Coating apparatus – With vacuum or fluid pressure chamber
Patent
1975-06-09
1976-11-30
Newton, Dorsey
Coating apparatus
With vacuum or fluid pressure chamber
118411, B05C 502, B05C 1110
Patent
active
039942562
ABSTRACT:
A holder for a pair of reversible fluid dispensers comprises a prismatic body that is symmetrical about three mutually perpendicular axes. A holder and pair of dispensers can thus be assembled to serve as a fluid dispensing assembly for either the left or right margins of sheet material passed adjacent thereto in a plane to intercept and actuate the dispenser nozzles. As embodied in a hot glue dispenser, the holder body includes two sets of fluid passages and of heating element and heat sensor and control mounting cavities that are symmetrically disposed about the three axes. Each multiple dispenser assembly is supported by a bracket assembly that incorporates a means to adjust the dispenser assembly angularly relative to the direction of the materials being passed through the machine whereby to vary, as desired, the spacing between the pair of applicator nozzles. As embodied in a hot glue dispensing apparatus, each dispenser preferably is of the type having an actuator barrel mounted for pivotal movement about a single axis that is oriented normal to the direction of passage of the sheet material engaging the nozzle of the actuator barrel. The actuator barrel, in turn, is mounted in a retainer that is angularly adjustable relative to its supporting body to maintain this orientation of the pivot axis relative to the flow direction of the material for different angular positions of the dispenser body. The bracket assembly also has a staggered pair of support shoes positioned for contact with the underside of the sheet material being handled, the pair of support shoes being adjustable, in unison, longitudinally relative to the pair of dispenser nozzles. With this arrangement, each support shoe can be adjusted to the desired offset position relative to the dispenser nozzle associated therewith in order to permit a trailing end portion of a section of sheet material to wipe against an actuator nozzle with insufficient force to maintain the nozzle in an open condition.
REFERENCES:
patent: 2859727 (1958-11-01), Phin et al.
patent: 3088433 (1963-05-01), Walter et al.
patent: 3425393 (1969-02-01), Shuh et al.
Mueller Frederick E.
Newton Dorsey
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