Dover Corporation

Robotics Research Corporation

David A Damico

Paul B Anderson

Mark D Dalhart

James P Karlen

Jack M Thompson, Jr

Keith A Kowalski

Paul H Eismann

John Bockhold

A vacuum assisted, vapor recovery fuel nozzle comprising a nozzle body and a spout mounted thereon. The spout comprises an inner tube and an outer tube. The inner tube and passage means in the body provide a fuel passage. The inner and outer tubes define a vapor return passage in the spout. The inner end of the outer tube is provided with a radial flange, which is clamped, by a breakaway nut, on the nozzle body to mount the spout thereon. The nozzle is provided with an automatic shut off mechanism, which includes a venturi valve for generating a negative pressure. In the absence of an overfill condition, this negative pressure is vented to atmosphere through a vent tube disposed in the vapor return passage. A normally closed vapor return valve, mounted on the nozzle body, is opened in response to the nozzle's flow control valve, so that vapors will be drawn into the entrance of the vapor return passage at the outer end of the spout. The spout is formed by telescoping the inner tube into a ferrule and the ferrule into the outer tube to provide a reenforced outer end for the spout. The nozzle body is compositely formed by a body member, a vapor cap and housing means for a main valve trip mechanism. The coaxial hose is attached to the hand grip of the nozzle at a downward angle. An optional, vestigial shroud is provided to prevent escape of vapors during delivery of fuel.

Vapor recovery fuel nozzles

A vacuum assisted, vapor recovery fuel nozzle comprising a nozzle body and a spout mounted thereon. The spout comprises an inner tube and an outer tube. The inner tube and a passage in the body provide a fuel passage. The inner and outer tubes define a vapor return passage in the spout. The inner end of the outer tube is provided with a radial flange, which is clamped, by a breakaway nut, on the nozzle body to mount the spout thereon. The nozzle is provided with an automatic shut off mechanism, which includes a venturi valve for generating a negative pressure. In the absence of an overfill condition, this negative pressure is vented to atmosphere through a vent tube disposed in the vapor return passage. A normally closed vapor return valve, mounted on the nozzle body, is opened in response to the nozzle's flow control valve, so that vapors will be drawn into the entrance of the vapor return passage at the outer end of the spout. The spout is formed by telescoping the inner tube into a ferrule and the ferrule into the outer tube to provide a reenforced outer end for the spout. The nozzle body is compositely formed by a body member, a vapor cap and a housing for a main valve trip mechanism. The coaxial hose is attached to the hand grip of the nozzle at a downward angle. An optional, vestigial shroud is provided to prevent escape of vapors during delivery of fuel.

A digitally controlled industrial robot comprises a set of unitized and integrated joint drive modules which can be assembled in series to form an arm. The joints are of two basic types, pitch joints and roll joints, with the roll joints providing rotation about the longitudinal axis of the manipulator and the pitch joints providing rotation about axes which are substantially perpendicular to and offset from the roll joint axes. Any number of joints may be assembled to comprise the manipulator, permitting the configuration of a kinematically redundant manipulator. A servocontrol derives feedback from sensing the motive force on a driven member and compensates the drive signal accordingly. More particularly, the torque exerted on each roll and pitch joint is measured and used for feedback to provide stability and optimum bandwidth for the servomechanism.

Industrial robot with servo

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Lebanon, OH, United States of America

David A Damico