US3665337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means for sealing laser rods
Assignee: Union Carbide Corp
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Filing: 1970-07-17
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Granted: 1972-05-23
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Expires: 1990-07-17
Abstract
Abstract A metallic film in the form of a band is provided about each end of a laser rod. These metal bands in conjunction with a specially desiged rod holder enable conventional elastomer type O-rings to be used to seal the rod in the laser head cavity. Heretofore, such O-rings could not be used because of deterioration resulting from the high intensity pump radiation within the cavity. By means of the metal bands and holder, the O-rings are shielded from such radiation.
Inventors
- 👤 Walter Koechner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:47
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/02; H01S3/04; H01S3/042
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
71 words
A means for sealing a laser rod in a laser head comprising thin metallic end bands of opaque material circumferentially surrounding in intimate contact end portions of the laser rod; elastomer O-rings engaging about said end bands; and rod holders surrounding said O-rings, each holder being sealingly secured in said laser head, whereby said metallic bands in co-operation with said rod holders completely shield said O-rings from radiation in said head.
Claim 2
Dependent Claim
71 words
A means for sealing a laser rod in a laser head comprising thin metallic end bands of opaque material circumferentially surrounding in intimate contact end portions of the laser rod; elastomer O-rings engaging about said end bands; and rod holders surrounding said O-rings, each holder being sealingly secured in said laser head, whereby said metallic bands in co-operation with said rod holders completely shield said O-rings from radiation in said head.
Claim 3
Dependent Claim
160 words
A means for sealing a laser rod in a laser head cavity to prevent leakage of coolant, comprising: a. a thin metallic band circumferentially surrounding in intimate contact an end portion of said laser rod; b. a rod holder in the form of a cylindrical collar coaxially positioned over said band and having one open end of reduced internal diameter to define an annular end shoulder from which the remaining portion of said rod extends; c. an elastomer O-ring engaged about said band within said collar; d. a sleeve within said holder terminating short of said end shoulder so that said O-ring is sandwiched between the inner end of said sleeve and said end shoulder; and e. locking ring means in the opposite end of said collar for retaining said sleeve in said collar, said rod holder being sealingly securable in the laser head defining said cavity, said metallic band shielding said O-ring from radiation in said cavity and rod.
Claim 4
Dependent Claim
160 words
A means for sealing a laser rod in a laser head cavity to prevent leakage of coolant, comprising: a. a thin metallic band circumferentially surrounding in intimate contact an end portion of said laser rod; b. a rod holder in the form of a cylindrical collar coaxially positioned over said band and having one open end of reduced internal diameter to define an annular end shoulder from which the remaining portion of said rod extends; c. an elastomer O-ring engaged about said band within said collar; d. a sleeve within said holder terminating short of said end shoulder so that said O-ring is sandwiched between the inner end of said sleeve and said end shoulder; and e. locking ring means in the opposite end of said collar for retaining said sleeve in said collar, said rod holder being sealingly securable in the laser head defining said cavity, said metallic band shielding said O-ring from radiation in said cavity and rod.
Claim 5
Dependent Claim
23 words
The subject matter of claim 2, including a similar means for sealing the opposite end of said laser rod in said laser head
Claim 6
Dependent Claim
23 words
The subject matter of claim 2, in which said metallic band comprises a base film of platinum covered by an overcoating of nickel.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |