US4343687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of chain reactions by laser chemistry
Assignee: BROOKLYN COLLEGE FOUNDATION BROOKLYN COLLEGE OF CITY UNIVERSITY OF NEW YORK
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Filing: 1980-05-27
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Granted: 1982-08-10
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Expires: 2000-05-27
Abstract
Abstract Directed to the use of non-resonant laser energy to initiate reactions in reaction mixtures containing ingredients of the kind and in the amounts capable of forming chain reactions.
Inventors
- 👤 Avigdor M. Ronn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:48
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/04; C01B17/0473; C01B17/0478; B; B01; B01J; B01J19/00; B01J19/08; B01J19/12; B01J19/121; C01G; C01G31/00; C01G31/02; C01G37/00; C01G37/02; C01G49/00; C01G49/02; C01G49/06; C23; C23C; C23C16/00; C23C16/44; C23C16/48; C23C16/483
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
60 words
A process for initiating chain reactions by laser chemistry which comprises mixing in a bounded space at least two compounds of a kind and in amounts capable of sustaining a chain reaction and initiating a reaction therebetween by irradiating the mixture with an infrared laser beam having a frequency not absorbed by said compounds and insufficient to create a spark.
Claim 2
Dependent Claim
60 words
A process for initiating chain reactions by laser chemistry which comprises mixing in a bounded space at least two compounds of a kind and in amounts capable of sustaining a chain reaction and initiating a reaction therebetween by irradiating the mixture with an infrared laser beam having a frequency not absorbed by said compounds and insufficient to create a spark.
Claim 3
Dependent Claim
21 words
A process according to claim 1 wherein said compounds are of a kind and are in amounts capable of sustaining combustion.
Claim 4
Dependent Claim
22 words
A process according to claim 2 wherein said mixture is in contact with a decomposable compound which is decomposed by said combustion.
Claim 5
Dependent Claim
16 words
A process according to claim 2 wherein said combustion is initiated by a single laser pulse.
Claim 6
Dependent Claim
14 words
A process according to claim 3 wherein said decomposable compound is a metal compound.
Claim 7
Dependent Claim
31 words
A process according to claim 2 wherein said compounds are fuels from the group consisting of hydrogen, hydrocarbons and alcohols and oxidizers from the group consisting of air, oxygen and chlorine.
References Cited (Backward Citations)
US825927A
Cited
US3719454A
Cited
GB1429426A
Cited
US4043308A
Cited
US4155822A
Cited
US4230546A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-09 | 1986-02-08 | 1986-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-09 | 1990-02-08 | 1990-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-09 | 1994-02-08 | 1994-08-10 | $7700.00 | Window Closed / Lapsed |