Global Patent Index - EP 0808665 A3

EP 0808665 A3 2001-01-24 - Piston valve

Title (en)

Piston valve

Title (de)

Kolbenventil

Title (fr)

Valve à piston

Publication

EP 0808665 A3 (DE)

Application

EP 97107993 A

Priority

DE 19620577 A

Abstract (en)

[origin: EP0808665A2] The piston valve has a cylinder (5) containing a linearly displaced piston (1), with electrical isolation of the fluid inlet (12) from the fluid outlet (9), so that the fluid (8) can be held at earth potential at the inlet while the fluid (8.1) at the outlet is at a HV potential. The cylinder has an extension (11) associated with a control electrode (2), held at the same potential as the fluid at the valve outlet. Both the cylinder and the extension can be made of glass or ceramics.

IPC 1-7 (main, further and additional classification)

B05B 5/16

IPC 8 full level (invention and additional information)

F16K 3/24 (2006.01); B05B 1/32 (2006.01); B05B 5/025 (2006.01); B05B 5/16 (2006.01); B05B 12/14 (2006.01)

CPC (invention and additional information)

B05B 5/1666 (2013.01); B05B 5/1616 (2013.01); B05B 5/1625 (2013.01); B05B 12/1481 (2013.01); Y10T 137/8376 (2015.04)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

EPO simple patent family

EP 0808665 A2 19971126; EP 0808665 A3 20010124; EP 0808665 B1 20030305; AT 233605 T 20030315; DE 19620577 A1 19971127; JP H10109053 A 19980428; US 5797590 A 19980825

INPADOC legal status


2017-05-16 [REG DE R071] EXPIRY OF RIGHT

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