Patents by Inventor Lance L. Frens

Lance L. Frens 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).

  • Method and apparatus for maintaining a required temperature differential in vacuum deaerators
    Patent number: 5343705
    Abstract: A method and apparatus for providing a required deaerating temperature differential between incoming water and sparge steam in a steam generation system having a vacuum deaerator. The present invention selectively combines raising the energy of the sparge steam with flash cooling of the incoming water to provide the required deaerating temperature differential. The energizing of the sparge steam is accomplished by a thermocompression device. The thermocompression device may also be used to reduce the pressure in a portion of the vacuum deaerator to cause the flash cooling of the incoming water.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: September 6, 1994
    Assignee: Graham Corporation
    Inventors: Roderick E. Athey, Elliot Spencer, Lance L. Frens
  • Method and apparatus for maintaining a required temperature differential in vacuum deaerators
    Patent number: 5297389
    Abstract: A method and apparatus for providing a required deaerating temperature differential between incoming water and sparge steam in a steam generation system having a vacuum deaerator. The present invention selectively combines raising the energy of the sparge steam with flash cooling of the incoming water to provide the required deaerating temperature differential. The energizing of the sparge steam is accomplished by a thermocompression device. The thermocompression device may also be used to reduce the pressure in a portion of the vacuum deaerator to cause the flash cooling of the incoming water.
    Type: Grant
    Filed: August 6, 1992
    Date of Patent: March 29, 1994
    Assignee: Graham Corporation
    Inventors: Roderick E. Athey, Elliot Spencer, Lance L. Frens
  • Method and apparatus for maintaining a required temperature differential in vacuum deaerators
    Patent number: 5165237
    Abstract: A method and apparatus for providing a required deaerating temperature differential between incoming water and sparge steam in a steam generation system having a vacuum deaerator. The present invention selectively combines raising the energy of the sparge steam with flash cooling of the incoming water to provide the required deaerating temperature differential. The energizing of the sparge steam is accomplished by a thermocompression device. The thermocompression device may also be used to reduce the pressure in a portion of the vacuum deaerator to cause the flash cooling of the incoming water.
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: November 24, 1992
    Assignee: Graham Corporation
    Inventors: Roderick E. Athey, Elliot Spencer, Lance L. Frens