Other

Carr-Griff, Inc.

Ezra Dale Hartley

A pump comprising a supporting structure including a bearing support, a wobble plate, a bearing between the bearing support and the wobble plate for permitting the wobble plate to nutate and for transmitting radial loads from the wobble plate to the bearing support, a cam rotatably mounted on the supporting structure for causing the wobble plate to nutate, and a mechanism for drivingly coupling the cam to a shaft of a motor. Radial loads are transmitted by the bearing to the supporting structure rather than to the cam. The wobble plate is coupled to a suitable output device such as the diaphragm of a diaphragm pump.

Triple discharge pump

A pressure switch comprising a housing and a movable pressure responsive diaphragm in the housing cooperating therewith to define a sensing chamber. The housing has an inlet passage leading to the sensing chamber and a vent passage leading from the sensing chamber. A check valve allows fluid to flow through the inlet passage into the sensing chamber and prevents flow through the inlet passage in the reverse direction. A pressure relief valve at least partially vents the sensing chamber through the outlet passage in response to the differential pressure across the pressure relief valve reaching about a predetermined magnitude. At least a portion of the diaphragm is movable along a path in response to pressure changes in the sensing chamber and an actuator is carried by the movable portion of the diaphragm. A switch is mounted on the housing in a position to be actuated by the movement of the actuator.

Pressure switch with diaphragm and valve means

A pressure regulator comprising a regulated pressure chamber and first and second conduits leading to the regulated pressure chamber. The first and second conduits are adapted to communicate with fluid at first and second pressures, respectively. A first valve controls fluid flow between the first conduit and the regulated pressure chamber, and a second valve controls fluid flow between the second conduit and the regulated pressure chamber. The valves are controlled so that the pressure in the regulated pressure chamber can also be controlled. The first valve is subject to failure if the pressure drop across the first valve exceeds a predetermined magnitude, and a pre-regulator controls the pressure in the first conduit to maintain the pressure drop across the first valve no greater than about said first magnitude.

Servo regulator

A dispenser for flowable material comprising a pump, a dispensing head coupled to the outlet of the pump, a control valve for controlling pump operation, and a manually operable valve carried by the dispensing head for controlling the control valve. The pump includes a rolling diaphragm which is moved on the discharge stroke by fluid under pressure supplied from the control valve and is moved on the intake stroke by a spring. None of the controls for the dispenser are electrical.

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Los Angeles, CA, United States of America

Ezra Dale Hartley