ROBERT G LEHMILLER
General Contractor in Clearfield, UT
License number
Utah 5241217-S350
Issued Date
Jan 23, 2003
Category
Contractor
Type
S350 - HVAC Qualifier
Address
Address
Clearfield, UT
Professional information
Apparatus And Method For Controlling The Operation Of A Refrigeration System
US Patent:
5682756, Nov 4, 1997
Filed:
Jun 21, 1996
Appl. No.:
8/668217
Inventors:
Robert G. Lehmiller - Clearfield UT
David K. Jacks - Kaysville UT
David K. Jacks - Kaysville UT
International Classification:
F25B 4902
US Classification:
62157
Abstract:
An apparatus for controlling the operation of a refrigeration system having a compressor, a defrost timer that provides an operating power supply, a solenoid valve, and a thermostat includes a relay switch and a delay timer. The relay switch is coupled in series between the defrost timer and the thermostat, and it is configured to electrically disconnect an operating power supply from the thermostat for a predetermined time period regulated by the delay timer. The solenoid valve closes when the relay switch is in the opened state and the compressor remains functional during the predetermined time period.