Patent US3132061A successfully refreshed from Google Patents.
US3132061A
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Exothermic composition containing perlite
Assignee: Exomet Inc
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Filing: 1962-06-22
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Granted: 1964-05-05
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
- 👤 John P Walsh
- 👤 Harold F Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:00
CPC Classifications
C; C22; C22B; C22B5/00; C22B5/02; C22B5/04; B; B22; B22D; B22D7/00; B22D7/06; B22D7/10; B22D7/104; C22B5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
THE IMPROVED MOLDABLE EXOTHERMIC COMPOSITION COMPRISING PARTICULATE ALUMINUM 15 TO 40%, IRON OXIDE 20 TO 40%, 3 TO 20% OF A NITRATE OF THE GROUP CONSISTING OF SODIUM NITRATE AND BARIUM NITRATE, SAID RION OXIDE AND NITRATE BEING IN AN AMOUNT INSUFFICIENT TO COMPLETELY OXIDIZE THE ALUMINUM, FROM 2 TO 30% BY WEIGHT OF A LIGHT-WEIGHT BULKY MINERAL OF THE GROUP CONSISTING OF FOLIATED MICACEOUS MINERAL AND PERLITE WHICH MELTS AT A TEMPERATURE BELOW THE TEMPERATURE RESULTING FROM THE EXOTHERMIC REACTION OF THE COMPOSITION, AND ORGANIC BINDER, AND 10 TO 35% OF A REFRACTORY OXIDE WHICH DOES NOT MELT AT THE TMPERATURE RESULTING FROM THE EXOTHERMIC REACTION OF THE COMPOSITION.
Claim 2
Dependent Claim
110 words
THE IMPROVED MOLDABLE EXOTHERMIC COMPOSITION COMPRISING PARTICULATE ALUMINUM 15 TO 40%, IRON OXIDE 20 TO 40%, 3 TO 20% OF A NITRATE OF THE GROUP CONSISTING OF SODIUM NITRATE AND BARIUM NITRATE, SAID RION OXIDE AND NITRATE BEING IN AN AMOUNT INSUFFICIENT TO COMPLETELY OXIDIZE THE ALUMINUM, FROM 2 TO 30% BY WEIGHT OF A LIGHT-WEIGHT BULKY MINERAL OF THE GROUP CONSISTING OF FOLIATED MICACEOUS MINERAL AND PERLITE WHICH MELTS AT A TEMPERATURE BELOW THE TEMPERATURE RESULTING FROM THE EXOTHERMIC REACTION OF THE COMPOSITION, AND ORGANIC BINDER, AND 10 TO 35% OF A REFRACTORY OXIDE WHICH DOES NOT MELT AT THE TMPERATURE RESULTING FROM THE EXOTHERMIC REACTION OF THE COMPOSITION.
References Cited (Backward Citations)
US2798818A
Cited
US2836484A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |