US3195769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burst diaphragm and method of making same
Assignee: Individual
•
Filing: 1961-08-31
•
Granted: 1965-07-20
•
Expires: 1981-08-31
Abstract
No abstract record available.
Inventors
- 👤 Gerald A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:05
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38; B21D51/383; F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16; F16K17/162
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
AN ARTICLE OF MANUFACTURE COMPRISING A ONE-PIECE IMPERFORATE BURST DIAPHRAGM OF ESSENTIALLY DUCTIBLE METAL HAVING A PLURALITY OF INDEPENDENT NONINTERSECTING FAILURE GROOVES EACH HAVING A THIN NARROW FLAT BOTTOM LYING IN THE PLANE OF THE FACE OF THE DIAPHRAGM AND WHICH GROOVE BOTTOMS ARE HARD AND BRITTLE IN COMPARISON WITH THE DUCTILE CHARACTER OF SUBSTANTIALLY ALL OTHER PORTIONS OF THE DIAPHRAGM, SAID FAILURE GROOVES BEING DISTRIBUTED IN AN ARC ADJACENT BUT SPACED INWARDLY FROM THE PERIMETER OF THE DIAPHRAGM AND INCLUDING ONE GROOVE CROSSING THE CENTER OF THE DIAPHRAGM WHERE ITS BOTTOM IS SUBJECTED TO THE GREATEST STRESS AND FAILS FIRST WHEN THE DIAPHRAGM IS SUBJECTED TO A PREDETERMINED PRESSURE DIFFERENTIAL, SAID FAILURE GROOVES INCLUDING A PLURLAITY OF ARCUATE GROOVES ARRANGED IN A RING WITH THEIR ENDS SPACED CLOSELY APART CIRCUMFERENTIALLY OF THE DIAPHRAGM TO PROVIDE A PLURALITY
Claim 2
Dependent Claim
138 words
AN ARTICLE OF MANUFACTURE COMPRISING A ONE-PIECE IMPERFORATE BURST DIAPHRAGM OF ESSENTIALLY DUCTIBLE METAL HAVING A PLURALITY OF INDEPENDENT NONINTERSECTING FAILURE GROOVES EACH HAVING A THIN NARROW FLAT BOTTOM LYING IN THE PLANE OF THE FACE OF THE DIAPHRAGM AND WHICH GROOVE BOTTOMS ARE HARD AND BRITTLE IN COMPARISON WITH THE DUCTILE CHARACTER OF SUBSTANTIALLY ALL OTHER PORTIONS OF THE DIAPHRAGM, SAID FAILURE GROOVES BEING DISTRIBUTED IN AN ARC ADJACENT BUT SPACED INWARDLY FROM THE PERIMETER OF THE DIAPHRAGM AND INCLUDING ONE GROOVE CROSSING THE CENTER OF THE DIAPHRAGM WHERE ITS BOTTOM IS SUBJECTED TO THE GREATEST STRESS AND FAILS FIRST WHEN THE DIAPHRAGM IS SUBJECTED TO A PREDETERMINED PRESSURE DIFFERENTIAL, SAID FAILURE GROOVES INCLUDING A PLURLAITY OF ARCUATE GROOVES ARRANGED IN A RING WITH THEIR ENDS SPACED CLOSELY APART CIRCUMFERENTIALLY OF THE DIAPHRAGM TO PROVIDE A PLURALITY
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |