Method of making a compact fluid coupler for thermal inkjet prin

Details Method of making a compact fluid coupler for thermal inkjet prin Method of making a compact fluid coupler for thermal inkjet prin

1992-03-18

1995-11-07

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264255, 264259, 264274, 264275, B29C 4514, B29C 4516, B29C 7072

Patent

active

054645786

ABSTRACT:
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.

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Hewlett-Packard Journal, vol. 36, No. 5, May, 1985.
Hewlett-Packard Journal, vol. 39, No. 4, Aug., 1988, pp. 1-56.

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