Patents by Inventor J. Bradley Lukac
J. Bradley Lukac 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: 8562059Abstract: An improved mechanism for a movable seat for use on a bi-directional work vehicle that laterally shifts the lower seating surface as it is pivoted between raised and lowered positions to increase clearance adjacent to the seat to improve operator ingress and egress to the vehicle operator platform. The incorporation of a biasing mechanism enables the seat mechanism to automatically reposition the seat for maximum ingress/egress clearance when the vehicle operator rises from the seat.Type: GrantFiled: August 9, 2011Date of Patent: October 22, 2013Assignee: CNH America LLCInventors: J. Bradley Lukac, John C. Campbell, Kyle J. Brenner, Matthew A. McCullough
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Publication number: 20130038106Abstract: An improved mechanism for a movable seat for use on a bi-directional work vehicle that laterally shifts the lower seating surface as it is pivoted between raised and lowered positions to increase clearance adjacent to the seat to improve operator ingress and egress to the vehicle operator platform. The incorporation of a biasing mechanism enables the seat mechanism to automatically reposition the seat for maximum ingress/egress clearance when the vehicle operator rises from the seat.Type: ApplicationFiled: August 9, 2011Publication date: February 14, 2013Inventors: J. BRADLEY LUKAC, John C. Campbell, Kyle J. Brenner, Matthew A. McCullough
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Patent number: 7645190Abstract: A method and a system for varying the rotational fan speed of a combine cleaning system in response to the amount of crop entering the combine cleaning system. Increases and decreases in crop material entering the cleaning system are sensed prior to their arrival at the cleaning system, and cleaning fan speed is adjusted appropriately and contemporaneously with the crop material's presence in the cleaning system.Type: GrantFiled: May 30, 2006Date of Patent: January 12, 2010Assignee: CNH America LLCInventors: Kevin S. Schwinn, J. Bradley Lukac
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Publication number: 20070281764Abstract: A method and a system for varying the rotational fan speed of a combine cleaning system in response to the amount of crop entering the combine cleaning system. Increases and decreases in crop material entering the cleaning system are sensed prior to their arrival at the cleaning system, and cleaning fan speed is adjusted appropriately and contemporaneously with the crop material's presence in the cleaning system.Type: ApplicationFiled: May 30, 2006Publication date: December 6, 2007Inventors: Kevin S. Schwinn, J. Bradley Lukac
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Patent number: 7238113Abstract: A tubular telescoping drive shaft for transmitting rotation from a rotating power source to an element to be rotated thereby, including at least one inner member or shaft telescopically receivable in an outer tubular shaft and including a universal joint such as a Hooke's joint having pivotal yokes connected with a cross link, all of which are at least substantially received within the outer tubular shaft in a fully retracted position and are rotatably pivotable therein for accommodating misalignment of the rotating power source and element rotated thereby.Type: GrantFiled: September 22, 2006Date of Patent: July 3, 2007Assignee: CNH America LLCInventor: J. Bradley Lukac
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Patent number: 7207890Abstract: A tubular telescoping drive shaft for transmitting rotation from a rotating power source to an element to be rotated thereby, including at least one inner member or shaft telescopically receivable in an outer tubular shaft and including a universal joint such as a Hooke's joint having pivotal yokes connected with a cross link, all of which are at least substantially received within the outer tubular shaft in a fully retracted position and are rotatably pivotable therein for accommodating misalignment of the rotating power source and element rotated thereby.Type: GrantFiled: November 3, 2004Date of Patent: April 24, 2007Assignee: CNH America LLCInventor: J. Bradley Lukac
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Patent number: 7181896Abstract: A multi-rotor blower fan assembly for a cotton picker utilizes a plurality of separate fan enclosures each containing a fan for supplying an individual air flow to a picker unit of the picker, the fans being mounted on a common shaft for rotation therewith, with a unitary removable or openable cover or hood covering access openings of the fan enclosures. One or more of the fan assemblies can be mounted on the picker, for instance, on an existing platform on the picker chassis just rearward of the operator cab, in end-to-end relation, and rotatably driven using a common drive.Type: GrantFiled: May 17, 2006Date of Patent: February 27, 2007Assignee: CNH America LLCInventors: J. Bradley Lukac, Scott W. TenBrink, Steven C. Shillington
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Patent number: 7168228Abstract: A multi-rotor blower fan assembly for a cotton picker utilizes a plurality of separate fan enclosures each containing a fan for supplying an individual air flow to a picker unit of the picker, the fans being mounted on a common shaft for rotation therewith, with a unitary removable or openable cover or hood covering access openings of the fan enclosures. One or more of the fan assemblies can be mounted on the picker, for instance, on an existing platform on the picker chassis just rearward of the operator cab, in end-to-end relation, and rotatably driven using a common drive.Type: GrantFiled: June 11, 2003Date of Patent: January 30, 2007Assignee: CNH America LLCInventors: J. Bradley Lukac, Scott W. TenBrink, Steven C. Shillington
