Abstract: A wheel chock contains a first wheel-restraining member, a frame with a gear rack attached to the first wheel-restraining member, a second wheel-restraining member, a gear assembly attached to the second wheel-restraining member, and an elongated handle member. The gear assembly has a gear housing with an opening through which the frame passes and also has a releasably ratcheting pinion gear that engages the gear rack. A user holding the handle member from a standing position can restrain a wheel by moving the wheel chock into position on the wheel and then reducing the distance between the first and second wheel-restraining members so they touch the wheel, and can release the wheel by increasing the distance between the first and second wheel-restraining members and then removing the wheel chock.

Abstract: A combination of a mechanically driven chock and a truck trailer including a wheel chock having a bottom face, a top face, a slanted front face, and an arcuate rear face, the front face having a plurality of threaded bores formed therein, wherein a width of the wheel chock is equal to that of two wheels of the truck trailer in side-by-side relationship; and an air cylinder having a fixed portion coupled to an outer face of the mounting plate via a pair of brackets and situated at an angle of 45 degrees with respect to the horizontal and a movable portion having a length equal to that of the fixed portion and an inboard end slidably situated within the fixed portion and extendible rearwardly and downwardly only upon the actuation thereof, the movable portion of the air cylinder further including a square planar plate coupled at a central extent thereof to an outboard end thereof in perpendicular relationship therewith, the plate being screwably coupled to the front face of the chock, wherein a portion of the m

Abstract: A device for blocking wheels of a vehicle, including elongate guide means, a wheel block carrier guided slidably in a lengthwise direction of the guide means and including a wheel block guided for movement transverse relative to the lengthwise direction, and control and drive means for moving the wheel block carrier relative to the guide means and for moving the wheel block relative to the wheel block carrier.

Abstract: Wheel skids are utilized to load, maintain, and thereafter unload vehicles to and from a container. Preferably, paired separate skids are designed to receive and trap the front steering wheels of a vehicle. Each skid includes a wheel supporting surface, and a forward bumper surface for stopping the forward rolling wheel. A rear upward folding ramp first permits the wheel of the vehicle to roll onto the skid and then folds upward for trapping the wheel. Trapping of the wheel occurs between the forward bumper and rear upward folded ramp. Side skid members contact the side of the container during sliding movement of the skid on the bottom of the container. In operation, the skids are placed just inside the front of a container, usually just beyond the end of an auto loading ramp that allows the vehicle to easily enter the container at the front steering wheels. The vehicle is started, battery may be disconnected, hood closed, and driven onto the skids until collision with the forward bumpers occurs.

Abstract: A vehicle wheel lock which is adjustable to accommodate various sized wheels on a vehicle and/or the steering wheel of the vehicle, and includes a two-part base, one-part insertable into the other part, two arms extending in a U-shaped fashion from the base, the distal ends of the U-shaped arms curving inward toward each other, with a serrated locking bracket positioned internal to and attached to one of the insertable bases, and a cylinder-type lock positioned internal to and attached to the opposed base, wherein the width of the lock, that is the distance between the opposed arms, may be adjusted for placement of the lock around tires of various sizes and on to a wheel, and/or a steering wheel, and for placing the lock in a position whereby the lock may be locked, thereby immobilizing the vehicle wheel or steering wheel and preventing theft of the vehicle.

Abstract: A vehicle immobilizing device adapted for removable interconnection to a vehicle wheel assembly for temporarily immobilizing the vehicle. The vehicle immobilizing device utilizes an outer arm, an inner arm, an engagement dome, and a securing mechanism which in combination provides engagement to the vehicle wheel assembly in at least four distinct locations to prevent unauthorized removal.

Abstract: A locking device (1), especially suitable for clamping onto motor vehicle wheels. It consists of a generally elongate lock case (2) and a first and second grip arm (3, 4), each connected to one end of the lock case. The grip arms (3, 4) are designed to grip from opposite sides at least partly around the edge of the wheel so that the lock case (2) lies essentially parallel to the axis of the wheel. The first grip claw (4) is slideably received in the lock case (2). The novelty of the invention resides in that in the lock case (2) there is provided a toothed bar (11) connected at one end to one of the grip claws (3), which, when the lock is in a locked state, engages with a check pawl (14). The check pawl (14) is operatively connected to the second grip claw (4). The lock case may also be equipped with a spring (17) for drawing together the two grip claws (3, 4).

Abstract: In combination with a barrier for retaining shopping carts around a parking lot, a vehicle entrance includes a roadway having a surface and a plurality of geometric objects protruding upward from the surface for entrapping a wheel of a shopping cart when the wheel of the shopping cart is pushed over the geometric objects. Another embodiment includes a water trap in the roadway. All of the embodiments of the invention help retain shopping carts within a confined area such as a parking lot.

Abstract: A parking device for parking a handtruck on the floor of a truck or like vehicle so as to prevent accidental movement of the handtruck on the floor during movement of the truck. The device includes a frame which is comprised of two frame parts, of which the first part is longer and thicker than the second part and is beveled on one side for facilitating movement of a handtruck onto the parking device. The first part extends at both of its ends beyond the second part which is joined generally at right angles to the first part inwardly from the ends of the first part. A cavity defined by the second part of the frame receives the wheels of the handtruck, whereas the upper surface of the first part supports the remainder of the handtruck and thus the general weight thereof.

Abstract: A flexible molded block for immobilizing the wheels of an in-line roller blade skate which is portable and easy to use. The device is a flexible chock "10" with a cavity "12" in the center which cradles a wheel of an in-line skate that it is installed on. The device immobilizes the skate wheel and removes the stress and weight from the skate wheel, axle, and bearings by resting on a frame assembly "18" of a skate. The wheel chock cavity lip "12a" that is produced by using a in-line roller blade skate wheel when making the molded chock, keeps the chock on the skate, preventing it from slipping or sliding off. The device is also small, light weight and easy to store when not in use.

Abstract: The vehicle detention device disclosed includes a pair of stopper blocks, a locking means, a pair of chains and a cover unit. One stopper block is fixed to a guide shaft and the other stopper block can be movably displaced to accommodate the size of the object tire. Locking means prevents movable stopper block from being displaced away from contact with object tire maintaining stopper block contact with object tire on either side of tire at ground contact point thus preventing rotation. A pair of chains is used to fasten object wheel to detention device when stopper blocks are placed in the engaged position. Key operated cover unit conceals access to mechanical components needed to release the detention device from the fastened condition thus preventing unauthorized removal of the device from the restrained vehicle.

Abstract: An immobilizing device 12 is connected to a wheeled vehicle such as a trailer 12 or caravan 52 by a connection. The device 12 comprises a wheel clamp to be secured to or about a wheel 14,53 of the wheeled vehicle. The connection in one embodiment comprises a rod 38 which is slidable and rotatable in two bushes 40 on the chassis 42 of the vehicle 10, the rod 38 being transverse to the vehicle and being connected to a bar 34 which is pivotally connected to the wheel clamp. In another embodiment the connection comprises a rod 70 which is slidable forwards and backwards in relation to the vehicle in two bushes 72 on the vehicle chassis and is connected to the wheel clamp.

Abstract: Vehicles without their own brakes carry wheel chocks, which are releasably fixed in a holder which can be fastened on the vehicle.

Abstract: A wheel chock for tandem wheels including upper and lower spaced apart wedge members sized and configured for wedging engagement with facing surfaces of the tandem wheels. A threaded rod joins the upper and lower wedge members. The threaded rod is connected to each of the upper and lower wedge members such that rotation of the rod in a first prescribed direction causes translational movement of each of the upper and lower wedge members along the rod and toward one another, and such that rotation of the rod in a second prescribed direction causes translational movement of each of the upper and lower wedge members along the rod and away from one another. At least one of the upper and lower wedge members includes a longitudinal bore formed therein, a transverse bore formed therein and intersecting the longitudinal bore, and a pivot nut having a body and a threaded nut bore formed therethrough.

Abstract: A wheel-activated vehicle restraint system including a support structure disposed beside the path of the vehicle approaching the dock, and including a guide member extending away from the dock face, and an elevated supporting member. A trigger assembly is operatively connected to the guide member, and initially engages the wheel of the vehicle as it rolls toward the dock. A locking arm operatively engages the supporting member to move from a stored position to a chocking position on the wheel as the wheel engages the trigger and moves it toward the dock. A trolley assembly operatively connects the trigger assembly and the locking arm, the trolley assembly and the locking arm being connected at a connection point.

Abstract: Two light weight, movable ramp members having upper depressions are provided for supporting a pair of wheels of a motor vehicle in an elevated position in a transport container. The two ramp members are spaced apart with two spacers to hold them against the side walls of the container. At least three pairs of the ramp members may be provided to support the front or rear wheels of three vehicles. Spacers are provided for spacing the front pair of ramp members from the front wall of the container. The two ramp members may be used to support the front or rear wheels of a motor vehicle in a container by locating the two members on the floor of the container; using the spacers to maintain them at desired positions; and moving the front or rear wheels of the motor vehicle up the two ramp members into their upper depressions.

Abstract: A train brake device including a chocking member dimensioned for positioning around a train wheel is disclosed. A gear assembly is secured to a rear face of the chocking member. A rail clamping assembly is positioned beneath a rail of a train track and extends upwardly through the gear assembly for engagement therewith. A pawl is secured within the gear assembly for selective engagement therewith. The main usage of the present invention is for positioning around work equipment. When in place around a train wheel, the present invention will prevent injury to train crew members by blocking and preventing the wheel from rolling. This is especially important when no cabooses are present and crew members must place flashing red lights on the rear of the train.

Abstract: The portable wheel immobilizing device is comprised of two parallel covers which are attached together to angularly rotate in opposite directions about an axis perpendicular to both covers. A pair of parallel arms is attached to each cover. The arm pairs intersect at the aforesaid axis and each arm pair rotates with its cover around the aforesaid axis between a position in which all the arms are parallel to each other to a position in which the arm pairs are angularly disposed to be substantially perpendicular to each other but in which the arms in a pair remain parallel. The arms in a pair are movable in opposite directions between a length in which their combined span is at a minimum to allow compact storage of the device to a length in which their combined span is at a maximum to allow the arms to engage the outside periphery of the wheel to allow the arms to surround the wheel.

Abstract: An integrated device for securing a wheelchair in a position on a floor is formed of a frame-like box for mounting beneath the floor and within an opening therein. The box mounts for rotation about parallel horizontal axes, a pair of laterally spaced, horizontally extending parallel flaps which are rotatable from a position flush with a pair of openings within a horizontal floor plate receiving the flaps to raised, oppositely oblique positions forming a V. A vertically upright cover extends from one end of the floor plate and mounts a pair of push button controls on an upper surface. A vertically upright actuator is fixedly mounted to a face of the upright cover and has a projectable and re tractable plunger coupled to a flap locking member which carries an axial projection projectable into an axial bore of a retaining cylinder fixedly mounted to the box.

Abstract: A single locking point vehicle security device having U-shaped arms which are adjustable in width to accommodate the tire width of the vehicle. The arms are non-rotatably mountable in a central body over the tread of a tire thereby rendering the wheel inoperable. The central body renders the wheel mounting to the vehicle inaccessible. The point of adjustment of the width of the U-shaped end of the arms and the attachment point of the arms to the central body are also inaccessible when the device is mounted and locked onto the wheel thereby making removal difficult. A second set of arms may be installed in the central body in place of the security arms. This second set is fabricated to have a low profile and traction enhancing surface over the tread to improve maneuverability of the vehicle on a slippery surface.

Abstract: The apparatus immobilizes a wheel of a vehicle. A chock is connected to a facing bar. Also connected to the facing bar, spaced away from the chock is an engaging bar. The engaging bar has a first, generally elongated straight section and a second section that is shorter than the first straight section, and that is joined to one end of the first section such that the angle between the first section and a portion of the second section is between -45.degree. and +45.degree., preferably 0.degree.. The engaging bar is attached to the facing bar, such that the first straight section is generally perpendicular to the facing bar, the engaging bar is movable along its first section relative to the facing bar and the second section is rotatable around an axis coaxial with the first section. A lock locks the engaging bar at a desired position relative to the facing bar.

Abstract: A stand-alone centering device is provided for residential and commercial parking spaces to assist a motor vehicle operator in centering the motor vehicle in the space, the device consisting of a resilient floor marker which can be adhesively secured at or near an entrance end of the parking space and positioned such that the motor vehicle operator must align the left or right front tire of the vehicle to roll over the marker followed by the left or right rear tire of the vehicle in order to establish proper alignment of the vehicle in centered relation to the space. An additional marker may be positioned in predetermined relation to the front end of the space to indicate the forward end limit of travel.

Abstract: A wheel chock assembly for chocking the wheel of a railroad car including a chock having at least one inclined ramp surface, a bottom surface, and opposite side surfaces. Each one of the opposite side surfaces of the chock contains a bore. A positioner presents an elongate arm with a retriever at one end thereof. The retriever has a projection which is receivable within a selected one of the bores in the opposite side surfaces. When the projection engages a selected one of the bores, the positioner can carry the chock for the selective positioning of the chock.

Abstract: An adjustable chock for radio-controlled model airplanes, having two affixed restraining members that can adjustably seat against the front and rear side of model airplanes landing gear, thus preventing its unintentional movement.

Abstract: An antitheft device for a motor vehicle comprising a base adapted to rest longitudinally upon a tread of a tire on the motor vehicle. A facility is for securing the base to the tire. A structure is connected between the base and the securing facility for retaining the tire in a stationary position upon a road surface, so that the tire will not rotate, to prevent the motor vehicle from being driven away.

Abstract: A vehicle detention device provides a pair of stopper blocks, where one of the stopper blocks moves on a guide shaft relative to the other stopper block secured to the guide shaft. A locking device is provided in order to prevent the movable stopper block from shifting away from a tire so that both the stationary and movable stopper blocks remain in contact with the tire at both sides of ground contact point to prevent rotation of the wheel with the tire mounted thereon. Using a pair of chains, the wheel is secured and placed under detention with the stopper blocks closely held in contact with the tire. Since the mechanical components necessary for releasing the tire and wheel are fully concealed by a key-actuated cover unit, no one can readily remove the vehicle detention device from the restrained vehicle without operating a proper key, thus securely detaining the vehicle.

Abstract: A pair of wheel safety chocks for blocking the rear wheels of a vehicle having a boat trailer or the like in tow, the safety chocks being connected together by a rope which, in use, is positioned so that it passes over the trailer hitch and between it and the vehicle bumper. So positioned, the rope is long enough to allow the chocks to block both rear wheels simultaneously. Moreover, without anyone repositioning either the chocks or the rope, the rope interacts with the vehicle bumper, as the vehicle is being driven forward, releasing the safety chocks and pulling them out of the path of the wheels of the oncoming trailer.

Abstract: A wheel-actuated vehicle restraint device is provided for restraining at least one wheel of a vehicle during loading and unloading thereof. The vehicle restraint comprises a lock assembly comprising an actuation assembly for initially engaging the wheel of the incoming vehicle and a lock assembly for chocking the wheel in response to engagement between the wheel and the actuation assembly. The lock assembly is operatively connected to the actuation assembly at a connection point such that the connection point is selectively positionable in response to the dimensions and location of the wheel for insuring that the lock assembly engages a bottom portion of the wheel and moves along the peripheral surface of the wheel to a chock position. In one embodiment, the actuation assembly comprises a trigger assembly disposed to engage the wheel and a trolley assembly operatively connecting the lock assembly and trigger assembly.

Abstract: A system for loading and unloading a vehicle, including: a vehicle actuated wheel chock positioning device for at least one tire of such a vehicle which is rotatable on a treadway between an initial position and a plurality of operating positions, the chock positioning device including a mechanism engageable by such tire at the initial position and movable with the tire as it rolls on the treadway, a chock positionable behind the tire when the mechanism is in any of the operating positions in response to engagement of the mechanism by the rolling tire, and a controllable lock capable of selectively locking the chock in a chock position behind the tire corresponding to one of the operating positions, the system, in one preferred embodiment further including a leveling ramp carrying the chock positioning device with a device to vertically position the device and a vehicle chocked thereby to a selectable vertical position.

Abstract: The drive screw system comprises a drive screw and a drive nut adapted for driving a cooperating member such as a vehicle restraining device between the proximal and distal ends of the drive screw. At least one bearing assembly is mounted to a track for supporting the drive screw and automatically moving between the proximal and distal ends of the drive screw in response to the drive nut to automatically maintain a predetermined maximum unsupported length of the drive screw. Each bearing assembly comprises two bearing supports connected at a fixed length and which are coaxially disposed relative to each other. In one embodiment, the length of each bearing assembly are integral multiples of the smallest fixed connecting length and the drive screw has stationary bearing supports disposed at the proximal and distal ends wherein the distance between the stationary supports is (n+1)*L where n is the number of bearing assemblies and L is the length of the shortest bearing assembly.

Abstract: A wheel-locking device has a nut shield (13) with a wheel-bolt orifice (17) on an attachment-plate (18) end of the nut shield. The nut shield is positioned on a wheel bolt (14) between a wheel (5) and a wheel nut (15) that is tightened onto the wheel bolt. Walls (37, 39) of the nut shield have lock-rod keyholes (12, 51) that are sized and shaped to receive a keyhole shaft (11) having lock extensions (19, 40, 49, 50) positioned in line with keyhole bays (20) in the lock-rod keyholes. Then a lock rod (6) can be rotated to a locking position in which the lock extensions are not in line with the lock bays of the lock-rod keyholes. In this locking position, the lock rod is then locked onto a wheel clamp (1) that hooks over a wheel.

Abstract: A circumferential chock including opposing jaw members each having a chocking wall for engaging a wheel integrally joined by a hinge for providing movement of the jaw members in relation to each other between an open position for receiving a wheel and a substantially closed position circumferentially engaging the chocking walls with the wheel for braking a wheel against rolling, swivelling, and sliding.

Abstract: A locking wheel chock, for positioning between adjacent tandem wheels on spaced axles of a vehicle having no independent braking system provides upper and lower pairs of wheel contacting blocks connected in spaced relationship by a telescoping body assembly. The telescoping body assembly carries a rack on one portion and a fastening lever with a partial pinion on the other portion to engage the rack to adjust the length of the body assembly to move the wheel blocks into and out of fastening engagement with the tandem wheels for preventing relative rotation. Each wheel block is independently pivoted to allow tangential contact with the adjacent tire tread. A lock prevents movement of the fastening lever to maintain positioning and prevent tampering with the wheel chock when the fastening lever is in fastening position. A first species of wheel block provides paired adjustably spaced blocks on each side of the center line of tandem wheels.

Abstract: A wheel lock device including a shoe. The shoe has sides, a top with a central aperture wherethrough a wheel strut may extend. The shoe has a generally planar bottom with an anti-slide portion that precludes the wheel lock device from sliding along the supporting surface. The shoe has dimensions such that a strut-mounted wheel assembly of a vehicle may be enclosed therein. The shoe is separated vertically into two equal hingedly connected parts which allow it to be opened for receiving the wheel assembly, or closed for encasing the wheel assembly, whereby precluding free rotation along the supporting surface. Included is a lock that allows the two parts of the shoe to be releasably secured in the closed position. Locking the two parts prevents removal of the shoe from the wheel assembly. Removably connected to the lock is a key. The key is rotated in the lock by a user for release of the lock to permit the shoe to be opened for removal from the wheel assembly.

Abstract: A collapsible wheel chock apparatus having a main body member with a preferably concave wheel engaging surface and a swing arm member pivotally secured to the main body member which includes a locking slot located therein with preferably a locking tab extending into the slot. A cross bar member is pivotally secured to the main body member and is movably secured and retained within the slot defined in the swing arm member. The cross bar member is adapted to be locked adjacent one end of the locking slot by a spring bias locking mechanism to facilitate holding of the wheel chock in the raised position for abutment against a vehicle wheel. The cross bar member is movable to the opposite end of the locking slot to allow the swing arm member and cross bar member both to be collapsed against the main body member for storage in this collapsed position.

Abstract: A device for securing a wheel of a wheeled vehicle to a transport vehicle. The device has a wheel receiving channel pivotably attached to a frame and a locking apparatus. The locking apparatus automatically releasably locks the channel to the frame when the wheel of the vehicle is driven into the channel. The device is also removably slidably mounted within a brace which in turn is mounted to the transport vehicle such that the device may be easily removed from the transport vehicle.

Abstract: Golf car locking apparatuses having a restraining member (1) positioned on a seat (2) of a golf car (3) to prevent access to power-storage batteries (4) and extended from a seat upright member (5) behind the seat (2) and an attached member (7) extending from the seat restraining member (1) to a locking position on a steering wheel (8). Wheel-locking structure is provided optionally in addition with a wheel-lock clamp (9).

Abstract: A collapsible wheel anchor having a ground (G) penetrating blade (10) attached to an upper support member (A) by removable attaching means, A base support member (B) is temporarily engaged at the lower portion of upper support member (A) by two forward protruding tabs 7 passing through corresponding apertures, Upper support member (A) and lower support member (B) are linked at each end by two elongated struts (28) and (26) pivotally attached by hinging means forming a wedge-shaped structure of open form for receiving a vehicle wheel (15).

Abstract: A wheel securing device, comprises L-shaped and U-shaped hooks extending from an articulated central platform positioned across the full diameter of the tire and wheel, wherein: (i) base legs of a pair of L-shaped hooks attach to and extend from the central platform into contact with the tread of the tire and (ii) radial legs of the L-shaped hooks contact the interior side wall of the tire. An U-shaped hook is also attached to the platform via a planar arm, and includes longer and shorter legs contacting opposite side walls of the tire, and a base leg in contact with the tire tread. Since the planar arm is pivotally attached to the top wall of the platform, movement of the arm carries the U-shaped hook into and out of contact with the tread of the tire to provide convenient attachment and removal of the securing device relative to the tire.

Abstract: A vehicle washing aid for positioning underneath a vehicle tire to elevate the tire relative to a ground surface for washing and dressing of the tire and for precluding the catching of a water hose between the tire and the ground surface.

Abstract: A wheel chock for aircraft comprising a first inverted U-shaped channel member which includes a horizontal upper surface and side surfaces extending downwardly therefrom to form vertical side edges. A first side panel is secured to one side edge of the first channel member and extends horizontally in a first direction with at least one locking hole extending therethrough. An aperture extends through each side surface of the first channel member in axial alignment about a horizontal axis. Both apertures are of a common predetermined diameter. A second U-shaped channel member includes a horizontal upper surface and side surfaces extending downwardly therefrom to form vertical side edges. A second side panel is secured to one side edge of the second channel member and extends horizontally in a second direction opposite from the first direction with at least one locking hole extending therethrough adapted to be positioned in alignment with at least one of the holes of the first side panel.

Abstract: A hose guide and storage apparatus (10) for both preventing a hose (200) from becoming wedged between a tire (100) and the pavement as well as providing a storage vessel for the coils of the hose (200) when the hose (200) is not in use; wherein, the apparatus (10) comprises a flat base member (20) formed integrally with a raised and tapered arcuate collar member (30) having upper (31) and lower (33) lip portions separated by a variable height intermediate portion (32).

Abstract: A vehicle parking accessory for protecting vehicles against damage from adjacent vehicles and for deterring theft of the vehicle having a rectangular tubular frame connected to two wheel chock members for front and back tires and a locking apparatus to prevent disassembly of the accessory. The rectangular tubular frame is adjustable to the length and height of a vehicle by a set of turnbuckles located on both the horizontal and vertical frame members. The vehicle parking accessory is further provided with a side protector panel having an interiorly situated shock absorbent cushion which is used to prevent damage such as dents, dimples and scratches to the side of equipped vehicles.

