Abstract: A tote box with a separate security cover, both components being executed in plastic. The tote box is an upwardly opening rectangular receptacle. The security cover is symmetrical and has locking tabs on opposite ends thereof so that the cover can be snapped into locking engagement with slots defined in the receptacle. The security cover can also be flipped over, or reversed, and positioned atop the receptacle to increase its capacity. Tote boxes can be stacked upon one another with the security cover either locked or seated thereon, and the tote boxes can be nested one within another when the covers are removed.

Abstract: A locking fuel cap has a handgripping shell that is selectively connected to a threaded closure through a lock mechanism and a torque limiting mechanism. The torque limiting mechanism is operable to limit torque in the closing direction. The lock mechanism has a key actuated latch member which is engageable with a drive finger to align the drive finger with cooperating drive surfaces on the torque limiting mechanism when the fuel cap is unlocked. The latch mechanism maintains the drive finger aligned when the key is operated to the lock position until the fuel cap is installed. The latch mechanism is released by the drive finger engaging the drive surface during such installation so that the drive finger can return to the unaligned position if removal of the fuel cap is attempted while the lock mechanism is in the locked position.

Abstract: A substantially rectangularly shaped metal housing includes a top wall, a rear wall, a pair of side walls and a bottom wall. The front edges of the side walls carry a pair of opposed, vertically extending channel members which are adapted to accommodate the side edges of a substantially rectangularly shaped front cover. A lock is mounted at the upper central portion of the cover which locks into a cooperating element on the inside top wall. The lock also interferes with the bottom wall when the cover is slid downwardly to allow the cover to be suspended by the housing. One of the upper corners of the cover is cut off so that the cover can be rotated and removed when in the suspended position. A strand bar extends between and is supported by a pair of opposed tapered indentations in the interior side walls.

Abstract: A security box for storing, transporting, and selectively viewing papers is disclosed. Interfitting locking structure is provided between the lid and container. Pockets having interior and exterior portions are provided in the side and end walls. The interior portion of the pockets supports opposite ends of dividers, and the exterior of the pockets comprise nesting stops for containers stacked in a nested stack without lids.

Abstract: A security enclosure of wirework construction to house a microcomputer and related equipment to permit normal use thereof but preventing access to its internal accessories and removal of its connecting cables. A base portion is attached to the work area and one or more upper portions are pivoted to close and lock the enclosure. The wirework construction is provided with bends to prevent removal of cable connectors and is placed to prevent access to the interior of the machine.

Abstract: A lock box includes a pair of box-like base and cover structures having side and end walls configured to overlap when the base structure is nestingly received in the cover structure. A key-operated lock is carried on the cover structure and is engageable with a receiving formation provided on the base structure. Interfitting formations are provided on the base and cover structures to assist the key-operated lock in releasably retaining the cover structure in place on the base structure. The base structure has a back wall which may be fastened to a mounting surface.

Abstract: A fuel tank cap (10,130) having a venting valve (56,56A) adapted to relieve pressure and temperature in the tank and prevent spilling fuel from the tank. A cover plate (28,28A) is automatically (34,34A) removed from the cap by excessive temperature so as to allow fluid in the tank to escape. The valve body (56) has a spin chamber (98), having generally circular cross sections (102,104) and at least one tangentially directed side wall inlet opening (106). The chamber cross sections decrease in diameter upwardly of the inlet opening (88) to a point below a circular outlet opening whereby gas venting through the chamber spins a light weight buoyant ball (94) around the chamber so as to prevent the ball from closing during venting. The ball (94) is lifted onto a seat (92) at the outlet to close it when liquid enters the chamber to a predetermined level. A heavy ball (96) in the chamber holds the light ball (94) on the seat when the chamber has been tilted a predetermined amount.

