Method for compressions moulding of elastomers
US5073329A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 19, 1990 |
| Grant date | Dec 17, 1991 |
| Priority date | — |
| Expiry date | Oct 19, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C2043/3689
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Apparatus and method for forming seals, such as composite seals in rubber/metal or other materials, includes supplying a raw elastomeric mixture in the form of a suitably shaped extrusion, and optionally a metal or other material insert, to respective loading and a possibly metal or other material insert are supplied to respective loading stations of a transfer machine; the machine is provided with a plurality of carriers each composed of at least two pivoted leaves joined in book-like fashion and each carrying a respective mould half, respective spring presses movable on the machine together with the said carriers, and cam means for holding the said carriers open at the loading stations; after cleaning of the mould halves and spraying of the upper mould half with a release agent a said insert is deposited between the mould halves by means of manipulators able to self-center themselves with respect to each carrier and then a blank of raw mixture obtained by slicing the extrusion is deposited between the mould halves; finally each carrier is closed in such a way as to bring the mould halves together, disposed clamped under the corresponding spring press and fed into a polymerization…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.