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:
Aug. 06, 2019
Filed:
Jun. 27, 2007
Robert S. Robinson, Hamilton, OH (US);
Robert G. Robinson, Hamilton, OH (US);
Robert S. Robinson, Hamilton, OH (US);
Robert G. Robinson, Hamilton, OH (US);
Kaivac, Inc., Hamilton, OH (US);
Abstract
In one aspect, the invention is directed to a cleaning machine that includes a fresh liquid tank, a vacuum tank, and an electromechanical assembly—with the electromechanical assembly including an electromechanical housing, a pump, and a vacuum motor. In this particular aspect of the invention, the pump and the vacuum motor are mounted to the electromechanical housing; and the electromechanical assembly is releasably connected to the fresh liquid tank. In another aspect, the invention is directed to a method for rapid replacement of the electromechanical components of the cleaning machine described immediately above. The method includes disconnecting the electromechanical assembly from the fresh liquid tank, and connecting a replacement electromechanical assembly to the fresh liquid tank. The replacement electromechanical assembly includes a replacement electromechanical housing, a replacement pump, and a replacement vacuum motor, with the replacement pump and replacement vacuum motor being mounted to the replacement electromechanical housing. In a further aspect, the invention is directed to a cleaning machine that includes a vacuum tank comprising a suction inlet, a vacuum motor operable to vacuum a soil-containing liquid into the vacuum tank through the suction inlet, and a HEPA filtration assembly constructed and arranged to receive a HEPA filter. In this fashion, air drawn into the vacuum tank through the suction inlet may undergo high efficiency filtration before exiting the cleaning machine.