Plastic article or earthenware shaping or treating: apparatus – Female mold and charger to supply fluent stock under... – With means between charger and mold to cut off flow of...
Reexamination Certificate
2006-10-24
2006-10-24
Heitbrink, Tim (Department: 1722)
Plastic article or earthenware shaping or treating: apparatus
Female mold and charger to supply fluent stock under...
With means between charger and mold to cut off flow of...
C425S572000
Reexamination Certificate
active
07125246
ABSTRACT:
A hot runner system for injecting plastics material from a plasticizer unit into an injection mold for molding very small plastic devices, includes a hot runner manifold having an inlet for receiving melted plastics material from the plasticizer unit and a heater for maintaining the manifold at an elevated temperature. A check valve mounted in the manifold allows one way flow of the plastic in the feed conduit. This valve preferably comprises a ball type valve. A metering apparatus includes a cylinder forming an elongate metering chamber and a ram movable therein. An inner end of the chamber opens into one side of the feed conduit downstream of the check valve and the longitudinal axis of the chamber is perpendicular to the longitudinal axis of the conduit where they meet. At least one injector is connected to a downstream end of the feed conduit and it is spaced from the metering apparatus.
REFERENCES:
patent: 2478013 (1949-08-01), Roddy
patent: 2890491 (1959-06-01), Hendry
patent: 3417433 (1968-12-01), Teraoka
patent: 4330258 (1982-05-01), Gellert
patent: 4717324 (1988-01-01), Schad et al.
patent: 4863369 (1989-09-01), Schad et al.
patent: 4909724 (1990-03-01), Sonoda et al.
patent: 5135701 (1992-08-01), Farrell
patent: 5223275 (1993-06-01), Gellert
patent: 5246660 (1993-09-01), Tsutsumi
patent: 5260012 (1993-11-01), Arnott
patent: 5389331 (1995-02-01), Uehara et al.
patent: 5424020 (1995-06-01), Hara et al.
patent: 5792493 (1998-08-01), Gellert et al.
patent: 6235229 (2001-05-01), Beck et al.
patent: 6403010 (2002-06-01), Ganz et al.
patent: 6403610 (2002-06-01), Malleron et al.
patent: 6464909 (2002-10-01), Van Geel Huip et al.
patent: 2002/0182285 (2002-12-01), Godwin et al.
patent: A-0 955 146 (1999-11-01), None
patent: 1339308 (1963-10-01), None
patent: 01182017 (1989-07-01), None
patent: 06055584 (1994-03-01), None
patent: 07040400 (1995-02-01), None
patent: 2000141439 (2000-05-01), None
patent: WO97/07960 (1997-03-01), None
“Medical Hotrunners” Brochure by Mold Hotrunner Solutions, Jul. 2002.
“Packaging Hotrunners” Brochure by Mold Hotrunners Solutions, Jul. 2002.
“Automotive Hotrunners” Brochure by Mold Hotrunner Solutions, Jul. 2002.
“The Troubleshooter—Part 58—Sizing Runners” published in Injection Molding Magazine in Feb. 2003, pp. 44, 46.
Mini Hot Runner Systems Explore New Applications published in Injection Molding in Oct. 2002, pp. 62, 64.
“Micromolding Sizing Up The Challenges” published in Plastics Technology in Apr. 2001, by Mikell Knights, pp. 1 to 6 of Online Article.
“A New Machine Segregates Injection and Extrusion” published in injection Molding, in May 2003, pp. 96, 98.
Lang, A., “Heisskanal Technik Heute Systeme, Entwicklungen, Trends”, Kunststoffe, Hanser, vol. 90, No. 11, Nov. 2000, pp. 80, 82, 84, 86, 88-89.
Ohnuma, S.: “64Fach-Heisskanal Werkzeug Fuer Dichtmanschetten AUS TPE”, Kunststoffe, Hanser, Munchen, DE, vol. 79, No. 11, Nov. 1, 1989, pp. 1123-1124.
“Harmonie AUF Engstem Raum”, Plastverabeiter, Zechner und Huethig Verlag GmbH, vol. 49, No. 3, Mar. 1998, pp. 96-97.
“Kleinste Duese”, Plastverarbeiter, Zechner und Huethig Verlag GmbH, vol. 46, No. 10, Oct. 1, 1995, p. 212.
Hagelstein H et al., “AUF DIE Spitze Getrieben”, Plastverarbeiter, Zechner und Huethig Verlag GmbH, vol. 50, No. 5,May 2000, p. 118-122.
Solan, Jeff, “A New Machine Segregates Injection and Extrusion”, Injection Molding, May 2003, pp. 96,98.
European Search Report (from related pending application EP 1 522 396 A3).
Edwards Angell Palmer & & Dodge LLP
Heitbrink Tim
Mold Hotrunner Solutions Inc.
LandOfFree
Hot runner for molding small plastic articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Hot runner for molding small plastic articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hot runner for molding small plastic articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3658830