Patents by Inventor Richard A. Northrop, Jr.

Richard A. Northrop, Jr. 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).

  • Thermal power element with safety lockup
    Patent number: 4187683
    Abstract: A fusible link is provided in a force transmitting device. Upon reaching a preselected temperature, the fusible link melts causing a cooperating locking member to engage a shoulder on a power piston to secure the same in an extended operating position and effect a lock-open condition for certain critical applications.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: February 12, 1980
    Assignee: Century Brass Products, Inc.
    Inventors: Richard A. Northrop, Jr., David J. Wanat