Bottles and jars – Closures – Self-sealing – piercable-type closure
Patent
1974-05-07
1976-02-24
Summer, Leonard
Bottles and jars
Closures
Self-sealing, piercable-type closure
128272, 206363, B65D 4120, B65D 5122, A61J 108
Patent
active
039400034
ABSTRACT:
The safety cap of the present invention is for use with a medicament vial having a puncturable seal. The cap includes a cylindrical extension provided with a shape-retentive but slightly expandable cylindrical body slidable therein having a diametrically reduced sharpened tubular needle extension on its inner end for piercing the seal. The body includes first and second portions of slightly different diameters, with the portion of smaller diameter outermost, and an inwardly tapering center portion, thus defining two shoulders for cooperating with an inwardly projecting lip on the outer end of the cylindrical extension to resiliently resist inward movement of the body and to prevent outward withdrawal of the body after it has been pressed inwardly to puncture the seal.
The body has a central bore formed therethrough defining an inwardly tapering passage and a larger diameter counterbore in which the pointed end of a hypodermic needle and the tapered tip extension of a conventional syringe barrel may be wedgingly and sealingly seated.
REFERENCES:
patent: 3336924 (1967-08-01), Sarnoff et al.
patent: 3505775 (1970-04-01), Andersen et al.
patent: 3823840 (1974-07-01), Zackheim
Jacobson Harvey B.
Pharmaco, Inc.
Summer Leonard
LandOfFree
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