Other

Purdue Research Foundation

Industrial Technology Research Institute

International Technology Research Institute

David Waters

Thomas Chan

Ching-jer Chang

Fen-Lan Lin

Chen-Tao Lee

Curtis L Ashendel

Robert L Geahlen

Jih-Dar Tsai

Brian L Neal

Gary W Neal

Ching Te Chang

Ching Tien Chang

Barbara Waters, Legal Representative

Cecil Neal

The limb elevating accessory can attach itself onto an existing wheelchair and provide a means to support and elevate a limb of an end user seated therein. The limb elevating accessory includes a base support that attaches onto the frame of the wheelchair, and also attaches to an upper support. The upper support has a plurality of holes from which a stirrup or support attaches to support an arm or a leg thereon. The base support also includes an adjustable hook that hooks at a second location to the frame of the wheelchair in order to further stabilize the accessory upon the wheelchair.

Limb elevating accessory

A pruning vehicle having characteristics specifically utilizable in an orchard having rows of trees opposite each other. The vehicle is equipped with two platforms side by side which can be adjustably located vertically and horizontally in a plane perpendicular to the direction of the vehicle's motion. Each platform is controllable by an operator standing upon the platform through foot pedals incorporated thereon. Platforms are elevated above the vehicle by lifting structures designed to keep the platforms level to the ground at all times. The platforms are connected to a frame of the vehicle at a low slung central portion of the frame for added stability. Wheels of the vehicle are of a thin disc shape. Each wheel can slice through soft surfaces such as mud to attain a firm foundation for the pruning vehicle. Fins and teeth on the wheels provide added traction. Mud deflectors on the wheels prohibit mud from climbing up too high onto or bogging down the pruning vehicle. The wheels are powered by hydraulic motors which are powered by an engine mounted upon the frame of the vehicle. The engine also powers hydraulic rams which steer all four wheels of the vehicle and adjust the locations of the platforms. The motion and steering of the pruning vehicle is controllable from one of the platforms, eliminating the need for an additional operator on the vehicle to drive the pruning vehicle. One form of the invention links vertical motion of the platforms together while preserving independent horizontal motion of the platforms. In this embodiment the platforms are connected by a walkway allowing operators to pass between the platforms on opposite sides of the pruning vehicle without climbing off of or lowering the platforms.

Pruning system

Novel polythiophene compounds useful as anti-tumor agents are described. Preferred compounds of the formula: ##STR1## wherein n is 0-2 and R.sub.2 and R.sub.3 are optionally substituted 2-thienyl or 3-thienyl have been found to exhibit selective cytotoxic activity against transformed human cells. Pharmaceutical compositions containing the described polythiophene compounds are expected to exhibit good chemotherapeutic activity against slow growing tumors based on tumor cell line assays. A method for treating patients having tumors utilizing the disclosed polythiophene compounds is also described.

Polythiophene anti-tumor agents

Growing community of inventors

Yuba City, CA, United States of America

David Waters