METAL LEVE S.A. INDUSTRIA E COMERCIO, A CORP. OF BRAZIL

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 452
 
  
 
F01B MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES 423
 
  
 
F02F CYLINDERS, PISTONS, OR CASINGS FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES 431
 
  
 
F16C SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OF CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS 466
 
  
 
F16J PISTONS; CYLINDERS; PRESSURE VESSELS IN GENERAL; SEALINGS248
 
  
 
F02B INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL 171

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6112715 Piston for an internal combustion engineMar 19, 99Sep 05, 00[F02F]
5707155 Multilayer sliding bearingJun 28, 95Jan 13, 98[F16C]
5628577 Wrist pin for a two-piece pistonJun 16, 94May 13, 97[F16C]
5588351 Head for two piece articulated pistonOct 28, 94Dec 31, 96[F02F, F16J]
5560334 Piston with a reinforcing insertJun 23, 95Oct 01, 96[F02B, F02F]
5394788 Head for articulated pistonFeb 01, 94Mar 07, 95[F01B]
5359922 Head of two welded parts for two-piece articulated pistonJan 27, 94Nov 01, 94[F16J]
5317958 Head for a two piece articulated pistonMar 01, 93Jun 07, 94[F01B]
5309818 Method for the manufacture of a cooled pistonJan 11, 93May 10, 94[F01B]
5284393 Sliding bearingFeb 21, 92Feb 08, 94[F16C]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6221515 Bimetallic strip for a sliding bearing and process for producing said bimetallic stripExpiredAug 13, 99Apr 24, 01[C22F, B32B]
5156729 Method of making a plain bearing sliding layerExpiredNov 01, 89Oct 20, 92[C25D]
5144923 Method for the manufacture of a two piece piston and pistonExpiredOct 18, 91Sep 08, 92[F02F]
5115726 Two-piece piston assemblyExpiredOct 20, 89May 26, 92[F02F]
5070768 Articulated pistonExpiredJul 11, 89Dec 10, 91[F01B]
5065508 Two-piece piston and method of manufacturing the sameExpiredOct 19, 89Nov 19, 91[B23P]
5058488 Means for preventing the build-up of carbon deposits on pistonsExpiredOct 19, 89Oct 22, 91[F16J]
5056936 Multilayer plain bearingExpiredOct 17, 89Oct 15, 91[F16C]
4735128 PistonExpiredFeb 05, 86Apr 05, 88[F02F]
4547336 Method for the manufacture of piston ring inserts by a powder metallurgy techniqueExpiredJan 04, 83Oct 15, 85[B22F]
4545913 Plain bearingsExpiredSep 23, 83Oct 08, 85[C10M]
4461585 Sleeve bearing composed of halfshells having different eccentricitiesExpiredDec 20, 82Jul 24, 84[F16C]
4406857 Alloy for antifriction bearing layer and process of forming an antifriction layer on steel supporting stripExpiredSep 22, 81Sep 27, 83[B22F, C22C]
4365399 Manufacture of light weight pistonsExpiredSep 15, 80Dec 28, 82[B23P, B22D]
4358881 Method for manufacturing a piston with a separate skirtExpiredSep 11, 79Nov 16, 82[B23P, F16J]
4333775 Method of producing aluminum alloy compositeExpiredJul 01, 80Jun 08, 82[C22F]
4267241 Method of preparing steel-backed antifriction alloy, composite strips and products therefromExpiredSep 11, 79May 12, 81[C23C]

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