Fluid handling – Destructible or deformable element controlled – Destructible element
Patent
1976-09-08
1977-11-01
Schwadron, Martin P.
Fluid handling
Destructible or deformable element controlled
Destructible element
1282142, 128247, 251342, A61M 514
Patent
active
040561160
ABSTRACT:
A sealed fluid conduit, closed with a diaphragm, contains a spike having forward and rear ends and adapted for moving to rupture the diaphragm with the forward end. A transversely-enlarged, flexible, axially collapsible portion of the conduit is positioned adjacent to the spike and adapted to permit manual movement of the spike from outside of the conduit to rupture the diaphragm. In accordance with this invention, a longitudinal groove is defined in the spike extending from the front end and terminating at a point between the front and rear ends. The spike defines an annular, enlarged sealing portion of a transverse dimension which is proportioned to sealingly occlude the portion of the conduit immediately forward of the transversely enlarged collapsible portion, the sealing portion being positioned between the terminating point of the groove and the rear end of the spike. The spike is positioned so that the enlarged sealing portion normally resides within the transversely-enlarged collapsible portion.
REFERENCES:
patent: 2667760 (1954-02-01), Curtis
patent: 2829801 (1958-04-01), Ayres
patent: 3110308 (1963-11-01), Bellamy
patent: 3448779 (1969-06-01), Horwitt
patent: 3648693 (1972-03-01), Koremura
patent: 3685795 (1972-08-01), Caster
Carter Garry L.
Granzow Daniel B.
Baxter Travenol Laboratories Inc.
Collins Henry W.
Ellis Garrettson
Flattery Paul C.
Gerard Richard
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