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:
Jul. 27, 1999
Filed:
Aug. 08, 1997
Masayuki Ogasawara, Shizuoka-ken, JP;
Usui Kokusai Sangyo Kabushiki Kaisha, Ltd., Shizuoka-ken, JP;
Abstract
A plastic fan is composed of a plastic-made fan portion and a metal-made insert portion integrally embedded in the plastic-made fan portion. The fan portion is formed of fan blades and a fan boss. The insert portion is formed of a ring-shaped flat base portion and a bent portion extending upright from an outer peripheral edge of the base portion and having a substantially ring-shaped configuration in plan and a flattened U-shaped configuration in cross-section. The insert portion defines lock holes arranged at predetermined intervals in an outer peripheral portion of the metal-made insert portion and extending through the metal-made insert portion from an outer side thereof to an inner side thereof. The inner peripheral edge portion of each of the lock holes is formed of a smooth flat surface on at least one of the outer side and the inner side of the metal-made insert portion.