US3356910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Integrated power controlled solenoid
Assignee: Whittaker Corp
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Filing: 1965-02-19
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Granted: 1967-12-05
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Expires: 1985-02-19
Abstract
No abstract record available.
Inventors
- 👤 Clayton D Bushnell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:03
CPC Classifications
H; H01; H01H; H01H47/00; H01H47/02; H01H47/04; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/18; H01F7/1805; H01F7/1838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
IN A SOLENOID CONTROL IN WHICH A COIL WOUND ON A CORE PRODUCES A MAGNETIC FLUX TO ATTRACT AN ARMATURE WHEN A SWITCH IS CLOSED TO CONNECT THE COIL IN A SERIES CIRCUIT WITH A VOLTAGE SOURCE AND A RESISTOR, THE IMPROVEMENT WHICH RESIDES IN CONNECTING THE OUTPUT TERMINALS OF A SWITCHING TRANSISTOR ACROSS SAID RESISTOR AND CONTROLLING THE ON-OFF CONDITION OF SAID TRANSISTOR IN ACCORDANCE WITH CHANGES IN MAGNETIC CONDITIONS IN SAID CORE, SAID RESISTOR BEING OF SUFFICIENTLY LARGE MANGITUDE TO LIMIT FLOW OF CURRENT TO SAID COIL TO SAFE VALUE DURING SUSTAINED CLOSURE TO SAID SWITCH.
Claim 2
Dependent Claim
98 words
IN A SOLENOID CONTROL IN WHICH A COIL WOUND ON A CORE PRODUCES A MAGNETIC FLUX TO ATTRACT AN ARMATURE WHEN A SWITCH IS CLOSED TO CONNECT THE COIL IN A SERIES CIRCUIT WITH A VOLTAGE SOURCE AND A RESISTOR, THE IMPROVEMENT WHICH RESIDES IN CONNECTING THE OUTPUT TERMINALS OF A SWITCHING TRANSISTOR ACROSS SAID RESISTOR AND CONTROLLING THE ON-OFF CONDITION OF SAID TRANSISTOR IN ACCORDANCE WITH CHANGES IN MAGNETIC CONDITIONS IN SAID CORE, SAID RESISTOR BEING OF SUFFICIENTLY LARGE MANGITUDE TO LIMIT FLOW OF CURRENT TO SAID COIL TO SAFE VALUE DURING SUSTAINED CLOSURE TO SAID SWITCH.
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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |