초록 ▼

A safety cap which functions as a protective and sanitary seal for covering valves or quick disconnect coupling plugs of the type which are used on beverage tank dispensers and which may only be removed by destruction of the cap so as to provide a positive indication of tampering wherein the cap inc

A safety cap which functions as a protective and sanitary seal for covering valves or quick disconnect coupling plugs of the type which are used on beverage tank dispensers and which may only be removed by destruction of the cap so as to provide a positive indication of tampering wherein the cap includes an upper body portion which is securely engagable over the valve and completely covers it and a lower skirt portion which is attached thereto by both an integral tear strip and a plurality of spaced frangible connecting elements so that removal of the cap requires a destruction of the frangible elements and a subsequent severing of the tear strip.

대표청구항 ▼

A cap seal for use in covering and preventing undetected removal of a valve plug having a generally cylindrical wall on a container, the valve plug having an end face, an O-ring just below the end face extending radially beyond the contiguous surface of the plug, and a base portion with wrench engag

A cap seal for use in covering and preventing undetected removal of a valve plug having a generally cylindrical wall on a container, the valve plug having an end face, an O-ring just below the end face extending radially beyond the contiguous surface of the plug, and a base portion with wrench engageable surfaces extending radially beyond the contiguous surface of the plug, comprising a body having a generally cylindrical side wall, a closed end wall and an open end, said body being of a size approximately to engage the O-ring, said body having protrusion means adjacent to its end wall and, when the seal is mounted on the plug, extending inwardly beneath the O-ring and proximate to said plug wall, a skirt portion depending from said body and being joined thereto by frangible connecting means and having a wall portion with an integrally formed tear strip which is separable from said skirt portion along spaced frangible lines, said wall portion being substantially parallel to said side wall and overlying a least a portion of said wrench engageable surfaces, said tear strip extending along the height of the side wall and the skirt portion and being separable from said side wall along spaced frangible lines which extend along said side wall and formed by internal grooves therein, said grooves permitting air to escape from inside the cap and past the O-ring when it is applied to a plug, and pull tab means extending from said tear strip, whereby said tear strip may be severed along said frangible lines in order to remove said cap from the valve plug, and whereby undetected removal and replacement of said cap seal or manipulation of said wrench engageable surfaces is prevented.