Process for the production of an injection nozzle for use in an injection molding device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 19, 1992
Grant Date -
N/A
app pub date -
Feb 28, 1991
filing date -
Mar 1, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A process for the production of an injection nozzle comprising an essentially tubular inner part (16) and at least one essentially wire-type heating element (14, 15) which is embedded entirely inside a solid metal body (12, 13) lying in a close-fitting manner around the inner part in which one or more separate, essentially tubular metal bodies (12, 13) with a heating element (14, 15) embedded therein are formed by placing the heating element and the metal in a molten state in a mold, so that the heating element is completely enclosed by the molten metal, and subsequently allowing the metal to set, following which the body thus formed is removed from the mold and this tubular body or these tubular bodies thus obtained is or are then slid over the tubular inner part up to a certain point. Advantageously, a fully open axially running slit (12', 13') is formed in the wall of the tubular body (12, 13), while the wire-type heating element (14, 15) extends in curved loops running zigzag through the body and extending to the slit.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully