EP 0721092 A2 19960710 - Controlling defrost in a refrigerated compartment
Title (en)
Controlling defrost in a refrigerated compartment
Title (de)
Abtausteuerung eines gekühlten Fachs
Title (fr)
Commande de dégrivage d'un compartiment réfrigéré
Publication
Application
Priority
US 36960295 A 19950106
Abstract (en)
An electromechanical defrost control system (10) for a refrigerator which uses the compressor cycling thermostat (14) to incrementally advance a ratchet (30) each compressor cycle. The ratchet (20) drives a cam (18) which closes a defrost heater selector switch (16) when a predetermined accumulated number of compressor cycles have occurred. Upon the compartment being heated, the thermostat (14) incrementally advances the cam (18) which returns the selector switch (16) to the compressor operating position and de-energizes the defrost heater (25).
IPC 1-7
IPC 8 full level
F25D 21/02 (2006.01); F25B 47/02 (2006.01); F25D 21/00 (2006.01); F25D 21/06 (2006.01); F25D 21/08 (2006.01)
CPC (source: EP)
F25D 21/004 (2013.01); F25D 2700/12 (2013.01)
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0721092 A2 19960710; EP 0721092 A3 19980114; BR 9600423 A 19980303; CA 2166571 A1 19960707; CN 1151507 A 19970611; JP H08254375 A 19961001
DOCDB simple family (application)
EP 95120450 A 19951222; BR 9600423 A 19960105; CA 2166571 A 19960104; CN 96101537 A 19960105; JP 1711996 A 19960105