Patents by Inventor Thomas A. Roth

Thomas A. Roth 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: 9181958
    Abstract: A hydrostatic apparatus is disclosed. The hydrostatic apparatus comprises a pump, an input shaft, a fan and a fan shroud. The pump comprises a housing, an end cap, a first end and a second end. The input shaft extending from the first end and the second end of the pump. The fan is attached to one end of the input shaft. The fan shroud is also attached to the pump.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: November 10, 2015
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Thomas Kopel, Thomas A. Roth, Thomas P. Gavin, B. Keith Harshman, Bryce E. Steenburg, Raymond Hauser, Lonnie E. Holder
  • Patent number: 9068298
    Abstract: A variable width distribution apparatus (1) for distributing asphalt hot-mix, or similar material, across the full width of a surface to be paved comprises at least two auger support members (9), each auger support member positioned coaxially with each other and configured to engage with an adjacent auger support member (9) to form a combined support of variable length; and at least two auger slide sections (3) comprising an outboard auger slide section (3B) coupled to an outboard auger support section at an outboard end via a hanger, each auger slide section positioned coaxially with each other and configured to engage with an adjacent auger slide section to form a combined auger of variable length; such that extension or retraction of the auger support members (9) along a path of least resistance as the apparatus (1) moves over a surface to be paved causes a corresponding extension or retraction of the auger slide sections (3) with respect to an adjacent auger slide section (3) and such that each auger slid
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: June 30, 2015
    Assignee: THE BENJAMIN EVERETT FAMILY TRUST
    Inventors: Benjamin John Everett, Thomas A. Roth
  • Patent number: 8858198
    Abstract: A hydrostatic apparatus is disclosed. The hydrostatic apparatus comprises a pump, an input shaft, a fan and a fan shroud. The pump comprises a housing, an end cap, a first end and a second end. The input shaft extending from the first end and the second end of the pump. The fan is attached to one end of the input shaft. The fan shroud is also attached to the pump.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: October 14, 2014
    Assignee: Hydro-Gear Limited Partnership
    Inventors: Thomas Kopel, Thomas A. Roth, Thomas P. Gavin, B. Keith Harshman, Bryce E. Steenburg, Raymond Hauser, Lonnie E. Holder
  • Publication number: 20120163913
    Abstract: The invention provides a variable width material distribution apparatus for use with an asphalt paving machine for distributing asphalt screed across a surface to be paved. The apparatus comprises at least two auger support members and at least two auger slide sections such that extension or retraction of the auger support members along a path of least resistance as the apparatus moves over a surface to be paved causes a corresponding extension or retraction of the auger slide sections with respect to an adjacent auger slide section and such that each auger slide section is configured to maintain a continuous worm with respect to an adjacent auger slide section when in an extended position in relation to one another.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 28, 2012
    Inventors: Benjamin John Everett, Thomas A. Roth
  • Patent number: 7121636
    Abstract: A drive track is for a wheel train for mobilizing a paving vehicle upon a ground surface, the wheel train including a drive wheel and a bogie wheel. The track includes an endless body disposable about the wheel train and having a driven portion engageable by the drive wheel such that the drive wheel circulates the track about the wheel train. A generally annular rail portion is connected with the drive portion and has a continuous inner circumferential surface contactable with the bogie wheel, such that the bogie wheel rolls along the inner surface, and a continuous outer circumferential surface contactable with the ground surface. The rail portion supports the bogie wheel above the ground surface such that when the track circulates about the wheel train, a distance between the bogie wheel axis and the ground surface remains substantially constant as the bogie wheel rolls along the rail inner surface.
    Type: Grant
    Filed: September 4, 2002
    Date of Patent: October 17, 2006
    Assignee: Ingersoll-Rand Company
    Inventors: Mikel A. Blank, Chad M. Larson, Thomas A. Roth
  • Patent number: 6832872
    Abstract: A device is provided for discharging two gases from a vehicle to ambient air, one gas having pressure pulsation of a first magnitude. The device includes an elongated body connected with the vehicle and having a first inlet connected with a first gas source, a second inlet connected with a second gas source, an outlet fluidly communicable with ambient air, and an interior mixing chamber, the two inlets being fluidly communicable with the chamber such that the two gases flow into the chamber. The body combines the two gases within the mixing chamber to form a combined gas having pressure pulsation of a lesser, second magnitude and to discharge the combined gas to ambient air. Preferably, the body includes an outer tubular member having the first inlet and the outlet and an inner tubular member disposed within the outer member and including the second inlet and a plurality of ports.
    Type: Grant
    Filed: November 13, 2002
    Date of Patent: December 21, 2004
    Assignee: Blaw-Knox Construction Equipment Corporation
    Inventors: Mark D. Koelm, Thomas A. Roth
  • Publication number: 20040146354
    Abstract: A main frame assembly is for a paving vehicle having an engine and two wheel assemblies, at least one of the wheel assemblies being operably connectable with the engine for mobilizing the vehicle. The frame assembly includes a lower frame having two opposing sides, each side being configured to connect with a separate one of the two drive assemblies, and a mounting portion. An upper frame is connectable, preferably removably connectable, with the lower frame. The upper frame has a compartment configured to receive the engine and an attachment portion, the upper frame attachment portion being connected with the lower frame mounting portion so as to connect the upper and lower frames.
