Arthur G Harper

US Patent:

20070096409, May 3, 2007

Filed:

Oct 27, 2005

Appl. No.:

11/259684

Inventors:

Arthur Harper - Orange CA, US

International Classification:

A63C 17/02

US Classification:

280011221

Abstract:

A steering assembly for an in-line roller skate having at least two wheels and at least one horizontally rotatable wheel mechanism for steering. Attached under the sole of a boot, are two planar members that coincide to the general shape and size of the sole. The members are flatwise horizontally, centrally rotatable to each other. A linkage mechanism allows horizontal rotational motion to be transmitted from the sole fixed drive planar member, to a front rotatable wheel mechanism mounted on the underside of the base planar member. Characteristic of ice skates, a level oriented rotational motion of the foot steers the direction of the skate. The horizontal boot-to-wheel rotary motion, provides solid, variable steering for controlled turns, while all wheels are in contact with the riding surface. When the skate is not in contact with the riding surface, a flexible alignment mechanism is then free to restore the steering assembly to the straight line motion of the skate. An optional locking mechanism can be employed for conventional in-line skating.

US Patent:

20230013388, Jan 19, 2023

Filed:

Jul 19, 2021

Appl. No.:

17/300487

Inventors:

Arthur Benny Harper - Westminster CA, US

International Classification:

F03G 3/00

Abstract:

A nonpropellant inertial device to propel structures on and off earth is disclosed. Secured on a rigid planar base are electrically powered motors for two crankshafts. Pair of parallel linkages are connected between the crankshafts and the sides of a freely rotatable cylintrical weight. The crankshafts rotate differentially to create straight-line reciprocating motion to the linkages. The linkages are design to only pull the cylindrical weight from one side then the other causing the weight to rotate back and forth in reciprocal motion, traverse to the straight-line motion of the linkages. High frequency impulses alternate from the sides of the cylintrical weight with each impulse being a simultaneous action-reaction event. However, only part of the angular action to the weight, directly opposes the straight-line reaction to the crankshafts. Therefore, a net amount of reaction remains to impart unidirectional inertial propulsion to the mover. Two similar cylintrical weight systems are generally used for cancelling out lateral vibrations to the mover.