Patents by Inventor Peter Marienfeld
Peter Marienfeld 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: 11377003Abstract: The invention relates to a suspension system (1), preferably a driver seat (1), comprising a first suspension part (10), preferably a frame (10) of the driver seat (1); a second suspension part (11), preferably a seat surface (11) of the driver seat (1), wherein the two suspension parts (10, 11) are movable relative to each other in at least one first spatial direction (Z), preferably in the vertical direction (Z); a kinematic system (12), preferably a scissor kinematic system (12) which is designed to connect the two suspension parts (10, 11) in a movable manner relative to each other at least in the first spatial direction (Z); a suspension device (13) which is designed to support the static load of the second suspension part (11); and an actuator (2) which is designed to introduce a force bidirectionally between the two suspension parts (10, 11) and thereby actively damp the relative movement between the two suspension parts (10, 11).Type: GrantFiled: February 5, 2018Date of Patent: July 5, 2022Assignee: ContiTech Vibration Control GmbHInventors: Max Werhahn, Peter Marienfeld
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Publication number: 20200031256Abstract: The invention relates to a suspension system (1), preferably a driver seat (1), comprising a first suspension part (10), preferably a frame (10) of the driver seat (1); a second suspension part (11), preferably a seat surface (11) of the driver seat (1), wherein the two suspension parts (10, 11) are movable relative to each other in at least one first spatial direction (Z), preferably in the vertical direction (Z); a kinematic system (12), preferably a scissor kinematic system (12) which is designed to connect the two suspension parts (10, 11) in a movable manner relative to each other at least in the first spatial direction (Z); a suspension device (13) which is designed to support the static load of the second suspension part (11); and an actuator (2) which is designed to introduce a force bidirectionally between the two suspension parts (10, 11) and thereby actively damp the relative movement between the two suspension parts (10, 11).Type: ApplicationFiled: February 5, 2018Publication date: January 30, 2020Applicant: ContiTech Vibration Control GmbHInventors: Max Werhahn, Peter Marienfeld
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Patent number: 10525813Abstract: A hydraulic bearing has a cylindrical main housing, a load-bearing spring enclosed by the main housing, a work chamber, which is at least partially enclosed by the load-bearing spring, with a work chamber volume filled with hydraulic fluid. The hydraulic bearing further includes a control diaphragm, which is configured to change the work chamber volume, and an actuator. The actuator is coupled to the control diaphragm for deflecting the same. The hydraulic bearing also includes an equalization chamber and a throttle duct hydraulically interconnecting the work chamber and the equalization chamber, and a cylindrical chamber housing is arranged with a first end face on an outer casing side section of the main housing, wherein the equalization chamber is formed by at least a part of an interior of the chamber housing.Type: GrantFiled: June 11, 2018Date of Patent: January 7, 2020Assignee: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Peter Marienfeld
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Patent number: 10215254Abstract: The invention relates to a hydraulic bearing (2) comprising a bearing spring (36), a working chamber (4) that is at least partially surrounded by the bearing spring (36) and that is filled with a hydraulic fluid, a first compensation chamber (6) and a first restrictor channel (10) for exchanging hydraulic fluid, said channel being formed between the working chamber (4) and the first compensation chamber (6). The hydraulic bearing (2) has a controllable valve (34) for shutting-off or restricting the flow of hydraulic fluid through the first restrictor channel (10). The invention also relates to a motor vehicle comprising a hydraulic bearing (2) of this type.Type: GrantFiled: April 8, 2015Date of Patent: February 26, 2019Assignee: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Bernhard Uhrmeister, Peter Marienfeld
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Publication number: 20180290532Abstract: A hydraulic bearing has a cylindrical main housing, a load-bearing spring enclosed by the main housing, a work chamber, which is at least partially enclosed by the load-bearing spring, with a work chamber volume filled with hydraulic fluid. The hydraulic bearing further includes a control diaphragm, which is configured to change the work chamber volume, and an actuator. The actuator is coupled to the control diaphragm for deflecting the same. The hydraulic bearing also includes an equalization chamber and a throttle duct hydraulically interconnecting the work chamber and the equalization chamber, and a cylindrical chamber housing is arranged with a first end face on an outer casing side section of the main housing, wherein the equalization chamber is formed by at least a part of an interior of the chamber housing.Type: ApplicationFiled: June 11, 2018Publication date: October 11, 2018Inventors: Robert Genderjahn, Peter Marienfeld
