Patents by Inventor Hartmut Pallmann

Hartmut Pallmann 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: 10722897
    Abstract: A device for the comminution of free-flowing feed material is provided that includes a housing enclosing a comminution chamber which contains a rotor that rotates around an axis, and has comminution tools over its circumference. A feeding device to transport the feed material to the comminution chamber in form of a gas-solid matter mixture, wherein the feeding device features a pneumatic sieve passage which uses the effect of gravity for removal of foreign particles from the feed material. In order to operate both the sieve passage and the device under optimal process parameters, the device features at least one inlet port for the supply of secondary air, wherein the at least one inlet port flows into the gas-solid matter mixture downstream of the sieve passage.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: July 28, 2020
    Assignee: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Patent number: 10632471
    Abstract: A device for processing feed material, with a housing enclosing a processing space in which a rotor rotatable about the axis of rotation is arranged. The rotor has a rotor disk at which circumference a plurality of axially disposed impact plates is arranged uniformly distributed. A coaxially arranged processing path surrounds the impact plates while maintaining a working gap. Via a material inlet, the device is fed in the axial direction with feed material centrally ending in the processing space, which upon deflection in the region of the rotor disk is fed in the radial direction to the working gap. To ensure complete and gentle processing of the feed material while maintaining its original taste, smell and color, the processing path is part of a basket rotating about the rotational axis.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: April 28, 2020
    Assignee: PALLMANN Maschinenfabrik GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Patent number: 10625270
    Abstract: A disc chipper for crushing lumpy feed material. The disc chipper has a crushing rotor driven by a drive unit, rotating about an axle, including a rotor shaft and a chipping disc connected in a rotationally fixed manner with the rotor shaft. The chipping disc has chipping knives, which are transversely aligned in the disc plane to the rotational direction and which cooperate with stationary counter knives for the comminution of the feed material. In order to ensure a secure and accurate fastening of the chipping disc on the rotor shaft and to thereby conduct the driving force from the rotor shaft to the chipping disc without damage, the rotor shaft in the region of the bearing seat for the chipping disc has a polygonal cross section and the chipping disc has a centric through-hole form-locking thereto.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: April 21, 2020
    Assignee: Pallmann Maschinenfabrik GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Patent number: 10625267
    Abstract: A device and a plate-like grinding tool for grinding feed material that has a housing extending along an axis of rotation, in which a rotor rotationally driven about the rotation axis is arranged and includes a plurality of axially parallel grinding tools that are surrounded by a stator with stator tools. The effective edges of the grinding tools are arranged radially spaced from the stator tools by forming a grinding gap extending over an axial length of the grinding gap. The material is fed into the grinding gap on an inlet side and exits from the grinding gap on an outlet side. The axially extending effective edges of the grinding tools are divided in the axial direction into at least two first sections, each with a first radial distance from the rotational axis and into at least one second section with a second radial distance from the axis of rotation.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: April 21, 2020
    Assignee: Pallmann Maschinenfabrik GmbH & Co. KG
    Inventors: Hartmut Pallmann, Berthold Alles
  • Patent number: 10486163
    Abstract: A comminuting unit for a comminuting device for comminuting feed material, in particular a knife basket, with a plurality of rod-shaped blade supports concentrically arranged about an axis, which at their ends are each rigidly connected with a support ring or supporting disc that are concentric to the axis. At least one of the blade supports has a receptacle for securing a knife assembly having a chipping blade, wherein the blades of all chipping blades have a common radial distance from the axis. Between the blade support and the knife assembly at least one adjusting device is provided, with which the radial distance is adjustable. The receptacle has a receiving strip and a clamping strip, which are mounted in axially parallel position detachably on the blade support, the knife assembly being tensioned against the receiving strip via the clamping strip.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: November 26, 2019
