Patents by Inventor Mattheus Johannes Snyman

Mattheus Johannes Snyman 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).

  • Accelerometers
    Patent number: 4009619
    Abstract: The invention provides for an accelerometer having an acceleration responsive means associated with a presence detector for detecting the continuous activation of the acceleration responsive means for a predetermined time duration. The accelerometer may further have recording and indicating means responsive to the presence detector. The accelerometer may particularly be used in a motor vehicle to detect excessive acceleration thereof.
    Type: Grant
    Filed: April 18, 1975
    Date of Patent: March 1, 1977
    Inventor: Mattheus Johannes Snyman