Injection molding machine
US4040595A · kind A · utility
21Cited by
10References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1976 |
| Grant date | Aug 9, 1977 |
| Priority date | — |
| Expiry date | Aug 9, 1996 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/565
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An injection molding machine includes a stationary mold half and a movable mold half. The stationary and movable mold halves cooperatively define a mold cavity for injection molding an end closure article having a base and a recloseable tab molded in an open position relative to the base. A thermoplastic material is injected into the mold cavity to form the end closure article. The movable mold half is then separated from the stationary mold half to open the mold cavity, and the tab of the end closure article is closed prior to ejecting the end closure article from the open mold cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.