Expanding syringe with filling valve

Details Expanding syringe with filling valve Expanding syringe with filling valve

1978-12-07

1980-09-30

Scherbel, David A.

Dispensing

Resilient wall

Internally extending outlet pipe

128251, 222508, 222567, A61M 300

Patent

active

042250625

ABSTRACT:
A feminine syringe unit wherein a housing with a valve member and nozzle serve as both a filling and dispensing port for an expandable syringe bag. The syringe unit includes a removable nozzle retainer which has slidably secured thereto a nozzle member. When the nozzle member is removed, the bag is easily filled through a filling orifice and a dispensing flap valve. For cleaning and drying purposes, the valve is also removable from the bag by means of its being engaged by a valve retainer which in turn is threadably engaged on a bag retainer. The unit is activated by moving the nozzle toward the bag whereby the inlet portion of the nozzle will abut against a flap valve so as to create fluid communication between the inside of the bag and the nozzle. A hold-open means is also provided for the nozzle inlet portion in the valve member so that when a force is exerted on the bag to eject liquid through the nozzle it will not force the valve closed.

REFERENCES:
patent: 2969168 (1961-01-01), Newby
patent: 3104032 (1963-09-01), Hansen
patent: 3141580 (1964-07-01), Rodgers
patent: 3321114 (1967-05-01), Croyle
patent: 3401695 (1968-09-01), Rosenberg et al.
patent: 3754553 (1973-08-01), Hewitt et al.
patent: 3823848 (1974-07-01), Schuster et al.
patent: 3986509 (1976-10-01), Sneider
patent: 3993070 (1976-11-01), Sneider

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