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. 24, 1990
Filed:
Jan. 16, 1989
Applicant:
Inventor:
Richard F Beehler, Franklin, TN (US);
Assignee:
Heil-Quaker Corporation, Lavergne, TN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
4162 / ; 416207 ; 4162 / ;
Abstract
A plastic blower impeller including an integrally formed plastic hub having three axial slots therein equidistantly located around the hub. A bore in the hub includes transverse ribs for engaging with an annular groove in the driving shaft of an electric motor. A flat surface is formed inside the bore for engaging with the corresponding flat surface on the driving shaft of an electric motor. A resilient expandable split metal sleeve engages the exterior surface of the hub.