Cleveland, OH, United States
Cleveland, OH, United States

Parker Hannifin Corporation, originally Parker Appliance Company, usually referred to as just Parker, is an American corporation specializing in motion and control technologies. Its corporate headquarters are in Mayfield Heights, Ohio, in Greater Cleveland . The company was founded in 1918, and has been publicly traded on the NYSE since December 9, 1964. Parker Hannifin is one of the largest companies in the world in motion control technologies, including aerospace, climate control, electromechanical, filtration, fluid and gas handling, hydraulics, pneumatics, process control, and sealing and shielding. Parker employs about 58,000 people globally.The company is ranked 211 in the Fortune 500. Wikipedia.

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Patent
Parker Hannifin | Date: 2017-02-08

A self-aligning, self-drawing coupler for coupling body assemblies together improves usability of a wearable robotic device. A self-contained removable actuator cassette improves the ease of manufacture and of replacing parts in the field. A tensioning retention system designed for one handed operation makes donning and doffing a wearable robotic device easier. A two-stage attachment system increases the range of sizes a wearable robotic device will fit. A removable, integrated ankle-foot orthotic system makes donning and doffing a wearable robotic device easier. An infinitely adjustable, integrated ankle-foot orthotic system increases the range of sizes a wearable robotic device will fit. A manually-removable hip-wing attachment system makes field changes easier, and protecting such a system from inadvertent disengagement during operation increases safety.


Patent
Parker Hannifin | Date: 2017-03-29

Control method and apparatus for a hybrid drive vehicle, having a prime mover, drive wheels, a hybrid mechanism having an energy storage device, and an electrical controller, involve collecting vehicle data characteristic of how the vehicle is operated, and comparison of the collected data with prescribed data, the prescribed data corresponding to a desired operation of the vehicle. A propulsion power limit of at least one of the hybrid mechanism or the prime mover is set based on the comparison.


Patent
Parker Hannifin | Date: 2017-03-29

A valve (10) for a refrigeration system has a valve body (12) with an inlet port (14), an outlet port (16), and walls forming a main cavity (22). A cartridge (20) is configured to reside within the main cavity (22) and has a cylinder in which a piston (30) is movable in a first direction to permit fluid flow from the inlet port to the outlet port and in a second direction to impede fluid flow from the inlet port to the outlet port. A port plate (18) is removably mounted to the valve body for closing an end opening of the main cavity through which the cartridge can be inserted into and removed from the main cavity, and has a plurality of functional ports (26a, 26b, 26c). Each of the functional ports is configured to accept at least one of plural valve control elements (28) for controlling the piston to permit or impede the fluid flow from the inlet port to the outlet port, and is disposed at an acute angle relative to a central axis of the piston, so that a functional component mounted to a respective functional port will not block access to fasteners securing the port plate to the valve body so that the port plate can be removed from the valve body without removal of the control element(s) from the port plate.


Patent
Parker Hannifin | Date: 2017-01-06

A power take off device includes input and output shafts and an integral planetary gear set. The power take off device may be a single speed or a multi-speed device. The input shaft and the output shaft are mechanically connected through the planetary gear set. The output shaft may be driven in a forward direction and/or may be driven in a reverse direction. For example, the output shaft may be driven with a speed reduction, a speed increase, or at a 1:1 ratio with the input shaft.


Patent
Parker Hannifin | Date: 2017-04-05

A pump system includes a motor, a pump, and a single shaft extending from the motor into the pump, the single shaft being configured to operate simultaneously as both a motor output shaft and a pump input shaft. A first end of the single shaft interacts with the motor, and a second end of the single shaft interacts with the pump, to configure the shaft to operate as the motor output shaft and the pump input shaft. The pump system further may include a mounting accessory configured to support the motor and the pump. The motor may be an electric motor, and the pump may be a hydraulic pump. A drive controller is configured to generate commands for controlling the electric motor, which in turn drives the pump to achieve a desired flow of hydraulic fluid.


Patent
Parker Hannifin | Date: 2017-04-26

A control system for a working machine that includes a power consumer (14) includes a prime mover (12), an energy storage unit (24) for storing energy, an auxiliary power unit (20) for generating power or consuming power, the auxiliary power unit (20) having a first connection (20a) coupled to the prime mover (12) and a second connection couplable to the energy storage unit (24). A controller (18) operatively coupled to the prime mover (12) and operatively couplable to the power consumer (14) is configured to estimate a required power of the power consumer (14), and to command the prime mover (14) to operate at an optimal operating point that produces the estimated required power. Based on a relationship between power output capability of the prime mover and power consumption of the power consumer, the controller (18) is configured to at least one of command that excess power capacity from the prime mover be provided to the auxiliary power unit for storage in the energy storage unit, or command that energy stored in the energy storage unit be provided to the auxiliary power unit to drive the power consumer.


Patent
Parker Hannifin | Date: 2017-05-24

A quick connect/disconnect coupling having a female coupler (10) and a corresponding male coupler(80). The female coupler has a non-spill configuration and includes a housing (12) and a valve body (14) slidably movable in the housing. A valve member (16) is slidably movable in the valve body toward and away from a valve seat(38), the valve member being configured to engage the male coupler. A piston (18) is interposed between a main cavity and a trap chamber (30) of the female coupler. The piston may be fixed to the valve member for common movement, and may include an internal flow passage (22) for enabling fluid connection between the main cavity and trap chamber. A check valve (74) may allow fluid flow from the trap chamber to the main cavity when the trap chamber pressure is greater than the main cavity pressure. A locking collar (50) may be independently movable of the valve body to reduce the force required to connect the couplers.


Patent
Parker Hannifin | Date: 2017-04-19

Analyte-insensitive materials comprising polymerizable monomers suitable for use in forming a hydrophilic, cross-linked gel comprising on the surface of a substrate for an electrode.


An electro-hydraulic actuation system includes a regeneration valve in fluid communication with a first fluid chamber and a second fluid chamber of a hydraulic actuator, and a dump valve is in fluid communication with the second fluid chamber and a fluid reservoir. A pump provides a flow of fluid to the first and second fluid chambers, a displacement of the pump controlling a velocity of the actuator during motion in the retraction and extension directions. An electric motor drives the pump, and a controller controls a state of the regeneration valve and the dump valve. At least one feedback device senses a system condition and provides a respective feedback signal indicative of the sensed system condition to the controller, the controller responsive to the feedback signal to determine an occurrence of an over-center load condition and control a state of the regeneration valve and the dump valve in response to the occurrence to maintain the velocity of the actuator.


Patent
Parker Hannifin | Date: 2017-04-05

An assembly of valve sections 10 includes an inlet section 12, an outlet section 14, a working section 16, and a working section 18. The working section 16 is a conventional pressure compensated working section. The working section 18 includes a directional control valve 21, a pressure compensator valve 50, and a pressure limiter valve 52. The valves 50 and 52 can be of integral construction, such that each is an essential part to complete the other. The pressure compensator valve 50 includes a pressure compensator spool 60 movable between an opened position (Figures 2 and 5) and a closed position (Figures and 6) in response to a pressure differential across the spool. The pressure limiter valve 52 includes a pressure limiter spool 76 that moves to an open position to change the pressure differential and close the pressure compensator valve when a selected limit pressure is reached.

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