Shiftable Into And Out Of Intermeshing Engagement Patents (Class 254/345)
  • Patent number: 11349284
    Abstract: A powered fish tape having a rotatable drum is described for pulling electrical wires through conduit or other enclosed regions. The fish tape utilizes an electric motor and a gear assembly for extending or retracting the fish tape and wires attached thereto. The fish tape includes a powered mode and a manual mode. When placed in the manual mode, an operator may manually rotate the drum to extend or retract the fish tape.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: May 31, 2022
    Assignee: Ridge Tool Company
    Inventor: Richard R. Bowles
  • Patent number: 10407287
    Abstract: A chain block includes: a main body frame; and a gear cover that is attached to the main body frame to form an internal space sealed off from an outside between the gear cover and the main body frame, and rotatably supports one end side of a reduction gear member, wherein a gear-side frame part is provided with a bottom part and an outer peripheral wall part projecting from an outer peripheral edge portion of the bottom part, and an upper rib having both ends coupled to the outer peripheral wall part is provided at a portion of the gear-side frame on an upper side where an insertion hole and a link shaft are provided and on a side nearer a center of the internal space than is the outer peripheral wall part, and the upper rib is provided adjacent to the insertion hole and the link shaft.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: September 10, 2019
    Assignee: KITO CORPORATION
    Inventor: Akinori Shirota
  • Patent number: 10053342
    Abstract: Provided is a chain block with which a reduction in size can be achieved while inhibiting a reduction in strength. A chain clock is provided with: a load-sheave hollow shaft which is provided with a load sheave that rotates to feed a load chain, said load-sheave hollow shaft having a hollow core along the axial direction thereof; a drive shaft which is inserted into the hollow core, and which is provided with a flange portion protruding radially outward from one end side to a base side of a separate gear part; and a reduction gear member provided with first reduction gear part which meshes with the gear part. An accommodating recess is provided at the one end side of the hollow core, said accommodating recess having a bottom part which is where the flange part is positioned, and which is in contact with the flange part. An inclined portion, which gradually inclines further towards the gear part side as said inclined portion approaches a center side in the radial direction, is provided to the flange portion.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: August 21, 2018
    Assignee: KITO CORPORATION
    Inventors: Kazumitsu Ishikawa, Hiroki Sano, Kosuke Kosuga
  • Patent number: 9994433
    Abstract: A brake/clutch device for a manual hoist provides an externally-viewable indicator showing the wear status of friction elements within the hoist. The brake/clutch device has a brake block, a brake ratchet, a reversing ratchet, a torsion spring block, a hand wheel and a fastener mounted onto a main shaft of the manual hoist. Friction elements on the brake ratchet provide braking against sudden drops of a load. Ball and spring devices mounted in the hand wheel contact detents and grooves that gradually increase in depth in the torsion spring block depending on the relative positions of the hand wheel and the torsion spring block. The hand wheel has an indicator mark that may align with indicator areas of the torsion spring block to indicate an extent of wear of the friction elements.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: June 12, 2018
    Assignee: JPW Industries Inc.
    Inventors: Qi-Rong Guo, Xiang-Nian Fu
  • Patent number: 9926176
    Abstract: A chain block is provided including a first frame, a second frame, a wheel cover side structure including a wheel cover which covers the hand wheel and residing on an opposite side of the first frame in a direction away from the second frame, and a gear case side structure including a gear case covering a gear member and residing on an opposite side of the second frame in a direction away from the first frame, and each of the first frame and the second frame is provided with a rolling restriction portion restricting rolling along outer circumferences of the first frame and the second frame in a case of a standing posture in which the first frame and the second frame contact an installation part at the same time.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: March 27, 2018
    Assignee: KITO CORPORATION
    Inventor: Kosuke Kosuga
  • Patent number: 8840087
    Abstract: A lifting device with a telescopic pole that has a lower module and an upper module which is mounted in vertical sliding relation with respect to the lower module and which is movable along the pole by a crank handle through a rack-and-pinion drive mechanism. A non-return locking device is automatically implemented by friction coupling mechanism with a drive pinion of the drive mechanism driven by rotating the crank handle for more than one complete turn.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: September 23, 2014
    Assignee: Talbot Decoupage Emboutissage
    Inventor: Francois-Xavier Guyard
  • Patent number: 8579259
    Abstract: Apparatus for a two speed winch assembly are described herein. The winch assembly may be secured to a towing trailer and is arranged to assist in loading and unloading cargo from the trailer. The winch assembly may include mechanisms, systems, and features to make the winch assembly easy to assemble and use, increase the service life of the winch assembly, and improve the consistency of the performance of the winch assembly.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: November 12, 2013
    Assignee: Cequent Performance Products, Inc.
