Coupling bushing for various types of optical fiber connectors

• US 5,073,042 A
• Filed: 07/27/1990
• Issued: 12/17/1991
• Est. Priority Date: 06/21/1990
• Status: Expired due to Term

• Current Assignee: AMP Incorporated (Johnson Controls International plc)
• Original Assignee: AMP Incorporated (Johnson Controls International plc)
• Inventors: Warner, Gary N., Schaffer, Ronald R., Mulholland, Denis G.
• Primary Examiner(s): Lee, John D.
• Assistant Examiner(s): Ngo, John
• Application Number:
  US07/558,932
• Time in Patent Office: 508 Days
• Field of Search: 350/96.2, 350/96.21, 350/96.22
• US Class Current: 385/69
• CPC Class Codes: G02B 6/3825 with an intermediate part, e.g. adapter, receptacle, linking two plugs
• CPC Class Codes: G02B 6/3888 Protection from over-extension or over-compression
• CPC Class Codes: G02B 6/3893 Push-pull type, e.g. snap-in, push-on
• CPC Class Codes: G02B 6/3897 Connectors fixed to housings, casing, frames or circuit boards G02B6/44528 takes precedence
• CPC Class Codes: G02B 6/4292 the light guide being disconnectable from the opto-electronic element, e.g. mutually self aligning arrangements

Abstract

A coupling bushing 1 for optical fiber connectors comprises a first half structure 1A comprising a base 14 having an axial bore 16 and a socket 15 extending from tlhe rear 21 of the base 14. The socket 15 has a bore 16 axially aligned with the bore of the base 14 to form an extension thereof. The socket 15 is adapted to receive an alignment ferrule of the optical fiber connector. The half structure 1A further comprises, at its front face 20, a pattern of ridges 24 and slots 25 forming keying and aligning feature for intermating with complementary feature of another connecting base. Further, the half structure 1A includes at least one recess 23 and at least one nub 22 forming aligning features for intermating with complementary features of another connecting base. The half structure 1A further comprises a barrel-shaped coupling body 17 extending from the rear face 21 of the base 14 and encompassing the socket 15 within its interior 18. The interior 18 of the coupling body 17, is adapted to receive an end of the optical fiber connector.

Claims

1. A coupling busing for an optical fiber connector, the connector including a central passageway, an alignment ferrule, and an optical fiber, the coupling busing comprising a half structure, said half structure comprising:

a base having a profiled axial bore;

a socket extending from a rear of the base and having a bore axially aligned with the bore of the base to form an extension thereof and adapted to receive an alignment ferrule of said optical fiber connector;

at a front face of the half structure, a pattern of ridges and slots forming a keying feature for intermating with a complementary feature of another connecting base;

at least one recess and at least one nub forming aligning and orienting features for intermating with complementary aligning and orientation features of the connecting base; and

a barrel-shaped coupling body extending from a rear face at the rear of said base and encompassing the socket within an interior of the socket, said interior being adapted to receive an end of the optical fiber connector.

2. The coupling bushing of claim 1 wherein said barrel-shaped housing is threaded at its outer surface for intermating with a threaded type of optical fiber connector.

3. The coupling bushing of claim 1 wherein said barrel-shaped housing has latching nub and slot for intermating with a bayonet type of optical fiber connector.

4. An intermated coupling bushing comprising a first half structure section and a second half structure, each according to the structure of claim 1, the first and second half structures intermated one to the other, front face to front face, by complementary fit of the pattern of ridges and slots of the first half structure to the pattern of ridges and slots of the second half structure, and further by complementary fit of at least one nub of one structure to the at least one recess of the other structure.

5. An intermated coupling bushing comprising a first half structure section and a second half structure, each according to the structure of claim 2, the first and second half structures intermated one to the other, front face to front face, by complementary fit of the pattern of ridges and slots of the first half structure to the pattern of ridges and slots of the second half structure, and further by complementary fit of at least one nub of one structure of the at least one recess of the other structure.

6. An intermated coupling bushing comprising a first half structure section and a second half structure, each according to the structure of claim 3, the first and second half structures intermated on to the other, front face to front face, by complementary fit of the pattern of ridges and slots of the first half structure to the pattern of ridges and slots of the second half structure, and further by complementary fit of at least one nub of one structure to the at least one recess of the other structure.

