Patent · US Active

Pressure relief valve for a packaging container

US8555925B2 · kind B2 · utility

4Cited by

4References

20Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Hans-Peter Stadel · Lorch, DE
Herbert Stotkiewitz · Bietigheim-Bissingen, DE
Juergen Haak · Schwedt, DE

Key dates

Filing date	Jan 11, 2010
Grant date	Oct 15, 2013
Priority date	—
Expiry date	Jan 31, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/7887
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

The invention relates to a pressure relief valve for a packaging container (3), comprising a base body (4) with a central through opening (9), a sealing surface (14) and a peripheral region (18), wherein the peripheral region (18) may be sealingly connected to an inner side (3a) of the packaging container (3) and the sealing surface (14) has an inwardly tapering form and a membrane (6), making contact with the sealing surface (14) to permit a seal wherein a fluid (5) is arranged between the sealing surface (14) and the membrane (6). The membrane (6) is flexible and a recess (30) is made in the base body (4) into which the central through opening (9) opens out, wherein in the opening region of the central through opening (9), an annular bead (12) projecting in the direction of the membrane (6) is arranged, projecting into the recess (30).

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