US3625613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for remote sensing and analyzing of gaseous materials using raman radiation
Assignee: Avco Corp
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Filing: 1968-06-28
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Granted: 1971-12-07
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Expires: 1988-06-28
Abstract
Abstract A turbomachine apparatus disclosed includes a laser transmitter for transmitting a pulsed laser beam for remote sensing and analyzing of gaseous materials. A receiver including optical means gathers scattered light which is supplied to light beam separating means which provide light beams at the wave-number of the incident unshifted laser beam light and at the Raman-shifted wave numbers of the light scattered by the remote gaseous materials being sensed and analyzed.
Inventors
- 👤 Gurdon R Abell
- 👤 Charles E Gillespie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:54
CPC Classifications
G; G01; G01J; G01J3/00; G01J3/28; G01J3/44; G01N; G01N21/00; G01N21/62; G01N21/63; G01N21/65
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
42 words
The combination as defined in claim 1 and additionally including range-gating means coupled to the output of said light sensitive means, said range-gating means passing said output signals resulting from said Raman-shifted light beam originating at a selectable distance from said receiver.
Claim 2
Dependent Claim
67 words
The combination as defined in claim 2 wherein said transmitter means is a pulsed nitrogen laser for providing light pulses at a wavelength of 3371 A. and additionally including: a. gimbal means for simultaneously selectably pointing said transmitter and receiver means; and b. indicator means for receiving said third output for indicating the location of a gaseous material producing said Raman-shifted light in said second light beam.
Claim 3
Dependent Claim
22 words
The combination as defined in claim 3 and additionally including computer means for selectably controlling said gimbal means and said range-gating means.
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |