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Priority to ES0030955UpriorityCriticalpatent/ES30955Y/en
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Publication of ES30955YpublicationCriticalpatent/ES30955Y/en
Infusion, Injection, And Reservoir Apparatuses
(AREA)
Abstract
An improved plunger for injecting syringes consisting of a glass or glass tube provided with a flange at its upper end and closed at both ends, characterized in that the frosted part thereof is of equal diameter as the part corresponding to the handle , forming the annular throat that separates both parts during the same phase of manufacture of the tube with which, as no heating or subsequent operation is necessary, the annealing of the affected part and consequently the formation of a crown of weakness between the two zones of said tube. (Machine-translation by Google Translate, not legally binding)
ES0030955U1952-05-011952-05-01
Enhanced plunger for injection nozzles
ExpiredES30955Y
(en)