1559 results about "Semi-trailer" patented technology

A transportation system for secure, auditable and trackable smart mobile containers (SMC) for securely shipping less than truckload volumes of products that require special handing segregation as controlled products, such as ethical drugs, along with general, non-controlled merchandise. Dedicated semi-trailer lockers are secured under the deck I-beam framing, including lockable fold-down doors that become ramps for loading/unloading. The lockers are mounted back to back along the center line of the trailer under-deck. Each SMC includes a electronics package that can read RFID tags, has condition sensors and an RF module to permit remote monitoring of location and cargo/container conditions. The SMC can include an electronic lock that provides access security, and an audit trail of all opening and closing events.

An improved method and device for reducing the base drag of bluff bodies, including large boxy highway vehicles such as semi-trailer trucks, which uses low drag vortex generators in combination with either a trailing panel or shortened boattail plates, to provide greater base drag reduction than other previously known methods. The preferred embodiment reduces the required length of boattail plates by over half, making it compatible with current U.S. regulations for trailer underride bars, and providing easier access for rear cargo doors. The device is easily installed as an add-on device on both new and existing truck bodies. In an alternate configuration, the shape of one or more sets of shortened boattail plates can be built into the rear body shape of vehicles, to maximize the interior volume for a given total vehicle length.

The invention discloses an electric drive fracturing semi-trailer of a frequency conversion integrated machine. The optimization and integration of the traditional power supply semi-trailer and the fracturing semi-trailer realize the functions of power supply and fracturing of one semi-trailer without using the complete set of the power supply semi-trailer and the fracturing semi-trailer, the electric drive fracturing semi-trailer is more flexible in actual use, and the well field layout of oil and gas fields is greatly optimized; the transportation is convenient; only a set of high-voltage cables can be connected with the high-voltage power supply to reach a working state, and the wiring installation is faster; compared with diesel-driven fracturing, and the noise of the electric drive fracturing is low without exhaust emission pollution; the driving source is power, which has lower cost than the diesel; the electric drive fracturing semi-trailer adopts an integrated design of a motorand a frequency converter (namely, the frequency conversion integrated machine), the space occupied by the electric motor and the inverter in the prior art is reduced effectively, so the installing part of the electric drive fracturing semi-trailer has smaller volume and the transportation is more convenient, and can also provide space guarantee for installing other equipment on the semi-trailerbody.

The invention discloses cementing equipment with mutually standby hydraulic systems. The cementing equipment comprises a loading system, a hydraulic system connected with the loading system and a power system for driving the hydraulic system. The hydraulic system at least comprises a hydraulic pump, a switching device and an overflow valve, the hydraulic system is connected with a mixing system, and the hydraulic system is connected with a slurry mixing system provided with an AMS automatic slurry mixing system, a centrifugal pump circulating and filling system; the slurry mixing system is controlled and adjusted through a control system, the control system is arranged on a computer control platform, and the control platform is arranged on the loading system; and the loading system is based on one or more of a vehicle-mounted chassis or a trailer chassis or a skid-mounted chassis, wherein a semi-trailer based on the trailer chassis can be fixedly connected with a plurality of engines, a plurality of gear boxes, a plurality of plunger pumps, at least one metering tank, the slurry mixing system, a high-low pressure manifold, the control system, the hydraulic system and an electrical system.

In the case of a method for hitching a trailer (2) to a motor vehicle (1), in particular a semitrailer to a semitrailer towing machine, an image sensor (5) is provided which is arranged in a hitching region (6) in such a manner that image data of the hitching region (6) are recorded. During the approach of the motor vehicle (1) to the trailer (2), stored model data of the hitching region (6) of the trailer (2) are segmented in the image data recorded by the image sensor (5) and are in each case placed in the correct position in the image data. A target zone (9) for the hitching is determined therefrom. The arrangement of the target zone (9) in the image data is used as a measurement for a steering operation of the motor vehicle (1) during hitching.

A trailer, such as a conventional full trailer or semi trailer used for hauling freight, is convertible into an assembly hall by folding its sidewalls upwardly to define ceiling extensions extending from the trailer roof. Additional floor extensions which are pivotally affixed to the sides of the trailer floor may then be folded downwardly in substantially parallel relation to the trailer floor to define an assembly hall floor. The floor extensions fold in nested relation between the folding trailer sidewalls/ceiling extensions such that the entire arrangement fits within the same space envelope as the conventional trailer. Once unfolded, the trailer may be used as a shelter/assembly hall for meetings and other events, and may be provided with interior seating, safety railings, and other enhancements.

