Electroweldable socket and a device of manufacturing such a socket
US4634844A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 14, 1985 |
| Grant date | Jan 6, 1987 |
| Priority date | — |
| Expiry date | Mar 14, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2023/06
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An electroweldable socket comprising a conducting wire or gauze near the inner wall of the socket, the socket being manufactured by feeding conducting metal wire or gauze to a transverse extrusion head of an extruder and cutting the pipe extruded from the extruder to a socket length. Conducting wire may be fed to the extrusion head after having been wound to a helical spiral, the helical spiral may also be formed in the extrusion head or supplied accommodated in an outer groove of a thin walled tube having a helically extending outer groove. The wire may also be supplied as a hose assembled from said wires. Gauze is supplied in a pipe form obtained from a strip. The wire may comprise sections of helical spirals of mutally different pitch. Windings or groups of windings may be short-circuited. The socket is provided with connections for connecting to an electrical source if a conducting wire is present. A device for manufacturing the socket comprises an extruder with a transverse extrusion head and an orifice for supplying conducting wire or gauze to the extrusion head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.