    Inventors: Kawa-She-Quoen Okerlund, Eric Anderson, Todd Walstrom, Joseph J. Peschmann
  • Patent number: 8523147
    Abstract: An electric capstan that is able to easily and accessibly connect external functional models and accomplish multiple functions with good reliability. This electric capstan includes a motor, a reduction gear and a winching roller, and further includes an engagement-disengagement gear and functional module, wherein the input end of the engagement-disengagement gear is connected to the output shaft of the motor and the output end of the engagement-disengagement gear is connected to the input end of the functional module.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: September 3, 2013
    Assignee: Ningbo Chima Winch Co., Ltd.
    Inventor: Mingkui Zheng
  • Patent number: 8066261
    Abstract: A power or manually operated winch mechanism for handling the running rigging lines of a sailing yacht. The winch includes a winding drum, which winds and stores the line during line retrieving operations and controllably releases the line when desired. The new winch, while intended to be driven by on-board electric or hydraulic power, includes a novel mechanism, actuated by a conventional winch handle, for converting the winch to a multi-speed manual operating mode in the event of failure of the on-board power system. A clutch mechanism enables controlled release of line from the winding drum during manual operation, and enables adjustments and emergency release operation when operating in a power mode. Novel level wind features enable the lines to be appropriately tensioned during retrieval, and positively drawn from the drum when the line is not under load. Significant improvement in the safety and convenience of the crew is enabled.
    Type: Grant
    Filed: October 21, 2010
    Date of Patent: November 29, 2011
    Inventor: Samuel J. Mann
  • Publication number: 20110215285
    Abstract: The invention is directed to a gas powered self-contained winch comprising an external casing including a first side wall, a second side wall, a top wall, a bottom wall and a stabilizing bar. The invention includes a combustion engine; a transmission assembly, a gear assembly and a clutch assembly that connect to a spool capable of winding and unwinding a cable wire. A hand controller can communicate with the clutch assembly through a cable wire sufficient to control the winding and unwinding of the cable.
    Type: Application
    Filed: March 8, 2010
    Publication date: September 8, 2011
    Applicant: WIZARD PRODUCTS, LLC
    Inventors: Glenn Akhavein, Joel Chartier, M. Andrew Morrison
  • Patent number: 7891641
    Abstract: A clutch mechanism (75) for use with a machine to disengage the machine until normal operation thereof is commenced. The clutch mechanism (75) includes a clutch engaging member (130) movable into engagement with a notch (77) of the ring gear (76) of a planetary gear stage (70) to engage the clutch, and movable out of engagement with the ring gear (76) to disengage the clutch mechanism (75). The clutch engaging member (130) is spring biased to a position in which the clutch mechanism is engaged. A manually-operated handle (120) moves the clutch engaging member (130) via a link (128) and clutch actuator (122) from a clutch engaging position to a clutch disengaging position.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: February 22, 2011
    Assignee: Ramsey Winch Company
    Inventor: Jonathan A. Miller
  • Patent number: 7793919
    Abstract: Hand winch comprising a wind roll for receiving a flexible elongated member, an operation shaft engaged with the wind roll for transmitting forces therebetween, a friction brake including a gear member being in engagement with the wind roll and having a thrust position in which the gear member acts on a stationary member for generating braking forces directed oppositely to a sense of winding off the elongated member, characterized in that said gear member is movably mounted on the operation shaft such that, in case of winding off the elongated member, the gear member is displaced from a released position to said thrust position.
    Type: Grant
    Filed: November 7, 2008
    Date of Patent: September 14, 2010
    Inventor: Francois-Xavier Guyard
  • Patent number: 7780146
    Abstract: A retrieval assembly is configured and arranged for use with a retractable lifeline assembly including a cable assembly. The retrieval assembly is releasably engagable with the cable assembly to pay out or retract the cable during rescue.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: August 24, 2010
    Assignee: D B Industries, Inc.
    Inventors: Scott C. Casebolt, Vincent G. Meillet
  • Publication number: 20100193755
    Abstract: A hand brake actuator for a rail car has a rotary input connected to a rotary output by a transmission including a clutch and a ratchet wheel and pawl, a declutching mechanism for disengaging the clutch in a declutched position of the declutching mechanism, and a release handle with a first cam which drives the declutching mechanism to the declutched position when the release handle is moved from an apply position to a release position. A second cam is biased in a first direction to engage and retain the declutching mechanism in a declutched position after the release handle is removed from the release position. A follower is connected to the second cam and is responsive to the rotation of the input in an apply direction to rotate the second cam in a second direction opposite the first direction to release the declutching mechanism and allow the clutch to reengage.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 5, 2010
    Applicant: New York Air Brake Corporation
    Inventors: Wayne G. Klasing, Paul Borgarding, Steven R. Newton, Jeffrey F. Sauter
  • Publication number: 20100044660
    Abstract: Ship's winch including a frame which can be attached to a vessel and on which the cable drum and the motor driving the cable drum are provided. Adjacent to the cable drum, a slipping clutch is provided and between slipping clutch and the motor, a freewheel mechanism is provided which works towards the frame. The slipping clutch is embodied not to transmit further load to the freewheel mechanism or motor, respectively, in case of a certain overload caused by tension in the towing cable. In addition, by positioning the freewheel mechanism/clutch in this manner, the motor output for pulling in a certain load under greatly varying stresses can be reduced.
    Type: Application
    Filed: January 18, 2008
    Publication date: February 25, 2010
    Applicant: IMC CORPORATE LISCENSING B.V.
    Inventor: Markus Van Der Laan
  • Patent number: 7614609
    Abstract: A winch including a drum, a motor and a power transmission device. The power transmission device includes a casing and a planetary mechanism assembly having first and second planetary carriers rotatably disposed in the casing; first to third planetary gears rotatably supported on the first and second planetary carriers and engaged with the transmission gear; an annular gear fixed in the casing and engaged with the first to third planetary gears respectively; and a power output member having an input gear portion and an output gear portion, the input gear portion engages with the first to third planetary gears respectively, and the output gear portion engages with the inner drum gear portion of the drum. The winch achieves deceleration function with large speed ratio by a single stage planetary mechanism.
    Type: Grant
    Filed: December 29, 2008
    Date of Patent: November 10, 2009
    Assignee: T-Max (Hang Zhou) Industrial Co., Ltd.
    Inventors: Huizhong Yang, Zhaobo Qing
  • Patent number: 7588233
    Abstract: A winch assembly includes a housing member, a drum rotatably coupled to the housing member, a drive shaft extending through the drum and into the housing member, a gear train located within the housing member and driven by the shaft, a coupling member axially fixed to the shaft, and a clutch assembly including a clutch knob. The shaft is fixed for rotation with and axially displaceable relative to a drive input. The clutch knob is rotatably coupled to the housing member and includes an axially extending ramped surface that axially displaces the shaft in first and second axial directions upon rotation of the clutch knob in first and second rotary directions. Rotation in the first rotary direction rotationally couples the drum to the gear train through engagement with the coupling member and rotation in the second rotary direction disengages the drum from rotational engagement with the gear train.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: September 15, 2009
    Assignee: Warn Industries, Inc.
    Inventors: Erik O. Roe, Darren K. Johnson, Bryon M. Borntrager
  • Patent number: 7556241
    Abstract: A power assisted winch and method include a control system and method for detecting the amount of turning force or torque supplied by a manual input drive to the winch drum, supplying turning force or torque from a motor to the winch drum and controlling the amount of torque supplied by the motor to the winch drum as a function of the amount of turning force or torque supplied by the manual drive. The function may be a fixed predetermined ratio or it may vary depending upon the level of turning force or torque supplied by the manual input drive. A torque sensor may be utilized to detect the level of input manual torque and control apparatus controls the amount of torque supplied by the motor to gearing or coupling driving the winch drum.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: July 7, 2009
    Inventor: Michael J. Geagan
  • Patent number: 7407151
    Abstract: An embodiment of the present invention provides for a jack-winch assembly. The assembly includes a jack; a winch, secured to the jack; and a crank. The crank is independently engageable with the winch and the jack. The crank shifts between a first position, where the crank engages the winch, and a second position, where the crank engages the jack. In another embodiment, a jack-winch assembly is provided that includes a winch; a jack, secured to the winch; and a crank. The winch includes a base; a drum that is rotatably secured to the base; and a gear for driving the drum. The crank is engageable with both the gear and the jack to independently operate the winch and the jack. The crank includes an actuating member to shift the crank between a first position, where the crank engages the gear, and a second position, where the crank engages the jack.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: August 5, 2008
    Assignee: Cequent Trailer Products, Inc.
