Apparatus for simultaneously molding portions of separable article
US5304057A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1993 |
| Grant date | Apr 19, 1994 |
| Priority date | — |
| Expiry date | Jun 2, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C43/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for simultaneously molding separate portions of an article which may be subsequently assembled to form the complete separable article. The apparatus includes separate mold portions which, when assembled, define a molding cavity in which each of the mold portions has an outwardly extending flange. The mold portions are fastened together such that the flanges are spaced apart a distance at least twice as great as the thickness of the article to be molded. The mold portions extend along a longitudinal axis and each defines a molding surface which extends around the axis less than 360.degree.. When the mold portions are assembled, the molding surfaces extend completely around the longitudinal axis. The mold also includes silicone bead elements extending along the longitudinal axis in the space between the spaced apart flanges. The bead elements also define molding surfaces which bear against a portion of the molding material and urge it into contact with the surfaces of the flanges to form flanges on the molded portions of the article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.