John A Abrams

US Patent:

54357098, Jul 25, 1995

Filed:

Jul 7, 1993

Appl. No.:

8/088124

Inventors:

Charles O. Grigsby - Hamilton IL
John A. Abrams - Chesterfield MO

Assignee:

Gemini Braids, Inc. - St. Louis MO

International Classification:

B29C 5314
B29C 4704
B29C 3356

US Classification:

425103

Abstract:

Apparatus for preparing first and second chemical compounds to be mixed for reaction, the first and second chemical compounds being extruded in respective first and second bands of semi-solid material and wherein one of the bands may be coated with a protective coating to prevent a chemical reaction between the epoxy resin and the curing agent until the epoxy resin and curing agent are kneaded together, the apparatus including a twisting section including a pair of endless belts which have portions overlying one another, the belts being oriented so that their axes extend at complementary angles relative to the direction of travel of an infeed conveyor belt which advances the juxtaposed bands of material through the twisting section which twists together the bands, producing an elongated, generally cylindrical product with first and second bands being wrapped helically upon one another. The first and second bands of material can be prepared in predetermined lengths and individually on the infeed conveyor belt or can be extruded continuously onto the infeed conveyor belt, twisted together and cut to size at the output of the twisting section.