    Inventors: Kevin M. Rabska, Troy R. Hartwig
  • Patent number: 7383781
    Abstract: A boat lift system for raising and lowering a boat from and into a body of water includes a cradle, a cable and a drive system. The cradle is configured to hold the boat. The cable is connected to the cradle. The drive system includes a reel, a drive mechanism and a cable slack control mechanism. The reel is configured to receive the cable. The reel is rotatable in each of a winding direction to wind the cable onto the reel to raise the cradle and an unwinding direction to unwind the cable from the reel to lower the cradle. The drive mechanism includes a drive member and a motor operable to forcibly rotate the drive member in each of a raising direction and a lowering direction. The drive member is operatively connected to the reel to rotate the reel in the winding direction when the drive member is rotated in the raising direction, and to controllably rotate the reel and/or permit the reel to rotate in the unwinding direction when the drive member is rotated in the lowering direction.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: June 10, 2008
    Assignee: Tide Tamer Industries, Inc.
    Inventor: William Bradley Griffin
  • Patent number: 7273207
    Abstract: A winch includes a first cable reel and a second cable reel. A driveshaft rotates the first cable reel and the second cable reel. The driveshaft is moveable along an axis of rotation between a first position and a second position. The driveshaft operationally engages the first cable reel when in the first position and operationally engages the second cable reel when in the second position.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: September 25, 2007
    Inventor: Ronald M. Studer
  • Patent number: 7156374
    Abstract: 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 through the load sheave along the center axis of the load sheave in a manner allowing the load sheave to be freely rotatable thereabout, one end of the pinion shaft screwed into the center of the hand wheel and the other end of the pinion shaft including a spindle gear, a reduction gear composed of a small-diameter gear and a large-diameter gear, the large-diameter gear in mesh with the spindle gear, a main shaft gear, in mesh with the small-diameter gear, transferring a torque of the reduction gear to the load sheave.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: January 2, 2007
    Assignee: HHH Manufacturing Co.
    Inventor: Iwao Kataoka
  • Patent number: 7140598
    Abstract: A freefall-type windlass includes appropriate gearing for moving the windlass spool in a retrieve direction to wrap anchor cable thereabout or to permit the anchor to drop by gravity thereby unwrapping the anchor cable from the spool. A governor gear is incorporated into the windlass to restrict the rate at which the spool can rotate when the anchor is being paid out thereby avoiding entanglement of the anchor cable and malfunctioning of the windlass.
    Type: Grant
    Filed: November 22, 2004
    Date of Patent: November 28, 2006
    Assignee: Campbell Hausfeld/Scott Fetzer Company
    Inventors: David C. Verakis, David C. McBreen
  • Patent number: 7000904
    Abstract: A cable winch structure for vehicles is disclosed. The cable winch includes a rolling cylinder connected to a speed-reducing device at one lateral side, and having a motor connected to one end of the roller cylinder so that the speed reducing motor transmits the power of the motor to the roller cylinder facilitating traction of the cable and the speed-reducing device.
    Type: Grant
    Filed: June 7, 2004
    Date of Patent: February 21, 2006
    Inventor: Yuan-Hsiang Huang
  • Patent number: 6966544
    Abstract: The invention relates to a hoist apparatus including at least one of a three-part double reeved bottom block that has the same height profile as a two-part bottom block and the same lifting capacity as a three-part bottom block that includes an integral equalizer sheave nest, a device for limiting the rotation of a hoist drum beyond a desired position, a hybrid gear box adapted for use on two different categories and/or types of hoist apparatuses through the use of an adapter plate that permits coupling of the gearbox to the hoist drum of the hoist apparatus in a plurality of configurations and an external ring gear that results in a second output torque and speed of the gearbox, a self-lubricating load braking assembly having lubrication inlet holes and lubrication outlet holes for pumping lubrication into and out of the load brake assembly, a gearbox for use on the hoist apparatus including a two-stage high gear ratio gear set and a load brake assembly, a controller configured to acquire operational data re
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: November 22, 2005
    Assignee: MHE Technologies, Inc.
    Inventors: Stephen J. McCormick, Joseph M. Plasz, Mark E. Ubl, Phillip J. Bartelme, Neal W. Becker
  • Patent number: 6686629
    Abstract: Disadvantages of the floating body of a SOI MOSFET are addressed by providing a pocket halo implant of indium beneath the gate and in the channel region of the semiconductor SOI layer of the MOSFET. Also provided is the method for fabricating the device.
