Patents by Inventor Robert Veldman
Robert Veldman 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: 9120195Abstract: The present invention provides an apparatus and a method for manufacturing a wheel hub to reduce lateral run-out. Specifically, the present invention provides an apparatus and a method for machining the inner and outer surfaces of the wheel hub after the wheel bolts and bearing have been attached to the wheel hub. A grind wheel is used to finish an inner flange portion and outer flange portion of the wheel hub.Type: GrantFiled: February 22, 2010Date of Patent: September 1, 2015Assignee: DIVERSIFIED MACHINE, INC.Inventor: Robert Veldman
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Patent number: 8500594Abstract: A differential assembly and method of manufacturing such an assembly are provided. A method for manufacturing a differential assembly includes forming a first portion of a differential carrier; forming a second portion of the differential carrier; securing the first portion to the second portion to form the differential carrier; forming a differential housing; and securing the differential carrier to the differential housing to form a differential assembly. A sintering process may be used to form the first portion and second portion of the differential carrier, and the first and second portions may be secured together by a brazing process. The forming of the first and second portions of the differential carrier and the securing of the first and second portions to form a differential carrier may be achieved by a sinter-brazing process.Type: GrantFiled: October 17, 2008Date of Patent: August 6, 2013Assignee: Metaldyne Company LLCInventors: Michael Sefcik, Jeff Lubben, Robert Veldman
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Patent number: 8430780Abstract: A support structure for a differential assembly comprising: a support ring having a peripheral wall extending between a first face and a second face, the support ring having a non-hollow center; a bore in the peripheral wall sized and shaped to receive a pinion shaft; and an aperture in the first face, the second aperture in fluid communication with the first aperture.Type: GrantFiled: July 21, 2008Date of Patent: April 30, 2013Assignee: Metaldyne Company LLCInventors: Zhipeng Han, Greg Sabourin, Robert Veldman, William F. Cockrum, Sanjay Sarnaik
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Patent number: 8247983Abstract: The present invention provides a lamp driving circuit. When it is used to drive a number of lamps arranged in a hybrid serial-parallel configuration, the lamp driving circuit eliminates the parasitic current in series branch circuits by using an inverse transformer, which makes the current passing each of the lamps in each of the series branch circuits consistent and consequently eliminates the imbalance of each of the lamps.Type: GrantFiled: July 28, 2008Date of Patent: August 21, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Zhihua Song, Paul Robert Veldman
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Publication number: 20110234112Abstract: The present invention provides a lamp driving circuit. When it is used to drive a number of lamps arranged in a hybrid serial-parallel configuration, the lamp driving circuit eliminates the parasitic current in series branch circuits by using an inverse transformer, which makes the current passing each of the lamps in each of the series branch circuits consistent and consequently eliminates the imbalance of each of the lamps.Type: ApplicationFiled: July 28, 2008Publication date: September 29, 2011Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Zhihua Song, Paul Robert Veldman
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Publication number: 20100257737Abstract: The present invention provides an apparatus and a method for manufacturing a wheel hub to reduce lateral run-out. Specifically, the present invention provides an apparatus and a method for machining the inner and outer surfaces of the wheel hub after the wheel bolts and bearing have been attached to the wheel hub. A grind wheel is used to finish an inner flange portion and outer flange portion of the wheel hub.Type: ApplicationFiled: February 22, 2010Publication date: October 14, 2010Inventor: Robert Veldman
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Publication number: 20100236069Abstract: A knuckle hub assembly (10) and a method for manufacturing same whereby brake run out is produced includes a knuckle (12), a bearing (28) press fit into the knuckle (12), and a wheel hub (14) coupled to the bearing (28) and rotatable with respect to the knuckle (12). The wheel hub (14) has a flange surface (34) having a relief channel (60) formed therein. A plurality of wheel studs (44) are press fit into bolt opening (42) formed in the relief channel (60). This arrangement provides a flat flange surface (34) for mating with a rotor (42) to minimize brake run out. The knuckle hub assembly (10) is mounted into a floating tool for finish turning of the flange surface (34) to provide minimal run out and maximum flatness.Type: ApplicationFiled: March 29, 2010Publication date: September 23, 2010Inventors: Daniel Brinker, Robert Veldman
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Patent number: 7716833Abstract: A knuckle hub assembly (10) and a method for manufacturing same whereby brake run out is produced includes a knuckle (12), a bearing (28) press fit into the knuckle (12), and a wheel hub (14) coupled to the bearing (28) and rotateable with respect to the knuckle (12). The wheel hub (14) has a flange surface (34) having a relief channel (60) formed therein. A plurality of wheel studs (44) are press fit into bolt opening (42) formed in the relief channel (60). This arrangement provides a flat flange surface (34) for mating with a rotor (42) to minimize brake run out. The knuckle hub assembly (10) is mounted into a floating tool for finish turning of the flange surface (34) to provide minimal run out and maximum flatness.Type: GrantFiled: November 30, 2007Date of Patent: May 18, 2010Assignee: Metaldyne Chassis Products, LLCInventors: Daniel Brinker, Brian Elzerman, Ben Merrill, Robert Veldman
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Publication number: 20090105031Abstract: A differential assembly and method of manufacturing such an assembly are provided. A method for manufacturing a differential assembly includes forming a first portion of a differential carrier; forming a second portion of the differential carrier; securing the first portion to the second portion to form the differential carrier; forming a differential housing; and securing the differential carrier to the differential housing to form a differential assembly. A sintering process may be used to form the first portion and second portion of the differential carrier, and the first and second portions may be secured together by a brazing process. The forming of the first and second portions of the differential carrier and the securing of the first and second portions to form a differential carrier may be achieved by a sinter-brazing process.Type: ApplicationFiled: October 17, 2008Publication date: April 23, 2009Inventors: Michael Sefcik, Jeff Lubben, Robert Veldman
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Publication number: 20090075777Abstract: A support structure for a differential assembly comprising: a support ring having a peripheral wall extending between a first face and a second face, the support ring having a non-hollow center; a bore in the peripheral wall sized and shaped to receive a pinion shaft; and an aperture in the first face, the second aperture in fluid communication with the first aperture.Type: ApplicationFiled: July 21, 2008Publication date: March 19, 2009Inventors: Zhipeng Han, Greg Sabourin, Robert Veldman, William F. Cockrum, Sanjay Sarnaik
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Patent number: 7479086Abstract: The present invention provides a differential housing having guide slots formed therein. The guide slots permit movement of pinion shaft axially therethrough. A plurality of apertures are provided in the housing for properly positioning a pinion shaft within the housing. The apertures further provide fluid communication between the exterior and the interior of the housing to aid in adequately lubricating the components within the differential housing.Type: GrantFiled: March 22, 2007Date of Patent: January 20, 2009Assignee: Metaldyne CompanyInventors: Robert Veldman, Zhipeng Han
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Patent number: 7479087Abstract: The present invention provides a differential housing assembly having a pinion shaft positioned therein. The differential housing assembly is capable of imparting torque to at least a pair of axle shafts of, for example a vehicle. The pinion shaft has a relief portion for receiving a portion of at least one of the axle shafts. The relief portion is capable of compensating for offset between the centerline of the pinion shaft and a centerline of a vehicle. In an exemplary embodiment, the relief portion allows the axle shafts to have equal lengths.Type: GrantFiled: April 3, 2007Date of Patent: January 20, 2009Assignee: Metaldyne Company LLCInventors: Robert Veldman, Jeffrey L. Lubben
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Publication number: 20080129106Abstract: A knuckle hub assembly (10) and a method for manufacturing same whereby brake run out is produced includes a knuckle (12), a bearing (28) press fit into the knuckle (12), and a wheel hub (14) coupled to the bearing (28) and rotateable with respect to the knuckle (12). The wheel hub (14) has a flange surface (34) having a relief channel (60) formed therein. A plurality of wheel studs (44) are press fit into bolt opening (42) formed in the relief channel (60). This arrangement provides a flat flange surface (34) for mating with a rotor (42) to minimize brake run out. The knuckle hub assembly (10) is mounted into a floating tool for finish turning of the flange surface (34) to provide minimal run out and maximum flatness.Type: ApplicationFiled: November 30, 2007Publication date: June 5, 2008Inventors: Daniel Brinker, Brian Elzerman, Ben Merrill, Robert Veldman
