Liquid dispensing system with controllably movable cartridge

Details Liquid dispensing system with controllably movable cartridge Liquid dispensing system with controllably movable cartridge

1995-08-24

2000-07-04

Simmons, David A.

Coating apparatus

Projection or spray type

222399, 118243, 118263, B05C 116, B65D 8300

Patent

active

060822899

ABSTRACT:
A liquid dispenser has a pump assembly with a housing and a cartridge that is movable relative to the housing between an upper non-dispensing position and a lower dispensing position. The movement is controlled by the selective introduction of air to create a column of air. The dispenser is otherwise biased downward. The movement of the dispenser can be used to avoid repeated upward and downward movement of a pump assembly. In a pump assembly with multiple dispensers, all but one can be raised while only the dispensing cartridge is lowered.

REFERENCES:
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patent: 5186982 (1993-02-01), Biette et al.
patent: 5341196 (1994-08-01), Hodoshima et al.
Hogan, ed. "Adhesive Dispenser Provides 2% Volume Repeatability," Design News, Apr. 11, 1994.
LCC/Dispensit, "Dispensit.RTM. Model 1000 Series," (1993).
Camelot Systems, Inc., "CAM/ALOT Liquid Dispensing Systems," Oct. 1994.
ASYMTEK, "A-600 Series Automated Fluid Dispensing Systems," Sep. 1995.
Bouras, Carlos E. and Alec J. Babiarz, "Adhesive Dispensing for Flip Chip-on-Board," Electronic Packaging & Production, (Oct. 1995).
Universal Instruments Corporation, "GDM1," Surface Mount (1994).
Engel, Jack, "Selecting The Proper Dispensing Tip," Surface Mount Technology (Oct. 1990).
ADM Options, "Optional Equipment for ADM-Automatic Dispensing Systems," Creative Automation (date unknown).
Panasert HD Series, "Three Types of Dispensing Nozzles Support a Wide Range of Chips for Reliable High-Speed Adhesive Application" (date Unknown).

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