Richard L Jahnke

US Patent:

49631594, Oct 16, 1990

Filed:

Jul 11, 1989

Appl. No.:

7/377990

Inventors:

Kenneth W. Narducy - Sunnyvale CA
Richard L. Jahnke - Villa Park IL
Samuel Loshaek - Chicago IL

Assignee:

Schering Corporation - Kenilworth NJ

International Classification:

D06P 352

US Classification:

8507

Abstract:

There is disclosed a method for making colored hydrophilic contact lenses. A contact lens constructed of hydrophilic polymer that is substantially devoid of the functional groups --COOH, --OH, --NH--R, wherein R is hydrogen or C. sub. 1 to C. sub. 8 alkyl, --NCO and epoxy is provided. At least a portion of the surface of the lens is coated with a color coat comprising at least one pigment, binding polymer having functional groups selected from at least one of --COOH, --OH, and --NH--R, wherein R is hydrogen or C. sub. 1 to C. sub. 8 alkyl, and an additional compound having at least two groups per molecule of --NCO. The coated lens is subjected to conditions which cause the color coat to adhere to the lens.

US Patent:

45576254, Dec 10, 1985

Filed:

Jun 29, 1983

Appl. No.:

6/509198

Inventors:

Richard P. Jahnke - Waukesha WI
James C. Keuper - Brookfield WI
Wayne E. Hunnicutt - Big Bend WI

International Classification:

E02D 2912

US Classification:

404 25

Abstract:

The sealing assembly includes a relatively soft rubber, tubular sleeve having an axial length sufficient to span the joint between hollow members, such as the corbel joint between a manhole frame and a manhole casing, and a sealing portion in each of the opposite ends. The outer surface of each sealing portion is compressed radially outwardly in sealing engagement with the interior walls of the manhole frame and the manhole casing by a generally circular hoop which fits into a groove provided in the inside surface of the sleeve. Each hoop has circumferentially movable, end portions and a radially inwardly extending bracket mounted on each end portion at circumferentially spaced locations. These brackets are adjustably pulled toward each other, to increase the circumference of the hoop, by tightening a nut threaded onto the outer end of a bolt connecting the brackets together. The distance between the outer ends of the brackets can be adjusted, to maintain the brackets substantially parallel during tightening, by turning a nut threaded onto the outer end of a threaded member spaced radially inwardly from the tightening bolt and connected between the brackets.

US Patent:

48570729, Aug 15, 1989

Filed:

Nov 24, 1987

Appl. No.:

7/124724

Inventors:

Kenneth W. Narducy - Cupertino CA
Richard L. Jahnke - Villa Park IL
Samuel Loshaek - Chicago IL

Assignee:

Schering Corporation - Kenilworth NJ

International Classification:

D06P 352

US Classification:

8507

Abstract:

There is disclosed a method for making colored hydrophilic contact lenses. A contact lens constructed of hydrophilic polymer that is substantially devoid of the functional groups --COOH, --OH, --NH--R, wherein R is hydrogen or C. sub. 1 to C. sub. 8 alkyl, --NCO and epoxy is provided. At least a portion of the surface of the lens is coated with a color coat comprising at least one pigment, binding polymer having functional groups selected from at least one of --COOH, --OH, and --NH--R, wherein R is hydrogen or C. sub. 1 to C. sub. 8 alkyl, and an additional compound having at least two groups per molecule of --NCO. The coated lens is subjected to conditions which cause the color coat to adhere to the lens.