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| Number | Title | Issue Date |
| 7428759 | Patient lift with support legs that spread over two ranges of motion A portable patient lift has spreadable support legs with a feature that enables the legs of the lift to operate in a first range of motion during operation, and a second range of motion for compact folding. ... | 09/30/2008 |
| 7340373 | Weight detecting apparatus for crane and crane having the same A weight detecting apparatus for a crane includes a base machine comprising a lower traveling body and an upper rotating body; weights mounted on this base machine; ID (identification) tags which are installed on the respective weights and in which ID information on... | 03/04/2008 |
| 7334693 | Biased support A biased support for booms that can pivot about a pin, for pivoting travel tracks for vehicles that run on rails, such as trolley travel tracks on booms. The booms are mounted to pivot via pins, the lock on the boom and slide plates on the upper and lower bearing po... | 02/26/2008 |
| 7322484 | Moisture 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 |
| 7320377 | Mobile conveying vehicle The present application relates to a mobile conveying vehicle comprising axles rigidly arranged on a support frame, an operator's cabin and a series of units and additional unit parts such as an engine, pumps, a radiator, hydraulic tank and/or fuel tank. In accordan... | 01/22/2008 |
| 7293668 | Manual boom lift method and apparatus Manual boom lift apparatus and method involve a base having three support legs, a fulcrum configured to fixedly mount the legs, a boom member detachably mounted on the fulcrum, the boom member including on either end a counterbalance arm configured for detachably mo... | 11/13/2007 |
| 7261631 | Portable big game hoist assembly A portable big game hoist assembly includes a bottom rod that has a first end and a second end. Each of a pair of bottom couplers is attached to one of the first and second ends. Base supports are attached to and extend laterally away from the bottom couplers. A fir... | 08/28/2007 |
| 7201552 | Vehicle game lift A vehicle game lift adapted for releasable attachment to a trailer hitch mounted on a rear of a vehicle. The game lift is used for suspending a killed animal above a ground surface. The lift includes an inverted “L” shaped post having a vertical post member and ... | 04/10/2007 |
| 7182319 | Roller assembly for a lifting device for a personal-transportation vehicle A preferred embodiment of a roller assembly for a lifting device for a personal-transportation vehicle includes a shaft member for mounting on a lifting arm assembly of the lifting device and having an outer surface, and a roller member for supporting a lifting stra... | 02/27/2007 |
| 7156246 | Retractable rotating ATV mounted lift boom A retractable rotating ATV mounted lift boom for an ATV rack used to lift various objects. The invention includes a horizontal base plate and angle iron attached to the ATV rack, a horizontal female receiving tube attached onto the horizontal base plate, a horizonta... | 01/02/2007 |
| 6951345 | Trailer hitch alignment device A hitch alignment device for aligning a ball and socket of a ball and socket type hitch is disclosed. The alignment device includes a base with a winch and pivotable cable guide mounted on it. The cable guide includes a plate with an arm extending outwardly from it ... | 10/04/2005 |
| 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 |
| 6705821 | Collapsible game hanger for pickup truck The game hanger apparatus is attachable to a tow hitch of a pickup truck. The folded game hanger can be taken to the site in the bed of the truck and speedily installed in the tow hitch for hanging, cleaning and butchering large game, such as deer and small bears. T... | 03/16/2004 |
| 6616397 | Hoist system and method of use A portable hoist system and method of use in combination with the rear bed and ball hitch of a pick-up truck. All of the system components may be contained in a portable bag about four feet long. The system components include plural boom sections, plural ... | 09/09/2003 |
| 6578722 | Portable hoist assembly The present invention is for a portable hoist assembly that includes a base member, an upright support member and a boom. A winch and line are attached to the hoist assembly with an engagement member for lifting objects. The base member attaches to a rece... | 06/17/2003 |
| 6533135 | Portable lifting frame A portable lifting frame comprises an elongate track provided with a bogie movable there along. The bogie is adapted to accept a lifting device. An elongate support is provided for the track wherein the track and support are made up of two or more cojoini... | 03/18/2003 |
| 6272413 | Safety system for boom-equipped vehicle While a crawler body 110 is traveling, infrared sensors 144 and an elevational difference calculator 132 incorporated in a controller 130 detects the magnitude of a step present ahead of the crawler body 110. A safety speed calculator 134 calculates a saf... | 08/07/2001 |
| 6213320 | Enhanced efficiency method of logging and specialized apparatus therefor A method of logging utilizes a combination log yarder and processor vehicle having a basic vehicle structure not unlike that of a track-type excavating machine, but with a boom arm assembly arranged for operation in conjunction with a log processing head ... | 04/10/2001 |
| 6202868 | Collapsible hoist A vertical lift hoist and winch is taught which can be used, for example, for suspending wild game animals for the purpose of field dressing. The assembly is collapsible without any disassembly of major parts, to be able to fold up into a convenient carry... | 03/20/2001 |
| 6138991 | Vehicle-mounted hoist apparatus A hoist apparatus is provided for a vehicle, such as an all terrain vehicle (ATV) and includes a support bracket assembly for mounting on the vehicle. The support bracket assembly includes a horizontal support plate and a hoist-axle-reception channel depe... | 10/31/2000 |
