Quotables
"It is my heart-warmed and world-embracing Christmas hope and aspiration that all of us, the high, the low, the rich, the poor, the admired, the despised, the loved, the hated, the civilized, the savage (every man and brother of us all throughout the whole earth), may eventually be gathered together in a heaven of everlasting rest and peace and bliss, except the inventor of the telephone. "
Mark Twain ; Christmas greetings, 1890
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| Number | Title | Issue Date |
| 8157246 | Deflecting roller with increased chain utilization A deflecting roller for link chains, for example, round link chains or profiled steel chains, presents, on the periphery, chain pockets for lying chain links. Furthermore, chain pockets for standing chain links are provided. The chain pockets for the standing chain ... | 04/17/2012 |
| 8033529 | Ratcheted lift mechanism The present invention is related generally to hoists, and more particularly to a hoist system for safely raising, storing, and lowering loads. ... | 10/11/2011 |
| 7971856 | Drive rope and drive pulley The present invention discloses a drive system for theatrical rigging, comprising a drive rope and a drive pulley. The drive rope has a fiber or cable core, surrounded by a plastic jacket. Formed on or in the surface of the drive rope are traction features that enga... | 07/05/2011 |
| 7621508 | Method and device for storing a traction chain The subject matter of the invention is a device and a method for storing a traction chain, more specifically a self-bracing traction chain. Such a device and such a method for storing the traction chain so that is occupies very little space are provided by having th... | 11/24/2009 |
| 7614610 | Hoisting and pulling device A hoisting and pulling device including a main body frame 2 for forming a load sheave containing space by constituting an inner face by a guide face 25a for guiding a load chain 5 wound around a load sheave, a bearing plate 21b ... | 11/10/2009 |
| 7575223 | Overload preventing apparatus in hoist An overload preventing apparatus of a hoist characterized in including a drive shaft 2 for driving a load sheave 1, a pressure receiving member 4 outwardly fitted to the drive shaft 2, a drive member 10 for transmitting a drive for... | 08/18/2009 |
| 7571895 | Rope sheave The invention provides a rope sheave having two substantially opposed faces, each face having a plurality of ridges extending from an inner circumferential region of the face to an outer circumferential region of the face. The ridges are arranged such that those por... | 08/11/2009 |
| 7520490 | Anchor winch An anchor winch has a casing assembly, a motor, a capstan and a chain. The casing assembly has a casing, a guiding cover, a spring and a guiding rail. The guiding cover is mounted on the casing and selectively opens. The spring is connected to the casing and the gui... | 04/21/2009 |
| 7441748 | Hoisting and pulling device A hoisting and pulling device has a frame body (13) made by integrally forming a speed reducer side frame (13b) on an outer peripheral edge surface of the frame body, a drive side frame (13a) on the outer peripheral edge surface of... | 10/28/2008 |
| 7401765 | Winching and drawing machine A winching and drawing machine comprises a drive shaft for driving a load sheave, a pressure receiving member fitted onto the drive shaft, brake plates installed in contact with the pressure receiving member and fitted onto the drive shaft, a pawl wheel interposed b... | 07/22/2008 |
| 7380770 | Hoist device having selective power source The hoist device mainly contains a gear assembly and a ratchet braking assembly. The gear assembly mainly contains a chain wheel driven by a main axle running through the ratchet braking assembly which mainly contains a ratchet wheel sandwiched between a pair of bra... | 06/03/2008 |
| 7360752 | Apparatus and method for installing lines in conduits An apparatus for placing lines in a conduit is disclosed. The apparatus uses a battery powered electric fan in an aerodynamically shaped body to fly through the conduit pulling a jet line. The apparatus is used instead of “fish” tape, vacuum, or compressed air t... | 04/22/2008 |
| 7344121 | End surface gear-type overload protection device for manually operated hoists An end surface gear-type overload protection device for manually operated hoists that utilizes a disc-shaped spring to control tension such that when the gears are in a leftward rotation and engagement, operation continues normally. However, during rightward rotatio... | 03/18/2008 |
