Patents by Inventor Jurgen Liebsch

Jurgen Liebsch 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).

  • Publication number: 20210215361
    Abstract: Fume extraction device, in particular laboratory fume extraction device, including a housing with an operating chamber that is accessible to an operator through an operating hole in the housing; the operating chamber is defined by a base, side walls and a cover; the operating hole and/or at least one fresh air supply hole in the area of the operating hole is/are provided for allowing fresh air to flow into the operating chamber, and at least one waste air hole in the area of the cover is provided for allowing waste air to escape. At least one filter holder for accommodating at least one filter element is placed upstream of the at least one waste air hole; the at least one filter holder is accessible through the operating hole such that the filter element is accessible and replaceable from the operating chamber.
    Type: Application
    Filed: April 18, 2017
    Publication date: July 15, 2021
    Inventor: Jurgen Liebsch
  • Patent number: 10843239
    Abstract: A weighing fume cupboard (1) for weighing pharmaceutically active or toxic substances in a laboratory, comprising a housing (10) which defines a working space (19), wherein a front side of the housing (10) has a working opening (11) which is open at all times during intended use of the weighing fume cupboard (1), a working plate (20) which delimits the working space (19) at the bottom side, an armrest (40) in the region of the working opening (11), and a support (30) which bears the weight of the housing (10), of the working plate (20) and of the armrest (40), wherein, during intended use of the weighing fume cupboard, the working plate (20) is decoupled in terms of shocks and vibrations from the housing (10), from the armrest (40) and from the support (30).
    Type: Grant
    Filed: February 15, 2016
    Date of Patent: November 24, 2020
    Inventor: Jürgen Liebsch
  • Publication number: 20190351466
    Abstract: The present invention relates to a fume cupboard 1 available for a laboratory space, which has a housing 60, in which a work space is located, which is limited on its front side by a front sash 30, on its base by a base plate 34 and by a side wall 36 on each of its sides. Furthermore, the fume cupboard comprises a first hollow profile 10, 10? arranged on a front side of each side wall 36, wherein each hollow profile 10, 10? has a first pressure chamber 10b, 10b?, which is fluidically connected to a plurality of first openings 10d, 10d?, out of which air jet streams in the form of wall jet streams 100 consisting of pressurised air can be emitted along the respective side wall 36 into the work space.
    Type: Application
    Filed: December 28, 2017
    Publication date: November 21, 2019
    Inventors: Bernhard Bobusch, Oliver Krüger, Jürgen Liebsch, Christian Oliver Paschereit, Jens Hermann Wintering
  • Publication number: 20190351465
    Abstract: The present invention relates to a fume cupboard 1 for a laboratory, which fume cupboard has a housing 60 in which a work area is located, delimited in the front by a front sash 30, at the bottom by a bottom plate 34 and on each side by a side wall 36. The fume cupboard 1 further comprises a first hollow profile 10, 10? disposed on a frontal end face of each side wall 36, wherein each first hollow profile 10, 10? contains a first pressure chamber 10b, 10b? which is in fluid communication with a multiplicity of first openings 10d, 10d?, from which air jets in the form of wall jets 100 consisting of compressed air may be output into the work area along the respective side wall 36.
    Type: Application
    Filed: December 28, 2017
    Publication date: November 21, 2019
    Inventors: Jürgen Liebsch, Christian Oliver Paschereit
  • Publication number: 20180161835
    Abstract: A weighing fume cupboard (1) for weighing pharmaceutically active or toxic substances in a laboratory, comprising a housing (10) which defines a working space (19), wherein a front side of the housing (10) has a working opening (11) which is open at all times during intended use of the weighing fume cupboard (1), a working plate (20) which delimits the working space (19) at the bottom side, an armrest (40) in the region of the working opening (11), and a support (30) which bears the weight of the housing (10), of the working plate (20) and of the armrest (40), wherein, during intended use of the weighing fume cupboard, the working plate (20) is decoupled in terms of shocks and vibrations from the housing (10), from the armrest (40) and from the support (30).
    Type: Application
    Filed: February 15, 2016
    Publication date: June 14, 2018
    Inventor: Jürgen Liebsch
  • Publication number: 20180161834
    Abstract: The invention relates to a weighing fume cupboard (1) for weighing pharmaceutically effective or toxic substances in a laboratory, comprising: a housing (10) having a front wall (14), side walls (15) and a rear wall (16) defining a working chamber (19), wherein the front wall (14) of the housing has a working opening (11) that is constantly open during intended use of the weighing fume cupboard (1); a working plate (20) that delimits the working chamber (19) at the base side; and armrest (40) arranged on a front edge of the working plate (20) in the region of the working opening (11) and at a distance from the working plate (20); and a carrier (30) that carries the weight of the housing (10), the working plate (20) and the armrest (40), wherein the armrest (40) extends along the longitudinal direction thereof substantially over the entire width of the weighing fume cupboard (1) and has end sides, and wherein a respective side wall (15), a respective end side of the armrest (40) and the carrier (30) are connec
    Type: Application
    Filed: February 15, 2016
    Publication date: June 14, 2018
    Inventor: Jürgen Liebsch
  • Publication number: 20180164147
    Abstract: The invention relates to a balance enclosure 1 for weighing pharmaceutically active or toxic substances in a laboratory, comprising a housing 10 which defines a working chamber 19. The housing 10 has a constantly open working opening 11 on the front face of the housing when the balance enclosure is used as intended and a transparent front pane 14 which is arranged above the working opening 11, can be pivoted from an open position into a closed position, and is connected to an upper part 12 of the housing 10 by means of a hinge 13. The balance enclosure also comprises a working plate 20 which delimits the working chamber 19 on the base side, and a light source is provided within or on the hinge 13, said light source completely illuminating the working plate 20.
