Valves and valve actuation – With correlated flow path – Tank
Patent
1989-01-23
1989-11-21
Chambers, A. Michael
Valves and valve actuation
With correlated flow path
Tank
251356, 251327, F16K 5100
Patent
active
048817171
ABSTRACT:
A chamber for use in vacuum plants, particularly for treating or storing workpieces or other objects and/or for passing workpieces or other objects therethrough. At least one wall of the chamber has at least one opening through which the workpieces or objects can be introduced or removed. The opening can be closed by means of a closing member including a sealing member which acts together with a sealing surface. The sealing surface is arranged within the chamber laterally of the opening. A circumferentially closed sealing member arranged on the closing member rests against the sealing surface in the closed position of the closing member. The sealing surface has imaginary straight generatrices which extend parallel to the axis of the opening of the chamber. The sealing surface has at least two sealing surface portion which are lateraly offset from each other relative to the axis of the opening and which are connected to each other at opposite locations. The sealing member has sections of different lengths and/or shapes which are located in different planes. Two principal sections of the sealing member are located in planes which extend perpendicularly to the axis of the opening. The two principal sections are spaced apart from each other and are connected by lateral sections. The closing member has a surface which carries the sealing member and corresponds in shape to the sealing surface. The closing member is slidable in the wall of the plane and parallel to the plane of the opening.
REFERENCES:
patent: 587439 (1897-08-01), Jenkins
patent: 594634 (1987-11-01), Lunken
patent: 1613509 (1927-01-01), Gill
patent: 2797063 (1957-06-01), Hobbs
Chambers A. Michael
Schertler Siegried
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