| 7284745 | Portable raising and lowering device and equipment therefor A raising and lowering device, particularly suitable for incapacitated human or animal patients. The device includes a load carrying support having at least one elongated arm including a proximal end section and distal end section. The arm is pivotable on the device... | 10/23/2007 |
| 7275733 | Compact drive for a counterweight assisted winch The invention is a compact drive for a counterweight-assisted winch which can be retrofitted into existing manually operated systems that use counterbalancing weights. The counterbalancing weight will be fixed at a first predetermined percentage of the maximum capac... | 10/02/2007 |
| 7264228 | Counterweight assisted winch The invention is a motorized winch which can be retrofitted into existing manually operated systems that use counterbalancing weights. The counterbalancing weight will be fixed at 50% of the maximum capacity of the set. The winch is rated at 50% of the maximum capac... | 09/04/2007 |
| 7156374 | Chain block A chain block comprising a load sheave winding up a load chain, a hand wheel arranged on one side of the load sheave and rotatable in one of a normal direction and a reverse direction in response to the manual operation of a hand chain, a pinion shaft inserted throu... | 01/02/2007 |
| 7137618 | Power-assisted cable-pulling device The invention involves a hand held, power-assisted cable-pulling apparatus. The hand held, power-assisted cable-pulling apparatus has a housing, a take-up wheel, a drive transfer coupling, at least one dog pawl, a line, and a ground fixation mechanism. The housing h... | 11/21/2006 |
| 7108248 | Cable pulley block having detachable fastening of a cable to a cable drum The invention concerns a detachable fastening of a cable (2) on a cable drum (1), especially a wire cable, with an opening (1a) arranged in the cable drum (1), with an enlarged cable end (2a) on the cable (2) a... | 09/19/2006 |
| 7104214 | Fairlead with integrated chain stopper The present invention is a fairlead for guiding and securing an anchor chain between an offshore structure and an anchor. The fairlead comprises a fairlead frame, a pivoting latch, and an actuator. The fairlead frame is pivotally mounted to the offshore structure an... | 09/12/2006 |
| 7080824 | Chain motor drive controller An improved chain motor drive controller is provided for a chain hoist. The system employs a position encoder including a position sensor located within the casing of the chain hoist to producing encoded electrical position signals. A motor pulley is mounted on the ... | 07/25/2006 |
| 6966545 | Chain block A chain block with a drive motor (2) with a motor shaft (11), which is connected at the take-off side via a slip clutch (50) to a transmission input shaft (14), having a first gear (18a) and mounted in a housing (1) b... | 11/22/2005 |
| 6905432 | Chain drive arrangement A chain drive for pivot chains (7) or round link chains (8) having spur gears (2) and a polygonal chain wheel (10) reduces variations in velocity and acceleration transferred to the chains (7), (8). The driven gear wheel ( | 06/14/2005 |
| 6857840 | Removable load bed for a vehicle A loading apparatus for a vehicle, the apparatus having a first frame; a second frame having a chain mounted thereupon; and a locking system that is mounted on the first frame. The locking system has a drive wheel, a first arm member and a second arm member. The sys... | 02/22/2005 |
| 6820863 | Portable motorized chain driver A portable, motorized chain driver for lifting and lowering loads by attaching the chain driver to a manual chain hoist for driving the chain. The chain driver comprises a chain and rotor housing attached to a compact electrical or gas driver unit with an angled hea... | 11/23/2004 |
| 6557828 | Pneumatic motor and pneumatic hoist apparatus installed with the same A pneumatic motor is provided with twin cylinders each with a piston installed therein slidably, disposed horizontally adjacent in a direction parallel to axis of a motor shaft interposed between the twin cylinders and arranged in a direction intersecting... | 05/06/2003 |
