Patent · US Active

Diaphragm valve

US9638339B2 · kind B2 · utility

1Cited by

5References

9Claims

0Family size

Assignee

BUERKERT WERKE GMBH · DE

Inventors

Karsten Schwetz · Heilbronn, DE
Marcel Konstandin · Karlsruhe, DE
Jan Westermann · Ingelfingen, DE

Key dates

Filing date	Jun 5, 2015
Grant date	May 2, 2017
Priority date	—
Expiry date	Jun 5, 2035

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/6065
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A diaphragm valve comprises at least one valve body which has at least one inlet, at least one outlet, at least one flow channel and at least one shutoff web dividing the flow channel into channel portions. The diaphragm valve furthermore comprises a diaphragm which rests on a circumferential sealing seat of the valve body, and a drive having a drive housing, the drive being coupled to the diaphragm to press the diaphragm against the shutoff web for closing the valve. The diaphragm valve furthermore comprises a fastening unit for detachably locking the drive to the valve body, the fasting unit having a bayonet cap and an additional central retightening unit by means of which an axial tightening force is generated.

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