Abstract: A fuel cap has a locking mechanism for preventing unauthorized removal of the fuel cap from the fuel fill tube. The lock mechanism includes a cam structure which is operable to provide a selective drive connection, depending upon the condition of the lock mechanism, between the hand grip portion and the threaded closure portion of the fuel cap during rotation of the hand grip in the cap removal direction. The cam mechanism is operable to provide a drive connection in the cap insertion direction regardless of the condition of the lock mechanism.

Abstract: A lock for a motorcycle saddle bag container includes a key operated plug attached to a lock housing mounted on the inside wall of the container. The plug operates a pivotal and transversely movable shutter. The shutter, in turn, cooperates with a strike attached to the inside of the lid for the container. A rubber seal maintains the shutter and strike in a locked position until the lid is manually depressed to compress the seal and release the shutter from the strike.

Abstract: A rigid frame attachment for resisting tampering with an electrical meter. Angle irons enframe the meter face, with frame portions extending rearwardly along a lateral wall of the meter housing to rear frame portions engaging the rear wall of the housing. The front of the frame is attached, as by a lock, to the meter front wall at a point spaced from the side walls of the housing.

Abstract: A discharge head for a submersible pump includes a plastic body having an internally threaded neck for receiving a tapered threaded end of a fluid delivery pipe and a metal shell surrounding and engaging the neck to reinforce the neck against the radial forces developed by the tapered end of the pipe as it is tightened. An annular shoulder extends radially outward and downward from the neck and includes a pair of apertured lugs, each having a pair of laterally extending detents. The shell includes a shoulder corresponding to the annular shoulder and a pair of slots for receiving the lugs and for snapping down over the detents to aid in retaining the shell on the body. In one embodiment of the invention, a skirt extends downwardly from the annular shoulder and includes threads for connection with corresponding threads on a casing of the pump section of the pump.

Abstract: A security storage box for papers of a similar size, such as checks, is provided by a one piece molded container, one piece molded lid, and accessories such as a handle, key lock securing the lid to the container, adjustable interior partition wall to adjust the container for a different volume of papers, and a transparent envelope on one end wall of the container to secure identification cards. The container and lid are provided with various reinforcing ribs and flanges, and an interlocking structure to secure multiple lidded containers in a stacked position with like end walls aligned.

Abstract: A fuel tank cap for use in a motor vehicle including a cap body having a path communicating the interior of a fuel tank with the atmosphere and having incorporated therein a sensor valve unit. The sensor valve unit includes a valve housing having an upper wall with a first through-opening therein open to the path for communication with the atmosphere, a peripheral wall with a second through-opening at a predetermined position which is open to the housing interior and communicates with the fuel tank interior, an upright funnel shaped bottom wall, a weight ball movably positioned on the bottom wall, and a valve body resting on the weight ball so as to be moved upwards for closing the first through-opening when the weight ball rolls over the bottom wall and thereby carries out an upward movement.

Abstract: An improved lock for a filler cap having a cover adapted to be received within the tank opening with a retaining member connected at the lower face of the cover for cooperating with the wall of the opening to fasten the cap within the opening; the lock is mounted in the cover and extends downwardly toward the retaining member and the retaining member has cooperating means engagable with the lock when the retaining member is in the fastened position. The lock and the cooperating means prevent movement of the retaining member from the fastened position.

Abstract: A tank closure mechanism, especially for a fuel tank of an automotive vehicle, with a locking tube pertaining to the cap proper and including a pressure plate and a gasket. The locking tube is rotatable by rotating the cap housing during locking operation of the cap by a latch of a lock cylinder but remains stationary after an unlocking during a rotation of the cap housing. A clamping ring exerting a tightening clamp is rotatable together with the locking tube. A compression spring of a bayonet catch presses against the clamping ring with the spring being supported on the cap and the pressure plate. The locking tube and pressure plate are fashioned so as to be bi-partite and the pressure plate extends over the locking tube with a sliding fit or the like.

