Stephen Joseph Scott

US Patent:

48708291, Oct 3, 1989

Filed:

Jul 11, 1988

Appl. No.:

7/217718

Inventors:

Lucille A. Oullette - Gaithersburg MD
Stephen C. Scott - Frederick MD

International Classification:

F25B 1900

US Classification:

62 511

Abstract:

Biological freezing apparatus for use on unmodified laboratory liquid cryogen storage container including a specimen holder for holding biological specimens to be frozen and a motor for lowering the specimen holder into the interior of the laboratory liquid cryogen storage containers. An electronic circuit controls the motor so that the specimen holder moves into the interior of the laboratory liquid cryogen storage container at a predetermined desired rate. The specimen holder is constructed of a non-thermally conductive material and this plus its configuration along with the movement of the specimen holder downward at a predetermined rate allows freezing of live biological specimens without doing substantial damage to the specimens.

US Patent:

43477003, Sep 7, 1982

Filed:

Feb 21, 1980

Appl. No.:

6/123314

Inventors:

Harold H. Kantner - Evanston IL
Stephen D. Scott - Cheyenne WY

Assignee:

Transcience Associates, Inc. - Evanston IL

International Classification:

F01C 108
F16H 3906

US Classification:

60325

Abstract:

This invention resides in a closed system, with permanently fixed end plates, which permits the pump-motor of the present invention to operate either as a combined pump-motor, or as a pump only, or solely as a motor. Rotators of this invention have parallel axes normal to the end plates which they intersect at fixed coordinates. That makes possible direct drive to or from a rotator shaft extension or the enclosing cylindrical rotator. In the device of this invention, the end-plates are non-rotary, but the cylindrical shell or housing always rotates. The plurality of rotators within the cylinder define a plurality of fluid pressure zones. Some of the rotators have a relatively smooth surface; the others have relatively gear-like surfaces. When the unit operates as a pump, a shaft extension of one of the rotators protrudes through one of the end plates and is coupled with an input power source such as the crank or pedals of a bicycle. When the unit is operated as a motor, a wheel, such as a bicycle wheel, or other motor unit can be attached to the rotary cylinder for propulsion of the vehicle to which the end-plates are affixed.