Apparatus and method for generating single droplets

Details Apparatus and method for generating single droplets Apparatus and method for generating single droplets

1982-05-03

1984-04-10

Bell, Jr., Houston S.

Fluent material handling, with receiver or receiver coacting mea

Processes

Battery grid pasting

141 98, 222154, 222420, 422 99, B65B 304

Patent

active

044415320

ABSTRACT:
Apparatus and method are described for generating single droplets of fluid aterial in the 40 to 1100 micrometer range. A generator needle assembly is provided having a wire selected for insertion in the needle with critical push-fit clearance and a tapered ground pointed end having an acute included angle of less than 15 degrees. The plunger of the syringe is mechanically advanced while telescopically observing the droplet size. A pneumatic collet is used which air strips the droplet without turbulence to produce uniform sized single droplets without the inclusion of satellite droplets.

REFERENCES:
patent: 3572400 (1971-03-01), Casner et al.
patent: 3677447 (1972-07-01), Renty
patent: 3810779 (1974-05-01), Pickett et al.
patent: 4030640 (1977-06-01), Citrin et al.
patent: 4041995 (1977-08-01), Columbus

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