Abstract: A substantially rectangularly shaped metal housing includes a rear wall, a pair of side walls, a top wall and a lower partial front wall; the upper portion of the front of the housing being open. The top wall being larger than the base of the housing and extending forwardly and downwardly over the front thereof. A cover for the open front fits up under the top wall and includes a rearwardly and downwardly extending flange which rests on the top edge of the partial front wall to support the cover in place. A locking member prevents unauthorized removal of the cover.

Abstract: A shield is rotatably mounted to a threaded element of the closure on an axis coincident with the axis of the threaded element, so that the shield impedes access to the threaded element. The shield can be removed from the threaded element or connected to the threaded element only upon actuation of the closure by an appropriate key. Absent such actuation, the threaded element cannot be rotated for disengagement from the conduit by rotating the shield. The closure is protected against attempts to disengage it from the conduit by bonding the shield to the threaded element with an adhesive and rotating the shield.

Abstract: A fuel tank lock for use with a conventional filler neck of an automotive vehicle. The filler neck has a baffle plate formed with a constricted passage normally closed by a biased-shut valve carried by the baffle plate. The valve is forced open when engaged by an unleaded fuel nozzle. The upper end of the filler neck is provided with a conventional fuel tank cap. The fuel tank lock includes a body provided with a key operated lock and a shank that extends through the constricted passage. The lock operates a latch that engages the underside of the baffle plate to prevent unauthorized withdrawal of the lock from the filler neck.

Abstract: A lock apparatus shields the valve stem of a petcock and prevents unauthorized opening of the petcock.

Abstract: A high-security fill cap is adapted for releasable attachment to the open end of a fill pipe, connected to an underground fuel storage tank or the like. The fill cap comprises an annular cap, a plurality of latches pivotally mounted on the cap for movement between latched positions engaging the pipe and unlatched positions disengaging the pipe, an actuating mechanism, including a handle, for moving the latches between their latched and unlatched positions in response to reciprocal movement of the handle, and a key lock secured centrally within the handle to selectively rotate a cam plate thereof between its locked and unlocked positions beneath the cap.

Abstract: A locking gas cap for a threaded filler neck having a sealing lip extending peripherally about its axis, the cap comprising a closure member threaded to engage and close the filler neck, a gasket on the closure member for engaging and sealing against the lip, an outer shell providing a hand grip secured to the closure member for rotation thereon, a key-operated lock and at least one lock-actuable bolt connected to the shell for rotation therewith. A race is disposed for rotation in the shell, and a driving connection is provided between the race and the closure member which is torque limited in the direction which advances the closure member on the filler neck and positive in the cap removal direction. A spring is provided for yieldably urging the bolt into engagement with the race. The spring cooperates with a plurality of engaging pockets in the race to provide a positive driving connection between the shell and race in the direction which advances the closure onto the filler neck.

Abstract: A filling connection for vehicles driven by internal combustion engines, which is fastened in an opening of the car body and has one section disposed on the inside of the car body adapted to be connected to a line leading to the fuel tank, while a section disposed on the outside is provided with an inner or outer thread onto which a lid may be screwed, and an axially effective sbaling is arranged between the lid and the section disposed on the outside.

Abstract: Lockable meter retention rings for securing electric meters in meter boxes comprise an inner ring of multiple arcuate parts wherein the inner ring has spaced-apart inwardly extending flanges for holding the electric meter in the meter box and a steel outer ring which fits over and engages with the inner ring wherein the outer ring keeps the inner ring assembled. The outer ring has a lock enclosure which, together with a portion of the inner ring, defines an opening for receiving and retaining a barrel lock, the barrel lock securing the rings together. Bayonet and screw type engagements between the inner and outer rings are disclosed, with the barrel lock preventing relative rotation of the rings necessary to disengage them. Another form of engagement has a flange of the outer ring received by the inner ring, with the barrel lock securing the outer ring to the inner ring diametrically opposite the flanged engagement.

Abstract: A locking device for fuel tanks which blocks the filler neck in the tank. A cylindrical sleeve having an opening through its length inserts into the filler neck below the outer end of the filler neck and is secured by set screws threaded through the sleeve wall into contact with the filler neck. Blocking means comprising a cylinder lock and an annular adapter, when the device is used on large diameter filler necks, fit into the sleeve, blocking the opening in the sleeve and covering access to the set screws. The cylinder lock, which is key-activated, includes an arm which rotates into engagement with the sleeve, preventing removal of the blocking means.

Abstract: A one-piece plastic closure mechanism is provided which incorporates two flexible living hinge sections so that the leaves of the closure mechanism can pivot through the angles required for locking and unlocking a container cover from a container base. The closure mechanism may be attached to the base by screws, staples, or the like or may be integrally molded with the container to eliminate any post-molding assembly steps. One leaf of the closure mechanism contains a slot which engages a protrusion such as a tab on the container cover to lock the cover and base when the mechanism is closed. The container is designed so that individual containers are nestable for shipment, storage, and display. The interior of the container cover is provided with a clip for holding a writing implement and with a series of vertically upstanding ridges so that documents can be viewed in an upright position when the container is open.

Abstract: A locking means for locking the fuel tank cap on a vehicle such as a large truck such that the fuel cap cannot be removed and the means bolting the locking means to the tank cannot be removed without unlocking the locking means.

Abstract: A locking cover for a pipe connection having an inner member with a radial sealing flange detachably locked with an overlapping outer cap by means of a locking mechanism. The locking mechanism comprises engaging projections, extending radially inward from the wall of the cap, which in turn includes a guide surface directed inward as well as a connecting surface to engage the sealing flange. The connecting surface is bent in a convex or arcuate shape from the radial inner end of the guide surface to the wall of the cap. Thus, the sealing flange lies with its edge on the connecting surface. In this way the outer cap can spring loose when force of a given magnitude is exerted upon the inner member without breaking the locking mechanism.

Abstract: A threaded cap for sealing an automotive vehicle fuel tank is provided with a unitary molded central plastic core and a bonnet rotatably mounted on the plastic core. A pair of concentric races are defined on the plastic core. The inner race carries a unitary molded plastic frame which has a pair of resilient, closely spaced transverse cantilevered arms defining a gap therebetween. The frame is also provided with a resilient catch. A unitary molded plastic bolt is reciprocally movable along the gap to engage and disengage the core for rotation with the bonnet. The bolt has two detents which coact with the catch on the frame to hold the bolt at selected unlocking and locking dispositions of movement. The bolt includes a stud which projects into the gap between the arms so that the arms spring bias the bolt toward the locking disposition. A lock mechanism is used to shift the bolt to an unlocking disposition so that the fuel cap be disengaged from the fuel tank inlet pipe.

Abstract: A locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axially inwardly opening pockets, and the closure includes flexible pawl fingers for engaging the pockets to provide a driving connection between the closure and race which is positive in the cap-removal direction and torque-limited in the cap-advancing direction. The race also includes a set of peripherally spaced, radially inwardly projecting teeth. A lock-controlled bolt member mounted in a hub which is connected for rotation with the shell is movable by the lock to a cap-removal position. The bolt member engages driving teeth provided within the closure member.

Abstract: A locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axially inwardly opening pockets, and the closure includes flexible pawl fingers for engaging the pockets to provide a driving connection between the closure and race which is positive in the cap-removal direction and torque-limited in the cap-advancing direction. The race also includes a set of peripherally spaced, radially inwardly projecting teeth, and the shell is molded to provide a pair of flexible drive fingers for engaging the peripherally spaced and radially inwardly projecting teeth to provide a driving connection between the shell and race which is positive in the cap-advancing direction and torque-limited in the cap-removal direction for free ratcheting of the cap when it is in position on the filler neck and locked.

