED TO CONNECT AN EXTERNAL ENERGIZATION SOURCE TO SAID APPARATUS, AN AUXILLIARY ENERGIZATION SOURCE, AND AN AUXILIARY SWITCH MECHANICALLY COUPLED TO SAID LINE SWITCH, SAID AUXILIARY SWITCH BEING INCLUDED IN THE ENERGIZING CIRCUIT OF THE ELECTROMAGNET, SAID AUXILIARY SWITCH ACTING TO CLOSE SAID ENERGIZING CIRCUIT AND CONNECT SAID AUXILIARY ENERGIZATION SOURCE TO SAID ELECTROMAGNET WHEN SAID LINE SWITCH DISCONNECTS SAID EXTERNAL ENERGIZATION SOURCE, WHEREBY SAID ELECTROMAGNET IS ENERGIZED AND SAID LOCKING MEANS IS RELEASED WHEN SAID EXTERNAL ENERGIZATION SOURCE IS DISCONNECTED.
Claim 2
Dependent Claim
136 words
APPARATUS FOR SWITCHING OFF AT LEAST ONE OF THE OPERATING CONDITIONS OF A RECORDING AND/OR REPRODUCING DEVICE, COMPRISING: AT LEAST ONE KEY FOR ACTUATING AN OPERATING CONDITION OF THE DEVICE, SAID KEY ACTUATING SELECTED COMPONENTS OF THE DEVICE, LOCKING MEANS FOR LOCKING SAID KEY, AND ELECTROMAGNET ADAPTED TO RELEASE SAID LOCKING MEANS, A LINE SWITCH ADAPTED TO CONNECT AN EXTERNAL ENERGIZATION SOURCE TO SAID APPARATUS, AN AUXILLIARY ENERGIZATION SOURCE, AND AN AUXILIARY SWITCH MECHANICALLY COUPLED TO SAID LINE SWITCH, SAID AUXILIARY SWITCH BEING INCLUDED IN THE ENERGIZING CIRCUIT OF THE ELECTROMAGNET, SAID AUXILIARY SWITCH ACTING TO CLOSE SAID ENERGIZING CIRCUIT AND CONNECT SAID AUXILIARY ENERGIZATION SOURCE TO SAID ELECTROMAGNET WHEN SAID LINE SWITCH DISCONNECTS SAID EXTERNAL ENERGIZATION SOURCE, WHEREBY SAID ELECTROMAGNET IS ENERGIZED AND SAID LOCKING MEANS IS RELEASED WHEN SAID EXTERNAL ENERGIZATION SOURCE IS DISCONNECTED.
References Cited (Backward Citations)
US3305240A
Cited
US3355557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-24 | 1972-09-23 | 1973-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-24 | 1976-09-23 | 1977-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-24 | 1980-09-23 | 1981-03-25 | $7700.00 | Window Closed / Lapsed |