Abstract: The invention relates to the technical field of vehicle maintenance equipment, in particular, to a stacked vehicle ramp. The vehicle ramp includes a base frame. One end of the base frame is fixedly connected with a sloping plate, and both sides of the base frame are fixedly provided with a side plate. The other end of the base frame is fixedly connected with a rear plate, and a higher end of the sloping plate is fixedly connected with a top plate that is horizontally arranged. The sloping plate, the top plate and the rear plate are all fixedly connected between the two side plates, and one end of the top plate away from the sloping plate is fixedly connected to the rear plate. A first left groove and a first right groove are provided on the sloping plate, and the top plate is provided with a second left groove and a second right groove.

Abstract: A shipping container for a personal watercraft, in which a first and second pair of roller guides attach to a pallet for removably receiving a pair of trusses that support a personal watercraft thereon, the trusses movable between a first position for loading or unloading the personal watercraft and a second position for storing and transporting of the personal watercraft at an oblique angle. A method of containing a personal watercraft in a shipping container is disclosed.

Abstract: A vehicle leveling system includes a jack adapted to be mounted to a vehicle frame without modifying the vehicle frame. In a particular embodiment, the jack includes a first bracket adapted to urge against the bottom and side surfaces of a member of the frame and configured to be fastened to a member of the frame through a manufacturer-provided aperture in the frame. The jack additionally includes a second bracket to couple the first bracket to the jack. In a more particular embodiment, the first bracket includes a horizontal adjustment feature, and the second bracket includes a vertical adjustment feature.

Abstract: Stabilizing devices and methods of use for stabilizing spreading tools are provided. The stabilizing device includes a base having a first surface and a second surface, a first tower extending from the first surface having a first aperture formed therein, a second tower extending from the first surface having a second aperture formed therein, wherein the second tower is separated from the first tower by a tower span configured to receive a portion of the spreading tool, an engagement pin removably receivable through the first and second apertures, extend across the tower span, and configured to engage with a portion of a spreading tool, and a rail extending from the first surface and configured to stop movement of a spreading tool that is engaged with the engagement pin between the first and second towers.

Abstract: Disclosed is a mobile platform on which equipment is mounted. A structural frame for a platform used to transport equipment may include a bottom rail configured to rest on the ground, a top rail vertically offset from the bottom rail, a plurality of pillars extending between the top and bottom rails, a forward support point, and an aft support point, wherein the structural frame is configured to support a downward force on the bottom rail when the structural frame is suspended between the forward and aft support points.

Abstract: Provided is a conveyance system for an object and for conveying the object to a container mounted on a chassis of a trailer. The conveyance system includes a jack device that lifts the chassis from below, and a stage device arranged behind the jack device. The stage device includes a conveyance body on which the object is placed and conveyed, a stage on which the conveyance body travels, a mobile body supporting the stage and capable of movement in a front-back direction of the chassis, and a jack mechanism provided to the mobile body and that raises the stage from below to lift or lower the stage. The mobile body moves forward and the jack mechanism lowers the stage while the jack device raises the chassis, and the conveyance body travels on floor faces of the stage and the container in this state to convey the object to the container.

Abstract: An axle lifting implement lifts an axle from the ground. The axle lifting implement has a front side joined to a base resting point and an axle cradle. A first angular lift surface is joined to the base resting point and a second angular lift surface. A rear side is joined to the second angular lift surface and the axle cradle. In a first mode of operation, the axle cradle is immediately adjacent to the axle such that the second angular lift surface is on the ground. In a second mode of operation, the first angular lift surface and the base resting point are immediately adjacent to the ground and the axle is displaced the height from the ground further than the axle was displaced from the ground in the first mode of operation.

Abstract: The present invention provides a water control system with the reservoir level versatility of a weir stack and the relatively easy drainage of a water control gate. Multiple stack beams constrained between two opposed guide channels create a fluid reservoir having an incrementally adjustable fluid level. Increasing or decreasing the reservoir level is a matter of adding or removing one or more stack beams. To create an opening for draining fluid from any level of the reservoir, a picker mechanism captures at least one of the stack beams. By lifting the captured stack beam, and any stack beams atop the captured stack beam, the picker mechanism opens a gate at any level of the reservoir through which fluid may flow.

Abstract: An axle jack includes a support column extending along a longitudinal axis between a top end and a base end. An axle plate is coupled to the top end of the support column and a base plate including an upper surface and a lower surface is coupled to the support column base end. One or more gussets are arranged between the base plate upper surface and the support column and a handle projects from the support column at a position intermediate the top and base ends of the support column. Gripping protrusions are formed on the lower surface of the base plate.

Abstract: A torque wrench stand having an arcuate or curved surface for supporting the stand is described. The stand includes a generally semi-circular main body having a hub opening through which a torque wrench socket extension passes allowing the stand to be carried by the wrench from one wheel to the next. The hub is positioned off-set from the center of the stand along the straight upper edge of the stand. The stand supports the wrench via the extension held within the hub as the wheel lug nuts are removed. The stand pivots about the hub, thus allowing the arcuate surface of the stand to continuously adjust position as necessary so that the height of the hub from the ground matches the height of the selected lug nut from the ground and the stand easily adapts to the height of any lug nut.

Abstract: A jack stand for use with a power unit having a slide forward bridge for positioning by the jack stand; and having a pair of leveling pads with inner roller bearings thereon for engaging an upper lifting plate of the jack stand, and a bottom plate having openings therein for engaging a mobile rack for transporting the jack stands. The jack stand has the bottom plate with a series of telescopic frames extendable therefrom, and the upper lifting plate extending from the upper frame, having side flanges with a rectangular bottom surface thereon for engaging the roller bearing of the power unit. A pair of bumpers are attached to the lowermost vertical frame with one extending forwardly and one extending rearwardly (one of which is always positioned) for engaging the slide forward bridge, as the jack stand is loaded into the power unit.

Abstract: A lift assist device for assisting a user in lifting an item includes a base having a center portion and a side portion that is angled relative to said center portion, a support shaft extending upward from the center portion of the base, and a support platform rotatably attached at an upper end of the support shaft and rotatable about an axis that is generally parallel to a longitudinal axis of the support shaft. The lift assist device is tiltable between a loading position, where the side portion of the base rests on a floor or support surface and the support shaft is in a tilted orientation, and a lifting position, where the center portion of the base rests on the floor or support surface and the support shaft is in a generally vertical orientation.

Abstract: A retractable jack foot for a trailer hitch jack is disclosed, for rapidly raising and lowering the tongue of a trailer. The retractable jack foot solves multiple prior art problems discussed above in the “Description of Related Art,” such as: trailer hitch jacks not being long enough to reach the ground and still lift the trailer to a sufficient height (small distance travel); the laborious, time-consuming practice of cranking a trailer hitch jack all the way to the ground before finally causing lift in the trailer. In both cases, blocks of wood or other spacers are sometimes used to reduce the travel of the jack. The retractable jack foot of the present disclosure, solves those problems, by providing a “built in” block, or foot, pivotally attached to the bottom of the trailer hitch jack. The jack foot can be rotated into and out of position as desired, to quickly lengthen or shorten the jack.

Abstract: A nitride semiconductor light emitting device and a method of manufacturing the same are disclosed. The nitride semiconductor light emitting device comprises an n-type nitride semiconductor layer formed on a substrate, an active layer formed on the n-type nitride semiconductor layer, a p-type nitride semiconductor layer formed on the active layer, an undoped GaN layer formed on the p-type nitride semiconductor layer, an AlGaN layer formed on the undoped GaN layer to form a two-dimensional electron gas (2DEG) layer at a bonding interface between the AlGaN layer and the undoped GaN layer, and an n-side electrode and a p-side electrode respectively formed on the n-type nitride semiconductor layer and the AlGaN layer to be connected to each other. As a hetero-junction structure of GaN/AlGaN is formed on the p-type nitride semiconductor layer, contact resistance between the p-type nitride semiconductor layer and the p-side electrode is enhanced by virtue of tunneling effect through the 2DEG layer.

Abstract: A lift and support structure is provided for a lawn tractor which includes a frame with a center lift member secured to and separating a pair of wheel support members. Ramps are secured to the wheel support members to permit the front or rear wheels of the lawn tractor to be rolled onto or off of the lift and support structure. The center lift member is elevated above the wheel support members to permit a floor jack or other lifting mechanisms to be placed under the lift and support structure. A pair of support legs may be locked in a raised position to support the lawn tractor for safe and easy access to the underneath side of the tractor, and may be pivoted or folded to the side when the lift and support structure is in a lowered position.

Abstract: A rolling jack (10) for lifting, moving and holding vehicles (54) for transport repair and maintenance having two lateral side tubular members (12a,b) each with straight and arcuate sections, the side members being spaced apart and connected to each other by cross-members, a first cross-member (22) connecting the arcuate section and a second cross-member (34) to the straight section of the side members. The first cross member has a pin portion (44) for engaging an axle or other component of a vehicle. The second cross member has a sleeve (36) for inserting a leverage handle (42) for grasping by hands during the use of the rolling jack. An axle (58) having wheels (40a,b) on each end is affixed to a curved portion of the arcuate section of the side of the lateral side members on which the vehicle is supported when the rolling jack is used to move a vehicle as desired.

Abstract: A device and method is claimed for elevating a vehicle. The jack device has a frame with a first section and a second section that are joined together at a hinged connection. The first section and second section of the frame are supported by wheels. A spool is coupled to at least one of the wheels. A flexible element extends from the spool to an opposite point on the frame that is across the hinged connection. The flexible element winds around the spool and pulls the first section and the second section together while being wound. A support platform is carried by the frame and is elevated as the first section of the frame and the second section of the frame move toward each other.

Abstract: A lifting apparatus for small vehicles, including a frame assembly, a pair of fabric webs attached to the frame assembly, and a pivotable lift assembly with a pair of spaced-apart wheel holders for receiving and securing the forward wheels of a vehicle such as a lawn or garden tractor, golf cart, or the like. To use the apparatus, the operator positions the wheels of the vehicle on the webs, operably positions the forward wheels in the wheel holders, then drives the vehicle over the webs while the lift assembly pivots upwards. The weight of the vehicle holds the webs in place on the ground, thereby causing the frame and lift assemblies to lift and pivot, raising the apparatus from a first stable position (the “down” position) to a second stable position (the “up” position) where the undercarriage of the vehicle is accessible for servicing and maintenance.

Abstract: A lifting apparatus for small vehicles, including a frame assembly, a pair of fabric webs attached to the frame assembly, and a pivotable lift assembly with a pair of spaced-apart wheel holders for receiving and securing the forward wheels of a vehicle such as a lawn or garden tractor, golf cart, or the like. To use the apparatus, the operator positions the wheels of the vehicle on the webs, operably positions the forward wheels in the wheel holders, then drives the vehicle over the webs while the lift assembly pivots upwards. The weight of the vehicle holds the webs in place on the ground, thereby causing the frame and lift assemblies to lift and pivot, raising the apparatus from a first stable position (the “down” position) to a second stable position (the “up” position) where the undercarriage of the vehicle is accessible for servicing and maintenance.

Abstract: A vehicle side tilting apparatus having strap-on wheel rockers to attach to wheels at one side of a vehicle and lift structure to elevate the other side of the vehicle and to roll the vehicle on the wheel rockers until the raised side of the vehicle is upright or slightly over center, where it is held even after removal of the lift structure and during movement of the tilted vehicle.

Abstract: A vehicle jack which operates by leverage using the motion of the vehicle to lift an axle of the vehicle into the air. The jack has an outer tube which telescopes over an inner tube, and is adjustable for height. A base plate attached to the tubes grips the road surface with a rubber surface or with optional spike projections. An axle contact surface partially surrounds the axle, or is bolted with a U bolt to the axle.

Abstract: A tool for and method to facilitate the replacement of wheels on track-and-wheel vehicles and equipment by lifting the track from the road-wheels in a quick, safe and efficient manner. A tool with an elongated section and two forked ends, each fork having a long prong and a short prong, the long prongs of both ends not being on the same side of the tool. In operation, one forked end is placed in notches in the lower track, and the other forked end is placed in notches in the upper track. The vehicle is then driven in a direction so that the tool acts as a wedge lifting the upper track off of the road wheel.

Abstract: A commercial mower support stand includes a cradle at its top that is adapted to engage a lifting bar that is secured to the front or rear end of a lawn mower, golf cart, or other light vehicle. The cradle is supported by a plurality of upstanding rigid legs that are secured at their respective lowermost ends to a base plate. A pair of laterally spaced apart support legs support a forward end of the base plate and a pair of laterally spaced apart wheels support the rearward end of the base plate when the stand is in its upright position on a support surface. A tube mounted at a predetermined angle to the base plate slidingly receives an elongate leverage handle that is used to manipulate the stand as needed when lifting and lowering a preselected end of a light vehicle. The stand includes storage receptacles for the leverage handle, replacement mower blades, a lubrication gun, or other items and tools.

Abstract: A vehicle side tilting apparatus having strap-on wheel rockers to attach to wheels at one side of a vehicle and lift structure to elevate the other side of the vehicle and to roll the vehicle on the wheel rockers until the raised side of the vehicle is upright or slightly over center, where it is held even after removal of the lift structure and during movement of the tilted vehicle.

Abstract: A lift jack is provided for use with a vehicle having a structural member on the underside of the vehicle, which structural member defines a transverse rotational axis. An elongated body member defines a longitudinal axis, and has a top end portion and a bottom end portion. The longitudinal axial length of the elongated body member is greater than the height of the transverse rotational axis above the ground. The bottom end portion has a radiused lifting surface and a generally planar foot extending contiguously from the radiused lifting surface, toward a second lateral edge of the bottom end portion. The elongated body member may be rotationally mounted on the vehicle by attachment of the top end portion to the structural member.

Abstract: A screw jack (20) includes a stand (21) which houses a side gear (58) which, when rotated, turns a bottom gear assembly (67). An inner screw (73) is connected to the bottom gear assembly (67) and thus turns therewith. Because of an interaction with an outer screw (77), rotation of the inner screw (73) initially causes a tube assembly (24) to move axially relative to a hexagonally shaped sleeve (23). A hex nut (81) is attached to the lower end of the tube assembly (24) to prevent rotation of the tube assembly (24). The nut (81) threadably engages the outer screw (77) and at one stage during the use of the jack (20), the nut (81) also engages a shoulder (82) of the sleeve (23) so that upon continued rotation of the screw (73), the tube assembly (24) and sleeve (23) move axially together. A load bearing assembly (25) is carried at the top of the tube assembly (24) and is adapted to be positioned under the frame or other component of a vehicle to be lifted.

Abstract: The present invention provides for a jack device that will easily and quickly elevate a vehicle. The jack of the present invention is unitized to provide for the structure to be one piece and consists of a main arcuate member having a first end and a second end. A semi-circular pivot is located and the second end and includes a stop that extends upwardly from the pivot. This semi-circular pivot will receive an axle of a conventional vehicle while the stop maintains the axle within the pivot. An edge or handle extends from the pivot to the second end of the arcuate member. Flanges are attached perpendicularly on the semi-circular pivot, main arcuate member and the edge. The flange attached to the arcuate member increases in width from the first end to the second end. The second end is flat and provide for it to act as a stop.

Abstract: The pin pulling assembly includes an active member which is engageable to a pin, the active member comprising a handle having an increasing radius spiral configuration, the radius increasing from a center pin engaging vertex stud. Further, the assembly includes a plurality of passive stud engaging collars for use with the active member when the pin has a flat head. By rotating the active member, the increasing radius produces a simple extraction of the pin.

Abstract: A device for lifting, steerably moving and putting down a load includes a removable dolly which cooperates with an anchor plate fixed to the load. The removable dolly includes a chassis provided at its front part with a lifting and abutment system which cooperates with a complementary system on the anchor plate, the chassis being lockable to this plate. A steering system embodies two wheels mounted individually on the chassis and a set of links which hold the wheels parallel at all times. An orientable maneuvering bar is pivoted to the chassis and to the set of links. A locking arrangement is provided for selectively locking the maneuvering bar relative to the chassis. A device of this kind can be used to move and to position equipment to be slung underneath an aircraft.

Abstract: The pin pulling assembly includes an active member which is engageable to a pin, the active member comprising a handle having an increasing radius spiral configuration, the radius increasing from a center pin engaging vertex stud. Further, the assembly includes a plurality of passive stud engaging collars for use with the active member when the pin has a flat head. By rotating the active member, the increasing radius produces a simple extraction of the pin.

Abstract: A device is provided for lifting objects and holding those objects suspended. The device comprises an arcuate foot, one end of which is adapted to fit under an object to be lifted, and a central shaft secured to the foot at a predetermined angle. The shaft is secured intermediate the ends of the foot. The device also includes a brace adapted to be positioned against a vertical surface of the object to be lifted, and means connected to the shaft and the brace for holding the brace at a distance from the shaft. The angle between the shaft and the foot is adjustable and generally forms an "L" or "T" shape. The brace consists of an elongated trough with a U-shaped cross section having a hole bored through the central portion of the brace. At the hole are secured two arms, an upper and a lower arm. The lower arm is fixed to the portion of the shaft near the attachment to the foot, while the other arm is slidably mounted on the upper portion of the shaft.

Abstract: A base is wheel supported and carries an upright post member having laterally spaced apart brackets for engagement with two blades of a two or three bladed propeller when lifting a nose wheel. Each bracket is provided with a liner to avoid marring of blade edges. Post members of different lengths are provided for use in lifting a main gear wheel of low wing and high wing aircraft. Both of the last mentioned post members pivotally carries a lift pad for engagement with a wing surface. A method is disclosed for lifting a nose or main gear wheel off the ground to a stable elevated position. Fastener assemblies lock the propeller engaging brackets in the upright or inclined positions to engage a two bladed or a three bladed propeller.

Abstract: The invention is a jack stand for using the drive power of a vehicle to re the vehicle off the ground. The jack stand has a retention device such as a cradle to engage an undercarriage member of the vehicle. The retention device is connected to a post which in turn is mounted to a base plate. The base plate is configured to allow the post to pivot to a vertical position as the vehicle is driven over the jack stand so that the post raises the vehicle.

Abstract: An axle mounted trailer lifting device has a main body including a mounting mechanism at one end and a strut extending from the end opposite the mounting mechanism. The strut is pivotally mounted within the main body. When lifting the trailer is desired, to fix a flat tire or other malfunction, the strut may be moved by rearward motion on the trailer from a rest position, where it does not contact the ground, to an operative position, where it comes to rest within the main body in contact with the ground at an angle of less than 90 degrees. The main body and strut are configured to permit locking the strut in either of these two positions. The mounting end of the device is mounted to the trailer axle or other portion of the trailer. This device may also be used in conjunction with automobiles or other motorized vehicles.

Abstract: The invention is a jack stand for using the drive power of a vehicle to raise the vehicle off the ground. The jack stand has a retention device such as a cradle to engage an undercarriage member of the vehicle. The retention device is connected to a post which in turn is mounted to a base plate. The base plate is configured to allow the post to pivot to a vertical position as the vehicle is driven over the jack stand so that the post raises the vehicle.

Abstract: My invention is a jack stand having a platform, a pair of uprights on the atform, a post swingable between the uprights, a vehicle engagement member at one end of the post, and a keeper releasably locking the post in a selected position. The keeper has a collar sliding on the post, fingers protruding from the collar, finger guiding rails connected to the uprights, and notches in the uprights which the fingers enter to lock the post in its selected position. The jack stand can have a clutch to arrest the post in a set position until the vehicle engages the jack stand. The jack stand can also have a mechanism to maximize resistance to rotation of the post as the jack stand attempts to leave its selected position. The mechanism may include a foot on the post interferingly engaging the platform as the post leaves the selected position. The mechanism can also include a connective linkage that operates to increase or maximize the arresting effect of the clutch just as the post departs the selected position.

Abstract: The invention is a jack stand for using the device power of a vehicle to raise the vehicle off the ground. The jack stand has a retention device such as a cradle to engage an undercarriage member of the vehicle. The retention device is connected to a post which in turn is mounted to a base plate. The base plate is configured to allow the post to pivot to a vertical position as the vehicle is driven over the jack stand so that the post raises the vehicle.

Abstract: A tool for assisting in manually raising a heavy elongate article off a firm surface, comprises a handle having a pair of co-acting part-cyclindrical jaw members disposed at one end for gripping the article to be raised. A fulcrum member projects from one of the jaws on which the tool can be pivoted to raise the article off the surface. During the raising process the jaws are held together by a second handle pivoted to the first in a scissors-like manner, or by a pair of pivoted locking arms.

Abstract: A recreational vehicle leveling device having a wheel receiving plate and a terrain engaging plate that are pivotally hinged to each other at their front ends. Both of these plates have a predetermined curvature along their longitudinal axis. The rear end of the wheel receiving plate has interlocking hinge structure with the top end of a rear spacer plate. The bottom end of the rear spacer plate is detachably received in a slot formed adjacent the rear end of the terrain engaging plate. In its collapsed state, the terrain engaging plate, the wheel receiving plate, and the rear spacer plate can be stacked upon each other to displace a minimum amount of space. Handle slots are formed adjacent the front end of the vehicle leveling device.

Abstract: A vehicle hoist having four separate pivoting shafts. Each shaft is pivotally and slidingly mounted at its lower end on a transversal cylindrical beam which is fixed on a frame. The shaft is adapted to move between a horizontal and a vertical position. The frame is fixed on a base structure and adapted to longitudinally slide on it. The top of each shaft is pivotally connected to an anchoring member which is adapted to grip the rocker panel pinchwelds of the vehicle. When the vehicle is pulled horizontally, the four shafts gripping the vehicle, raise the latter. Abutting components stop and hold the shafts in their upright position. The transversal and longitudinal movements are provided to adjust to the width and the length of the different types of vehicles.

Abstract: A device for tilting vehicles is disclosed which is adjustable and allows a vehicle to be manually tilted readily by an individual. The device has two identical V-shaped units. When the vehicle is upright the device rests on a central horizontal base. The vehicle can be rocked to one side or the other to rest on one of the arms of the "V" and thereby expose the underside of the vehicle. The lengths of the arms of the "V" are adjustable to adapt the device to different vehicles.

Abstract: An apparatus for turning a vehicle on its side comprises a turning member and a supporting device for supporting the turning member for rotation about a generally horizontal first axis of rotation. The supporting device is rotatably connected to the turning member. The apparatus further comprises a brake for braking movement of the turning member relative to the supporting device. The brake operatively interacts between the turning member and the supporting device. The apparatus also includes first and second connecting devices for connecting a first wheel hub and a second wheel hub of the vehicle to the turning member. The apparatus further includes positioning devices for positioning the first and second connecting devices to align the first axis of rotation with the longitudinal center of mass of the vehicle, the positioning devices being operatively connected to the first and second connecting devices.

Abstract: An improved cradle for a vehicle lifting device, comprising longitudinally spaced bearer elements at diametrically opposed portions of the rim of the vehicle wheel, is affixed to the vehicle wheel by attachment means having recesses or sockets to fit over the lug nuts, or sockets or hexrod bolts to fit over the wheel studs, of the vehicle wheel.

Abstract: A direction of movement sensing apparatus is shiftably supported from the wheel track filling structure of a wheeled support tower for an irrigation pipe and is operative to shift between a first inoperative position assumed thereby when the tower is moving in a forward direction toward a second operative position relative to the wheel track filling structure when the tower is moved rearwardly over the ground. Connecting structure is provided and operatively connected between the direction sensing apparatus, the wheel track filling structure and the tower for raising the wheel track filling structure responsive to movement of the sensing apparatus to the second operative position thereof and thus enabling the tower to move rearwardly without damage to the wheel track filling structure.

Abstract: A pair of retractable leg assemblies for use in raising the frame of a motorcycle from the ground to permit servicing the same is disclosed. Each leg assembly includes a pair of telescopically engaged members having a cooperating pin and slot arrangement which enables them to be extended and locked simply by extending and twisting the same. Latching mechanisms are provided for releasably retaining the leg assemblies in either the retracted position for riding or the extended position for jacking. One of the leg assemblies enables the motorcycle to be jacked by rocking it side to side.

Abstract: A trailer hitch alignment device comprising an upwardly directed generally arcuate cradle with a vertically elongated tubular socket pivotally mounted therein. The socket receives the lower end of a trailer jack shaft. A locking pin selectively locks the socket to the cradle to preclude relative movement therebetween. Removal of the lock pin allows a rocking of the cradle and a corresponding shifting of the jack shaft and associated trailer. The cradle includes multiple upwardly directed handle receiving pockets.

Abstract: The invention concerns a device for lifting objects, such as logs, from the ground. A substantially L-shaped lever assembly is comprised of a shorter leg (2); a longer leg (3); and, an adjustable connecting means (9) for adjustably connecting the shorter leg (2) to the longer leg (3). The end of the shorter leg (2) constitutes a first ground contacting support (11), about which the lever is swingable upon manual actuation of the handle end (8) of the longer leg (3). Upon such swinging a pivotable hook means (5,6) engages an object (7), which is lifted from the ground. An adjustable lower portion of the longer leg (3) is extensible along the axis of the longer leg (3) and serves as a second ground contacting support (14) to keep the lever and the lifted object in the raised position. The second ground support is arrestable relative to the axis of the longer leg.

Abstract: In a first embodiment, stabilizing jacks (60) are pivotally mounted on the frame assembly (14) of a skid steered vehicle (10) to stabilize the vehicle. A jack (60) is pivotally mounted at a first end of each of the elongate load bearing frames (18) of the frame assembly (14). The jacks (60) may be released from a storage position so that a first edge (65) of the jack engages the surface. Propelling the vehicle (10) forward pivots the jacks (60) onto a support surface (68). In this position, the vehicle (10) is supported on the jacks (60), middle wheel members (44) and the rear wheel members (46). The vehicle (10) may be propelled rearward to pivot the jacks (60) out of the support position. A cylinder (30) having a piston connected to a cable (70) maintains the jacks (60) in a storage position after use. In a second embodiment, jacks (92) are mounted on a cross tube (88) extending between the load-bearing frames (18).

Abstract: A servicing stand for three wheeled vehicles of the motorcycle type includes a horizontal base which may be supported by casters and a pair of support brackets pivotally mounted to the rearward and forward ends of the base. Each of the brackets can swing from a retracted position through, and slightly past vertical to an extended position. A spring connected between the remote end of the forward bracket and the base urges the forward bracket toward its extended position. A linkage mechanism operatively couples the lower end of the rearward bracket to a releasable clamp mechanism which is utilized for holding the forward bracket in its collapsed position when the rearward bracket is also in its collapsed position. In this configuration, the servicing stand can be rolled underneath the three wheeled vehicle from behind, between its rear two wheels. A pair of C-shaped members at the upper end of the rearward bracket will then engage the rear axle of the vehicle.

Abstract: A method of jacking up a vehicle having double wheels by means of a jack having a strut passing at a slope into the clearance space between the tires of the double wheels and engaging simultaneously with the bosses of both wheels. The jack also has a base engaging with the ground. Jacking of the vehicle takes place by displacing the vehicle to cause the double wheels to ride up onto the strut in pole vault fashion to lift them clear of the ground.