Patents Assigned to White Hydraulics INC
  • DISK SPRING HYDRAULIC RELEASE BRAKE
    Publication number: 20080173515
    Abstract: A selectively engageable friction mechanism such as a brake assembly including hard anodized brake disks having a single cross section and a bias assembly including a single spring, in the preferred embodiment such spring being a belleville spring
    Type: Application
    Filed: January 9, 2008
    Publication date: July 24, 2008
    Applicant: White Hydraulics, Inc.
    Inventor: Richard Daigre
  • Hydraulic Motor and Brake Control System and Method of Controlling the Same
    Publication number: 20070210643
    Abstract: A hydraulic control system for operating at least one hydraulic motor and at least one hydraulic brake. In one specific embodiment of the invention, the hydraulic motor and brake are part of an industrial vehicle.
    Type: Application
    Filed: March 30, 2007
    Publication date: September 13, 2007
    Applicant: WHITE HYDRAULICS, INC.
    Inventor: Gerard Perkins
  • Mechanically applied/hydraulically released brake
    Patent number: 6988597
    Abstract: A spring applied/hydraulically released brake mechanism for a mechanical brake including an actuator lever extending between a movable piston, which piston is normally biased to a closed position by a spring with a selective pressurization of a chamber on the other side of the piston deactivating the mechanical brake through the lever.
    Type: Grant
    Filed: January 26, 2002
    Date of Patent: January 24, 2006
    Assignee: White Hydraulics, Inc.
    Inventor: Richard Daigre
  • Method and apparatus for grinding rotors for hydraulic motors and apparatus therefor
    Patent number: 6923712
    Abstract: A fixture for selectively locating and retaining hydraulic gerotor rotors in position in respect to a grinding wheel, the fixture clamping the rotor between two oversized positioning rolls located in rotor lobe valleys on opposite sides of the rotor.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: August 2, 2005
    Assignee: White Hydraulics, Inc.
    Inventor: Hollis Newcomb White
  • Increased capacity valving plates for a hydraulic motor
    Patent number: 6872064
    Abstract: A hydraulic gerotor motor utilizing the holes surrounding the main assembly bolts together with interconnecting radially extending passages so as to allow for the transfer of fluid axially through the device from a single fluid input hole to an area 360° surrounding a valve.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: March 29, 2005
    Assignee: White Hydraulics INC
    Inventor: Hollis Newcomb White
  • Multiplate hydraulic motor valve
    Patent number: 6623260
    Abstract: A hydraulic pressure device valve having an outer circumferential support to a surrounding housing journal is constructed of a series of flat plates brazed together to form a unitary member containing substantially all of the valving passages of the entire device.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: September 23, 2003
    Assignee: White Hydraulics, Inc.
    Inventor: Hollis Newcomb White
  • Disk spring hydraulic clutch/brake
    Publication number: 20030150674
    Abstract: A selectively engageable friction mechanism such as a brake assembly including hard anodized brake disks having a single cross section and a bias assembly including a single spring, in the preferred embodiment such spring being a belleville spring.
    Type: Application
    Filed: February 13, 2002
    Publication date: August 14, 2003
    Applicant: WHITE HYDRAULICS, INC.
    Inventor: Richard Daigre
  • Mechanically applied/hydraulically released brake
    Publication number: 20030141152
    Abstract: A spring applied/hydraulically released brake mechanism for a mechanical brake including an actuator lever extending between a movable piston, which piston is normally biased to a closed position by a spring with a selective pressurization of a chamber on the other side of the piston deactivating the mechanical brake through the lever.
    Type: Application
    Filed: January 26, 2002
    Publication date: July 31, 2003
    Applicant: White Hydraulics, Inc.
    Inventor: Richard Daigre
  • Multiplate hydraulic motor valve
    Publication number: 20020122734
    Abstract: A hydraulic pressure device valve having an outer circumferential support to a surrounding housing journal is constructed of a series of flat plates brazed together to form a unitary member containing substantially all of the valving passages of the entire device.
    Type: Application
    Filed: December 27, 2001
    Publication date: September 5, 2002
    Applicant: WHITE HYDRAULICS, INC.
    Inventor: Hollis Newcomb White
  • Increased capacity valving plates for a hydraulic motor
    Publication number: 20020102176
    Abstract: A hydraulic gerotor motor utilizing the holes surrounding the main assembly bolts together with interconnecting radially extending passages so as to allow for the transfer of fluid axially through the device from a single fluid input hole to an area 360° surrounding a valve.
    Type: Application
    Filed: December 3, 2001
    Publication date: August 1, 2002
    Applicant: WHITE HYDRAULICS, INC.
