Patents Assigned to Volkmann GmbH
  • Patent number: 10427894
    Abstract: A module connector for holding and/or transporting of bulk goods for connecting a first container module to a second container module, the container modules being joined together have an aligned container inner surface, a first seal arranged between the first container module and the second container module, a second seal arranged between the first container module and the second container module, the first seal is arranged in a recess and the second seal in a groove, the first seal forming an inner seal and the second seal forming an outer seal, the second seal produces a sealing of the interconnected container modules especially if the first seal fails, the first seal has at least one crimp region, which is crimped by a first and/or second flange surface such that one end face of the first seal is situated flush and/or aligned with the container inner surface without forming a cavity in the area of the end face of the first seal as well as a seal element for the module connector for the sealing of the conta
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: October 1, 2019
    Assignee: Volkmann GmbH
    Inventor: Konrad Sümmermann
  • Patent number: 8967422
    Abstract: A multilevel container having a circumferentially continuous wall or bottom elements of sheet metal with radially outwardly beaded end faces. The wall and bottom elements are placed on top of each other on butt joints so as to seal the end faces and are detachably braced with a minimum of one neighboring container level. The multilevel container also comprises one or more sealing rings and bracing components that act on neighboring end faces. In order to provide a readily manufacturable and form a stable multilevel container without multiple beads in alternating directions or weldings in the butt joint portions, a separate and independent shape retaining ring is provided. This ring reinforces the container and has shape retaining surfaces on its two end faces. In the region of their end faces, the neighboring wall and bottom elements are set on and tightly braced against the shape retaining surfaces of the reinforcing shape retaining ring.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: March 3, 2015
    Assignee: Volkmann GmbH
    Inventor: Thilo Volkmann
  • Publication number: 20140131349
    Abstract: A multilevel container having a circumferentially continuous wall or bottom elements of sheet metal with radially outwardly beaded end faces. The wall and bottom elements are placed on top of each other on butt joints so as to seal the end faces and are detachably braced with a minimum of one neighboring container level. The multilevel container also comprises one or more sealing rings and bracing components that act on neighboring end faces. In order to provide a readily manufacturable and form a stable multilevel container without multiple beads in alternating directions or weldings in the butt joint portions, a separate and independent shape retaining ring is provided. This ring reinforces the container and has shape retaining surfaces on its two end faces. In the region of their end faces, the neighboring wall and bottom elements are set on and tightly braced against the shape retaining surfaces of the reinforcing shape retaining ring.
    Type: Application
    Filed: January 17, 2014
    Publication date: May 15, 2014
    Applicant: Volkmann GmbH
    Inventor: Thilo Volkmann
  • Patent number: 8349048
    Abstract: The invention relates to a filter arrangement comprising a plate-shaped filter holder (12) provided with at least one stem-type protruberance (13) having an opening (11) said filter holder (12) being used to receive a filter element (14) in a sealed manner for each protuberance on the raw gas side of the filter holder. In order to ensure that the filter is changed easily with sufficient filtering safety, each filter element (14) is provided with an adapter collar (15) comprising at least one limb (15B; 15D) parallel to the protruberances. Said limb can be placed, from the raw gas side, inside or over the protruberance. A sealing arrangement (16) provided comprises sealing elements (16A, 16B) which are parallel to both the plates and to the protruberances and are used for the at least partial join between the protruberance and the adapter collar.
    Type: Grant
    Filed: May 16, 2008
    Date of Patent: January 8, 2013
    Assignee: Volkmann GmbH
    Inventor: Thilo Volkmann
  • Patent number: 8157483
    Abstract: Disclosed is a method for rendering vacuum conveyors inert, the vacuum conveyors including at least one intake device (30), a discharge device (40), a separating vessel (100), a vacuum pump device (20), and a system for feeding inert fluid into the separating vessel (100). An inert fluid is fed into the at least one separating vessel (100) below the free surface of a separated material (102) during inertization. A corresponding vacuum conveyor (10) which can be rendered inert includes a system for feeding inert fluid below the free surface (103) of a separated material on and/or in the at least one separating vessel (100).
