Patents by Inventor Wilhelm Herwig
Wilhelm Herwig 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: 11378107Abstract: A piston and cylinder unit (1) of a working machine, for example a wheel loader, excavator, tipper, crane or stacker or a lifting platform serves to steer, support, extend, pivot, lift or other movements of the working machine or of a tool or a different part of the working machine. The piston and cylinder unit (1) includes a cylinder (2), a piston (7) being arranged in the cylinder (2) to be axially movable and a piston position detection unit (28) detecting the axial position of the piston (7) in the cylinder (2) by high frequency technology. The piston position detection unit (28) includes a housing (3) and an electronic unit being arranged in the housing is arranged in a mounting bore (27) extending radially in the cylinder (2). The piston position detection unit (28) is arranged in the mounting bore (27) such that the interior (3) of the cylinder (2) is sealed from the surroundings of the piston and cylinder unit (1) by the housing (29).Type: GrantFiled: August 14, 2020Date of Patent: July 5, 2022Assignee: Precision Nanosensors, Inc.Inventors: Karl-Wilhelm Herwig, Alexander Pik
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Publication number: 20220057477Abstract: A piston and cylinder unit (1) of a working machine, for example a wheel loader, excavator, tipper, crane or stacker or a lifting platform serves to steer, support, extend, pivot, lift or other movements of the working machine or of a tool or a different part of the working machine. The piston and cylinder unit (1) includes a cylinder (2), a piston (7) being arranged in the cylinder (2) to be axially movable along a longitudinal center axis (54) and a piston position detection unit (28). The cylinder (2) includes a mounting bore (27) extending radially in the cylinder (2). The piston position detection unit (28) is arranged in the mounting bore (27) and detects the axial position of the piston (7) in the cylinder (2) by high frequency technology. The piston position detection unit (28) includes an antenna (46) for sending and receiving high frequency signals. A collimator (57) is arranged in the beam path of the antenna (26).Type: ApplicationFiled: August 13, 2021Publication date: February 24, 2022Inventors: Karl-Wilhelm Herwig, Alexander Pik, Günter Leicht
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Publication number: 20210048046Abstract: A piston and cylinder unit (1) of a working machine, for example a wheel loader, excavator, tipper, crane or stacker or a lifting platform serves to steer, support, extend, pivot, lift or other movements of the working machine or of a tool or a different part of the working machine. The piston and cylinder unit (1) includes a cylinder (2), a piston (7) being arranged in the cylinder (2) to be axially movable and a piston position detection unit (28) detecting the axial position of the piston (7) in the cylinder (2) by high frequency technology. The piston position detection unit (28) includes a housing (3) and an electronic unit being arranged in the housing is arranged in a mounting bore (27) extending radially in the cylinder (2). The piston position detection unit (28) is arranged in the mounting bore (27) such that the interior (3) of the cylinder (2) is sealed from the surroundings of the piston and cylinder unit (1) by the housing (29).Type: ApplicationFiled: August 14, 2020Publication date: February 18, 2021Inventors: Karl-Wilhelm Herwig, Alexander Pik
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Patent number: 8122812Abstract: A piston and cylinder unit (1) includes a cylinder housing (2), a piston (7), a piston rod (18) and a securing element (20). The piston (7) includes an opening (13), at least one piston seal (11) and an inner thread (15) being located in the opening (13). The piston rod (18) has an axis (9) and includes a protrusion (21), an outer thread (23) and a second thread (27). The outer thread (23) is located on the protrusion (21). The second thread (27) is located at the piston rod (18). The piston (7) and the piston rod (18) are connected by the inner thread (15) and the outer thread (23). The securing element (20) is designed and arranged to substantially extend in the direction of the axis (9). The securing element (20) includes a thread (24), the securing element (20) and the piston rod (18) being connected by the thread (24) of the securing element (20) and the second thread (27) of the piston rod (18).Type: GrantFiled: August 8, 2008Date of Patent: February 28, 2012Assignee: Pacoma GmbHInventor: Karl-Wilhelm Herwig
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Patent number: 7811429Abstract: The invention relates to a target support assembly (1) comprising a support (2), on which a target lining is arranged. In order to simplify the production of the target lining or of the target support assembly and/or the placement of the target lining on the support, the target lining is formed by a target sleeve (4) that is slid onto the support (2). At least one clamping element (5) is placed, while actively clamping, between the support (2) and the target sleeve (4).Type: GrantFiled: June 20, 2003Date of Patent: October 12, 2010Assignee: Interpane Entwicklungs - und Beratungsgesellschaft mbH & Co., KGInventors: Ralf Landgraf, Wilhelm Herwig
