Container for storing reactive or volatile material
AssigneeNational Distillers and Chemical Corporation
InventorAuburn B. Cottingham
Life of this patent
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Abstract
A container having a dual-neck configuration providing inner and outer seals for reactive or volatile materials stored therein. An inner cylindrical neck provides the inner seal, and is surrounded by an outer neck providing the outer seal. Inner and outer caps are threaded onto the respective inner and outer necks, and each cap is provided with an elastomeric liner. The inner cap is further provided with an axial bore to allow a hollow needle to pass therethrough, thereby enabling material within the container to be withdrawn through the needle, and the inner elastomeric seal reseals itself after withdrawal of the needle.
Claims7
A reusable container provided with inner and outer seals for material stored therein, comprising:
- (a) a container body having an access opening providing access to the material stored therein;
- (b) a substantially cylindrical outer neck extending about said access opening and projecting from the container body as an integral part therewith, said outer neck having external threads formed therearound such that it is adapted to form an outer seal for the container;
- and
- (c) a substantially cylindrical inner neck extending from said container body as an integral part therewith and being in spaced relationship within said outer cylindrical neck and being arranged coaxially relative thereto, said inner cylindrical neck having external threads formed therearound such that it is adapted to form an inner seal for the container, and said inner cylindrical neck projecting from the container body for a distance less than that of the outer cylindrical neck so as to have the inner cylindrical neck recessed within the outer cylindrical neck, whereby an inner cap can be threadedly engaged over said inner cylindrical neck to provide an inner seal therefor, and an outer cap can be threadedly engaged over said outer cylindrical neck to provide an outer seal over both the inner cap and the outer cylindrical neck.
Dependencies are inferred from the claim text.