06293358 is referenced by 11 patents and cites 11 patents.

A Moineau machine has an outer tubular member and an inner tubular member mounted in the outer tubular member whereby the inner tubular member is movable in the axial direction of the outer tubular member but is axially securable in a desired position relative to the outer tubular member. The inner tubular member has an inner surface. An inner elastomer lining is fixedly connected to the inner surface. The inner tubular member has a wall thickness smaller than the outer tubular member. The inner tubular member has opposed ends wherein at least one of the opposed ends is sealed relative to the inner wall of the outer tubular member.

Title
Machine operating according to the Moineau-Principle for the use in deep drilling
Application Number
9/336466
Publication Number
6293358 (B1)
Application Date
June 18, 1999
Publication Date
September 25, 2001
Inventor
Sebastian Jäger
Hannover
US
Agent
R W Becker & Associates
US
Agent
R W Becker
US
Assignee
Artemis Kautschuk und Kunstofftechnik & Cie
US
IPC
E21B 4/00
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