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. 14, 2017
Filed:
Nov. 11, 2015
Fisher & Paykel Appliances Limited, Aukland, NZ;
Jonathan David Harwood, Auckland, NZ;
Hugh Griffith Johnson, Auckland, NZ;
Geoffrey Alan Lee, Auckland, NZ;
Gregory Paul Hill, Auckland, NZ;
Anna Kathryn Duncan, Auckland, NZ;
Adrian Anthony Sargeant, Queensland, AU;
Abstract
The present invention relates to a washing machine () and pump () for a washing machine (). The pump is driven by a brushless DC motor (). The pump can be controlled to improve the operation of the washing machine. In one aspect the invention comprises a washing machine () with a variable speed pump () for pumping out wastewater, a controller () for controlling the speed of the pump and a sensor () for determining the flow-rate of water being pumped from the washing machine, wherein the controller () controls the speed of the pump to maintain the flow-rate at a desirable level.