Patents by Inventor Albert Schach

Albert Schach 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 unit for telephone sets
    Patent number: 4386240
    Abstract: The buttons of the push-button unit disclosed are guided in the cover and provided with restoring springs. The contact springs of a row are cut free from a strip and pretensioned against the printed-circuit board lying under the strip. In the normal position, they are pulled against the cover by the button shafts. Located below the printed-circuit board is a slide which is actuated by all buttons and acts on the common contact.
    Type: Grant
    Filed: December 8, 1980
    Date of Patent: May 31, 1983
    Assignee: International Standard Electric Corporation
    Inventors: Gerd Philipp, Manfred Ramsaier, Albert Schach