Patents by Inventor Engelbert Zwingler
Engelbert Zwingler 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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Publication number: 20230144642Abstract: A housing unit for a hydraulic valve with an actuating device includes a first housing part with an internal thread and a second housing part with an external thread. A valve piston is disposed in the first housing part and an actuating element of the actuating device is disposed in the second housing part. The actuating element is operatively connected to the valve piston in the axial direction. The second housing part is only partially screwed into the first housing part in the assembled state of the housing unit. The housing unit further includes a securing device, which prevents a relative movement between the internal thread and the external thread in the assembled state of the housing unit in such a way that an operating point of the actuating device is set.Type: ApplicationFiled: November 7, 2022Publication date: May 11, 2023Applicant: Hawe Hydraulik SEInventors: Engelbert Zwingler, Thomas Ott
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Patent number: 10302205Abstract: The present disclosure relates to a hydraulic component with a valve unit for a hydraulic system, and a hydraulic system having such a hydraulic component. The valve unit of the hydraulic component has a valve block and a valve piston. The valve piston is moveably along a first bore supported in the valve block. Further, the valve unit is admittable with pressurized hydraulic fluid and is configured such that the valve piston can be moved between a closed position and an open position. The hydraulic component according to the disclosure is particularly characterized in that the first bore is configured as a through-hole through the entire valve block and the hydraulic component has a collecting unit. The collecting unit at least partially surrounds the two end openings of the first bore and is configured collect and drain hydraulic fluid leaking out of the two end openings of the bore.Type: GrantFiled: October 19, 2017Date of Patent: May 28, 2019Assignee: HAWE HYDRAULIK SEInventors: Alexander Haehl, Johannes Glaser, Alexander Haas, Engelbert Zwingler
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Publication number: 20190011053Abstract: The present disclosure relates to a hydraulic component with a valve unit for a hydraulic system, and a hydraulic system having such a hydraulic component. The valve unit of the hydraulic component has a valve block and a valve piston. The valve piston is moveably along a first bore supported in the valve block. Further, the valve unit is admittable with pressurized hydraulic fluid and is configured such that the valve piston can be moved between a closed position and an open position. The hydraulic component according to the disclosure is particularly characterized in that the first bore is configured as a through-hole through the entire valve block and the hydraulic component has a collecting unit. The collecting unit at least partially surrounds the two end openings of the first bore and is configured collect and drain hydraulic fluid leaking out of the two end openings of the bore.Type: ApplicationFiled: October 19, 2017Publication date: January 10, 2019Applicant: HAWE HYDRAULIK SEInventors: Alexander HAEHL, Johannes GLASER, Alexander HAAS, Engelbert ZWINGLER
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Patent number: 9541101Abstract: In a hydraulic drive of a tool, a piston is adapted to be acted upon by a pump via a pressure limiting seat valve and a parallel switching seat valve of a valve arrangement. A restriction is provided in a pressure line upstream of the pressure limiting seat valve which is connected to a tank on the flow-off side. A drain line leads from a working chamber of the piston via the switching seat valve to the tank. A closing side is adapted to be acted upon by pressure and an opening side is adapted to be acted upon by a force generated when the pressure limiting seat valve responds. The pump is adapted to be switched off when the maximum operating pressure has been reached, so that the piston will execute a return stroke. A pressure-increasing restriction is provided on the flow-off side of the pressure limiting seat valve.Type: GrantFiled: August 7, 2014Date of Patent: January 10, 2017Assignee: HAWE HYDRAULIK SEInventors: Georg Aneder, Engelbert Zwingler
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Patent number: 9360028Abstract: A hydraulic control, for example of a hydraulically operable working tool, includes a hydroconsumer that can be acted upon against a permanent force via a pressure source, and a switching valve with working power/pressure control function reacting against a spring force depending on a pressure and/or through flow volume. The switching valve connects the hydroconsumer with a tank for a return stroke of the hydroconsumer when the pressure source is switched off. The hydroconsumer can be hydraulically stopped with the return stroke via the pressure source by a pressure pulse and/or through flow volume pulse. In a hydraulically operable working tool, the hydroconsumer can be hydraulically stopped in the return stroke even before a predetermined end position is reached by switching on the pressure source.Type: GrantFiled: March 18, 2013Date of Patent: June 7, 2016Assignee: HAWE HYDRAULIK SEInventors: Engelbert Zwingler, Georg Aneder
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Publication number: 20150040555Abstract: In a hydraulic drive of a tool, a piston is adapted to be acted upon by a pump via a pressure limiting seat valve and a parallel switching seat valve of a valve arrangement. A restriction is provided in a pressure line upstream of the pressure limiting seat valve which is connected to a tank on the flow-off side. A drain line leads from a working chamber of the piston via the switching seat valve to the tank. A closing side is adapted to be acted upon by pressure and an opening side is adapted to be acted upon by a force generated when the pressure limiting seat valve responds. The pump is adapted to be switched off when the maximum operating pressure has been reached, so that the piston will execute a return stroke. A pressure-increasing restriction is provided on the flow-off side of the pressure limiting seat valve.Type: ApplicationFiled: August 7, 2014Publication date: February 12, 2015Inventors: Georg ANEDER, Engelbert ZWINGLER
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Publication number: 20140083085Abstract: A hydraulic control, for example of a hydraulically operable working tool, includes a hydroconsumer that can be acted upon against a permanent force via a pressure source, and a switching valve with working power/pressure control function reacting against a spring force depending on a pressure and/or through flow volume. The switching valve connects the hydroconsumer with a tank for a return stroke of the hydroconsumer when the pressure source is switched off. The hydroconsumer can be hydraulically stopped with the return stroke via the pressure source by a pressure pulse and/or through flow volume pulse. In a hydraulically operable working tool, the hydroconsumer can be hydraulically stopped in the return stroke even before a predetermined end position is reached by switching on the pressure source.Type: ApplicationFiled: March 18, 2013Publication date: March 27, 2014Applicant: HAWE HYDRAULIK SEInventors: Engelbert Zwingler, Georg Aneder
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Patent number: 8444113Abstract: In a screw-in multi-way seat valve V comprising a screw-in housing 1, in which at least one sleeve 21 is positioned axially which sleeve 21 forms a valve seat 20, and a valve member 15 provided inside and having a seat surface 31 with a larger outer diameter than the inner diameter of the valve seat 20, the sleeve 21 is axially positioned in the screw-in housing 1 by a threaded connection 23 and at the same time is sealed by a press fit zone 24, the press fit zone 24 forming an anti-rotation protection for the threaded connection 23.Type: GrantFiled: June 18, 2010Date of Patent: May 21, 2013Assignee: HAWE Hydraulik SEInventors: Georg Neumair, Bernd Faber, Engelbert Zwingler
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Publication number: 20110001071Abstract: In a screw-in multi-way seat valve V comprising a screw-in housing 1, in which at least one sleeve 21 is positioned axially which sleeve 21 forms a valve seat 20, and a valve member 15 provided inside and having a seat surface 31 with a larger outer diameter than the inner diameter of the valve seat 20, the sleeve 21 is axially positioned in the screw-in housing 1 by a threaded connection 23 and at the same time is sealed by a press fit zone 24, the press fit zone 24 forming an anti-rotation protection for the threaded connection 23.Type: ApplicationFiled: June 18, 2010Publication date: January 6, 2011Applicant: HAWE HYDRAULIK SEInventors: Georg Neumair, Bernd Faber, Engelbert Zwingler
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Patent number: 7219697Abstract: In a twin-solenoid valve D comprising two valve members V which are located side by side and are actuated in closing direction by a common solenoid M via a T-shaped force transmitting member, a stem 4 of which is guided in a slide guidance 3, a radial safety clearance X is provided between the slide guidance 3 and the stem 4, and a tilt joint K is formed between the stem 4 and an armature B or a movably guided armature ram 2 of the solenoid M.Type: GrantFiled: February 10, 2005Date of Patent: May 22, 2007Assignee: Hawe Hydraulik GmbH & Co. KGInventors: Georg Neumair, Engelbert Zwingler
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Publication number: 20050178453Abstract: In a twin-solenoid valve D comprising two valve members V which are located side by side and are actuated in closing direction by a common solenoid M via a T-shaped force transmitting member, a stem 4 of which is guided in a slide guidance 3, a radial safety clearance X is provided between the slide guidance 3 and the stem 4, and a tilt joint K is formed between the stem 4 and an armature B or a movably guided armature ram 2 of the solenoid M.Type: ApplicationFiled: February 10, 2005Publication date: August 18, 2005Inventors: Georg Neumair, Engelbert Zwingler