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Patent number: 9951843Abstract: The invention relates to a hydraulic bearing (2) with a support spring (36), a working chamber (4) which is at least partly surrounded by the support spring (36) and which is filled with a hydraulic fluid, a control membrane (12) which is designed to change a working chamber volume of the working chamber (4), and an electromagnetic actuator (16) for deflecting the control membrane (12), wherein the actuator (16) comprises a stator (18) and an armature (20) which can be moved in the longitudinal direction L of the stator (18); the armature (20) is mechanically connected to the control membrane (12); the stator (18) has a stator conductive element (26) made of a ferromagnetic material; the stator conductive element (26) has an upper stator collar (32) which extends in the transverse direction Q of the stator (18) and a lower stator collar (28) which extends in the transverse direction Q of the stator (18); the armature (20) has an armature conductive element (72) made of a ferromagnetic material; the armature cType: GrantFiled: April 9, 2015Date of Patent: April 24, 2018Assignee: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Max Werhahn, Peter Marienfeld
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Publication number: 20170146089Abstract: The invention relates to a hydraulic mount (2), comprising a supporting spring (36), a working chamber (4), which is at least partially surrounded by the supporting spring (36) and is filled with a hydraulic fluid, an equalization chamber (6), a hydraulic mount (8), which is arranged between the working chamber (4) and the equalization chamber (6), a throttle channel (10) for the exchange of hydraulic fluid, which throttle channel is formed between the working chamber (4) and the equalization chamber (6), a control membrane (12), which is designed to change a working chamber volume (14) of the working chamber (4), and an actuator (16) for deflecting the control membrane (12), wherein the hydraulic mount (2) has a control channel (24), which 40 leads from the working chamber (4) to the control membrane (12), and wherein a flow resistance of the control channel (24) is greater than a flow resistance of the throttle channel (10). The invention further relates to a motor vehicle having such a hydraulic mount (2).Type: ApplicationFiled: April 8, 2015Publication date: May 25, 2017Applicant: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Max Werhahn, Peter Marienfeld
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Publication number: 20170141665Abstract: The invention relates to an electromagnetic linear actuator (16) with a stator (18) and an armature (20) which can be moved relative to the stator (18). The stator (18) has at least one permanent magnet (22) and at least one coil (24), the stator (18) has a conductive element (26) made of a ferromagnetic material, the conductive element (26) extends over the at least one permanent magnet (22) and/or the at least one coil (26), and the armature (18) forms a yoke (34) made of a ferromagnetic material in the longitudinal direction L for the conductive element (26).Type: ApplicationFiled: June 15, 2015Publication date: May 18, 2017Applicant: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Max Werhahn, Peter Marienfeld
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Publication number: 20170130800Abstract: The invention relates to a hydraulic bearing (2) comprising a bearing spring (36), a working chamber (4) that is at least partially surrounded by the bearing spring (36) and that is filled with a hydraulic fluid, a first compensation chamber (6) and a first restrictor channel (10) for exchanging hydraulic fluid, said channel being formed between the working chamber (4) and the first compensation chamber (6). The hydraulic bearing (2) has a controllable valve (34) for shutting-off or restricting the flow of hydraulic fluid through the first restrictor channel (10). The invention also relates to a motor vehicle comprising a hydraulic bearing (2) of this type.Type: ApplicationFiled: April 8, 2015Publication date: May 11, 2017Applicant: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Bernhard Uhrmeister, Peter Marienfeld
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Publication number: 20170130801Abstract: The invention relates to a hydraulic bearing (2) with a support spring (36), a working chamber (4) which is at least partly surrounded by the support spring (36) and which is filled with a hydraulic fluid, a control membrane (12) which is designed to change a working chamber volume of the working chamber (4), and an electromagnetic actuator (16) for deflecting the control membrane (12), wherein the actuator (16) comprises a stator (18) and an armature (20) which can be moved in the longitudinal direction L of the stator (18); the armature (20) is mechanically connected to the control membrane (12); the stator (18) has a stator conductive element (26) made of a ferromagnetic material; the stator conductive element (26) has an upper stator collar (32) which extends in the transverse direction Q of the stator (18) and a lower stator collar (28) which extends in the transverse direction Q of the stator (18); the armature (20) has an armature conductive element (72) made of a ferromagnetic material; the armature cType: ApplicationFiled: April 9, 2015Publication date: May 11, 2017Applicant: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Max Werhahn, Peter Marienfeld
