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:
Oct. 28, 2003
Filed:
Sep. 07, 2001
Robert L. Crevling, Jr., Cogan Station, PA (US);
Mark E. Baer, Trout Run, PA (US);
Shop Vac Corporation, Williamsport, PA (US);
Abstract
A vacuum cleaner is provided having a tank with an inlet for receiving liquid material and defining an interior. An air impeller housing has an opening in air flow communication with the tank interior, and an air impeller is disposed inside the air impeller housing. A motor is disposed inside a motor housing and operatively coupled to the air impeller, and a switch is provided having a first position in which power is provided to the motor and a second position in which power to the motor is interrupted. A float is disposed in the tank and a float rod extends between the tank and the switch, the float rod being capable of moving the switch from the first position to the second position. A seal is positioned intermediately along the float rod to create a water-tight barrier between opposite ends of the float rod.