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:
Sep. 07, 1999
Filed:
Aug. 21, 1996
Sung-Dai Moon, Kyeonsangbook-Do, KR;
Daewoo Electronics Co., Ltd., Seoul, KR;
Abstract
A pump housing and manufacturing method therefor includes a primary molding for injecting halves of the pump housing and a secondary molding for assembling the primary molds to each other to be installed to the interior of a secondary metal mold and secondarily-molding the outer surface of the pump housing without requiring core fabrication, installation and removal steps of the injection molding. Thus, the core fabrication and core removal steps heretofore required for an inlet or undercut are unnecessary for enabling swift mass production and lowering difficulty of working to make the quality consistent and decrease inferior products, thereby reducing the manufacturing cost.