Method for simultaneously molding portions of separable article
US5443784A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | Aug 22, 1995 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C43/12
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method is disclosed for simultaneously molding separate portions of an article which may be subsequently assembled to form the complete separable article. Apparatus for carrying out the method 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 ad the thickness of the article to be molded. The mold portions extend along a longitudinal axis and each defines a molding surfaces 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. The method for simultaneously molding separate portions of the article involves separating the mold porti…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.