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:
Jan. 25, 1983
Filed:
Feb. 06, 1981
Applicant:
Inventor:
Daniel A Baker, St. Louis Park, MN (US);
Assignee:
Whirlpool Corporation, Benton Harbor, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H / ;
U.S. Cl.
CPC ...
361 23 ; 15319 ; 15391 ; 318463 ; 361242 ;
Abstract
A vacuum cleaner control providing solid state high and low speed electronic control of a vacuum cleaner motor. The control circuit is arranged to terminate operation of the motor in the event the sensed speed of a brush driven by the motor drops below a predetermined low speed as by jamming of the brush. A membrane touch switch panel includes switches which provide manually controlled inputs to the control. In one form, the control uses phase control in setting the low speed operation of the motor and in another form, the control utilizes half wave rectification in setting the low speed motor operation.