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. 30, 2000
Filed:
Jan. 11, 1999
David R Whited, Brentwood, TN (US);
France/Scott Fetzer Company, Fairview, TN (US);
Abstract
A control circuit for supplying current from an electrical power source to a damper motor and an evaporator fan motor of a two compartment refrigeration unit. The control circuit includes a first and second thermostatic switches to regulate the temperature in respective first and second refrigeration compartments. The control circuit further includes a first mechanically actuated switch having a first common contact electrically connected to the damper motor. A first contact of the first switch connects the damper motor to the power source via the second thermostatic switch in response to a decrease in temperature in the second compartment. A second contact of the first switch connects the damper motor to the power source via the second thermostatic switch in response to an increase in temperature in the second compartment. The control circuit further has a second mechanically actuated switch with a second common contact connected to the evaporator fan motor. A first contact of the second switch connects the evaporator fan motor to the power source via the first thermostatic switch in response to an increase in temperature of the first compartment. A second contact in the second switch connects the power source to the evaporator fan motor via the second thermostatic switch in response to an increase in temperature of the second compartment.