Patents by Inventor Martin H. Pitstick

Martin H. Pitstick 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: 6370993
    Abstract: A self-contained impact driver includes an internal hammer, hammer spring and trigger. Pressing the driver against a fastener compresses the spring progressively until the end of the stroke, at which time the hammer is released by the trigger. The trigger both compresses the hammer spring, and releases it. Rotary impact force is applied to the fastener in a selected clockwise or counterclockwise direction.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: April 16, 2002
    Inventor: Martin H. Pitstick
  • Patent number: 4902878
    Abstract: An improved data entry and control arrangement for an appliance which includes an electronic display having a plurality of digits. User actuable up and down keys enable the user to adjust the value displayed. The control changes the display by a first amount, for example, one minute for a time display, in response to each momentary actuation of an up or down key. In response to continuous actuation, the control, after initially changing the display by the first amount, then switches the least significant digit of the display to zero and thereafter periodically changes the display by a second amount evenly divisible by ten, such as for example 10 minutes. The preferred update interval between changes is on the order of 0.45 seconds duration. The control also enables the user to change the update interval.
    Type: Grant
    Filed: November 4, 1988
    Date of Patent: February 20, 1990
    Assignee: General Electric Company
    Inventors: John M. Smith, Martin H. Pitstick
  • Patent number: 4204204
    Abstract: A safe and convenient ON/OFF switch arrangement for a touch control bar graph device of the type which includes an array of light transmitting touch-sensitive areas superimposed over a bar graph display. In order to require two operations to enable the touch control bar graph device, the present arrangement has an ON touch-sensitive area positioned adjacent to but spaced from the touch control bar graph device. A de-energizing touch-sensitive area is positioned in the space between the ON touch-sensitive area and the touch control bar graph device. Further, a circuit means is responsive to the ON and the de-energizing touch-sensitive areas for enabling operation of the touch control bar graph device in response to the touching of the ON touch-sensitive area, and for disabling touch control bar graph operation in response to the touching of the de-energizing touch-sensitive area.
    Type: Grant
    Filed: May 25, 1978
    Date of Patent: May 20, 1980
    Assignee: General Electric Company
    Inventor: Martin H. Pitstick
  • Patent number: D249126
    Type: Grant
    Filed: October 26, 1976
    Date of Patent: August 29, 1978
    Assignee: General Electric Company
    Inventors: Martin H. Pitstick, Charles H. Schmitt