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. 28, 1989
Filed:
Feb. 10, 1983
Applicant:
Inventor:
David L Evans, Rodman, NY (US);
Assignee:
The Scott & Fetzer Company, Watertown, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B / ; F04B / ;
U.S. Cl.
CPC ...
4174232 ; 41742314 ; 415119 ; 415211 ;
Abstract
A fan cover for a bypass vacuum motor unit is produced by forming outlet apertures in an intermediate flat blank and thereafter deforming the blank into a pan-shaped structure with the outlet apertures disposed on its cylindrical sidewall. The fan cover affords economies in tooling for its manufacture, uniformity in performance, and reduced noise in operation.
Evans, David. (1989). Vacuum motor fan cover (U.S. Patent No. 4808090). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4808090
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile