Dispensing – With filter – Associated with vent passage
Patent
1986-05-16
1988-03-15
Rolla, Joseph J.
Dispensing
With filter
Associated with vent passage
222211, 239327, B67D 558
Patent
active
047307510
ABSTRACT:
A squeeze bottle powder dispenser has a plug fixedly secured in the bottle neck, air passages in the plug communicating with a mixing/spin chamber, a discharge orifice leading from the chamber, and a dip tube supported by the plug. A multi-cellular foam pad encases the lower end of the dip tube for effecting smooth and uniform movement, without clogging, of powder through the tube. Another multi-cellular foam pad may overlie the air passages through which powder is dispensed, without clogging, during inverted spray.
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patent: 4142652 (1979-03-01), Platt
patent: 4301799 (1981-11-01), Pope, Jr. et al.
patent: 4530466 (1985-07-01), Rounkles et al.
Chavkin Leonard
Mackles Leonard
Noland Kenneth
Rolla Joseph J.
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