Patent US3205329A successfully refreshed from Google Patents.
US3205329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensitive pressure-responsive device
Assignee: Individual
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Filing: 1963-08-06
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Granted: 1965-09-07
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Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jr John E Lindberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:52
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/30; G; G08; G08B; G08B17/00; G08B17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
VERY SENSITIVE PRESSURE-RESPOSNIVE DEVICE, INCLUDING IN COMBINATION: A HOUSING; A METAL DIAPHRAGM IN SAID HOUSING AND DIVIDING SAID HOUSING INTO FIRST AND SECOND CHAMBERS, SAID DIAPHRAGMI HAVINGAN AREA WHOSE PERIPHERY IS RIGIDLY FIXED TO SAID HOUSING, SAID AREA BEING DEFORMED INTO A BLISTER THAT FLEXES IN RESPONSE TO PRESSURE IN SAID FIRST CHAMBER, AND AN ELECTRODE SUPPORTED BY SAID HOUSING IN SAID SECOND CHAMBER AND ELECTRICALLY-INSULATED THEREFROM DIRECTLY OPPOSITE AND CENTRALLY LOCATED WITH RESPECT TO SAID BLISTER ON THE SIDE THEREOF AWAY FROM WHICH SASID BLISTER IS NORMALLY DEFLECTED AND HAVING A TIP OF METAL OF THE TYPE THAT OUTGASSES HYDROGEN WHEN HEATED, SAID METAL TIP BEING INGASSED WITH HYDROGEN, WHEREBY DEFLECTION OF SAID BLISTER TO A POSITION CAUSONG ARCING BETWEEN SAID TIP AND SAID ELECTRODE HEATS SAID TIP AND CAUSES IT TO OUTGAS, INCREASING THE PRESSURE IN SAID SECOND CHAMBER, THEREBY SNAPPING SAID BLISTER AWAY FROM SAID ELECTRODE.
Claim 2
Dependent Claim
149 words
VERY SENSITIVE PRESSURE-RESPOSNIVE DEVICE, INCLUDING IN COMBINATION: A HOUSING; A METAL DIAPHRAGM IN SAID HOUSING AND DIVIDING SAID HOUSING INTO FIRST AND SECOND CHAMBERS, SAID DIAPHRAGMI HAVINGAN AREA WHOSE PERIPHERY IS RIGIDLY FIXED TO SAID HOUSING, SAID AREA BEING DEFORMED INTO A BLISTER THAT FLEXES IN RESPONSE TO PRESSURE IN SAID FIRST CHAMBER, AND AN ELECTRODE SUPPORTED BY SAID HOUSING IN SAID SECOND CHAMBER AND ELECTRICALLY-INSULATED THEREFROM DIRECTLY OPPOSITE AND CENTRALLY LOCATED WITH RESPECT TO SAID BLISTER ON THE SIDE THEREOF AWAY FROM WHICH SASID BLISTER IS NORMALLY DEFLECTED AND HAVING A TIP OF METAL OF THE TYPE THAT OUTGASSES HYDROGEN WHEN HEATED, SAID METAL TIP BEING INGASSED WITH HYDROGEN, WHEREBY DEFLECTION OF SAID BLISTER TO A POSITION CAUSONG ARCING BETWEEN SAID TIP AND SAID ELECTRODE HEATS SAID TIP AND CAUSES IT TO OUTGAS, INCREASING THE PRESSURE IN SAID SECOND CHAMBER, THEREBY SNAPPING SAID BLISTER AWAY FROM SAID ELECTRODE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-06 | 1969-03-08 | 1969-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-06 | 1973-03-08 | 1973-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-06 | 1977-03-08 | 1977-09-07 | $7700.00 | Window Closed / Lapsed |