Electrical connector fitting

• US 5,321,205 A
• Filed: 01/15/1993
• Issued: 06/14/1994
• Est. Priority Date: 01/15/1993
• Status: Expired due to Term

• Current Assignee: Thomas & Betts Corporation (ABB Limited)
• Original Assignee: Thomas & Betts Corporation (ABB Limited)
• Inventors: Mancini, Giacomo J., Bawa, Jaspal S., Couto, Luis R.
• Primary Examiner(s): Broome, Harold
• Application Number:
  US08/006,006
• Time in Patent Office: 515 Days
• Field of Search: 174/65 SS, 285/330, 285/92
• US Class Current: 174/655
• CPC Class Codes: H02G 15/04 Cable-end sealings
• CPC Class Codes: H02G 3/0666 with means clamping the armour of the conductor H02G3/0675, H02G3/0683 take precedence

Abstract

A connector for terminating a metal clad electrical cable is suitable for use in hazardous locations. The connector includes an elongate generally cylindrical body having a cable receiving end, a conductor egressing end, and a central axial bore therethrough. An elongate generally cylindrical hub accommodates the body. The hub has a body receiving end, a conductor egressing end, and a central axial bore therethrough. A cable seal is provided by a sealing bushing and a gland nut which is rotatably coupled to the cable receiving end of the body, sealingly coupling the cable to the body. The body and the hub include cooperative engagement elements for preventing the relative rotation of the hub and the body upon rotatably coupling the gland nut to the body about the cable.

Claims

1. A connector for terminating an electrical cable having an insulative jacket and plural conductors extending therethrough comprising;

an elongate generally cylindrical body having a cable receiving end, a conductor egressing end, and a central axial bore extending therethrough;

an elongate, generally cylindrical body accommodating hub having a body receiving end, a conductor egressing end, and a central axial bore extending therethrough, said bore of said hub being axially aligned with said bore of said body; and

,

cable sealing means rotatably coupled to said cable receiving end of said body for sealingly coupling said cable to said body;

said body and said hub including cooperative engagement means for preventing relative axial rotation of said hub and said body upon said rotatable coupling of said sealing means to said body.

2. A connector of claim 1 wherein said cooperative engagement means includes said body having a splined member on an external surface thereof and said hub having a splined member on an internal surface thereof, said splined member of said body and said splined member of said hub being interengageable to prevent said relative rotation of said body within said hub.

3. A connector of claim 2 wherein said splined member of said body includes spaced raised projections extending circumferentially around said external surface adjacent said conductor egressing end thereof and wherein said splined member of said hub includes spaced raised projections extending circumferentially around said internal surface adjacent said body receiving end thereof, said projections of one of said body and said hub residing within spaces formed between said projections of the other of said body and said hub.

4. A connector of claim 3 wherein said sealing means includes a gland nut rotatably securable to said cable receiving end of said body and a sealing member positioned between said body and said gland nut for sealable engagement with said cable upon said rotatable coupling of said gland nut to said body.

5. A connector of claim 4 wherein said sealing member includes an annular bushing positionable about said insulative jacket of said cable for frictional engagement therewith upon rotatable securement of said gland nut to said body.

6. A connector of claim 5 wherein said cable receiving end of said body is externally screw threaded and said gland nut is internally screw threaded for screw accommodation with said body.

7. A connector of claim 6 further including coupling means for securably connecting said body to said hub.

8. A connector of claim 7 further including hub sealing means for sealing the connection of said body to said hub.

9. A connector of claim 8 wherein said hub sealing means includes a hub sealing ring positioned about said external surface of said body and engageable with a surface of said hub for forming a seal thereat.

10. A connector of claim 9 further including an elongate generally cylindrical sealing sleeve having a body accommodating end, a hub accommodating end, and an axial bore extending therethrough said sealing sleeve permitting passage of said conductors therethrough, said sealing sleeve further accommodating a sealing compound therein to seal said conductors in said sealing sleeve.