A fuel cap for closing a filler neck of a fuel tank for a vehicle includes a cover pivotally supporting a handle for movement between an extended position and a retracted position. The cover encloses an outwardly extending flange portion of a threaded closure body. Ratchet teeth are formed on a wall of the cover opposite from the wall pivotally supporting the handle. The handle operably engages a surface of the flange portion for moving the ratchet teeth toward the opposite surface of the flange portion. The opposite surface of the flange portion includes corresponding ratchet teeth engageable with the ratchet teeth of the cover when the handle is in an extended position. A biasing member urges the intermeshing ratchet teeth toward a disengaged position when the handle is in the retracted position.

The present invention provides a safety interlock system for mechanically securing an industrial process or appliance, including a lock which can be unlocked with a key, wherein the key comprises one or more key code elements which can be positioned in different positions and the selected position of the key code elements corresponds with a specific key code, and wherein the lock comprises one or more lock code elements which can be positioned in different positions and the selected position corresponds with a specific lock code, wherein the lock is locked except when the key code is identical to the lock code when the key is inserted.

A fuel filler assembly, in particular for a motor vehicle, having a filler, and a cap for closing a mouth of the filler and provided internally with a cylinder rotated by means of an operating key is disclosed. A reversible locking arrangement is provided for reversibly locking relative rotation of the cylinder with respect to the cap to selectively assume, when the cap is fitted closing the filler, a first operating position permitting relative rotation of the cylinder with respect to the cap and, hence, withdrawal of the operating key, and, when the cap is detached from the filler, a second operating position preventing relative rotation of the cylinder with respect to the cap and, hence, withdrawal of the operating key from the cylinder.

The invention relates to a closure for a refueling tank of a motor vehicle. Said closure has a closure cap which can be fixed to a filler neck in a liquid and gas-tight manner. The upper cap part rests against the pipe surface of the filler neck via an annular seating surface equipped with a flat packing. The entry part axially protrudes from the cap part and can be fixed to the filler neck in an axial direction. The aim of the invention is to provide a simple structure, in terms of movement, for reliably achieving an axial connection between the cap part of such a closure and the filler neck. To this end, the entry part is provided with a contacting element which can be reciprocated in relation to an under cut or counter-profile of the filler neck.

A locking cover plate can be selectively locked in position on a stortz pipe end fitting or can be unlocked and removed for access to the open pipe end. The cover plate includes a sliding plate that is driven laterally outward into a deployed state by rotating a drive bolt. The drive bolt is coupled to the sliding plate through a torque limiting coupling that transfers the rotation of the drive bolt to translating movement of the latch bar with a cam plate. Movement of the sliding plate is indicated through a front of the cover plate such that the user can identify whether the cover plate is locked on a fitting or simply placed on the fitting without the lock engaged.