Patents by Inventor Frank LEMKE
Frank LEMKE 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: 11932524Abstract: A base frame for a reach truck includes a wheel arm subassembly with two wheel arms each having a front end and an opposing rear end. A load wheel receiver is positioned on each rear end and a counterweight is positioned at the front end of the wheel arms and coupled to the wheel arm subassembly by a plurality of screw connections. The plurality of screw connections comprise a first portion of screw connections and a second portion of screw connections. The first portion of screw connections each extend in a first direction and the second portion of the screw connections each extend in a second direction which is different from the first direction.Type: GrantFiled: November 23, 2022Date of Patent: March 19, 2024Assignee: Jungheinrich AktiengesellschaftInventors: Frank Lemke, Boyan Belchev
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Publication number: 20230122815Abstract: A base frame for a reach truck includes a wheel arm subassembly with two wheel arms each having a front end and an opposing rear end. A load wheel receiver is positioned on each rear end and a counterweight is positioned at the front end of the wheel arms and coupled to the wheel arm subassembly by a plurality of screw connections. The plurality of screw connections comprise a first portion of screw connections and a second portion of screw connections. The first portion of screw connections each extend in a first direction and the second portion of the screw connections each extend in a second direction which is different from the first direction.Type: ApplicationFiled: November 23, 2022Publication date: April 20, 2023Applicant: Jungheinrich AktiengesellschaftInventors: Frank Lemke, Boyan Belchev
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Patent number: 11511982Abstract: A base frame for a reach truck comprises a wheel arm subassembly comprising two wheel arms each having a front end and an opposing rear end. A load wheel receiver is positioned on each rear end and a counterweight is positioned at the front end of the wheel arms and coupled to the wheel arm subassembly by a plurality of screw connections. The plurality of screw connections comprise a first portion of screw connections and a second portion of screw connections. The first portion of screw connections each extend in a first direction and the second portion of the screw connections each extend in a second direction which is different from the first direction.Type: GrantFiled: January 18, 2019Date of Patent: November 29, 2022Assignee: Jungheinrich AktiengesellschaftInventors: Frank Lemke, Boyan Belchev
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Publication number: 20220260437Abstract: In an embodiment an electric circuitry includes at least a first delay chain of a plurality of delay elements and at least a second delay chain of a plurality of delay elements being arranged on a substrate, the respective delay elements of the at least one first and second delay chains are configured to provide a propagation delay time depending on strain applied to the substrate, wherein the delay elements of the at least one first delay chain have another orientation on the substrate than the delay elements of the at least one second delay chain, and a processing circuit configured to determine a magnitude of the strain applied on the substrate based on a first signal propagation delay time of the first delay chain and a second signal propagation delay time of the second delay chain.Type: ApplicationFiled: July 20, 2020Publication date: August 18, 2022Inventors: Friedrich Bahnmüller, Oliver Hertner, Frank Lemke, Georg Jedelhauser
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Patent number: 11021352Abstract: A driver cab for an industrial truck comprises a driver canopy supported by four pillars, wherein two of the four pillars are configured as entry way pillars and two of the four pillars are configured as end wall pillars. A side wall extends between each of the entry way pillars and the end wall pillars, an end wall extends between the end wall pillars, and a boarding area extends between the entry way pillars. Each of the end wall pillars comprises a tubular profile and at least one of the entry way pillars comprises a corner profile which comprises two limbs arranged at an angle with respect to one another.Type: GrantFiled: January 24, 2019Date of Patent: June 1, 2021Assignee: Jungheinrich AktiengesellschaftInventors: Frank Lemke, Michael Niebuhr, Klaus-Peter Ribbentrop
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Publication number: 20190225469Abstract: A reach truck comprises two wheel arms each coupled to a load wheel, a thrust mast positioned between the wheel arms, a drive unit comprising a steerable drive wheel, and a counterweight comprised of cast iron and positioned in a front region of the reach truck. The counterweight comprises at least one of: (a) a step positioned on a front side of the reach truck at a mid-height of the counterweight and comprising a horizontal tread having a front edge; (b) two fastening apparatuses positioned on opposite sides of an underside of the counterweight, wherein a supporting element is fastened to each of the two fastening apparatuses; and (c) a splashguard positioned on an underside of the counterweight, wherein the splashguard surrounds the steerable drive wheel forming a ring and positioned away from a lateral edge of the counterweight.Type: ApplicationFiled: January 23, 2019Publication date: July 25, 2019Applicant: Jungheinrich AktiengesellschaftInventor: Frank Lemke
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Publication number: 20190225467Abstract: A base frame for a reach truck comprises a wheel arm subassembly comprising two wheel arms each having a front end and an opposing rear end. A load wheel receiver is positioned on each rear end and a counterweight is positioned at the front end of the wheel arms and coupled to the wheel arm subassembly by a plurality of screw connections. The plurality of screw connections comprise a first portion of screw connections and a second portion of screw connections. The first portion of screw connections each extend in a first direction and the second portion of the screw connections each extend in a second direction which is different from the first direction.Type: ApplicationFiled: January 18, 2019Publication date: July 25, 2019Applicant: Jungheinrich AktiengesellschaftInventors: Frank Lemke, Boyan Belchev
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Publication number: 20190225468Abstract: A driver cab for an industrial truck comprises a driver canopy supported by four pillars, wherein two of the four pillars are configured as entry way pillars and two of the four pillars are configured as end wall pillars. A side wall extends between each of the entry way pillars and the end wall pillars, an end wall extends between the end wall pillars, and a boarding area extends between the entry way pillars. Each of the end wall pillars comprises a tubular profile and at least one of the entry way pillars comprises a corner profile which comprises two limbs arranged at an angle with respect to one another.Type: ApplicationFiled: January 24, 2019Publication date: July 25, 2019Applicant: Jungheinrich AktiengesellschaftInventors: Frank Lemke, Michael Niebuhr, Klaus-Peter Ribbentrop
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Patent number: 9493329Abstract: The invention relates to a hydraulic apparatus comprising a hydraulic pump (30) which is connectable to a hydraulic fluid tank, an electric motor (2) as a drive means for the hydraulic pump (30), which electric motor comprises a motor shaft and a motor housing cover (4), and a control valve assembly (12) connected to the pump (30) to control at least one hydraulic consumer which is connectable to the pump (30) and is to be supplied by the pump (30) with hydraulic fluid from the hydraulic fluid tank, wherein the pump (30) is fixed on the motor housing cover (4) and the motor housing cover (4) comprises a holding adapter (10) on which the control valve assembly (12) is fixed.Type: GrantFiled: December 12, 2011Date of Patent: November 15, 2016Assignee: JUNGHEINRICH AKTIENGESELLSCHAFTInventor: Frank Lemke
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Publication number: 20120145486Abstract: The invention relates to a hydraulic apparatus comprising a hydraulic pump (30) which is connectable to a hydraulic fluid tank, an electric motor (2) as a drive means for the hydraulic pump (30), which electric motor comprises a motor shaft and a motor housing cover (4), and a control valve assembly (12) connected to the pump (30) to control at least one hydraulic consumer which is connectable to the pump (30) and is to be supplied by the pump (30) with hydraulic fluid from the hydraulic fluid tank, wherein the pump (30) is fixed on the motor housing cover (4) and the motor housing cover (4) comprises a holding adapter (10) on which the control valve assembly (12) is fixed.Type: ApplicationFiled: December 12, 2011Publication date: June 14, 2012Applicant: JUNGHEINRICH AKTIENGESELLSCHAFTInventor: Frank LEMKE