Assignee
ELEPHANT CHAIN BLOCK CO
JP·35 granted patents·406 citations·filing 1980–2002
Top patents by PatentIndex Score
35 records- 0184US6554255B2Lifting gearELEPHANT CHAIN BLOCK CO·Filed 2002·Granted Apr 29, 2003·31 cites·18 claims
- 0278US6371543B1SlingELEPHANT CHAIN BLOCK CO·Filed 2000·Granted Apr 16, 2002·19 cites·1 claims
- 0372US4348011AHoist with improved overload protectionELEPHANT CHAIN BLOCK CO·Filed 1980·Granted Sep 7, 1982·26 cites·8 claims
- 0461USD459855SLifting hookELEPHANT CHAIN BLOCK CO·Filed 2000·Granted Jul 2, 2002·12 cites·1 claims
- 0561US5533712AElectric hoist and traction apparatusELEPHANT CHAIN BLOCK CO·Filed 1993·Granted Jul 9, 1996·24 cites·2 claims
- 0657US6390523B2Belt hoistELEPHANT CHAIN BLOCK CO·Filed 2001·Granted May 21, 2002·7 cites·2 claims
- 0756US6003843ABelt hoistELEPHANT CHAIN BLOCK CO·Filed 1997·Granted Dec 21, 1999·17 cites·7 claims
- 0855US5305989AHoist and traction machine with free rotation controlELEPHANT CHAIN BLOCK CO·Filed 1992·Granted Apr 26, 1994·15 cites·8 claims
- 0954US6062543AHand operated chain block having an improved load chain deviceELEPHANT CHAIN BLOCK CO·Filed 1998·Granted May 16, 2000·20 cites·3 claims
- 1051US6224039B1Chain blockELEPHANT CHAIN BLOCK CO·Filed 1999·Granted May 1, 2001·18 cites·2 claims
- 1151US5957433ABelt hoist including a winding member with an improved belt fixing surfaceELEPHANT CHAIN BLOCK CO·Filed 1997·Granted Sep 28, 1999·15 cites·4 claims
- 1251US5566925AManual chain blockELEPHANT CHAIN BLOCK CO·Filed 1994·Granted Oct 22, 1996·14 cites·9 claims
- 1351US5351937AHoist and traction machine with free rotation controlELEPHANT CHAIN BLOCK CO·Filed 1992·Granted Oct 4, 1994·15 cites·2 claims
- 1449US6007054AHand operated chain block having an improved coverELEPHANT CHAIN BLOCK CO·Filed 1998·Granted Dec 28, 1999·16 cites·5 claims
- 1548US5570872AFree-rotation control apparatus of hoist and traction machineELEPHANT CHAIN BLOCK CO·Filed 1994·Granted Nov 5, 1996·13 cites·7 claims
- 1647US6406001B1Chain lever hoistELEPHANT CHAIN BLOCK CO·Filed 1999·Granted Jun 18, 2002·12 cites·3 claims
- 1747US5472171AFree rotation control apparatus for a hoist and traction machineELEPHANT CHAIN BLOCK CO·Filed 1993·Granted Dec 5, 1995·12 cites·6 claims
- 1846USD459854SLifting apparatusELEPHANT CHAIN BLOCK CO·Filed 2000·Granted Jul 2, 2002·6 cites·1 claims
- 1946US5575457AStructure for controlling braking action of a mechanical brake of a lever type hoist and traction machineELEPHANT CHAIN BLOCK CO·Filed 1994·Granted Nov 19, 1996·13 cites·3 claims
- 2046US5437432AHoist machineELEPHANT CHAIN BLOCK CO·Filed 1993·Granted Aug 1, 1995·12 cites·6 claims
- 2144US5556078AManual hoist and traction machineELEPHANT CHAIN BLOCK CO·Filed 1993·Granted Sep 17, 1996·10 cites·10 claims
- 2243US5544863AManual chain blockELEPHANT CHAIN BLOCK CO·Filed 1994·Granted Aug 13, 1996·9 cites·13 claims
- 2341US5586751AManual chain blockELEPHANT CHAIN BLOCK CO·Filed 1994·Granted Dec 24, 1996·9 cites·3 claims
- 2441US5330036AMechanical brake for a hoist and traction machineELEPHANT CHAIN BLOCK CO·Filed 1993·Granted Jul 19, 1994·8 cites·8 claims
- 2538US6142448ABelt hoistELEPHANT CHAIN BLOCK CO·Filed 1999·Granted Nov 7, 2000·7 cites·3 claims
- 2637US6030015ABelt hoist having improved belt-hook assemblyELEPHANT CHAIN BLOCK CO·Filed 1997·Granted Feb 29, 2000·7 cites·4 claims
- 2737US5401216ABelt tightening deviceELEPHANT CHAIN BLOCK CO·Filed 1993·Granted Mar 28, 1995·9 cites·8 claims
- 2835US6032928AHand operated chain block having improved hand wheelELEPHANT CHAIN BLOCK CO·Filed 1998·Granted Mar 7, 2000·7 cites·3 claims
- 2935US5586752ALoad chain retainment for a chain blockELEPHANT CHAIN BLOCK CO·Filed 1994·Granted Dec 24, 1996·5 cites·6 claims
- 3034US5316267AHoist including guards with chain swelling and twist corrective surfacesELEPHANT CHAIN BLOCK CO·Filed 1992·Granted May 31, 1994·5 cites·4 claims
- 3133US5398912AHoist including brake cover and operating lever couplingELEPHANT CHAIN BLOCK CO·Filed 1992·Granted Mar 21, 1995·3 cites·1 claims
- 3224US5971364AHoist and traction apparatusELEPHANT CHAIN BLOCK CO·Filed 1998·Granted Oct 26, 1999·2 cites·10 claims
- 3323USD424269SWheel cover for chain blockELEPHANT CHAIN BLOCK CO·Filed 1998·Granted May 2, 2000·0 cites·1 claims
- 3418US6241214B1Structure supporting apparatusELEPHANT CHAIN BLOCK CO·Filed 1999·Granted Jun 5, 2001·5 cites·5 claims
- 3516US4436333AHand operated hoist having improved means controlling free rotation of a load sheaveELEPHANT CHAIN BLOCK CO·Filed 1981·Granted Mar 13, 1984·3 cites·5 claims
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