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:
Apr. 07, 1987
Filed:
Dec. 31, 1985
Edward H Getz, Pipestone Township, Berrien County, MI (US);
Roger D Burdi, Royalton Township, Berrien County, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A control system for a vacuum cleaner comprising three separate sub-control systems located in a canister portion, a power nozzle floor cleaner portion and a suction hose handle portion respectively. The handle portion sub-control includes user input switches and indicator lights and it controls the other two sub-controls. The canister sub-control controls the energization and speed of a suction fan motor as well as sensing pressure levels in the canister and suction hose. The floor cleaner sub-control controls the energization of a beater brush motor as well as sensing the rotational speed of the beater brush and depth of carpeting pile. Microcomputers are used in each circuit and communication between the circuits is done in packet form on a third connector and one side of an AC power line. Diagnostic testing is also built into the control system.