Having Uniplanar Compound Motion Patents (Class 83/776)
  • Patent number: 7596873
    Abstract: In a hand-guided, motor-driven compass saw machine (1), having a housing (2) that contains a saw blade (3) that can be moved in the vertical direction by a lifter rod (4), and having an oscillation mechanism that has a roller lever (5), which is contained in the housing so that it can rotate around a horizontal first axis (50) and supports a roller (51) that remains in contact with the saw blade (3) and rotates around a horizontal second axis (55), which oscillation mechanism also has a fork lever (6) that periodically deflects the roller lever (5), an adaptive adjustment of the forward saw progress to the advancing force of the compass saw machine (1) is achieved by virtue of the fact that the oscillation mechanism produces an oscillation of the saw blade (3) as a function of the pressure.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: October 6, 2009
    Assignee: Robert Bosch GmbH
    Inventor: Aldo Di Nicolantonio
  • Publication number: 20080011142
    Abstract: A cutting tool assembly is provided for removing flash portions and gates from a molded article. The cutting tool assembly includes a holder device including an upper plate, a cylindrical collar, and a bearing disposed between the upper plate and the cylindrical collar to allow movement of the cylindrical collar relative to the upper plate. The cutting tool assembly further includes a cutting member fixedly secured to the cylindrical collar wherein movement of the cylindrical collar relative to the upper plate provides the cutting member with degrees of rotational freedom to float relative to the molded article during trimming of the flash portions and gates.
    Type: Application
    Filed: July 11, 2007
    Publication date: January 17, 2008
    Inventors: Patrick Chi-Tak Cheung, Paul Arthur Trudeau
  • Patent number: 7290343
    Abstract: A motor-driven saw has a gearing housing (4), which has at least two housing parts (6, 8), a stroke bar (10), which in operation executes a stroke movement in the direction of a stroke axis (26), and a reciprocating movement generator (36) that can be turned on or off, by virtue of which the stroke movement is superimposed with a reciprocating movement executed transverse to the stroke axis (26). All bearing zones (30, 44, 62) over which the reciprocating movement generator (36) is supported on the gearing housing (4) in a preferred direction of advance (16) of the saw, are arranged in the same carrying housing part (6).
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: November 6, 2007
    Assignee: Hilti Aktiengsellschaft
    Inventor: Markus Hartmann
  • Patent number: 6041686
    Abstract: The invention relates to a microtome having a blade oscillating transverse to the direction of advancing the cut, for sections on soft tissue samples. The oscillation frequency of the blade is controlled variably by the rotational speed of an electric motor. At the same time, the oscillation amplitude of the blade is also adjustable variably with the aid of an adjustable eccentric or a displacement device. This makes individual adjustment to the consistency of the tissue sample possible, which leads to improved quality of the microtome sections, in particular to a reduction in the waviness of the sections. This makes significantly thinner microtome sections possible, with corresponding advantages during microscopy.
    Type: Grant
    Filed: October 30, 1997
    Date of Patent: March 28, 2000
    Assignee: Leica Mikrosysteme Aktiengesellschaft
    Inventors: Reinhardt Lihl, Anton Lang
  • Patent number: 5957025
    Abstract: The present invention provides a bale slicer that processes large forage bales into a form useable by TMR mixing systems. The bale slicer is simple to operate, reduces the power required to process a bale as compared to other bale processors and processes forage bales into a size suitable for use as feed. The bale slicer includes a main frame, bale chamber, platforms, a cutting mechanism, and power mechanism. The bale slicer utilizes a slicing motion by the cutting mechanism to process the large forage bales. The forage bale to be processed remains stationary and is held in its compressed form by the bale chamber during slicing. The cutting mechanism passes by the bale chamber in order to slice the bale. At the end of each slice made by the cutting mechanism, the forage falls to the floor and the bale drops down in the bale chamber in preparation for the return pass by the cutting mechanism. The fallen forage is then ready to be transported to a TMR mixer.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: September 28, 1999
    Assignee: The Penn State Research Foundation
    Inventors: Dennis R. Buckmaster, Kevin M. Smith
  • Patent number: 5888268
    Abstract: A glass-plate working apparatus (A) includes a base (2) on which a glass plate (1) is placed; Y-direction movable bases (3) and (4) which are supported by the base (2) movably in a Y-direction perpendicular to an X-direction; a Y-direction moving device (5) for moving the movable bases (3) and (4) in the Y-direction; a frame (8) which is supported by the Y-direction movable bases (3) and (4) via scuffing preventing devices (6) and (7); an X-direction movable base (9) which is supported by the frame (8) movably in the X-direction; an X-direction moving device (10) for moving the X-direction movable base (9) in the X-direction; and a working head (12) mounted on the X-direction movable base (9) so as to form a cut line (11) for bend-breaking on the glass plate (1).