    Type: Application
    Filed: February 16, 2016
    Publication date: June 14, 2018
    Inventor: Jürgen Liebsch
  • Publication number: 20180136034
    Abstract: The invention relates to a weighing take-off (1) for weighing pharmaceutically active or toxic substances in a laboratory, comprising a housing (10), which defines a working space (19), wherein a front side of the housing (10) has a working opening (11) that is always open during proper use of the weighing take-off, a working plate (20), which bounds the working space (19) at the bottom, and an arm rest (40), which is arranged on a front edge of the working plate (20) in the region of the working opening (11), wherein a control panel (42) is integrated in the arm rest (40) in such a way that a surface of the arm rest (40) facing away from the working plate (20) is flush with a surface of the control panel (42).
    Type: Application
    Filed: February 15, 2016
    Publication date: May 17, 2018
    Inventor: Jürgen Liebsch
  • Publication number: 20170080429
    Abstract: The present invention relates to a media supply device for barrier-free, selective supply of laboratory media to at least one school or laboratory workstation. The media supply device comprises a body and a multiplicity of fittings for the supply and removal of laboratory media, which fittings are adjustable in height relative to the body and are coupled to the latter, and it is characterized in that the coupling between the fittings and the body is such that the fittings are movable in rotation about at least one oblique rotation axis deviating from a horizontal and vertical rotation axis.
    Type: Application
    Filed: March 16, 2015
    Publication date: March 23, 2017
    Applicant: WALDNER LABOREINRICHTUNGEN GMBH & CO. KG
    Inventor: Jürgen Liebsch
  • Patent number: 9505043
    Abstract: The invention relates to a laboratory fume cupboard (100) comprising, connected in a moveable manner with a laboratory housing (60), a sash (30) for opening and closing a fume cupboard interior, in which between the sash (30) and a side post (10) of the laboratory housing (60) an air opening (70) is provided which is designed for producing wall flows in the interior of the fume cupboard.
    Type: Grant
    Filed: April 16, 2010
    Date of Patent: November 29, 2016
    Assignee: WALDNER LABOREINRICHTUNGEN GMBH & CO. KG
    Inventor: Jurgen Liebsch
  • Patent number: 9266154
    Abstract: A cabinet with a housing, in which a working chamber (3) is located which is open on one side. In order to reduce the risk of a blow-out of harmful substances and in particular to avoid dead-space areas at the internal surfaces of the side walls and the bottom of the working chamber (3), devices are provided which blow in supply-air jets (21, 22) at an acute angle to the internal surfaces of working chamber (3) in such a way that these supply-air jets (21, 22) lie next to the internal surfaces. Furthermore, an upper free jet (18) ensures that light gases, which form in working chamber (3) above this supporting jet (18), are reliably contained in the upper area of the cabinet and cannot contaminate the lower working area.
    Type: Grant
    Filed: August 14, 2002
    Date of Patent: February 23, 2016
    Assignee: Waldner Laboreinrichtungen GmbH & Co. KG
    Inventors: Ulrich Gartner, Jurgen Liebsch
  • Publication number: 20130047531
    Abstract: Media channel (1) for a laboratory system, more particularly a media cell, media column, suspended media boom or media station, for supplying a laboratory workplace with and/or removing laboratory media comprising a longitudinal profile element (100) which along its longitudinal axis defines a duct (102, 104) for laboratory cables and pipelines and has a supply and/or removal side and at least one panel (2, 2a, 2b), which is in the form of a blank panel or is equipped with at least one function-specific fitting for laboratory media supply and/or removal, whereby the panel (2, 2a, 2b) is detachably connected to the profile element (100) by means of connection elements (121, 125) provided on the supply and/or removal side of the profile element (100), and whereby the profile element (100) and the connection elements (121, 125) are in one piece in the form of a folded metal component.
    Type: Application
    Filed: April 16, 2010
    Publication date: February 28, 2013
    Applicant: WALDNER LABOREINRICHTUNGEN GMBH & CO. KG
    Inventor: Jurgen Liebsch
  • Publication number: 20120100789
    Abstract: The invention relates to a laboratory fume cupboard (100) comprising, connected in a moveable manner with a laboratory housing (60), a sash (30) for opening and closing a fume cupboard interior, in which between the sash (30) and a side post (10) of the laboratory housing (60) an air opening (70) is provided which is designed for producing wall flows in the interior of the fume cupboard.
    Type: Application
    Filed: April 16, 2010
    Publication date: April 26, 2012
    Applicant: WALDNER LABOREINRICHTUNGEN GMBH & CO. KG
    Inventor: Jurgen Liebsch
  • Publication number: 20040242143
    Abstract: A cabinet with a housing, in which a working chamber (3) is located which is open on one side. In order to reduce the risk of a blow-out of harmful substances and in particular to avoid dead-space areas at the internal surfaces of the side walls and the bottom of the working chamber (3), devices are provided which blow in supply-air jets (21, 22) at an acute angle to the internal surfaces of working chamber (3) in such a way that these supply-air jets (21, 22) lie next to the internal surfaces. Furthermore, an upper free jet (18) ensures that light gases, which form in working chamber (3) above this supporting jet (18), are reliably contained in the upper area of the cabinet and cannot contaminate the lower working area.
    Type: Application
    Filed: March 5, 2004
    Publication date: December 2, 2004
    Inventors: Ulrich Gartner, Jurgen Liebsch