Other

Marquip, LLC

Specialty Systems Advanced Machinery, Inc.

Langreck, Gerald K.

Gerald K Langreck

Vernon C Wickman

Richard H Thomas

Patrick C St Germain

Ryan J Carlson

A high acceleration rotary actuator motor assembly is provided comprising a plurality of phase motor elements provided in tandem on a shaft, each phase element including a rotor carrying magnets which alternate exposed poles, the rotor being connected to the shaft and surrounded by a stator formed of a plurality of interconnected segmented stator elements having a contiguous winding to form four magnetic poles, the stator being in electrical communication with a phase electric drive unit, wherein each of the poles exert a magnetic force upon the magnets carried by the rotor when the poles are electrically charged by the phase electric drive unit. The rotors and magnets of each phase motor element are offset about the shaft from one another. In addition, the phase motor elements are electrically isolated from one another.

High acceleration rotary actuator

A web tensioning device utilizes a dancer arm which can be positioned by a controlled servo motor. In a preferred embodiment, the controller for the servo motor receives an input signal based on the acceleration (positive or negative) of the dancer arm and implements a torque component necessary to maintain predetermined web tension, for example, an applied torque component that changes the position of the dancer arm. The controller may also receive additional input signals indicative of the acceleration of the web itself.

Web tensioning device with plural control inputs

A multiphase induction motor having concentrated phase windings utilizes adaptive torque control based on detection of asymmetry in the magnetic field density and corrective adjustment to restore symmetry based on voltage differences in the torque phase motor windings.

Adaptive control of a multiphase induction motor having concentrated

A gear pump including a body, a port plate, a pair of gerotor-type rotors, one rotor being connected to a shaft, and a retaining assembly operative on the port plate to rotatably couple it to the body. The retaining assembly permits adjustment of axially oriented inlet and outlet ports disposed in the port plate to vary fluid flow from the pump. Both manually and automatically adjustable retaining assemblies are disclosed.

Axially ported variable volume gerotor pump technology

A lockdown apparatus for releasably locking a coaxially mounted series of tool heads in a slitter-scorer machine includes an elongate locking member movable into simultaneous engagement with locking surfaces on each of the tool heads and a flexible membrane interposed directly between the locking member and the locking surfaces which membrane is flexed into and out of direct locking engagement with the locking surfaces by movement of the locking member. The flexible membrane may be used with either a rotary or reciprocal locking member and, in either case, the flexible membrane may be secured against movement with respect to the tool heads when they are locked such that unavoidable longitudinal movement of the locking member will not disrupt the critically accurate locked positions of the tool heads. The rotary lockdown apparatus utilizes an elongate cam of the type known in the prior art and, in the reciprocal lockdown apparatus, the locking bar comprises the armature of a solenoid.

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Phillips, WI, United States of America

Gerald K Langreck