Apparatus for manufacturing disc record package
US4465453A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1982 |
| Grant date | Aug 14, 1984 |
| Priority date | — |
| Expiry date | Nov 23, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S425/038
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An apparatus for fabricating a disc record package from a flat plastic sheet, comprising a narrow intermediate section interposed between a pair of panel portions. The apparatus includes a housing, a pair of substantially rigid planar folding plates pivotally mounted for movement, a rigid spacer plate, a means for selectively heating the narrow intermediate section of the said flat plastic sheet, and a means for folding the said rigid planar folding plates. The folding plates are operable between a spreadout co-planar position and a folded up juxtaposed position. The rigid spacer plate acts to form the central portion of the folded plastic sheet during the molding operation. The means for moving the said spacer plate and folding plates are pneumatically operated cylinders.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.