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: April 17, 2012
    Assignee: Volkmann GmbH
    Inventor: Thilo Volkmann
  • Publication number: 20110192126
    Abstract: The invention relates to a filter arrangement comprising a plate-shaped filter holder (12) provided with at least one stem-type protruberance (13) having an opening (11) said filter holder (12) being used to receive a filter element (14) in a sealed manner for each protuberance on the raw gas side of the filter holder. In order to ensure that the filter is changed easily with sufficient filtering safety, each filter element (14) is provided with an adapter collar (15) comprising at least one limb (15B; 15D) parallel to the protruberances. Said limb can be placed, from the raw gas side, inside or over the protruberance. A sealing arrangement (16) provided comprises sealing elements (16A, 16B) which are parallel to both the plates and to the protruberances and are used for the at least partial join between the protruberance and the adapter collar.
    Type: Application
    Filed: May 16, 2008
    Publication date: August 11, 2011
    Applicant: VOLKMANN GMBH
    Inventor: Thilo Volkmann
  • Publication number: 20080145155
    Abstract: Disclosed is a method for rendering vacuum conveyors inert, said vacuum conveyors comprising at least one intake device (30), a discharge device (40), a separating vessel (100), a vacuum pump device (20), and means for feeding inert fluid into the separating vessel (100). According to the inventive method, an inert fluid is fed into the at least one separating vessel (100) below the free surface of a separated material (102) during inertization. Also disclosed is a corresponding vacuum conveyor (10) which can be rendered inert and in which the means for feeding inert fluid below the free surface (103) of a separated material are provided on and/or in the at least one separating vessel (100).
    Type: Application
    Filed: April 20, 2005
    Publication date: June 19, 2008
    Applicant: VOLKMANN GMBH
    Inventor: Thilo Volkmann
  • Patent number: 7354469
    Abstract: A Vacuum conveyor device (10) with a multi-stage filter system, has at least one inner filter (10A), one outer filter (10B), and one filter adapter (20) especially for air-tight and/or fluid-tight insertion of at least one of the filters, for which the outer filter is arranged up-stream of the inner filter. In order of preparing a filter system for a vacuum conveyor device, which features both the cleaning-related elements of conventional filters and also the safety-related advantages of multi-stage systems, but which remains compact in structure, the one or more inner filters (10A) are used as carrier units for the one or more outer filters (10B) that can be mounted on or inserted into these inner filters and can be connected or are connected to the filter adapters (20).
    Type: Grant
    Filed: August 5, 2004
    Date of Patent: April 8, 2008
    Assignee: Volkmann GmbH
    Inventor: Thilo Volkmann
  • Patent number: 6848641
    Abstract: An actuating valve has two relay valves connected to a compressed air source and a pneumatic cylinder with two pressure chambers. When one relay valve is actuated, one pressure chamber is pressure-loaded and the other is relieved. Two 3/2 port directional control valves are arranged upstream of the pneumatic cylinder. Two check valves are positioned in branch lines connecting the relay valves and the directional control valves. A control line connects the branch line to the other directional control valve, respectively. The directional control valves are moveable between a first position allowing compressed air to pass and a pressure relief position. When the relay valves are inactive, the directional control valves are in the first position and the relay valves are in a venting position for the branch lines. When one relay valve is actuated, it assumes a position allowing passage of air to the branch line connected to it.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: February 1, 2005
    Assignee: Volkmann GmbH
    Inventors: Ralf Lohmann, Georg Heinen, Jörg Zischewski
  • Publication number: 20040238536
    Abstract: A multilevel container is disclosed which comprises circumferentially continuous wall or bottom elements of sheet metal with radially outwardly beaded end faces. The wall and bottom elements are placed on top of each other on butt joints so as to seal the end faces and are detachably braced with a minimum of one neighboring container level. The multilevel container also comprises one or more sealing rings and bracing components that act on neighboring end faces. In order to provide a readily manufacturable and form a stable multilevel container without multiple beads in alternating directions or weldings in the butt joint portions, a separate and independent shape retaining ring is provided. This ring reinforces the container and has shape retaining surfaces on its two end faces. In the region of their end faces, the neighboring wall and bottom elements are set on and tightly braced against the shape retaining surfaces of the reinforcing shape retaining ring.