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Patent number: 9608503Abstract: An actuator has an electrically conductive coil which has a longitudinal axis and windings through which a current can flow. The coil is surrounded by a highly permeable first ferromagnetic body so that the first body has projections of highly permeable ferromagnetic material above and below the coil in the longitudinal direction. The actuator has a magnet spaced apart from the coil so that a gap forms therebetween. The magnet is surrounded by a highly permeable second ferromagnetic body so that the second body has projections of highly permeable ferromagnetic material above and below the magnet in the longitudinal direction. The magnet is statically mounted with the second body and the coil is spring mounted with the first body so that the coil and first body oscillate in the longitudinal direction when an alternating current flows through the coil. The coil is outside the magnet perpendicular to the longitudinal axis.Type: GrantFiled: October 2, 2014Date of Patent: March 28, 2017Assignee: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Bernhard Uhrmeister, Hans-Juergen Karkosch, Peter Marienfeld
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Patent number: 9366309Abstract: A switchable mount includes a partition wall which partitions a working chamber from a compensating chamber. A first diaphragm is arranged in the partition wall so as to be deflectable in the longitudinal direction of the mount. A switching actuator controls the diaphragm and, in a first state thereof, the diaphragm is fixed in a rest position and, in a second state thereof, the diaphragm is released to move in the longitudinal direction of the mount. A second diaphragm is arranged in the partition wall and is deflected in the longitudinal direction of the mount to influence the volume of the working chamber. An air chamber is arranged between the first diaphragm and the second diaphragm. In the first state of the actuator, the air chamber is closed off air-tight to the atmosphere and, in the second current-conducting state of the actuator, is connected to the atmosphere.Type: GrantFiled: May 30, 2013Date of Patent: June 14, 2016Assignee: ContiTech Vibration Control GmbHInventors: Peter Marienfeld, Meinert Holst
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Patent number: 9172277Abstract: An actuator includes an electrically conductive coil defining a longitudinal axis (L) and having a plurality of winding turns. A magnet is spaced from the winding turns in radial direction. A first conductive element has a mid region covering the coil on a side thereof facing away from the magnet. A second conductive element has a mid region covering the magnet on a side thereof facing away from the winding turns of the coil. The first conductive element projects beyond the coil in axial direction and the second conductive element projects beyond the magnet also in axial direction. The first and second conductive elements have respective collar-shaped projections whereat the first and second conductive elements project beyond the coil and the magnet, respectively. At least one of the first and second conductive elements is made of soft-magnetic powder composite material.Type: GrantFiled: April 1, 2013Date of Patent: October 27, 2015Assignee: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Peter Marienfeld, Hans-Juergen Karkosch
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Patent number: 9022368Abstract: A switchable, hydraulic damping mount includes a work chamber filled with hydraulic fluid and a compensation chamber connected to the work chamber via a channel. A partition wall mutually separates the chambers. A ferromagnetic diaphragm is arranged in the partition wall and is deflectable. An electromagnetic switching actuator has a deenergized state and an energized state and controls the diaphragm. The switching actuator applies a magnetic holding force to the diaphragm and fixes the diaphragm in a rest position when the switching actuator is in the deenergized state and reduces the magnetic holding force to such an extent that the diaphragm is enabled for movement in the longitudinal direction of the mount when the switching actuator is in the energized state.Type: GrantFiled: February 15, 2013Date of Patent: May 5, 2015Assignee: ContiTech Vibration Control GmbHInventors: Peter Marienfeld, Meinert Holst
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Publication number: 20150015091Abstract: An actuator has an electrically conductive coil which has a longitudinal axis and windings through which a current can flow. The coil is surrounded by a highly permeable first ferromagnetic body so that the first body has projections of highly permeable ferromagnetic material above and below the coil in the longitudinal direction. The actuator has a magnet spaced apart from the coil so that a gap forms therebetween. The magnet is surrounded by a highly permeable second ferromagnetic body so that the second body has projections of highly permeable ferromagnetic material above and below the magnet in the longitudinal direction. The magnet is statically mounted with the second body and the coil is spring mounted with the first body so that the coil and first body oscillate in the longitudinal direction when an alternating current flows through the coil. The coil is outside the magnet perpendicular to the longitudinal axis.Type: ApplicationFiled: October 2, 2014Publication date: January 15, 2015Inventors: Robert Genderjahn, Bernhard Uhrmeister, Hans-Juergen Karkosch, Peter Marienfeld
