Patents by Inventor Hanns Zimmermann

Hanns Zimmermann 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).

  • Pneumatically driven clamping device, in particular a machine vice
    Patent number: 4418899
    Abstract: A pneumatically driven clamping device, in particular a machine vice, has a clamping member movable in the clamping direction in a stationary housing and an adjusting arrangement for coarse adjustment of the clamping member in the clamping direction with respect to the stationary housing. Between the adjusting arrangement and the clamping member in a drive housing there is provided a power amplifier with a primary element to which pneumatic pressure can be admitted, an abutment provided at one end of the power amplifier and connected to the adjusting arrangement, and a secondary element movable in the clamping direction at the other end of the power amplifier and acting on the clamping member.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: December 6, 1983
    Assignee: Saurer-Allma GmbH
    Inventors: Hanns Zimmermann, Peter Preisenhammer