Class 182/2.7 - Parallelogram linkage

Subclass of Class 182 - Fire escape, ladder, or scaffold
Definition: Device wherein the swingable support comprises a parallel
No. of patents: 39
Last issue date: 05/13/2008

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Number	Title	Issue Date
7370723	Loading machine A loading machine is disclosed with at least one drive train, with at least one overload protection device for the drive train and with sensors for determining an overload state in the drive train. Critical operating conditions of the loading machine can be determin...	05/13/2008
7357263	Articulating jib An improved boom-mounted jib unit (10) is provided having an increased range of motion and work envelope, which allows a user to lift heavier loads an otherwise work with less jib interference, as compared with prior jib units. The jib unit (10) includ...	04/15/2008
7267253	Multipositional apparatus for mounting to a receiver assembly A multipositionable apparatus for mounting on a receiver assembly carried by a vehicle includes a support frame, a platform carried on the support frame and a linkage for displaceably mounting the platform relative to the frame and positively holding the platform in...	09/11/2007
7246684	Boom lift vehicle and method of controlling boom angles A boom lift vehicle includes a tower boom pivotally coupled at one end to a vehicle base for tower lift function and rotatable relative to the vehicle base for swing function. A main boom is pivotally coupled to an opposite end of the tower boom for main lift functi...	07/24/2007
7182173	Material-handling device for aerial work platform An improved aerial work apparatus of the type having an aerial work platform attached to the distal end of a boom mounted to a mobile chassis comprising a material-handling device mounted with respect to the platform. Preferably, the material-handling device is eith...	02/27/2007
7165650	High-rise, fire-fighting, rescue and construction equipment An elevator system for traveling on a rail attached to the outside of a high-rise building. One elevator has a telescopic arm attached for reaching any position on or above the building. The telescopic arm consists of two parts, which are interconnected with a pivot...	01/23/2007
7004285	Load-sensing mechanism for aerial work apparatus An aerial work apparatus having a boom mounted to a base, a platform attached to the distal end of the boom, a boom mechanism for positioning the platform, a boom control module mounted with respect to the platform, a vertical load-sensing mechanism mounted at the p...	02/28/2006
6955025	Self-erecting tower and method for raising the tower A tall tower is divided into an upper section with a tower top and a lower section with a tower bottom. The sections are hinged together. The lower section is hinged to a tower base. A telescoping crane is attached to a lift point on the lower section. The crane is ...	10/18/2005
6733227	Elevating lift Disclosed herein is an elevating lift for raising and lowering a load (such as a sensor suite) onboard a vehicle, such as a Humvee, which can allow for the transport of the vehicle in a standard transport without removal of the sensor suite from the vehicle, and can...	05/11/2004
6585079	Work platform with rotary actuator A fluid-powered rotatable work platform assembly for use with a vehicle such as a vehicle having an arm for positioning the assembly. The assembly includes a work platform or support configured to support a load, a body having a cavity extending along a l...	07/01/2003
6173810	Trailer personnel lift with a level sensor and manually set outriggers A trailer personnel lift (20) with a level-sensing system (69). The level-sensing system (69) provides information to a level-indicator display (72) that indicates which outriggers (34) of the trailer personnel lift (20) need to be lowered. Upon lowering ...	01/16/2001
6024191	Lift apparatus having an articulated double parallelogram boom assembly A lift apparatus includes a superstructure frame support, a riser, and an articulated parallelogram boom assembly operatively connected between the superstructure frame support and the riser. The articulated parallelogram boom assembly includes a floating...	02/15/2000
6012544	Aerial work platform with removably attachable support structure for auxiliary power plant The aerial work platform includes a support frame, wheels rotatably attached to the support frame, and an electric motor rotatably driving at least one of the wheels. A boom having a first end is pivotably mounted to the support frame, and a fluid motor r...	01/11/2000
5934409	Trailer personnel lift with a level sensor and manually set outriggers A trailer personnel lift (20) with a level-sensing system (69). The level-sensing system (69) provides information to a level-indicator display (72) that indicates which outriggers (34) of the trailer personnel lift (20) need to be lowered. Upon lowering ...	08/10/1999
5913379	Articulated aerial work platform system An articulated aerial platform system having a lift assembly including an upper parallelogram riser and a lower parallelogram riser. The upper and lower risers are raised and lowered by a single riser cylinder mounted between a base of the system and the ...	06/22/1999
5868218	Mobile lift assembly A lift assembly includes a work platform pivotally mounted on the end of a boom for rotation through 270° around a vertical post on the outer end of the boom. Rotation of the platform is effected manually by an operator on the platform, who also controls...	02/09/1999
5803204	Personnel lift with clamshell cage assembly A clamshell cage assembly is provided for use in conjunction with a portable personnel lift. The personnel lift may be either a jib boom lift or a lift having a multi-sectional telescoping mast. The clamshell cage assembly has an upper and mid-level safet...	09/08/1998