Abstract: A fuel tank cap for a motor vehicle includes a venting passage normally closed by a spring-biased valve adapted to vent the tank where the pressure in the tank exceeds the atmospheric pressure by more than a first given differential. The valve body is bored to receive a spring-biased ball valve acting in the opposite direction to allow the atmosphere to the tank when the atmospheric pressure exceeds the pressure in the tank by more than a second given differential.

Abstract: A locking device for a tank having a spout and a cap attached to the spout, the device including a main body having a first and second hinging portion. The first and second hinging portions are hingedly connected with each other and have corresponding mating surfaces surrounding a depression whereby when the mating surfaces are in contact the depressions form a cavity. The cavity completely encompasses the cap and a portion of the spout including a split ring that is firmly engaging the spout. The split ring being firmly attached to the spout and within the cavity prevents a thief from pulling up on the main body to frictionally engage and twist the cap off by engaging the inside edge of an inwardly extending flange of the main body while the main body is being rotated. The cavity is also tall enough to prevent a thief from pushing down to frictionally engage the cap with the main body. A lock securely holds the first and second hinging portions in a closed position.

Abstract: An anti-theft cap for closing a filler pipe of a vehicle fuel tank is provided having a body shaped to locate within the end of the filler pipe and a cover portion having sealing means to engage the end of the filler pipe. A cylinder lock mounted in a bore of said body serves to lock and unlock the cap. A carrier member is connected to said cylinder lock so as to rotate therewith between a locked position and an unlocked position. Two conduits are formed in said body diametrically opposite each other and each have one end at a surface of said body and the other end at another surface which other end communicates with the interior of the filler pipe when the cap is in position thereon.A first valve carried by said carrier member communicates at one end thereof with the atmosphere and at the other end thereof with said one end of its respective conduit when said carrier is in said locked position, whereby vapor from the tank may be vented when the pressure in the tank exceeds a predetermined value.

Abstract: A safety device for an electrode-type steam vaporizer having an electrode assembly enclosed in a protective housing allows access to the electrodes for cleaning or adjustment only when a key, preferably the electric plug for the vaporizer, is inserted through an opening in the protective housing to release an interlock mechanism normally precluding removal of the protective housing from the electrode assembly. When the protective housing is removed, the key is automatically locked in the opening in the protective housing by a spring-biased lock pin and cannot be removed until the electrode assembly is again repositioned in the housing with the electrode assembly and housing properly assembled relative to each other. The safety device can be used in other electrical appliances, such as a toaster, that have electrical elements enclosed in a protective housing.

Abstract: A cap and filter assembly for fuel tanks of automotive vehicles is provided in which the cap comprises two hollow cylindrical members of plastic material. One of said members has at one end a handle and a circular flange of the closure of the filler opening and at the other end first snap means for engaging and retaining a cylinder lock and second snap means for receiving a complementary portion of the other of said hollow cylinder members. The engagement between the two members is established by means of mating square cross-section portions of said members.

Abstract: 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.

Abstract: A protective box for providing a secure covering for a closure device, such as a lock, bolt, or the like. The protective box includes a housing having a rear wall which has an opening therein for access to the closure device to be protected. The rear wall is securely fastened onto the support surface containing the closure device, such as onto a door or wall supporting a lock. A cover member closes the front of the housing and is slidable between a closed position providing an enclosed area within the housing into which the closure device can face, and an open position whereby access can be had to the closure device. A lock mounted on the cover member engages with a roller assembly provided in the housing to securely retain the cover member in its closed position. In a modified form, two locks can be mounted on the cover member for engagement with associated latching elements disposed on the housing.

Abstract: A closure cap device for a fuel tank of a motorcycle which is so constructed that a lever is pivotally attached to a part of the fuel tank body in such a manner that it may be freely contacted to and separated from a closure cap fitted on the fuel pouring port of the fuel tank, a lever engagement section is formed in the outer surface of the closure cap, and engagement members are provided at the tip end part of the lever and the body of the fuel tank so as to be mutually engaged when the lever is snugly fitted into the lever engagement section in the closure cap at the time of perfect tight-fitting of the cap to the fuel pouring port.

