Method of making a plastic cap
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 10, 1987
Grant Date -
N/A
app pub date -
Feb 24, 1983
filing date -
Jul 8, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A plastic cap is made by introducing an upper plunger formed with a thread groove and a lower plunger into the cavity of a die, while compressing a molten plastic stock between the upper and lower plungers, with the upper plunger sliding along the inner peripheral surface of a holding pad which is held in contact with the upper surface of the die, whereby the skirt portion of the cap is formed by the material of the plastic stock flowing out from between the first and second plungers into between the first plunger and the inner peripheral surface of the die cavity.
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