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. 08, 2004
Filed:
Aug. 02, 2002
Nam-Sung Kim, Suwon, KR;
Samsung Electronics Co., Ltd., Suwon-Si, KR;
Abstract
A turbofan and a mold used to manufacture the same, which enables the turbofan to be integrally molded by a single molding process. The turbofan has a rotating plate coupled to a shaft of a driving motor at its center, a plurality of blades radially disposed at and integrally formed with a periphery of the rotating plate, and a ring-shaped shroud integrally formed with front ends of the blades to face the rotating plate. The mold has a first mold part having a rear molding member to shape a rear portion of the rotating plate; a second mold part to be combined with the first mold part and having a front molding member to shape a front portion of the turbofan at an area corresponding to the rear molding member; a plurality of slide cores adapted to be radially moved to shape an inner surface of the shroud, outer portions of a front surface of the rotating plate, and outer surfaces of the blades; and a plurality of auxiliary cores extending to the inner surface of the shroud from the rear molding member of the first mold part to shape undercut portions of inner surfaces of the blades.