SAMUEL G TOUB
Engineering in Dallas, TX
License number
Massachusetts 35336
Issued Date
Apr 27, 1990
Expiration Date
Jun 30, 2010
Type
Mechanical Engineer
Address
Address
Dallas, TX 75244
Professional information
Oil Collection/Recirculation For Vapor-Compression Refrigeration System
US Patent:
4625523, Dec 2, 1986
Filed:
Jan 25, 1985
Appl. No.:
6/700705
Inventors:
Samuel G. Toub - Dallas TX
James L. Gilliland - Garland TX
Homer W. Holder - Garland TX
James L. Gilliland - Garland TX
Homer W. Holder - Garland TX
International Classification:
F25B 3100
US Classification:
62193
Abstract:
A single or multiple evaporator vapor-compression refrigerant system for single or multi-story structures includes a lubricating oil collection reservoir and a separate oil pumping unit for returning oil separated from the refrigerant fluid in the refrigerant flow circuit to the compressor unit. In multi-story, direct expansion, vapor-compression, air conditioning systems, a simplified generally vertical refrigerant vapor return riser is provided with an oil reservoir at the lowest elevation point of the riser and a liquid level sensing switch for energizing and deenergizing the separate lubricating oil pumping unit. The pumping unit may include an electric or refrigerant fluid driven motor connected to a pump or the pumping unit may include a pressure vessel into which high pressure refrigerant vapor is admitted to displace oil back to the compressor through an oil return conduit.
Oil Collection/Recirculation For Vapor-Compression Refrigeration System
US Patent:
4534182, Aug 13, 1985
Filed:
May 7, 1982
Appl. No.:
6/375721
Inventors:
Samuel G. Toub - Dallas TX
James L. Gilliland - Garland TX
Homer W. Holder - Garland TX
James L. Gilliland - Garland TX
Homer W. Holder - Garland TX
International Classification:
F25B 3100
US Classification:
62193
Abstract:
A single or multiple evaporator vapor-compression refrigerant system for single or multi-story structures includes a lubricating oil collection reservoir and a separate oil pumping unit for returning oil separated from the refrigerant fluid in the refrigerant flow circuit to the compressor unit. In multi-story, direct expansion, vapor-compression, air conditioning systems, a simplified generally vertical refrigerant vapor return riser is provided with an oil reservoir at the lowest elevation point of the riser and a liquid level sensing switch for energizing and deenergizing the separate lubricating oil pumping unit. The pumping unit may include an electric or refrigerant fluid driven motor connected to a pump or the pumping unit may include a pressure vessel into which high pressure refrigerant vapor is admitted to displace oil back to the compressor through an oil return conduit.