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| Number | Title | Issue Date |
| 7533778 | Manway opener system and method A cover secured to an opening in a tank may be safely removed by controlling a flow of material stored within the tank through the opening. A remotely controlled actuator is carried by a frame and attached near the opening. An arm connected to the actuator engages t... | 05/19/2009 |
| 7201532 | Method and device for adjusting height of manhole A method and a device for safely and efficiently adjusting the height of a manhole freely allowing the addition and removal of a height adjusting member at any position. The method and device may be used for the manhole formed by installing a tubular shaped frame in... | 04/10/2007 |
| 7077618 | Device for lifting and removing oven doors of a cooking oven The invention relates to a device for lilting and removing oven doors of a coking oven that is comprised of a door removing head (1), which can be coupled to vertically extending oven doors of a horizontal chamber coking oven, of a drive device (3) for... | 07/18/2006 |
| 6945742 | Portable manhole cover remover A manhole cover remover, including an attachment; a support; a pivot arm having a proximal end hinged to the support and the pivot arm having a distal end; a connector joining the attachment to the distal end of the pivot arm; a winch joined to the distal end of the... | 09/20/2005 |
| 6786343 | Portable lift, support and/or installation system and method A system and method for portable lift, support, and/or installation is disclosed which permits and enables these various functions without the need for external crane/lift machinery. The system comprises a channel member (201) attaching means and associated c... | 09/07/2004 |
| 6273401 | Method and apparatus for truck tarp loading The apparatus for covering large object typically comprises one fundamental unit, although a plurality of fundamental units may be used. The fundamental unit comprises four vertical support members, a top rectangular support frame, arms, a plurality of ha... | 08/14/2001 |
| 6164898 | Manhole cover removal apparatus and method In a vehicle of a type including a body carried by a wheeled chassis and a metallic manhole cover removably mounted with a hole accessing an enclosure, an apparatus for removing the manhole cover, the apparatus comprising a gripping member carried by the ... | 12/26/2000 |
| 5382131 | Tool for manipulating heavy objects A carriage supported tool for manipulating a heavy object including a mobile carriage assembly having a carriage supported on wheels, an elongated operating arm, and an elongated clamp-assembly support boom. Both the boom and the arm are attached to the c... | 01/17/1995 |
| 5139619 | Cover lifting device An apparatus and method for raising, moving and lowering a massive coker chute cover are provided. One embodiment of the invention comprises engaging the cover with a lift plate, raising the lift plate, and, moving the lift plate, the course of the moveme... | 08/18/1992 |
| 5035336 | Compact collapsible manhole cover lifter A manually actuated, hydraulic manhole cover lifter (10) comprises a frame (12) mounted on wheels (58) and adapted to straddle a manhole. An actuator (30) is mounted on the frame. The actuator comprises a cylinder (36) connected to a pump (34). A magnet (... | 07/30/1991 |
| 5022489 | Hoisting apparatus for a manhole A hoisting apparatus for a manhole adapted to be fastened to a guardrail of a manhole. The hoisting apparatus is vertically spaced above and extends across the manhole. The hoisting apparatus has two operating positions enabling it to raise an object out ... | 06/11/1991 |
| 4911313 | Linkage lifting apparatus A linkage lifting apparatus is disclosed in which a linkage means is mounted on a lifting beam and includes link pivotal connections which may be connected and disconnected from load hooks comprising part of an object to be lifted. The linkage lifting app... | 03/27/1990 |
| 4865513 | Portable manway cover handling apparatus A boom is mounted within a sleeve for longitudinal translation and the sleeve is hinged to a base plate that is securable by a C-clamp to a superstructure beam in front of a manway cover. An hydraulic actuator bears against the sleeve to adjust its elevat... | 09/12/1989 |
| 4826024 | Gantry crane for maintenance of incinerators and the like A gantry crane for facilitating the installation and removal of cast iron hearth plates in a refractory incinerator includes an elongate rectangular frame assembly having parallel side and parallel end members. An elongate central beam, positioned between... | 05/02/1989 |
| 4789072 | Hydraulic manhole cover lifter A manually actuated, hydraulic manhole cover lifter (10) comprises a frame (12) mounted on wheels (58)and adapted to straddle a manhole. An actuator (30) is mounted on the frame. The actuator comprises a cylinder (36) connected to a pump (34). A magnet (5... | 12/06/1988 |
| 4705180 | Suspended load positioning stabilizing system A wire rope or cable stabilizing system for applying a balancing force to a suspended load to maintain vertical movement of the load perpendicular to the surface upon which the load is to be placed. The balancing force is effected to balance the lateral l... | 11/10/1987 |
| 4668153 | Apparatus for posting materials into and out of enclosures An apparatus for posting materials into and out of an enclosure through a port in a wall of the enclosure. A container for the materials has a lid engageable with a door for the port and the container is supported in a cradle. An interlock bar extends bet... | 05/26/1987 |
| 4664586 | Closure member handling system A handling system supports a closure member, e.g. a manway cover or tensioner ring, for maintaining it in position when opening or closing operations are performed thereon and for moving it conveniently into or out of engagement with a mating member witho... | 05/12/1987 |
| 4662526 | Hoisting mechanism for the cover of a furnace A hoisting mechanism for handling the cover of an electric arc furnace comprises a pivotable gantry base and gantry arms connected thereto which extend over the furnace cover. Traverse bars overlay the gantry arms and are connected to the furnace cover by... | 05/05/1987 |
| 4636136 | Apparatus for opening and closing a vehicle door which is located in a line for manufacturing a vehicle An apparatus for automatically opening and closing a door of a vehicle body which is transferred by a conveyor or is stopped at a predetermined position in a manufacturing process. The apparatus accurately control the opened angle of the door with the gui... | 01/13/1987 |
