Tenna Corporation

Tenna Power Corporation

Thomas A Young

Laszlo N Repay

Ronald J Freimark

Andrew A Amberik

Jay W Gustin

Baseball bat smoking pipe

An angularly adjustable vehicle mirror with vibration damping. A casing, adapted to be secured in a mirror housing, supports a mirror back member for pivoting by a mechanism within the casing. Two rigid projections from the casing have surfaces extending generally in the direction the back member moves when it pivots relative to the casing. Vibration dampers are carried by the mirror back member remote from the pivot point of the mirror. Each damper extends rearwardly of the mirror into contact with the surface of a projection to inhibit vibration of the mirror. The vibration damping members are rigid in the direction the mirror moves but are flexible or articulated for movement transversely of the direction of mirror movement and are biased against the surfaces in slidable, frictional, engagement.

Angularly adjustable vehicle mirror

A multiphase to single phase electrical energy converter wherein the frequency is converted from a relatively high frequency, in order of 1,000 hertz, to a relatively low frequency, as for example, normal household frequency of 60 hertz. A three-phase alternator is driven by an internal combustion engine, the output of the alternator being fed to a full-wave bridge circuit and finally to an inverter. The output of the bridge circuit is acted on by a resolver. The resolver is utilized to control the delivery of energy from the alternator to the inverter to provide an average current or power to the inverter which increases and decreases in a unipolar sinusoidal form at a frequency which is twice the desired output frequency. The inverter is utilized to invert every other cycle of the output from the resolver. Thus, the power from the inverter will take the form of an alternating sinusoidal waveform at 60 hertz. An arc suppressor circuit is provided to protect the resolver and inverter from arcing during switching for non-resistive loads. A current detector circuit senses the inductive ring current at the load and protects the alternator from application of improper loads and a thermal breaker protects the alternator from load faults.

Multiphase to single phase and frequency converter system

A multiphase to single phase electrical energy converter wherein the frequency is converted from a relatively high frequency, in the order of 1,000 hertz, to a relatively low frequency, as for example, normal household frequency of 60 hertz. A three-phase alternator is driven by an internal combustion engine and in one form of the invention the output of the alternator is fed to a controllable, full-wave bridge circuit and finally to an inverter. The controllable bridge circuit is controlled by a resolver, the resolver, alternator rotor and internal combustion engine all operating at the same rotary speed. In the one form the resolver is utilized to control the conduction of a plurality of controlled semiconductor devices interconnected between the output windings of the alternator and the invertor to control the delivery of energy from the alternator to the inverter. In another form the controlled semiconductor devices are replaced by a modified resolver. In accomplishing the control, the controlled rectifiers or modified resolver are rendered conductive to provide an average current or power to the inverter which increases and decreases in a unipolar sinusoidal form at a frequency which is twice the desired output frequency. The bridge circuit then provides an output to an inverter device which is rotating at one-half the speed of the resolver, the inverter being utilized to invert every other cycle of the output from the resolver. Thus, the power from the inverter will take the form of an alternating sinusoid waveform insofar as the power output is concerned at 60 hertz.

A mirror assembly for a motor vehicle, in which a mirror backplate is angularly adjustable by an electric motor and drive mechanism. The mirror backplate is pivotably connected to a motor drive casing with a secure yet releasable interconnection that includes a central stud on the backplate, locating structure for the stud on the casing, and a coupling member for releasably securing the stud to the casing. The central stud and two extending screws on the backplate are universally pivotable and integrally formed with the backplate. The screws are driven axially relative to the casing by motor driven rotated nuts within the casing to pivot the backplate and a supported mirror about the central stud.

Adjustable mirror support

An assembly, specifically a mirror assembly for a motor vehicle, in part angularly adjustable by an electric motor and drive mechanism. A fixed motor drives a worm that is angularly movable through a flexible coupling into selective engagement with one of two nuts to drive adjusting screws that cause a mirror element to pivot about one of two mutually perpendicular axes. The screws and pivot structure for the mirror are integrally formed as part of a mirror supporting plate. The nuts are yieldably coupled to the threads of the adjusting screws to permit slippage between the two when forces exceed the wormed driving force. Operating noise is reduce by a vibration-damping motor mounting and by structure limiting worm engagement with the nuts. Projections are carried by the mirror supporting plate resiliently biased against a fixed support to reduce vibration.

Electrically adjustable vehicle accessory

An assembly, specifically a mirror assembly for a motor vehicle, in part angularly adjustable by an electric motor and drive mechanism. A fixed motor drives a worm that is angularly movable through a flexible coupling into selective engagement with one of two nuts to drive adjusting screws that cause a mirror element to pivot about one of two mutually perpendicular axes. The screws and pivot structure for the mirror are integrally formed as part of a mirror supporting plate. The nuts are yieldably coupled to the threads of the adjusting screws to permit slippage between the two when forces exceed the wormed driving force. Operating noise is reduce by vibration-damping motor mounting and by structure limiting worm engagement with the nuts. Projections are carried by the mirror supporting plate resiliently biased against a fixed support to reduce vibration.

An assembly, specifically a mirror assembly for a motor vehicle, in part angularly adjustable by an electric motor and drive mechanism. A fixed motor drives a worm that is angularly movable through a flexible coupling into selective engagement with one of two nuts to drive adjusting screws that cause a mirror element to pivot about one of two mutually perpendicular axes. The screws and pivot structure for the mirror are integrally formed as part of a mirror supporting plate. The nuts are yieldably coupled to the threads of the adjusting screws to permit slippage between the two when forces exceed the wormed driving force. Operating noise is reduced by a vibration-damping motor mounting and by structure limiting worm engagement with the nuts. Projections are carried by the mirror supporting plate resiliently biased against a fixed support to reduce vibration.

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Burton, OH, United States of America

Thomas A Young