Dripless syringe

Details Dripless syringe Dripless syringe

B - Operations, Transporting

67

D

222/79

B67D 7/60 (2010.01) A61M 3/00 (2006.01)

Patent

CA 1249552

PATENT APPLICATION PAPERS OF MERLIN R. RUESCH FOR: DRIPLESS SYRINGE ABSTRACT A dripless syringe for dispensing a material such as glue, caulking, cement, foods, cosmetics, paint, oil, pharmaceuticals; etc., and any other materials suitable for dispensing thereby. The syringe plunger includes a generally hemispherically-shaped piston portion for pushing the material out of the syringe. Except for the piston portion, the plunger slides easily within a barrel of the syringe. In oper- ation, the hemispherical piston portion is deformed during dispensing, but returns to its original shape after dispensing is finished. Upon returning to its original shape, the piston portion stops further dis- pensing of the material from the syringe.

449705

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