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:
Jun. 26, 1984
Filed:
Jan. 18, 1982
Applicant:
Inventor:
William A Straslicka, Norvelt, PA (US);
Assignee:
Elliott Turbomachinery Company, Inc., Jeannette, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K / ;
U.S. Cl.
CPC ...
13763019 ; 415155 ;
Abstract
In an admission valve structure for a turbine all of the valves except the first opening one are spring biased closed, when seated. Because of the sequential opening of the valves, the valve closing bias of each spring acts as an opening bias relative to all earlier opening valves until that valve is opened. The combined spring forces act to open at least some of the valves thus permitting the governor to attain minimum speed once the throttle valve is opened in the steam header.