Patents by Inventor Edson S. Hineline, Jr.

Edson S. Hineline, 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).

  • Push-button dial for a telephone
    Patent number: 4508938
    Abstract: A solid state push-button dial circuit in which a push-button key pad uses a simple on-off switch for each key to mute the receiver and open the circuit to the transmitter while a dial tone is being generated. The circuit, when operating with the speaker phone, mutes the speaker phone when the key is depressed. The phone can be easily switched to a polarity-sensitive state in which the tone generator is turned on only if the proper polarity is present on the telephone line.
    Type: Grant
    Filed: May 18, 1983
    Date of Patent: April 2, 1985
    Assignee: Comdial Telephone Systems, Inc.
    Inventors: Ronald W. Bench, Edson S. Hineline, Jr.