Patents by Inventor Wolfgang Schnaars
Wolfgang Schnaars 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).
-
Patent number: 10330149Abstract: A method for producing a bearing, in particular a hydraulic axle support bearing, which comprises the following steps: preassembling an inner part in an outer part with an elastomer body which is arranged in between and is reinforced by a plastic cage which at least partially bears against an inner wall of the outer part. The plastic cage is configured to radially protrude over an upper edge and a lower edge of the out part and, at the lower edge of the outer part, to project over the latter. Simultaneously calibrating the outer part and the plastic cage by constricting the outer part and the plastic cage from a respective first diameter to a respective second diameter which is smaller than the respective first diameter. After the constriction, the plastic cage projects over the upper edge of the outer part for the form-fitting axial securing of the outer part.Type: GrantFiled: September 6, 2017Date of Patent: June 25, 2019Assignees: BOGE ELASTMETALL GMBH, AUDI AGInventors: Wolfgang Schnaars, Thomas Conrad
-
Patent number: 9903438Abstract: A hydraulically damping bush bearing has an elongated inner part, and outer bush, an elastomeric damping member disposed between the inner part and outer bush and a pair of axial chambers offset from one another in an axial direction. The axial chambers communicate with one another via at least one axial channel. The bush bearing also has a pair of radial chambers that communicate via at least one radial channel. The radial chambers are disposed between the pair of axial chambers and are offset from each other in a circumferential direction. At least fluid-free damping chamber is provided between the axial.Type: GrantFiled: July 1, 2013Date of Patent: February 27, 2018Assignees: BOGE ELASTMETALL GMBH, AUDI AGInventors: Wolfgang Schnaars, Thomas Conrad
-
Publication number: 20170363143Abstract: A method for producing a bearing, in particular a hydraulic axle support bearing, which comprises the following steps: preassembling an inner part in an outer part with an elastomer body which is arranged in between and is reinforced by a plastic cage which at least partially bears against an inner wall of the outer part. The plastic cage is configured to radially protrude over an upper edge and a lower edge of the out part and, at the lower edge of the outer part, to project over the latter. Simultaneously calibrating the outer part and the plastic cage by constricting the outer part and the plastic cage from a respective first diameter to a respective second diameter which is smaller than the respective first diameter. After the constriction, the plastic cage projects over the upper edge of the outer part for the form-fitting axial securing of the outer part.Type: ApplicationFiled: September 6, 2017Publication date: December 21, 2017Inventors: Wolfgang Schnaars, Thomas Conrad
-
Patent number: 9784310Abstract: A method for producing a bearing, in particular a hydraulic axle support bearing, which comprises the following steps: preassembling an inner part in an outer part with an elastomer body which is arranged in between and is reinforced by a plastic cage which at least partially bears against an inner wall of the outer part. The plastic cage is configured to radially protrude over an upper edge and a lower edge of the out part and, at the lower edge of the outer part, to project over the latter. Simultaneously calibrating the outer part and the plastic cage by constricting the outer part and the plastic cage from a respective first diameter to a respective second diameter which is smaller than the respective first diameter. After the constriction, the plastic cage projects over the upper edge of the outer part for the form-fitting axial securing of the outer part.Type: GrantFiled: February 19, 2014Date of Patent: October 10, 2017Assignees: BOGE ELASTMETALL GMBH, AUDI AGInventors: Wolfgang Schnaars, Thomas Conrad
-
Patent number: 9528566Abstract: A hydraulically damping bush bearing has an elongated inner part, and outer bush, an elastomeric damping member disposed between the inner part and outer bush and a pair of axial chambers offset from one another in an axial direction. The axial chambers communicate with one another via at least one axial channel. The bush bearing also has a pair of radial chambers that communicate via at least one radial channel. The radial chambers are disposed between the pair of axial chambers and are offset from each other in a circumferential direction. One of the pair of axial chambers has at least two separated first axial chambers spaced at a distance from one another in the circumferential direction.Type: GrantFiled: July 1, 2013Date of Patent: December 27, 2016Assignees: AUDI AG, BOGE ELASTMETALL GMBHInventors: Wolfgang Schnaars, Thomas Conrad
-