Abstract: A commercial trash bin is provided with locking arrangements which restrict the use of the trash bin to the authorized user thereof, and still permit the dumping of the trash bins without wasting any extra time by the garbage truck operator. The lids are provided with a special latch which is disabled to permit dumping through gravity action when the trash bin is lifted and inverted and dumped. In one case the mechanism includes a heavy spring which is compressed by the weight of the trash bin, and in another case a gravity operated latch releasing mechanism is employed. In each case, to open the trash bin while it is in the upright orientation, a key-operated release, either in the form of a padlock or a built-in lock mechanism, is used.

Abstract: There is disclosed herein a fire hydrant protection device which prevents unauthorized individuals from tampering with or operating fire hydrants. In one form the protection device provides an outlet cap member provided with a projection suitable for engagement by a special wrench such as for removal or installation of the cap and a cover member movably associated therewith which includes provisions preventing access to the cap member projection by conventional tools thus insuring that only authorized individuals will be able to remove the device. In another form, the device is designed to be installed over the valve actuating mechanism so as to similarly prevent access thereto by individuals not having the special wrench.

Abstract: A closure cover consisting of an inner cover member having a substantially cup-shape capable of engaging with the aperture to be closed, the cover member including a sealing flange adapted to co-operate with the edge of the opening, an overlapping outer cap member rotatably mounted on the circumference of the edge, which cap member has a centrally located, firmly seated hollow support member for a cylinder lock, the lock being rotatably mounted therein, the cap member being axially supported by a radially displaceable bolt, movement of said bolt being effected by an eccentric, whereby the cover is coupled to the inner cover component, and provided with a sleeve-shaped surrounding component with base closure at the bottom for sealing against the exterior, for a freely rotatably outer cap secured by a key when the inner cover component is firmly tightened on the socket opening wherein an inner cover member has a first cup-shaped member having a radially directed edge flange including a revertive free end portio

Abstract: A device for capping a supplying opening of a fuel-tank of a motor vehicle or the like, comprises a capping outer casing of T-shaped cross section, and cylinder-lock means centrally mounted inside the outer casing for holding and releasing a locking condition, wherein although a distance frictionally driven by respective projections mounted on a rotary member against resilient force is fully, automatically relaxed to permit respective locking bars to be projected for locking and thus, the device is locked when a key fitted in cylinder-lock means is left in a free condition, the key fitted is arranged to be not detachable from cylinder-lock means without further manual actuation thereof in the same direction of the free returning direction thereof.

Abstract: A lockable gas cap assembly includes an inner hollow shell adapted to be threadedly connected to the filler tube of a vehicle gas tank and an outer shell which coaxially surrounds the inner shell for removably retaining it for normal relative rotation with respect thereto. A two-part, key-operated locking member is likewise releasably secured within the outer sleeve, a front hollow portion of the locking member exhibiting a radial slot that is aligned with an inwardly cusped periphery of an aperture in the inner sleeve when such inner sleeve is likewise retained within the outer sleeve. A rear tumbler portion of the locking member has a forward projection with a recess or flat thereon, the recess being moved into registration with the slot in the hollow body when the key is operated.

Abstract: A locking mechanism for a cabinet enclosure is comprised of a locking member in reciprocable, captured engagement with a first of a plurality of side walls defining the enclosure, a latch support disposed within the enclosure, and a latching member borne upon that support for operative engagement with the locking member. Also provided is a panel support member in pivotal, depending engagement from the latch support for supporting a side wall of the enclosure when the same is raised to an access position.

