Patent ID: 6067395
Filing Date: 2000-05-23
Classification: H02G

Abstract:
A seal device for a bulkhead feedthrough assembly guiding a plurality of leads through a bulkhead via the feedthrough assembly, the seal device comprising:a seal member adapted to fit in a seat in a bulkhead feedthrough assembly, the seal member having an outer flat end face spaced from an outer end of the seat, and having outer dimensions in an unstressed condition which are greater than the respective dimensions of the seat in which it is to be fitted;the seal member having a plurality of cylindrical through bores equal in number to the number of leads to be fed through the feedthrough assembly, each bore being of uniform diameter along its length and having an unstressed diameter less than the diameter of the respective lead, each through bore comprising means for sealing directly against the smooth outer surface of a lead comprising an electrical wire or optical fiber with the lead extending completely through the seal member and beyond its outer end face; anda back-up bushing adapted to fit in the seat in the bulkhead feedthrough assembly adjacent the seal member and between the flat end face of the seal member and the outer end of the seat, the bushing having a flat inner end face in face-to-face engagement with the flat end face of the seal member, the bushing having the same number of through bores as the seal member, the bushing bores being positioned for alignment with the seal member bores, and each having a diameter substantially equal to the outer diameter of the lead, whereby each lead can be fed completely through a respective pair of aligned bores in the seal member and back-up bushing.