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Publication number: 20040253916Abstract: A multi-rotor blower fan assembly for a cotton picker utilizes a plurality of separate fan enclosures each containing a fan for supplying an individual air flow to a picker unit of the picker, the fans being mounted on a common shaft for rotation therewith, with a unitary removable or openable cover or hood covering access openings of the fan enclosures. One or more of the fan assemblies can be mounted on the picker, for instance, on an existing platform on the picker chassis just rearward of the operator cab, in end-to-end relation, and rotatably driven using a common drive.Type: ApplicationFiled: June 11, 2003Publication date: December 16, 2004Inventors: J. Bradley Lukac, Scott W. TenBrink, Steven C. Shillington
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Patent number: 6514303Abstract: A rotary screen assembly rotatable about a rotational axis for filtering air entering an air inlet of a work machine, the screen assembly having an axially facing screen surface including an outer circumferential edge disposed around the rotational axis in radially spaced relation thereto, an elongate brush having bristles disposed along a longitudinal extent thereof in contact with the axially facing screen surface for brushing collected material and contaminants therefrom, the longitudinal extent or axis of the brush forming a chord of the outer circumferential edge spaced a distance from the rotational axis or being skewed relative to the rotational axis such that when the screen is rotated about the rotational axis in a predetermined direction a force is imparted to the collected material and contaminants by the bristles of the brush sufficient to move the collected material and contaminants radially outwardly past the circumferential edge.Type: GrantFiled: September 4, 2001Date of Patent: February 4, 2003Assignee: Case CorporationInventors: J. Bradley Lukac, Jesse H. Orsborn, Michael J. Horejsi, Richard J. Crabb, Derryn W. Pikesh
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Patent number: 6494471Abstract: Apparatus for sensing an angular position of a steerable wheel of a vehicle, such as a work machine or the like, about a steering axis thereof. The apparatus includes a support frame having an upper arm and a lower arm defining a space through which the steering axis passes, and a wheel hub located in the space for supporting the wheel. The steering axis extends through a predetermined bottom axial surface portion of the wheel hub, and a lower kingpin is mounted in a passage through the lower arm and supports the wheel hub in the space for rotation about the steering axis. The lower kingpin includes an axial passage therethrough extending between an upper axial opening facing the bottom axial surface portion of the wheel hub and an externally located bottom opening.Type: GrantFiled: April 26, 2001Date of Patent: December 17, 2002Assignee: New Holland North America, Inc.Inventor: J. Bradley Lukac
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Publication number: 20020088208Abstract: A rotary screen assembly rotatable about a rotational axis for filtering air entering an air inlet of a work machine, the screen assembly having an axially facing screen surface including an outer circumferential edge disposed around the rotational axis in radially spaced relation thereto, an elongate brush having bristles disposed along a longitudinal extent thereof in contact with the axially facing screen surface for brushing collected material and contaminants therefrom, the longitudinal extent or axis of the brush forming a chord of the outer circumferential edge spaced a distance from the rotational axis or being skewed relative to the rotational axis such that when the screen is rotated about the rotational axis in a predetermined direction a force is imparted to the collected material and contaminants by the bristles of the brush sufficient to move the collected material and contaminants radially outwardly past the circumferential edge.Type: ApplicationFiled: September 4, 2001Publication date: July 11, 2002Inventors: J. Bradley Lukac, Jesse H. Orsborn, Michael J. Horejsi, Richard J. Crabb, Derryn W. Pikesh
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Publication number: 20020089142Abstract: Apparatus for sensing an angular position of a steerable wheel of a vehicle, such as a work machine or the like, about a steering axis thereof. The apparatus includes a support frame having an upper arm and a lower arm defining a space through which the steering axis passes, and a wheel hub located in the space for supporting the wheel. The steering axis extends through a predetermined bottom axial surface portion of the wheel hub, and a lower kingpin is mounted in a passage through the lower arm and supports the wheel hub in the space for rotation about the steering axis. The lower kingpin includes an axial passage therethrough extending between an upper axial opening facing the bottom axial surface portion of the wheel hub and an externally located bottom opening.Type: ApplicationFiled: April 26, 2001Publication date: July 11, 2002Inventor: J. Bradley Lukac