    Type: Grant
    Filed: August 18, 1999
    Date of Patent: February 3, 2004
    Assignee: International Business Machines Corporation
    Inventors: Fariborz Assaderaghi, Werner Rausch, Dominic Joseph Schepis, Ghavam G. Shahidi
  • Publication number: 20030213945
    Abstract: The present invention relates to a convertible winch (A), comprising a basic body (1), motion transmission and reduction means (5; 5′, 5″), for the manual and powered operation, with a mono-direction rotation, and manual or powered operation according to at least two directions, with different rotation speed, and a central hole (4) for the insertion of manual operation means, said motion transmission and reduction means (5; 5′, 5″) providing at least a central gear (5′), a lower gear (5″), and a slidable side gear (21), coupling, by pawls (19, 20), with said central gear (5′) or with said lower gear (5″), determining the rotation according to different speed in function of the rotation direction of the manual or powered operation means, said winch (A) further providing, inside said body (1), means (18) interacting with said slidable gear (21), on which a operable button (14) removably acts, inside said insertion central hole (4) of the manual operation means (18
    Type: Application
    Filed: April 30, 2003
    Publication date: November 20, 2003
    Inventors: Giovanni Antonio Vado, Domenico Manca
  • Publication number: 20030111654
    Abstract: An improved structure of a cable winch used in vehicle is disclosed. The present cable winch provides the user to turn the control button to position a protruded peg at the top edge of the through hole of the gear box, and the control button will pull the transmission shaft and the moving gear thereon and the worm-like spring, thereby the moving gear disengages from the teeth portion of the rolling cylinder and the rolling cylinder is unloaded and rotates freely, and the cable of the winch can be rapidly and conveniently pulled out.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 19, 2003
    Inventor: Yuan-Hsiang Huang
  • Publication number: 20020171072
    Abstract: A two speed windlass includes a driving shaft, a clutch and a planetary gear speed reducing mechanism. The clutch is used to connect the driving shaft to the planetary gear speed reducing mechanism to control the speed of the driving shaft The speed of the two speed windlass, thus, can be reduced by the speed reducing mechanism. The integral speed also can remain the same by synchronously driving the speed reducing mechanism.
    Type: Application
    Filed: May 18, 2001
    Publication date: November 21, 2002
    Inventor: Lin Tso-Kuo
  • Patent number: 6299140
    Abstract: Traction and traction-loading hoists which are mounted on vehicles for improving their progression capability, for helping other vehicles which are blocked, for dragging loads onto the platforms of vehicles as well as for lifting or lowering loads. The hoist of the present invention comprises the following members mounted on two supports: a winding drum, a winding drum switching mechanism that disconnects the drum for unwinding more rapidly the hoist cable, a reduction gear which is in the shape of one conical and one planetary gears connected by a linking shaft and has a lower reduction ratio than that of the current ones; and a mechanism for stopping the winding drum which is made in the shape of a toothed free-wheel clutch. In order to lower a load which has been previously lifted, the hoist comprises a brake system usually connected to an energy accumulator.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: October 9, 2001
    Inventor: Alexandr Konstantinovich Kamljuk
  • Patent number: 5697599
    Abstract: A winch device which may be truck-mounted and operated by the truck's 12 volt electrical system utilizes an automotive starting motor that interacts with a large diameter disc-like gear. A brake drum and a winch drum are coaxially associated with one face of the disc gear. A brake cable is slidably wound upon the brake drum. A brake lever is provided to control the tension upon the brake cable with consequent adjustment of braking force. A tether is spirally wound upon the winch drum.
    Type: Grant
    Filed: August 15, 1995
    Date of Patent: December 16, 1997
    Inventor: George K. Lamb
  • Patent number: 5575456
    Abstract: A lever operated tool, such as a chain hoist, is provided with a free wheel mechanism allowing a lift wheel to be selectively disconnected relative to a driving gear in response to rotations of a manual control knob. The knob controls sliding movement of a driven gear mounted for rotation with the lift wheel between first and second positions in which it is engaged with and removed from engagement with the driving gear.
