Patent JPS59201053A successfully refreshed from Google Patents.
Patent US3057718A successfully refreshed from Google Patents.
US3057718A
Expired / Lapsed
US
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Rupture disc
Assignee: Engelhard Industries Inc
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Filing: 1960-06-07
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Granted: 1962-10-09
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Expires: 1980-06-07
Abstract
No abstract record available.
Inventors
- 👤 Lincoln Arnold James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:01
CPC Classifications
C; C22; C22C; C22C5/00; C22C5/04; B; B01; B01J; B01J3/00; B01J3/002; F; F16; F16K; F16K17/00; F16K17/02; F16K17/14; F16K17/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A SAFETY DEVICE FOR CONTAINERS CONTAINING PRESSURIZED FLUIDS AND COMPRISING A SAFETY VALVE MEANS IN SAID CONTAINER AND OF THE TYPE CONTAINING A RUPTURE DISC, THE COMBINATION OF THE VALVE MEANS AND A RUPTURE DISC CONTAINED THEREIN WHICH IS COMPOSED OF AN ALLOY CONSISTING OF PLATINUM IN AN AMOUNT OF FROM 99.0% TO 99.9% AND AT LEAST TWO METALS TAKEN FROM THE GROUP CONSISTING OF GOLD, IRIDIUM, PALLADIUM, RHODIUM, RUTHENIUM, COPPER, IRON, NICKEL, MAGNESIUM, CHROMIUM AND ANTIMONY, BORON, ALUMINUM, MAGNESIUM, CHROMIUM AND ANTIMONY, ONE METAL OF SAID GROUP BEING PRESENT IN AN ANOUNT OF FROM 0.1% TO LESS THAN 1.0% OF THE ALLOY, OTHER METALS OF SAID GROUP BEING RESIDUAL IMPURITY METALS PRESENT IN IMPURITY AMOUNTS FOUND IN COMMERICALLY PURE PLATINUM, THE AMOUNT OF SAID ONE METAL BEING GREATER THAN THE COMBINED AMOUNT OF ALL OTHER METALS OF SAID GROUP.
Claim 2
Dependent Claim
141 words
IN A SAFETY DEVICE FOR CONTAINERS CONTAINING PRESSURIZED FLUIDS AND COMPRISING A SAFETY VALVE MEANS IN SAID CONTAINER AND OF THE TYPE CONTAINING A RUPTURE DISC, THE COMBINATION OF THE VALVE MEANS AND A RUPTURE DISC CONTAINED THEREIN WHICH IS COMPOSED OF AN ALLOY CONSISTING OF PLATINUM IN AN AMOUNT OF FROM 99.0% TO 99.9% AND AT LEAST TWO METALS TAKEN FROM THE GROUP CONSISTING OF GOLD, IRIDIUM, PALLADIUM, RHODIUM, RUTHENIUM, COPPER, IRON, NICKEL, MAGNESIUM, CHROMIUM AND ANTIMONY, BORON, ALUMINUM, MAGNESIUM, CHROMIUM AND ANTIMONY, ONE METAL OF SAID GROUP BEING PRESENT IN AN ANOUNT OF FROM 0.1% TO LESS THAN 1.0% OF THE ALLOY, OTHER METALS OF SAID GROUP BEING RESIDUAL IMPURITY METALS PRESENT IN IMPURITY AMOUNTS FOUND IN COMMERICALLY PURE PLATINUM, THE AMOUNT OF SAID ONE METAL BEING GREATER THAN THE COMBINED AMOUNT OF ALL OTHER METALS OF SAID GROUP.
References Cited (Backward Citations)
US2273806A
Cited
US2353254A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |