Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 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 |
| 7350650 | Crane bearing assembly An upper bearing assembly for a pedestal crane comprises a partially dome-shaped kingpost head operably engaged by a bearing having a concave bearing face shaped to conform to a segment of said kingpost head, the bearing enclosed within a bearing retainer, the beari... | 04/01/2008 |
| 7347763 | Toy vehicle for children The toy vehicle is characterized in that a rear excavator is fastened to the toy vehicle, that a seat boom is rotatably arranged on a receiving block which is fastened to the toy vehicle, that a support leg is mounted on the receiving block and is pivotable between ... | 03/25/2008 |
| 7328811 | Even reeving system A hoisting crane with an even reeving system having a substantially hollow vertical column, which has a foot, a top and a body disposed between the foot and the top. An annular bearing structure disposed around the substantially hollow vertical column. A jib connect... | 02/12/2008 |
| 7086547 | Travelling working machine This invention provides with a travelling working machine comprising an upper rotating body with a rotating frame and winches, a pair of right and left boom support frames formed in the rotating frame, and axial portions of the winches mounted inside rear portions o... | 08/08/2006 |
| 7055278 | Portable tube cleaning system A portable cannon tube cleaning system that includes a trailer designed to be pulled to the field site of a cannon tube to be cleaned; a mechanism securely mounted to the floor of the trailer for providing vertical height adjustment; a main cleaner chassis assembly ... | 06/06/2006 |
| 6702131 | Construction machine The present invention provides a construction machine in which a plurality of winches are arranged to be overlapped vertically at a rear part of an upper rotating body. Therefore, a space that the winches occupy is reduced, so that the space of the upper ... | 03/09/2004 |
| 6669038 | Self-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 |
| 6494437 | Boom 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 |
| 6193087 | Two arms system Unit cranes consist of three jointed arms (13-15), the middle arm (14) being in the form of a polygon comprising a number of units jointed together, the mobility of the units being arranged by influencing the units internally. The object of the invention ... | 02/27/2001 |
| 6152425 | Boom 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 |
| 5975833 | Swing type hydraulic excavator An upper cover has a curved portion formed in its end portion on the side near a work front for avoiding interference with the work front. The curved portion comprises a recessed surface having a center axis aligned with the axis of a vertical pin of a sw... | 11/02/1999 |
| 5799807 | Mobile crane The present invention relates to a mobile crane with a telescoping jib hinged to its superstructure which jib can be luffed by a luffing ram which is hinged to the telescoping jib and the superstructure, with a guy pole hinged on the rear side of the tele... | 09/01/1998 |
| 5758785 | Lifting system A lifting system for removing and installing equipment on aircraft. The lifting system comprises a base and a lifting assembly supported by the base. The lifting system also comprises linear outriggers and at least one offset outrigger. The linear outrigg... | 06/02/1998 |
| 5754672 | Deflection detective device for detecting the deflection of suspended cargo A deflection device allows deflection correction control of suspended cargo for deflections having both parallel deflection and skew deflection components. The suspended cargo is held by a suspension tool suspended from a trolley via ropes and is carried ... | 05/19/1998 |
| 5445487 | Boom lift apparatus mountable to different support structures A boom lift apparatus includes a boom assembly having an elongated lower mast member, an elongated upper boom member and a coupler member connected to a lower end of the upper boom member and an upper end of the lower mast member such that the upper boom ... | 08/29/1995 |
| 5402898 | Crane having boom rest A truck mounted crane assembly includes a turntable lock, a boom rest which interacts with the piston and cylinder device, and a swing away hoist mount. The turntable lock includes a pin which is manually retractable upon rotation of a handle from a posit... | 04/04/1995 |
| 5387071 | Rotatable recovery vehicle A recovery vehicle (10) having a 360° rotatable hoist unit (22) with a boom member (26) mounted onto a vehicle frame (12), is described. The vehicle frame contains a single rear axle (16) having wheels (18) adjacent the sides (12E) of the vehicle frame. ... | 02/07/1995 |
| 5226776 | Foldable link rod for carrying an operative platform Foldable link rod system to be placed on a travelling frame comprises pivotally suspended link rods (16, 18) for raising and lowering an operation platform (14). A rotating stool (20) constitutes the connection between two link rods (16 and 18) which are ... | 07/13/1993 |
| 5215202 | Mobile vehicular apparatus with aerial cabin A mobile vehicular apparatus for moving an operator around a three-dimensional aerial work location such as an electric cable or wire supported on posts includes a mobile vehicle having a vehicle body, a boom upwardly extensibly and downwardly collapsibly... | 06/01/1993 |
| 5183168 | Mobile vehicular apparatus with aerial cabin A mobile vehicular apparatus for moving an operator around a three-dimensional aerial work location such as an electric cable or wire supported on posts includes a mobile vehicle having a vehicle body, a boom upwardly extensibly and downwardly collapsibly... | 02/02/1993 |
| 5156517 | Removable hoist system A removable hoist system for a doorway of a van which comprises, when in position, a post vertically mounted in the doorway and an arm having one end secured to the post. The arm during operation extends horizontally from the post and a lift mechanism is ... | 10/20/1992 |
| 5100278 | Railroad locomotive crane boom apparatus An improved locomotive crane boom generally indicated at 10 has of a first member 11, second member 12, and third member 13 each pivotally connected at various pivot points to one another and to locomotive crane 14. A series of pistons and cylinders, 19, ... | 03/31/1992 |
| 5077844 | Mechanical apparatus for lifting and moving humans An invalid lifting device is disclosed. A mast is mounted to a frame to rotate about a vertical axis. A boom is mounted to the mast to swing with the mast and to pivot about a horizontal axis. A sling for supporting an invalid extends from the end of the ... | 01/07/1992 |
| 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 |
| 4984695 | Wheel crane A wheel crane wherein the maximum radius of pivotal motion of a boom is minimized and the boom foot mounting point can be positioned as rearwards as possible to realize an increase of the boom length. The wheel crane comprises a lower running body, an upp... | 01/15/1991 |
| 4892202 | Deepwater extended hook travel attachment An apparatus for increasing the available hook raising and lowering distance is attached to a crane or other lifting structure having a boom and at least one lifting tackle utilizing at least one lifting line connected to a prime mover. The apparatus util... | 01/09/1990 |
| 4750628 | Control system for multi-purpose utility vehicle Each pair of wheels is interconnected by a tie-rod assembly. The tie-rod assemblies include ring gears connected with each of the wheels, and drive motors including drive gears mesh with each ring gear whereby the tie-rod assemblies enable synchronous tur... | 06/14/1988 |
| 4700851 | Lightweight, self-powered, transportable crane assembly A lightweight, self-powered, transportable crane assembly is disclosed which includes a frame that can be selectively coupled to and uncoupled from the bed of a transport vehicle or carrier, such as a pick-up truck or trailer. The frame assembly also incl... | 10/20/1987 |
| 4664271 | Stacker-reclaimer including counterbalance weight A stacker-reclaimer with a luffing and slewing mounting supporting a boom structure with a main, forwardly extending boom having a material conveyor running along it, and a rearwardly extending tail boom with a counterbalance weight depending from its rea... | 05/12/1987 |
| 4606469 | Double link level luffing crane To enable the crane driver of a double link level luffing crane to adapt the height of his cab above the ground to the size of the ship to be loaded or unloaded, the drivers cab is mounted at the end of a separate cab link having a hinge connection with a... | 08/19/1986 |
| 4579234 | Self-erecting mobile crane A self-erecting traveling crane having a machinery platform rotatably mounted with respect to a carbody utilizes a concentric support ring, a boom foot carrier pivotably mounted to the platform and rolling on the support ring, and a counterweight carrier ... | 04/01/1986 |
| 4565486 | Device for handling material A device for handling material is shown according to the teachings of the present invention in its preferred form as a mobile tree felling and handling device. In its preferred form, the device includes a mid-frame pivotally mounted to the device frame ab... | 01/21/1986 |
| 4565292 | Cargo handling apparatus with a cargo boom which can be swung in a swivel bearing between two kingposts In cargo handling apparatus with a cargo boom which can be swung between two kingposts, in which the cargo boom is provided at its upper end with an extension 1 which projects beyond the fittings of the main hoist, with a block fitting 2 for an auxiliary ... | 01/21/1986 |
| 4557390 | Suspended counterweight control system An apparatus is disclosed for counterbalancing a load carried by a crane by a counterweight suspended from the mast of the crane. A counterweight height control system is provided for maintaining the counterweight a few inches above the ground during oper... | 12/10/1985 |
| 4552274 | Tricycle and a toy crane assembly removably mounted thereon A toy crane attachment for use with a child's tricycle. The crane includes a main mounting frame which can be easily attached to or removed from the tricycle. The main frame pivotally supports a swivelable frame and boom, with the boom thereby being movab... | 11/12/1985 |
| 4529094 | Articulation for tower crane boom that has a parking position The inner end of a tower crane boom is connected to the top of its tower by two lugs fixed on the tower, each having an upwardly opening slot, and two trunnions fixed on the inner end portion of the boom, one for each lug, each rotatably seatable in the r... | 07/16/1985 |
| 4515282 | Rotatable crane apparatus for a rescue vehicle A rescue vehicle has a crane boom, hoist winch and rescue winch mounted on a crane turret that is rotatable about a vertical axis. A cable from the respective winches are extended along the crane boom to an associated block that is mounted near the outer ... | 05/07/1985 |
| 4508233 | Compact heavy duty lifting crane A Compact Heavy Duty Lifting Crane (CHDLC) for removing and installing heavy objects such as engines and transmission from vehicles. The CHDLC incorporates a feature that allows the vertical lifting angle of the telescoping boom (40) to remain constant as... | 04/02/1985 |
| 4505397 | Apparatus for hoisting materials and placing concrete An apparatus for hoisting materials and placing concrete, having a non-rotating mast and a boom which is swingable horizontally and vertically, and consists of boom segments pin-jointed together in line so as to be foldable only downwardly. A line of conc... | 03/19/1985 |
