Spray jet polymer powder wetter
Patent 4531673 Issued on July 30, 1985. Estimated Expiration Date: 
August 13, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
August 13, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 2530671 2746728 3174693 3214103 3521824 3852022 Induced air flow self-cleaning spray nozzle Patent #: 4200232 InventorsAssigneeApplicationNo. 06/407689 filed on 08/13/1982US Classes:239/113, System fluid diverted239/422, Combining of three or more separate fluid streams239/425.5, Ambient air aspirated through inner flow path239/516, Resilient securing means366/178.2Feed means has plural identical outletsExaminersPrimary: Kashnikow, AndresAssistant: Forman, Michael J. International ClassesB01F 5/20 (20060101)B01F 5/24 (20060101) B01F 5/00 (20060101) AbstractWetting device for wetting and dissolving polymer powders without forming lumps and globular "fish-eyes" which clog the system apparatus. A nozzle holder has an annular passageway disposed therein which communicates with each of a plurality of spaced jet spray nozzles secured to the holder on a bottom face thereof in the form of a ring. Alternate nozzles spray inwardly forming a turbulent curtain of water. Remaining nozzles spray outwardly against inner wall of a spray confining cylinder to wash down polymer therefrom. An open-ended, powder receiving, tubular flexible insert extends through a central opening of the nozzle holder creating an annular space around the flexible insert. Water supplied to the passageway sprays from the nozzles to induce a downward airstream in the annular space to aid in drawing powder through the insert while simultaneously maintaining the powder in a finely divided state when falling into the turbulent curtain of water.Field of SearchAt or beyond outletIncluding peripheral or annular outlets at junction of opposed coaxial fluid paths Induction of ambient air Plural passages discharge one fluid to other Flow means of one fluid surrounds the other at outlet To outer fluid at outlet Dished or arcuate deflector Combining of three or more separate fluid streams System fluid diverted Ambient air aspirated through inner flow path Deflector movably or removably mounted relative to outlet Resilient securing means | |
