Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7389972 | Lifting system with overload protection circuit A pneumatically operated hoist system including a load support is disclosed, wherein the system is capable of sensing an overload and preventing the raising of the load support. ... | 06/24/2008 |
| 7311298 | Integrated air compressor and winch An integrated air compressor and winch is provided that utilizes a single source of rotary motive power for driving both a winch drum and compressor mechanism. The integrated air compressor and winch is preferably provided with a gear case that is operable to provid... | 12/25/2007 |
| 7261277 | Winches A winch assembly (38) comprising a winch (10) having a winch spool (23), an hydraulic drive motor (15), a clutch (17) for directly coupling the drive motor (15) to the winch spool (23) to effect rotation of the winch ... | 08/28/2007 |
| 7219879 | Apparatus for signaling rotation of a winch to an operator thereof An apparatus for signaling rotation of a winch in which a rotating gear internal in the winch turns an optical disc with alternating segments of distinguishing features. The disc is then in turn read by an optical sensor that can generate a pulsed output signal base... | 05/22/2007 |
| 7201366 | Electronic winch monitoring system An electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, a winch drum connected to the output shaft, and an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydrau... | 04/10/2007 |
| 7192010 | Rollercoaster launch system A winch system, typically used in a roller coaster system, includes a hydraulic pump, a variable speed motor connected to the hydraulic pump, a first pipe connected to the hydraulic pump; a second pipe connected to the hydraulic pump comprising a second pressurized ... | 03/20/2007 |
| 7166061 | Control device for hydraulic winch According to a control device for a hydraulic winch, a regulator controls a motor capacity of a hydraulic motor having variable capacity functioning as a driving source of the hydraulic winch in response to a load pressure, a negative brake stops and retains the hyd... | 01/23/2007 |
| 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 |
| 7119295 | Suspended control device The invention refers to a hanging control device connected to a unit to be managed, specifically control switches or hanging control panels in order to control hoisting gear, by means of a control line, whereby the control line contains electrical lines (2) t... | 10/10/2006 |
| 7097155 | Winch or hoist including a device for signaling when a preset minimum number of cable windings are left on a winding drum A method and apparatus for indicating when only a given minimum preset number of winding layers are present on a drum of a winch. An optical sensor system is included in a space in a hollow housing to count the number of revolutions of the drum and the direction of ... | 08/29/2006 |
| 7063306 | Electronic winch monitoring system An electronic winch monitoring system for a winch having a fixed-ratio gearbox with input and output shafts, a winch drum connected to the output shaft, and an auxiliary brake connected to the output shaft activated by reducing the pressure in a brake release hydrau... | 06/20/2006 |
| 7059588 | Powered strap winder A strap winder (10) is provided for winding up an elongated strap (58). The strap winder (10) is actuated by a power-operated driver, e.g., a pneumatic torque or a wrench (12) or an electric, pneumatic or hydraulic motor (281) and ... | 06/13/2006 |
| 7032887 | Cable winch arrangement and method for the operation thereof The invention relates to a cable winch arrangement with a cable winch, a winch drive and a control device, as well as to a method for the operation thereof. The control device makes it possible to connect in a first operating mode for raising and lowering and a seco... | 04/25/2006 |
| 7004456 | Engine speed limiter for a hoist A mobile service rig for wells includes a hoist powered by an internal combustion engine. In response to the hoist exerting a predetermined lifting force, the lifting force is limited by automatically limiting or reducing the speed of the engine. ... | 02/28/2006 |
| 6830235 | Hydraulic powered capstan attachment A hydraulic capstan to pull electric or communication wire through conduit or open trenches over long distances from a stationary position. The capstan is powered by a hydraulic motor. An operator can activate the motor from inside the cab of a vehicle to turn the c... | 12/14/2004 |
| 6648303 | Control device for hydraulic drive winch A winding-down side pilot port of a control valve is of a 2-port construction comprising a normal winding-down side port having a large pressure receiving area and a free fall side port having a small pressure receiving area, wherein in the free fall oper... | 11/18/2003 |
| 6644629 | Overwinding prevention device for winch A winch over-winding prevention apparatus includes: a winch drum that is driven for up/down hoist in response to a command issued through an operating lever; a stop switch that is activated when a suspended object raised or lowered as a hoisting cable wou... | 11/11/2003 |
| 6619626 | Method for pressure compensation in hydraulic motors in crane operations A method for pressure compensation in reversible motors used to drive hoisting cables and closing cables of a cable operated crane is provided. The method includes connecting a hydraulic motor to hoisting cables, connecting another hydraulic motor to clos... | 09/16/2003 |
| 6585232 | Device for setting and automatic adjustment of the tractive force of a cable of an overhead winch for a ski slope preparation and maintenance machine Device for setting and automatic adjustment of the tractive forces of the cable of an overhead winch for a ski slope preparation and maintenance machine, comprises an adjustment control unit connected to a controllable winch drive; and a processing device... | 07/01/2003 |
| 6571553 | Hydraulic control arrangement for operating a winch with easing, hoisting and mooring modes A hydraulic control arrangement for operating a winch with an adjustable hydraulic motor in the easing, hoisting and mooring modes. The arrangement comprises a pilot controller with a control lever which can be actuated as desired and can be deflected fro... | 06/03/2003 |
| 6543749 | Rollback wrecker vehicle positioning device A vehicle positioning device that installs onto the side of the frame of a rollback wrecker vehicle and is capable of pulling a wrecked vehicle onto the shoulder of a roadway so that the wrecked vehicle is aligned parallel with the roadway, i.e. the desir... | 04/08/2003 |
| 6382595 | Differential hydrostatic transmission system A hydrostatic transmission system for driving a rotatable member includes a differential having an output coupled with the rotatable member, a first hydrostatic drive having an output coupled to a first input of the differential, and a second hydrostatic ... | 05/07/2002 |
| 6371447 | Control method for hydraulic-driven winch and apparatus therefor According to the present invention, when a winch drum is in the wind-down rotation, operating a control valve is operated to the wind-down side in a state in which capacity of a hydraulic motor is set to small capacity by a free fall valve to thereby rota... | 04/16/2002 |
| 6193218 | Cable pulling machine A cable pulling machine in which all of the operative mechanisms are mounted on a trailer for portability. The machine has an internal combustion engine driving a hydraulic pump supplying fluid pressure to a hydraulic motor on a winch spool which holds a ... | 02/27/2001 |
| 6164627 | Device for hydraulically actuating winches in a pipe-laying machine The actuating device, in particular for a pipe-laying machine, according to the present invention comprises a first winch (4) and a second winch (5) for respectively operating a movable gripping element along a side arm of said machine and the side arm it... | 12/26/2000 |
| 6095500 | Winch device A winch device, comprising a drum for storing cable and the like, wherein the device disengageably couples the drum to a winch drum shaft driven by a high torque, low speed hydraulic motor or pump. The motor includes a housing suitable for mounting on a f... | 08/01/2000 |
| 6092789 | Methods and apparatus for boom hoist systems A boom hoist system for supporting and adjusting the position of a lifting crane gantry is provided including a drum, a drive system, and first and second braking systems for selectively stopping rotation of the drum. The boom hoist system operates indepe... | 07/25/2000 |
| 6012707 | Arrangement for controlling tension in a winch cable connected to rock drilling equipment An arrangement for controlling a winch cable connected to rock drilling equipment, the arrangement including the winch; a pressure fluid motor arranged to operate the winch; a pressure fluid pump for operating the pressure fluid motor; a pressure-controll... | 01/11/2000 |
| 5984277 | Method of operating a winch, and associated device The present invention relates to a method of operating a winch, in which a rope which is wound onto a driven reel is supplied to at least one capstan head and wound around said capstan head, with a capstan drive rotating the capstan head and producing a r... | 11/16/1999 |
| 5938183 | Braking assembly for use on a hydraulic winch In a hydraulic winch having a clutch assembly for freeing a drum of the winch for free falling rotation, a control system is provided for controlling operation of the clutch assembly. The supply system includes a directional control valve shiftable betwee... | 08/17/1999 |
| 5842684 | Multi-speed winch A multi-speed winch is attached to a motor vehicle and is hydraulically powered by the vehicle's power steering system or other hydraulic source innate to the host vehicle. The winch operates in either a low-speed, high-torque mode for moving heavy loads,... | 12/01/1998 |
| 5806838 | Hydraulic system for driving a winch during quartering and lifting modes The hydraulic system is used to drive a hydraulic motor for operation in a quartering direction for lowering of cargo as well as for operating the drive motor in a lifting direction. The hydraulic system employs an oil-gas accumulator which accumulates pr... | 09/15/1998 |
| 5800123 | Bladed pump capstan An apparatus for tensioning a subsurface float line and the like during doyment of the line and thereafter includes a capstan rotatably mounted and located in a liquid medium, the capstan having a bore extending from one end of the capstan to the other e... | 09/01/1998 |
| 5794920 | Hydraulic winch assembly using a vehicle steering pump A hydraulic motor is configured to drive a cable spool. A first fluid diverting valve is hydraulically connected between a discharge of a vehicle steering pump and the hydraulic motor. The first fluid diverting valve is configured to divert full fluid flo... | 08/18/1998 |
| 5772184 | Load support mounted control arrangement for fluid pressure operated hoist A control arrangement for a fluid pressure operated hoist has a load mounted handle assembly including tubular handle portion slidable on a support rod attached to the hoist cable, and a bracket fixed at one end to the handle and extending alongside and o... | 06/30/1998 |
| 5735506 | Winch with hydraulic motor especially for helicopter equipped with sonar A winch operates with a hydraulic motor which is supplied by a servo-valve. The servo-valve is connected as a 3-way system so that the supply hose used as a discharge when the load is being winched up is connected directly to the fluid return and so that ... | 04/07/1998 |
| 5692735 | Fail-safe hydraulic vehicle winch A hydraulic winch assembly is attached to a motor vehicle and hydraulically powered by the vehicle's power steering system. A four-way, dual solenoid-operated valve controls the flow of pressurized hydraulic fluid. During normal driving operations while t... | 12/02/1997 |
| 5664765 | Apparatus and method for pulling cable A primary device placed at the upstream end of a duct and a relay device placed at an access point pull a cable through respective duct segments. The pulling speed of the primary device is controlled by an operator. The pulling speed of the relay device i... | 09/09/1997 |
| 5611522 | Hydraulically actuated portable hoist A hoist is operated by a pair of hydraulic cylinders having output rods engaging a spool drum to selectively axially displace the drum on a ball screw to cause wind up of a load cable. The hoist is mounted on a mast and boom supported by a wheeled cart, w... | 03/18/1997 |
| 5474278 | Backpack mounted device for moving loads A compact, light weight, back packable winch and power source, including a cable quick release device to facilitate single handed use of the winch. The power train and cable retrieval mechanisms are mounted on one side of a back pack frame or platform, an... | 12/12/1995 |
