US3899093A - Anti-tipping log skidder - Google Patents

Anti-tipping log skidder Download PDF

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Publication number
US3899093A
US3899093A US352360A US35236073A US3899093A US 3899093 A US3899093 A US 3899093A US 352360 A US352360 A US 352360A US 35236073 A US35236073 A US 35236073A US 3899093 A US3899093 A US 3899093A
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United States
Prior art keywords
frame
cable
guide means
log skidder
roller
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US352360A
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Jan K Allen
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Caterpillar Inc
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Caterpillar Tractor Co
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Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Priority to US352360A priority Critical patent/US3899093A/en
Priority to CA194,376A priority patent/CA1009612A/en
Priority to SE7404734A priority patent/SE388827B/en
Priority to US05/570,984 priority patent/US3976210A/en
Application granted granted Critical
Publication of US3899093A publication Critical patent/US3899093A/en
Priority to CA251,810A priority patent/CA1009613A/en
Assigned to CATERPILLAR INC., A CORP. OF DE. reassignment CATERPILLAR INC., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CATERPILLAR TRACTOR CO., A CORP. OF CALIF.
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Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
    • B60P3/40—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying long loads, e.g. with separate wheeled load supporting elements
    • B60P3/41—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying long loads, e.g. with separate wheeled load supporting elements for log transport