7. An intermated coupling bushing for optical fiber connectors, the connectors including central passageway, alignment ferrule and optical fiber;

the coupling bushing comprising a first half structure according to claim 3 and a second half structure comprising a base having profiled axial bore, and a socket extending from the rear of said base and having bore axially aligned with the bore of the said base to form an extension thereof and adapted to receive an alignment ferrule of said optical fiber connector, the second half structure further comprising;

at its front face, a pattern of ridges and slots forming a keying feature for intermating with complementary feature of another connecting base, and at least one recess and at least one nub forming aligning and orienting features for intermating with complementary features of said another connecting base, said second half structure further comprising;

a barrel-shaped coupling body extending from a rear face of said base and encompassing the said socket within its interior which is adapted to receive an end of the optical fiber connector, said barrel-shaped housing being threaded at its outer surface for intermating with a threaded type of optical fiber connector;

the first and second half structure intermated one to the other, front face to front face, by complementary fit of the pattern of ridges and slots of the first structure to the pattern of ridges and slots of the second structure, and further by complementary fit of at least one nub of one half structure to the at least one recess of the other half structure.

8. A coupling busing for an optical fiber connector, the connector including a central passageway, an alignment ferrule, and an optical fiber, the coupling bushing comprising a half structure, said half structure comprising:

a base having a profiled axial bore;

a socket extending from a rear of the base and having a bore axially aligned with the bore of the base to form an extension thereof and adapted to receive an alignment ferrule of said optical fiber connector;

at a front face of the half structure, a pattern of ridges and slots forming a keying feature for intermating with a complementary features of another connecting base;

at least one recess and at least one nub forming aligning and orienting features for intermating with complementary aligning and orienting features of the connecting base; and

a receptacle housing having a receptacle thereon, said receptacle having two catch pieces of cantilever form extending from the base parallel to and an opposing sides of a longitudinal axis of the socket of said base and terminating in protrusions and lip structures for intermating with a push-pull type of optical fiber connector.

9. An intermated coupling bushing comprising a first half structure section and a second half structure, each according to the structure of claim 8, the first and second half structures intermated one to the other, front face to front face, by complementary fit of the pattern of ridges and slots of the first half structure to the pattern of ridges and slots of the second half structure, and further by complementary fit of at least one nub of one structure to the at least one recess of the other structure.

10. An intermated coupling bushing comprising a first half structure section and a second half structure, each according to the structure of claim 8, the first and second half structures intermated one to the other, front face to front face, by complementary fit of the pattern of ridges and slots of the first half structure to the pattern of ridges and slots of the second half structure, and further by complementary fit of at least one nub of one structure to the at least one recess of the other structure.

11. An intermated coupling bushing for optical fiber connectors, the connectors including central passageway, alignment ferrule and optical fiber;

the coupling busing comprising a first half structure according to claim 8 and a second half structure comprising a base having profiled axial bore, and a socket extending from the rear of said base and having bore axially aligned with the bore of the said base to form an extension thereof and adapted to receive an alignment ferrule of said optical fiber connector, the second half structure further comprising;

at its front face, a pattern of ridges and slots forming a keying feature for intermating with complementary feature of another connecting base, and at least one recess and at least one nub forming aligning features for intermating with complementary features of said another connecting base, said second half structure further comprising;

a barrel-shaped coupling body extending from a rear face of said base and encompassing the said socket within its interior which is adapted to receive an end of the optical fiber connector, said barrel-shaped housing having latching nub and slot for intermating with a bayonet type of optical fiber connector;

the first and second half structures intermated one to the other, front face to front face, by complementary fit of the pattern of ridges and slots of the first structure to the pattern of ridges and slots of the second structure, and further by complementary fit of at least one nub of one half structure to the at least one recess of the other half structure.

12. An intermated coupling bushing according to claim 9, 4, 5, 6, 10, 7, or 11, wherein said sockets of the said intermated half structures define a common axial bore and wherein said bushing further includes a sleeve for receiving the alignment ferrule of the connector and said sleeve captivated within the said common axial bore of the sockets.