Patent · US Active

Closure device

US10890262B2 · kind B2 · utility

0Cited by

23References

15Claims

0Family size

Assignee

VAT Holding AG · CH

Inventors

Anton Neumeir · Mering, DE
Christoph Angst · Eichberg, CH
Karlheinz Summer · Bludenz, AT
Bernhard Duelli · Übersaxen, AT

Key dates

Filing date	Mar 31, 2017
Grant date	Jan 12, 2021
Priority date	—
Expiry date	Sep 18, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K51/02
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A closure device including a closure element for closing an opening surrounded by a valve seat of the closure device. The closure device has an open state, in which the closure element exposes the opening at least partly, for an object to be led through the opening, an intermediate state, in which the closure element is brought into alignment with the opening without contact with the valve seat, and a closed state, in which the closure element at least rests on the valve seat via a seal of the closure device. The seal has a hollow space, to which a pressure medium from a pressure source of the closure device can be applied, and the closure device has a suction apparatus for sucking the pressure medium out of the hollow space of the seal.

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