Closure device for an orifice provided with a safety device nota

Details Closure device for an orifice provided with a safety device nota Closure device for an orifice provided with a safety device nota

1992-07-01

1993-12-14

Shoap, Allan N.

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220323, B65D 4500

Patent

active

052694330

ABSTRACT:
The invention relates to a closure device of an orifice bounded by a neck especially for sealing the orifice of a container for chemical, petroleum or analogous products. This device comprises a cover capable of being fixed to the neck by rotation about an axis in a first direction, the cover comprising a base and locking means to prevent inadvertent removal of the cover, said device having locking means comprising an element rotatably mobile in relation to the cover, the rotatable element having on the one hand, interlock means for connecting this element onto the neck in an interlocked manner, these means being adapted to cooperate with complementary interlock means provided on the neck of the element and, on the other hand, means for clamping the rotatable element in relation to the cover.

REFERENCES:
patent: 547958 (1895-10-01), McPherson
patent: 757376 (1904-04-01), Whitaker
patent: 2707575 (1955-05-01), Wheatley
patent: 4466550 (1984-08-01), Sullivan

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