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:
Feb. 23, 2010
Filed:
Jan. 04, 2008
Yuk Cheung AU, Kwai Chung, HK;
Kin Yik Hung, Kwai Chung, HK;
Wing Chiu Derek Lai, Kwai Chung, HK;
Pak Kin Leung, Kwai Chung, HK;
Cheuk Wah Chester Tang, Kwai Chung, HK;
Wai Lam, Kwai Chung, HK;
Yuk Cheung Au, Kwai Chung, HK;
Kin Yik Hung, Kwai Chung, HK;
Wing Chiu Derek Lai, Kwai Chung, HK;
Pak Kin Leung, Kwai Chung, HK;
Cheuk Wah Chester Tang, Kwai Chung, HK;
Wai Lam, Kwai Chung, HK;
ASM Assembly Automation Ltd., Hong Kong, HK;
Abstract
A linear motor comprising a coil assembly and a magnet assembly is provided with a cooling apparatus which comprises a segmented air knife assembly. The segmented air knife assembly has a plurality of slot openings distributed along its length which is coupled to the linear motor and it is operative to discharge cooling air into a gap between the coil assembly and magnet assembly in a discharge direction. An inclined surface extends from the plurality of slot openings and slopes at an obtuse angle away from the discharge direction of the cooling air. Each slot opening is individually configured to discharge the cooling air in the discharge direction at a sufficient velocity so as to entrain atmospheric air along the inclined surface to amplify the cooling air that is so discharged.