    Assignee: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventors: Hartmut Pallmann, Volker Degel
  • Patent number: 10427165
    Abstract: A method for comminuting heat-sensitive feedstock, particularly thermoplastics, rubber, caoutchouc, and elastomers, to a particle size of less than 500 ?m, preferably less than 425 ?m. Process steps are provided to achieve an economic material processing without the use of cryogenic comminution. First, a precomminution of the feedstock to a size smaller than 4 mm is performed in a rotating comminuting device through which a first process gas PG1 flows. Then, a fine grinding is performed of the precomminuted feedstock to a size smaller than 500 ?m, preferably smaller than 425 ?m, in a rotating fine grinding device through which a second process gas PG2 flows. Whereby the temperature of the precomminuted feedstock in the outlet of the fine grinding is regulated in a second control circuit by adding water to the precomminuted feedstock before and/or during and/or after the fine grinding.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: October 1, 2019
    Assignee: PALLMANN MASCHINENFABRIK GmbH & Co., KG
    Inventor: Hartmut Pallmann
  • Patent number: 10376896
    Abstract: A disc chipper for crushing lumpy feed material. The disc chipper has a crushing rotor driven by a drive unit, rotating about an axle, including a rotor shaft and a chipping disc connected in a rotationally fixed manner with the rotor shaft. The chipper disc includes chipping knives, which are transversely aligned in the disc plane to the rotational direction and which cooperate with stationary counter knives for the comminution of the feed material. The drive unit include a primary drive and a secondary drive, which drive the crushing rotor via a transmission, wherein the primary drive is in active operative connection with the crushing rotor during the crushing operation, and the secondary drive during the acceleration process or when readjusting the crushing rotor for purposes of maintenance and repair.
    Type: Grant
    Filed: May 11, 2016
    Date of Patent: August 13, 2019
    Assignee: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Publication number: 20180333890
    Abstract: A device and method for reducing a size of feed material. The device has a knife ring that is stationary within a housing or rotates around an axis. The knife ring has rod-shaped knife carriers that are disposed concentrically around the axis in an axis-parallel position at a mutual circumferential distance from each other and that form an inner circumferential surface of the knife ring with their sides facing the axis. Each knife carrier having a receptacle for fastening a flaking knife. The flaking knife protruding by its edge between two knife carriers into the flaking chamber. A measuring instrument includes at least one distance sensor that measures a distance of the inner circumferential surface and/or the edges of the flaking knives from the at least one distance sensor.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 22, 2018
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut PALLMANN
  • Patent number: 10082334
    Abstract: A device for biomass beneficiation, in particular for the mechanical drying of plant biomass. The device has a press chamber, which can be supplied with biomass via a feed chute and can be emptied via a feedstock outlet. A pressure plate, which for compacting the biomass can be moved by a feed unit against the front wall of the press chamber, the wall lying opposite to the pressure plate, is disposed in the press chamber. In addition, the device has conveys away the liquid phase coming out of the biomass during the compaction. A first pivot bearing, relative to the direction of biomass movement, is provided on which the pressure plate is mounted with its first edge, and a second pivot bearing, on which the pressure plate is mounted with its second edge opposite the first edge, whereby at least the first pivot bearing is movable transverse to the plane of the pressure plate.
    Type: Grant
    Filed: May 12, 2016
    Date of Patent: September 25, 2018
    Assignee: Pallmann Maschinenfabrik GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Patent number: 9993825
    Abstract: A device for comminuting feedstock with a rotor which is disposed within a housing and rotates about an axis of rotation and is equipped over its circumference with comminuting tools. A ring disc is attached to front sides of the rotor in each case concentrically to the axis of rotation. The removal of the sufficiently comminuted material occurs via a screen deck extending over part of the rotor circumference. On axial front sides of the screen deck an arcuate sealing element following the outer circumference of the ring disc is disposed in each case, the element which to form a sealing gap in the plane of the ring disc lies radially opposite to the disc. The sealing effect of the sealing gap between the screen deck and rotor uniformly over the entire length is successfully achieved in this way.
