Valve and medicant dispensing syringe

Details Valve and medicant dispensing syringe Valve and medicant dispensing syringe

1977-07-20

1979-05-08

Scherbel, David A.

Dispensing

With discharge assistant

With material supply container and discharge assistant with...

128220, 137853, 137859, 222380, 222494, A61M 5315

Patent

active

041531868

ABSTRACT:
A dispensing syringe comprising telescopically engaged inner and outer sleeves or cylinders having corresponding dispensing ends and open receiving ends, an insert cup extends across and is positioned in the outer cylinder at its dispensing end, and a pair of identical resilient seal diaphragms engaging the outer surfaces of the dispensing end of the inner cylinder and of the insert cup for flow of material through the syringe in one direction. The seal diaphragms are of the same constructions for resilient engagement with the ends of the inner sleeve and the insert cup.

REFERENCES:
patent: 1367008 (1921-02-01), Bessesen
patent: 1589882 (1926-06-01), Hein
patent: 3342208 (1967-09-01), Steffes
patent: 3678931 (1972-07-01), Cohen
patent: 3685514 (1972-08-01), Cheney

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