Patent · US Expired

Operating mechanism for valves, gates and the like

US4219183A · kind A · utility

9Cited by

5References

5Claims

0Family size

Assignee

Leybold-Heraeus GmbH · DE

Inventors

Otto-Horst Hoffmann · Rodenbach, DE
Walter Heil · Nederland, US
Friedrich Stark · Langenselbold, DE

Key dates

Filing date	Nov 3, 1978
Grant date	Aug 26, 1980
Priority date	—
Expiry date	Nov 3, 1998

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF16K31/44
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

An operating mechanism for valves and the like comprises a housing with a port situated therein which is to be opened and closed. Associated with the port is a seat and a valve plate for closing the port. A rotatable shaft drive mechanism for the valve plate includes a shaft which rotates in one direction to effect movement of the valve plate from its open position to its closed position followed by a pressing movement over the valve plate against the seat and rotates in the other direction to effect movement of the valve plate in the opposite direction. The rotatable shaft drive mechanism includes an intermittent drive for the transformation of the rotatory movement of the shaft to the desired movement of the valve plate.

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