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Class Information
Number: 254/342
Name: Implements or apparatus for applying pushing or pulling force > Apparatus for hauling or hoisting load, including driven device which contacts and pulls on cable > Device includes rotatably driven, cable contacting drum > Drive includes intermeshing gears
Description: Apparatus wherein the drive for the drum includes two or more gears each having teeth formed on their circumference, the teeth of each gear engaging with those of at least one other gear and moving relative thereto when transmitting power from a drive source to the drum.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7458563 |
Tree stand hoist |
Dec. 2, 2008 |
| 7441748 |
Hoisting and pulling device |
Oct. 28, 2008 |
| 7377485 |
Replacement motorized drive unit for boat lifts |
May. 27, 2008 |
| 7377486 |
Support frame of a hoisting machine |
May. 27, 2008 |
| 7232113 |
Draw works |
Jun. 19, 2007 |
| 7226039 |
Hoist assembly for a motor vehicle spare tire |
Jun. 5, 2007 |
| 7226041 |
Winch assembly for a lift structure supportive of a recreational boat and related watercraft |
Jun. 5, 2007 |
| 7159852 |
Manual marine winch internal gearing |
Jan. 9, 2007 |
| 7128307 |
Manual marine winch with compound handle |
Oct. 31, 2006 |
| 7111826 |
Pulling apparatus |
Sep. 26, 2006 |
| 7096999 |
Mast construction for a lift truck |
Aug. 29, 2006 |
| 7017887 |
Winch for boat trailer |
Mar. 28, 2006 |
| 6971278 |
Manual multi-ratio tension-applying device |
Dec. 6, 2005 |
| 6968925 |
Elevator apparatus |
Nov. 29, 2005 |
| 6966544 |
Hoist apparatus |
Nov. 22, 2005 |
| 6942066 |
Elevator apparatus |
Sep. 13, 2005 |
| 6889959 |
Actuating device for emergency operation of a gearless drive machine of an elevator |
May. 10, 2005 |
| 6871842 |
Hand winch handle with release feature that permits cable to wind off of winch drum without handle rotation |
Mar. 29, 2005 |
| 6848675 |
Electrical hoist drive system |
Feb. 1, 2005 |
| 6793203 |
Hoisting gear |
Sep. 21, 2004 |
| 6776397 |
Convertible winch |
Aug. 17, 2004 |
| 6659429 |
Self-locking reduction device |
Dec. 9, 2003 |
| 6619625 |
Hoisting apparatus |
Sep. 16, 2003 |
| 6588731 |
Hoisting and towing device |
Jul. 8, 2003 |
| 6554253 |
Safety latch for a tire carrier and improvements therefor |
Apr. 29, 2003 |
| 6554255 |
Lifting gear |
Apr. 29, 2003 |
| 6520483 |
Hoisting device for an elevator |
Feb. 18, 2003 |
| 6497400 |
Cable control with a simplified assembly |
Dec. 24, 2002 |
| 6481693 |
Power transmission and bearing arrangement for a drum |
Nov. 19, 2002 |
| 6431103 |
Winch |
Aug. 13, 2002 |
| 6250607 |
Self tailing power winch drive |
Jun. 26, 2001 |
| 6241215 |
Portable winch |
Jun. 5, 2001 |
| 6182945 |
Redundant drawworks |
Feb. 6, 2001 |
| 6152426 |
Extensible boom |
Nov. 28, 2000 |
| 6070858 |
Single loop tractioned winch-like device |
Jun. 6, 2000 |
| 6042086 |
Multi-speed winch having epicyclic gear drive |
Mar. 28, 2000 |
| 5927692 |
Winch with epicyclic final reduction gear drive |
Jul. 27, 1999 |
| 5678452 |
Grinder powered device for pulling a chain |
Oct. 21, 1997 |
| 5607143 |
Tree stand winch apparatus and method |
Mar. 4, 1997 |
| 5603489 |
Tree stand winch apparatus and method |
Feb. 18, 1997 |
| 5584207 |
Integrated drive system |
Dec. 17, 1996 |
| 5368279 |
Automatic load responsive winch |
Nov. 29, 1994 |
| 5295664 |
Motor-driven tensioning and winding device for lashing straps including an integrated control of the lashing tension |
Mar. 22, 1994 |
| 5290014 |
Compact tire lift unit |
Mar. 1, 1994 |
| 5284325 |
Hoist with load shifted gear, detector, and motor speed changer |
Feb. 8, 1994 |
| 5271607 |
Bearing structure for hoist/traction apparatus |
Dec. 21, 1993 |
| 5199310 |
Driving device for cable type window regulator |
Apr. 6, 1993 |
| 5176365 |
Vault door opener |
Jan. 5, 1993 |
| 5170995 |
Easily disassemblable compact hoist |
Dec. 15, 1992 |
| 5167400 |
Has invented certain and useful improvements in control device for lifting winches, in particular for drilling rigs |
Dec. 1, 1992 |
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