Plastic article or earthenware shaping or treating: apparatus – Means providing a shaping orifice
Patent
1990-12-21
1999-09-21
Chiesa, Richard L.
Plastic article or earthenware shaping or treating: apparatus
Means providing a shaping orifice
264241, B29C 4714, B29C 6500
Patent
active
059551194
ABSTRACT:
A degradation resistant nozzle for a screening, extrusion or similar processes has a tip surface formed by one or more rods of a material having an increased hardness relative to the body portion of the nozzle. The rods are preferably of circular cross-section and formed of tungsten carbide. The rods are removably attached in preferably circular grooves in the tip of the nozzle body. The removability of the rods facilitates reworking of the nozzle when wear occurs since new rods can quickly and inexpensively be substituted. The degradation resistant nozzle also decreases wear and scoring of stencils used in screening processes and thus increases the useful life thereof.
REFERENCES:
patent: 3384931 (1968-05-01), Cochran et al.
patent: 3694120 (1972-09-01), Walton
patent: 4066821 (1978-01-01), Cook et al.
patent: 4245273 (1981-01-01), Feinberg et al.
patent: 4411614 (1983-10-01), Feathers
patent: 4522776 (1985-06-01), Ramamurthy
patent: 4544341 (1985-10-01), Gnadig et al.
patent: 4698192 (1987-10-01), Kuze et al.
patent: 4808435 (1989-02-01), Cropp et al.
patent: 4843692 (1989-07-01), Hemmat
patent: 4963309 (1990-10-01), Gohlisch et al.
"Screen Printing with Non-Line Contact"; IBM Technical Disclosure Bulletin; Brilla et al.; vol. 25, No. 6; Nov. 1982.
Andris Gerald Stanley
Darves-Bornoz Yves
Chiesa Richard L.
International Business Machines - Corporation
Soucar Steven J.
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