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.

Date of Patent:
Feb. 25, 2003

Filed:

Nov. 01, 2001
Applicant:
Inventors:

Shigehiro Kasai, Takasago, JP;

Shoji Yoshimura, Takasago, JP;

Nobuki Nagami, Takasago, JP;

Kazuo Iritani, Takasago, JP;

Katsunori Takahashi, Takasago, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C 2/18 ; F04C 1/500 ;
U.S. Cl.
CPC ...
F04C 2/18 ; F04C 1/500 ;
Abstract

To provide a gear pump for carrying high viscous liquid, which keeps a bearing in a free state and enhances reliability relative to a leakage of cooling medium and a leakage of molten resins. The gear pump in which a pair of gear rotors are supported on a body of the gear pump through a bearing , a cover for preventing the bearing from being slipped out is secured to the body , and a temperature adjusting medium passage is formed in the bearing , wherein an inlet pipe and an outlet pipe to the temperature adjusting medium passage are connected to the axial outer end of the bearing , an intermediate plate is interposed between the axial outer end of the bearing and the cover , the intermediate plate being provided with an insert hole for the inlet pipe and the outlet pipe , the cover being provided with a guide portion having the inlet pipe and the outlet pipe loosely fitted therein to guide them to outside. Further, at least a part of the inlet pipe and the outlet pipe is formed from a flexible member.


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