Patent · US Expired

Lid with vent valve

US4549668A · kind A · utility

7Cited by

4References

8Claims

0Family size

Assignee

Peroxid-Chemie GmbH · DE

Inventors

Robert Krauss · Torrance, US
Klaus Binder · Munich, DE

Key dates

Filing date	Jul 12, 1984
Grant date	Oct 29, 1985
Priority date	—
Expiry date	Jul 12, 2004

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65D51/1644
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

Lid with vent valve for packings of gas-evolving products, especially organic peroxides or hydrogen peroxide, characterized by a bush surrounded flush by an edge of a hole in the lid, especially by an annular collar on the inner side of the lid, having an axial passage widening by way of a conical stage to a hole in the crown of the cap, by a valve ball in the conical stage and by a compression spring which is arranged between a retaining ring of synthetic plastics material, which lies in an annular shoulder of the bush surrounding the axial passage close to the hole, and the valve ball.

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