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Title: Protective closures for containers



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Claims: What is claimed is:

1. A safety closure for containers comprising:

a neck portion on a container,

a liftable cap for the container,

means comprising slots in said neck portion and cooperating lugs on the cap to interengage said neck portion and said cap,

a sleeve surrounding said neck portion and said cap, and means to interlock the sleeve and the cap to prevent inadvertent opening of said cap.

2. A safety closure for containers comprising a neck portion on a container, a liftable cap for the container and means to interengage said neck portion and said cap, said neck portion being provided with a relatively elongated notch,

a sleeve surrounding said neck portion and said cap having an inwardly extending rod on its inner side protruding into said notch on said neck portion of the container whereby the sleeve and the cap are interlocked to prevent inadvertent opening of said cap.

3. The invention as defined in claim 2 comprising, in addition, a latch on the underside of the cap adapted to engage the inwardly extending rod on the sleeve to lock the cap against inadvertent opening thereof.

4. The invention as defined in claim 3 comprising, in addition, an extended bar on the inner side of the sleeve adapted to ride in the notch in said neck of the container to limit movement of the sleeve.

5. The invention as defined in claim 4 comprising, in addition, a shoulder formed on the interior of the neck of the container, said cap being disposed on said shoulder.

6. The invention as defined in claim 5, comprising, in addition, a gasket disposed between said shoulder formed on the interior of the neck of the container and said cap.
Other info:


Inventors: Bogert, Clayton (Glen Rock, NJ, US)

Application Number: 307880
Filing Date: 1972-11-20
Publication_date: 1976-02-17
Assignee:
Primary Class(es): 222/534 215/213, 215/216, 215/221
Other Classes:
US Patent Ref:
3295707Jan, 1967Knies222/556.
3782577Jan, 1974Levey222/534.
3795337Mar, 1974Nozawa et al.215/9.

Other Refs:
Primary Examiner: Tollberg, Stanley H.
Assistant Examiner:
Attorney: