04231240 is referenced by 24 patents and cites 14 patents.

The invention consists of a screw cap assembly including a manually operable handle piece rotatable in both directions, a cylindrical case mechanically coupled with the handle piece for unitary rotation therewith, a key-operable cylinder lock mounted in the cylindrical case and capable of rotating only partially and independently therefrom when key-operated from outside, and a screw plug proper operably connected with the handle piece through the cylindrical case. The plug can be rotated in both screw-advancing and screw-retracting directions when the cylinder lock is key-operated to its unlocked position but only in the screw-advancing direction when the lock is in its locked position.

Title
Screw plug assembly
Application Number
5/929194
Publication Number
4231240
Application Date
July 28, 1978
Publication Date
November 4, 1980
Inventor
Kiyoshi Kitaori
Hiratsuka
JP
Masao Fujita
Fukushima
JP
Agent
Fleit & Jacobson
Assignee
Kokusan Kinzoku Kogyo Kabushiki Kaisha
JP
Nissan Shatai Kabushiki Kaisha
JP
IPC
B65D 55/14
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