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| Number | Title | Issue Date |
| 7320385 | Camera lifting apparatus and cargo handling operation aiding apparatus in industrial vehicle and industrial vehicle A camera lifting apparatus is used in an industrial vehicle equipped with a cargo handling apparatus for lifting a cargo carrying carriage up and down along a mast provided on a vehicle body. The carriage has a cargo carrying apparatus. The camera lifting apparatus ... | 01/22/2008 |
| 7204379 | Crane A crane has at least one telescopic crane arm with at least two sliding arms that are moveable against each other. At least one gliding element, which is housed in a frame in a detached and unfastened manner, is arranged between the sliding arms. The gliding element... | 04/17/2007 |
| 7111745 | Boom for a load handling machine A boom for a load handling machine, the boom has a mounting by which the boom is mounted on a body of the machine, and at least first and second telescoped sections. In use, the boom carries a load handling implement at or towards its outermost end. The first boom s... | 09/26/2006 |
| 7090086 | Extendible boom with removable hydraulic hose carrier A telescoping boom has a plurality of boom sections, and the boom sections nest together. The sections include an outer base section, intermediate sections, and an inner section that forms the outer end of the boom when extended. A hydraulic actuator and mechanical ... | 08/15/2006 |
| 7032352 | Structure to limit damage due to failure A tall building (100) includes a plurality of ray structures (104, 106) extending outward from a central, generally conical hollow reinforced-concrete core (102). In three of the rays (104), a frame (118) extends diagonally downwar... | 04/25/2006 |
| 7011488 | Slide arm for working machine A slide arm for a work implement is provided, which is simply structured to obtain improved assembling precision thereby ensuring smooth operation. To this end, the slide arm is such that a plurality of tubular structural bodies (i.e., outer and inner tubes), each o... | 03/14/2006 |
| 6978907 | Telescopic jib for a vehicular crane A telescopic jib for a crane, such as a vehicular crane, comprises an upper profile part and a lower profile part joined together. The lower profile part consists of several shell segments, each having an outwardly curved shape, and the upper profile part comprises ... | 12/27/2005 |
| 6928774 | Enveloping 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 |
| 6499612 | Telescoping boom assembly with rounded profile sections and interchangeable wear pads A boom assembly for a crane or other lifting device is provided. The boom assembly includes a plurality of telescoping boom sections, each having an at least partially rounded portion, and a plurality of corresponding wear pads for reducing friction betwe... | 12/31/2002 |
| 6109394 | Lubricant impregnated wear pads for extendable booms on material handling devices An extendable boom for a material handling device includes a first boom section for connection to a support frame, the first boom section having a plurality of first structural members. A second boom section is slidable with respect to the first boom sect... | 08/29/2000 |
| 6108985 | Slide mount for telescopic parts The invention relates to a slide mount for telescopic parts, more particularly for crane jibs, including a slipper arranged between the sliding surface areas of the telescopic parts, the slipper being configured so that it is held in place by a wedge effe... | 08/29/2000 |
| 6086256 | Telescopic jib bearing assembly with embossments A jib bearing assembly for at least two relatively movable telescopic parts of a jib for a crane includes embossments formed on at least one of the telescopic parts and cooperating bearing surfaces on the other part. The bearing assemblies are disposed in... | 07/11/2000 |
| 6062404 | Device and method for arresting sections of a telescopic jib The device and method for arresting movement of sections in a telescopic jib, which includes at least a first section and a second section and a telescopic cylinder telescoping the second section along a longitudinal axis of the telescopic jib relative to... | 05/16/2000 |
| 6056252 | Support assembly for telescopic conveyor system A support assembly for supporting an extendable frame that is telescopically mounted on a base frame. The support assembly includes a number of support rollers for supporting the extendable frame. The support rollers are supported by lever devices such th... | 05/02/2000 |
| 5865328 | Telescopic boom The present invention relates to a telescopic boom with at least one outer structure and at least one inner structure, each of which is designed as a hollow section with upper flange and lower flange, the upper flange having a half-basket profile with two... | 02/02/1999 |
| 5829606 | Device for guiding a telescopic part for a telescopic boom A boom collar for an outer telescopic boom section of a telescopic boom includes a tension belt forming at least a bottom surface and first and second curved corner portions of the collar. First and second sliders are disposed in the first and second curv... | 11/03/1998 |
| 5731987 | Telescopic 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 |
| 5632395 | Telescopic rod A telescopic rod with a plurality of tubular rod sections which are mounted so as to be slidable within each other, and with a multistage piston-cylinder unit arranged within the telescopic rod. The multistage piston-cylinder unit is connected, on the one... | 05/27/1997 |
| 5624047 | Telescoping mast with zero clearance for refueling machine A telescoping mast with zero clearance which can be used in a fully automatic, relative positioning refueling machine. The telescoping mast consists of a series of nested tubes separated by spacers of unique design. Each spacer consists of an upper spacer... | 04/29/1997 |
| 5515654 | Telescopic boom apparatus A telescopic boom including an elongated hollow outer boom, an elongated inner boom telescopically received within the outer boom, and guidance structure for guiding the inner boom for telescopic movement is provided. The guidance structure includes a plu... | 05/14/1996 |
| 5465854 | Telescoping tube assembly An extensible and retractable telescoping tube positions test devices that inspect large stationary objects. The tube has three dimensional adjustment capabilities and is vertically suspended from a frame. The tube sections are independently supported wit... | 11/14/1995 |
