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US 4,543,908 AGranted
Material for filtering spray coating particles from air
OwnerArvid C. Walberginventor
Life of this patent
Estimating the term…
Abstract
A conductive filter material or cloth is utilized in spray booths, (1) to eliminate "bleed through" due to electrostatic force to grounded supporting structure, (2) to reduce clogging of the openings between the fibers of the filter material, and (3) to eliminate the possibility of arcing in low humidity and highly volatile solvent conditions.
Claims1
A spray booth comprising:
- (a) a moveable wall having a continuous flexible mat of closely spaced fibers forming a multiplicity of cells,
- (b) a multiplicity of randomly positioned fibers extending from the mat into each said cell with a multiplicity of random sub-cells,
- (c) a conductive coating covering said mat and randomly positioned fibers,
- (d) a conductive backup structure supporting said continuous flexible mat, and
- (e) means connected to said continuous mat to electrically ground said continuous flexible mat and said conductive backup structure.
2 more elements
Dependencies are inferred from the claim text.