Coating apparatus – With vacuum or fluid pressure chamber
Patent
1977-05-09
1978-06-06
Kaplan, Morris
Coating apparatus
With vacuum or fluid pressure chamber
118254, 118256, B05C 500, B05C 706
Patent
active
040929515
ABSTRACT:
An apparatus is provided for applying liquid to solid surfaces to which access may be limited or restricted. Liquid is continuously fed to an applicator where the liquid clings to a supporting surface to form a bead defining an outwardly exposed meniscus protruding beyond the applicator. The applicator is moved along the surface in a proximate relationship thereto which brings the protruding meniscus into contact with the surface to wipe liquid onto the surface, the applicator all the while being spaced a slight but noncritical distance from the surface. A portion of the liquid wiped onto the surface is immediately aspirated from the surface by suction applied through the applicator to leave on the surface a deposit of liquid controlled in quantity by the degree of aspiration accompanying the wiping of liquid onto the surface. The continuous aspiration of liquid from the liquid bead forming the protruding meniscus on the applicator prevents dripping of liquid from the applicator and functions in conjunction with continuous feeding of liquid to the meniscus to provide a continuous circulation of liquid on the applicator, even when it is awaiting usage, with no fouling of the applicator and no stagnation or deterioration of the liquid on the applicator.
REFERENCES:
patent: 1147374 (1915-07-01), Coe
patent: 1182982 (1916-05-01), Crump
patent: 2257936 (1941-10-01), Bowers et al.
patent: 2694211 (1954-11-01), Warren
patent: 2832694 (1958-04-01), Vodicka
patent: 3404025 (1968-10-01), Wooton
patent: 3413143 (1968-11-01), Cameron et al.
patent: 3524757 (1970-08-01), Havens
patent: 3827397 (1974-08-01), Hebberling et al.
patent: 3900866 (1975-08-01), Bell et al.
LandOfFree
Meniscus forming applicator including vacuum anti drip does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Meniscus forming applicator including vacuum anti drip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Meniscus forming applicator including vacuum anti drip will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1486753