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: November 19, 1996
    Assignee: Columbus McKinnon Corporation
    Inventor: Julian J. Raphael, III
  • Patent number: 5320572
    Abstract: A toy is hung and is movable on a cord between an upper limit position and a lower limit position. The toy includes a frame unit, a driving device, a planetary gearing, and a cord winding gearing assembly. The driving device has a power source installed on the frame unit, and a first output shaft journalled on the frame unit and driven by the power source. The sun gear of the planetary gearing is sleeved fixedly on the first output shaft so that, when driven by the driving device, the planetary gear of the planetary gearing rotates about the first output shaft. A return spring interconnects the frame unit and the cord winding gearing assembly so as to bias the driving gear of the cord winding gearing assembly to engage the planetary gear of the planetary gearing. The cord winding gearing assembly includes a reel connected to the cord winding gearing assembly so as to be driven by the power source to rotate in a direction, thereby winding the cord thereon.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: June 14, 1994
    Inventor: Hwa-Lo Chen
  • Patent number: 5020737
    Abstract: A device for winding and unwinding a waterski tow-line comprises a substantially enclosed housing having a spool mounted for rotation in the housing. A driven gear is mounted on the spool for rotational driving thereof. A drive shaft is journaled in the housing for rotation and for axial sliding relative to the housing and the drive shaft has a first end portion protruding from the housing and a second end portion extending into the housing. A drive gear is rigidly affixed to the drive shaft for rotation and for axial sliding with it. A spring is mounted in the housing to bias the drive gear into meshing engagement with the driven gear. A crank lever is pivotally connected to the second end portion of the drive shaft by an eccentrically positioned pivot pin.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: June 4, 1991
    Assignee: The Ski-Ease Limited Partnership
    Inventor: Douglas Sehl
  • Patent number: 4974814
    Abstract: A multispeed winch or gear box wherein an axially-movable gear located on a shaft parallel to the drive shaft is movable by operation of a lift mechanism to be in a first position in engagement with a specific gear train or in a second position out of engagement with the gear train. Further, the winch or gear box can have a gear on the drive shaft with a lip or shoulder which can retain the axially-movable gear in the upper or first position after the lift mechanism has moved the axially movable gear to the first position, and the lift mechanism has been withdrawn. This arrangement will permit the gear box or winch to automatically shift from first speed to second speed to third speed upon reversal of the drive shaft rotation.
    Type: Grant
    Filed: November 2, 1989
    Date of Patent: December 4, 1990
    Assignee: Maxwell Marine Limited
    Inventor: Graeme M. Cundy
  • Patent number: 4930719
    Abstract: A device for winding and unwinding a waterski tow-line comprises a substantially enclosed housing having a spool mounted for rotation in the housing. A driven gear is mounted on the spool for rotational driving thereof. A drive shaft is journaled in the housing for rotation and for axial sliding relative to the housing and the drive shaft has a first end portion protruding from the housing and a second end portion extending into the housing. A drive gear is rigidly affixed to the drive shaft for rotation and for axial sliding with it. A spring is mounted in the housing to bias the drive gear into meshing engagement with the driven gear. A crank lever is pivotally connected to the second end portion of the drive shaft by an eccentrically positioned pivot pin.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: June 5, 1990
    Assignee: The Ski-East Limited Partnership
    Inventor: Douglas Sehl
  • Patent number: 4884784
    Abstract: An elongate portable winch is set forth powered by a series of rechargeable batteries. The winch is enclosed within an axially symmetrical elongate housing terminating in a securement hook at one end and a reel-in line at the other end securable to a windup drum actuated by an external switch secured to a handle integrally secured to said housing wherein a series of gear reduction drives multiplies the torque output of the apparatus to apply sufficient force to the drum. The securement hook, batteries, electric motor, gears, and windup drum are aligned within the elongate housing to enable ease of portability by use of an associated handle.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: December 5, 1989
    Inventors: Herman J. Nix, Roger D. Nix
  • Patent number: 4809633
    Abstract: A power-operated windlass having a motor that reverses direction to control taking in and paying out of a rope and a shifting mechanism responsive to changes in motor direction which selectively locks and unlocks the rope pulley against rotation in an unwinding direction.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: March 7, 1989
    Assignee: The Scott Fetzer Company
    Inventor: Jose Santos
  • Patent number: 4699360
    Abstract: An automatic three-speed winch comprising a base plate (1), a bollard (2) mounted for rotation relative to said base plate and carrying teeth (7) on its inner surface, arranged to cooperate through intermediate gears, with at least one driving gear (5, 6) around a central shaft (14) of the winch. An element (21, 22) is provided, which is mounted for rotation between a first and a second position about the central shaft (4) of the winch, which element carries three shafts (12, 14, 20), with a pair of gears (8, 11; 18, 19; 10, 13) being mounted for rotation about each shaft. The transition between the three different speeds takes place fully automatically by just changing the direction of rotation of the driving gear, without requiring any further operation on the winch.
