Patents by Inventor Helmut Lux
Helmut Lux 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: 9216517Abstract: A handheld work apparatus has a drive motor (8) that is held in a motor housing (2). At least one handle (4) is provided, with a vibration gap (12) being formed between the handle (4) and the motor housing (2). The vibration gap (12) permits a relative movement between handle (4) and motor housing (2). The handle (4) is connected to the motor housing (2) via at least one anti-vibration device (13, 14, 15, 16, 31, 49, 50, 63) that bridges the vibration gap (12). The anti-vibration device (15, 16, 31, 49, 50, 63) has a longitudinal center axis (23, 24). The anti-vibration device (15, 16, 31, 49, 50, 63) bridges the vibration gap (12) via at least one tension element. The anti-vibration device (15, 16, 31, 49, 50, 63) also has a spring (17, 32, 33, 51, 55, 72, 73) arranged functionally in series with the tension element.Type: GrantFiled: December 21, 2011Date of Patent: December 22, 2015Assignee: Andreas Stihl AG & Co. KGInventors: Jan Kurzenberger, Johannes Menzel, Helmut Lux
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Patent number: 8225514Abstract: A manually guided implement, such as a power saw, a cut-off machine, or the like, having a drive motor for driving a tool of the implement. The drive motor has a drive shaft that is rotatably driven about an axis of rotation. The implement has a handle on which is disposed at least one control handle for the drive motor. Formed between the handle and the drive motor is a vibration space that is spanned by at least one anti-vibration element, at least one of which includes a coil spring, the longitudinal axis of which is disposed approximately perpendicular to a longitudinal plane of the implement. The vibration space is spanned by at least one connecting element, the longitudinal axis of which is inclined relative to a transverse plane of the implement that is disposed perpendicular to the longitudinal plane.Type: GrantFiled: May 5, 2008Date of Patent: July 24, 2012Assignee: Andreas Stihl AG & Co., KGInventors: Andreas Guip, Johannes Menzel, Helmut Lux, Günter Wolf
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Publication number: 20120160532Abstract: A handheld work apparatus has a drive motor (8) that is held in a motor housing (2). At least one handle (4) is provided, with a vibration gap (12) being formed between the handle (4) and the motor housing (2). The vibration gap (12) permits a relative movement between handle (4) and motor housing (2). The handle (4) is connected to the motor housing (2) via at least one anti-vibration device (13, 14, 15, 16, 31, 49, 50, 63) that bridges the vibration gap (12). The anti-vibration device (15, 16, 31, 49, 50, 63) has a longitudinal center axis (23, 24). The anti-vibration device (15, 16, 31, 49, 50, 63) bridges the vibration gap (12) via at least one tension element. The anti-vibration device (15, 16, 31, 49, 50, 63) also has a spring (17, 32, 33, 51, 55, 72, 73) arranged functionally in series with the tension element.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Inventors: Jan Kurzenberger, Johannes Menzel, Helmut Lux
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Publication number: 20110059139Abstract: A method for loading a molecule into a porous substrate. The molecule has the formula wherein R* is a hydrophobic species and R** is a hydrophilic species which can be Ibuprofen is mixed with mesoporous silica and allowed to contact liquid carbon dioxide for a sufficient period of time to allow the Ibuprofen to load into the pores of the mesoporous silica.Type: ApplicationFiled: September 8, 2009Publication date: March 10, 2011Inventors: Anna HILLERSTRÖM, Stefan Wolf, Horst Helmut Lux
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Publication number: 20110059226Abstract: A method for loading a molecule into a porous substrate. The molecule has the formula wherein R* is a hydrophobic species and R** is a hydrophilic species which is mixed with mesoporous substrate and allowed to contact liquid carbon dioxide for a sufficient period of time to allow the molecule to load into the pores of the mesoporous substrate.Type: ApplicationFiled: November 10, 2009Publication date: March 10, 2011Inventors: Anna HILLERSTRÖM, Stefan WOLF, Horst Helmut LUX
