Patents by Inventor Frank J. Sonzala

Frank J. Sonzala 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: 6892778
    Abstract: The present invention is directed to a wheel end assembly having a high temperature warning system for giving a warning in the event that the temperature in the assembly reaches a predetermined value such as caused by hub bearing failure or a brake related failure. In one embodiment the system may be a stand-alone system for installation on any vehicle such as a trailer. In another embodiment the system may be combined with an automatic tire inflation system.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: May 17, 2005
    Inventors: Mark K. Hennig, Frank J. Sonzala
  • Patent number: 5140932
    Abstract: A brake wear indicator, which in one aspect is clampable to a push rod of a brake and having an indicator member contactable with or affixable to a brake housing or other member of a vehicle, the indicator member contained in and freely movable from a hollow cartridge and being exposed upon actuation of the brake and movement of the push rod and being returned into the cartridge upon deactivation of the brake; in one aspect the indicator indicating brake overadjustment and having readjustment indicia; and in another aspect the hollow cartridge having a closure member for closing off an end thereof after the insertion of an indicator member or other items e.g. a spring, therein.
    Type: Grant
    Filed: August 30, 1991
    Date of Patent: August 25, 1992
    Assignee: LGS Research, Inc.
    Inventors: Nathan L. Goldfein, Frank J. Sonzala
  • Patent number: 5044302
    Abstract: A brake wear indicator having a hollow cartridge clampable to a push rod of a brake and having an indicator member within the cartridge spring biased at one end and contractible with the brake housing or other stationary member of a vehicle. The indicator member being exposed upon actuation of the brake and movement of the push rod. Warning indicia on the indicator member being exposed after the push rod has been moved a predetermined distance.
    Type: Grant
    Filed: June 29, 1990
    Date of Patent: September 3, 1991
    Assignee: LGS Research, Inc.
    Inventors: Nathan L. Goldfein, Frank J. Sonzala