A lockable closure for a gasoline filler tube is provided including a threaded extension which can be tightly threaded into the upper open end of a vehicle filler tube. The closure housing has an opening extending through the housing to communicate with the filler tube cavity as well as a flat upper surface of the housing which provides a sealing surface for a vapor boot during refueling. A locking plate assembly has a pair of spaced apart plates slidably received in the closure housing for movement into covering relation to the cavity or radially outwardly to an extended position leaving the housing cavity exposed for fuel entry. The closure may be locked in place.
A locking device for tank filler tubes is described, comprising a sleeve member for insertion in the filler tube to provide smooth walls, and an annular shaped locking collar that slides inside the sleeve and fastens through the sleeve to the inside wall of the filler tube. The locking collar does not have to be removed in order to fill the tank. Two disks, having off-center openings large enough for a filler hose nozzle, are arranged one above the other in the top of the locking collar so that the top disk can be rotated to allow the off-center openings to be aligned for a filler nozzle. A cylinder lock prevents rotation of the top disk when in the locked position. An alternative embodiment of the invention does not fit inside the tank filler tube, but rather is welded or joined to it. This alternative uses a padlock which prevents a cap from being rotated to a position which aligns openings in the device, allowing insertion of a filler hose nozzle.
An aircraft battery lockout device is used to isolate the connector assembly for the aircraft's wiring harness from the battery power receptacle. In one embodiment the device comprises a cover, lock, and insulative material. The cover is locked onto the battery power receptacle. The insulative material provides electrical isolation between the locking device and the battery power receptacle. In a second embodiment the device is locked onto the connector assembly.
The closure includes a base adapted to be screwed into a fuel tank filler pipe and having a fill opening normally closed by a hinged flapper which is opened when a fuel nozzle is inserted into the fill opening. The base is shielded against being manually gripped and unscrewed from the filler pipe by a cover also having a fill opening and normally supported for free rotation on the base so that turning of the cover normally is ineffective to unscrew the base. When a key is inserted into the cover, it couples the cover and the base for rotation as a unit and thereby enables the base to be unscrewed from the filler pipe. The same key also is used to actuate a locking device for locking the flapper in its closed position.
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.
