US2730893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxy-hydrogen flash detonator tester
Assignee: Individual
•
Filing: 1952-06-27
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Granted: 1956-01-17
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Expires: 1972-06-27
Abstract
No abstract record available.
Inventors
- 👤 Frank W Hayward
- 👤 Charles J Zablocki
- 👤 Kenneth R Scribner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:51
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/50; G01N25/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
A FLASH FIRED DETONATOR TESTING APPARATUS COMPRISING, AN EXPLOSION CHAMBER HAVING AN OPENING THEREIN, HOLDING MEANS FOR CONTAINING SAID DETONATOR AND ADAPTED TO BE MOVED INTO ENGAGEMENT WITH SAID CHAMBER TO CLOSE THE OPENING THEREIN, MEANS FOR ADMITTING AN EXPLOSIVE GAS MIXTURE HAVING A PREDETERMINED FLASH TEMPERATURE TO THE INTERIOR OF SAID CHAMBER TO SUBJECT THE DETONATOR WITHIN SAID EXPLOSION CHAMBER TO SUBJECT THE DETONATOR UNDER TEST TO SAID PREDETERMINED FLASH TEMPERATURE OF SAID EXPLOSIVE GAS MIXTURE THEREBY FIRING A SATISFACTROY DETONATOR.
Claim 2
Dependent Claim
82 words
A FLASH FIRED DETONATOR TESTING APPARATUS COMPRISING, AN EXPLOSION CHAMBER HAVING AN OPENING THEREIN, HOLDING MEANS FOR CONTAINING SAID DETONATOR AND ADAPTED TO BE MOVED INTO ENGAGEMENT WITH SAID CHAMBER TO CLOSE THE OPENING THEREIN, MEANS FOR ADMITTING AN EXPLOSIVE GAS MIXTURE HAVING A PREDETERMINED FLASH TEMPERATURE TO THE INTERIOR OF SAID CHAMBER TO SUBJECT THE DETONATOR WITHIN SAID EXPLOSION CHAMBER TO SUBJECT THE DETONATOR UNDER TEST TO SAID PREDETERMINED FLASH TEMPERATURE OF SAID EXPLOSIVE GAS MIXTURE THEREBY FIRING A SATISFACTROY DETONATOR.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-16 | 1959-07-18 | 1960-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-16 | 1963-07-18 | 1964-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-16 | 1967-07-18 | 1968-01-17 | $7700.00 | Window Closed / Lapsed |