Patents Assigned to Cascade Corporation
  • Patent number: 10640349
    Abstract: A carriage for a lift truck arranged to provide for both lateral shifting and tilting of attachments such as forklift forks, in which an outer frame of the carriage is supported by a side-shifter cylinder-and-piston assembly incorporated in an inner frame, and in which the outer frame can be tilted with respect to the inner frame, about a laterally-extending central axis of the side-shifter cylinder-and-piston assembly.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: May 5, 2020
    Assignee: Cascade Corporation
    Inventors: Glenn Steven Prentice, Thomas Joshua McCall
  • Patent number: 10550886
    Abstract: A slide-bearing assembly capable of enabling sliding of a load-carrying surface relative to a load-supporting structure, such that the slide-bearing assembly may include a first arrangement of at least one substantially nonmetallic elongate bearing element capable of extending along a first load-carrying surface and a second arrangement of at least two substantially nonmetallic elongate bearing elements capable of extending longitudinally in series along a second load-carrying surface parallel to the first load-carrying surface such that the second load-carrying surface is in non-coextensive supportive relationship with the first load-carrying surface.
    Type: Grant
    Filed: July 14, 2016
    Date of Patent: February 4, 2020
    Assignee: Cascade Corporation
    Inventors: Bryan Sweeney, Glenn Prentice, Luke Hazel, Chris Walthers
  • Patent number: 10494241
    Abstract: Different exemplary control systems for a hydraulically powered load-handling clamp, of the type usually mountable on industrial lift trucks or automatically guided vehicles, are disclosed. The disclosed systems variably limit a hydraulic force, by which load-clamping arms move a load substantially transversely, automatically depending on the weight of the load being moved, so as to avoid excessive transverse force applied to fragile loads.
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: December 3, 2019
    Assignee: Cascade Corporation
    Inventor: David W. Petronek
  • Patent number: 10377617
    Abstract: An opposable clamp arm of a load handling device such as a lift truck attachment. An upper clamp pad portion may have a generally planar plate as a main member and may have a load-gripping face layer. A lower clamp pad assembly has a plurality of separately replaceable wear-compensating load-contacting elements mounted interchangeably on a backing plate attached to a stabilizer member of the clamp arm. The load-contacting elements may be secured to the backing plate by retainer bars fastened to the backing plate with flanges of the retainer bars overlapping margins of the load contact elements.
    Type: Grant
    Filed: January 16, 2018
    Date of Patent: August 13, 2019
    Assignee: Cascade Corporation
    Inventors: Mark Schindlbeck, Richard R. Estep
  • Publication number: 20190241417
    Abstract: A carriage for a lift truck arranged to provide for both lateral shifting and tilting of attachments such as forklift forks, in which an outer frame of the carriage is supported by a side-shifter cylinder-and-piston assembly incorporated in an inner frame, and in which the outer frame can be tilted with respect to the inner frame, about a laterally-extending central axis of the side-shifter cylinder-and-piston assembly.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 8, 2019
    Applicant: Cascade Corporation
    Inventors: Glenn Steven Prentice, Thomas Joshua McCall
  • Publication number: 20190218082
    Abstract: An opposable clamp arm of a load handling device such as a lift truck attachment. An upper clamp pad portion may have a generally planar plate as a main member and may have a load-gripping face layer. A lower clamp pad assembly has a plurality of separately replaceable wear-compensating load-contacting elements mounted interchangeably on a backing plate attached to a stabilizer member of the clamp arm. The load-contacting elements may be secured to the backing plate by retainer bars fastened to the backing plate with flanges of the retainer bars overlapping margins of the load contact elements.
    Type: Application
    Filed: January 16, 2018
    Publication date: July 18, 2019
    Applicant: Cascade Corporation
    Inventors: Mark SCHINDLBECK, Richard R. ESTEP
  • Patent number: 10280588
    Abstract: A coupler is configured to couple an implement to an earth moving or materials handling machine. The coupler includes a locking member for locking a pin of an implement into a coupler in the recess. The locking member is driven by a hydraulic arrangement, with the hydraulic cylinder body being formed integrally with either the coupler body or the locking member. The coupler may be adapted to accommodate a range of implement pin spacings and/or diameters, so that the coupler can be used with different implements and in particular with different makes of implement.
    Type: Grant
    Filed: January 4, 2018
    Date of Patent: May 7, 2019
    Assignee: Cascade Corporation
    Inventors: Matthew James Calvert, David Aperahama Calvert
  • Publication number: 20190023547
    Abstract: A layer-picking load-clamping and lifting assembly for mounting on a lift truck is capable of bidirectionally side-shifting a load-clamping assembly substantially straightly along a side-shifting length. The load clamping assembly has opposed clamp arms each selectively movable along a direction parallel to the side-shifting length so as to be selectively separable in a plurality of different possible relationships.
