RACEWAY TERMINATOR

• US 3,603,912 A
• Filed: 08/25/1969
• Issued: 09/07/1971
• Est. Priority Date: 08/25/1969
• Status: Expired due to Term

• Current Assignee: William E. Kelly
• Original Assignee: William E. Kelly
• Inventors: Kelly, William E.
• Primary Examiner(s): McGlynn, Joseph H.
• Application Number:
  US04/852,863
• Time in Patent Office: 743 Days
• Field of Search: 339/14,89,177 174/65SS,78
• US Class Current: 439/273
• CPC Class Codes: H02G 3/0616 Joints for connecting tubing to casing

Abstract

A raceway terminator for coupling a jacketed flexible metallic raceway to an electrical enclosure comprising a body portion, a gland nut for assembly therewith, a grounding cone and a sealing ring. The sealing ring has tapered leading and trailing edges and an annular shoulder thereabout which cooperate with an annular rib on the gland nut to provide for the holding of the jacketed flexible metallic raceway as well as providing a moisture seal therebetween and preventing abrasion of the jacket of the raceway by the terminator.

Claims

1. In a connector for coupling a flexible metallic conduit to an electrical enclosure, said coupling having a body member, a gland nut, and a grounding cone therebetween, each having a longitudinal passage therethrough for receiving said conduit therein, said body member having an externally threaded portion adjacent one end thereof and said gland nut having an internally threaded portion for assembly with said externally threaded portion of said boy member, the improvement comprising:

a tapered annular ring disposed in said longitudinal passage at the end of said gland nut remote from said internally threaded portion; and

a deformable sealing ring having a tapered leading edge, a tapered trailing edge, and a longitudinal passage therethrough to accept said conduit therein;

said sealing ring being positionable intermediate said grounding cone and said gland nut tapered annular ring;

said tapered leading edge of said sealing ring being arranged to bear against said grounding cone;

said gland nut tapered annular ring being arranged to bear directly against said tapered trailing edge of said sealing ring, the inside diameter of said tapered annular ring being proportioned to accept at least a portion of said sealing ring tapered trailing edge between the inner edge of said tapered annular ring and the outer surface of a conduit positioned therein, wherein upon the assembly of said gland nut to said body member with said cone, ring and conduit therein, said tapered annular ring is caused to intimately bear against a portion of said sealing ring tapered trailing edge, to urge said tapered trailing edge into engagement with the adjacent surface of the conduit positioned therebetween, forming a moisture seal thereat.

2. The improvement as defined in claim 1 wherein the taper of said tapered annular ring is formed substantially complementary of the taper of said sealing ring trailing edge to provide intimate mating cooperable engagement between the respective contacting surfaces thereof, forming a moisture seal therebetween.

3. The improvement as defined in claim 1 wherein said sealing ring has an annular ring about its outer surface intermediate said tapered lading and trailing edges;

said annular ring having leading and trailing shoulders adjacent respectively said leading and trailing tapered edges;

said leading shoulder engaging the adjacent end of said body member, forming a moisture seal therebetween.

4. The improvement as defined in claim 3 wherein said trailing shoulder engages said annular ring of said gland nut, forming a moisture seal therebetween.