×

Composite shell for protecting an antenna of a formation evaluation tool

  • US 5,212,495 A
  • Filed: 07/25/1990
  • Issued: 05/18/1993
  • Est. Priority Date: 07/25/1990
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device for protecting an antenna of a formation evaluation tool, said tool including a cylindrical housing, said housing having an outer surface and having a circumferential groove defined in said outer surface, said antenna surrounding said housing and being secured within said circumferential groove, comprising:

  • an elastomeric layer within said groove and surrounding said antenna, said elastomeric layer having an outer surface of a first predetermined contour;

    a rigid, abrasion resistant and electrically nonconductive shell means for covering said elastomeric layer, said shell means having an inner surface of a second predetermined contour complementary to said first predetermined contour for maintaining at least portions of said elastomeric layer in sealing contact with said housing and said shell means comprising a pair of wall portions wherein each wall portion includes an inner surface and an outer surface, and means for equalizing pressure between the inner surface of said wall portion and the outer surface of said wall portion; and

    means for removably securing said shell means to said housing.

View all claims
  • 7 Assignments
Timeline View
Assignment View
    ×
    ×