    Type: Application
    Filed: July 19, 2017
    Publication date: January 24, 2019
    Applicant: Cascade Corporation
    Inventors: Francesco Andriolo, Roberto Mazzoleni
  • Patent number: 10168202
    Abstract: A load-weighing assembly has a substantially laterally-extending beam-type load-weighing platform, and a substantially laterally-extending cantilever-type fork blade member located beneath the platform, interconnected by a load weight-measuring cell. The weight measuring cell is laterally movable with respect to at least one of the platform and blade member during an initial part of a load weighing process so as to minimize transmission of lateral force between the platform and the weight-measuring cell, thereby compensating for load-weighing errors which would otherwise occur.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: January 1, 2019
    Assignee: Cascade Corporation
    Inventor: Lawrence E. Richards
  • Publication number: 20180363682
    Abstract: A fluid power control system for load handling mobile equipment includes a pair of hydraulic actuators for moving respective cooperating load-engaging members selectively toward or away from each other, or in a common direction, at respective asynchronous speeds to selectively attain either synchronous or asynchronous respective positions of the actuators. The actuators have sensors enabling a controller to monitor their respective movements and correct unintended differences in the actuators' respective movements, such as unintended differences in relative intended positions, speeds, or rates of change of speeds. Respective hydraulic valves responsive to the controller separately and nonsimultaneously decrease respective flows through the respective actuators to more accurately and rapidly correct differences from the intended relative movements of the actuators.
    Type: Application
    Filed: August 27, 2018
    Publication date: December 20, 2018
    Applicant: Cascade Corporation
    Inventors: Pat S. McKERNAN, Gregory A. NAGLE
  • Patent number: 10131525
    Abstract: A load-bearing assembly including a clamping-force sensor in a pivoting support assembly that is adjustable to vary a radial spacing between a pivot pin and a clamp pad supported on the support assembly. A plurality of clamping-force sensors may be included in a plurality of pivoting clamp pad support assemblies to support a clamp pad and may be arranged to sense the magnitude of a clamping force exerted by a particular adjustable pivoting clamp pad support assembly and send signals indicative of the magnitude of the force to a controller. Force values sensed and transmitted to the controller may be used to evaluate and adjust the clamp arm assembly to grasp a load with a desired clamping force or distribution of clamping forces.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: November 20, 2018
    Assignee: Cascade Corporation
    Inventor: Brian Sinclair White
  • Publication number: 20180312384
    Abstract: A load-bearing assembly including a clamping-force sensor in a pivoting support assembly that is adjustable to vary a radial spacing between a pivot pin and a clamp pad mounted on the support assembly. A plurality of clamping-force sensors may be included in a plurality of pivoting clamp pad support assemblies to support a clamp pad and may be arranged to sense the magnitude of a clamping force exerted by a particular adjustable pivoting clamp pad support assembly and send signals indicative of the magnitude of the force to a controller. A load sensor may be located between a pivot pin and a bearing block, or strain gauges may be mounted in the pivoting bearing block so as to measure forces carried through the bearing block. Force values sensed and transmitted to the controller may be used to evaluate and adjust the clamp arm assembly to grasp a load with a desired clamping force or distribution of clamping forces.
    Type: Application
    Filed: July 2, 2018
    Publication date: November 1, 2018
    Applicant: Cascade Corporation
    Inventors: Brian Sinclair WHITE, Davide RONCARI
  • Patent number: 10087958
    Abstract: A fluid power control system for load handling mobile equipment includes a pair of hydraulic actuators for moving respective cooperating load-engaging members selectively toward or away from each other, or in a common direction, at respective asynchronous speeds to selectively attain either synchronous or asynchronous respective positions of the actuators. The actuators have sensors enabling a controller to monitor their respective movements and correct unintended differences in the actuators' respective movements, such as unintended differences in relative intended positions, speeds, or rates of change of speeds. Respective hydraulic valves responsive to the controller separately and nonsimultaneously decrease respective flows through the respective actuators to more accurately and rapidly correct differences from the intended relative movements of the actuators.
