The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 1998
Filed:
Sep. 10, 1996
Applicant:
Inventors:
Assignee:
Heishin Sobi Kabushiki Kaisha, Kobe, JP;
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
418 48 ; 418182 ;
Abstract
This disclosure relates to a uniaxial eccentric screw pump. A boss 10a is integrally formed on one end (on the side of a pump casing 8) of the rotor 10, the screw pump 100, and one end of a flexible shaft 9 is inserted in the boss 10a and bonded together with the rotor 10 integrally by means of an adhesive. The flexible shaft 9 is made at least in part from a rod-like member which is extruded from PEEK (polyetheretherketone) which is one of the engineering plastics, into a cylinder. A metal rod 17 is provided in the middle of the flexible shaft in the longitudinal direction, or a metal sleeve is mounted over the outer circumference of the flexible shaft.