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Class Information
Number: 148/586
Name: Metal treatment > Process of modifying or maintaining internal physical structure (i.e., microstructure) or chemical properties of metal, process of reactive coating of metal and process of chemical-heat removing (e.g., flame-cutting, etc.) or burning of metal > Heating or cooling of solid metal > Iron(fe) or iron base alloy > Gear
Description: Process wherein the metal undergoing treatment is a part, which is usually toothed or spiraled and referred to as a gear, by which motion is transmitted from one portion of machinery to another.

Patents under this class:

Patent Number Title Of Patent Date Issued
8444781 Method of strengthening metal parts through ausizing May. 21, 2013
7691212 Rolling element and method of producing the same Apr. 6, 2010
7691213 Case hardened gear and method of producing the same Apr. 6, 2010
7641850 Method and apparatus for strengthening of powder metal gears by ausforming Jan. 5, 2010
7422643 Rolling element and method of producing the same Sep. 9, 2008
6602358 Outer race for constant velocity joint, having improved anti-flaking properties and shaft strength, and process for producing the same Aug. 5, 2003
6488788 Flat plate member with a gear portion and a process for making the same Dec. 3, 2002
6401941 Rack for loading parts for heat treatment Jun. 11, 2002
6330836 Steel for gear drive plate gear and method for producing the drive plate gear Dec. 18, 2001
6315841 Induction hardened forged gear and process for preparing same Nov. 13, 2001
6264768 Method for strengthening of rolling element bearings by thermal-mechanical net shape finish forming technique Jul. 24, 2001
6264886 Sintered metallic alloy, method of manufacturing the sintered metallic alloy, and sintered alloy gear employing the sintered metallic alloy Jul. 24, 2001
6129793 Face-gear forging method Oct. 10, 2000
6129794 Method of manufacturing a gear wheel Oct. 10, 2000
6026700 Tooth form parameters for ground teeth of gear spindle coupling and method of making the same Feb. 22, 2000
6019857 Carburized hardening process and carburized hardened power transmission members Feb. 1, 2000
5868878 Heat treatment by plasma electron heating and solid/gas jet cooling Feb. 9, 1999
5799398 Method for precision gear finishing by controlled deformation Sep. 1, 1998
5785771 Method for manufacturing precision gears Jul. 28, 1998
5690756 Method for producing cast iron gear Nov. 25, 1997
5667603 Hardening process and apparatus for holed flat parts Sep. 16, 1997
5656106 Apparatus and method for net shape finishing of gears Aug. 12, 1997
5562785 Method for manufacturing toothed gears Oct. 8, 1996
5527400 Method and apparatus for machining hardened parts apparatus for machining hardened parts Jun. 18, 1996
5516376 Method of, and apparatus for manufacturing a gear with a central through hole May. 14, 1996
5451275 Apparatus and method for precision gear finishing by controlled deformation Sep. 19, 1995
5213636 Method and apparatus of quench hardening of gear teeth surfaces May. 25, 1993
5082507 Austempered ductile iron gear and method of making it Jan. 21, 1992
4885831 Method for forming a contour hardened gear Dec. 12, 1989
4744836 Method for selectively heating a workpiece subjected to low temperature thermomechanical processing May. 17, 1988
4639279 Single frequency induction hardening process Jan. 27, 1987
4589935 Method of induction hardening of gear teeth May. 20, 1986
4533400 Method and apparatus for laser hardening of steel Aug. 6, 1985
4373973 Method of manufacture of high performance gears Feb. 15, 1983
4343661 Method of making a low temperature bainite steel alloy gear Aug. 10, 1982
4222793 High stress nodular iron gears and method of making same Sep. 16, 1980
4030944 Production of annular products from centrifugally cast steel structures Jun. 21, 1977
4029526 Method of flame hardening gears Jun. 14, 1977
4026732 Method for induction hardening gear teeth May. 31, 1977

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