Patents by Inventor Benjamin T. Nelson

Benjamin T. Nelson 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: 9151377
    Abstract: An axle assembly and method for assembling such axle assembly for a vehicle are disclosed. The axle assembly may comprise meshed ring and pinion gears, a center housing portion, and left and right leg housing portions. The center housing portion may include a center housing defining a center cavity in which the bevel gear is disposed, and at least one channel having an entrance port into the center cavity. The axle assembly may include a first conduit configured to branch off of the first channel in a first direction and a second conduit configured to branch off of the first channel in a second direction. Such channels and conduits may be integral to the center housing or substantially external to the center housing.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: October 6, 2015
    Assignee: Caterpillar Inc.
    Inventors: Jason Weber, John B. Salomon, Benjamin T. Nelson, Stephen R. Dockstader
  • Patent number: 9068643
    Abstract: A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where the gears mesh to enable the churning oil to expand and flow around the gears.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: June 30, 2015
    Assignee: Caterpillar Inc.
    Inventors: Benjamin T. Nelson, Andrew J. Krajnik, John J. Krone
  • Publication number: 20150176697
    Abstract: A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where the gears mesh to enable the churning oil to expand and flow around the gears.
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Inventors: Benjamin T. Nelson, Andrew J. Krajnik, John J. Krone
  • Patent number: 8997933
    Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can comprise a plurality interconnected polygonal shapes defining a top standing surface. The platform can be a grating that has load bearing properties and that can be cast from a mold. The platform includes a perimeter wall, a surface portion, and one or more reinforcement walls. A height or thickness of the surface portion is less than a height or thickness of the perimeter wall and/or the reinforcement walls.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: April 7, 2015
    Assignee: Ardisam, Inc.
    Inventors: Michael R. Furseth, Randy L. Schamberger, Benjamin T. Nelson, Brendan Lonergan
  • Patent number: 8991555
    Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can rotate from a transport configuration to an operable configuration. The platform in the operable configuration is approximately perpendicular to the support post. The platform has a tree contact point positioned above a plane of the platform when the platform is in the horizontal position. The platform can comprise a plurality of hexagons with groups of three hexagons intersecting at a point and forming a honeycomb pattern defining a top standing surface on which a hunter can stand. The contact point is configured to create an over-center locking action. The tree stand can also include a stackable ladder coupled to the platform.
    Type: Grant
    Filed: October 4, 2011
    Date of Patent: March 31, 2015
    Assignee: Ardisam, Inc.
    Inventors: Michael R. Furseth, Randy L. Schamberger, Benjamin T. Nelson
  • Patent number: 8961348
    Abstract: A drive axle housing system may minimize churning of splash and spray oil within a drive axle housing. The drive axle housing system includes apparatus for incorporation into the axle, the apparatus including an oil churning reduction member that may be affixed to the interior walls of the axle housing. The oil churning reduction member includes interior surfaces adapted to closely align with interior moving gear components of the axle to minimize efficiency losses due to oil movement. The system may also incorporate an annular element, affixed to the axle housing and closely aligned with the backside of a ring gear component of the differential axle. The combined use of the member and the element may substantially reduce torque losses attributable to excessive churning of oil.
    Type: Grant
    Filed: June 13, 2011
    Date of Patent: February 24, 2015
    Assignee: Caterpillar Inc.
    Inventors: Jason Weber, Dale C. Messmore, John B. Salomon, Benjamin T. Nelson
  • Publication number: 20140165549
    Abstract: A hydraulic system is disclosed. The hydraulic system may have a first pump, a boom cylinder, and a first closed loop fluidly connecting the first pump to the boom cylinder. The hydraulic system may also have a second pump, a swing motor, and a second closed loop fluidly connecting the second pump to the swing motor. The hydraulic system may further have a third pump, an auxiliary actuator, and a third closed loop fluidly connecting the third pump to the auxiliary actuator. The hydraulic system may additionally have a combining valve configured to selectively connect the second closed loop to the first closed loop during a boom raising operation, and a control valve configured to selectively connect the third closed loop to the first closed loop during a boom lowering operation.
    Type: Application
    Filed: December 19, 2012
    Publication date: June 19, 2014
    Applicant: CATERPILLAR INC.
    Inventors: Magomed GABIBULAYEV, Jeffrey L. KUEHN, Michael L. KNUSSMAN, Jeremy T. PETERSON, Viral S. MEHTA, Benjamin T. NELSON
  • Publication number: 20140130634
    Abstract: A hydraulic pump housing comprises passages formed in an inner wall separating the gear cavity and the pump cavity to allow for the movement of fluid into and out of the gear cavity, thereby alleviating some of the power loss caused by churning lubricating oil. The hydraulic pump may comprise spaces integrally formed in axially opposing surfaces of the gear cavity walls adjacent the area where the gears mesh to enable the churning oil to expand and flow around the gears.
    Type: Application
    Filed: November 14, 2012
    Publication date: May 15, 2014
    Applicant: CATERPILLAR INC.
    Inventors: Benjamin T. Nelson, Andrew J. Krajnik, John J. Krone
  • Patent number: 8677886
    Abstract: A hydraulic actuator for pump control is disclosed. The hydraulic actuator includes two hydraulically isolated chambers for actuation in one direction and two hydraulically isolated chambers for actuation in an opposite direction. Each of the four chambers is connected to a source of high pressure fluid by an electronically controlled pressure reducing valve.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: March 25, 2014
    Assignee: Caterpillar Inc.
    Inventors: Michael G. Cronin, Brian Mintah, Benjamin T. Nelson
  • Publication number: 20140013886
    Abstract: An axle assembly and method for assembling such axle assembly for a vehicle are disclosed. The axle assembly may comprise meshed ring and pinion gears, a center housing portion, and left and right leg housing portions. The center housing portion may include a center housing defining a center cavity in which the bevel gear is disposed, and at least one channel having an entrance port into the center cavity. The axle assembly may include a first conduit configured to branch off of the first channel in a first direction and a second conduit configured to branch off of the first channel in a second direction. Such channels and conduits may be integral to the center housing or substantially external to the center housing.
    Type: Application
    Filed: July 16, 2012
    Publication date: January 16, 2014
    Applicant: Caterpillar, Inc.
    Inventors: Jason Weber, John B. Salomon, Benjamin T. Nelson, Stephen R. Dockstader
  • Publication number: 20130180744
    Abstract: An implement control system may include an operator interface having a grip movable to a pose relative to an operator interface frame of reference. A grip position sensor may detect the grip pose and generate a grip pose signal, and a controller communicatively coupled to the grip position sensor may receive the grip pose signal and generating an implement control signal. An implement assembly may include an implement supported for movement relative to a machine frame of reference and a plurality of actuators operably coupled to the implement and communicatively coupled to the controller. The plurality of implement actuators is configured to actuate in response to the implement control signal to drive the implement toward an implement pose relative to the machine frame of reference that corresponds to the grip pose.
    Type: Application
    Filed: January 12, 2012
    Publication date: July 18, 2013
    Applicant: CATERPILLAR, INC.
    Inventors: Scott Favreau, Benjamin T. Nelson
  • Publication number: 20120316024
    Abstract: A drive axle housing system may minimize churning of splash and spray oil within a drive axle housing. The drive axle housing system includes apparatus for incorporation into the axle, the apparatus including an oil churning reduction member that may be affixed to the interior walls of the axle housing. The oil churning reduction member includes interior surfaces adapted to closely align with interior moving gear components of the axle to minimize efficiency losses due to oil movement. The system may also incorporate an annular element, affixed to the axle housing and closely aligned with the backside of a ring gear component of the differential axle. The combined use of the member and the element may substantially reduce torque losses attributable to excessive churning of oil.
    Type: Application
    Filed: June 13, 2011
    Publication date: December 13, 2012
    Applicant: CATERPILLAR, INC.
    Inventors: Jason Weber, Dale C. Messmore, John B. Salomon, Benjamin T. Nelson
  • Publication number: 20120168249
    Abstract: An elevated hunting stand includes a ladder assembly and a platform assembly. A pair of vertical uprights is connected to the platform at a front portion of the platform. A pair of vertical uprights is connected to the platform at a rear portion of the platform. A pair of horizontal stabilizer members is attached to the vertical uprights. A pair of enclosure gates is attached to the vertical uprights. The vertical uprights, the horizontal stabilizer member, and the pair of enclosure gates form an enclosure on the platform. The enclosure gates are movable from an open position to a closed position.
    Type: Application
    Filed: April 11, 2011
    Publication date: July 5, 2012
    Applicant: ARDISAM, INC.
    Inventors: Michael R. Furseth, Scott R. Nickell, Randy L. Schamberger, Benjamin T. Nelson
  • Publication number: 20120125715
    Abstract: A modular tree climbing ladder including a support member, at least one stabilizing bracket secured to the support member, and a pair of steps pivotally secured to the support member. The support member includes a front piece and a rear piece configured to form two channels that oppose one another and form an interior angle of less than 180 degrees. The steps are each pivotally secured to the support member within one of respective said opposing channels such that each of said steps oppose one another and form an angle equal to said interior angle. The steps are independently rotatable from a vertical (or storage) position to a horizontal (or operational) position. The steps include a stepping surface and are secured to said support member such that respective stepping surfaces are coplanar when both steps are in the horizontal position. The modular tree climbing ladder can further include a securing belt mounting bracket that is secured to the support member.
    Type: Application
    Filed: March 15, 2011
    Publication date: May 24, 2012
    Applicant: Ardisam, Inc.
    Inventors: Michael R. Furseth, Randy L. Schamberger, Benjamin T. Nelson
  • Publication number: 20120080267
    Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can rotate from a transport configuration to an operable configuration. The platform in the operable configuration is approximately perpendicular to the support post. The platform has a tree contact point positioned above a plane of the platform when the platform is in the horizontal position. The platform can comprise a plurality of hexagons with groups of three hexagons intersecting at a point and forming a honeycomb pattern defining a top standing surface on which a hunter can stand. The contact point is configured to create an over-center locking action. The tree stand can also include a stackable ladder coupled to the platform.
    Type: Application
    Filed: October 4, 2011
    Publication date: April 5, 2012
    Applicant: ARDISAM, INC.
    Inventors: Michael R. Furseth, Randy L. Schamberger, Benjamin T. Nelson
  • Publication number: 20120080269
    Abstract: Tree stands are disclosed for providing an elevated standing location. The tree stand can include a support post, a seat rotatably coupled to the first end of the support post, and a platform rotatably coupled to the second end of the support post. The platform can comprise a plurality interconnected polygonal shapes defining a top standing surface. The platform can be a grating that has load bearing properties and that can be cast from a mold. The platform includes a perimeter wall, a surface portion, and one or more reinforcement walls. A height or thickness of the surface portion is less than a height or thickness of the perimeter wall and/or the reinforcement walls.
    Type: Application
    Filed: November 10, 2011
    Publication date: April 5, 2012
    Applicant: ARDISAM, INC.
    Inventors: Michael R. Furseth, Randy L. Schamberger, Benjamin T. Nelson, Brendan Lonergan