Patent ID: 6162032
Filing Date: 2000-12-19
Classification: F04C,Y10T

Abstract:
An elastomeric stator for an eccentric spiral pump, comprising:a lining made of elastomeric material and having a hollow chamber that serves for accommodating a rotor, wherein said hollow chamber has a double or multiple spiral configuration, and wherein said lining has an essentially uniform thickness over the length of said lining;a rigid casing that surrounds said lining, wherein said casing has an essentially uniform thickness over the length of said casing, and wherein said casing is spiraled in conformity with an inner contour of said hollow chamber of said lining;a respective flange ring secured at each of opposite ends of said casing for resting against other pump parts; andmeans for detachably connecting said flange rings to said other pump parts without having to use tie rods to interconnect such other parts.