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Publication number: 20090038472Abstract: A piston and cylinder unit (1) includes a cylinder housing (2), a piston (7), a piston rod (18) and a securing element (20). The piston (7) includes an opening (13), at least one piston seal (11) and an inner thread (15) being located in the opening (13). The piston rod (18) has an axis (9) and includes a protrusion (21), an outer thread (23) and a second thread (27). The outer thread (23) is located on the protrusion (21). The second thread (27) is located at the piston rod (18). The piston (7) and the piston rod (18) are connected by the inner thread (15) and the outer thread (23). The securing element (20) is designed and arranged to substantially extend in the direction of the axis (9). The securing element (20) includes a thread (24), the securing element (20) and the piston rod (18) being connected by the thread (24) of the securing element (20) and the second thread (27) of the piston rod (18).Type: ApplicationFiled: August 8, 2008Publication date: February 12, 2009Applicant: Hyco Pacoma GmbHInventor: Karl-Wilhelm Herwig
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Publication number: 20050224342Abstract: The invention relates to a target support assembly (1) comprising a support (2), on which a target lining is arranged. In order to simplify the production of the target lining or of the target support assembly and/or the placement of the target lining on the support, the target lining is formed by a target sleeve (4) that is slid onto the support (2). At least one clamping element (5) is placed, while actively clamping, between the support (2) and the target sleeve (4).Type: ApplicationFiled: June 20, 2003Publication date: October 13, 2005Inventors: Ralf Landgraf, Wilhelm Herwig
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Publication number: 20050040034Abstract: The invention relates to a method for applying one or several coats to a substrate in a device comprising a PVD/CVD coating chamber. One solid matter is physically transformed at least in part into a gaseous phase and is applied to the substrate in the gaseous phase. At least one additional compound and/or one additional metal is added to the gaseous phase in liquid or gaseous form, and the at least one additional compound and/or the at least one additional metal reacts with the surface of the substrate. The invention also relates to a coating that is produced according to said method.Type: ApplicationFiled: December 4, 2002Publication date: February 24, 2005Inventors: Ralf Landgraf, Michael Schmitt, Jorg Moennekes, Karl Haeuser, Rolf Blessing, Davorin Pavic, Lothar Herlitze, Wilhelm Herwig, Reimund Boewer
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Patent number: 6837144Abstract: A piston and cylinder unit includes a housing, a piston and a piston rod. The piston rod has an outer surface being designed to be symmetrical with respect to a first axis. The piston rod includes a protrusion and an outer thread being located on the protrusion. The protrusion and the outer thread are designed to be symmetrical to a second axis. The second axis is spaced apart from the first axis to define a first eccentricity of the piston rod. The piston is located in the housing. The piston has an outer surface being designed to be symmetrical with respect to a first axis. The piston includes at least one seal, at least one guiding element, an opening and an inner thread being located in the opening. The opening and the inner thread are designed to be symmetrical to a second axis. The second axis is spaced apart from the first axis to define a second eccentricity of the piston.Type: GrantFiled: November 14, 2002Date of Patent: January 4, 2005Assignee: Hyco Pacoma GmbHInventor: Karl-Wilhelm Herwig
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Publication number: 20030094097Abstract: A piston and cylinder unit includes a housing, a piston and a piston rod. The piston rod has an outer surface being designed to be symmetrical with respect to a first axis. The piston rod includes a protrusion and an outer thread being located on the protrusion. The protrusion and the outer thread are designed to be symmetrical to a second axis. The second axis is spaced apart from the first axis to define a first eccentricity of the piston rod. The piston is located in the housing. The piston has an outer surface being designed to be symmetrical with respect to a first axis. The piston includes at least one seal, at least one guiding element, an opening and an inner thread being located in the opening. The opening and the inner thread are designed to be symmetrical to a second axis. The second axis is spaced apart from the first axis to define a second eccentricity of the piston.Type: ApplicationFiled: November 14, 2002Publication date: May 22, 2003Inventor: Karl-Wilhelm Herwig