Charles Russell Rogers
General Contractor at Sauls Rd, Raleigh, NC

4013038, Mar 22, 1977

Jul 21, 1975

5/597323

Charles H. Rogers - Raleigh NC
Kevin J. Sullivan - Raleigh NC
Miles E. Vance - Raleigh NC

Corning Glass Works - Corning NY

B05C 500

118 5

Apparatus for controlling the temperature of an open liquid body when actual measurement of that temperature is not possible. A thermal analog of the liquid body, which is exposed to the same heating or cooling source as the liquid body, is incorporated into a sensor which provides controlling feedback to the heating or cooling source. The sensor, which is disposed in the atmosphere which surrounds or flows by the liquid body, includes a dry element and a wet wick, body of which are in thermal contact with a temperature sensing element. The dry element senses the temperature of the atmosphere and the wet wick has a cooling effect on the sensing element that is related to the rate of evaporation of liquid from the body. This sensor is advantageously employed in a system for regulating the temperature of a reagent film on a microscope slide.

3967110, Jun 29, 1976

Jan 23, 1975

5/543516

Charles H. Rogers - Raleigh NC
Burton H. Sage - Raleigh NC

Corning Glass Works - Corning NY

G01J 120

250201

In a system which automatically analyzes laboratory slides, the adjustable objective lens is automatically focused. A beam splitter splits light from the slide into two parts. One slide image is projected to an actual image plane where it is converted into electrical signals representing the optical characteristics of the slide. The other slide image is projected to a parfocal image plane at which two light sensing devices for the focusing system are positioned. One light sensing device is in front of the parfocal image plane and the other is behind the parfocal image plane. These light sensing devices produce electrical signals representing the position of the actual image plane with respect to the desired image plane. The electric signals are differentiated and then applied to a comparator which supplies pulses to a stepping motor which moves the objective lens. The coupling between the stepping motor and the objective lens includes an eccentric member which translates the objective lens with no sliding friction.

3982895, Sep 28, 1976

Jun 18, 1974

5/480506

Lynn G. Amos - Raleigh NC
James W. Bacus - Hinsdale IL
Robert C. Beaty - Raleigh NC
Charles H. Rogers - Raleigh NC

Corning Glass Works - Corning NY

G01N 3316

23230B

In the preparation of blood films for microscopic examination a slide spins in a centrifuge for a time which is a function of the red blood cell concentration of the blood. A drive circuit controls the time of spinning of a slide centrifuge. A variable control for the centrifuge motor includes a manual adjustment which is adjustable across a scale labeled as a function of the percent hematocrit of the blood.

4043292, Aug 23, 1977

Jul 21, 1975

5/597442

Charles H. Rogers - Raleigh NC
Kevin J. Sullivan - Raleigh NC

Corning Glass Works - Corning NY

B05C 500, B05C 1500

118 5

Method and apparatus for staining biological specimens by forming a film of staining reagents on the surface of the specimen containing slide. Heating means raises the temperature of the staining reagents on the slide. The temperature of the reagent film is determined, and a feedback signal to the heating means accurately maintains the temperature of the film within a predetermined range.

3947121, Mar 30, 1976

Jul 30, 1973

5/383832

Douglas A. Cotter - Raleigh NC
Charles H. Rogers - Raleigh NC

Corning Glass Works - Corning NY

G02B 2134

356 38

A device embodying a substrate having at least one longitudinal groove formed in a flat surface thereof for accommodating microstructures for microscopic examination.