The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 19, 1978
Filed:
Apr. 29, 1976
Arthur Oberle, Ennetbaden, CH;
BBC Brown Boveri & Company Limited, Baden, CH;
Abstract
A combined stop and control valve for turbine installations and in particular a steam turbine in which the bodies of independently operable stop and control valve components are arranged co-axially to one another in a common housing. The stop valve body has a bell-shaped configuration terminating in an annular seating surface and includes a servo piston component operating in a cylinder and an associated pilot valve for controlling steam entry into the cylinder from the steam chamber. The control valve body includes a bulb-shaped head connected to one end of a spindle, and the other end of this spindle terminates in a servo piston component operating in a cylinder and an associated pilot valve for controlling steam entry into the cylinder from the steam chamber by way of a longitudinal bore through the spindle and valve head.