Publication number: 20160047414Abstract: A method for producing a bearing, in particular a hydraulic axle support bearing, which comprises the following steps: preassembling an inner part in an outer part with an elastomer body which is arranged in between and is reinforced by a plastic cage which at least partially bears against an inner wall of the outer part. The plastic cage is configured to radially protrude over an upper edge and a lower edge of the out part and, at the lower edge of the outer part, to project over the latter. Simultaneously calibrating the outer part and the plastic cage by constricting the outer part and the plastic cage from a respective first diameter to a respective second diameter which is smaller than the respective first diameter. After the constriction, the plastic cage projects over the upper edge of the outer part for the form-fitting axial securing of the outer part.Type: ApplicationFiled: February 19, 2014Publication date: February 18, 2016Inventors: Wolfgang Schnaars, Thomas Conrad
-
Publication number: 20150226285Abstract: A hydraulically damping bush bearing has an elongated inner part, and outer bush, an elastomeric damping member disposed between the inner part and outer bush and a pair of axial chambers offset from one another in an axial direction. The axial chambers communicate with one another via at least one axial channel. The bush bearing also has a pair of radial chambers that communicate via at least one radial channel. The radial chambers are disposed between the pair of axial chambers and are offset from each other in a circumferential direction. At least fluid-free damping chamber is provided between the axial.Type: ApplicationFiled: July 1, 2013Publication date: August 13, 2015Inventors: Wolfgang Schnaars, Thomas Conrad
-
Publication number: 20150211598Abstract: A hydraulically damping bush bearing has an elongated inner part, and outer bush, an elastomeric damping member disposed between the inner part and outer bush and a pair of axial chambers offset from one another in an axial direction. The axial chambers communicate with one another via at least one axial channel. The bush bearing also has a pair of radial chambers that communicate via at least one radial channel. The radial chambers are disposed between the pair of axial chambers and are offset from each other in a circumferential direction. One of the pair of axial chambers has at least two separated first axial chambers spaced at a distance from one another in the circumferential direction.Type: ApplicationFiled: July 1, 2013Publication date: July 30, 2015Inventors: Wolfgang Schnaars, Thomas Conrad
-
Patent number: 8534647Abstract: An elastomeric bush bearing, with hydraulic damping, comprises a metallic inner part (1), an elastomeric bearing element (2) encompassing the inner part (1) with a cage (3) for reinforcing the bearing element (2) vulcanized thereto. At least two chambers (5), for accommodating a fluid damping medium, are separated from one another by partitions (8), constructed between the bearing element (2), adhesively bonded to the inner part (1) by the vulcanization, but are mutually connected by a damping medium channel (7). A prestressing is applied to the elastomer of the bearing element (2). However, the prestressing is not applied over the bearing shell (4), but instead over the cage (3). Calibration takes places thus by a pressure force exerted on the cage, before assembly of the bearing element (2) in the outer shell (4), which is a deviation from the state of the art.Type: GrantFiled: May 6, 2008Date of Patent: September 17, 2013Assignee: Audi AGInventors: Wolfgang Schnaars, Thomas Conrad
-
Publication number: 20100109213Abstract: An elastomeric bush bearing, with hydraulic damping, comprises a metallic inner part (1), an elastomeric bearing element (2) encompassing the inner part (1) with a cage (3) for reinforcing the bearing element (2) vulcanized thereto. At least two chambers (5), for accommodating a fluid damping medium, are separated from one another by partitions (8), constructed between the bearing element (2), adhesively bonded to the inner part (1) by the vulcanization, but are mutually connected by a damping medium channel (7). A prestressing is applied to the elastomer of the bearing element (2). However, the prestressing is not applied over the bearing shell (4), but instead over the cage (3). Calibration takes places thus by a pressure force exerted on the cage, before assembly of the bearing element (2) in the outer shell (4), which is a deviation from the state of the art.Type: ApplicationFiled: May 6, 2008Publication date: May 6, 2010Applicant: ZF FRIEDRICHSHAFEN AGInventors: Wolfgang Schnaars, Thomas Conrad
-
Patent number: 7635117Abstract: A bush bearing with a radial stiffness that changes in the circumferential direction. The bearing has at least one radial web with a high radial stiffness in a first radial major load-bearing direction, and at least one pocket with a significantly smaller radial stiffness than in the region of the radial web in a second radial direction which is preferably perpendicular to the first radial direction. To achieve a large force-displacement ratio and simultaneously a soft torsion characteristic, the inner element of the bearing of the invention is formed in two parts. It consists of a metal inner sleeve and a preferably also metal bearing core received in the inner sleeve. An elastomer or a rubber contour is vulcanized on the inner surface of the inner sleeve or the outer surface of the bearing core. The inner core is oversized with respect to the inner diameter of the elastomer contour. The bearing core is pressed into the inner sleeve, but does not adhere to it.Type: GrantFiled: January 24, 2006Date of Patent: December 22, 2009Assignee: ZF Friedrichshafen AGInventors: Karl Heuer, Karl-Walter Palluck, Wolfgang Schnaars, Andreas Vossel
