Patent · US Active

Device for opening or closing a seal set of a valve

US9810340B2 · kind B2 · utility

2Cited by

9References

12Claims

0Family size

Assignee

ASTRIUM GMBH · DE

Inventors

Stephan Kraus · Oedheim, DE
Thomas Maier · Grimmen, DE
Markus Wolf · Oftersheim, DE

Key dates

Filing date	Jul 24, 2014
Grant date	Nov 7, 2017
Priority date	—
Expiry date	Oct 17, 2034

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2300/505
WIPO fieldEngines, pumps, turbines
WIPO sectorMechanical engineering

Abstract

A device for opening or closing a seal seat of a valve arranged in a pipe for liquid or gaseous media includes a one-time only activation of the valve using a shape memory actuator. The shape memory actuator changes its external shape abruptly when a transformation temperature is reached that is dependent upon its alloy composition. The transformation temperature can be generated by a controllable electrical heating device of the device.

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