Patents by Inventor Bernd Scheit

Bernd Scheit 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: 7228941
    Abstract: The invention relates to a metering device for lubricant having a lubricant reservoir (1), a piston (3), which is arranged on a threaded spindle (2), within the lubricant reservoir and a drive head 4, which has a drive shaft (7) connected to the threaded spindle (2) and an electromechanical drive (5) for actuating the drive shaft. The drive shaft (7) contains a lubricant passage duct (8) which opens into the lubricant storage space of the lubricant reservoir. A ram (9) is inserted into the lubricant passage duct (8) of the drive shaft, said ram having an axial bore (10) with a nonreturn valve (11) on the inlet side, and also a ram head (13) which is arranged in a rotationally fixed manner and is loaded by a compression spring (12). The ram head (13) bears under the effect of the compression spring (12) against a control surface (14) of the drive shaft (7).
    Type: Grant
    Filed: August 10, 2002
    Date of Patent: June 12, 2007
    Assignee: perma-tec GmbH & Co. KG
    Inventors: Michael Weigand, Bernd Scheit, Stefan Brand, Thomas Hildenbrand
  • Patent number: 6601738
    Abstract: A lubricant dispenser comprising a housing, a lubricant supply container, a plunger, a telescopic hollow spindle, and an electromechanical servo-drive for changing the length of the telescopic hollow spindle. One end of the telescopic hollow spindle is fixed on the housing. With its other end, the telescopic hollow spindle cooperates with a plunger containing a passage opening for lubricant. The telescopic hollow spindle has a lubricant passage channel in which at least one check valve is arranged on the inlet side. The telescopic hollow spindle alternately carries out setting strokes of different lengths that increase or reduce the length of the spindle. The setting strokes are coordinated with each other so that with a setting stroke of the telescopic hollow spindle increasing the length of the spindle, a preset amount of lubricant displaced by the movement of the plunger enters the lubricant passage channel through the opening check valve.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: August 5, 2003
    Assignee: perma-tec GmbH & Co. KG
    Inventors: Michael Weigand, Armin Brand, Bernd Scheit, Thomas Hildenbrand
  • Publication number: 20020079336
    Abstract: A lubricant dispenser comprising a housing, a lubricant supply container, a plunger, a telescopic hollow spindle, and an electromechanical servo-drive for changing the length of the telescopic hollow spindle. According to the invention, one end of the telescopic hollow spindle is fixed on the housing. With its other end, the telescopic hollow spindle cooperates with a plunger containing a passage opening for lubricant. The telescopic hollow spindle has a lubricant passage channel in which at least one check valve is arranged on the inlet side. The telescopic hollow spindle alternately carries out setting strokes of different lengths that increase or reduce the length of the spindle. The setting strokes are coordinated with each other so that with a setting stroke of the telescopic hollow spindle increasing the length of the spindle, a preset amount of lubricant displaced by the movement of the plunger enters the lubricant passage channel through the opening check valve.
    Type: Application
    Filed: October 18, 2001
    Publication date: June 27, 2002
    Inventors: Michael Weigand, Armin Brand, Bernd Scheit, Thomas Hildenbrand
  • Patent number: 6216822
    Abstract: An automatic lubricant dispenser has a lower housing part formed with an outlet, a piston displaceable along an axis in the lower part and forming therein a compartment, a spindle extending along the axis, threaded into the piston, having an upper end above the piston provided with a lower coupling half, and a body of fluent lubricant filling the compartment. An upper housing part removably securable to the lower part holds an electrical motor unit having an output shaft projecting downward at the axis and provided with an upper coupling half axially engageable with the lower coupling half. The coupling halves are axially engageable to rotationally couple the motor output shaft to the spindle so that electrical energization of the motor when the coupling halves are engaged displaces the piston and expresses lubricant from the outlet. A sensor connected to the shaft generates an output after a predetermined angular displacement of the shaft.
    Type: Grant
    Filed: October 8, 1999
    Date of Patent: April 17, 2001
    Assignee: Perma-Tec GmbH & Co. KG
    Inventors: Anton May, Ralf Albert, Bernd Scheit, Claus Helbig, Stefan Brand, Susanne Bährend
  • Patent number: 6176348
    Abstract: A lubricating system has a housing formed with an intake passage, a drive shaft extending longitudinally in the housing and carrying a plurality of longitudinally spaced worm gears, and respective pumps juxtaposed with the worm gears in the housing. Each pump has a cylinder fixed in the housing, centered on a respective transverse axis, and forming an intake port connected to the passage and an output port. A cavity-forming piston is rotatable about and reciprocal along the respective transverse axis and a worm wheel on the piston meshes with the respective worm gear. An axially projecting cam ramp on the worm wheel is axially engageable with an abutment on the housing. This abutment can be moved axially and for fixing it in any of a multiplicity of positions for varying axial deflection of the piston. A spring bearing against the piston urges the ramp toward the abutment.
    Type: Grant
    Filed: July 28, 1999
    Date of Patent: January 23, 2001
    Assignee: Perma-Tec GmbH & Co. KG
    Inventors: Karl Grebe, Anton May, Claus Helbig, Bernd Scheit, Stefan Brand, Susanne B{umlaut over (a)}hrend
  • Patent number: 5971229
    Abstract: An automatic lubricant dispenser has a lower housing part formed with an outlet, a piston displaceable along an axis in the lower part and forming therein a compartment, a spindle extending along the axis, threaded into the piston, having an upper end above the piston provided with a lower coupling half, and a body of fluent lubricant filling the compartment and forming with the spindle, piston, and lower housing part a lower subassembly. An upper housing part securable to the lower part via a screwthread forms an upper subassembly. An insert mainly in the upper housing part forms a battery compartment and carries a motor unit having an output shaft projecting downward therefrom at the axis and provided with an upper coupling half axially engageable with the lower coupling half. The coupling halves are axially engageable to rotationally couple the motor output shaft to the spindle.
    Type: Grant
    Filed: November 10, 1997
    Date of Patent: October 26, 1999
    Assignee: Perma-Tec GmbH & Co. KG
    Inventors: Anton May, Claus Helbig, Bernd Scheit, Stefan Brand