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:
Aug. 16, 2011
Filed:
Jan. 27, 2005
Laurent Marc Philippe, Voglans, FR;
Anthony John Wilder, Hove, GB;
Laurent Marc Philippe, Voglans, FR;
Anthony John Wilder, Hove, GB;
Edwards Limited, Crawley, West Sussex, GB;
Abstract
The present invention provides a pumping system () comprising: a pumping mechanism (); a motor () for driving the pumping mechanism; a drive control () for controlling the motor; and means () for monitoring at least one state within the system; wherein, to improve the performance of the system, the drive control causes the system to operate for transient periods in an overload condition which can result in said monitored state exceeding a predetermined operational limit, and when operating in said overload condition said drive control controls the power to the motor dependent on the level of said monitored state thereby avoiding said state from exceeding said operational limit.