Progressive Displacement Of Hood Patents (Class 29/DIG60)
  • Patent number: 5607269
    Abstract: A milling apparatus is disclosed which includes a milling machine having a milling cutter which is sealingly isolated from the milling machine within an enclosed work area, a support fixture disposed within the enclosed work area for supporting a work piece, and a mechanism for moving the milling cutter along a predetermined path relative to the work piece. Preferably, the milling apparatus is employed to cut bone into small fragments for subsequent utilization, and the sealed isolation of the milling cutter inhibits cross-contamination between differing work pieces.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: March 4, 1997
    Assignee: Osteotech, Inc.
    Inventors: Michael Dowd, Nelson Scarborough, Mark Daugherty
  • Patent number: 4936174
    Abstract: A center-drive lathe has a longitudinally elongated machine base having a front, a back, and a pair of longitudinally spaced ends. A centerstock is generally centrally mounted on the front of the base and a pair of guides on the front of the base extend longitudinally at least from the centerstock to the ends of the base. Respective carriages are displaceable longitudinally along the guides between the ends and the centerstock so that a workpiece can be spanned in and rotated by the centerstock and worked by tools held on the carriages. A stack of interconnected telescoping plates including one end plate connected to one of the carriages and another end plate connected to the other carriage extends over the guides and past the centerstock between the carriages. The guides are thus covered between the carriages by the telescoping stack of plates.
    Type: Grant
    Filed: March 14, 1989
    Date of Patent: June 26, 1990
    Assignee: Maschinenfabrik Heid Aktiengesellschaft
    Inventors: Franz Holy, Heinz Mang
  • Patent number: 4677718
    Abstract: In a machine tool having a palette change-over device protected by a movable U-shaped hood, to prevent injury to the operator or accidental damage during movement of the hood the hood is provided with a probe and an automatic circuit breaker arranged to shut down at least the driving mechanism of the hood on contact with the operator or another foreign body in the path of movement of the hood.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: July 7, 1987
    Assignee: MAHO Werkzeugmaschinenbau Babel & Co.
    Inventor: Werner Babel