Patent US3334278A successfully refreshed from Google Patents.
US3334278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay or oscillating circuits
Assignee: Studebaker Worthington Inc
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Filing: 1964-06-03
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Granted: 1967-08-01
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Expires: 1984-06-03
Abstract
No abstract record available.
Inventors
- 👤 Carl E Atkins
- 👤 Robert L Ziolkowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:28
CPC Classifications
H; H01; H01H; H01H43/00; H01H43/30; H03; H03K; H03K3/00; H03K3/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
108 words
A TIME DELAY CIRCUIT COMPRISING: (1) A SOURCE OF DIRECT CURRENT POTENTIAL, (2) A RELAY INCLUDING A WINDING, AT LEAST TWO NORMALLY OPEN CONTACTS, AND AT LEAST TWO NORMALLY CLOSED CONTACTS, (3) AN OPERATING CIRCUIT FOR ENERGIZING SAID RELAY AND LATCHING IT IN ITS OPERATED CONDITION, (4) A SEMICONDUCTOR DIODE CONNECTED IN PARALLEL WITH SAID WINDING AND POLED SO AS TO BE NONCONDUCTIVE AND (5) AN ELECTRICAL HEATER FOR SAID DIODE, WHEREBY THE ACTUATION OF SAID RELAY CLOSES THE NORMALLY OPEN PAIR OF CONTACTS AND APPLIES CURRENT TO THE HEATER TO RENDER SAID DIODE CONDUCTIVE AFTER A PREDETERMINED TIME INTERVAL, THEREBY SHUNTING SAID WINDING AND DE-ENERGIZING SAID RELAY,
Claim 2
Dependent Claim
108 words
A TIME DELAY CIRCUIT COMPRISING: (1) A SOURCE OF DIRECT CURRENT POTENTIAL, (2) A RELAY INCLUDING A WINDING, AT LEAST TWO NORMALLY OPEN CONTACTS, AND AT LEAST TWO NORMALLY CLOSED CONTACTS, (3) AN OPERATING CIRCUIT FOR ENERGIZING SAID RELAY AND LATCHING IT IN ITS OPERATED CONDITION, (4) A SEMICONDUCTOR DIODE CONNECTED IN PARALLEL WITH SAID WINDING AND POLED SO AS TO BE NONCONDUCTIVE AND (5) AN ELECTRICAL HEATER FOR SAID DIODE, WHEREBY THE ACTUATION OF SAID RELAY CLOSES THE NORMALLY OPEN PAIR OF CONTACTS AND APPLIES CURRENT TO THE HEATER TO RENDER SAID DIODE CONDUCTIVE AFTER A PREDETERMINED TIME INTERVAL, THEREBY SHUNTING SAID WINDING AND DE-ENERGIZING SAID RELAY,
Claim 3
Dependent Claim
92 words
AN ELECTROMECHANICAL OSCILLATOR COMPRISING: (1) A POWER SOURCE; (2) A RELAY HAVING AT LEAST ONE ARMATURE, A WINDING AND AT LEAST ONE CONTACT ASSOCIATED WITH EACH ARMATURE; (3) AN ENERGIZING CIRCUIT FOR SAID RELAY INCLUDING; (A) A SOLID-STATE DIODE CONNECTED IN SERIES WITH SAID WINDING; (B) HEATING MEANS ASSOCIATED WITH SAID DIODE AND CONNECTED IN SERIES BETWEEN SAID POWER SOURCE AND A NORMALLY CLOSED CONTACT OF SAID RELAY, AND THROUGH THE ARMATURE OF SAID RELAY TO GROUND; (C) SWITCHING MEANS CONNECTED IN SERIES BETWEEN SAID HEATING MEANS AND SAID NORMALLY CLOSED CONTACT.
Claim 4
Dependent Claim
92 words
AN ELECTROMECHANICAL OSCILLATOR COMPRISING: (1) A POWER SOURCE; (2) A RELAY HAVING AT LEAST ONE ARMATURE, A WINDING AND AT LEAST ONE CONTACT ASSOCIATED WITH EACH ARMATURE; (3) AN ENERGIZING CIRCUIT FOR SAID RELAY INCLUDING; (A) A SOLID-STATE DIODE CONNECTED IN SERIES WITH SAID WINDING; (B) HEATING MEANS ASSOCIATED WITH SAID DIODE AND CONNECTED IN SERIES BETWEEN SAID POWER SOURCE AND A NORMALLY CLOSED CONTACT OF SAID RELAY, AND THROUGH THE ARMATURE OF SAID RELAY TO GROUND; (C) SWITCHING MEANS CONNECTED IN SERIES BETWEEN SAID HEATING MEANS AND SAID NORMALLY CLOSED CONTACT.
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) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |