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:
Mar. 03, 1998
Filed:
Nov. 18, 1996
Gilles Delmas, Epinay-Sour-Sernart, FR;
Johannes A Driessen, Nieuweroord, NL;
U.S. Philips Corporation, New York, NY (US);
Abstract
A vacuum cleaner has: an air outlet, an air inlet, a dust chamber in communication with the air inlet, a fan driven by a main motor provided in a housing in communication with the air outlet and the dust chamber, a pressure detector which provides a signal showing variations characteristic of the floor type being cleaned; and circuitry, including a neural network for recognizing and classifying the floor type as a function of these variations, a setpoint generator for determining a pressure setpoint as a function of the variations, and a control circuit for controlling the power of the main motor so as to maintain the pressure setpoint.