Patents by Inventor Helga S. Woods

Helga S. Woods has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Refrigerant subcooler for air conditioning systems
    Patent number: 4696168
    Abstract: An air conditioning or refrigeration system having a subcooler (18) for subcooling liquid or hot gaseous refrigerant before the refrigerant is supplied to a heat exchanger, such as an evaporator (24) or a condenser (14). The refrigerant subcooler or precooler (18, 18A, 18B) utilized in the method and apparatus of the refrigeration system has an inner cylindrical housing (38, 38A) positioned in concentric relation to an outer cylindrical housing (48, 48A) and forming an annulus (53, 53A) therebetween. A small portion of refrigerant is diverted from the main body of refrigerant at the subcooler (18, 18A) and is passed through an expanison valve (32, 32A) for vaporizing upon entering the subcooler (18, 18A).
    Type: Grant
    Filed: October 1, 1986
    Date of Patent: September 29, 1987
    Assignee: Roger Rasbach
    Inventors: Donald R. Woods, Helga S. Woods