Films are closely conformed to substrates by reducing the air pressure to a subatmospheric level in at least one airflow pathway that is present in the film or the substrate. The reduced air pressure enables the film to tightly contact the substrate in locations where protrusions or depressions on the substrate are present. The method is particularly useful for conforming film containing graphics to a variety of substrates such as the sides of semi-trailers or concrete block walls, even in instances where the semi-trailer sides include rivets and/or grooves and where the concrete block wall is relatively rough.

The invention discloses an all-in-one anchoring trailer, and belongs to ground devices of medium and small-sized tethered balloons. The all-in-one anchoring vehicle comprises a semitrailer chassis, a pivoting platform fixed on the semitrailer chassis through a pivoting support and a mooring tower, a plurality of horizontal support arms and a capsule box which are arranged on the pivoting platform, and also comprises a shelter fixed to the front part of the pivoting platform, wherein a winch system is arranged in the shelter; the mooring tower is arranged at the front end of the pivoting platform; the horizontal support arms are hinged on both sides of the rear end of the pivoting platform; and the capsule box is fixed to the rear part of the pivoting platform. In the all-in-one anchoring trailer, all-in-one operation such as aeration, anchoring, levitation, air retention, recovery, roll-up and the like of the medium and small-sized tethered balloons can be performed on the pivoting platform directly, so the maneuverability of a tethered balloon system is improved greatly, the time of unfolding the system is reduced, the operation is simplified, the efficiency is improved and the quick-response capability of the tethered balloons is enhanced.

A semitrailer cargo door locking system is described for use with a semitrailer cargo door having as part of its opening mechanism a rotatable handle which secured within a hasp mechanism comprising a rigid lower hasp and a swivelable upper hasp. The locking system includes a shackleless keyed lock having an internal bolt for engaging aligned holes provided in the upper and lower hasps, thereby preventing unauthorized opening of the cargo doors when in a locked state. The lock housing is provided both with a protective extension to minimize attempts to pry the lock, and with a tapered side wall to prevent removal by the application of a destructive torque applied by a wrench or other like device. The lock is further provided with a anchor line for either permanently or removably securing the lock to the cargo door. To provide the lock with the ability to be used with regulated loads, a means may also be provided to attach a sealing structure to the lock.

A modular passenger semi trailer incorporating a vehicle construction technique in which the assembled passenger and alternate industrial embodiment modules observe structural strength, weight and balance and fail safe design considerations. The modular passenger semi trailer cabin module, including all interior seating and equipment, is assembled as a single unit upon a single, top, flat production joint face of the lower structure module, that module having a plurality of closed box beam compartments. A substantially sized cylinder compartment at the rear of the vehicle houses a pneumatically, reciprocally operative piston assembly containing a unipoint suspension which operates cooperatively with a wheel unit in the lower portion of the compartment. The wheel unit is captively located by a wheel shaft and cam block, swivel block external members, sandwiched, acting cooperatively within a forward and aft set of vertically disposed guideplates, the wheel unit operative along its vertical, longitudinal and lateral axis.

The Umbrella Semi-Trailer Drag Reducer is a device that reduces tractor-trailer aerodynamic drag, saving energy and reducing fuel consumption. The design includes a number of features similar to an umbrella, including flexible skin, metal ribs, quick-acting deployment, and compact stowage. The Umbrella Semi-Trailer Drag Reducer is designed to minimize installed cost, be robust and vandal resistant, and reduce the time needed for deployment to only a few seconds. The design includes two independent, paraboloid, mirrored halves, one mounted to each door. The bottom of each mirrored half is open, with a profile similar to one quadrant of an umbrella. Wide-throw hinges accommodate the collapsed stowed drag reducer. Turnbuckles maintain taught skin. The design allows easy retrofit for most existing semi-trailers. The drag reducer is mounted high above the road surface, with no part protruding beyond the top or sides of the semi-trailer.

An aerodynamic forebody device is provided for use with a tractor-trailer combination vehicle to be installed on the front of the semi-trailer. By optimizing the inclination angle of the top surface of the aerodynamic forebody device, aerodynamic drag is minimized. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

A landing gear assembly for a semitrailer includes a pair of legs that may be simultaneously raised or lowered by turning a single crank. Each of the legs is configured to be able to be mounted in either an inboard or outboard configuration. This is achieved by providing both sides of each leg with no protrusions that extend beyond the space provided in the mounting bracket and the mounting hole used to connect the landing gear to the semitrailer. The gear assembly of the landing gear includes a unique floor base that receives and supports the input shaft. A cover is used to support the input ends of the input shaft and the output shaft. The cover is connected to the input side of the upper tube of the leg and allows the gear assembly to be easily assembled within the perimeter of the upper leg.