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Publication number: 20080276469Abstract: A manually guided implement, such as a power saw, a cut-off machine, or the like, having a drive motor for driving a tool of the implement. The drive motor has a drive shaft that is rotatably driven about an axis of rotation. The implement has a handle on which is disposed at least one control handle for the drive motor. Formed between the handle and the drive motor is a vibration space that is spanned by at least one anti-vibration element, at least one of which includes a coil spring, the longitudinal axis of which is disposed approximately perpendicular to a longitudinal plane of the implement. The vibration space is spanned by at least one connecting element, the longitudinal axis of which is inclined relative to a transverse plane of the implement that is disposed perpendicular to the longitudinal plane.Type: ApplicationFiled: May 5, 2008Publication date: November 13, 2008Inventors: Andreas Guip, Johannes Menzel, Helmut Lux, Gunter Wolf
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Patent number: 7270320Abstract: An antivibration element (1) is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring (2) and at least one guide. An end section (7, 8) of the coil spring (2) is fixed to the guide. In order to provide a progressive characteristic line of the coil spring (2) in a simple way, the coil spring (2) has a transition section (11, 12), which borders at the end section (7, 8) and is guided with play on the guide. When the coil spring is under load, the turns of the transition section come at least in part into contact engagement with a helically-shaped slot in the guide so that the spring stiffness of the antivibration unit increases.Type: GrantFiled: July 30, 2003Date of Patent: September 18, 2007Assignee: Andreas Stihl AG & Co. KGInventors: Johannes Menzel, Günter Wolf, Helmut Lux, Jens Kutzbach
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Patent number: 7152853Abstract: A manually operated implement such as a chain saw, a parting-off grinder or similar device has an internal combustion engine to drive a tool and a handle arrangement to operate the implement. The handle arrangement is connected to the internal combustion engine via a vibration damping system, the vibration damping system comprising at least one anti-vibration element. In order to achieve good vibration damping and sufficient operational rigidity in all operating ranges, in at least one direction of vibration in a predetermined frequency range the anti-vibration element has a first characteristic curve in a first state and a second characteristic curve in a second state and the anti-vibration element can be switched between the first state and the second state.Type: GrantFiled: June 4, 2004Date of Patent: December 26, 2006Assignee: Andreas Stihl AG & Co. KGInventors: Johannes Menzel, Helmut Lux, Marc Schmid, Günter Wolf
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Patent number: 6994068Abstract: An antivibration device is mounted between a motor unit (1) having an internal combustion engine (2) and a vibration-insulated unit (3) of a portable handheld work apparatus (4) such as a motor-driven chain saw, cutoff machine, suction/blower apparatus or the like. The antivibration device (5) includes a vibration damper (6) made of foamed elastic material (7).Type: GrantFiled: February 10, 2004Date of Patent: February 7, 2006Assignee: Andreas Stihl AG & Co, KGInventors: Johannes Menzel, Markus Keller, Helmut Lux, Christoph von Hiller, Günter Wolf, Andreas Guip
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Publication number: 20040244207Abstract: A manually operated implement such as a chain saw, a parting-off grinder or similar device has an internal combustion engine to drive a tool and a handle arrangement to operate the implementl. The handle arrangement is connected to the internal combustion engine via a vibration damping system, the vibration damping system comprising at least one anti-vibration element.Type: ApplicationFiled: June 4, 2004Publication date: December 9, 2004Applicant: Andreas Stihl AG & Co., KGInventors: Johannes Menzel, Helmut Lux, Marc Schmid, Gunter Wolf
