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:
Nov. 10, 1987
Filed:
Nov. 12, 1986
Scott T Wilson, Bay Village, OH (US);
Nordson Corporation, Westlake, OH (US);
Abstract
A powder spray system including a powder spray booth through which product is conveyed past a spray gun mounted adjacent the booth to spray charged particles into the booth. A chamber containing a fan and final filters is located beneath the booth. A movable powder collector having a plurality of filter cartridges and a powder collection hopper is movable beneath the booth into sealed engagement with the hopper and with the chamber containing the fan and final filters. Mounted upon the powder collector there is a feed hopper into which a transfer pump is operable to pump powder from the collection hopper. A movable sieve is mounted upon the inlet end of a hose which supplies powder from a fluidizing bed at the bottom of the powder collection hopper into the transfer pump. An overflow outlet opening interconnects the feed hopper and the powder collection hopper, and the pump flows are adjusted so that powder is maintained in the feed hopper at the level of the overflow outlet opening.