US4892379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber optic connector
Assignee: Amphenol Corp
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Filing: 1984-06-25
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Granted: 1990-01-09
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Expires: 2004-06-25
Abstract
Abstract An adaptor for a fiber optic connector of the type which utilizes a split sleeve to align ferrules from oppositely facing connectors. The sleeve has a longitudinal slit and the ferrules receive the optical fiber. A tubularly shaped elastic body is installed around the outer periphery of the split sleeve, the body applying a spring force to the periphery of the split sleeve.
Inventors
- 👤 Mitsuru Takeda
- 👤 Koji Mizunuma
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:26
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/36; G02B6/38; G02B6/3807; G02B6/3873; G02B6/3874; G02B6/3877
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
128 words
In a fiber optic connector assembly in which two fiber optic connectors are connected to each other by means of an adaptor, each of the connectors including at least one ferrule, said ferrules retaining an optical fiber, and said ferrules being inserted in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, the adaptor including at least one split sleeve for receiving at its opposite ends a ferrule from each of said connectors, said split sleeve having a longitudinal slit, the improvement comprising: a tubularly shaped elastic body installed around the outer periphery of said split sleeve, said body applying a spring force to the periphery of said split sleeve.
Claim 2
Dependent Claim
128 words
In a fiber optic connector assembly in which two fiber optic connectors are connected to each other by means of an adaptor, each of the connectors including at least one ferrule, said ferrules retaining an optical fiber, and said ferrules being inserted in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, the adaptor including at least one split sleeve for receiving at its opposite ends a ferrule from each of said connectors, said split sleeve having a longitudinal slit, the improvement comprising: a tubularly shaped elastic body installed around the outer periphery of said split sleeve, said body applying a spring force to the periphery of said split sleeve.
Claim 3
Dependent Claim
16 words
The connector assembly of claim 1 wherein said tubularly shaped elastic body comprises a plastic tube.
Claim 4
Dependent Claim
23 words
The connector assembly of claim 2 wherein the internal diameter of said tube is smaller than the outer diameter of said split sleeve.
Claim 5
Dependent Claim
17 words
The connector assembly of claim 2 wherein said plastic tube is formed from a heat shrinkable material.
Claim 6
Dependent Claim
14 words
The connector assembly of claim 4 wherein said plastic tube is a polyolefin tube.
Claim 7
Dependent Claim
16 words
The connector assembly of claim 1 wherein said tubularly shaped elastic body comprises a rubber tube.
Claim 8
Dependent Claim
23 words
The connector assembly of claim 6 wherein the internal diameter of said tube is smaller than the outer diameter of said split sleeve.
Claim 9
Dependent Claim
21 words
The connector assembly of claim 1 wherein said adaptor includes an internal bore, said split sleeve being positioned in said bore.
Claim 10
Dependent Claim
112 words
In an adaptor for connecting two fiber optic connectors, each of the connectors including at least one ferrule, said ferrules retaining an optical fiber, said ferrules being insertable in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, said adaptor including an internal bore, and a generally cylindrical sleeve positioned in said bore to receive said ferrules from said connectors, said sleeve having a longitudinal slit, the improvement comprising: a tubularly shaped elastic body installed around the outer periphery of said sleeve, said body applying a spring force to the periphery of said sleeve.
Claim 11
Dependent Claim
112 words
In an adaptor for connecting two fiber optic connectors, each of the connectors including at least one ferrule, said ferrules retaining an optical fiber, said ferrules being insertable in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, said adaptor including an internal bore, and a generally cylindrical sleeve positioned in said bore to receive said ferrules from said connectors, said sleeve having a longitudinal slit, the improvement comprising: a tubularly shaped elastic body installed around the outer periphery of said sleeve, said body applying a spring force to the periphery of said sleeve.
Claim 12
Dependent Claim
15 words
The adaptor of claim 9 wherein said tubularly shaped elastic body comprises a plastic tube.
Claim 13
Dependent Claim
17 words
The adaptor of claim 10 wherein said tube is smaller than the outer diameter of said sleeve.
