Claims
- 1. A method for manufacturing a container comprising the steps of:
- covering an intermediate barrel portion having a tubular shape and formed of flexible film on a mandrel that functions as a die core;
- installing the mandrel covered with the intermediate barrel portion to an upper die and a lower die;
- one end of the intermediate barrel portion covering said mandrel being covered with the flexible film formed from the same material as the intermediate barrel portion;
- injecting molten polymer material by insert injection molding means into said upper die and lower die; and
- forming an upper solid portion and a lower solid portion integrally at opposite ends of the intermediate barrel portion.
- 2. A method for manufacturing a container comprising the steps of:
- covering an intermediate barrel portion having a tubular shape and formed of a flexible film on a mandrel that functions as a die core;
- installing the mandrel covered with said intermediate barrel portion to an upper die and a lower die;
- injecting molten polymer material by insert injection molding means into said upper die and lower die; and
- forming an upper solid portion and a lower solid portion integrally at opposite ends of said intermediate barrel portion when said upper solid portion is formed by insert injection molding means; wherein
- the upper solid portion having a hollow cylindrical opening section including a communication aperture for communicating with an inside of the intermediate barrel portion with an external Part of the intermediate barrel portion is integrally formed such that said hollow cylindrical opening section is coaxial with said intermediate barrel portion.
Priority Claims (4)
Number |
Date |
Country |
Kind |
4-92239 |
Dec 1992 |
JPX |
|
5-25007 |
Apr 1993 |
JPX |
|
5-151135 |
May 1993 |
JPX |
|
5-215602 |
Aug 1993 |
JPX |
|
Parent Case Info
This is a divisional application of U.S. Ser. No. 08/535,961, filed Sep. 28, 1995, now U.S. Pat. No. 5,593,066, which in turn is a continuation of U.S. Ser. No. 08/170,929, filed Dec. 21, 1993, now abandoned.
US Referenced Citations (23)
Divisions (1)
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Number |
Date |
Country |
Parent |
535961 |
Sep 1995 |
|
Continuations (1)
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Number |
Date |
Country |
Parent |
170929 |
Dec 1993 |
|