    Inventor: Hollis Newcomb White
  • Method and apparatus for grinding rotors for hydraulic motors and apparatus therefor
    Patent number: 6425807
    Abstract: A fixture for selectively locating and retaining hydraulic gerotor rotors in position in respect to a grinding wheel, the fixture clamping the rotor between two oversized positioning rolls located in rotor lobe valleys on opposite sides of the rotor.
    Type: Grant
    Filed: April 29, 1999
    Date of Patent: July 30, 2002
    Assignee: White Hydraulics, Inc.
    Inventor: Hollis Newcomb White
  • Hydraulic motor seal
    Patent number: 6394775
    Abstract: A seal for a hydraulic pressure device, which seal is located at the joint where one part circumferentially surrounds another part with both of the parts contacting a single adjoining surface, seal being in sealing contact with both parts and the adjoining surface.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: May 28, 2002
    Assignee: White Hydraulics, Inc
    Inventor: Hollis Newcomb White
  • Method and apparatus for grinding rotors for hydraulic motors and apparatus therefor
    Publication number: 20020052168
    Abstract: A fixture for selectively locating and retaining hydraulic gerotor rotors in position in respect to a grinding wheel, the fixture clamping the rotor between two oversized positioning rolls located in rotor lobe valleys on opposite sides of the rotor.
    Type: Application
    Filed: December 19, 2001
    Publication date: May 2, 2002
    Applicant: WHITE HYDRAULICS, INC.
    Inventor: Hollis Newcomb White
  • Increased capacity valving plates for a hydraulic motor
    Patent number: 6345969
    Abstract: A hydraulic gerotor motor utilizing the holes surrounding the main assembly bolts together with interconnecting radially extending passages so as to allow for the transfer of fluid axially through the device from a single fluid input hole to an area 360° surrounding a valve.
    Type: Grant
    Filed: June 28, 2000
    Date of Patent: February 12, 2002
    Assignee: White Hydraulics, Inc.
    Inventor: Hollis Newcomb White
  • Dressing wheel system
    Patent number: 6338672
    Abstract: An apparatus for providing a flat to stepped convex facing for grinding wheels used for the finished machining of parts, the apparatus including dressing wheels located only at the outer diameter of the Cubic-Boron-Nitride wheels to be dressed.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: January 15, 2002
    Assignee: White Hydraulics, Inc.
    Inventor: Hollis Newcomb White
  • Hydraulic motor with pressure compensating manifold
    Patent number: 6257853
    Abstract: A pressure compensating manifold for a gerotor device having a manifold with bidirectional valving passages and a passage selectively connecting as least one of such bidirectional passages to a chamber behind the manifold so as to pressure equalize the gerotor structure.
    Type: Grant
    Filed: June 5, 2000
    Date of Patent: July 10, 2001
    Assignee: White Hydraulics, Inc.
    Inventor: Jeffrey Neil White
  • Motor with symmetric braking system
    Patent number: 6253882
    Abstract: A hydraulic brake is interconnected to two ports of a hydraulic motor, the pressurization of either port will act on a unitary brake piston to deactivate a spring loaded brake.
    Type: Grant
    Filed: February 22, 1999
    Date of Patent: July 3, 2001
    Assignee: White Hydraulics, Inc.
    Inventor: Jeffrey Neil White
  • Dressing wheel system
    Publication number: 20010004579
    Abstract: An apparatus for providing a flat to stepped convex facing for grinding wheels used for the finished machining of parts, the apparatus including dressing wheels located only at the outer diameter of the Cubic-Boron-Nitride wheels to be dressed.
    Type: Application
    Filed: December 18, 2000
    Publication date: June 21, 2001
    Applicant: WHITE HYDRAULICS, INC.
    Inventor: Hollis Newcomb White
  • Hydraulic motor valve with integral case drain
    Patent number: 6193490
    Abstract: A pressure transfer system for a gerotor motor having a rotating valve increased non-operational pressure zone, and a reduced pressure cavity, the system comprising a check valve, said check valve being in the rotating valve, and said check valve connecting the increased non-operational pressure zone to the reduced pressure zone.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: February 27, 2001
    Assignee: White Hydraulics, Inc.
    Inventor: Hollis Newcomb White
  • Brake reaction pin
    Patent number: 6170616
    Abstract: A brake assembly for a shaft including a series of brake disks interconnected to the shaft with the interleaved reaction disks interconnected to a fixed surrounding part by accurately positioned pins.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: January 9, 2001
    Assignee: White Hydraulics INC
    Inventor: Hollis Newcomb White