    Type: Grant
    Filed: April 14, 2014
    Date of Patent: June 12, 2018
    Assignee: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Publication number: 20170100720
    Abstract: A device for processing feed material, with a housing enclosing a processing space in which a rotor rotatable about the axis of rotation is arranged. The rotor has a rotor disk at which circumference a plurality of axially disposed impact plates is arranged uniformly distributed. A coaxially arranged processing path surrounds the impact plates while maintaining a working gap. Via a material inlet, the device is fed in the axial direction with feed material centrally ending in the processing space, which upon deflection in the region of the rotor disk is fed in the radial direction to the working gap. To ensure complete and gentle processing of the feed material while maintaining its original taste, smell and color, the processing path is part of a basket rotating about the rotational axis.
    Type: Application
    Filed: October 13, 2016
    Publication date: April 13, 2017
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut PALLMANN
  • Publication number: 20160367996
    Abstract: A device and a plate-like grinding tool for grinding feed material that has a housing extending along an axis of rotation, in which a rotor rotationally driven about the rotation axis is arranged and includes a plurality of axially parallel grinding tools that are surrounded by a stator with stator tools. The effective edges of the grinding tools are arranged radially spaced from the stator tools by forming a grinding gap extending over an axial length of the grinding gap. The material is fed into the grinding gap on an inlet side and exits from the grinding gap on an outlet side. The axially extending effective edges of the grinding tools are divided in the axial direction into at least two first sections, each with a first radial distance from the rotational axis and into at least one second section with a second radial distance from the axis of rotation.
    Type: Application
    Filed: June 15, 2016
    Publication date: December 22, 2016
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventors: Hartmut PALLMANN, Berthold ALLES
  • Publication number: 20160334160
    Abstract: A device for biomass beneficiation, in particular for the mechanical drying of plant biomass. The device has a press chamber, which can be supplied with biomass via a feed chute and can be emptied via a feedstock outlet. A pressure plate, which for compacting the biomass can be moved by a feed unit against the front wall of the press chamber, the wall lying opposite to the pressure plate, is disposed in the press chamber. In addition, the device has conveys away the liquid phase coming out of the biomass during the compaction. A first pivot bearing, relative to the direction of biomass movement, is provided on which the pressure plate is mounted with its first edge, and a second pivot bearing, on which the pressure plate is mounted with its second edge opposite the first edge, whereby at least the first pivot bearing is movable transverse to the plane of the pressure plate.
    Type: Application
    Filed: May 12, 2016
    Publication date: November 17, 2016
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut PALLMANN
  • Publication number: 20160332324
    Abstract: A disc chipper for crushing lumpy feed material. The disc chipper has a crushing rotor driven by a drive unit, rotating about an axle, including a rotor shaft and a chipping disc connected in a rotationally fixed manner with the rotor shaft. The chipping disc has chipping knives, which are transversely aligned in the disc plane to the rotational direction and which cooperate with stationary counter knives for the comminution of the feed material. In order to ensure a secure and accurate fastening of the chipping disc on the rotor shaft and to thereby conduct the driving force from the rotor shaft to the chipping disc without damage, the rotor shaft in the region of the bearing seat for the chipping disc has a polygonal cross section and the chipping disc has a centric through-hole form-locking thereto.
    Type: Application
    Filed: May 11, 2016
    Publication date: November 17, 2016
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut PALLMANN
  • Publication number: 20160332323
    Abstract: A disc chipper for crushing lumpy feed material. The disc chipper has a crushing rotor driven by a drive unit, rotating about an axle, including a rotor shaft and a chipping disc connected in a rotationally fixed manner with the rotor shaft. The chipper disc includes chipping knives, which are transversely aligned in the disc plane to the rotational direction and which cooperate with stationary counter knives for the comminution of the feed material. The drive unit include a primary drive and a secondary drive, which drive the crushing rotor via a transmission, wherein the primary drive is in active operative connection with the crushing rotor during the crushing operation, and the secondary drive during the acceleration process or when readjusting the crushing rotor for purposes of maintenance and repair.
