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:
Jan. 25, 2000
Filed:
Feb. 25, 1997
Applicant:
Inventor:
Paul M Beldham, Mission Viejo, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
D06F / ;
U.S. Cl.
CPC ...
68 1218 ; 68 1227 ; 68 1 / ; 68207 ; 137566 ; 2221445 ; 222651 ;
Abstract
A safety circuit for washing machines prevents an accidental simultaneous feed of bleach and sour due to a malfunction of the machine's controller, by interposing a normally open contact and a normally closed contact of a relay, respectively, in the sour pump power line and the bleach pump power line. The coil of the relay is powered by the controller's power output for the pump in whose power circuit the normally open contact is located.