Patents by Inventor Manfred Niederhufner
Manfred Niederhufner 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: 8070376Abstract: A system for connecting a shaft to a joint, and a corresponding method are provided, wherein a shaft journal embodied on the end of the shaft that is to be connected to the joint can be inserted into a recess of a joint connection. The aim of the invention is to be able to pre-assemble and axially align the shaft and the recess in a simple manner. To this end, the shaft journal and the recess are adapted to each other in such a way that the shaft journal can be displaced in the recess in an essentially weak manner in a first section T1 of the insertion path E, and a large amount of force is expended for the displacement of the shaft journal in the recess in a section T2 of the insertion path E.Type: GrantFiled: July 2, 2004Date of Patent: December 6, 2011Assignee: Shaft-Form-Engineering GmbHInventors: Claus Disser, Manfred Niederhüfner
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Patent number: 7736239Abstract: A homokinetic joint includes an inner hub and an outer hub, wherein several pathways are associated together in pairs, wherein balls which are guided in a cage are received in order to transmit torque between the inner hub and the outer hub. A sealing arrangement includes a set of bellows and seals the homokinetic joint. The radially outer edge of the set of bellows is coupled to the outer hub and/or to a carrier housing engaging therewith. The radially inner edge is secured in a stationary manner on the inner hub.Type: GrantFiled: August 31, 2004Date of Patent: June 15, 2010Assignee: Shaft-From-Engineering GmbHInventors: Manfred Niederhüfner, Claus Disser
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Publication number: 20080194344Abstract: The invention relates to a homocinetic joint (1, 1?) comprising an inner hub (2, 2?) and an outer hub (3), wherein several pathways (4, 5) are associated together in pairs, wherein balls (6) which are guided in a cage (7) are received in order to transmit torque between the inner hub and the outer hub. A sealing arrangement (10, 11, 16) comprising a set of bellows (11, 16) is provided in order to seal the homocinetic joint. The radially outer edge (11b 16b) of the set of bellows is coupled to the outer hub (3) and/or to a carrier housing (9, 9?) engaging therewith. The radially inner edge (11a, 16a) is secured in a stationary manner on the inner hub (2, 2?).Type: ApplicationFiled: August 31, 2004Publication date: August 14, 2008Inventors: Manfred Niederhufner, Claus Disser
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Publication number: 20070032303Abstract: The invention relates to a system for connecting a shaft to a joint, and to a corresponding method, wherein a shaft journal embodied on the end of the shaft that is to be connected to the joint can be inserted into a recess of a joint connection. The aim of the invention is to be able to pre-assemble an d axially align the shaft and the recess in a simple manner. To this end, the shaft journal and the recess are adapted to each other in such a way that the shaft journal can be displaced in the recess in an essentially weak manner in a first section T1 of the insertion path E, and a large amount of force is expended for the displacement of the shaft journal in the recess in a section T2 of the insertion path E.Type: ApplicationFiled: July 2, 2004Publication date: February 8, 2007Inventors: Claus Disser, Manfred Niederhufner
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Patent number: 5762559Abstract: A wheel bearing unit (9) rotatably supports a drivable wheel on a wheel carrier (10) around a rotational axis (15) and has a double-row tapered seat ball bearing with an outer bearing ring (20) attached to the wheel carrier (10) and a central bearing plane (24). The inner tracks (16, 17) are worked into the outer face (19) of an outer joint member (11) which carries a flange (12). The outer ball running grooves (30), formed into the outer joint member (11), are arranged opposite inner running grooves (35) of an inner joint member (34). The grooves, together with a cage (36) and guide balls (37), transmit torque. The inner joint member (34) is pivotable around the joint center (42) relative to the outer joint member (11). The central bearing plane (24) is offset from the joint center (42) by a distance sufficient to achieve the smallest possible rolling circle diameter.Type: GrantFiled: November 13, 1995Date of Patent: June 9, 1998Assignee: Lohr & Bromlamp GmbHInventors: Werner Jacob, Manfred Niederhufner
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Patent number: 5665001Abstract: A coupling (14) axially and non-rotatingly connects two shafts (8, 12). Both shafts, at their ends facing one another, includes shoulders (18, 19) provided with teeth (24). A first tensioning sleeve (29) which, in its bore (28), has a set of teeth (26) matching the teeth (24), is slid onto the two sets of teeth (24) of the shoulders (18, 19), to achieve a non-rotating connection between the two shafts (8, 12). A second tensioning sleeve (30) is threaded onto the outer thread (29) of the first tensioning sleeve (25). The two tensioning sleeves (25, 30) have radially inwardly directed collars (27, 31), which axially contact a contact face (22, 23) of the two shoulders (18, 19). When threaded together, the sleeves cause the two shafts (8, 12) to be axially tensioned so that their end faces (20, 21) are axially tensioned relative to one another.Type: GrantFiled: May 31, 1995Date of Patent: September 9, 1997Assignee: Lohr & Bromkamp GmbHInventors: Werner Jacob, Manfred Niederhufner, Olaf Orlamunder
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Patent number: 5651738Abstract: A clamping mechanism (12) connects a tubular shaft (4) to a journal (11). In its bore, the tubular shaft (4) has a profile which is engaged by the journal (11) by a corresponding counter-profile on its outer face along a length of overlap. The profile and counter-profile are tensioned relative to one another by the clamping mechanism (12). The clamping effect is achieved by taking advantage of the possibility of deforming the cross-section of the tube.Type: GrantFiled: May 31, 1995Date of Patent: July 29, 1997Assignee: Lohr & Bromkamp GmbHInventors: Werner Jacob, Manfred Niederhufner, Matthias Wiemer
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Patent number: 5624318Abstract: A constant velocity joint (2) with a connecting shaft (4). The inner part (12) of the constant velocity joint (2) includes a through-bore (28) with a first portion in the form of inner teeth (29) and a second bore portion in the form of a circular-cylindrical bore portion (32). A coupling sleeve is inserted into the inner part (12). The coupling sleeve (33) includes outer teeth (34) which engage the inner teeth (29). These are followed by a circular-cylindrical portion (35) centered in the bore portion (32). The coupling sleeve (33), on its inner face, has first longitudinal grooves (37) arranged opposite second longitudinal grooves (39) of the connecting shaft (4). Rolling-contact members (40) are received between the first and second longitudinal grooves and are held so as to be guided in a cage. Members (40) serve to transmit torque between the coupling sleeve (33) and the connecting shaft (4) and enable a linear adjustment between the coupling sleeve (33) and the connecting shaft (4).Type: GrantFiled: May 24, 1995Date of Patent: April 29, 1997Assignee: Lohr & Broomkamp GmbHInventors: Werner Jacob, Manfred Niederhufner, Jurgen E. Heyne
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Patent number: 5611733Abstract: A driveshaft (1) for driving the wheels of a motor vehicle has two constant velocity joints (2, 3) and a connecting shaft (4). The two constant velocity joints (2, 3) are provided in the form of constant velocity fixed joints. The plunging assembly required to change the longitudinal distance (L) includes a plunging journal (21), formed onto the second joint part (20) of the second constant velocity joint (3), and a plunging portion (26) of the connecting shaft (4). The shaft (4) surrounds the plunging journal (21) and is provided in the form of a tubular shaft. The cross-section of the plunging portion (26) has the shape of a corrugated shaft. Each outer corrugation peak, in the bore of the plunging portion (26), includes a second running groove (29) positioned opposite a running groove (22) in the plunging journal (21). Balls (23) are rollingly arranged between the two running grooves (29, 22) and held by a cage (24).Type: GrantFiled: May 31, 1995Date of Patent: March 18, 1997Assignee: Lohr & Bromkamp GmbHInventors: Werner Jacob, Manfred Niederhufner, Jurgen E. Heyne