Definitions

  • a log skidder has a pair of upper and lower rollers [56] References C'ted mounted rearwardly of a towing winch to receive a UNITED STATES PATENTS cable therefrom.
  • the cable In normal operation, the cable is 2700481 H1955 Donateni n 254/166 solely guided over the upper roller whereas during the 286974] 1/1959 wi 61 1 214/92 ascent of a steep grade, for example, the cable is fur- 3 086,666 8/1960 Larson v 1 1 214/855 ther received under the lower roller to substantially 3.322.396 5/1967 Hubbard 214/86 A decrease the tipping moment arm imposed on the log 3,477,596 11/1969 Michaelson et al.
  • a conventional log skidder is adapted to skid felled logs to a decking area for subsequent transport to a sawmill or the like. During such a logging operation, the cable of a towing winch is normally attached to a log to draw the log into a raised position, closely adjacent to the log skidder.
  • a substantially large tipping moment arm is imposed on the log skidder when the log is skidded up a steep grade, for example.
  • Such tipping moment arm is occasioned by the disposition of a cable-guiding fairlead guide roller, substantially high on the log skidder. A tipping-over of the log skidder would not only cause damage thereto, but would also subject the operator to bodily harm.
  • An object of this invention is to overcome the above, briefly described problems by providing a log skidder with a second cable guide means for substantially shortening the tipping moment arm during selected phases of log skidder operation.
  • the log skidder comprises a frame having a towing winch mounted thereon to selectively pay-out a cable therefrom for attachment to a log.
  • a first cable guide means is mounted on and vertically above the frame, rearwardly of the towing winch, whereas a second cable guide means is mounted on the frame substantially below the first guide means.
  • the second cable guide means is constructed to selectively receive the cable thereunder from the first guide means to substantially shorten the tipping moment arm of the log skidder.
  • FIG. 1 is an isometric view of a log skidder having a towing winch and attendant first and second cable guide means mounted on a rearward end thereof;
  • FIG. 2 is a partially sectioned, side elevational view of the log skidder
  • FIG. 3 is a rear elevational view of the second cable guide means, taken in the direction of arrows IIIIII in FIG. 2;
  • FIG. 4 is a sectional view of the second cable guide means, taken in the direction of arrows IVIV in FIG.
  • FIG. 5 is a view similar to FIG. 3, but showing the second cable guide means in cross-section.
  • FIG. 6 is a view similar to FIG. 3, but illustrating a modification of the second cable guide means.
  • FIGS. 1 and 2 illustrate a log skidder 10 comprising articulated front and rear frame sections 11 and 12 pivotally connected together by-vertically disposed hinge pin means 13. Suitable actuators (not shown) are operatively connected between the front and rear frame sections to control the relative pivotal movement thereof for steering purposes.
  • the front frame section is mounted on a pair of transversely disposed wheels 14 (one shown) and has an operators cab 15 and a bulldozer 16 mounted thereon.
  • the rear frame is mounted for movement on a pair of wheels 17 and mounts atowing winch l8 thereon.
  • the towing winch has a cable 19 wrapped thereon, adapted to be selectivelypaid-out and paid-in under control of the operator by suitable'control means (not shown) mounted in cab 15.
  • a first cable guide means comprises a guide roller 20 rotatably mounted in a boxlike fairlead 21, secured on the upper ends of a pair of support brackets 22 of a logging frame.
  • the support brackets are secured at their lower ends to rear frame section 12 to thus position the first cable guide means vertically thereabove and rearwardly of the towing winch to receive and guide cable 19 thereon.
  • a second cable guide means comprises a roller 23 rotatably mounted on rear frame section 12 in at least general vertical alignment substantially below and preferably slightly rearwardly of roller 20.
  • roller 23 is rotatably mounted on a shaft 24 by sleeve bearings 25, FIG. 5, and the ends of the shaft are secured to laterally spaced first and second brackets 26 and 27.
  • the brackets are attached to support brackets 28 and 29, secured to frame section 12, by releasable fastening means, such as pins 30 and 31, aligned with the longitudinal axis of the log skidder.
  • bracket 26 has a rectangularly shaped lug 32 which engages a likeshaped slot 33 of bracket 28 to form a key and slot connection thereat.
  • a bracket 27 has a lug 34 formed thereon which engages a like-shaped slot 35 formed on bracket 29.
  • FIG. 6 illustrates a modification of the second cable guide means wherein a roller 23a is rotatably mounted on a bracket 28a, secured to rear frame section 12 by a shaft 24a. Since the roller is constructed to have one side thereof open, cable 19 can be selectively placed thereunder during selected phases of log skidder operation.
  • the operator would merely stop the vehicle and release and subsequently replace pin 30 to position the slacked cable transversely under roller 23.
  • the cable need only be slipped transversely under the free, cantilevered end of roller 23a.
  • the relocation of the cable under the second cable guide means will thus impose a substantially shorter tipping moment arm M on the log skidder (FIG. 2) and will lower the composite center of gravity thereof to eliminate the possibility of vehicle tipping.
  • a log skidder disposed on a longitudinal axis thereof comprising a frame
  • a towing winch mounted on said frame and having a cable wrapped thereon
  • first cable guide means mounted on and vertically above said frame and positioned rearwardly of said towing winch, said cable received and guided over said first cable guide means
  • second cable guide means fixedly mounted on said frame substantially below said first guide means and constructed to define an opening for selectively permitting said cable to be placed thereunder from said first guide means to substantially shorten the tipping moment arm of said log skidder during selected phases of operation thereof
  • said second cable guide means comprising a roller rotatably mounted on and between a pair of first and second support brackets and wherein said first bracket is attached to said frame by releasable fastening means and said second bracket is pivotally mounted on said frame by pivot means whereby release of said releasable fastening means will permit said roller to be pivoted along with said second bracket about said pivot means on said frame to allow insertion of said cable under said roller.
  • the log skidder of claim 1 further comprising a 4 bulldozer assembly mounted on a forward end thereof.
  • said first cable guide means comprises a roller rotatably mounted on a logging frame secured on the frame of said log skidder.

Abstract

A log skidder has a pair of upper and lower rollers mounted rearwardly of a towing winch to receive a cable therefrom. In normal operation, the cable is solely guided over the upper roller whereas during the ascent of a steep grade, for example, the cable is further received under the lower roller to substantially decrease the tipping moment arm imposed on the log skidder.

