Accession Number : ADD003021

Title :   Conical Face-Seal for an Electrical Feedthrough.

Descriptive Note : Patent,


Personal Author(s) : Davis,Sheridan ; Cheever,Donald C

Report Date : 17 Aug 1976

Pagination or Media Count : 6

Abstract : The patent describes a face seal for an electrical feedthrough in a bulkhead subject to large differential pressures, comprising a metallic bolt routed through a hole in the bulkhead; an electrical conductor soldered to the head of the bolt on the high pressure side of the bulkhead; an epoxy-resin seal molded around and bonded to the protruding head of the bolt and having a conical undersurface mating with the bulkhead so that a thin ring forms the interface between the epoxy seal and the bulkhead; and, a nut screwed on to the threaded end of the bolt on the low pressure side of the bulkhead. The thin ring interface between the epoxy seal and the bulkhead deforms when the epoxy seal is subjected to external pressure so that the seal pressure is amplified.

Descriptors :   *Plastic seals, *Patents, Epoxy resins, Bulkheads, Electric conductors, High pressure, Watertight fittings

Subject Categories : Adhesives, Seals and Binders
      Submarine Engineering

Distribution Statement : APPROVED FOR PUBLIC RELEASE