Patents by Inventor James L. Coffman

James L. Coffman 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).

  • System and method for auxiliary contact assembly and snap mounting
    Patent number: 6864768
    Abstract: An electrical switching system comprises a main housing enclosing an actuable apparatus including an actuator extending outwardly of the housing. A contact housing encloses an electrical contact and a pusher selectively actuable by the actuator to operate the contact. A mortise is provided on one of the main housing and contact housing and a tenon is provided on the other of the main housing and contact housing for joining the contact housing to the main housing. A snap lock resiliently locks the contact housing to the main housing.
    Type: Grant
    Filed: September 21, 2001
    Date of Patent: March 8, 2005
    Assignee: Siemens Energy & Automation, Inc.
    Inventors: Christian H. Passow, James L. Coffman
  • System and method for auxiliary contact assembly and snap mounting
    Publication number: 20030057077
    Abstract: An electrical switching system comprises a main housing enclosing an actuable apparatus including an actuator extending outwardly of the housing. A contact housing encloses an electrical contact and a pusher selectively actuable by the actuator to operate the contact. A mortise is provided on one of the main housing and contact housing and a tenon is provided on the other of the main housing and contact housing for joining the contact housing to the main housing. A snap lock resiliently locks the contact housing to the main housing.
    Type: Application
    Filed: September 21, 2001
    Publication date: March 27, 2003
    Inventors: Christian H. Passow, James L. Coffman