Dispensing – Resilient wall – Fluid pressure generating pump or pulsator and/or removable...
Patent
1981-03-09
1983-05-17
Rolla, Joseph J.
Dispensing
Resilient wall
Fluid pressure generating pump or pulsator and/or removable...
222401, 222395, B65D 3916
Patent
active
043836224
ABSTRACT:
An improved sanitary washbottle kit assembly comprising a specially shaped molded two piece dispensing and sealing stopper equipped with a dispensing tube and resilient bulb adjacent the neck of the flask of the washbottle. The molded two piece dispensing and sealing stopper is formed of resilient compressible material, one piece being an outer piece which covers the open top of the flask extending downwardly over the neck and is shaped with a projecting ledge at a height a short distance below the top of the flask to form a horizontal channel extending between the outside of the flask and the inside of the flask while the second piece is a molded inner stopper formed with a flange fitting into a counterbore of the outer stopper, this flange counterbore interfitting providing a single compressible resilient closure unit. The inner stopper piece may be adhered by adhesive to the inner stopper piece. An inner passageway portion is created within the flask by the conformation of the wall of the inner stopper piece below the projecting ledge of the outer stopper piece so that a passageway in the shape of an inverted U with a horizontal bridge portion located just below the top of the flask extends downwardly on the outside of the flask as well as on the inside thereof. The passageway on the outside of the flask in the outer piece ends in a T, the bottom opening of the T communicating with the bulb and the side of the T adapted to be closed by a finger in order to dispense liquid when pressure is applied by the bulb.
REFERENCES:
patent: 688544 (1901-12-01), Pitts
patent: 929990 (1909-08-01), Shields
patent: 2431596 (1947-11-01), Wickstrum
patent: 2598869 (1952-06-01), White
patent: 3430817 (1969-03-01), Falkenberg
patent: 4015753 (1977-04-01), Bennett
patent: 4043341 (1977-08-01), Tromovitch
patent: 4245788 (1981-01-01), Wright
Koniarek Jan
Rolla Joseph J.
Saffitz A. A.
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