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:
Nov. 09, 1982
Filed:
Jan. 26, 1981
Donald R Vander Molen, Lincoln Township, Berrien County, MI (US);
Roger L Nyland, Lincoln Township, Berrien County, MI (US);
Whirlpool Corporation, Benton Harbor, MI (US);
Abstract
A vacuum cleaner structure having a control for reducing the total current delivery to the vacuum cleaner as when both a suction motor thereof and a brush motor thereof are being operated concurrently. The control includes an 'On-Off' switch mounted on a portion of the suction hose for the vacuum cleaner. The invention comprehends the provision of such a current-reducing control where the full load currents of the suction and brush motors cumulatively total an amount greater than a preselected safe current deliverable to the vacuum cleaner. The control is arranged to be used with a vacuum cleaner having a suction hose connected between a suction unit and a cleaning unit thereof, such as a floor cleaning unit. In one form, the control utilizes a two-conductor wire suction hose, and in another form, the control utilizes a three-conductor wire suction hose. The 'On-Off' switch is mounted on the handle on the end of the suction hose which may be attached to a cleaning unit and circuitry is provided in a control portion carried by the suction unit responsive to the disposition of the 'On-Off' switch to effect the desired current and speed control of the system. The handle-mounted 'On-Off' switch also controls the suction unit during cleaning operations which do not employ a floor cleaning unit including a motor-driven brush.