    Type: Application
    Filed: May 13, 2004
    Publication date: December 2, 2004
    Applicant: Volkmann GmbH
    Inventor: Thilo Volkmann
  • Patent number: 6786441
    Abstract: A bobbin creel is supported on a holder so as to be pivotable by a four-bar linkage arranged on the machine frame of a textile machine. The holder forms the stationary member of the four-bar linkage. The bobbin creel is pivotable from a lower loading position into an upper operating position by a pneumatic cylinder connected with one end on the holder and with the other end to one of the movable four-bar linkage members. For pivoting the bobbin creel from the upper operating position into the lower loading position, the pneumatic cylinder is a bidirectional pneumatic cylinder loadable at both ends with compressed air and a correlated actuating valve.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: September 7, 2004
    Assignee: Volkmann GmbH
    Inventors: Markus Osterloh, Ingo Filz
  • Publication number: 20030209001
    Abstract: A twisting spindle has a spindle pot whose top part is formed by a spindle cover and at its upper side is provided with a centrally arranged thread guide or centering eye. The thread guide or centering eye has a lateral slot provided with guide surfaces. The lateral slot opens into an operating opening arranged in the upper side of the cover and automatically guides a thread placed into the operating opening into the central opening of the thread guide.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 13, 2003
    Applicant: VOLKMANN GMBH
    Inventor: Dieter Schacht
  • Publication number: 20030201354
    Abstract: A bobbin creel is supported on a holder so as to be pivotable by a four-bar linkage arranged on the machine frame of a textile machine. The holder forms the stationary member of the four-bar linkage. The bobbin creel is pivotable from a lower loading position into an upper operating position by a pneumatic cylinder connected with one end on the holder and with the other end to one of the movable four-bar linkage members. For pivoting the bobbin creel from the upper operating position into the lower loading position, the pneumatic cylinder is a bidirectional pneumatic cylinder loadable at both ends with compressed air and a correlated actuating valve.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 30, 2003
    Applicant: VOLKMANN GMBH
    Inventors: Markus Osterloh, Ingo Filz
  • Publication number: 20030201355
    Abstract: An actuating valve has two relay valves connected to a compressed air source and a pneumatic cylinder with two pressure chambers. When one relay valve is actuated, one pressure chamber is pressure-loaded and the other is relieved. Two 3/2 port directional control valves are arranged upstream of the pneumatic cylinder. Two check valves are positioned in branch lines connecting the relay valves and the directional control valves. A control line connects the branch line to the other directional control valve, respectively. The directional control valves are moveable between a first position allowing compressed air to pass and a pressure relief position. When the relay valves are inactive, the directional control valves are in the first position and the relay valves are in a venting position for the branch lines. When one relay valve is actuated, it assumes a position allowing passage of air to the branch line connected to it.
    Type: Application
    Filed: April 25, 2003
    Publication date: October 30, 2003
    Applicant: Volkmann GmbH
    Inventors: Ralf Lohmann, Georg Heinen, Jorg Zischewski
  • Patent number: 6484963
    Abstract: A winding frame is provided which is swingably mountable on a machine frame and operable to support a rotatably driveable winding core for the winding of a filament thereon. The winding frame includes a damping apparatus for opposing unscheduled swing movements of the winding frame during regular winding of a filament onto the winding core.
