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:
Jan. 15, 2002
Filed:
Oct. 18, 2000
Paul E. Perrone, Lynchburg, VA (US);
Applied Synergistics, Inc., Lynchburg, VA (US);
Abstract
An apparatus and method is provided for discharging ash from a plurality of fossil-fuel boiler hoppers through actuator opened gate valves by opening only selected gate valves during a given discharge cycle and bypassing other hoppers. The time required to discharge a given hopper is determined and compared with a desired time range that would be required to discharge the hopper, if the hopper was filled to a desired percentage. Opening of a given hopper during subsequent cycles is based on a comparison of the actual discharge time with a desired discharge time range. If the actual discharge time is less than the minimum time of the desired time range, a time increment is assigned to the given hopper, and the hopper is bypassed on subsequent cycles until the assigned time increment has expired.