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Parker Research Corporation

Parker Micro-Tubes, Inc.

William J Parker

Earl R Parker

A movable, e.g., wheeled, container, system, such as an article of luggage, cooler or other wheeled container, can include a container body with an openable lid. The system can include one or more wheels secured to the container body and a handle that extends from the container body. The system can include one or more strap mechanisms attached to the interior of the container body. Each strap mechanism can provide a retractable strap to extend from the container body. Each strap can be extended over an item to be secured to an exterior surface of the container body. An extended end of each strap can be secured to a fastening device located on an exterior surface of the container body. The wheels may be driven by motors that can be controlled by a user. A movable container system can be releasably attached to one or more other movable container systems.

Movable container system

An apparatus and method for the treatment of a patient having a tumor is disclosed. An X-ray generating source is positionable at a location in close proximity to the tumor. The X-ray generating source is operable at a voltage level in the range of approximately 10-60 KeV, thereby enhancing absorption of the generated X-rays by the tumor and minimizing the side effects of radiation therapy on the patient's normal tissue.

X-ray micro-tube and method of use in radiation oncology

A method and apparatus for reducing the fatigue crack growth rate of cracks in the aluminum alloy fuselage skin of aircraft structures. A fatigue crack is identified, the crack having a tip defining the direction of crack propagation. Temperature differentials are produced between a narrow strip of the skin and portions of the skin adjacent to this narrow strip. The narrow strip extends from the crack tip to a predetermined distance forward the crack tip. The temperature differentials produced between the narrow strip and adjacent unheated portions of the aircraft skin are sufficiently high so that the expansion due to heating causes plastic flow to occur in the heated strip. The plastic flow results in a residual tensile stress which acts in the direction of crack propagation when the system is returned to a normal service temperature. This residual tensile stress is of a sufficient magnitude to effectively retard the crack growth rate.

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West Hills, CA, United States of America

William J Parker