5634529	Folding rail for a lifting truck A lifting truck is provided with a folding rail assembly for confining workers to an elevated platform. The folding rail assembly includes a plurality of link members pivotally connected relative to the platform and to a protective railing structure. The ...	06/03/1997
5564522	Multi-purpose vehicle A multi-purpose vehicle of a type having the ability to swing about a vertical axis like a turret and having a two-member boom pivotable about a horizontal axis with an operator's cage at its distal end. Controls are available at the cage for locating and...	10/15/1996
5388662	Hoist machine associated to a self-propelled truck Hoist machine for aerial platforms (18) associated to self-propelled trucks (1), comprising a system of articulated levers constituting four lifting stages activated by three hydraulic jacks (5, 10, 16); the terminal stage being connected to a platform pr...	02/14/1995
5355970	Multicell articulated riser system for a self propelled aerial work platform An articulated riser system for aerial access equipment wherein a parallelogram linkage is provided by a support frame, a riser frame assembly, and a pair of substantially parallel arms pivotally connected at each end to the support frame and riser frame ...	10/18/1994
5299653	Work station with mobile elevatable work platform Disclosed is an apparatus having a work platform comprised of an expandingly extendable basket mounted on an underframe. The basket has a relatively mobile portion that translates out from the underframe and out from a relatively stationary portion of the...	04/05/1994
5135074	Telescopic boom elevating apparatus with a mechanical lift and level linkage system A telescopic boom and lift apparatus positions a vertical support and platform and includes a telescopic boom unit and a rigid mechanical lift linkage to pivot the boom unit with automatic leveling of the support. The telescopic boom unit is pivoted to a ...	08/04/1992
5129480	Articulated parallelogram boom assembly synchronization device A synchronization device for an articulated parallelogram boom assembly having a floating frame connected between an upper work platform carrying boom assembly, and a lower vehicle mounted boom assembly. The synchronization device is mounted on the floati...	07/14/1992
4967876	Powered access platform units A powered access platform unit having a wheeled base carrying a corner pillar to which is articulated one end of a parallel linkage boom articulated at the other end to the remote corner of a platform structure on the same side of said structure as the si...	11/06/1990
4757875	Vehicular low profile self propelled aerial work platform A vehicular low profile self propelled aerial work platform assembly having a turntable positioned in a horizontal plane in close proximity to the axles of the vehicle. A parallelogram linkage is provided between a superstructure support frame carried by ...	07/19/1988
4518059	Attachment for the booms of cranes or the like The free end portion of the boom of a crane is detachably coupled to a flat rectangular carrier for a collapsible gallery. The carrier can pivot about an axis which is normal to the longitudinal direction of the boom to and from a position adjacent to one...	05/21/1985
4286721	Access equipment Apparatus enabling access to the interior surfaces bounding a large spaced comprises a pole adapted to extend vertically through the height of the space with its lower end located at the base of the space, at least one boom structure connected with said p...	09/01/1981
4280589	Elevating device An elevating device consists of a base frame, usually mounted on running wheels, a turntable on the base frame, a vertical first post on the turntable and first and second arm means mounted on the post. The first arm means is a parallelogram linkage conne...	07/28/1981
4217971	Rotating powered step A powered step for use with large construction equipment such as large crawler-type tractors, mining trucks and similar vehicles that have an operator's platform located a substantial distance off the ground, and which require storage of any ladder or ste...	08/19/1980
4179010	Access equipment An accessory for converting a crane of the kind having a telescopically extendible jib pivotally connected to a turntable into access equipment comprising a unit to be fitted to the free end of the jib of the crane, a bracket member pivotally connected to...	12/18/1979
4169511	Boom-pulpit vehicle A three-wheeled vehicle has a pulpit boom mounted near a single steering wheel for azimuth and elevation positioning under control from the pulpit. All three wheels are driven, also under control from the pulpit. The boom assembly supporting the pulpit sw...	10/02/1979
4098371	Mobile scaffold A mobile scaffold has a carriage for traversing longitudinally a first track and a second track. The carriage is suspended from the first track. Lateral support for one side of the carriage is provided by the second track, and this track is spaced vertica...	07/04/1978
4058184	Scaffold A movable scaffold for use in gaining access to the inside wall of an upright cylindrical tank such as a petroleum refinery reactor tower. The scaffold comprises a central frame having four radially extending, adjustable arm sets each connected to a scaff...	11/15/1977
4019604	Elevating platform apparatus Apparatus is disclosed for elevating a platform of the type adapted to carry workers, tools, equipment and/or material. Parallelogram boom assemblies support the platform from a mobile frame such that the platform can be raised and lowered in a level atti...	04/26/1977
4000787	Vehicle for picking fruit The machine disclosed herein is made up basically of a boom mounted on a frame supported by three widely spaced wheels. A platform is attached to the distal end of the boom for supporting an operator and the machine is equipped with hydraulic controls acc...	01/04/1977

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Class 182/2.7 - Parallelogram linkage