-
Publication number: 20090243173Abstract: The invention concerns a combination bearing, consisting of a bearing carrier (2) having an eye-shaped recess (3) and a bush bearing (1) designed for press-fit insertion into the eye-shaped recess (3). According to a preferred embodiment, the bush bearing (1) is configured without outer reinforcement for direct installation in the eye-shaped recess (3). In order to avoid a slipping of the bush bearing (1) that is press-fitted into the eye-shaped recess (3) and the noises connected therewith, it is proposed to provide the inner surface of the eye-shaped recess (3) in one or several of the areas adjacent to the outer contour (6) of the bush bearing (1) formed by the elastomeric bearing body (5) or an outer sleeve that may be present, if applicable, with a profiling (7) running in peripheral direction (u), so that the eye-shaped recess (3) within each area provided with a profiling (7) has an inner diameter (di, di?) that alternatively increases or decreases multiple times.Type: ApplicationFiled: March 23, 2009Publication date: October 1, 2009Applicant: ZF Friedrichshafen AGInventors: Wolfgang SCHNAARS, Ansgar SCHICK
-
Patent number: 7234693Abstract: Bearing for a motor vehicle, with an inner part 1 with an outer surface 7 having a first undulated contour 10 extending in a longitudinal direction L, an outer sleeve 2 surrounding the inner part 1 and having an inner surface 11 with a second undulated contour 14 extending in the longitudinal direction L, an undulated elastomer body 6 disposed between the two corrugated contours 10, 14 and extending in the longitudinal direction L. The elastomer body 6 connects the inner part 1 with the outer sleeve 2. The two undulated contours 10, 14 do not run equidistant relative to each other.Type: GrantFiled: April 12, 2005Date of Patent: June 26, 2007Assignee: ZF Friedrichshafen AGInventors: Wolfgang Schnaars, Karl Heuer
-
Publication number: 20070080031Abstract: A bush bearing with a radial stiffness that changes in the circumferential direction. The bearing has at least one radial web with a high radial stiffness in a first radial major load-bearing direction, and at least one pocket with a significantly smaller radial stiffness than in the region of the radial web in a second radial direction which is preferably perpendicular to the first radial direction. To achieve a large force-displacement ratio and simultaneously a soft torsion characteristic, the inner element of the bearing of the invention is formed in two parts. It consists of a metal inner sleeve and a preferably also metal bearing core received in the inner sleeve. An elastomer or a rubber contour is vulcanized on the inner surface of the inner sleeve or the outer surface of the bearing core. The inner core is oversized with respect to the inner diameter of the elastomer contour. The bearing core is pressed into the inner sleeve, but does not adhere to it.Type: ApplicationFiled: January 24, 2006Publication date: April 12, 2007Applicant: ZF Friedrichshafen AGInventors: Karl Heuer, Karl-Walter Palluck, Wolfgang Schnaars, Andreas Vossel
-
Publication number: 20050258583Abstract: Bearing for a motor vehicle, with an inner part 1 with an outer surface 7 having a first undulated contour 10 extending in a longitudinal direction L, an outer sleeve 2 surrounding the inner part 1 and having an inner surface 11 with a second undulated contour 14 extending in the longitudinal direction L, an undulated elastomer body 6 disposed between the two corrugated contours 10, 14 and extending in the longitudinal direction L. The elastomer body 6 connects the inner part 1 with the outer sleeve 2. The two undulated contours 10, 14 do not run equidistant relative to each other.Type: ApplicationFiled: April 12, 2005Publication date: November 24, 2005Applicant: ZF Friedrichshafen AGInventors: Wolfgang Schnaars, Karl Heuer
-
Patent number: 6394436Abstract: A McPherson strut bearing for the upper connection of a McPherson strut in a motor vehicle has an inner part (1) with a central through hole (2) for accommodating the upper end of the McPherson strut. An elastomer body (3) is arranged circularly on the outer circumference of the inner part (1). A cage (4) accommodates the inner part (1) with the elastomer body. An elastic bearing body (5) completely accommodates the cage (4) up to a bilateral opening cross section (6, 7), where at least the cage (4), the bearing body (5) and a circlip (9) surrounding the bearing body are divided in a plane passing through the central longitudinal axis (10) of the McPherson strut bearing.Type: GrantFiled: February 15, 2001Date of Patent: May 28, 2002Assignee: ZF Lemförder Metallwaren AGInventors: Wolfgang Schnaars, Ulrich Lux, Peter Kainz, Michael Sand