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:
May. 29, 1984
Filed:
May. 13, 1981
Wade R Brown, Saint Charles, IL (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
An automatic dishwasher includes a water inlet line, a flow control valve assembly, a wash water introducing means for introducing wash water into a container which is adapted to receive dishes, and control means for selectively controlling the flow control valve assembly. The flow control valve assembly includes a first flow control valve which is selectively actuated by a first solenoid coil and a second flow control valve which is selectively actuated by a second solenoid coil. A first ferromagnetic member is disposed between a first end of the solenoid coils and a second ferromagnetic member is disposed between the other end of the solenoid coils. The solenoid coils are so interconnected that when an actuating potential is applied across them, they are electrically in series. The series connection of the coils allows the coils to be configured such that a significant saving in the cost of coil wire is achieved over parallel connected coils. Creating the magnetic fields with the opposite polarity causes a closed magnetic flux path through both solenoid coils and both ferromagnetic members such that the coils act in concert to boost the strength of the magnetic fields that they generate.