USH491H
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optic attenuator
Assignee: United States Department of the Army
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Filing: 1987-10-23
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Granted: 1988-07-05
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Expires: 2007-10-23
Abstract
Abstract A fiber optic attenuator in which male and female members connect a fiber detector means with an attenuator member mounted between the end of the fiber and the detector for reducing the signal from the fiber before arriving at the detector to reduce the signal arriving at the detector sufficient to prevent the detector from becoming saturated and making it impossible to recover the video signal transmitted through the fiber.
Inventors
- 👤 Michael C. Pitruzzello
- 👤 Carolyn S. Randles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:21
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/264; G02B6/266; G02B6/32; G02B6/42; G02B6/4201; G02B6/4204
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
116 words
A fiber optic attenuator having male and female connector members, said male connector member having an opening therethrough with a detector mounted at one end of said opening and internally of said male connector member, and means for focusing energy from a fiber onto said detector, said female connector member being connected to one end of a fiber and having fastening means for securing said female connector member to said male connector member with the fiber mounted in said male connector member, and an attenuator member mounted in said male connector member between one end of said fiber and said focusing means for attenuating and reducing signal emanating from said fiber and before reaching said detector.
Claim 2
Dependent Claim
116 words
A fiber optic attenuator having male and female connector members, said male connector member having an opening therethrough with a detector mounted at one end of said opening and internally of said male connector member, and means for focusing energy from a fiber onto said detector, said female connector member being connected to one end of a fiber and having fastening means for securing said female connector member to said male connector member with the fiber mounted in said male connector member, and an attenuator member mounted in said male connector member between one end of said fiber and said focusing means for attenuating and reducing signal emanating from said fiber and before reaching said detector.
Claim 3
Dependent Claim
35 words
A fiber optic attenuator as set forth in claim 1, wherein said attenuator member is made of fused silica and has metal on the surface thereof to reduce attenuation of energy emanating from said fiber.
Claim 4
Dependent Claim
15 words
A fiber optic attenuator as set forth in claim 2, wherein said metal is aluminum.
Claim 5
Dependent Claim
20 words
A fiber optic attenuator as set forth in claim 3, wherein said focusing means is a lens and a window.
Claim 6
Dependent Claim
52 words
A fiber optic attenuator as set forth in claim 4, wherein said attenuator member is a disk and has a uniform thickness with one surface of said disk contacting a surface of said opening through the male connector member and the other surface of said disk contacting an end of said fiber.
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) | 1991-07-05 | 1992-01-04 | 1992-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-07-05 | 1996-01-04 | 1996-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-07-05 | 2000-01-04 | 2000-07-05 | $7700.00 | Window Closed / Lapsed |