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:
Apr. 30, 2013
Filed:
Sep. 15, 2008
Felix Mauchle, Abtwil, CH;
Christian Marxer, Fuerstentum, LI;
Felix Mauchle, Abtwil, CH;
Christian Marxer, Fuerstentum, LI;
Other;
Abstract
A powder feed apparatus for a powder spraycoating equipment includes a dense phase powder pump fitted with at least two feed chambers, alternatingly discharging coating powder. Each feed chamber includes a powder intake valve to aspirate coating powder during a suction stage and one powder outlet valve to discharge coating powder during a discharge stage. Each feed chamber further includes control valves to operate the dense phase powder pump and a control unit controlling the dense phase powder pump by the control valves. A dependence mode of the total open time (t) of the powder intake valves defines the dependence of the total open time (t) on an adjustable nominal value (m) adjusted by a powder adjusting element and relating to the rate of powder to be conveyed by the dense phase powder pump, and defining a response delay time (t) and an apparatus constant (C).