Daniel T Shore

US Patent:

6650985, Nov 18, 2003

Filed:

Dec 28, 2001

Appl. No.:

10/034953

Inventors:

Daniel B. Shore - Prospect Heights IL

Assignee:

Case, LLC - Racine WI

International Classification:

G06G 776

US Classification:

701 50, 701 41, 180291, 172 45, 414686

Abstract:

A skid steer vehicle has sprung suspensions, variable displacement pumps and motors connected to those pumps that drive the wheels on the vehicle as well as an electronic controller that receives signals that indicate lateral acceleration of the skid steer vehicle during turns. The controller determines whether the lateral acceleration exceeds a predetermined value, and locks up the outboard suspensions if that value is exceeded. The signals can be provided by an accelerometer, a satellite receiver, wheel/motor speed sensors, sensors in the pumps that signal the specific displacement of the pumps (such as their swash plate position, or memory locations that contain previously calculated specific displacement commands that are used to drive the pumps to a particular displacement.

US Patent:

6971463, Dec 6, 2005

Filed:

Dec 23, 2002

Appl. No.:

10/327748

Inventors:

Daniel B. Shore - Prospect Heights IL, US
Peter J. Dix - Naperville IL, US

Assignee:

CNH America LLC - New Holland PA

International Classification:

B60K006/00

US Classification:

180165, 180 696, 180308

Abstract:

A work vehicle having a hydrostatic drive system provides for the recovery and reuse of the vehicle's kinetic energy by conducting pressurized hydraulic fluid out of the hydrostatic drive system into an accumulator during vehicle deceleration, and conducting the pressurized fluid back into the drive system during vehicle acceleration to assist the vehicle's engine in accelerating the vehicle.

US Patent:

7044482, May 16, 2006

Filed:

Sep 19, 2003

Appl. No.:

10/664568

Inventors:

Daniel B. Shore - Prospect Heights IL, US

Assignee:

CNH America LLC - New Holland PA

International Classification:

B60G 17/00
B60G 11/30
B60G 11/56
B60G 11/64

US Classification:

280 6157, 28012416, 280124162

Abstract:

A skid steer vehicle has a suspension that includes a control arm pivotally coupled to the vehicle chassis that is supported by a hydraulic cylinder connected to an accumulator to provide springing. A hydraulic circuit coupled to the cylinder and accumulator permit the operator to raise and lower the chassis, to lock the suspension while the vehicle is loaded, and to automatically charge or discharge the accumulator to match the cylinder pressure during loading and unloading. In this manner, when the suspension is unlocked after loading, the vehicle chassis neither rises nor falls.

US Patent:

7226064, Jun 5, 2007

Filed:

Feb 8, 2006

Appl. No.:

11/351038

Inventors:

Daniel B. Shore - Prospect Heights IL, US

Assignee:

CNH America LLC - New Holland PA

International Classification:

B60G 17/056

US Classification:

280124159, 280 6159

Abstract:

A skid steer vehicle has a suspension that includes a control arm pivotally coupled to the vehicle chassis that is supported by a hydraulic cylinder connected to an accumulator to provide springing. A hydraulic circuit coupled to the cylinder and accumulator permit the operator to raise and lower the chassis, to lock the suspension while the vehicle is loaded, and to automatically charge or discharge the accumulator to match the cylinder pressure during loading and unloading. In this manner, when the suspension is unlocked after loading, the vehicle chassis neither rises nor falls.

US Patent:

40156192, Apr 5, 1977

Filed:

Mar 24, 1975

Appl. No.:

5/561119

Inventors:

Daniel B. Shore - Niles IL
Probir K. Chatterjea - Mount Prospect IL

Assignee:

International Harvester Company - Chicago IL

International Classification:

F15B 1306

US Classification:

137102

Abstract:

Clutch-brake steering unit having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket in a crawler tractor. Specifically a clutch cylinder and a brake cylinder provided in the unit have an inlet-outlet port in common, and are so arranged on a spring-applied-brake, hydraulically-applied-clutch basis that a single pressure signal in the inlet-outlet port alternately operates the cylinders to apply the brake and release the clutch, to apply the clutch and release the brake, or by proper modulation to partially engage either, i. e. , slip the clutch or drag the brake to intermediate degrees as desired.

US Patent:

42878136, Sep 8, 1981

Filed:

Dec 20, 1979

Appl. No.:

6/105692

Inventors:

Probir K. Chatterjea - Mt. Prospect IL
Daniel B. Shore - Niles IL

Assignee:

International Harvester Company - Chicago IL

International Classification:

F15B 13042
F15B 1314

US Classification:

91434

Abstract:

Booster providing both hydraulic feed-back and hydraulic feel-back in a two-stage operation in which we boost-brake a vehicle. Concentric, nesting, inner and outer control parts include, as the sliding outer part, a brake-pedal-connected input signal spool or sleeve for developing a desired signal pressure varying linearly along the length of, and therefore according to the sliding position of, the sleeve; the inner part constitutes a captive, telescoping metering spool with its ends in corresponding ends of the spool sleeve. At one end, the metering spool is given the desired signal as a first stage pressure to respond to; the spool's response constitutes the second stage, by metering an actual pressure and applying it at the other end of the spool sleeve and spool, whereby hydraulic feed-back comes on in the second stage at actual pressure to responsively control the other end of the metering spool, and whereby hydraulic feel-back in the second stage comes on at the same actual pressure to exert itself on the other end of the spool sleeve and therefore react against the brake pedal.

US Patent:

44679009, Aug 28, 1984

Filed:

May 23, 1983

Appl. No.:

6/488221

Inventors:

Daniel B. Shore - Niles IL
Probir K. Chatterjea - Mount Prospect IL

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

B60K 4124

US Classification:

192 13R

Abstract:

Clutch-brake steering unit having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket in a crawler tractor. Specifically a clutch cylinder and a brake cylinder provided in the unit have an inlet-outlet port in common, and are so arranged on a spring-applied-brake, hydraulically-applied-clutch basis that a single pressure signal in the inlet-outlet port alternately operates the cylinders to apply the brake and release the clutch, to apply the clutch and release the brake, or by proper modulation to partially engage either, i. e. , slip the clutch or drag the brake to intermediate degrees as desired.

US Patent:

44073283, Oct 4, 1983

Filed:

Apr 9, 1981

Appl. No.:

6/252533

Inventors:

Daniel B. Shore - Niles IL
Probir K. Chatterjea - Mount Prospect IL

Assignee:

Dresser Industries, Inc. - Dallas TX

International Classification:

F15B 1306

US Classification:

1376256

Abstract:

Clutch-brake steering unit having hydraulically actuated cylinders for controlling same to control rotation of a track-drive sprocket in a crawler tractor. Specifically a clutch cylinder and a brake cylinder provided in the unit have an inlet-outlet port in common, and are so arranged on a spring-applied-brake, hydraulically-applied-clutch basis that a single pressure signal in the inlet-outlet port alternately operates the cylinders to apply the brake and release the clutch, to apply the clutch and release the brake, or by proper modulation to partially engage either, i. e. , slip the clutch or drag the brake to intermediate degrees as desired.