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:
Jun. 10, 1997

Filed:

Oct. 26, 1995
Applicant:
Inventors:

Kosaburo Niwa, Nagoya, JP;

Toshio Egami, Nagoya, JP;

Teruo Abe, Nagoya, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F04C / ; F04C / ;
U.S. Cl.
CPC ...
418 554 ;
Abstract

One or two submarine gates 23 are located at portions of a mold corresponding to one or both ends of a tip seal to be molded. Synthetic resin is injected through the submarine gates 23. When the mold is opened after the synthetic resin is solidified, a molded product is cut off and separated by shearing from a runner 22 at a tip 23a of each of the submarine gates 23. Thus, no convex portion is formed as a gate trace on the end of the tip seal as a molded product when it is cut off. When the tip seal having no convex portion on the end thereof is inserted into the mounting groove of a scroll type compressor, the tip seal exhibits an excellent sealing property. With the aforesaid method, a tip seal excellent in a sealing property can be easily manufactured.


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