Edgar P Lougheed

US Patent:

6644348, Nov 11, 2003

Filed:

Nov 28, 2001

Appl. No.:

09/996653

Inventors:

Steven D. Possanza - Penfield NY
Angela H. R. Jones - Rochester NY
Brian J. Connolly - Rochester NY
Edgar P. Lougheed - Byron NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

F16K 1120

US Classification:

137597, 251 636

Abstract:

A multiport valve is taught for regulating flow of liquid therethrough originating from at least two sources. The valve includes a three cylindrical valve chambers each having a piston residing therein such that through actuation of the pistons flow through each valve chamber can be permitted or stopped independently. There is an inlet port that tangentially intercepts the first cylindrical valve chamber and there is an outlet port that tangentially intercepts an intermediate cylindrical valve chamber. The design of the three valve chambers and the inlet and outlet ports to the valve chambers effectively eliminates any bubble traps in the valve and allows bubbles to be swept from the valve chambers.

US Patent:

51086115, Apr 28, 1992

Filed:

Aug 16, 1991

Appl. No.:

7/745669

Inventors:

Stephen P. Chen - Webster NY
Edgar P. Lougheed - Byron NY
Carl B. Richenberg - Batavia NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 732

US Classification:

210637

Abstract:

A method of preparing a coupler dispersion in gelatin by separating the auxiliary coupler solvent using a hydrophobic microporous membrane and contacting the opposite surface of the membrane with a coupler solvent.

US Patent:

52983897, Mar 29, 1994

Filed:

Sep 29, 1992

Appl. No.:

7/952936

Inventors:

Steven D. Possanza - Penfield NY
Donald E. Eaton - Walworth NY
Lawrence D. Meston - Rush NY
Edgar P. Lougheed - Byron NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 1015

US Classification:

430569

Abstract:

The present invention is a method to add dry gelatin to a photographic emulsion in either a liquid or a solid form. The dry gelatin is added by entraining the dry gelatin in air to form a gaseous mixture of dry gelatin in air and directing this mixture into the solid or liquid photographic emulsion. An air eductor is used to deliver the dry gelatin. When adding dry gelatin to a solution, the rate is determined by the solution viscosity and volume. When adding the dry gelatin to a solid emulsion, the dry gelatin rate is not as critical but uniform addition is still needed to interdisperse the dry gel with the emulsion pellets.

US Patent:

50249290, Jun 18, 1991

Filed:

Apr 30, 1990

Appl. No.:

7/516955

Inventors:

Edgar P. Lougheed - Byron NY
Carl B. Richenberg - Batavia NY
Stephen P. Chen - Webster NY

Assignee:

Eastman Kodak Company - Rochester NY

International Classification:

G03C 732

US Classification:

430546

Abstract:

A method of preparing a coupler dispersion in gelatin by separating the auxiliary coupler solvent using a hydrophilic membrane having a pure size less than 175 Angstroms.