    Type: Application
    Filed: May 11, 2016
    Publication date: November 17, 2016
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut PALLMANN
  • Publication number: 20160325462
    Abstract: A comminuting unit for a comminuting device for comminuting feed material, in particular a knife basket, with a plurality of rod-shaped blade supports concentrically arranged about an axis, which at their ends are each rigidly connected with a support ring or supporting disc that are concentric to the axis. At least one of the blade supports has a receptacle for securing a knife assembly having a chipping blade, wherein the blades of all chipping blades have a common radial distance from the axis. Between the blade support and the knife assembly at least one adjusting device is provided, with which the radial distance is adjustable. The receptacle has a receiving strip and a clamping strip, which are mounted in axially parallel position detachably on the blade support, the knife assembly being tensioned against the receiving strip via the clamping strip.
    Type: Application
    Filed: May 9, 2016
    Publication date: November 10, 2016
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventors: Hartmut PALLMANN, Volker DEGEL
  • Publication number: 20160271619
    Abstract: A method for comminuting heat-sensitive feedstock, particularly thermoplastics, rubber, caoutchouc, and elastomers, to a particle size of less than 500 ?m, preferably less than 425 ?m. Process steps are provided to achieve an economic material processing without the use of cryogenic comminution. First, a precomminution of the feedstock to a size smaller than 4 mm is performed in a rotating comminuting device through which a first process gas PG1 flows. Then, a fine grinding is performed of the precomminuted feedstock to a size smaller than 500 ?m, preferably smaller than 425 ?m, in a rotating fine grinding device through which a second process gas PG2 flows. Whereby the temperature of the precomminuted feedstock in the outlet of the fine grinding is regulated in a second control circuit by adding water to the precomminuted feedstock before and/or during and/or after the fine grinding.
    Type: Application
    Filed: March 16, 2016
    Publication date: September 22, 2016
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut PALLMANN
  • Patent number: 9403168
    Abstract: A device for comminuting feedstock having a rotor, rotating within a housing around an axis, with rotor tools lying within the outer circumferential region on a circumferential ring and a stator, associated with the rotor, with stator tools arranged concentrically in the outer circumferential region and forming a comminuting surface, whereby the rotor tools and the stator tools lie opposite at a distance with the formation of a working gap and the stator tools are formed by segments, which to form the comminuting surface rest on the stator with their rear side and lie with their long sides against one another. The segments are attached to the stator in each case with their first short side and second short side by a positive fit, whereby the stator has a clamping element, which works together with the first short side and/or second short side to clamp the segments against the stator.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: August 2, 2016
    Assignee: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut Pallmann
  • Publication number: 20160121333
    Abstract: A device and a method for processing feed material that has a housing, a material supply channel and a material discharge. The housing is axially divided into a first processing zone in which a rotor rotating around an axis is situated, and a second processing zone which adjoins the first processing zone in the flow direction of the feed material. In order to perform different processing procedures in one device the feed material is subject to a process gas by arranging a hollow body in the housing, coaxially to the axis for the formation of the second processing zone, which outer circumference is radially situated opposite the inner circumference of the housing, and which features at least one port at the end that is facing the rotor. A process gas, which can be fed to the feed material through at least one port, is applied to the hollow body.
    Type: Application
    Filed: November 2, 2015
    Publication date: May 5, 2016
    Applicant: PALLMANN MASCHINENFABRIK GMBH & CO. KG
    Inventor: Hartmut PALLMANN
  • Publication number: 20160059239
    Abstract: A device for the comminution of free-flowing feed material is provided that includes a housing enclosing a comminution chamber which contains a rotor that rotates around an axis, and has comminution tools over its circumference. A feeding device to transport the feed material to the comminution chamber in form of a gas-solid matter mixture, wherein the feeding device features a pneumatic sieve passage which uses the effect of gravity for removal of foreign particles from the feed material. In order to operate both the sieve passage and the device under optimal process parameters, the device features at least one inlet port for the supply of secondary air, wherein the at least one inlet port flows into the gas-solid matter mixture downstream of the sieve passage.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 3, 2016
    Applicant: PALLMANN MASCHINENFABRIK GmbH & Co. KG
    Inventor: Hartmut PALLMANN