Coating apparatus – Projection or spray type – Applying solid particulate material
Reexamination Certificate
2005-02-08
2005-02-08
Lamb, Brenda A. (Department: 1734)
Coating apparatus
Projection or spray type
Applying solid particulate material
C118S612000
Reexamination Certificate
active
06852164
ABSTRACT:
A central powder supply system, referred to as a so-called powder center (1) is made available for use especially in high-performance industrial powder coating installations. The powder center (1) is divided into two separate chambers (2, 3), an operating chamber (2) and a powder chamber (3). Both chambers (2, 3) can be connected with a powder separating device via an opening which can be closed off. The powder chamber (3) essentially houses the powder preparation device (5), while the operating chamber (2) contain the operating parts (22) and supply parts (20, 21). The powder preparation device (5) comprises a height-adjustable lifting table (7) with vibration device for the powder supply container (6positioned thereon. In addition, there is a suction plate (12) which serves as suction device and has through openings (13). The suction plate (12) is surrounded by a strain basket (17) which, optionally, has a support basket (18). Provided at a distance thereto is a fluidizing device (14) which is configured in a basket-like manner and in which the strain basket (17) and, optionally, the support basket (18) are arranged one inside the other. The powder center permits a rapid and substantially automatic cleaning during change of powder.
REFERENCES:
patent: 5159765 (1992-11-01), Kramer
patent: 295 18 478 (1996-01-01), None
patent: 195 17 229 (1996-11-01), None
patent: 195 38 926 (1997-04-01), None
patent: 0 689 875 (1996-01-01), None
Calfee Halter & Griswold LLP
Lamb Brenda A.
Nordson Corporation
Tadesse Yewebdar T.
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