Patents by Inventor Kenneth C. Ivey

Kenneth C. Ivey 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).

  • Inline stroke counter for air pumps
    Patent number: 6439856
    Abstract: A novel method for counting pump cycles of an air pump by detecting the air pressure differential of the air pump cycle with a differential pressure switch and attaching an electronic counter to the pressure switch to count the number of openings and /or closings detected by the pressure switch.
    Type: Grant
    Filed: November 1, 2000
    Date of Patent: August 27, 2002
    Assignee: SEH America, Inc.
    Inventor: Kenneth C. Ivey
  • High pressure gas cleaning purge of a dry process vacuum pump
    Patent number: 6189176
    Abstract: A high pressure gas cleaning purge cleaning silicon oxide dust deposits from inside a dry vacuum pump while installed on a crystal grower. The high pressure gas cleaning purge is performed before or after each crystal is grown. The high pressure gas flow is injected into the inlet of the dry vacuum pump and repeatedly turned on and off to create differing turbulent flow patterns within the pump. The differing turbulent flow patterns effectively remove substantial quantities of the silicon oxide dust deposited in the pump during crystal growing.
    Type: Grant
    Filed: February 18, 2000
    Date of Patent: February 20, 2001
    Assignee: SEH-America, Inc.
    Inventors: Kenneth C. Ivey, Aaron L. LaBrie
  • High pressure gas cleaning purge of a dry process vacuum pump
    Patent number: 6090222
    Abstract: A high pressure gas cleaning purge cleans silicon oxide dust deposits from inside a dry vacuum pump while installed on a crystal grower. The high pressure gas cleaning purge is performed before or after each crystal is grown. The high pressure gas flow is injected into the inlet of the dry vacuum pump and repeatedly turned on and off to create differing turbulent flow patterns within the pump. The differing turbulent flow patterns effectively remove substantial quantities of the silicon oxide dust deposited in the pump during crystal growing.
    Type: Grant
    Filed: November 16, 1998
    Date of Patent: July 18, 2000
    Assignee: Seh-America, Inc.
    Inventors: Kenneth C. Ivey, Aaron L. LaBrie