Patents by Inventor Kurt Schumann

Kurt Schumann 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).

  • Patent number: 5025971
    Abstract: An annular cushioning buffer (1) is fabricated from an elastic material, such as, for example, polyurethane, for use in connection with fastener-driving tools for impact load distribution and energy absorption purposes. The buffer (1) includes an axially central passage (2) having an axis (M), as well as a plurality of axially extending holes (3) equiangularly spaced about the annular buffer (1) along a circular locus thereof. Radially extending slots (6) extend toward and open onto or pierce inner and outer peripheral or circumferential surfaces (4,5) of the buffer (1) in an alternative fashion so as to uniformly distribute the load impressed upon the buffer (1) by means of the striking piston of the fastener-driving tool.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: June 25, 1991
    Assignee: Paslode GmbH
    Inventors: Manfred Schafer, Kurt Schumann, Horst Tacke