US3206572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid differential pressure and magnetically operated electric switch
Assignee: Motors Liquidation Co
•
Filing: 1962-12-26
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Granted: 1965-09-14
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Edwin J Buehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:55
CPC Classifications
H; H01; H01H; H01H36/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A DIFFERENTIAL FLUID PRESSURE ACTUATED SWITCH, A METALLIC CASING INCLUDING TWO FLUID PRESSURE INLETS AND AN INSULATED ELECTRICAL TERMINAL BEING MOUNTED ON THE CASING EXTERIOR, A MOVABLE DIAPHRAGM BEING POSITIONED INTERMEDIATE SAID INLETS, MEANS FOR APPLYING FLUID FROM EACH OF SAID INLETS TO OPPOSITE SIDES OF SAID DIAPHRAGM, A CONTACT ELEMENT BEING INSULATED FROM SAID CASING AND EXTENDING FROM SAID TERMINAL INTO THE INTERIOR OF SAID CASING, RELATIVELY MOVABLE MAGNET ANDARMATURE MEMBERS, ONE OF SAID MEMBERS BEING CONNECTED TO SAID DIAPHRAGM AND MOVABLE IN RESPONSE TO A PRESSURE DIFFERENTIAL ACROSS THE DIAPHRAGM, A GUIDE ELEMENT EXTENDING BETWEEN SAID ONE MEMBER AND SAID CONTACT ELEMENT TO RECEIVE TO OTHER OF
Claim 2
Dependent Claim
110 words
IN A DIFFERENTIAL FLUID PRESSURE ACTUATED SWITCH, A METALLIC CASING INCLUDING TWO FLUID PRESSURE INLETS AND AN INSULATED ELECTRICAL TERMINAL BEING MOUNTED ON THE CASING EXTERIOR, A MOVABLE DIAPHRAGM BEING POSITIONED INTERMEDIATE SAID INLETS, MEANS FOR APPLYING FLUID FROM EACH OF SAID INLETS TO OPPOSITE SIDES OF SAID DIAPHRAGM, A CONTACT ELEMENT BEING INSULATED FROM SAID CASING AND EXTENDING FROM SAID TERMINAL INTO THE INTERIOR OF SAID CASING, RELATIVELY MOVABLE MAGNET ANDARMATURE MEMBERS, ONE OF SAID MEMBERS BEING CONNECTED TO SAID DIAPHRAGM AND MOVABLE IN RESPONSE TO A PRESSURE DIFFERENTIAL ACROSS THE DIAPHRAGM, A GUIDE ELEMENT EXTENDING BETWEEN SAID ONE MEMBER AND SAID CONTACT ELEMENT TO RECEIVE TO OTHER OF
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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) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |