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. 20, 1990
Filed:
Oct. 14, 1986
Applicant:
Inventors:
Russell McDonald, Rochester, NY (US);
John A Wargo, Macedon, NY (US);
Glenn M Herbert, Rochester, NY (US);
Kenneth P Moore, Rochester, NY (US);
John D Gramlich, Webster, NY (US);
Assignee:
Xerox Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D / ;
U.S. Cl.
CPC ...
415143 ; 415 99 ; 415912 ;
Abstract
A multifunction blower in which a common housing is employed to both increase and decrease the pressure of incoming air in separate chambers thereof. The increase and decrease in air pressure is adjustable by changing the impellers of the pressure and vacuum assemblies used therein.