Patents by Inventor Frederic Lissau, deceased

Frederic Lissau, deceased 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: 4895226
    Abstract: An automatic slack adjuster for over-the-road vehicle brakes is adapted to be mounted between the brake chamber and brake operating shaft, for example an operating shaft known as an S cam shaft. The slack adjuster includes a body having a lever arm pivotally connected thereto, which lever arm is connected to the brake chamber through a brake operating rod. A drive member is fixed onto the brake operating shaft and is movably positioned within the body. There is an adjustable connection between the lever arm and the drive member for adjusting the relationship between the drive member and body in response to the body movement required for a brake application. The adjustable connection provides for incremental adjustment and is responsive, during brake application movement of the lever, for both sensing and taking up a limited amount of slack.
    Type: Grant
    Filed: August 19, 1985
    Date of Patent: January 23, 1990
    Assignee: Midland Brake, Inc.
    Inventors: Arthur A. Berg, Frederic Lissau, deceased
  • Patent number: 4643008
    Abstract: A lock for a fuel filler cap has a cylindrical body with an axial keyway formed therein. A tumbler body is rotatably disposed in the cylindrical body. The tumbler mounts a plurality of tumbler pins which are slidable into and out of the keyway. The tumbler carries a locking cam, which is mounted eccentrically with respect to the tumbler axis of rotation. The locking cam is engagable in a friction fit with the interior diameter of the fuel filler neck. The sidewalls of the keyway are angled so as to present a wide mouth opening for the tumbler pins.
    Type: Grant
    Filed: March 4, 1985
    Date of Patent: February 17, 1987
    Assignee: Sloan Valve Company
    Inventor: Frederic Lissau, deceased
  • Patent number: 4612954
    Abstract: A pedal operated flushing system includes a hydraulically-actuated flush valve connected to a hydraulic fluid source by a supply line having a control valve therein. The control valve is mounted on a pocket portion of a bracket, the pocket forming an enclosure about an opening in a wall. A pedal is hinged to the bracket and normally covers the wall opening. The pedal pivots into the enclosure to actuate the control valve. A spring interposed between the pedal and control valve absorbs overtravel of the pedal toward the valve.
    Type: Grant
    Filed: March 21, 1985
    Date of Patent: September 23, 1986
    Assignee: Sloan Valve Company
    Inventors: Frederic Lissau, deceased, Michael R. Stoltenberg