Title:
SYNTHETIC RESIN CAP, METHOD AND APPARATUS FOR MANUFACTURING THE SAME
Document Type and Number:
Japanese Patent JP2001328653
Kind Code:
A
Abstract:
To provide a synthetic resin cap excellent in sealability, a method and an apparatus for manufacturing the cap.
The synthetic resin cap includes a top plate 32 and a cylinder 33 hanging from its periphery. An annular inner seal 34 is formed to protrude on an internal top surface of the top plate 32, and a thin part 35 which is thinner in thickness than other parts is formed in the vicinity of a base end of the inner seal 34.
Inventors:
YAMADA KAZUYUKI
Application Number:
JP2000147041A
Publication Date:
November 27, 2001
Filing Date:
May 18, 2000
Export Citation:
Assignee:
SHIBAZAKI SEISAKUSHO LTD
International Classes:
B29C33/44; B29C45/44; B65D41/04; B65D41/28; B65D41/34; (IPC1-7): B65D41/04; B29C33/44; B29C45/44; B65D41/28
Domestic Patent References:
| JPS60500286A | 1985-03-07 | |||
| JPH11278511A | 1999-10-12 | |||
| JPS55101749U | 1980-07-15 | |||
| JPH09156656A | 1997-06-17 |
Attorney, Agent or Firm:
Masatake Shiga (6 people outside)