    Type: Grant
    Filed: May 26, 2000
    Date of Patent: November 26, 2002
    Assignee: Volkmann GmbH
    Inventor: Ralf Lohmann
  • Patent number: 6425236
    Abstract: A cabling and yarn double-twisting spindle having pneumatic assistance for a threading up of the yarns to be handled by the spindle is provided. The spindle includes a shaft rotatably supportable in a support hub on a spindle bank. The shaft has a central, axially extending shaft bore, and package top. The package top is secured against rotation and has a hollow spindle axial portion disposed in communication with the spindle shaft bore. A pressurized air injector effects threading up of a yarn component delivered via the hollow spindle axial portion of the package top with another yarn component delivered via the spindle shaft bore, and includes a pressurized air supply conduit in the spindle shaft such that the pulse of air injected by the air injector is operable to produce a suction flow in the hollow spindle axial portion of the package top and in the spindle shaft bore.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: July 30, 2002
    Assignee: Volkmann GmbH
    Inventors: Xavier Roquet, Heinz Stenmans
  • Patent number: 6401443
    Abstract: A two-for-one twisting machine is provided and includes a spindle having a yarn brake. The yarn brake includes a brake housing, a brake cartridge having opposed ends, first and second brake rings disposed within the brake housing, and a support element. The yarn brake also includes a guide conduit extending generally co-axially within the brake housing supporting the support element at a selectively variable axial location within the brake housing and a yarn intake tube extending within the guide conduit. A spring extends between the support element and the second brake ring for resiliently biasing the second brake ring and the brake cartridge is releasably compressively engaged by the first brake ring pressing against one end of the brake cartridge and the second brake ring pressing against the opposite end thereof.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: June 11, 2002
    Assignee: Volkmann GmbH
    Inventor: Heinz Scheufeld
  • Patent number: 6363705
    Abstract: A method for spinning fibers onto the free ends of the two threads of a yarn that is produced during an integrated spinning and twisting process and a two-for-one spinning and twisting apparatus for performing the method are provided. The method includes gripping a twisted yarn, separating two threads of the twisted yarn in a manner such that the twist which was originally present in each individual thread prior to the doubling of the thread with the other thread returns to the now separated thread portion, and forming a thread loop of each separated thread portion. Each thread loop is clamped and respective portions of the two branches of the thread loop extend to a spinning rotor and the spindle hollow axle. Spinning is commenced in coordination with winding and the thread loop is dissolved as the now joined thread is drawn into the spindle hollow axle.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: April 2, 2002
    Assignee: Volkmann GmbH
    Inventor: Siegfried Brenk
  • Publication number: 20020033012
    Abstract: A method and apparatus for the simultaneous centralized controlled adjustment of the braking force of yarn brakes of a plurality of twist spindles of a two-for-one twisting machine are provided, whereby each twist spindle is of the type having, in its hollow shaft, a yarn brake supported between two brake rings with one of the brake rings being rotatable in response to a downward axial pressure thereon in a manner such that the brake ring undergoes a discrete axial displacement to a new axial position. A support frame to which yarn balloon guides are mounted exerts a downward axial force such that the yarn balloon guides simultaneously exert downward axial pressure on the yarn intake conduits of the twist spindles which, in turn, effects axial displacement of the rotatable and axially adjustable brake ring on the yarn intake conduit of each twist spindle into new axial positions.
    Type: Application
    Filed: September 14, 2001
    Publication date: March 21, 2002
    Applicant: Volkmann GmbH
    Inventor: Heinz W. Kamp
  • Patent number: 6347505
    Abstract: A two-for-one twisting machine is provided and includes includes a spindle having a yarn brake. The yarn brake includes a brake housing, a brake cartridge having opposed ends, first and second brake rings disposed within the brake housing, a guide conduit and a yarn intake tube extending within the guide conduit. A brake cartridge of the yarn brake has a first tube section, a second tube section, and a third tube section disposed axially intermediate the first tube section and the second tube section. The tube sections are all arranged in resiliently biased telescoping manner within one another such that the second tube section is resiliently biased in one axial direction outwardly from the third tube section and the first tube section is resiliently biased outwardly from the third tube section in an opposite axial direction opposite to the one axial direction.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: February 19, 2002
    Assignee: Volkmann GmbH
    Inventor: Heinz Scheufeld