    Type: Grant
    Filed: February 2, 1987
    Date of Patent: October 13, 1987
    Assignee: Enkes Marine B.V.
    Inventor: Leonardus J. van der Aa
  • Patent number: 4613292
    Abstract: A rotary fluid pressure device is provided of the type in which a valve spool (47) is axially movable within a spool bore (35). In the normal operating position of the valve spool (47), torque output is transmitted from the gerotor gear set (17) by means of a main drive shaft 53 through one spline connection (51, 49) then through a second spline connection (49, 75) to the output device. The valve spool (47) may be moved axially to a position in which the second spline connection (49, 54) is disengaged, and the device operates in a free-wheel mode. The valve spool (47) may also be moved axially to a position in which a set of teeth (71) on the valve spool engage a set of teeth (69) on the stationary housing, such that the device operates in a locked mode.
    Type: Grant
    Filed: February 1, 1985
    Date of Patent: September 23, 1986
    Assignee: Eaton Corporation
    Inventors: Marvin L. Bernstrom, Steven J. Zumbusch
  • Patent number: 4582299
    Abstract: A marine winch has a winch drum which is totally closed at the top, mounted on a base housing in bearings so as to rotate relative thereto on a vertical axis. The winch drum is driven in a given direction by pulling on a cord which is wound around a self-recoiling pulley in the base housing to thereby rotate the pulley and associated ratchet or clutch means and pinion gear which drives a gear ring on the winch drum. A sprag clutch is operatively connected between the winch and the base housing to prevent rotation of the winch drum in a direction opposite the given direction and to transmit load torque applied to the winch drum to a gear plate to automatically change gear ratios. An infinitely variable hydraulic drive means is also described.
    Type: Grant
    Filed: May 14, 1984
    Date of Patent: April 15, 1986
    Inventor: Ian A. Royle
  • Patent number: 4566674
    Abstract: A winch has a drum and drum gear attached thereto. The drum gear is driven by a pinion gear that is attached to an operating shaft which in turn, is attached to an operating handle. The drum side adjacent the drum gear has a plurality of notches which allows the pinion gear to axially slide therethrough to disengage the pinion gear from the drum gear whereby paying out of the rope can be done without spinning of the pinion gear or the operating handle. The pinion gear can remesh with the driving gear by passing through the notch toward its operating position.
    Type: Grant
    Filed: November 5, 1984
    Date of Patent: January 28, 1986
    Assignee: Fulton Manufacturing Corporation
    Inventors: Edward Ebey, Karl E. Richter
  • Patent number: 4545567
    Abstract: A winch is powered by a motor mounted at one end of a drum through a three-stage planetary drive train disposed adjacent the opposite end of the drum. The motor includes a first drive shaft which extends axially into the interior of the drum. The drive train includes a second drive shaft which extends axially into the interior of the drum toward the motor. A brake-clutch assembly is disposed within the interior of the drum and operably interconnects the first drive shaft and the second drive shaft. The brake-clutch assembly operates automatically in response to the direction of the torque being transmitted between the first drive shaft and the second drive shaft. In operation, the brake-clutch assembly permits the second drive shaft to rotate relative to and power the drum to reel in the load on the cable and then frictionally locks the second drive shaft to the inside diameter of the drum to hold the load on the cable when the motor is stopped.
    Type: Grant
    Filed: April 19, 1984
    Date of Patent: October 8, 1985
    Assignee: Warn Industries, Inc.
    Inventors: Thomas M. Telford, James W. Haase
  • Patent number: 4489308
    Abstract: A system for identifying emergency exits in a building includes a strobe light which is tethered at an elevated location with respect to the floor of the building. The strobe light is normally held at the elevated position by an electromagnet, which electromagnet is kept energized as long as a smoke detector connected thereto does not sense a dangerous level of smoke. As soon as the smoke detector detects smoke above a certain threshold level, the electromagnet is deenergized and the strobe light drops to a position suspended just above the floor. The strobe light includes its own battery source which is connected to the strobe light by a switch which closes when the strobe light is dropped. An electric motor is provided to rewind the tether when the smoke detector no longer indicates an emergency situation. By tethering the strobe light, the light can be dropped beneath the smoke level in the building, allowing people crawling along the floor to determine the location of emergency exits.