Description

United States Patent Allen 1 Aug. 12, 1975 [54] ANTI-TIPPING LOG SKIDDER 3,794,296 2/1974 Hasstedt 254/1391 [75] Inventor: Jan K. Allen, Chillicothe, lll. FOREIGN PATENTS OR APPLICATIONS Assignee: Caterpillar Tractor Co Peoria United Kingdom 1,167,662 10/1969 United Kingdom 254/166 [22] Filed: Apr. 18, 1973 [21] A l. No; 352,360 Primary Examiner-Albert .l. Makay Assistant ExaminerDonald W. Underwood Attorney, Agent, or FirmPhillips, Moore, [52 US. Cl. 214/855; 214/92; 254/166 151i 161. c1. B601 1/00 wessenberger Lamp) & Smba'a [58] Field of Search 214/855, 523, 1 PA, 3,
214/86 A, 78, 92, 394; 254/166, 139.1 1 1 ABSTRACT A log skidder has a pair of upper and lower rollers [56] References C'ted mounted rearwardly of a towing winch to receive a UNITED STATES PATENTS cable therefrom. In normal operation, the cable is 2700481 H1955 Donateni n 254/166 solely guided over the upper roller whereas during the 286974] 1/1959 wi 61 1 214/92 ascent of a steep grade, for example, the cable is fur- 3 086,666 8/1960 Larson v 1 1 214/855 ther received under the lower roller to substantially 3.322.396 5/1967 Hubbard 214/86 A decrease the tipping moment arm imposed on the log 3,477,596 11/1969 Michaelson et al. 214 92 Skidder 3 5l5,297 6/1970 Symons 214/85.5 3,762,584 10/1973 Peterson 254/166 7 Claims, 6 Drawing Figures PATENTEU AUG 1 2 9 5 SHEET 1 ANTI-TIPPING LOG SKIDDER BACKGROUND OF THE INVENTION A conventional log skidder is adapted to skid felled logs to a decking area for subsequent transport to a sawmill or the like. During such a logging operation, the cable of a towing winch is normally attached to a log to draw the log into a raised position, closely adjacent to the log skidder. Although such a procedure is normally desirable, a substantially large tipping moment arm is imposed on the log skidder when the log is skidded up a steep grade, for example. Such tipping moment arm is occasioned by the disposition of a cable-guiding fairlead guide roller, substantially high on the log skidder. A tipping-over of the log skidder would not only cause damage thereto, but would also subject the operator to bodily harm.
SUMMARY OF THIS INVENTION An object of this invention is to overcome the above, briefly described problems by providing a log skidder with a second cable guide means for substantially shortening the tipping moment arm during selected phases of log skidder operation. The log skidder comprises a frame having a towing winch mounted thereon to selectively pay-out a cable therefrom for attachment to a log. A first cable guide means is mounted on and vertically above the frame, rearwardly of the towing winch, whereas a second cable guide means is mounted on the frame substantially below the first guide means. The second cable guide means is constructed to selectively receive the cable thereunder from the first guide means to substantially shorten the tipping moment arm of the log skidder.
BRIEF DESCRIPTION OF THE DRAWINGS Further objects of this invention will become apparent from the following description and accompanying drawings wherein;
FIG. 1 is an isometric view of a log skidder having a towing winch and attendant first and second cable guide means mounted on a rearward end thereof;
FIG. 2 is a partially sectioned, side elevational view of the log skidder;
FIG. 3 is a rear elevational view of the second cable guide means, taken in the direction of arrows IIIIII in FIG. 2;
FIG. 4 is a sectional view of the second cable guide means, taken in the direction of arrows IVIV in FIG.
FIG. 5 is a view similar to FIG. 3, but showing the second cable guide means in cross-section; and
FIG. 6 is a view similar to FIG. 3, but illustrating a modification of the second cable guide means.
DETAILED DESCRIPTION FIGS. 1 and 2 illustrate a log skidder 10 comprising articulated front and rear frame sections 11 and 12 pivotally connected together by-vertically disposed hinge pin means 13. Suitable actuators (not shown) are operatively connected between the front and rear frame sections to control the relative pivotal movement thereof for steering purposes. The front frame section is mounted on a pair of transversely disposed wheels 14 (one shown) and has an operators cab 15 and a bulldozer 16 mounted thereon.
The rear frame is mounted for movement on a pair of wheels 17 and mounts atowing winch l8 thereon. The towing winch has a cable 19 wrapped thereon, adapted to be selectivelypaid-out and paid-in under control of the operator by suitable'control means (not shown) mounted in cab 15. A first cable guide means comprises a guide roller 20 rotatably mounted in a boxlike fairlead 21, secured on the upper ends of a pair of support brackets 22 of a logging frame. The support brackets are secured at their lower ends to rear frame section 12 to thus position the first cable guide means vertically thereabove and rearwardly of the towing winch to receive and guide cable 19 thereon.