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Patent number: 7365999Abstract: In an up-converter supplied by the mains supply and operating in the critical mode, the on-time of the switching element (2) is modulated so that it is increased in the vicinity of the zero crossings of the mains supply voltage. As a result the THD is lowered.Type: GrantFiled: May 24, 2004Date of Patent: April 29, 2008Assignee: Koninklijke Philips Electronics N.V.Inventors: Henri Arnoud Ignatius Melai, Johan Anton Hendrikx, Bernhard Christiaan Van Dijk, Paul Robert Veldman
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Patent number: 7296332Abstract: A method for forming a brake assembly for a motor vehicle includes a wheel hub, a knuckle, and a brake rotor. The wheel hub includes a neck portion and a flange portion having a flange face. The flange face has a plurality of bolt receiving holes formed therein. The wheel hub is placed in rotational communication with the knuckle. The flange face of the wheel hub has a brake rotor secured thereto. The brake rotor has an inner surface, which is subjected to final finishing in order to reduce lateral run-out of the brake rotor.Type: GrantFiled: February 20, 2004Date of Patent: November 20, 2007Inventors: Daniel Brinker, Robert Veldman
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Publication number: 20070249458Abstract: The present invention provides a differential housing assembly having a pinion shaft positioned therein. The differential housing assembly is capable of imparting torque to at least a pair of axle shafts of, for example a vehicle. The pinion shaft has a relief portion for receiving a portion of at least one of the axle shafts. The relief portion is capable of compensating for offset between the centerline of the pinion shaft and a centerline of a vehicle. In an exemplary embodiment, the relief portion allows the axle shafts to have equal lengths.Type: ApplicationFiled: April 3, 2007Publication date: October 25, 2007Inventors: Robert Veldman, Jeffrey Lubben
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Publication number: 20070225106Abstract: A pin retention and assembly system that is used with vehicles, such as, off-road vehicles is provided. The pin retention and assembly system has modular locking pins engaging a collar positionable about a bearing journal of a differential housing. Channels are formed in the bearing journal for receiving the locking pins. The channels aid in maximizing the size of the bearing journal. The locking pins engage the collar to lock the differential housing. In an embodiment, the locking pins and locking apertures in the differential housing are orientated asymmetrically causing the number of locking pins to be independent to the apertures in the side gear.Type: ApplicationFiled: March 22, 2007Publication date: September 27, 2007Inventors: Robert Veldman, Jeffrey Lubben, Zhipeng Han, Greg Sabourin
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Publication number: 20070225103Abstract: The present invention provides a differential housing having guide slots formed therein. The guide slots permit movement of pinion shaft axially therethrough. A plurality of apertures are provided in the housing for properly positioning a pinion shaft within the housing. The apertures further provide fluid communication between the exterior and the interior of the housing to aid in adequately lubricating the components within the differential housing.Type: ApplicationFiled: March 22, 2007Publication date: September 27, 2007Inventors: Robert Veldman, Zhipeng Han
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Patent number: 7259523Abstract: In a bride circuit comprising a lamp choke that might partially saturate during the ignition of the lamp, at least one of the switches is switched off when the amount of charge displaced through it in forward direction equals a predetermined value. Despite the partial paturation of the lamp choke the amplitude of the ignition voltage is thereby effectively controlled.Type: GrantFiled: January 14, 2004Date of Patent: August 21, 2007Assignee: Koninklijke Philips Electronics N.V.Inventors: Paul Robert Veldman, Bernhard Christiaan Van Dijk, Jianjun Yu
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Patent number: RE42914Abstract: A knuckle hub assembly (10) and a method for manufacturing same whereby brake run out is produced includes a knuckle (12), a bearing (28) press fit into the knuckle (12), and a wheel hub (14) coupled to the bearing (28) and rotateable with respect to the knuckle (12). The wheel hub (14) has a flange surface (34) having a relief channel (60) formed therein. A plurality of wheel studs (44) are press fit into bolt opening (42) formed in the relief channel (60). This arrangement provides a flat flange surface (34) for mating with a rotor (42) to minimize brake run out. The knuckle hub assembly (10) is mounted into a floating tool for finish turning of the flange surface (34) to provide minimal run out and maximum flatness.Type: GrantFiled: April 27, 2006Date of Patent: November 15, 2011Assignee: DMI Edon LLCInventors: Daniel Brinker, Brian Elzerman, Ben Merrill, Robert Veldman