Patents by Inventor John S. Mecher

John S. Mecher 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).

  • Telephone handset having housings assembled without mechanical fasteners
    Patent number: 4776009
    Abstract: Assembly of handsets is accomplished without the use of mechanical fastenings. Energy directors are provided at the peripheral edges of one of the two housings forming a handset, and the two housings are united by sonic welding. Severe damage can be caused to transducers mounted in the handset by sonic welding, but the use of energy directors directs the sonic energy around the transducers, avoiding damage. The transducers can be held in place by heatstaking positioning members. A rigid assembly which is readily amenable to automated assembly is provided.
    Type: Grant
    Filed: June 9, 1986
    Date of Patent: October 4, 1988
    Assignee: Northern Telecom Limited
    Inventors: Beverley W. Gumb, Richard J. Elgie, John S. Mecher