A second cable guide means comprises a roller 23 rotatably mounted on rear frame section 12 in at least general vertical alignment substantially below and preferably slightly rearwardly of roller 20. Referring to FIGS. 3-5, roller 23 is rotatably mounted on a shaft 24 by sleeve bearings 25, FIG. 5, and the ends of the shaft are secured to laterally spaced first and second brackets 26 and 27. The brackets are attached to support brackets 28 and 29, secured to frame section 12, by releasable fastening means, such as pins 30 and 31, aligned with the longitudinal axis of the log skidder.
As more clearly shown in FIG. 4, bracket 26 has a rectangularly shaped lug 32 which engages a likeshaped slot 33 of bracket 28 to form a key and slot connection thereat. Likewise, a bracket 27 has a lug 34 formed thereon which engages a like-shaped slot 35 formed on bracket 29. Such key and slot connections fully accommodate downward swinging movement of roller 23, about pin 31 upon removal of pin 30, as indicated by the phantom-line position of the roller in FIG. 1
FIG. 6 illustrates a modification of the second cable guide means wherein a roller 23a is rotatably mounted on a bracket 28a, secured to rear frame section 12 by a shaft 24a. Since the roller is constructed to have one side thereof open, cable 19 can be selectively placed thereunder during selected phases of log skidder operation.
Referring again to FIG. 2, normal operation of the log skidder over even terrain would normally require the use of only roller 20 to guide and maintain the cable in its phantomline position 19'. Such disposition will give rise to a substantially long tipping moment arm M between roller 20 and the rotational axis A of wheels 17. Should the log skidder attempt to pull the log up a steep grade, moment arm M would tend to tip the log skidder over backwardly.
In order to eliminate such a possibility, the operator would merely stop the vehicle and release and subsequently replace pin 30 to position the slacked cable transversely under roller 23. In the FIG. 6 embodiment, the cable need only be slipped transversely under the free, cantilevered end of roller 23a. The relocation of the cable under the second cable guide means will thus impose a substantially shorter tipping moment arm M on the log skidder (FIG. 2) and will lower the composite center of gravity thereof to eliminate the possibility of vehicle tipping.
What is claimed is:
l. A log skidder disposed on a longitudinal axis thereof comprising a frame,
a towing winch mounted on said frame and having a cable wrapped thereon,
first cable guide means mounted on and vertically above said frame and positioned rearwardly of said towing winch, said cable received and guided over said first cable guide means, and
second cable guide means fixedly mounted on said frame substantially below said first guide means and constructed to define an opening for selectively permitting said cable to be placed thereunder from said first guide means to substantially shorten the tipping moment arm of said log skidder during selected phases of operation thereof, said second cable guide means comprising a roller rotatably mounted on and between a pair of first and second support brackets and wherein said first bracket is attached to said frame by releasable fastening means and said second bracket is pivotally mounted on said frame by pivot means whereby release of said releasable fastening means will permit said roller to be pivoted along with said second bracket about said pivot means on said frame to allow insertion of said cable under said roller.
2. The log skidder of claim 1 further comprising a 4 bulldozer assembly mounted on a forward end thereof.
3. The log skidder of claim 1 wherein said frame comprises front and rear frames connected together by a vertically disposed pivot means, said towing winch mounted on said rear frame.
4. The log skidder of claim 1 wherein said first cable guide means comprises a roller rotatably mounted on a logging frame secured on the frame of said log skidder.
5. The log skidder of claim 4 wherein said roller is rotatably mounted on a box-like fairlead, secured on said logging frame to confine said cable therein.
6. The log skidder of claim 1 wherein said second cable guide means is disposed in at least substantial vertical alignment, below said first cable guide means.
7. The log skidder of claim 1 wherein said pivot means is at least generally disposed in alignment with the longitudinal axis of said log skidder to permit said roller to be pivoted vertically downwardly upon release of said releasable fastening means.

