Surgery – Respiratory method or device – Ozone or ion generation
Patent
1979-04-23
1980-05-27
Yasko, John D.
Surgery
Respiratory method or device
Ozone or ion generation
128234, A61D 700
Patent
active
042045398
ABSTRACT:
The invention is concerned primarily with a piston action pump/syringe usable for veterinary work in particular (but not confined to this use) for the dispensing of metered doses of liquids or pastes, and includes a cylindrical body reciprocally housing a piston end of a co-axial plunger which extends outwardly from the body, the plunger and piston end having a common bore through which the body contents can be dispensed. The outlet end of the plunger, which is provided with a nozzle, has a novel one way valve permitting egress of the body contents and the end of the body remote from the plunger has a novel one way inlet valve for ingress of liquid or paste from a connected supply source. Preferably the invention includes an operating hand grip for the pump/syringe of one piece plastics construction.
REFERENCES:
patent: 3682175 (1972-08-01), Halter
patent: 4020838 (1977-05-01), Phillips et al.
patent: 4033346 (1977-07-01), Phillips et al.
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