Patent · US Active

Safety valve

US11015722B2 · kind B2 · utility

0Cited by

170References

21Claims

0Family size

Assignee

GEA Farm Technologies GmbH · DE

Inventors

Reinhard Balkenhol · Paderborn, DE
Magnus Wiethoff · Oelde, DE
Verena Figgener · Oelde, DE

Key dates

Filing date	Apr 28, 2017
Grant date	May 25, 2021
Priority date	—
Expiry date	Jul 10, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K37/0033
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

A safety valve for a cleaning device for a milking installation for milking milk-providing animals, including a first block valve with an input, a second block valve with an output, a bleed valve with a bleed output, a piston rod and a drive unit, wherein the safety valve is movable from a blocking position, in which the first block valve and the second block valve are closed in order to block the input and the output and in which the bleed valve is opened in order to connect the bleed output to a connection, into a pass-through position, in which the first block valve and the second block valve are opened in order to connect the input to the output via the connection and in which the bleed valve is closed in order to block the bleed output, and back. The first block valve, the second block valve and the bleed valve of the safety valve are designed as seat valves with a common piston plate.

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