    Type: Grant
    Filed: January 27, 1997
    Date of Patent: March 30, 1999
    Assignee: Bando Kiko Co., Ltd.
    Inventor: Shigeru Bando
  • Patent number: 5598636
    Abstract: An apparatus for reciprocatingly orbiting a saw blade with respect to a workpiece is provided. The saw blade is cammingly driven through a cam track to reciprocate the saw blade generally along a first axis to saw the workpiece. The saw blade is contemporaneously driven through a bearing to move the saw blade about a pivotal axis to space the saw blade from the workpiece when it is not being sawed. Cam tracks of irregular configurations are provided for improving cutting efficiency.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: February 4, 1997
    Assignee: Ryobi Motor Products
    Inventor: Timothy J. Stolzer
  • Patent number: 5170564
    Abstract: A swinging saw has a saw blade performing a working movement with a superimposed swinging movement, a displacement rod supporting the saw blade and performing a swinging movement, a displacement rod support having an opening opening through which the displacement rod is guided. The displacement rod is guided such that relative movement, or play, is provided between the guide and the displacement rod in the swinging plane while play is prevented in a plane transverse to the swinging plane.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: December 15, 1992
    Assignee: Scintilla AG
    Inventor: Hans Kaiser
  • Patent number: 4628459
    Abstract: A circuit arrangement including a computer is built in an electrical jig saw where various data or information, such as the sort of the material of the workpiece, the thickness of the workpiece, desired degree of finish and way of cutting, are manually inputted via a keyboard so that the computer selects and determines optimum working condition, such as the sort of blade to be used, the locus of the blade, blade strokes per minute which is in proportion to the motor speed, and the necessity of application of coolant oil. The circuit arrangement also comprises circuitry for automatically controlling the rotational speed of the motor of the jig saw so that an actual speed of the blade equals a desired speed represented by strokes per minute. A display unit is coupled with the computer for indicating input and output data of the computer for supplying visual information to the user of the jig saw.
    Type: Grant
    Filed: March 7, 1984
    Date of Patent: December 9, 1986
    Assignee: Hitachi Koki Company, Limited
    Inventors: Shigeru Shinohara, Shun Suzuki, Tatsuo Innami
  • Patent number: 4308852
    Abstract: An apparatus for sawing different kinds of materials has a supporting frame including a girder-type construction defining an opening for the feed-through of materials to be cut in longitudinal direction by a saw blade. A supporting platform for materials to be cut includes a carriage platform for materials to be cut includes a carriage displaceable in longitudinal direction, and a clamping arrangement for materials to be cut is located on the carriage. At least one supporting bracket is positioned laterally of the saw blade in front and back regions of the frame and mounted on said carriage, and an upper and lower cross-beam is provided for each supporting bracket, with each lower cross-beam being arranged at a distance from the carrier. Vertically movable rods are arranged between the upper and lower cross-beams and carry a clamping device for materials to be cut. The saw blades may be slanted for increased efficiency and durability.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: January 5, 1982
    Inventor: Siegfried Gebhart
  • Patent number: 4255858
    Abstract: The blade of a jig saw is mounted in a holder which is moved up and down by a rotary eccentric. A stack of leaf springs is cantilevered on the frame of the machine and is attached rigidly to the holder to cause the blade to move in a substantially elliptical orbit.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 17, 1981
    Inventor: Sidney A. Getts
  • Patent number: 4240204
    Abstract: A portable electric jig saw incorporating an improved lightweight, one-piece saw blade carrier, and an improved floating three-point carrier guide arrangement. The invention is disclosed embodied in both non-orbital and adjustable orbit type jig saws.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: December 23, 1980
    Assignee: Black & Decker Inc.
    Inventors: Richard E. Walton, II, William D. Sauerwein
  • Patent number: 4238884
    Abstract: A portable electric orbital jig saw of the adjustable orbit type incorporating an improved manually adjustable orbit drive mechanism which transmits smooth, continuous orbital motion to a reciprocating saw blade with no lost motion, from a full orbit mode operation to a zero orbit mode operation in which the saw blade reciprocates along a straight line. The present orbital drive mechanism includes levers operatively connected to one another in all operative positions thereof, but adjustable to vary the mechanical advantage thereof to thereby vary the degree of orbital motion of the saw blade.
    Type: Grant
    Filed: June 19, 1979
    Date of Patent: December 16, 1980
    Assignee: Black & Decker Inc.
    Inventor: Richard E. Walton, II