Patent Number: 6,250,224

Title: Powder sprayer

Abstract: A powder sprayer unit which provides improved spraying of powder onto printed sheets of material produced in printing presses. The powder sprayer includes a source of pressurized fluid, a source of powder, a mixer and a distributor. The mixer includes at least one fluid inlet positioned to receive fluid from the fluid source, and at least one powder inlet positioned to receive powder from the source of powder to mix the fluid and the powder forming a fluid/powder mixture. The distributor-includes a disperser positioned to disperse the mixture as it flows to a plurality of nozzles. The nozzles are positioned to spray the dispersed mixture onto specified areas of printed sheets of material having passed through the printing press.

Inventors: Hofmann; Hans J. (Acworth, GA), DiRico; Mark A. (Mansfield, MA)


International Classification: B41F 23/00 (20060101); B41F 23/06 (20060101); B41F 023/06 ()

Expiration Date: 06/26/2018