Patents Assigned to Metabowerke GmbH & Co.
  • Patent number: 6527630
    Abstract: An electrical hand tool is proposed, whose handle, with is rotatably maintained on the motor housing, and has a maintenance opening. By means of this, the structural length of the hand tool is reduced, servicing is simplified and the production costs are lowered.
    Type: Grant
    Filed: December 11, 2000
    Date of Patent: March 4, 2003
    Assignee: Metabowerke GmbH & Co.
    Inventors: Reiner Mannsperger, Thomas Tiefenbach
  • Patent number: 6380702
    Abstract: The invention relates to a control system for a commutator motor which is operated by phase-fired control. Allocation of a first and second control device in a single operating state without transition makes it possible to obtain constant jolting rotation of said motor by continuously varied cutting of the half-waves into first and second area sections (8,7) of an alternative current voltage. The inventive type of control system can be used advantageously in electric screwing or drilling tools.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: April 30, 2002
    Assignee: Metabowerke GmbH & Co.
    Inventor: Hans Hermann Rottmerhusen
  • Publication number: 20010014576
    Abstract: An electrical hand tool is proposed, whose handle (10), with is rotatably maintained on the motor housing (4), has a maintenance opening (18). By means of this, the structural length of the hand tool is reduced, servicing is simplified and the production costs are lowered.
    Type: Application
    Filed: December 11, 2000
    Publication date: August 16, 2001
    Applicant: Metabowerke GmbH & Co.
    Inventors: Reiner Mannsperger, Thomas Tiefenbach
  • Patent number: 6190099
    Abstract: The invention relates to a motor-driven hand tool for machining of workpieces, in particular planar workpieces, having a guide surface which can be placed on the workpiece to be treated, and a face milling cutter for processing which projects past the guide surface, and which has an axis of rotation extending perpendicularly to the guide surface.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: February 20, 2001
    Assignee: Metabowerke GmbH & Co.
    Inventors: Manfred Schulz, Klaus Bartmann, Ralf Vollweiter
  • Patent number: 6148931
    Abstract: A motor-driven hand tool, such as an eccentric grinder, angular grinder or sander, with a removable grip; for easier handling of the tool. The tool is improved by providing the grip with a securing element, which is disposed in a manipulation region of the grip and is movable relative to the grip, in particular being rotatable, so as to manually mount or release the grip.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: November 21, 2000
    Assignee: Metabowerke GmbH & Co.
    Inventors: Oliver Nyber, Walter Penka
  • Patent number: 6112830
    Abstract: The invention concerns a drill hammer having an air cushion percussion mechanism with which an energizing bushing (24) is disposed concentric to the drill tool axis (10) and forms a cavity (26) containing the air cushion in which a percussion piston (28) can move back and forth, and with a wobble drive device (34) for moving the energizing bushing (24) back and forth in the direction of the drill tool axis (10), the rotation element (36) of which driving the nutating disk (42) being disposed for rotational drive parallel to the drill tool axis (10) at a separation therefrom. In order to increase the smoothness of running of the drill hammer, a weight (50) is disposed under restrictive guidance for linear back and forth motion parallel to the drill tool axis (10) in response to the action of the nutating disk (42), at that side of the nutating disk (42) lying diametrically across from the energizing bushing (24).
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: September 5, 2000
    Assignee: Metabowerke GmbH & Co.
    Inventors: Peter Ziegler, Stephan Kuchinke
  • Patent number: 6027535
    Abstract: A charger for a rechargeable battery pack of a power tool includes a housing and a printed circuit board on which electrical components are mounted. The printed circuit board being mounted in the housing. The housing includes vent openings disposed below the printed circuit board and vent openings disposed above the printed circuit board.
    Type: Grant
    Filed: February 27, 1997
    Date of Patent: February 22, 2000
    Assignee: Metabowerke GmbH & Co.
    Inventors: Robert Eberle, Ulrich Haller
  • Patent number: 5963011
    Abstract: The present invention relates to an interchangeable battery for a battery-operated electric tool with a contact arrangement which, in order to charge the battery cell or cells by means of a charger having open counter-contacts, has at least a first freely accessible contact area per contact by means of which the battery can be connected to the counter-contact of the charger, the interchangeable battery is constructed according to the invention in such a way that it can also be charged by means of a charger with a screened contact region in that either the contacts of the battery are contact pins or blades which can be inserted into a contact region screened as far as a closely restricted aperture of a charger with screened counter-contacts or the contacts of the battery have a region screened by a wall which has such a wall thickness that the contacts with the entire wall can be inserted into the screened contact region.
    Type: Grant
    Filed: April 24, 1998
    Date of Patent: October 5, 1999
    Assignee: Metabowerke GmbH & Co.
    Inventors: Ulrich Haller, Robert Eberle
  • Patent number: 5856731
    Abstract: A universal motor which operates an electric tool is controlled by a phase-gating controller for determining variable rotational speeds. The phase-gating controller can be switched over to wave-packet-controlled phase-gating control mode in order to be able to switch over between a continuous speed-torque characteristic and pulsating operation.
    Type: Grant
    Filed: January 14, 1997
    Date of Patent: January 5, 1999
    Assignee: Metabowerke GmbH & Co.
    Inventor: Hermann Rottmerhusen
  • Patent number: 5833247
    Abstract: A drill chuck includes clamping jaws guided in openings inclined toward each other in a chuck body and displaced via a manually rotatable clamping sleeve and a blocking sleeve, which is axially displaceable and partially rotated in relation to the chuck body. The blocking sleeve can be connected with the clamping sleeve by being displaced into its axial end position. A spring operating in the circumferential direction between the chuck body and the blocking sleeve, which prestresses the blocking sleeve in relation to the chuck body in a direction corresponding to the closing direction of the clamping sleeve is provided.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: November 10, 1998
    Assignee: Metabowerke GmbH & Co.
    Inventors: Heinz Deuschle, Manfred Schulz
  • Patent number: 5722309
    Abstract: An apparatus is provided for attachment of a saw blade to the plunger of a jigsaw. The apparatus includes a clamping body and a clamping member which includes a lever which has an eccentric surface which bears against the saw blade. A tension spring utilizes the mechanical advantage of the lever to provide increased holding force on the saw blade.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: March 3, 1998
    Assignee: Metabowerke GmbH & Co.
    Inventor: Jorg Seyerle
  • Patent number: 5697279
    Abstract: An apparatus includes a clamping body which includes a lever which bears against a saw blade inserted into the clamping body. A tension spring is connected to the lever and to the clamping body and the tension spring bears against a pin which is slideably mounted in the clamping body. The pin bears against the saw blade and moves the saw blade out of engagement with form-lock projections in the clamping body when the lever is moved to an unlocked position.
    Type: Grant
    Filed: June 13, 1996
    Date of Patent: December 16, 1997
    Assignee: Metabowerke GmbH & Co.
    Inventors: Albrecht Schnizler, Manfred Schulz, Jorg Seyerle
  • Patent number: 5646497
    Abstract: A switching arrangement for controlling the rpm constancy between idling and full power of universal motors in electric tools has a phase-shift control (IC) which, for setting the set value, is connected at an output via an adjusting resistor with a tap of a voltage divider, and whose trigger output controls an electronic power switch disposed in the electrical circuit of the motor. In order to obtain an optimal readjustment of the load in the entire provided rpm range by means of such a switching arrangement, it is provided that between the tap of the voltage divider and the one output of the phase-control circuit (IC) at least one further adjusting resistor is provided, with which a preferably electronic circuit device is switched in parallel, which is controlled from a point in the voltage divider.
    Type: Grant
    Filed: March 8, 1995
    Date of Patent: July 8, 1997
    Assignee: Metabowerke GmbH & Co.
