Coating implements with material supply – Separate feed from plural supply means to tool or to work – Diverse materials supplied
Patent
1991-03-19
1992-12-15
DeMille, Danton D.
Coating implements with material supply
Separate feed from plural supply means to tool or to work
Diverse materials supplied
401209, 401273, 401278, A46B 1102, A46B 1304, A46B 1106
Patent
active
051710951
ABSTRACT:
A device applying a two-component composition to a workpiece surface comprises an applicator head (384) to which the two components are supplied separately via tubes (726, 382) arranged one inside the other. The applicator head includes a ball member (392) over the surface of which the components supplied via the tubes can flow and be applied to the workpiece surface, substantially unmixed at the point of application. The applicator head (384) supports a rotary brush assembly (398) which, when its annular operating surface portion is pressed against the workpiece surface, serves both to mix the substantially still separate components on the workpiece surface and to spread the thus formed adhesive composition over the workpiece surface. A gravity-fed system (T, RV1, RV2) is provided for supplying a first component and a pressurized feed system (P, R, RV3, RV4) for supplying a second component respectively to first and second bellows units (756, 744) from which said quantities are then fed separately at a controlled rate to the point of application (380). For metering the two components the bellows units are caused to increase or decrease in volume at a controlled rate, such that the component flow rate therefrom is constant throughout their operation. A control device for controlling the bellows units includes a pivotal lever (762) to which each unit is connected by an articulated linkage (760, 778).
REFERENCES:
patent: 2692402 (1954-10-01), Dechaux
patent: 3084069 (1963-04-01), Simon
patent: 3142084 (1964-07-01), McMullen
patent: 4037977 (1977-07-01), Ronai
patent: 4932094 (1990-06-01), McCowin
Davies John
Hanson Raymond
Price Frank C.
British United Shoe Machine Ltd.
DeMille Danton D.
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