    Type: Grant
    Filed: April 19, 2012
    Date of Patent: October 2, 2018
    Assignee: Cascade Corporation
    Inventors: Pat S. McKernan, Gregory A. Nagle
  • Publication number: 20180252572
    Abstract: Hydraulic valve circuitry adapted for automatic weight-responsive control of load-clamping members of a load-lifting system having a free lift mast. The load-lifting system generally includes one or more fluid power actuator for applying a gripping force to a load, at least one elongate, longitudinally-extensible fluid power lifting device having a free lift range of motion and at least one main lift range of motion, and manually operated load-clamping and load-lifting selector valves. The hydraulic valve circuitry provides, independently, weight-responsive control of the load-clamping members when lifting a load, full-time automatic weight-responsive force control of the load-clamping members without concurrent manual actuation of load-clamping or load-lifting selector valves, and equalization of sensed load weight so that the sensed load weight is substantially independent of the longitudinally-extensible position of the lifting device.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Applicant: Cascade Corporation
    Inventor: David W. Petronek
  • Publication number: 20180212434
    Abstract: Methods and systems for wirelessly transmitting power and/or data.
    Type: Application
    Filed: March 22, 2018
    Publication date: July 26, 2018
    Applicant: Cascade Corporation
    Inventors: Pat S. McKernan, Gregory A. Nagle
  • Patent number: 10017366
    Abstract: A load-handling clamp mountable on a lift truck has one or more hydraulic clamping cylinders of the type having two or more sequentially extensible stages capable of applying either load-weight-responsive variable hydraulic load-clamping force or, alternatively, load-size-responsive variable hydraulic load-clamping force, without risking the clamp's dropping of a clamped load. The length of the hydraulic clamping cylinder(s) may in some applications extend generally forwardly from a supporting lift truck, and in other applications extend generally laterally from a supporting lift truck.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: July 10, 2018
    Assignee: Cascade Corporation
    Inventor: Brent G. Running
  • Patent number: 10011468
    Abstract: A load-bearing assembly including a clamping-force sensor in a pivoting support assembly that is adjustable to vary a radial spacing between a pivot pin and a clamp pad mounted on the support assembly. A plurality of clamping-force sensors may be included in a plurality of pivoting clamp pad support assemblies to support a clamp pad and may be arranged to sense the magnitude of a clamping force exerted by a particular adjustable pivoting clamp pad support assembly and send signals indicative of the magnitude of the force to a controller. A load sensor may be located between a pivot pin and a bearing block, or strain gauges may be mounted in the pivoting bearing block so as to measure forces carried through the bearing block. Force values sensed and transmitted to the controller may be used to evaluate and adjust the clamp arm assembly to grasp a load with a desired clamping force or distribution of clamping forces.
    Type: Grant
    Filed: October 26, 2015
    Date of Patent: July 3, 2018
    Assignee: Cascade Corporation
    Inventors: Brian Sinclair White, Davide Roncari
  • Publication number: 20180155171
    Abstract: An improved hydraulic control system for a lift truck attachment having opposed clamp arms that selectively grip and release a load. The improved hydraulic system utilizes a secondary hydraulic force control circuit that increases the gripping force on the load independently of inward movement of the clamp arms.
    Type: Application
    Filed: December 1, 2016
    Publication date: June 7, 2018
    Applicant: Cascade Corporation
    Inventor: Christopher M. Walthers
  • Publication number: 20180127947
    Abstract: A coupler is configured to couple an implement to an earth moving or materials handling machine. The coupler includes a locking member for locking a pin of an implement into a coupler in the recess. The locking member is driven by a hydraulic arrangement, with the hydraulic cylinder body being formed integrally with either the coupler body or the locking member. The coupler may be adapted to accommodate a range of implement pin spacings and/or diameters, so that the coupler can be used with different implements and in particular with different makes of implement.
    Type: Application
    Filed: January 4, 2018
    Publication date: May 10, 2018
    Applicant: Cascade Corporation
    Inventors: Matthew James Calvert, David Aperahama Calvert
  • Patent number: 9964428
    Abstract: Hydraulic valve circuitry adapted for automatic weight-responsive control of load-clamping members of a load-lifting system having a free lift mast. The load-lifting system generally includes one or more fluid power actuator for applying a gripping force to a load, at least one elongate, longitudinally-extensible fluid power lifting device having a free lift range of motion and at least one main lift range of motion, and manually operated load-clamping and load-lifting selector valves. The hydraulic valve circuitry provides, independently, weight-responsive control of the load-clamping members when lifting a load, full-time automatic weight-responsive force control of the load-clamping members without concurrent manual actuation of load-clamping or load-lifting selector valves, and equalization of sensed load weight so that the sensed load weight is substantially independent of the longitudinally-extensible position of the lifting device.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: May 8, 2018
    Assignee: Cascade Corporation
    Inventor: David W. Petronek