Patent US3139952A successfully refreshed from Google Patents.
US3139952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication systems for vehicles and machines
Assignee: Tecalemit Ltd
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Filing: 1961-12-13
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Granted: 1964-07-07
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Expires: 1981-12-13
Abstract
No abstract record available.
Inventors
- 👤 Jackson Harold Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:19
CPC Classifications
F; F16; F16N; F16N13/00; F16N13/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
IN A LUBRICATING SYSTEM INCLUDING A SOLENOID-OPERATED DEVICE FOR INCREASING THE PRESSURE OF A LUBRICANT AND CONTROL MEANS FOR CONTROLLING THE OPERATION OF SAID SOLENOID-OPERATED DEVICE, THE IMPROVEMENT WHEREIN SAID SOLENOID-OPERATED DEVICE COMPRISES THE COMBINATION OF PUMP MEANS, AN ARMATURE OPERATIVELY CONNECTED TO SAID PUMP MEANS, A FIRST AND SECOND WINDING ADJACENT SAID ARMATURE OPERABLE WHEN ENERGIZED TO ADVANCE SAID ARMATURE INTO A GIVEN DIRECTION, ANS SWITCH MEANS ACTUATED BY SAID CONTROL MEANS FOR FIRST ENERGIZING SAID FIRST WINDING AND FOR SUBSEQUENTLY ENERGIZING BOTH SAID FIRST AND SECOND WINDINGS IN RESPONSE TO MOVEMENT OF SAID ARMATURE AS CAUSED BY THE PRIOR ENERGIZATION OF SAID FIRST WINDING.
Claim 2
Dependent Claim
106 words
IN A LUBRICATING SYSTEM INCLUDING A SOLENOID-OPERATED DEVICE FOR INCREASING THE PRESSURE OF A LUBRICANT AND CONTROL MEANS FOR CONTROLLING THE OPERATION OF SAID SOLENOID-OPERATED DEVICE, THE IMPROVEMENT WHEREIN SAID SOLENOID-OPERATED DEVICE COMPRISES THE COMBINATION OF PUMP MEANS, AN ARMATURE OPERATIVELY CONNECTED TO SAID PUMP MEANS, A FIRST AND SECOND WINDING ADJACENT SAID ARMATURE OPERABLE WHEN ENERGIZED TO ADVANCE SAID ARMATURE INTO A GIVEN DIRECTION, ANS SWITCH MEANS ACTUATED BY SAID CONTROL MEANS FOR FIRST ENERGIZING SAID FIRST WINDING AND FOR SUBSEQUENTLY ENERGIZING BOTH SAID FIRST AND SECOND WINDINGS IN RESPONSE TO MOVEMENT OF SAID ARMATURE AS CAUSED BY THE PRIOR ENERGIZATION OF SAID FIRST WINDING.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |