Patents by Inventor Bernd Hess
Bernd Hess 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).
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Patent number: 10138888Abstract: A rotor for a vane cell pump—in particular, for a vacuum pump—with a base body that is made of plastic and can be driven by rotation, and that rotates about an axis of rotation during operation, wherein the base body comprises a guiding section for slidably receiving a pump vane and wherein the base body is flanked in the direction of the axis of rotation by a first bearing surface and a second bearing surface, wherein the second bearing surface comprises bearing sections that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation.Type: GrantFiled: July 12, 2016Date of Patent: November 27, 2018Assignee: Joma-Polytec GmbHInventors: Hans-Peter Ott, Bernd Hess, Martin Thoma, Thomas Gulde, Torsten Helle, Freidhelm Pfitzer
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Patent number: 10087930Abstract: A vane for a vane cell vacuum pump. The vane can be rotated about an axis of rotation by a rotor in a pump chamber and guided in the longitudinal direction in the rotor, with an upper side and a lower side to abut against the bottom and the ceiling of the pump chamber, with a rear side opposite a front side to limit the pressure chambers, with at least one face to slidably abut against an inside wall of the pump chamber on the casing side. The vane comprises a base body of a first plastic material and a vane end molded of a second plastic material to the base body forming the face. The base body comprises a mounting section around which the vane end is formed. The mounting section comprises at least one recess transverse to the front side and/or the rear side.Type: GrantFiled: July 11, 2016Date of Patent: October 2, 2018Assignee: Joma-Polytec GmbHInventors: Hans-Peter Ott, Bernd Hess, Stefanie Wuhrer, Martin Thoma, Torsten Helle, Friedhelm Pfitzer
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Patent number: 9651042Abstract: The invention relates to a positive displacement pump, including a pot-shaped housing, a rotor rotatably supported in the housing, and at least one blade movably guided in the rotor, the blade tip of which contacts the inner circumferential wall of the housing and divides the interior into chambers, wherein a locking mechanism that inhibits or brakes the movement of the blade in the rotor is provided.Type: GrantFiled: June 13, 2013Date of Patent: May 16, 2017Assignee: Joma-Polytec GmbHInventors: Andreas Blank, Martin Thoma, Torsten Helle, Hans-Peter Ott, Bernd Hess, Benjamin Kawa, Willi Schneider
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Publication number: 20170016443Abstract: A vane for a vane cell vacuum pump. The vane can be rotated about an axis of rotation by a rotor in a pump chamber and guided in the longitudinal direction in the rotor, with an upper side and a lower side to abut against the bottom and the ceiling of the pump chamber, with a rear side opposite a front side to limit the pressure chambers, with at least one face to slidably abut against an inside wall of the pump chamber on the casing side. The vane comprises a base body of a first plastic material and a vane end molded of a second plastic material to the base body forming the face. The base body comprises a mounting section around which the vane end is formed. The mounting section comprises at least one recess transverse to the front side and/or the rear side.Type: ApplicationFiled: July 11, 2016Publication date: January 19, 2017Inventors: Hans-Peter Ott, Bernd Hess, Stefanie Wuhrer, Martin Thoma, Torsten Helle, Friedhelm Pfitzer
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Publication number: 20170016445Abstract: A rotor for a vane cell pump—in particular, for a vacuum pump—with a base body that is made of plastic and can be driven by rotation, and that rotates about an axis of rotation during operation, wherein the base body comprises a guiding section for slidably receiving a pump vane and wherein the base body is flanked in the direction of the axis of rotation by a first bearing surface and a second bearing surface, wherein the second bearing surface comprises bearing sections that are at a distance from one another and that lie on a circular path that is arranged concentrically to the axis of rotation.Type: ApplicationFiled: July 12, 2016Publication date: January 19, 2017Inventors: Hans-Peter Ott, Bernd Hess, Martin Thoma, Thomas Gulde, Torsten Helle, Friedhelm Pfitzer
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Publication number: 20160010646Abstract: A rotary vane pump for generating a vacuum, having an electric drive with a motor stator and a motor rotor, wherein the motor stator and the motor rotor radially encompass the pump housing. The motor stator is non-rotatably disposed around or on the pump housing. The motor rotor is disposed on the side of the motor stator facing away from the pump housing, such that an overall housing is provided that accommodates the electric drive and the pump housing, and the overall housing has a housing floor and a housing shell, wherein the housing floor, together with the pump housing delimits the pump chamber.Type: ApplicationFiled: July 8, 2015Publication date: January 14, 2016Applicant: JOMA-POLYTEC GMBHInventors: Bernd Hess, Hans-Peter Ott, Martin Thoma, Andreas Blank, Torsten Helle
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Publication number: 20150132169Abstract: The invention relates to a positive displacement pump, including a pot-shaped housing, a rotor rotatably supported in the housing, and at least one blade movably guided in the rotor, the blade tip of which contacts the inner circumferential wall of the housing and divides the interior into chambers, wherein a locking mechanism that inhibits or brakes the movement of the blade in the rotor is provided.Type: ApplicationFiled: June 13, 2013Publication date: May 14, 2015Inventors: Andreas Blank, Martin Thoma, Torsten Helle, Hans-Peter Ott, Bernd Hess, Benjamin Kawa, Willi Schneider
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Patent number: 8794942Abstract: The invention relates to a vacuum pump comprising a cup-shaped housing, a rotor eccentrically mounted for rotation in the housing, and a housing cover closing the cup-shaped housing, wherein the rotor has a rotor shaft that passes through the cup-shaped housing and by which the rotor is driven, wherein the rotor shaft is provided with a bore for delivering a lubricant, and a connection nipple is seated in the free end section of the bore.Type: GrantFiled: July 14, 2010Date of Patent: August 5, 2014Assignee: Joma-Polytec GmbHInventors: Willi Schneider, Bernd Hess
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Patent number: 8740589Abstract: The invention relates to a vacuum pump, in particular a vane cell pump, having a housing in which a suction space is provided, and a housing passage opening into the suction space, wherein a suction non-return valve opening to the outside or into an external vacuum space is arranged in the housing passage, said valve being accommodated in a crucible-shaped housing and the crucible-shaped housing having a housing jacket, wherein the suction non-return valve can be latched in the pump housing passage.Type: GrantFiled: July 24, 2009Date of Patent: June 3, 2014Assignee: Joma-Polytec GmbHInventors: Bernd Hess, Willi Schneider
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Publication number: 20120141313Abstract: The invention relates to a vacuum pump comprising a cup-shaped housing, a rotor eccentrically mounted for rotation in the housing, and a housing cover closing the cup-shaped housing, wherein the rotor has a rotor shaft that passes through the cup-shaped housing and by which the rotor is driven, wherein the rotor shaft is provided with a bore for delivering a lubricant, and a connection nipple is seated in the free end section of the bore.Type: ApplicationFiled: July 14, 2010Publication date: June 7, 2012Applicant: Joma-Polytec GMBHInventors: Willi Schneider, Bernd Hess
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Publication number: 20120141314Abstract: The invention relates to a vacuum pump having a cup-shaped housing, a rotor, eccentrically mounted for rotation in the housing, at least one blade mounted in or on the rotor, and a housing cover closing the cup-shaped housing, wherein the rotor has a rotor shaft that passes through the cup-shaped housing and by which the rotor is driven, wherein the rotor shaft is sealed by means of a seal in the housing.Type: ApplicationFiled: July 14, 2010Publication date: June 7, 2012Applicant: Joma-Polytec GmbhInventor: Bernd Hess
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Publication number: 20110293451Abstract: The invention relates to a vacuum pump, in particular a vane cell pump, having a housing in which a suction space is provided, and a housing passage opening into the suction space, wherein a suction non-return valve opening to the outside or into an external vacuum space is arranged in the housing passage, said valve being accommodated in a crucible-shaped housing and the crucible-shaped housing having a housing jacket, wherein the suction non-return valve can be latched in the pump housing passage.Type: ApplicationFiled: July 24, 2009Publication date: December 1, 2011Inventors: Bernd Hess, Dipl-Ing Willi Schneider
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Publication number: 20110217200Abstract: The invention relates to a vacuum pump, in particular a vane cell pump, having a housing in which a suction space is provided, and a housing passage opening into the suction space, wherein a suction non-return valve opening to the outside or into an external vacuum space is arranged in the housing passage, said valve being accommodated in a pot-shaped housing, the pot-shaped housing having a housing bottom and a housing jacket, wherein the housing bottom is integral with the housing jacket.Type: ApplicationFiled: July 30, 2009Publication date: September 8, 2011Inventors: Bernd Hess, dipl-ing Willi Schneider
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Publication number: 20010055538Abstract: A vane pump or motor has structural features for ensuring a substantially constant relationship between rotor vanes (30) and a surrounding wall 44) of a rotor chamber (15) of a stator (16). This is done by changing shapes of either the surrounding wall or the guide tracks to be out of round such that, during a full rotation, the arrangement of the rotor vanes (30) to the surrounding wall (44) remains the same. That is, a diameter (b) of the rotor chamber (15) in an axial plane (a-a), defined by maximum and minimum radial movement of a rotor vane (30), is greater than a diameter (c) perpendicular thereto, or a diameter (d) of the guide tracks (59) perpendicular to the axial plane is greater than a diameter (e) lying in the axial plane (a-a) of the guide tracks (59). An intake and an exhaust are provided in one of two symmetrical sections of the rotor chamber (15) defined by the axial plane (a-a). Elastic guide rings, rotatable with the rotor, can also be used.Type: ApplicationFiled: January 19, 2001Publication date: December 27, 2001Inventors: Willi Schneider, Bernd Hess