Patents by Inventor Boris Langhoff

Boris Langhoff 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).

  • Clamping device for a compass sawing machine
    Patent number: 5306025
    Abstract: A clamping device (3) for the saw blade (4) of a hand-operated compass sawing machine has a centering sleeve (7) for the clamped end (5) of the saw blade (4) and a clamping sleeve (10) rotatably mounted on the centering sleeve (7). During the rotation of the clamping sleeve (10) by means of a torsion spring (11), the clamping sleeve (10) is brought, via inclined planes, into the clamping position for the saw blade (4). To improve handling, and especially to make the adjusting member (27, 20) independent of the sawing stroke, a connection bush (27) with a gripping member (28), which connection bush is mounted axially nondisplaceably in the housing (1), is provided as an adjusting member.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: April 26, 1994
    Assignee: Altas Copco Elektrowerkzeuge GmbH
    Inventor: Boris Langhoff