Abstract: A wheel-block lock has a chock on a chock end of a lock rod that is lockable in a lock sleeve. The lock sleeve is attached to a lug-cover shaft with a lug cover that is lockable onto a locking foot that is attached to a wheel with a lug nut. A single lock is employed to lock all parts of each lock unit together centrally. The wheel chock in select forms is positioned to be supported against a tire on the wheel to prevent rotation of the wheel. Two lock sleeves can be used on the same lock rod for attachment to two lug bolts. Either a padlock or a tumbler lock can be used for locking one or two wheel-block locks onto a wheel.

Abstract: A tire chock for tandem wheels, for preventing unwanted movement of tandem wheel vehicles. The tire chock for tandem wheels comprises upper and lower opposing wedges which are sized for wedging engagement with facing tire tread surfaces of the tandem wheels to stop wheel rotation. Each wedge has arcuate diverging engagement surfaces generally conforming to the curvature of the tire tread surfaces. A threaded bar joins the upper and lower wedges and connects thereto so that rotation of the bar moves the wedges toward and away from each other. Also included is a handle connected to the bar for rotating the bar for moving the wedges toward and away from each other. There is also a member for locking the bar against rotation which comprises a first tab fixedly radially connected to the threaded bar and a second cooperating tab fixedly connected to the upper wedge. Both tabs have a lateral hole wherethrough the shackle of a padlock may be inserted simultaneously whereby preventing rotation of the threaded bar.

Abstract: An automatic push button wheelchair securement device for mounting on the floor of a wheelchair transporting vehicle.As the wheelchair occupant rolls the wheelchair to the designated location on the securement device; by pressing a push button the holding flaps of the securement device will rise by means of two air cylinders to contact the rear large wheels tangentially, hence, providing securement for the chair and preventing it from rolling forward or backward in case of sudden stops or collision of the vehicle.The holding flaps, in another embodiment may be comprised of four individual holding flaps self adjusted and positioned by means of electrical linear actuator and infrared sensing device.

Abstract: An apparatus for securing a wheeled cart to a specific location in a parking lot comprises an elastomeric body member the body member has a top surface which includes inclined surfaces and the depression. Corner shoulders feature rounded outwardly facing surfaces and help direct swiveled wheels of shopping carts away from the corners and up the inclined surfaces into the depression. The body member is attached to the packing lot surface by means of butyl rubber mastic adhesive. The inclined surfaces can include slots to remove water from the depression.

Abstract: A clamp assembly to effectively lock and or prevent a wheel on a trailer or like wheeled vehicle from rotating to in turn prevent the unauthorized movement or theft of the trailer including two clamp members movable towards and away from one another and wherein each clamp member is disposed in overlying and or confronting engagement with either the front face or rear face of the wheel. The two clamp members may be positioned and locked into an operative position such that the various components of the two clamp members adapted to collectively surround a peripheral or tread portion of the wheel are positioned such that rotation of the wheel is impossible due to the fact that the clamp assembly will eventually come into contact with the undercarriage of the vehicle upon attempted rotation of the wheel through unauthorized movement of the trailer.

Abstract: A wheel lock is disclosed for securing to the wheel of a vehicle to impede rotation of the wheel to prevent theft of the vehicle. The wheel lock comprises a clamp having opposed arms which are movably coupled together. Each arm carries a projection extending inwardly with respect to the other projection to form an opening therebetween. The projections being carried by the arms can be moved apart to a first position in which the opening is sufficient to be received over the tire and rim of the wheel and the projections can thereafter be moved inwardly to a second position in which the opening between the projections of the opposed arms prevents the clamp from being disengaged from the wheel. The wheel lock further comprises position locking structure for selectively releasably locking the projections of the clamp in the second position to prevent the wheel lock from being disengaged from the wheel.

Abstract: A blocking structure arranged for engaging spaced adjacent wheel members of a tandem wheel organization is provided, such that a ratcheting block member is arranged for movement along a gear rack, with the ratcheting block having a support saddle mounted thereon, the support saddle including spaced spanning plates to engage the adjacent wheels preventing their rotation.