Claims (7)

1. A log skidder disposed on a longitudinal axis thereof comprising a frame, a towing winch mounted on said frame and having a cable wrapped thereon, first cable guide means mounted on and vertically above said frame and positioned rearwardly of said towing winch, said cable received and guided over said first cable guide means, and second cable guide means fixedly mounted on said frame substantially below said first guide means and constructed to define an opening for selectively permitting said cable to be placed thereunder from said first guide means to substantially shorten the tipping moment arm of said log skidder during selecteD phases of operation thereof, said second cable guide means comprising a roller rotatably mounted on and between a pair of first and second support brackets and wherein said first bracket is attached to said frame by releasable fastening means and said second bracket is pivotally mounted on said frame by pivot means whereby release of said releasable fastening means will permit said roller to be pivoted along with said second bracket about said pivot means on said frame to allow insertion of said cable under said roller.
2. The log skidder of claim 1 further comprising a bulldozer assembly mounted on a forward end thereof.
3. The log skidder of claim 1 wherein said frame comprises front and rear frames connected together by a vertically disposed pivot means, said towing winch mounted on said rear frame.
4. The log skidder of claim 1 wherein said first cable guide means comprises a roller rotatably mounted on a logging frame secured on the frame of said log skidder.
5. The log skidder of claim 4 wherein said roller is rotatably mounted on a box-like fairlead, secured on said logging frame to confine said cable therein.
6. The log skidder of claim 1 wherein said second cable guide means is disposed in at least substantial vertical alignment, below said first cable guide means.
7. The log skidder of claim 1 wherein said pivot means is at least generally disposed in alignment with the longitudinal axis of said log skidder to permit said roller to be pivoted vertically downwardly upon release of said releasable fastening means.
US352360A 1973-04-18 1973-04-18 Anti-tipping log skidder Expired - Lifetime US3899093A (en)

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US352360A US3899093A (en) 1973-04-18 1973-04-18 Anti-tipping log skidder
CA194,376A CA1009612A (en) 1973-04-18 1974-03-07 Anti-tipping log skidder
SE7404734A SE388827B (en) 1973-04-18 1974-04-08 DISAPPOINTED TIMBER TRAILER
US05/570,984 US3976210A (en) 1973-04-18 1975-04-23 Anti-tipping log skidder
CA251,810A CA1009613A (en) 1973-04-18 1976-05-05 Anti-tipping log skidder

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238116A (en) * 1979-06-25 1980-12-09 Plante Jacques F Skidder jack
US4487396A (en) * 1983-09-14 1984-12-11 Hoffman Frederick M Scotch block attachment fitting
GB2258642A (en) * 1991-07-25 1993-02-17 Voith Gmbh J M Hawser mounting arrangement.
US5725200A (en) * 1997-02-28 1998-03-10 Gordon; William F. Snatch block assembly
US5909870A (en) * 1998-02-12 1999-06-08 Funk; James L. Logging tractor accessory
US5967496A (en) * 1998-06-08 1999-10-19 Reimann & Georger Corp. Lifting drum having a self-positioning cable guide
US20090146119A1 (en) * 2007-12-11 2009-06-11 Bailey Alan D Method and means for providing an accessory mounting point at the forward end of an all-terrain vehicle
US20110168961A1 (en) * 2010-01-11 2011-07-14 Christiansen Douglas J Winching Apparatus
US20110168962A1 (en) * 2010-01-12 2011-07-14 Huizhong Yang Cable guiding device
US20160311666A1 (en) * 2015-04-27 2016-10-27 Carl L. Anderson Adaptation of a front winch device on a vehicle to raise a load to the rear of a vehicle

