Patent · US Active

Method for injection molding of thermoplastic pole parts, and mold for producing the same

US10183430B2 · kind B2 · utility

0Cited by

1References

4Claims

0Family size

Assignee

ABB Schweiz AG · CH

Inventors

Arne Klaska · Mülheim an der Ruhr, DE
Dietmar Gentsch · Ratingen, DE
Dariusz Bednarowski · Lapeer, US
Lukasz Malinowski · Kraków, PL
Wenkai Shang · Ratingen, DE

Key dates

Filing date	Oct 23, 2014
Grant date	Jan 22, 2019
Priority date	—
Expiry date	Nov 22, 2036

Classification

Technology area (CPC H)Electricity
CPC primaryH01H2033/6623
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A method for injection molding of thermoplastic pole parts utilizes a mold to fix at least one vacuum interrupter and contact terminals during a molding process. At least one injection opening or gate for injection of thermoplastic material is formed into the mold. The mold is applied with multiple injection openings at least along its long axis, for injection of hot thermoplastic material, and the injection openings or gates can be steered in such a way that they inject thermoplastic material simultaneously or with a defined time dependent injection pattern. This process alleviates the issue of a pressure gradient along the long axis of the molded pole part, shortens process times, and achieves a homogenous dissipation of material during the molding process.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.