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Class 212/347 - BOOM OR MAST


Subclass of Class 212 - Traversing hoists
Definition: Subcombination comprising an elongated structural member
No. of patents: 94
Last issue date: 11/17/2009


1      
NumberTitleIssue Date
7617943Crane lattice boom and a crane
The invention relates to a crane lattice boom comprising at least two boom sections (3, 5, 7, 9) and at least one guy support (27, 41) for a rope guy arrangement with a guy rope (13), ...
11/17/2009
7377740Lifting device for a personal-transportation vehicle
A preferred embodiment of a lifting device includes a mounting column having a first major portion extending in a first direction, and a second major portion fixedly coupled to the first major portion and extending in a second direction. The lifting device also comp...
05/27/2008
7367462Billboard advertising copy hoist system
A hoist system can be used to raise articles. The hoist system can include a mounting structure attachable to a billboard structure, a pole member fastenable to a mounting structure and a winch assembly. The winch assembly has at least one component coupled to the p...
05/06/2008
7322484Moisture shedding system
A moisture shedding system for hollow boom (30) is disclosed. The system has at least one drainage aperture (38) in or adjacent a lower wall of the boom and a fluid director (45) is associated with the aperture for directing fluid on the inner s...
01/29/2008
7299589Telescoping boom actuation mechanism formed of concentrically nested tubular boom sections mutually engaged by roller assemblies riding on helical tracks
A telescoping boom mechanism for deploying an expandable structure, such a hoop-supported antenna, comprises a plurality of concentrically nestable tubular boom sections, that are mutually engageable with one another by way of roller assemblies and helical tracks fo...
11/27/2007
7156245Device for demountable assembly of the jib elements of a tower crane
The invention is concerned with the demountable assembly of latticework jib elements comprising upper and lower chords connected to one another by means of triangulation bars. In the region of the upper chords, there is provided an assembly by shackle, tenon and a c...
01/02/2007
7131548Folding pinnacle bending device
A folding pinnacle bending device for a mobile crane (20) comprises a joint area (9) which is bent in order to adjust the angle of the folding pinnacle (10) and which comprises a joint (8) in its upper or tensile load area, wherein the jo...
11/07/2006
7044315Telescopic boom of a crane
The within invention concerns a telescopic boom of a crane with a pivot section, telescoping sections that telescope out of the pivot section, and bracing that has at least one guy support housed on one of the sections and a guy cable supported on one of these guy s...
05/16/2006
7025218Billboard advertising copy hoist system
A hoist system can be used to raise articles. The hoist system can include a composite pole member having a bend, a mounting structure attachable to the composite pole member and a winch assembly. The winch assembly has at least one component attached to the pole. T...
04/11/2006
6993879Molded plastic truss work
A molded plastic truss work includes an upper grid and a lower grid, with a plurality of interconnecting members interconnecting the grids. The upper grid includes longitudinal members and transverse members that extend between and interconnect the longitudinal memb...
02/07/2006
6928774Enveloping body
The invention relates to a covering body for masts of construction cranes, electricity lines, or the like with an outer covering which is designed to partially or totally encase a mast in the direction of extension and/or peripheral direction and which furthermore h...
08/16/2005
6923542Operator supported remote camera positioning and control system with longeron based beam
A remote camera positioning and control system is disclosed that permits a sole operator to use and support a camera out of arm's reach without external structural or personnel support. Various features of such a remote camera positioning and control system are disc...
08/02/2005
6871469Triangulation of a lattice girder, in particular of a jib element for a tower crane
For a lateral face of the lattice girder, defined by an upper chord and a lower chord, the triangulation comprises compression bars substantially perpendicular to the chords, oblique tension bars of smaller length connecting the top of a compression bar to the lower...
03/29/2005
6782667Tilt-up and telescopic support tower for large structures
A support tower for large structures such as wind turbines generators, microwave structures, high voltage transmission lines or the like, constructed of telescopic sections with the lowermost section having an edge portion pivotally connected to a foundation to enab...
08/31/2004
6679394Ring lift crane
The invention is directed to a ring lift crane with a liftable ring forming a circular traveling path and having a plurality of segments which can be connected to one another. Within the ring, there is arranged a chassis having a superstructure which is c...
01/20/2004
6669038Self-propelled crane
A self-propelled crane provides a possibility to lift the heavy and large-size loads and includes a mobile unit as a base unit, which carries a pivoting platform, a traverse, a boom, the bottom of which is by the hinge connected to the platform and the up...
12/30/2003
6540095Pipe-laying vehicle
The pipe-laying vehicle 1 includes a lower vehicle body 2, a driver's cab, and a jib 10 which is supported on the lower vehicle body 2, can be raised and lowered about a horizontal axis 11, and can be swivelled about a vertical pivot axis by a live ring. ...
04/01/2003
6516962Telescopic boom for cranes
A telescopic boom for crane, in particular mobile cranes, includes a base section and a plurality of boom sections received in the base section and telescopically extendible and retractable. The base section and the boom sections are each made of a profil...
02/11/2003
6508019Boom of bucket type excavator and method for making same
A boom body (23) comprises a boom front member (20), a boom intermediate member (22) and a boom rear member (21). An arm-connection bracket (24) is jointed to the boom front member (20) and a vehicle body-mounting bracket (25) is jointed to the boom rear ...
