Robert J Breeden

US Patent:

44804385, Nov 6, 1984

Filed:

Jan 20, 1982

Appl. No.:

6/340980

Inventors:

Robert H. Breeden - Metamora MI

Assignee:

Vickers, Incorporated - Troy MI

International Classification:

F16H 3946

US Classification:

60389

Abstract:

A hydraulic system comprising a reversible variable displacement pump, a hydraulic servo motor for controlling the direction and amount of displacement of the pump, a fluid motor connected in parallel to the pump and adapted to be driven by the pump, a pilot operated directional valve for controlling the position and direction of the servo motor system, and a valve for sensing the displacement of said pump and applying a force to the directional valve opposite to the force of the pilot pressure for moving the valve.

US Patent:

44983700, Feb 12, 1985

Filed:

Feb 22, 1982

Appl. No.:

6/351180

Inventors:

Robert H. Breeden - Metamora MI
Henry D. Taylor - Pontiac MI

Assignee:

Vickers, Incorporated - Troy MI

International Classification:

F15B 1122

US Classification:

91171

Abstract:

A hydraulic system for synchronizing telescoping sections of a crane boom comprising a fixed section and second, third and fourth sections that can be extended and retracted, hydraulic cylinders between the sections for extending and retracting the adjacent sections relative to one another and a control valve for each cylinder. Cables are provided between the sections such that a non-uniformity in movement of the sections causes a change in displacement of the cables which is sensed by position sensing devices to provide a hydraulic pilot signal for modifying flow of hydraulic fluid to the cylinders.

US Patent:

43656471, Dec 28, 1982

Filed:

Feb 4, 1980

Appl. No.:

6/117934

Inventors:

Henry D. Taylor - Pontiac MI
Robert H. Breeden - Metamora MI

Assignee:

Sperry Corporation - Troy MI

International Classification:

F16K 31383

US Classification:

137489

Abstract:

A multifunction hydraulic flow metering valve and a circuit therefore comprising a main valve, a bleed flow orifice, and a servo valve acting with the main valve provides for proportional speed control for lowering loads and as an anti-cavitation check valve. A pilot valve in the circuit acting with the main valve provides the circuit with a pressure limiting relief valve.

US Patent:

44754426, Oct 9, 1984

Filed:

Feb 8, 1982

Appl. No.:

6/346564

Inventors:

Robert H. Breeden - Metamora MI

Assignee:

Vickers, Incorporated - Troy MI

International Classification:

F15B 1108

US Classification:

91461

Abstract:

A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions, a pump for supplying fluid to said actuator, a pilot operated meter-in valve to which the fluid from the pump is supplied for controlling the direction of movement of the actuator, and pilot operated meter-out valves associated with each opening of the actuator for controlling the flow out of said actuator. The pressure of fluid being supplied to the actuator by the meter-in valve is sensed and caused to produce a force opposing the movement of the meter-out valve controlling flow from the actuator.

US Patent:

46115277, Sep 16, 1986

Filed:

Sep 6, 1985

Appl. No.:

6/774163

Inventors:

Robert H. Breeden - Metamora MI

Assignee:

Vickers, Incorporated - Troy MI

International Classification:

F15B 1108

US Classification:

91420

Abstract:

A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions, a pump for supplying fluid to said actuator, a pilot operated meter-in valve to which the fluid form the pump is supplied for controlling the direction of movement of the actuator, and pilot operated meter-out valves associated with each opening of the actuator for controlling the flow out of said actuator. The pressure of fluid being supplied to the actuator by the meter-in valve is sensed and caused to produce a force opposing the movement of the meter-out valve controlling flow from the actuator.

US Patent:

42010527, May 6, 1980

Filed:

Mar 26, 1979

Appl. No.:

6/024058

Inventors:

Robert H. Breeden - Metamora MI
Robert G. Farrell - Ortonville MI
Henry D. Taylor - Pontiac MI

Assignee:

Sperry Rand Corporation - Troy MI

International Classification:

F16H 3946
F15B 1116

US Classification:

60445

Abstract:

A hydraulic control system comprising a hydraulic actuator having opposed openings adapted to alternately function as inlets and outlets for moving the element of the actuator in opposite directions and a variable displacement pump with loading sensing control for supplying fluid to said actuator. A meter-in valve is provided to which the fluid from the pump is supplied and a pilot controller alternately supplies fluid at pilot pressure to the meter-in valve for controlling the direction and displacement of movement of the meter-in valve and the direction and velocity of the actuator. A pair of lines extends from the meter-in valve to the respective openings of the actuator and a meter-out valve is associated with each line of the actuator for controlling the flow out of the actuator when that line to the actuator does not have pressure fluid from the pump applied thereto. Each meter-out valve is pilot operated by the pilot pressure from the controller.

US Patent:

43454356, Aug 24, 1982

Filed:

May 5, 1980

Appl. No.:

6/146591

Inventors:

Robert H. Breeden - Metamora MI

Assignee:

Sperry Corporation - Troy MI

International Classification:

F04B 4908
F15B 1122
F15B 1306

US Classification:

60420

Abstract:

A hydraulic system comprising a pair of actuators operable to move a single load, each of which has a fluid inlet, a variable displacement pump including means responsive to a pressure for varying the displacement of the pump, a pilot operated meter-in valve associated with each actuator for supplying fluid from the pump to its respective actuator, and means for sensing the pressures between each meter-in valve and its associated actuator and applying an average of said pressures to said responsive means of said pump.