Disposable rotary microvalve

Details Disposable rotary microvalve Disposable rotary microvalve

1997-06-04

1999-08-03

Kashnikow, Andres

Dispensing

With discharge assistant

Rotary

222412, 222309, 222410, 222282, G01F 1120, B65D 8854

Patent

active

059313552

ABSTRACT:
A novel motor controlled microvalve dispenser includes a body section through which fluid, e.g., adhesives, epoxies, fluxes solder pastes, for example, is accurately dispensed as a dot or bead or other shape, all of a predetermined dimension. The housing includes a removable and replaceable insert which prevents any of the fluid from contacting any of the interior walls of the housing or of the infeed passage. The insert includes both an infeed passage which extends out of the housing and an outlet passage also extending out of the housing, the insert including a bore into which a feed screw or auger is sealingly positioned for rotation by the motor. Attached to outlet passage is an applicator or tip dispenser such as a removable and replaceable dispensing needle.

REFERENCES:
patent: 4953756 (1990-09-01), Breault et al.
patent: 5564606 (1996-10-01), Engel
patent: 5609275 (1997-03-01), Brown et al.
patent: 5613624 (1997-03-01), Grzybowski et al.
patent: 5655692 (1997-08-01), Navin et al.
patent: 5669531 (1997-09-01), Hagemeyer

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