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700481A (en) * 1952-09-11 1955-01-25 Lee A Donatelli Remotely controlled hoist for wrecking trucks
US2869741A (en) * 1957-12-17 1959-01-20 Kauno W Winters Log handling arm attachment for trucks
US3086666A (en) * 1960-08-31 1963-04-23 Robert W Larson Skidder means
US3322396A (en) * 1966-01-07 1967-05-30 John S Hubbard Towing vehicle
US3477596A (en) * 1966-11-23 1969-11-11 Pettibone Mulliken Corp Log skidder with cab-controlled cable binder
US3515297A (en) * 1968-05-02 1970-06-02 Timberjack Machines Ltd Logging vehicle
US3762584A (en) * 1971-12-27 1973-10-02 Caterpillar Tractor Co Log skidder
US3794296A (en) * 1971-08-10 1974-02-26 R Hasstedt Crane and tow unit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2700481A (en) * 1952-09-11 1955-01-25 Lee A Donatelli Remotely controlled hoist for wrecking trucks
US2869741A (en) * 1957-12-17 1959-01-20 Kauno W Winters Log handling arm attachment for trucks
US3086666A (en) * 1960-08-31 1963-04-23 Robert W Larson Skidder means
US3322396A (en) * 1966-01-07 1967-05-30 John S Hubbard Towing vehicle
US3477596A (en) * 1966-11-23 1969-11-11 Pettibone Mulliken Corp Log skidder with cab-controlled cable binder
US3515297A (en) * 1968-05-02 1970-06-02 Timberjack Machines Ltd Logging vehicle
US3794296A (en) * 1971-08-10 1974-02-26 R Hasstedt Crane and tow unit
US3762584A (en) * 1971-12-27 1973-10-02 Caterpillar Tractor Co Log skidder

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238116A (en) * 1979-06-25 1980-12-09 Plante Jacques F Skidder jack
US4487396A (en) * 1983-09-14 1984-12-11 Hoffman Frederick M Scotch block attachment fitting
GB2258642A (en) * 1991-07-25 1993-02-17 Voith Gmbh J M Hawser mounting arrangement.
US5725200A (en) * 1997-02-28 1998-03-10 Gordon; William F. Snatch block assembly
US5909870A (en) * 1998-02-12 1999-06-08 Funk; James L. Logging tractor accessory
US5967496A (en) * 1998-06-08 1999-10-19 Reimann & Georger Corp. Lifting drum having a self-positioning cable guide
US20090146119A1 (en) * 2007-12-11 2009-06-11 Bailey Alan D Method and means for providing an accessory mounting point at the forward end of an all-terrain vehicle
US20110168961A1 (en) * 2010-01-11 2011-07-14 Christiansen Douglas J Winching Apparatus
US8602394B2 (en) * 2010-01-11 2013-12-10 Douglas J. Christiansen Winching apparatus
US20110168962A1 (en) * 2010-01-12 2011-07-14 Huizhong Yang Cable guiding device
US8267379B2 (en) * 2010-01-12 2012-09-18 T-Max (Hang Zhou) Industrial Co., Ltd. Cable guiding device
US20160311666A1 (en) * 2015-04-27 2016-10-27 Carl L. Anderson Adaptation of a front winch device on a vehicle to raise a load to the rear of a vehicle
US10005647B2 (en) * 2015-04-27 2018-06-26 Carl L. Anderson Adaptation of a front winch device on a vehicle to raise a load to the rear of a vehicle
US20180334365A1 (en) * 2015-04-27 2018-11-22 Carl L. Anderson Adaptation of a front winch device on a vehicle to raise a load to the rear of a vehicle

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Publication number Publication date
SE388827B (en) 1976-10-18
CA1009612A (en) 1977-05-03

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Owner name: CATERPILLAR INC., 100 N.E. ADAMS STREET, PEORIA, I

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515

Owner name: CATERPILLAR INC., A CORP. OF DE.,ILLINOIS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CATERPILLAR TRACTOR CO., A CORP. OF CALIF.;REEL/FRAME:004669/0905

Effective date: 19860515