    Type: Grant
    Filed: February 3, 1983
    Date of Patent: December 18, 1984
    Inventors: Emanuel L. Logan, Jr., J. William Walsh
  • Patent number: 4461460
    Abstract: A winch (10) is powdered by a motor (20) mounted at one end of a drum (12) through a three-stage planetary drive train (26) disposed adjacent the opposite end of the drum (12 ). The drive train (26) includes elongate drive shaft (25) which extends longitudinally through the interior of the drum (12) toward the motor (20). A brake-clutch assembly (24), disposed within the interior of the drum (12) operably interconnects motor (20) and drive shaft (25). The brake-clutch assembly (24) automatically operates in response to the magnitude and direction of the torque being transmitted between motor (20) and drive shaft (25). In operation, the brake-clutch assembly (24) permits the drive shaft (25) to rotate relative to and power the drum (12) to reel in the loaded drum cable and then frictionally locks the drive shaft (25) to the inside diameter of the drum (12) to hold the load on the drum cable when motor (20 ) is stopped.
    Type: Grant
    Filed: August 10, 1982
    Date of Patent: July 24, 1984
    Assignee: Warn Industries, Inc.
    Inventor: Thomas M. Telford
  • Patent number: 4452429
    Abstract: There is disclosed a planetary gear winch comprising a selectively operable freewheel arrangement therefor. The freewheel arrangement of the invention provides the winch operator with the ability to disengage the winch drum from the planetary gear reduction drive train, under no-load conditions, thereby to allow freewheeling rotation of the winch drum and rapid unwinding of line therefrom.
    Type: Grant
    Filed: December 4, 1981
    Date of Patent: June 5, 1984
    Assignee: Rule Industries, Inc.
    Inventor: Dan C. Muessel
  • Patent number: 4440041
    Abstract: A winch apparatus (8) with a shift control mechanism (10) is disclosed for axially positioning a shaft (66) and effecting low and high speed raising of a load on a winch drum (24) and a centered neutral condition. The winch apparatus (8) advantageously includes first and second piston members (99,100) disposed within a housing (42) and mounted on the shaft (66), first means (122) for fluidically urging the first piston member (99) and the shaft (66) to a first position, second means (124) for fluidically urging the second piston member (100) and the shaft (66) to an opposite position, and centering means (126) for mechanically positioning the shaft (66) therebetween. Easier assembly of the winch apparatus (8) is featured.
    Type: Grant
    Filed: September 17, 1981
    Date of Patent: April 3, 1984
    Assignee: Caterpillar Tractor Co.
    Inventor: Randall R. Bendtsen
  • Patent number: 4420144
    Abstract: A hand hoist or pulling apparatus including a drive clutch assembly, and a drive shaft and transmission gears associated with the assembly for pulling a chain on a load sheave by oscillating a lever. A holding member and a stop lever for preventing the member from movement are provided to hold a pinion on one end of the drive shaft in meshing engagement with the transmission gears and also to hold the pinion disengaged therefrom when the drive shaft is shifted. The holding member is held stationary against rotation, mounted on the clutch assembly and restrained from axial movement by the stop lever which is biased by a spring and pivotally mounted on a side plate.
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: December 13, 1983
    Assignee: Vital Kogyo Kabushiki Kaisha
    Inventor: Koji Nishimura
  • Patent number: RE30881
    Abstract: A manually powered multi-speed winch has an automatic drive disengagement upon drive reversal which is provided by an axially movable member in one drive train which in a first axial position is engageable for drive transmission through a pawl and ratchet unidirectional drive means. The drive means in its drive-transmitting condition prevents movement of the member away from that first position. Upon drive reversal the unidirectional drive means is ineffective either to transmit drive or to maintain the member in its first position and it moves axially to a second position in which the drive means are disengaged. The member is biased towards that second axial position but is manually movable to the first by a control button accessible at the outside of the winch. The button may be lockable to override the automatic disengagement.
    Type: Grant
    Filed: November 6, 1980
    Date of Patent: March 16, 1982
    Assignee: Lewmar Marine Limited
    Inventors: Richard D. J. Huggett, William Cook
  • Patent number: RE33898
    Abstract: A power-operated windlass having a motor that reverses direction to control taking in and paying out of a rope and a shifting mechanism responsive to changes in motor direction which selectively locks and unlocks the rope pulley against rotation in an unwinding direction.
    Type: Grant
    Filed: March 15, 1991
    Date of Patent: April 28, 1992
    Assignee: Campbell Hausfeld/Scott Fetzer Company
    Inventor: Jose Santos