Patent US5210815A successfully refreshed from Google Patents.
US5210815A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed optical fiber feedthrough
Assignee: G&H Technology Inc
•
Filing: 1992-04-09
•
Granted: 1993-05-11
•
Expires: 2012-04-09
Abstract
Abstract An optical fiber feedthrough (20,24) for passing through a panel (10) and maintaining a sealed relationship between different fluid environments existing on opposite sides of the panel. A guide tube (25) secured within an opening (44) in the panel (10) by a glass seal (46). The end portions of two fibers (16, 18) to be interconnected through the panel are secured within individual termini (28,42) with the latter located within the guide tube (25) and sealed by O-rings (50,56) against fluid passage therethrough.
Inventors
- 👤 Wasserman Alexander
- 👤 Kucherov Yakov
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:01
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/42; G02B6/4201; G02B6/4248; G02B6/26; G02B6/262; G02B6/32; G02B6/36; G02B6/38; G02B6/3807; G02B6/381; G02B6/3825
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
188 words
A panel opening feedthrough device for first and second optical fibers located on opposite sides of the panel, comprising: a guide tube sealed within the panel opening with its two ends located on opposite sides of the panel, said tube having an integral annular flange on its inner wall with a central opening therethrough; a separate terminus provided on the end of each optical fiber; a first sleeve press fit into an end of the guide and abutting against one side of the guide tube flange, the internal bore being such as to enable fitting receipt of the terminus of one of the fibers; a first annular sealing means abutting against the flange other side; first lens means having a first surface contacting the first annular sealing means; a second annular sealing means contacting a further surface of the first lens means; first washer spacer contacting the second annular sealing means; second lens means contacting the first washer spacer; second washer spacer contacting the second lens means; and a second sleeve press fit into the guide tube against the second washer spacer for receiving the other terminus therein.
Claim 2
Dependent Claim
188 words
A panel opening feedthrough device for first and second optical fibers located on opposite sides of the panel, comprising: a guide tube sealed within the panel opening with its two ends located on opposite sides of the panel, said tube having an integral annular flange on its inner wall with a central opening therethrough; a separate terminus provided on the end of each optical fiber; a first sleeve press fit into an end of the guide and abutting against one side of the guide tube flange, the internal bore being such as to enable fitting receipt of the terminus of one of the fibers; a first annular sealing means abutting against the flange other side; first lens means having a first surface contacting the first annular sealing means; a second annular sealing means contacting a further surface of the first lens means; first washer spacer contacting the second annular sealing means; second lens means contacting the first washer spacer; second washer spacer contacting the second lens means; and a second sleeve press fit into the guide tube against the second washer spacer for receiving the other terminus therein.
Claim 3
Dependent Claim
25 words
A panel opening feedthrough device as in claim 1, in which the guide tube is sealed within the panel opening by a body of glass.
Claim 4
Dependent Claim
17 words
A panel opening feedthrough device as in claim 1, in which the annular sealing means are O-rings.
Claim 5
Dependent Claim
44 words
A panel opening feedthrough device as in claim 1, in which each terminus includes a ferrule with a passage of cross-section to receive the optical fiber with cladding and an opening in an end wall for fittingly receiving the bare core of the fiber.
Claim 6
Dependent Claim
24 words
A panel opening feedthrough device as in claim 1, in which the fluid environments on opposite sides of the panel differ from one another.
Claim 7
Dependent Claim
61 words
A passthrough device sealed within a panel opening for a pair of separable optical fiber termini optically interrelated by lens means, comprising: a hollow open-ended guide tube sealed within the panel opening and respectively receiving the optical termini within opposite ends; and annular means located within the guide tube between the termini for sealing the guide against passage of fluid therethrough.
Claim 8
Dependent Claim
61 words
A passthrough device sealed within a panel opening for a pair of separable optical fiber termini optically interrelated by lens means, comprising: a hollow open-ended guide tube sealed within the panel opening and respectively receiving the optical termini within opposite ends; and annular means located within the guide tube between the termini for sealing the guide against passage of fluid therethrough.
Claim 9
Dependent Claim
32 words
A passthrough device as in claim 6, in which the guide tube includes an internal flange against which one of the termini abuts forming a positive limit stop for the said termini.
Claim 10
Dependent Claim
27 words
A passthrough device as in claim 7, in which the annular means includes an O-ring that sealingly abuts against the flange and immediately adjacent guide tube surfaces.
Claim 11
Dependent Claim
24 words
A passthrough device as in claim 6, in which each terminus is received within a sleeve which is press fit within the guide tube.
References Cited (Backward Citations)
US3951515A
Cited
US4290667A
Cited
US4345816A
Cited
US4360249A
Cited
US4682846A
Cited
US4759601A
Cited
US4911523A
Cited
US4904046A
Cited
US4859021A
Cited
US4989940A
Cited
EP0402612A1
Cited
US5113475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |