Injection mechanism for molding plastics
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 5, 1983
Grant Date -
N/A
app pub date -
Dec 11, 1980
filing date -
Dec 11, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to an injection mechanism for molding plastics, comprising at least one injection bushing, at least one lower needle valve, which is supplied by the injection bushing with molten plastics and opened by the pressure of the molten plastics during injection, further comprising heating means and cooling means adjacent to the flow path of the plastics, control means for maintaining the plastics at an adjusted temperature, further control means for injecting the molten plastics into at least one mold cavity via a corresponding injection aperture, and for the closing off the mold cavity after finishing the injection, wherein for improving this mechanism, especially for facilitating very small distances between injection openings, only one plunger within a heated distributor block is provided, which actuates several needle valves, situated at different locations within the distributor block, for supplying the molten plastics to the mold cavity via one single injection bushing, an injection nozzle and several lower injection openings.
First Claim
Family
International Classification(s)
- Non-US Classification not provided for expired patents
Cited Art Landscape
Patent Citation Ranking
- Citation Ranking not provided for expired patents
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