Hewlett-Packard Company

George F Nasworthy

David W Swanson

James E Clark

James G Salter

Iulius Lucaci

Charles W Dodge

Heinz H Waschhauser

A method for joining two materials together to form a compact leak-resistant seal, particularly suited for use in thermal inkjet print cartridge ink reservoirs. The seal employs a shrink fit to clamp the two materials together. The method includes the steps of forming the first material into a desired first shot structure, placing the first shot structure in a second shot mold, and injecting the second material into the mold under adequate pressure and at an appropriate temperature. The second material has a high degree of mold shrinkage. Upon cooling, the second material shrinks tightly onto the first shot structure to form a molded joint which keeps air out and ink in when wetted and during normal shipping, storage, and operating conditions.

Compact fluid coupler for thermal inkjet print cartridge ink reservoir

Combined ink-jet copier, printer, scanner

Method of making a compact fluid coupler for thermal inkjet print

Growing community of inventors

Leucadia, CA, United States of America

George F Nasworthy