Patents by Inventor Lyle R. Pierce

Lyle R. Pierce 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: 4695739
    Abstract: A multi-function circuit controller provides auxiliary control functions for an existing single-pole, single-throw toggle switch by counting the number of changes of state of the switch that occur within predesignated delay periods from one state change to the next. An encoder responsive to a sequencer counter develops control functions such as dimming and timing functions which attenuate the power delivered to the load and regulate the on-off time of the load. The invention may be used in conjunction with a household lighting circuit to provide these functions for an existing wall-mounted switch, thereby providing dimmer and programmable timing for the lighting normally controlled by the switch.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: September 22, 1987
    Inventor: Lyle R. Pierce
  • Patent number: 4354160
    Abstract: An amplitude equalizer, suitable for use on telephone lines, is disclosed. The circuit includes an adjustable-gain amplifier, and an adjustable-slope equalizer section. A mixer section serves to combine the input signal with a filtered version thereof, in a manner which enables the installer to bring the line of response to specification level at a first predetermined frequency, and then to bring the line to specification level at a second frequency, without disturbing the previously achieved gain at the first frequency.
    Type: Grant
    Filed: July 1, 1980
    Date of Patent: October 12, 1982
    Assignee: Kentrox Industries, Inc.
    Inventor: Lyle R. Pierce