Patent · US Expired

Piston driven pin closure nozzle assembly

US5375994A · kind A · utility

12Cited by

1References

23Claims

0Family size

Assignee

OTTO MÄNNER GMBH · DE

Inventors

Raimund Friderich · Sasbach, DE
Otto Manner · Endingen am Kaiserstuhl, DE

Key dates

Filing date	Aug 27, 1993
Grant date	Dec 27, 1994
Priority date	—
Expiry date	Aug 27, 2013

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF15B2211/7056
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A pin closure nozzle for injection molding molds has several working pistons acting on the same closure pin. These working pistons are arranged on a common throughgoing piston rod. Each piston rides in its own chamber and the piston rod passes through and is slidingly guided in openings in the chamber floors. The piston rod thus has at least two sliding guides and is accordingly prevented from tilting.

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