| 4591308 | Guide jig for lifting an outer wall member of a curtain wall A guide jig for lifting an outer wall member of a curtain wall is constructed principally of a nearly L-shaped arm having two legs extending in two directions making a predetermined angle therebetween. First and second brackets are connected to tip end po... | 05/27/1986 |
| 4463857 | Lifting and swivelling device A method and apparatus for lifting and swivelling a cover of a furnace away from a cauldron of the furnace is disclosed. The apparatus includes a longitudinally moveable and rotatable column housed in a cylinder. A bar, having a longitudinal axis which is... | 08/07/1984 |
| 4412776 | Apparatus for overhauling and repairing doors of horizontal coke-oven batteries To hold coke-oven doors so that they may be worked upon, apparatus is provided comprising a frame tiltable from an erect to a horizontal position, that frame having mounted within it a second frame which has two pairs of pockets which receive the ends of ... | 11/01/1983 |
| 4384652 | Coke-oven-door-extracting apparatus and method A coke-oven door, fitting within its frame with a predetermined vertical play, is extractable therefrom by an apparatus comprising vertically movable lifting elements on a horizontally displaceable support, the lifting elements being operable by a hydraul... | 05/24/1983 |
| 4360310 | Arrangement for positioning a device for closing and opening pressure vessels An arrangement for positioning a device for closing and opening a pressure vessel, has a positioning vehicle arranged to carry the device, and a positioning track attachable to the pressure vessel and extending from just above the floor under the pressure... | 11/23/1982 |
| 4297072 | Manway handling apparatus A manway handling apparatus for handling heavy sealing manways in large shells without damaging sealing surface means therefor is provided which includes a support arm pivotally mountable on equipment having elliptical manway access openings. The support ... | 10/27/1981 |
| 4292137 | Door lifter for coke oven An door lifter for coke ovens is provided with a door lifting or lowering power actuator consisting of two hydraulic cylinders connected in series and in back-to-back relationship. In the case of the door removal, first one of the two hydraulic cylinders ... | 09/29/1981 |
| 4270982 | Turret type, single spot coke oven door machine and guide This invention provides an apparatus for the single spot servicing of a coke oven on the coke side of an oven battery. The apparatus includes a turret with oven servicing heads affixed thereto and mounted for rotational movement on the free end of a suppo... | 06/02/1981 |
| 4268360 | Temporary heat-proof apparatus for use in repairing coke ovens When repairing a gate and vicinity of a coke oven chamber during operation, hot air blowing off the interior of the chamber makes repairs impossible or almost difficult. Disclosed is a temporary heat-proof apparatus capable of preventing such hot air from... | 05/19/1981 |
| 4238036 | Hatch cover crane A hatch cover crane having a hydraulically actuated jack assembly for realigning a hatch cover carried by the hatch cover crane with a ship's cargo hold opening. The jack is extended downward onto one of a pair of support rails, over which the hatch cover... | 12/09/1980 |
| 4225393 | Door-removal device A device for the removal of a coke-oven door, engaging the door frame of a coking chamber by one or more swingable latch arms that are axially loaded by Belleville springs, comprises a support carrying one or more unlatching heads alignable with the swing... | 09/30/1980 |
| 4206848 | Ingot mold cap removing and handling apparatus A lever of the second class is employed to prise a mold cap free of an ingot mold by tipping the cap about a point on its periphery which is in engagement with the mold mouth. The lifting lever is operated by a power cylinder. A carrier for the lever and ... | 06/10/1980 |
| 4151919 | Coke oven hopper truck including support for removable filling cover A coke oven hopper truck is movable along a coke oven cover which has therein filling holes closed by removable filling covers. The hopper truck has supported thereon a lifting device including an electromagnet which lifts and lowers the filling covers fr... | 05/01/1979 |
| 4126520 | Lift-off device for oven chamber doors of a coke oven A lift-off device for the door of oven chambers including a mechanism for gripping the door and counter mechanisms for measuring the movement of the doors to insure that the doors once removed will be accurately and positively repositioned relative to the... | 11/21/1978 |
| 4089424 | Device for removing coke oven chamber door A support is pivoted to a frame and supports a first hydraulic drive for actuating movable jaws to engage removing latches of a door to be removed. The support also supports a separate second hydraulic drive for locking or unlocking a door locking device ... | 05/16/1978 |
| 4019446 | Rail girder for soaking-pit cover A beam structure is described for supporting rails that carry wheeled cover carriages employed to close the openings of chambers in an industrial furnace of the soaking pit type. Each beam is disposed on the median wall between adjacent chambers and is ar... | 04/26/1977 |
| 4009081 | Dust arresting apparatus for a coke dry quenching station An apparatus for arresting the generation of dust from a coke dry quenching station comprising a dust collecting hood mounted on a traveling crane for transferring to the coke dry quenching station a coke bucket loaded with coke discharged from a coke ove... | 02/22/1977 |
| 4003802 | Coke guide machine for a battery of coke ovens A coke guide machine includes a shuttle car carried by rails on a coke bench for a battery of coke ovens. Movable along the shuttle car is a carriage having two support stations that are rotatable about a common vertical axis. The support stations include... | 01/18/1977 |
| 3966060 | Lifting apparatus Lifting apparatus which enables the lid of, for example a coke oven, to be removed during charging and then replaced has engagement means for the lid carried at the end of an arm. The arm is able to be raised and lowered and to be swung through an arc. Th... | 06/29/1976 |
| 3948397 | Coke oven door lifter mechanism A coke oven door lifter for a coke oven door, having a horizontal support bar and a spring biased locking bar, includes a lifter housing or frame having a vertical trackway therein. A movable member is guided in the trackway for vertical upward and downwa... | 04/06/1976 |