| 6554255 | Lifting gear A lifting gear, which is provided with a load-sheave that shifts a sinuate body in the longitudinal direction thereof and a rotary body that rotates the load-sheave, and in which the rotary body include a power connecting section that can be coupled to an... | 04/29/2003 |
| 6450482 | Lifting device The invention relates to a lifting device for raising, lowering and pulling loads. The lifting device includes a hand chain wheel which can be turned in both directions by a hand chain. The hand chain wheel is coupled to a load wheel, which moves a load c... | 09/17/2002 |
| 6427982 | Hoist apparatus The hoist apparatus includes a chain for raising or lowering an object; an upper hook member; a hoist body member suspended by the upper hook member; a lower hook member for hoisting the object mounted to the hoist body member at a bottom end thereof for ... | 08/06/2002 |
| 6286816 | Chain hoist A chain hoist, includes a chain which is trained over first and second sprockets defining a movement path for the chain, with the first sprocket being connected to a load-bearing member, and with the second sprocket being part of a drive unit for operatin... | 09/11/2001 |
| 6224039 | Chain block A chain block which can ensure free rotation of a hand wheel when the hand wheel is rotated in a hoisting direction in the state in which an overload protection mechanism is in operation and also can ensure the lowering of a load when the hand wheel is ro... | 05/01/2001 |
| 6209852 | Removable chain hoist position encoder assembly A chain hoist having a casing into which and with respect to which a chain travels is provided with an externally mounted position encoder assembly. A releasable connector, such as a ratchet strap, is employed to firmly but removably couple the position e... | 04/03/2001 |
| 6199830 | Chain elevator The invention relates to a chain elevator comprising an elevating chain (1) made up of links (2) attached to each other, whereby the planes formed by adjacent links are primarily at a 90° angle in relation to each other; an elevating element (3) having a... | 03/13/2001 |
| 6062543 | Hand operated chain block having an improved load chain device A hand operated chain block which is capable of fixing an end of a load chain of unloading side and also ensuring smooth wind up and down operation of the load chain, while reducing the size of chain block. In the hand operated chain block, the fixing pin... | 05/16/2000 |
| 6032928 | Hand operated chain block having improved hand wheel To provide a hand operated chain block capable of being downsized while enabling a hand chain to be easily wound over a hand wheel without disassembling the hand wheel from a chain block body when the hand chain is seated in the hand wheel, a hooking groo... | 03/07/2000 |
| 6007054 | Hand operated chain block having an improved cover To provide a hand operated chain block capable of facilitating the fitting of the brake cover to the related side plate without worsening the appearance of the chain block, a brake cover is provided, at a marginal portion therearound, with a flange portio... | 12/28/1999 |
| 5975203 | Apparatus and method utilizing a coiled tubing injector for removing or inserting jointed pipe sections Apparatus and method for pulling or inserting jointed pipe sections (18) having upset ends (20) within a well utilizing a coiled tubing injector (26). The coiled tubing injector (26) has a pair of opposed endless chains (50, 52) including gripper blocks (... | 11/02/1999 |
| 5971364 | Hoist and traction apparatus In order that an operating lever for a hoist and traction apparatus is combined as a unit to ensure the smooth operations so as to provide an improved workability with achieving a downsizing, a driving member of the hoist and traction apparatus is provide... | 10/26/1999 |
| 5899441 | Chain hoist with a brake acting on both sides of the clutch In an electric chain hoist, there is a slipping clutch in the drive line which connects the electric motor to the chain sprocket, the slipping clutch acting as an overload safeguard. A holding brake is also provided to hold the drive line in the braked st... | 05/04/1999 |
| 5853165 | Chain hoist with a clutch adjustable by means of the brake A chain hoist contains a slipping overload clutch in the drive line which connects the electric motor to the chain sprocket. This slipping clutch has two clutch halves which are in frictional engagement with one another and are preloaded into frictional e... | 12/29/1998 |
