Powder coating spray booth with air curtain

Details Powder coating spray booth with air curtain Powder coating spray booth with air curtain

2005-03-15

2005-03-15

Lorengo, Jeffrey A. (Department: 1734)

Coating apparatus

Projection or spray type

Applying solid particulate material

C118S634000, C454S050000, C454S052000, C454S058000, C427S421100

Reexamination Certificate

active

06866717

ABSTRACT:
A powder spray booth includes a booth canopy wall arrangement to contain powder during a spraying operation; and a booth floor that is rotatable relative to the booth wall during a spraying operation. The floor can be rotated about an axis that is also the longitudinal axis of the spray booth. The booth may be generally cylindrical in shape with a round floor. The booth canopy and top are supported on a base frame separately from the floor. By this arrangement, the floor can be rotated relative to the booth canopy. A powder extraction apparatus in the form of a low pressure duct suspended off the floor draws up powder that has collected on the floor. The extraction duct is stationary with respect to the rotating floor during a spraying operation. The floor may also be translated along the axis of rotation between a first position in which the floor can rotate and a second position in which the floor is sealed against a lower edge of the booth canopy wall. The booth canopy and floor are made of composite materials that are very low in conductivity to minimize powder adhering to the floor and booth walls. The booth is thus easy to clean with a substantially shorter time period required for color change.

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