Abstract: A household refrigerator door is locked in its closed position by a latch, which is rotatably mounted in the door and moved between its locked and unlocked positions by a key. The latch cooperates with a catch, which is mounted on the cabinet exterior of the door gasket. The catch includes a mounting plate which is integral with a portion receiving the latch. The mounting plate is secured to a wall of the cabinet by screws extending through slots in the mounting plate, through elongated holes in the wall of the cabinet and finally into threaded holes in a nutstrip. The slots enable the mounting plate to be adjustable in one direction, and the elongated holes enable movement of the catch in a second direction orthogonal to the first direction.

Abstract: A fuel cap is provided for threaded engagement with a vehicle fuel tank inlet in which a locking mechanism employs a key to move a lug from a stable locking position to an unstable unlocking position. The key may be immediately removed and the fuel cap may be threadably disengaged from the inlet and thereafter reengaged therewith once fuel has been introduced into the tank. The key need not be employed to lock the fuel cap, since once manipulation of the fuel cap to threadably engage the cap with the fuel inlet is initiated, the lug is moved from the unstable unlocking position to a stable locking position. The cap may thereafter not be threadably disengaged from the fuel tank inlet unless a key is employed to again shift the lug to the unstable unlocking position. A clutch mechanism is employed to prevent overtightening of the cap and consequent damage to the cap or fuel tank inlet, yet allow sufficient tightening to effectuate a vapor tight seal between the cap and the inlet.

Abstract: An access door locking mechanism for a coin operated apparatus wherein the housing for the apparatus is formed having an opening in a wall portion to provide access to said apparatus. A door is mounted on the housing and is disposed for movement from a releasable position to a secured position relative to the housing wall opening. The door and the housing are each provided with members adapted to interengage upon movement of the door to its secured position for retaining the door in place. The door and housing are further provided with complementary interfitting portions for making the outer surface of the door flush with the outer surface of the housing when the door is in its secured position. The door is further provided with an outwardly projecting irregular shaped portion adapted to receive a wrench having a complementary irregular shaped opening for selectively moving the door between its releasable and secured positions.

Abstract: A locking gas cap for a threaded filler neck having a sealing lip extending peripherally about its axis, the cap comprising a closure member threaded to engage and close the filler neck, a gasket on the closure member for engaging and sealing against the lip, an outer shell providing a hand grip secured to the closure member for rotation thereon, a key-operated lock and at least one lock-actuable bolt connected to the shell for rotation therewith. A race is disposed for rotation in the shell, and a driving connection is provided between the race and the closure member which is torque limited in the direction which advances the closure member on the filler neck and positive in the cap removal direction. A spring is provided for yieldably urging the bolt into engagement with the race. The spring cooperates with a plurality of engaging pockets in the race to provide a positive driving connection between the shell and race in the direction which advances the closure onto the filler neck.

Abstract: The anti-theft plug or cap for the filler of a gasoline tank comprises a plate with a tapping corresponding to threading on the filler, a body rotatable in respect of the said plate, a securing element serving to render the said body integral with the said plate, and a cylindrical lock mounted in the said body and controlling the said securing element. The securing element rotatable with the rotatable body and serving to render the body fixed in relation to said plate, is provided with an elastically deformable arm resiliently removable from the axis of the plug under the action of the said lock, while its free end, when the arm has undergone no deformation, is disengaged from said teeth, although it engages them when the arm has undergone deformation.

Abstract: A low-profile locking cap for a threaded filler neck includes a closure member for engaging and closing the neck, a shell providing a hand grip and including a key-actuable lock, and a race disposed for rotation between the shell and closure. The race includes axially inwardly opening pockets, and the closure includes flexible pawl fingers for engaging the pockets to provide a driving connection between the closure and race which is positive in the cap removal direction and torque-limited in the cap advancing direction. The race also includes a set of peripherally spaced, radially inwardly projecting teeth, and the shell is molded to provide a pair of flexible drive fingers for engaging the peripherally spaced and radially inwardly projecting teeth to provide a driving connection between the shell and race which is positive in the cap advancing direction and torque-limited in the cap removal direction for free ratcheting of the cap when it is in position on the filler neck and locked.