Dry process enamel apparatus for bathtubs
AssigneeFerro Corporation
InventorRalph Fry
Life of this patent
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Abstract
Apparatus for automatic control and deposition of particulate material, such as powdered dry process porcelain enamel or the like, to a heated substrate, utilizing dispensing means adapted to contain particulate material and supported in overlying relation to the article to be coated, with mechanism for oscillating and actuating the dispensing means to provide for controlled application of particulate material to the article. Specifically, an improvement over the apparatus of U.S. Pat. No. 3,802,384 issued Apr. 9, 1974, whereby abutting ends of the dispensing means are biased along a generally vertical plane.
Claims17
Apparatus for applying particulate material to an article having a concavity and associated contigious surfaces, said apparatus comprising a rotatable and tiltable base, means on said base for holding the article to which particulate material is to be applied, support means coacting with said base, particulate material dispensing means mounted on said support means in upwardly spaced and generally overlying relationship with respect to said base, for directing particulate material downwardly onto the article, said dispensing means segmented, and including means for dispensing particulate material from each segment thereof onto the article when said dispensing means is in predetermined operative positional relationship with respect to the article, means associated with each said segment for lapping its deposition over that of an adjacent segment, and means for oscillating said dispensing means with respect to said base for dusting the particulate material through a predetermined range of travel of said dispensing means down onto the article and from an overlying position with respect thereto, said oscillating means including powered motor means for causing said oscillation of said dispensing means and thus said dusting through said predetermined range.
Dependencies are inferred from the claim text.