Coaxial connectors

• US 3,915,539 A
• Filed: 05/31/1974
• Issued: 10/28/1975
• Est. Priority Date: 05/20/1971
• Status: Expired due to Term

• Current Assignee: CSA Ltd (Amphenol Corporation)
• Original Assignee: Brian Stuart Collins
• Inventors: Collins, Brian Stuart
• Primary Examiner(s): Lake, Roy
• Assistant Examiner(s): Bicks, Mark S.
• Application Number:
  US05/474,982
• Time in Patent Office: 515 Days
• Field of Search: 339/48,49R,49B,92R,92M,94C,177RE
• US Class Current: 439/275
• CPC Class Codes: H01R 2103/00 Two poles
• CPC Class Codes: H01R 24/40 specially adapted for high frequency

Abstract

In a coaxial connector, the outer shell and back nut are injection mouldings of synthetic, non-conductive material. A metal sleeve in the shell provides electrical continuity for the outer conductor. The end of the sleeve projects slightly to abut and make connection to the outer conductor of a second, mating connector. This end of the sleeve is sealed against moisture by a surrounding O-ring clamped between the two connectors.

Claims

1. A pair of coaxial cable connectors connected together, each comprising an outer shell terminating in a flange whereby the connector is attached to the other connector, a dielectric body within the outer shell, a contact element for the inner conductor of a coaxial cable supported by the dielectric body, the outer shell being formed from a moulded synthetic, non-conductive material, a metal sleeve lining the interior of the outer shell and forming a conductive path for the outer cable conductor, the sleeve projecting slightly with respect to the end surface of the shell at the flange end, the sleeve being itself unflanged at its projecting end, and sealing means at the end of the shell remote from the flange, said sealing means of the respective connectors together providing a watertight seal for the interior of the connector and preventing access of moisture to the metal sleeves except in the vicinity of the flange, said projecting ends of the two metal sleeves of the respective connectors abutting each other and providing electrical continuity through the sleeves, and a sealing ring clamped between the respective flanges of the two shells around the abutting ends of the sleeves to complete the watertight sealing of the connector and complete the prevention of the access of moisture to the metal sleeves.

2. A coaxial connector for a coaxial cable comprising an outer shell terminating in a flange for attaching the connector to another connector with interposition of a sealing ring, a dielectric body within the outer shell, a contact element for the inner conductor of a coaxial cable supported by the dielectric body, the outer sheLl being formed from a moulded synthetic, non-conductive material, a self-supporting metal sleeve of solid metal lining the interior of the outer shell and forming a conductive path for the outer conductor of the cable, the sleeve projecting axially slightly with respect to the end surface of the shell at the flange end for endwise abutment under pressure with the sleeve of a like connector, the projecting end of said sleeve being supported axially solely by said sleeve itself and being capable of withstanding a compressive load created by said endwise abutment under pressure, and sealing means at the end of the shell remote from the flange providing a watertight seal for the interior of the connector and preventing the access of moisture to the metal sleeve except in the vicinity of the flange, where a similar seal to complete the sealing of the connector is feasible upon attachment of the flange to another connector with interposition of a sealing ring.

3. A coaxial connector for a coaxial cable comprising an outer shell terminating in a flange for attaching the connector to another connector with interposition of a sealing ring, a dielectric body within the outer shell, a contact element for the inner conductor of a coaxial cable supported by the dielectric body, the outer shell being formed from a moulded synthetic, non-conductive material, a metal sleeve lining the interior of the outer shell and forming a conductive path for the outer conductor of the cable, the sleeve projecting slightly with respect to the end surface of the shell at the flange end for endwise abutment with the sleeve of a like connector, and sealing means providing a watertight seal for the interior of the connector and preventing the access of moisture to the metal sleeve, except in the vicinity of the flange, where a similar seal is feasible upon attachment of the flange to another connector, said sealing means comprising a back nut threaded on the end of the shell remote from the flange, and sealing rings within the back nut, the back nut being adapted to compress the sealing rings around the cable, the end of the metal sleeve being flared out to overlay the end surface of the shell remote from the flange and a sealing ring being interposed between the flared out part of the sleeve and the shell.