| 5314083 | Telescopic tower A telescopic tower for suspension from an overhang trolley, crane, or the like, have a lowermost tube for carrying a work area or platform, is constructed in that the tubes are of polygonal cross-section with inwardly, as well as outwardly projecting rail... | 05/24/1994 |
| 5158189 | Boom support system A boom support system such as those used on various hoisting equipment, such as cranes or the like, mine scaling equipment and other equipment utilizing telescopic booms. The boom support system includes a plurality of longitudinally extending support rai... | 10/27/1992 |
| 5060427 | Extension and retraction system for four section telescopic boom having simultaneous and equal extension and retraction of the telescopic sections An extension and retraction system for a four section telescopic boom having simultaneous and equal extension and retraction of the telescopic sections, wherein a pair of hydraulic cylinders are mounted exteriorly of the boom for extending and retracting ... | 10/29/1991 |
| 5020323 | Telescopically extendable and retractable arm The arm includes a supporting member and a plurality of telescoping members located therein and having a subsequently decreasing diameter. The supporting member and the telescoping members are interconnected by means of at least one kinematic train which ... | 06/04/1991 |
| 4944368 | Lift truck having improved single mast and bearing wheel assembly A fork lift assembly is supported against a single rectangular mast by at least four separate bearing wheel assemblies. The rectangular mast is positioned relative to the fork lift assembly so that a front edge of the rectangular mast is positioned direct... | 07/31/1990 |
| 4861112 | Apparatus for cleaning aluminum cells Apparatus for cleaning accumulated spent alumina, dross, aluminum pads, refractories and carbon rods from an aluminum cell including a first platform supported on outrigger members for spanning the open top of the aluminum cell. The ends of the outrigger ... | 08/29/1989 |
| 4793765 | Material handling apparatus An extendable material handling arm which is particularly suitable for use as a dipper stick of a back hoe digger. The arm has an outer member with a slot extending along its length, and an inner member provided with a digging bucket pivotally mounted adj... | 12/27/1988 |
| 4781882 | Guide roller assembly for nuclear reactor refueling apparatus An apparatus for loading and unloading a fuel assembly in a nuclear reactor has a bridge and trolley for positioning the fuel assembly and a pair of concentric inner and outer masts with the inner mast vertically movable in the outer mast and guide means ... | 11/01/1988 |
| 4759452 | Articulated load bearing wear pad assembly A support shoe assembly (30,32) for a boom having telescoping inner and outer boom sections includes a pair of articulated wear pads (52) which are mounted at the outer end of the inner boom section in sliding engagement with the inner boom section. The w... | 07/26/1988 |
| 4748779 | Telescopic arm for use in civil engineering machines A telescopic arm for use in civil engineering machines, in which guide rails extended axially are disposed while being protruded outwardly on both lateral sides of a base arm which is pivoted to the boom of a civil engineering machine main body, guide gro... | 06/07/1988 |
| 4699281 | Telescopic boom mechanism A telescopic boom for use on an elevating apparatus includes a first boom, a second boom telescopically disposed in the first boom, a third boom telescopically disposed in the second boom, a rolling mechanism disposed between the first and third booms and... | 10/13/1987 |
| 4699562 | Extendable dipperstick for excavators and backhoes An extendible dipperstick for excavators and backhoes. The dipperstick includes a telescoping member mounted to a main housing. The telescoping member includes a telescoping housing and a plate attached to one surface, forming flanges with respect thereto... | 10/13/1987 |
| 4690290 | Device of the kind comprising at least three movably co-ordinated parts A device for providing relative movement between three telescopically co-ordinated parts (1, 2, 3) which comprises a power device (7) of a type variable in length and acting between a point (8) on a first (1) and a point (9) on a second (2) of the parts, ... | 09/01/1987 |
| 4688688 | Jib crane arrangement having a rotatable mast A jib crane system comprising a horizontally extending load beam rigidly attached to the upper end of a vertically extending mast. The lower part of the mast is positioned inside a hollow structure such as a pipe and is rotatably associated therein, and s... | 08/25/1987 |
| 4575976 | Extension and retraction system for boom apparatus An extension and retraction system for a multiple section, telescoping boom apparatus of the type utilized for raising and lowering a work platform or basket. The innermost longitudinally movable section is carried by a longitudinally inextensible or base... | 03/18/1986 |
| 4544321 | Apparatus for moving a wheelchair into and out of an automobile Apparatus for moving a wheelchair into and out of an automobile under the control of a disabled person using the wheelchair. The apparatus comprises a wheelchair supporting assembly secured to the interior roof of the automobile rearwardly of the driver's... | 10/01/1985 |
| 4478014 | Telescopic boom with angled corner construction A telescopic boom is disclosed having a plurality of generally tubular boom sections each having its corners defined by angled corner plates converging upwardly and inwardly at equal angles relative to a central vertical plane containing the longitudinal ... | 10/23/1984 |
| 4442922 | Adjustable slider bearing assembly The invention provides several embodiments of support assemblies (26,30,32) suitable for use in a lift mast (10). Each support assembly (26,30,32) has two slider bearings (36) for symetrically loading the main loading surface (37) and the inboard and outb... | 04/17/1984 |
| 4406375 | Telescopic boom construction A multi-section telescopic lifting boom which is extended and retracted at least in part by chains having their ends secured to one section, engaging sprockets carried by another section and connected at an intermediate point to a third section. Telescopi... | 09/27/1983 |