    Inventor: Wolfgang Stickel
  • Patent number: 5545078
    Abstract: In a quick-action clamping device for axially securing a disk-shaped tool, particularly a grinding wheel on a flange of a driven spindle that has a clamping part provided with a thread that can be screwed to the thread of the spindle. The disk-shaped tool is held clamped between contact surfaces of the flange and the clamping part whose spacing from one another can be changed. It is proposed to avoid complete release of the tension nut during spindle stop operation in that the tool is pressed against the flange by means of at least one additional holding surface via a spring force, and that this additional holding surface is connected to the spindle in a manner secured against relative rotation.
    Type: Grant
    Filed: November 16, 1993
    Date of Patent: August 13, 1996
    Assignee: Metabowerke GmbH & Co.
    Inventors: Manfred Schulz, Gerhard Waldner, Alfred Wagemann
  • Patent number: 5499830
    Abstract: A chuck has a chuck body and a clamping sleeve as well as tool clamping jaws which are held in oblique guides and which, by rotation of the chuck body, can be displaced relative to the clamping sleeve. It furthermore has a tightening device which has a compression spring, which acts in the direction of rotation, an intermediate ring acted on thereby which is rotatable with respect to the chuck body and the clamping sleeve, an unlockable locking member on the intermediate ring, and an outside, rotatable gripping sleeve having an inner stop for the intermediate ring.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: March 19, 1996
    Assignee: Metabowerke GmbH & Co.
    Inventor: Albrecht Schnizler
  • Patent number: 5493930
    Abstract: A gearwheel has a coaxial trough which is closed by a first lid to form an inner storage chamber for grease and is also closed by a second lid to form an outer storage chamber. The circumferential surfaces of the first and second lids sealingly adjoin the outer wall of the coaxial trough and each of the lids has a narrow groove for controlled metering of the grease.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: February 27, 1996
    Assignee: Metabowerke GmbH & Co.
    Inventor: Albrecht Schnizler
  • Patent number: 5332163
    Abstract: A motor-driven machine with integrated suction duct removal of chips drawn or sucked into the machine, comprising: a drive motor; a suction removal fan including a fan wheel connected to and driven by the drive motor, the fan wheel having a plurality of blades; an air guide housing within which the blades rotate, the air guide housing having an inlet and an outlet, and defining a front wall; a suction conduit associated with the inlet of the air guide housing the suction conduit serving to conduct air and chips to the air guide housing; and a disintegrating element situated at the inlet of the air guide housing and in communication with the suction conduit, and extending between the front wall and the blades, the disintegrating element being fixed relative to the air guide housing. The blades of the fan wheel extend axially, face the front wall and define a gap with the disintegrating element.
    Type: Grant
    Filed: January 27, 1993
    Date of Patent: July 26, 1994
    Assignee: Metabowerke GmbH & Co.
    Inventor: Albrecht Schnizler
  • Patent number: 5157807
    Abstract: A vibration-cushioned handle, to be clamped in at one end, is designed for an electrical tool or the like. The handle has a coupling at one end for firm attachment to the body of the tool, and a coaxial handle sleeve. At least one cushioned spring element is located between the sleeve and the coupling. The handle provides good reduction of vibration, and sufficient sturdiness of the handle connection on the other, while being of simple construction. To this purpose, the spring element has different spring rigidities, on the one side in the radial direction relative to the axis of the handle sleeve, and on the other side in the direction of a pendulous or Cardanic excursion of the handle sleeve, around a pole lying on their axis.
    Type: Grant
    Filed: April 3, 1991
    Date of Patent: October 27, 1992
    Assignee: Metabowerke GmbH & Co.
    Inventors: Michael Keller, Uwe Bunz
  • Patent number: D438077
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: February 27, 2001
    Assignee: Metabowerke GmbH & Co.
    Inventor: J├╝rgen Schmid
  • Patent number: D585713
    Type: Grant
    Filed: January 25, 2008
    Date of Patent: February 3, 2009
    Assignee: Metabowerke GmbH & Co.
    Inventors: Peter Boulton, Peter Theiss