Patents by Inventor Sam Chia

Sam Chia 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).

  • Brake S-CAM positioning sensor system
    Publication number: 20020019688
    Abstract: The present invention relates to a brake monitoring system for trucks, tractors, trailers or buses (class 6, 7 & 8 vehicles) using air brakes. In particular the present invention provides apparatus to monitor the braking system and the brake pad S-CAM positioning comprising a positioning transducer which can convert the rotational movement of the brake cam shaft S-CAM to an electrical signal. This signal is used as the input to a microprocessor system for further analysis and comparison in determining the condition of the S-CAM operations. The transducer signal not only provides the S-CAM position, but the speed of rotation both in braking and release of the brakes.
    Type: Application
    Filed: June 1, 2001
    Publication date: February 14, 2002
    Inventors: John Mantini, Ken Adams, Sam Chia
  • Early warning device for tire rims and hub assemblies
    Patent number: 5959365
    Abstract: The present invention relates to an apparatus to provide a monitoring device for detecting problems associated with the wheels of trucks and trailers. The apparatus comprises one or more individual axle spindle sensors, a programmable micro processor for receiving and processing the sensor signals to detect an alarm condition and alarm means to alert the driver of a problem with one or more of the wheels.
    Type: Grant
    Filed: February 12, 1998
    Date of Patent: September 28, 1999
    Inventors: John Mantini, Ken Adams, Sam Chia