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. 10, 1991
Filed:
Mar. 05, 1990
Edward Y Hwang, Winter Park, FL (US);
John R Doyle, Winter Springs, FL (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
The disclosed system overlaps the control operation for throttle and governor valves to shorten a steam chest warmup period by fully opening a pilot valve and closing down the governor valve to maintain rolling speed when the steam chest needs wraming and the throttle valve - governor valve transfer speed has not been reached. The system also sets a minimum rate of acceleration for vibration run through periods and allows speed changes at designated periodic speed change windows as long as stress is within an allowable range. The system further eliminates vibration transients during a speed change operation by providing a smoothed trend preventing speed holds from increasing unnecessarily.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile