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:
Oct. 18, 1994
Filed:
Oct. 06, 1993
Applicant:
Inventor:
Jan H Dekker, Hoogeveen, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47L / ;
U.S. Cl.
CPC ...
15319 ; 15339 ;
Abstract
An apparatus, for example a vacuum cleaner, is provided which comprises an electric motor with variable motor power, a control circuit for controlling the variable motor power, and a vacuum chamber for generating a partial vacuum by means of the electric motor and, the control circuit being effective to temporarily increase the variable motor power to a power level above a nominal motor power in dependence upon the partial vacuum generated in the vacuum chamber.