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Patent number: 6799373Abstract: A portable work apparatus, especially a motor-driven chain saw (1), has a drive unit which is provided with a handle housing (3). The handle housing (3) includes an extension (9) which extends in the longitudinal direction of the work apparatus from a rearward handle (8) on the side facing away in the longitudinal direction from a guide bar (6) forward to the side facing toward the guide bar (6). The handle housing (3) is connected via antivibration elements to the drive unit. The work apparatus has a forward handle tube (4), which extends over the work apparatus transversely to the longitudinal direction and is attached with an end (10) to the free end of the extension (9) and with the other end (27) in the area of the rearward handle (8). At least one of the ends (10, 27) of the handle tube (4) is fixed via an antivibration element (11, 25, 26, 28, 34).Type: GrantFiled: June 6, 2002Date of Patent: October 5, 2004Assignee: Andreas Stihl AG & Co.Inventors: Johannes Menzel, Markus Keller, Helmut Lux, Jürgen Steinmaier, Ralf-Rainer Kemmler
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Patent number: 6799642Abstract: A vibration damper is disposed between two components (2, 3) of a portable handheld work apparatus (4). The vibration damper is held especially between a housing (6), which holds an internal combustion engine (5), and a handle (7) which is fixed on the housing (6) for guiding the work apparatus (4). The vibration damper includes a coil spring (9) and respective attachment elements (11, 12) at the ends (10, 13) of the coil spring. A coupling member (17) is provided to ensure that the work apparatus can be guided notwithstanding a break of a coil spring. The coupling member (17) projects through the coil spring (9) and bridges the axial distance (16) between the attachment elements (11 and 12). The coupling member (17) is connected to each attachment element (11, 12) so that it cannot separate therefrom.Type: GrantFiled: February 6, 2002Date of Patent: October 5, 2004Assignee: Andreas Stihl AG & Co.Inventors: Gunter Wolf, Phillip Neumann, Helmut Lux, Lothar Ulrich
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Publication number: 20040178551Abstract: An antivibration device is mounted between a motor unit (1) having an internal combustion engine (2) and a vibration-insulated unit (3) of a portable handheld work apparatus (4) such as a motor-driven chain saw, cutoff machine, suction/blower apparatus or the like. The antivibration device (5) includes a vibration damper (6) made of foamed elastic material (7).Type: ApplicationFiled: February 10, 2004Publication date: September 16, 2004Inventors: Johannes Menzel, Markus Keller, Helmut Lux, Christoph von Hiller, Gunter Wolf, Andreas Guip
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Publication number: 20040119216Abstract: An antivibration element (1) is especially for a portable handheld work apparatus such as a motor-driven chain saw or a brushcutter. The antivibration element includes a coil spring (2) and at least one guide. An end section (7, 8) of the coil spring (2) is fixed to the guide. In order to provide a progressive characteristic line of the coil spring (2) in a simple way, the coil spring (2) has a transition section (11, 12), which borders at the end section (7, 8) and is guided with play on the guide.Type: ApplicationFiled: July 30, 2003Publication date: June 24, 2004Inventors: Johannes Menzel, Gunter Wolf, Helmut Lux, Jens Kutzbach
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Publication number: 20030188618Abstract: A manually guided, motor-driven implement is provided that has a housing for a motor, especially an internal combustion engine, that drives a working tool of the implement. In order for a power chain saw to mount a handle on the housing of the motor in a vibration dampening manner such that due to the mounting a structurally prescribed dampening frequency range is effected, one or more hydraulic mounts are disposed between the handle and the motor of the power chain saw.Type: ApplicationFiled: March 26, 2003Publication date: October 9, 2003Applicant: Andreas Stihl AG & Co.Inventors: Johannes Menzel, Helmut Lux, Gunter Wolf, Roman Allgower, Georg Leppla, Jorg Schlossarczyk