01/21/2003
6494437Boom mounted winch
A winch spooled with a cable is provided for mounting on the boom of a host vehicle. The winch is surrounded by a frame housing that is capable of withstanding the forces applied by the host vehicle. A braking mechanism is provided for controlling the spo...
12/17/2002
6460307Boom attachment for a prime mover
A boom attachment for a prime mover for lifting and setting trusses, walls, beams, and related structural components. The boom attachment for a prime mover includes a boom assembly including a prime-mover attachment assembly being adapted to mount to a pr...
10/08/2002
6434437Boom extension and boom angle control for a machine
A boom control apparatus and method are disclosed for controlling a boom of a machine. The boom control apparatus includes a boom angle sensor, a boom length sensor, a chassis pitch angle sensor, a chassis roll angle sensor, and a control lever. All of th...
08/13/2002
6405770Modular delimber
A delimber having a standard carriage and a delimbing boom, the delimbing boom slidably mounted through the carriage. A drive module is detachably connected to the carriage for use in moving the boom relative to the carriage. Two different types of booms ...
06/18/2002
6186346Multi-position low profile boom nose
A multi-position boom nose includes a support structure disposed at one end of a boom. The support structure supports at least a first sheave set, and the first sheave set includes at least one sheave. A pivot arm has a first end pivotally connected to th...
02/13/2001
6152425Boom mounted winch
A winch spooled with a cable is provided for mounting on the boom of a host vehicle. The winch is surrounded by a frame housing that is capable of withstanding the forces applied by the host vehicle. A braking mechanism is provided for controlling the spo...
11/28/2000
6098824Telescopic crane boom section and a process for making sure
A telescopic boom section for a mobile crane including an upper inverted U-shaped longitudinal section and a lower convexo-concave longitudinal section. The upper section and the lower section are welded to each other along the seams formed by the longitu...
08/08/2000
6045320Arm extension for a backhoe
An arm attachment for an arm of a backhoe. The arm attachment attaches directly to a shovel to permit large objects to be picked up. A boom includes a support portion resting against the shovel and an extending portion. A cross member extends transversely...
04/04/2000
6019569Excavation machine
A swing type front working mechanism 7 is provided, the front working mechanism 7 having a foot portion of a lower boom 8L of a boom 8 pivotally supported on brackets 12a through a pin 18. A cross-link 40 is connected between the bracket 12a and an upper ...
02/01/2000
5842587Offsetting link assembly for folding luffing jib
A crane boom and luffing jib assembly have an offsetting link to allow the luffing jib to fold back and under the main boom for assembly of the boom and luffing jib assembly on a construction site where the entire length of the boom and luffing jib cannot...
12/01/1998
5769251Controlling operations of a reach tower crane
An apparatus and a method for controlling the operation of a reach tower crane, in which a horizontal boom can safely and securely be operated or stored by one operator in the cab, and in which even if sensors are out of order, the stability of the crane ...
06/23/1998
5731987Telescopic booms
An operating system for telescoping a telescopic boom for a crane, particularly a boom having three or more telescoping sections, enabling the boom to be extended and retracted automatically under load according to a predetermined sequence which optimises...
03/24/1998
5673805Jib pin alignment jack assembly
A jib pin alignment jack assembly for aligning the apertures on the proximate end of a jib with apertures on the nose assembly of a boom section to facilitate the manual insertion of pins therein for holding the jib in the operative position relative to t...
10/07/1997
5655676Chord protector
A chord protector employs a resilient covering affixed to an appropriate crane element, extension, lattice structure or headache ball, to protect a chord from damage during a collision with a headache ball or other weighty object. The chord protector can ...
08/12/1997
5649635Easily removable sheave assembly
A crane boom top is disclosed in which a sheave assembly having a number of sheave sets is supported on the crane boom top by boom sheave supports. Each sheave set is mounted on an individual shaft and connectors connect the individual shafts to the boom ...
07/22/1997
5487479Method for nesting longitudinally divisible crane boom segments
A longitudinally divisible crane boom segment includes at least a first and a second section that are easily nested together for transport. The sections each include at least one chord member, at least one bracket attached to the section, and a plurality ...
01/30/1996
5238716Composite beam having a hollow cross section
A composite beam having high compressive and tensile strength is disclosed. The beam is also very lightweight, has a high modulus of elasticity, and is able to support heavy loads in applications such as in use in aerial lift devices. High dielectric resi...
08/24/1993
5222614Apparatus for treating soil or vegetation, comprising a boom which can pivot in relation to longitudinal and transverse axes
A carrier vehicle is solidly connected to a stationary support frame (2) which carries, by pivot joints or of a ball joint (3), a movable support frame (1) obliged to pivot only about a transverse axis relative to the direction of the travel of the vehicl...
06/29/1993
5215166Mobile stacker for automated storage and retrieval system
A self-propelled mobile stacker for an automated storage and retrieval system having a mast assembly of lightweight non-metallic material removably installed on a metal chassis. The mast assembly comprises a mast and base formed of a common "I"-shaped com...
06/01/1993
5193698Jib stretching and folding device for use in a crane
A jib stretching and folding device is used in a crane having a jib for increasing a lift of the crane, the jib being stretchable from a folded position along a side surface or a lower surface of a boom through a vertically suspended position. The jib str...
03/16/1993
5152659Boom assembly for work machine
A boom assembly for a work machine comprising: a pair of first and second members of which one end pivot part is connected pivotally to a base machine and the second end pivot part supports a loading tool pivotally. An inflecting part is provided in the m...
10/06/1992
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