Samuel George Toub
Engineers in Dallas, TX
License number
Utah 270145-2202
Issued Date
Dec 14, 1993
Expiration Date
Mar 31, 2017
Category
Engineer/Land Surveyor
Type
Professional Engineer
Address
Address
Dallas, TX
Education
UNIVERSITY OF TEXAS AT ARLINGTON, Jun 1, 1969
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.