Patents by Inventor Spencer L. Mackay

Spencer L. Mackay 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).

  • Patent number: 6019341
    Abstract: A tree stand for receiving and supporting a tree, such as a live, cut Christmas tree, comprises a receptacle for receiving the trunk of the tree and a base for supporting the receptacle when the tree is received therein. The receptacle includes a clamping assembly for securing the trunk of the tree in the receptacle, while the base includes a locking assembly for locking the tree in place once it is moved to the desired vertical position. An actuator such as a foot pedal is provided for operating the locking assembly so that the user can position the tree by hand while standing on his feet with the foot pedal depressed and then lock the tree in place simply by releasing the pedal.
    Type: Grant
    Filed: May 13, 1996
    Date of Patent: February 1, 2000
    Assignee: County Line Limited, L.L.C.
    Inventors: Patrick W. Brown, Robert L. Dorsey, Cleve A. Graham, Spencer L. Mackay, John J. Pastrick, Jeffrey S. Plantz, Gary R. Stephan
  • Patent number: 5687637
    Abstract: A device for automatically brewing and holding tea has a water reservoir and a combined water reservoir inlet and heated water distributor attached to and extending forward from the water reservoir, a base for holding a hot tea receptacle under the combined water reservoir inlet and heated water distributor. A hot tea receptacle especially adapted for use with the device has a flat bottom surface for optimal heat transfer from the base to the receptacle.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: November 18, 1997
    Assignee: Healthometer, Inc.
    Inventors: Phillip L. Brookshire, Robert A. Demars, David Dinunzio, Spencer L. Mackay, Joseph F. Moore, Craig Weidman
  • Patent number: 5619904
    Abstract: A device for automatically brewing and holding tea has a water reservoir and a combined water reservoir inlet and heated water distributor attached to and extending from the water reservoir, a hinge mounted steeping chamber positionable over a base for holding a tea pot under the steeping chamber, and a tea pot specially adapted for use with the device having a flat bottom surface for optimal heat transfer from the base to the receptacle. A steeping chamber flow control valve includes opposing, overlapping relatively adjustable frusto-conical surfaces.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: April 15, 1997
    Assignee: Healthometer, Inc.
    Inventors: David Di Nunzio, Joseph F. Moore, Phillip L. Brookshire, Robert A. DeMars, Spencer L. Mackay, Craig Weidman
  • Patent number: 5490453
    Abstract: An improved centrifugal fat extraction apparatus for removing surface liquid from food which comprises a housing assembly having mounted at its bottom a self-centering drive assembly having a shaft extending vertically from the self-centering drive assembly within the housing assembly, a rotatable spindle mounted onto the shaft, a means for rotating the spindle at a variable speed between 750 and 1200 rpm for approximately a 45 second time span, and a rotatable cylindrical slotted basket capable of holding foods. The self-centering drive assembly prevents undesirable vibration from being imparted to the housing assembly as the result of eccentric loading of the foods into the slotted basket.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: February 13, 1996
    Assignee: SAS TV Products, Inc.
    Inventor: Spencer L. Mackay
  • Patent number: 5163418
    Abstract: A probe cover for an infrared thermometer has a pleated sheath which fits over the thermometer probe and a base, which is engageable with the probe, is attached to the periphery of the sheath to hold the sheath over the probe. The sheath is made of a thin infrared transparent film and is formed with a window which causes minimal attenuation of infrared emission received by the thermometer.
    Type: Grant
    Filed: July 9, 1991
    Date of Patent: November 17, 1992
    Assignee: Thermoscan Inc.
    Inventors: Jacob Fraden, Spencer L. Mackay, Alan Crawford, Mark Doyle, Robert P. Lackey
  • Patent number: D329396
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: September 15, 1992
    Assignee: Thermoscan Inc.
    Inventor: Spencer L. Mackay
  • Patent number: D342681
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: December 28, 1993
    Assignee: Thermoscan Inc.
    Inventor: Spencer L. Mackay
  • Patent number: D342718
    Type: Grant
    Filed: November 17, 1992
    Date of Patent: December 28, 1993
    Assignee: Bausch & Lomb Incorporated
    Inventor: Spencer L. Mackay
  • Patent number: D361766
    Type: Grant
    Filed: December 10, 1993
    Date of Patent: August 29, 1995
    Assignee: Voice It Technologies, Inc.
    Inventor: Spencer L. Mackay
  • Patent number: D368373
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: April 2, 1996
    Assignee: Bausch & Lomb Incorporated
    Inventors: Scott T. Shimatsu, Cleve A. Graham, Spencer L. Mackay, Stanfield K. Young
  • Patent number: D371242
    Type: Grant
    Filed: October 7, 1994
    Date of Patent: July 2, 1996
    Assignee: Bausch & Lomb Incorporated
    Inventors: Scott T. Shimatsu, Cleve A. Graham, Spencer L. MacKay
  • Patent number: D371554
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: July 9, 1996
    Assignee: Voice It Worldwide, Inc.
    Inventors: Scott T. Shimatsu, Spencer L. Mackay, Cleve A. Graham
  • Patent number: D380640
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 8, 1997
    Assignee: Healthometer, Inc.
    Inventor: Spencer L. Mackay
  • Patent number: D381583
    Type: Grant
    Filed: June 10, 1996
    Date of Patent: July 29, 1997
    Assignee: Educational Insights, Inc.
    Inventors: Gene Schugart, Kimberlee Muenzer, Spencer L. Mackay
  • Patent number: D387607
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: December 16, 1997
    Assignee: Health o meter, Inc.
    Inventors: Spencer L. Mackay, Phillip L. Brookshire
  • Patent number: D393262
    Type: Grant
    Filed: May 29, 1996
    Date of Patent: April 7, 1998
    Assignee: Voice It Worldwide, Inc.
    Inventors: Scott T. Shimatsu, Spencer L. Mackay
  • Patent number: D397995
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: September 8, 1998
    Assignee: Lamar Sales, Inc.
    Inventors: Donald F. Lamar, Spencer L. Mackay, Richard F. M. Conroy
  • Patent number: D406139
    Type: Grant
    Filed: August 11, 1997
    Date of Patent: February 23, 1999
    Assignee: Voice It Worldwide, Inc.
    Inventors: Scott T. Shimatsu, Cleve A. Graham, Spencer L. Mackay
  • Patent number: D411826
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: July 6, 1999
    Assignee: The Lamar Corporation
    Inventors: Donald F. Lamar, Spencer L. Mackay, Richard F. M. Conroy
  • Patent number: D420602
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: February 15, 2000
    Assignee: The Lamar Corporation
    Inventors: Donald F. Lamar, Spencer L. Mackay, Richard F. Conroy