Claim 14
Dependent Claim
16 words
The adaptor of claim 10 wherein said plastic tube is formed from a heat shrinkable material.
Claim 15
Dependent Claim
8 words
The adaptor of claim 12 wherein said plastic
Claim 16
Dependent Claim
15 words
The adaptor of claim 9 wherein said tubularly shaped elastic body comprises a rubber tube.
Claim 17
Dependent Claim
21 words
The adaptor of claim 14 wherein the internal diameter of said tube is smaller than the outer diameter of said sleeve.
Claim 18
Dependent Claim
167 words
In a fiber optic connector assembly in which two fiber optic connectors are connected to each other by means of an adaptor, each of the connectors including at least one ferrule, said ferrule retaining an optical fiber, and said ferrules being inserted in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, the adaptor including at least one split sleeve for receiving at opposite ends a ferrule from each of said connectors, said split sleeve having a longitudinal slit, the improvement comprising: said adaptor including an internal bore with said split sleeve positioned in said bore; and a tubularly shaped elastic body installed around the outer periphery of said split sleeve, said body applying a spring force to the periphery of said split sleeve and said body having an internal diameter smaller than the outer diameter of said split sleeve to thereby apply said spring force when mounted thereon.
Claim 19
Dependent Claim
167 words
In a fiber optic connector assembly in which two fiber optic connectors are connected to each other by means of an adaptor, each of the connectors including at least one ferrule, said ferrule retaining an optical fiber, and said ferrules being inserted in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, the adaptor including at least one split sleeve for receiving at opposite ends a ferrule from each of said connectors, said split sleeve having a longitudinal slit, the improvement comprising: said adaptor including an internal bore with said split sleeve positioned in said bore; and a tubularly shaped elastic body installed around the outer periphery of said split sleeve, said body applying a spring force to the periphery of said split sleeve and said body having an internal diameter smaller than the outer diameter of said split sleeve to thereby apply said spring force when mounted thereon.
Claim 20
Dependent Claim
26 words
The connector assembly of claim 16 wherein said elastic body comprises a tube made of a cross-linked polyolefin which was heat shrunk onto said split sleeve.
Claim 21
Dependent Claim
19 words
The connector assembly of claim 16 wherein said elastic body comprises a tube made of an ethylene propylene rubber.
Claim 22
Dependent Claim
140 words
In an adaptor for connecting two fiber optic connectors, each of the connectors including at least one ferrule, said ferrules retaining an optical fiber, said ferrules being insertable in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, the improvement comprising: said adaptor including an internal bore with a generally cylindrical sleeve positioned in said bore to receive said ferrules from said connectors and with said sleeve having a longitudinal slit; and a tubularly shaped elastic body installed around the outer periphery of said sleeve, said body applying a spring force to the periphery of said sleeve and said body having an internal diameter smaller than the outer diameter of said split sleeve to thereby apply said spring force when mounted thereon.
Claim 23
Dependent Claim
140 words
In an adaptor for connecting two fiber optic connectors, each of the connectors including at least one ferrule, said ferrules retaining an optical fiber, said ferrules being insertable in said adaptor such that the optical fiber of each connector is arranged in a light transmitting position with respect to the optical fiber of the other connector, the improvement comprising: said adaptor including an internal bore with a generally cylindrical sleeve positioned in said bore to receive said ferrules from said connectors and with said sleeve having a longitudinal slit; and a tubularly shaped elastic body installed around the outer periphery of said sleeve, said body applying a spring force to the periphery of said sleeve and said body having an internal diameter smaller than the outer diameter of said split sleeve to thereby apply said spring force when mounted thereon.
Claim 24
Dependent Claim
25 words
The adaptor of claim 19 wherein said elastic body comprises a tube made of a cross-linked polyolefin which was heat shrunk onto said split sleeve.
Claim 25
Dependent Claim
18 words
The adaptor of claim 19 wherein said elastic body comprises a tube made of an ethylene propylene rubber.
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) | 1993-01-08 | 1993-07-10 | 1994-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-01-08 | 1997-07-10 | 1998-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-01-08 | 2001-07-10 | 2002-01-09 | $7700.00 | Window Closed / Lapsed |