    Type: Application
    Filed: January 8, 2003
    Publication date: July 29, 2004
    Inventors: Gene Goodwin, Thomas A. Roth, Thomas Thomason, Larry Craig, Mark D. Koelm, Scott Szabo, Nancy Goodwin
  • Publication number: 20040088968
    Abstract: A device is provided for discharging two gases from a vehicle to ambient air, one gas having pressure pulsation of a first magnitude. The device includes an elongated body connected with the vehicle and having a first inlet connected with a first gas source, a second inlet connected with a second gas source, an outlet fluidly communicable with ambient air, and an interior mixing chamber, the two inlets being fluidly communicable with the chamber such that the two gases flow into the chamber. The body combines the two gases within the mixing chamber to form a combined gas having pressure pulsation of a lesser, second magnitude and to discharge the combined gas to ambient air. Preferably, the body includes an outer tubular member having the first inlet and the outlet and an inner tubular member disposed within the outer member and including the second inlet and a plurality of ports.
    Type: Application
    Filed: November 13, 2002
    Publication date: May 13, 2004
    Inventors: Mark D. Koelm, Thomas A. Roth
  • Patent number: 6712549
    Abstract: A wheel assembly is for mobilizing a construction vehicle upon a base surface and includes a frame connected with the vehicle and configured to pivot about a first axis. At least one and preferably two axles are connected with the frame and configured to pivot respectively about a second axis and a third axis, the second and third axes each extending generally perpendicularly with respect to the first axis. Each axle has a longitudinal centerline extending generally perpendicularly with respect to the second axis. Two wheels are preferably connected with each axle so as to rotate generally about each axle centerline. When the wheels are disposed generally upon the base surface, the wheels roll with respect to the surface so as to at least partially mobilize the vehicle. Further, angular displacement of the frame and the axle about the second axis move the wheels within two perpendicular vertical planes.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: March 30, 2004
    Assignee: Blaw-Knox Construction Equipment Corporation
    Inventor: Thomas A. Roth
  • Publication number: 20040009038
    Abstract: A wheel assembly is for mobilizing a construction vehicle upon a base surface and includes a frame connected with the vehicle and configured to pivot about a first axis. At least one and preferably two axles are connected with the frame and configured to pivot respectively about a second axis and a third axis, the second and third axes each extending generally perpendicularly with respect to the first axis. Each axle has a longitudinal centerline extending generally perpendicularly with respect to the second axis. Two wheels are preferably connected with each axle so as to rotate generally about each axle centerline. When the wheels are disposed generally upon the base surface, the wheels roll with respect to the surface so as to at least partially mobilize the vehicle. Further, angular displacement of the frame and the axle about the second axis move the wheels within two perpendicular vertical planes.
    Type: Application
    Filed: July 9, 2002
    Publication date: January 15, 2004
    Applicant: BLAW-KNOX CONSTRUCTION EQUIPMENT CORPORATION
    Inventor: Thomas A. Roth
  • Publication number: 20030047995
    Abstract: A drive track is for a wheel train for mobilizing a paving vehicle upon a ground surface, the wheel train including a drive wheel and a bogie wheel. The track comprises an endless body disposable about the wheel train and including a driven portion engageable by the drive wheel such that the drive wheel circulates the track about the wheel train. A generally annular rail portion is connected with the drive portion and has a continuous inner circumferential surface contactable with the bogie wheel, such that the bogie wheel rolls along the inner surface, and a continuous outer circumferential surface contactable with the ground surface. The rail portion supports the bogie wheel above the ground surface such that when the track circulates about the wheel train, a distance between the bogie wheel axis and the ground surface remains substantially constant as the bogie wheel rolls along the rail inner surface.
    Type: Application
    Filed: September 4, 2002
    Publication date: March 13, 2003
    Inventors: Mikel A. Blank, Chad M. Larson, Thomas A. Roth
  • Patent number: 6152649
    Abstract: A pneumatic fumes collection system for an auger-type distributing device that spreads hot asphalt behind a mobile paver includes a rotatable auger shaft extending horizontally above a surface being paved and laterally to a longitudinal centerline axis of the paver. The shaft includes a plurality of auger flights spaced therealong, and can be raised and lowered to a plurality of elevations above the surface being paved. A fumes intake inlet is positioned above, and in a fixed spacial relation to, the auger shaft, whereby the fumes inlet raises and lowers simultaneously with the auger shaft, resulting in an a more uniform fumes collection over a plurality of auger flight elevations. A fumes exhaust fan and exhaust stack are positioned on the paver.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: November 28, 2000
    Assignee: Blaw-Know Construction Equipment Corp.
    Inventors: Craig L. Snyder, Leland J. Warren, Leonard E. Speers, Thomas A. Roth, Larry Craig
  • Patent number: 6047785
    Abstract: A paving machine that is driven by track assemblies utilizing continuous rubber belts uses a motor and planetary gear reduction combination on each drive wheel to drive each belt. Each planetary gear includes a planetary joint connection between a rotating and a non-rotating portion, with an elastomeric seal therein to retain lubricating fluid in the planetary housing. Each drive wheel is formed from a pair of annular ring members rigidly connected together and spaced apart to provide a passage for directing debris falling from a rotating drive wheel away from the planetary joint, to minimize damage to the seal.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: April 11, 2000
    Assignee: Blaw-Knox Construction Equip. Corp.
    Inventors: Craig L. Snyder, Thomas A. Roth, Thomas Thomason, Randy Webb, Jerry F. Rau
  • Patent number: 6030058
    Abstract: A paving machine is driven by track assemblies utilizing continuous rubber belts driven by drive wheels. Each drive wheel is driven by a planetary gear assembly. Each drive wheel is formed from a pair of annular ring members rigidly connected together and spaced apart to provide a passage for directing debris falling from a rotating drive wheel away from the planetary gear, to minimize damage to the planetary gear assembly.
    Type: Grant
    Filed: April 2, 1998
    Date of Patent: February 29, 2000
    Assignee: Blaw-Knox Construction Equipment Corporation
    Inventors: Craig L. Snyder, Thomas A. Roth, Thomas Thomason, Randy Webb, Jerry F. Rau