Patent US3742183A successfully refreshed from Google Patents.
US3742183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical element protection in laser apparatus
Assignee: Raytheon Co
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Filing: 1971-11-26
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Granted: 1973-06-26
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Expires: 1991-11-26
Abstract
Abstract Debris produced by a laser cutter is kept out of the laser optics and is carried away by an airflow system which moves with the cutting beam.
Inventors
- 👤 R Castro
- 👤 W Newton
- 👤 E Toscano
- 👤 F Viosca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:30
CPC Classifications
B; B23; B23K; B23K26/00; B23K26/14; B23K26/142
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
25 words
The combination of claim 1 characterized further by means for directing a quenchIng gas stream at the area where said focused beam reaches said material.
Claim 2
Dependent Claim
35 words
The combination of claim 1 characterized further by means for maintaining gas flow away from said area so as to remove therefrom debris and smoke generated when said focused laser beam reaches said combustible material.
Claim 3
Dependent Claim
60 words
The combination of claim 1 characterized further by: a. means including an additional discharge orifice for directing a quenching gas stream at the area where said focused beam reaches said material, and b. means for maintaining gas flow away from said area so as to remove therefrom debris and smoke generated when said focused laser beam reaches said combustible material.
References Cited (Backward Citations)
US3597578A
Cited
US3524038A
Cited
US3621198A
Cited
US3601576A
Cited
US3524046A
Cited
US3582466A
Cited
US3626141A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-25 | 1976-12-25 | 1977-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-25 | 1980-12-25 | 1981-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-25 | 1984-12-25 | 1985-06-26 | $7700.00 | Window Closed / Lapsed |