Dispenser with sealed chamber, one-way valve and needle...

Details Dispenser with sealed chamber, one-way valve and needle... Dispenser with sealed chamber, one-way valve and needle...

2007-11-06

2007-11-06

Douglas, Steven O. (Department: 3771)

Fluent material handling, with receiver or receiver coacting mea

Filling means with receiver or receiver coacting means

With puncturing connecting means

C222S390000, C222S386000, C222S494000

Reexamination Certificate

active

11195520

ABSTRACT:
A syringe is provided for the delivery of controlled, metered amounts of any of numerous different substances to humans or animals, such as medicaments, pharmaceuticals, cosmetics, and food products, or to deliver materials which may react upon exposure to air, such as glue. The syringes include a body and a plunger. Means are provided in the syringe body and the plunger to effect controlled movement of the plunger into the syringe to permit delivery of a pre-determined amount of the substance contained in the syringe. A one-way valve is provided at the dispensing tip of the syringe to hermetically seal the portion of the syringe containing the substance to be dispensed.

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