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. 10, 1995
Filed:
Sep. 01, 1993
Michael Blase, Grand Rapids, MI (US);
Bissell Inc., Grand Rapids, MI (US);
Abstract
A switch and connector for selectively creating an electrical circuit between a motor mounted in a power foot and a combination vacuum cleaning/water extraction machine is disclosed. The motor mounted in the power foot drives an agitation member rotatively mounted in the power foot. The power foot is inter-connected to the housing of the machine through a rigid wand, a grip tube and a flexible hose. A pneumatic switch is mounted in the electrical circuit between the source of electricity and the power foot motor. A bladder is mounted to the grip tube and in fluid communication with the pneumatic switch through a conduit. The bladder is constructed such that the pneumatic switch cannot be activated to create a complete electrical circuit between the source of electricity and the power foot motor unless the grip tube and wand are properly assembled.