Bj-Hughes Inc.

Gerald C Eckmann

Randy S Baker

Felix Kuus

An emergency deflation tool intended for use in an inflatable packer system. The mechanism comprises a cylindrical axially extending member adapted to be fixed against axial movement, another hollow cylindrical member surrounding a portion of the length of said member with a vent through the wall thereof, an inflation fluid passageway, and an expendable tension sleeve joining the two members.

Packer deflate subassembly for an inflatable packer system

A valve assembly for use in an inflatable packer system comprising an outer valve member, an inner valve member adapted to move axially relative to said outer valve member when weight is set down on and lifted from the system, and a shifting sleeve which is pumped down by inflation fluid with respect to both said inner and outer valve members to establish an inflation fluid passageway.

Valve assembly for an inflatable packer system

A check/relief valve intended for use in an inflatable packer system. The valve comprises a hollow cylindrical longitudinally extending inner member surrounded by a spring loaded relief piston and a spring loaded check valve poppet, all surrounded by a hollow longitudinally extending outer member.

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La Puente, CA, United States of America

Gerald C Eckmann