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Patent number: 8616537Abstract: A hydraulic mount includes a closable bypass and a decoupling membrane. When the bypass is opened, however, the main effect that can be achieved by opening the bypass, namely the decrease in the spring rate at higher frequencies, is worsened. It is thus desirable to render the decoupling membrane ineffective when the bypass is open. The aim is achieved in that the closure device of the bypass includes blocking elements for blocking the decoupling membrane in the first switching position of the closure device when the bypass is open and can be released in the second position of the closure device when the bypass is closed.Type: GrantFiled: June 21, 2012Date of Patent: December 31, 2013Assignee: ContiTech Vibration Control GmbHInventors: Peter Marienfeld, Hans-Jürgen Karkosch, Bernhard Uhrmeister
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Publication number: 20130256960Abstract: A switchable mount includes a partition wall which partitions a working chamber from a compensating chamber. A first diaphragm is arranged in the partition wall so as to be deflectable in the longitudinal direction of the mount. A switching actuator controls the diaphragm and, in a first state thereof, the diaphragm is fixed in a rest position and, in a second state thereof, the diaphragm is released to move in the longitudinal direction of the mount. A second diaphragm is arranged in the partition wall and is deflected in the longitudinal direction of the mount to influence the volume of the working chamber. An air chamber is arranged between the first diaphragm and the second diaphragm. In the first state of the actuator, the air chamber is closed off air-tight to the atmosphere and, in the second current-conducting state of the actuator, is connected to the atmosphere.Type: ApplicationFiled: May 30, 2013Publication date: October 3, 2013Inventors: Peter Marienfeld, Meinert Holst
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Publication number: 20130234539Abstract: An actuator includes an electrically conductive coil defining a longitudinal axis (L) and having a plurality of winding turns. A magnet is spaced from the winding turns in radial direction. A first conductive element has a mid region covering the coil on a side thereof facing away from the magnet. A second conductive element has a mid region covering the magnet on a side thereof facing away from the winding turns of the coil. The first conductive element projects beyond the coil in axial direction and the second conductive element projects beyond the magnet also in axial direction. The first and second conductive elements have respective collar-shaped projections whereat the first and second conductive elements project beyond the coil and the magnet, respectively. At least one of the first and second conductive elements is made of soft-magnetic powder composite material.Type: ApplicationFiled: April 1, 2013Publication date: September 12, 2013Applicant: ContiTech Vibration Control GmbHInventors: Robert Genderjahn, Peter Marienfeld, Hans-Juergen Karkosch
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Publication number: 20120274009Abstract: A hydraulic mount includes a closable bypass and a decoupling membrane. When the bypass is opened, however, the main effect that can be achieved by opening the bypass, namely the decrease in the spring rate at higher frequencies, is worsened. It is thus desirable to render the decoupling membrane ineffective when the bypass is open. The aim is achieved in that the closure device of the bypass includes blocking elements for blocking the decoupling membrane in the first switching position of the closure device when the bypass is open and can be released in the second position of the closure device when the bypass is closed.Type: ApplicationFiled: June 21, 2012Publication date: November 1, 2012Inventors: Peter Marienfeld, Hans-Jürgen Karkosch, Bernhard Uhrmeister
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Patent number: 5020914Abstract: A process for removing the screw from the screw cylinder of a screw-type injection molding machine and a screw-type injection molding machine of a corresponding configuration, having a base frame for receiving an injection unit which comprises a screw cylinder (1), a screw which is rotatable and axially displaceable in the screw cylinder and a drive device (2) for the screw, which is arranged axially behind the screw cylinder. The screw cylinder (1) is releasably connected to the drive device (2) and is pivotable, independently of the drive device (2), about a pivot axis (6) which extends vertically at a spacing in front of its rear end. The screw cylinder (1) and/or the drive device (2) are arranged to be movable separately from each other on the injection molding machine in the axial direction of the injection unit in order for the rear end of the screw to be pulled out of the drive device (2) after the connection has been released.Type: GrantFiled: June 19, 1989Date of Patent: June 4, 1991Assignee: Mannesmann AGInventors: Ernst Wurl, Alfred Hafner, Jurgen Paulsen, Peter Marienfeld, Bruno Grogor