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Publication number: 20020184987Abstract: A portable work apparatus, especially a motor-driven chain saw (1), has a drive unit which is provided with a handle housing (3). The handle housing (3) includes an extension (9) which extends in the longitudinal direction of the work apparatus from a rearward handle (8) on the side facing away in the longitudinal direction from a guide bar (6) forward to the side facing toward the guide bar (6). The handle housing (3) is connected via antivibration elements to the drive unit. The work apparatus has a forward handle tube (4), which extends over the work apparatus transversely to the longitudinal direction and is attached with an end (10) to the free end of the extension (9) and with the other end (27) in the area of the rearward handle (8). At least one of the ends (10, 27) of the handle tube (4) is fixed via an antivibration element (11, 25, 26, 28, 34).Type: ApplicationFiled: June 6, 2002Publication date: December 12, 2002Inventors: Johannes Menzel, Markus Keller, Helmut Lux, Jurgen Steinmaier, Ralf-Rainer Kemmler
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Publication number: 20020157633Abstract: An antivibration device is mounted between a motor unit (1) having an internal combustion engine (2) and a vibration-insulated unit (3) of a portable handheld work apparatus (4) such as a motor-driven chain saw, cutoff machine, suction/blower apparatus or the like. The antivibration device (5) includes a vibration damper (6) made of foamed elastic material (7).Type: ApplicationFiled: April 29, 2002Publication date: October 31, 2002Inventors: Johannes Menzel, Markus Keller, Helmut Lux, Christoph von Hiller, Gunter Wolf
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Publication number: 20020104665Abstract: A vibration damper is disposed between two components (2, 3) of a portable handheld work apparatus (4). The vibration damper is held especially between a housing (6), which holds an internal combustion engine (5), and a handle (7) which is fixed on the housing (6) for guiding the work apparatus (4). The vibration damper includes a coil spring (9) and respective attachment elements (11, 12) at the ends (10, 13) of the coil spring. A coupling member (17) is provided to ensure that the work apparatus can be guided notwithstanding a break of a coil spring. The coupling member (17) projects through the coil spring (9) and bridges the axial distance (16) between the attachment elements (11 and 12). The coupling member (17) is connected to each attachment element (11, 12) so that it cannot separate therefrom.Type: ApplicationFiled: February 6, 2002Publication date: August 8, 2002Inventors: Gunter Wolf, Philipp Neumann, Helmut Lux, Lothar Ulrich
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Patent number: 6152089Abstract: The invention relates to a portable handheld work apparatus such as a motor-driven chain saw having an internal combustion engine mounted in a housing for driving a work tool. A cooling-air blower is mounted on one side of the housing. The cooling-air blower is covered by a blower cover having air-intake openings. The blower cover has a bearing lug facing toward the cooling-air blower. A pull-rope starter for starting the engine is held on the bearing lugs and the housing of the pull-rope starter is attached to the blower cover. The pull-rope starter housing is configured as a component separate from the blower cover in order to minimize the disturbance of the cooling-air inflow by the pull-rope starter housing. This component is attached at a spacing to the air-intake openings of the blower.Type: GrantFiled: November 24, 1998Date of Patent: November 28, 2000Assignee: Andreas Stihl AG & Co.Inventors: Philipp Neumann, Bernhard Durr, Helmut Lux, Eberhard Bohnaker
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Patent number: 5231956Abstract: The invention is directed to a portable handheld work apparatus including a motor-driven chain saw, cutoff machine and the like. The work apparatus includes a housing and an internal combustion engine mounted in the housing for driving a work tool. The housing defines a space from which said engine draws combustion air and a fan wheel is disposed in the housing for generating a cooling-air flow which leaves the fan wheel in a direction tangential to the periphery of the fan wheel for cooling the engine. The housing has a U-shaped channel for conducting the cooling-air flow. The U-shaped channel is disposed so as to face toward the fan wheel with the base wall thereof being disposed at a predetermined spacing from the periphery of the fan wheel. The U-shaped channel has a pass-through formed in the base wall at a pregiven spacing downstream from the fan wheel for passing a portion of the cooling-air flow to the space as combustion air for the engine.Type: GrantFiled: February 10, 1993Date of Patent: August 3, 1993Assignee: Andreas StihlInventors: Helmut Lux, Lothar Ulrich