| 6045297 | Method and apparatus for drilling rig construction and mobilization The present disclosure is directed to a method and apparatus for drilling rig mobilization and demobilization. The rig is assembled or constructed at a remote site. It is later taken apart and transported to another remote site or back to a staging point.... | 04/04/2000 |
| 5960970 | Multiple position wire rope guide A crane having an upper works rotatably mounted on a lower works, a boom comprising a boom butt and a boom top, a load hoist line, and a wire rope guide connected to the boom butt. The wire rope guide is pivotable between a first position on the end of th... | 10/05/1999 |
| 5950847 | Railborne mobile crane with an auxiliary car coupled to the crane vehicle A railborne mobile crane with an auxiliary car which is coupled to the crane car and has a supporting device for the head of the boom during transport, wherein the boom lies essentially horizontally and is articulated at the boom base at the pivoting fram... | 09/14/1999 |
| 5947308 | Bridge erection system A mobile crane including a wheeled carriage, support members having distal ends, mounted to the carriage and extendable laterally therefrom in two positions including a retracted position with the distal ends adjacent the carriage and an extended position... | 09/07/1999 |
| 5921415 | Bridge erection system A mobile crane including a wheeled carriage, support members having distal ends, mounted to the carriage and extendable laterally therefrom in two positions including a retracted position with the distal ends adjacent the carriage and an extended position... | 07/13/1999 |
| 5690240 | Dolly with detachable boom A portable crane assembly is disclosed including a support that can be selectively coupled to and decoupled from a transport dolly. The support includes a plurality of legs that can support a crane boom independently of the dolly. The transport assembly i... | 11/25/1997 |
| 5673805 | Jib 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 |
| 5597081 | Portable crane A portable crane operable between a first, extended position for lifting loads and a second collapsed position for transportation includes a handle having first and second ends. A boom having first and second ends is provided such that the first end is pi... | 01/28/1997 |
| 5593050 | Bridge crane The invention relates to a bridge crane and more particularly ship's bridge crane, comprising a bridge, which has two transverse bearers extending parallel to one another and constituting a track for the travelling crane and folding lateral parts, respect... | 01/14/1997 |
| 5484069 | Process for self-disassembling a crawler crane A method and apparatus for self-assembling and self-disassembling a large capacity crawler crane. The method uses the load hoist line of a crane to remove the equalizer from the boom. The method also uses a hydraulic cylinder to support, raise and lower t... | 01/16/1996 |
| 5443169 | Crane backhitch A crane gantry assembly includes a gantry pivotally connected to a crane bed, a backhitch pivotally connected to the gantry and detachably connected to the crane bed, and a control link pivotally connected to the backhitch and to the crane bed. The contro... | 08/22/1995 |
| 5217344 | Large, high-capacity automated transportable construction boom for use in open areas A manipulator designed to handle loads on construction or public works si is shown and described. A motorized carrier (1) has an orientable pole (9) and an arm that can be folded and unfolded (16) hinged to the top of the pole and made of several element... | 06/08/1993 |
| 5211297 | Foldable crane There is disclosed a mobile crane having at least one hollow load bearing support member which is rotatable about a base. The load bearing support member is pivotally connected to a hollow boom which telescopically receives a plurality of secondary hollow... | 05/18/1993 |
| 5076448 | Portable hydraulic crane The crane having a generally trapezoidal frame with a caster wheel at each corner. A mast is mounted on the front of the frame with a brace between each rear corner and top of the mast. Spring loaded pins are used for these connections. A lifting ram is p... | 12/31/1991 |
| 5056673 | Gin for electrical equipment A gin or lifting mechanism is provided for relatively heavy electrical equipment, such as transformers and the like. The gin is removably mounted on a pole above a cluster rack which is to receive the electrical equipment. The gin transfers the load of th... | 10/15/1991 |
| 5028198 | Collapsible full reach truck bed hoist A collapsible full reach truck bed hoist includes a pair of elongated tracks adapted for securement onto the truck bed in parallel spaced apart relation. An inverted U-shaped hoist frame has opposite depending legs connected to trolley structures which ar... | 07/02/1991 |
| 5018933 | Device for transferring an invalid to and from an automobile A device (10) for transferring an invalid includes a beam (11) comprised of two telescopically received tubes (12,13); a track (14), slidably engaged within said beam capable of supporting a rolling trolley (15) and connected winch (16) for providing a ve... | 05/28/1991 |
| 5005714 | Crane, in particular a large mobile crane A crane, particularly a large mobile crane, including an undercarriage (1); a revolving joint (3) on the undercarriage (1); and a superstructure on the revolving joint (3). The superstructure includes a central part (5) rotatably mounted on the revolving ... | 04/09/1991 |
| 4990046 | Apparatus for loading containers on to ships and unloading them therefrom An apparatus for loading containers onto and unloading containers from ships, in which the ships receive the containers at locations of varying height, comprises a quayside carrier framework and a travelling carrier system fitted on the carrier framework,... | 02/05/1991 |
| 4988009 | Telescopic boom mobile cranes A telescopic boom mobile crane wherein the boom may be disconnected from the turntable characterized in that the crane vehicle has rollers (or their equivalent) to support the collapsed boom on the vehicle while permitting the boom longitudinally to move ... | 01/29/1991 |
