Separating device for trimming the width of a poured curtain of

Details Separating device for trimming the width of a poured curtain of Separating device for trimming the width of a poured curtain of

1988-02-24

1989-11-14

Beck, Shrive

Coating apparatus

Projection or spray type

427420, 118DIG4, B05D 130

Patent

active

048799688

ABSTRACT:
A severing organ for trimming the width of a curtain of coating material poured onto an impingement site on a substrate, in particular a printed circuit board, to be coated and being moved at a distance below the foot end of the severing organ transverse to the direction of the flow of the curtain consists of a single separating element whose upper end is designed as a knifelike sharp severing edge. The side of the separating element turned toward the central region of the poured curtain is an uninterrupted, smooth wall surface which extends in only one plane from the severing edge in the direction toward the foot end of the separating element, forming a lower foot-end edge therewith, and has an inclination relative to the perpendicular which can be so adjusted that the trimmed central region of the poured curtain flows laminarly downward being laterally widened along the inner wall surface to become detached at the lower foot-end edge, and impinges directly with nearly the same widening onto the substrate to be coated, whereby a coating layer is deposited on the substrate with formation of only a narrow marginal bead having at most twice the height of the still undried layer on the substrate.

REFERENCES:
patent: 3345972 (1967-10-01), Masulis
patent: 3434457 (1969-03-01), Bass
patent: 4060649 (1977-11-01), Coleman
patent: 4060699 (1977-11-01), Ataka et al.
patent: 4230793 (1980-10-01), Losert et al.
patent: 4559896 (1985-12-01), Bossard et al.

Affiliated with

Also associated with

Rating

Separating device for trimming the width of a poured curtain of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Separating device for trimming the width of a poured curtain of , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separating device for trimming the width of a poured curtain of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1847202