| Patents for B24B 11 - Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor (784) |
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| 09/22/1993 | CN2142383Y Axle bush lubricant protecting device |
| 09/16/1993 | DE4208049A1 Machine for lapping and polishing steel balls - has grooved lapping plates elastically coupled to backing discs so that rotating plate can be radially displaced to vary ball rolling axis |
| 07/07/1993 | CN2137579Y Processing device for jewelry |
| 06/01/1993 | US5214884 Ball polishing apparatus and method for the same |
| 05/27/1993 | DE4224139A1 Fine grinding process for generating rounded end on slender shaft - uses grinding tool in form of thick rotating rod with cup shaped end fed angularly against rotating shaft end |
| 01/14/1993 | DE4122059A1 Cleaning-polishing device for billiard balls or bowls - consists of plate with felt replaceable surface, drive unit, holder with ball containers, and opening |
| 12/24/1992 | DE4219988A1 Machine for deburring, grinding and lapping steel balls - has return chute to hopper shaped to ensure that recirculated balls fall into hopper bowl at varying radii |
| 10/13/1992 | US5154020 Spherical surface machining apparatus and transporting apparatus therefor |
| 08/19/1992 | EP0499182A1 Ball pushing device |
| 06/03/1992 | CN2106035U Machine for grinding steel ball |
| 05/14/1992 | DE4035761A1 Centreless grinding of end faces of rollers - involves first disc mounted eccentrically to second disc which carries rollers |
| 04/08/1992 | CN2100958U Steel ball grinding machine |
| 03/25/1992 | EP0316381B1 Lapping-machine, especially for fine surface-machining of bearing balls |
| 03/04/1992 | EP0231397B1 Grinder for core of optical connector and core grinding method |
| 09/26/1991 | DE4007780A1 Process for grinding and lapping accurate balls - involves machining holes in fixed lapping plate to interrupt tracks and vary ball rolling axis |
| 09/11/1991 | EP0445988A2 Spherical surface machining apparatus and transporting apparatus therefore |
| 06/25/1991 | US5025595 Method and device for finishing a concave spherical bearing surface on a roller segment, particularly for a homokinetic joint |
| 05/07/1991 | US5012619 Method and apparatus for forming spheres |
| 04/17/1991 | EP0383910A4 Method and cassette for abrasive machining of the surface of parts |
| 04/02/1991 | US5003728 Machine for abrasive treatment |
| 03/20/1991 | CN2073345U Machine tool for grinding ceramic |
| 01/31/1991 | DE3928113C1 Precision grinding machine tool holder - has top part swinging on horizontal axis while workpiece holder rotates on vertical axis |
| 01/02/1991 | CN2068446U Ball teeth head of jump bit repairing machine |
| 10/30/1990 | US4965967 Apparatus for low stress polishing of spherical objects |
| 08/29/1990 | EP0383910A1 Method and cassette for abrasive machining of the surface of parts |
| 06/06/1990 | EP0371833A1 Method of and device for finishing a spherical, concave bearing surface on a roller segment, in particular for a homokinetic joint |
| 02/27/1990 | US4903439 Method for grinding rough-shaped objects to a clean spherical form |
| 01/03/1990 | CN2050360U Special grinding machine for external surface of ball |
| 12/20/1989 | CN2049580U Grinder for contact of automobile distributor |
| 12/12/1989 | US4885873 Abrading apparatus for spherically shaping workpieces |
| 08/24/1989 | WO1989007508A1 Method and cassette for abrasive machining of the surface of parts |
| 08/15/1989 | US4856231 Machine for grinding large balls |
| 05/24/1989 | EP0316381A1 Lapping-machine, especially for fine surface-machining of bearing balls. |
| 03/22/1989 | EP0307477A1 Machine tool for abrasive machining |
| 02/15/1989 | CN2032526U Grinding machine for shaping axle journal |
| 01/04/1989 | EP0297551A1 Machine for grinding big balls |
| 12/14/1988 | CN87213650U Automatic ball-milling machine |
| 11/17/1988 | WO1988008771A1 Lapping-machine, especially for fine surface-machining of bearing balls |
| 09/22/1988 | WO1988006949A1 Machine tool for abrasive machining |
| 08/30/1988 | US4766698 Apparatus for finishing the face of the head of a golf club wood |
| 06/21/1988 | US4751797 Abrasive sheet and method of preparation |
| 01/26/1988 | CA1231928A1 Process and device for rounding off granular particles of solid material |
| 12/23/1987 | CN87103132A Grinding method for the rollaway nest of thrust ball bearing |
| 08/12/1987 | EP0231397A1 Grinder for core of optical connector and core grinding method |
| 05/21/1987 | DE3639264A1 Apparatus for the copy-grinding of cylindrical and spherical surfaces |
| 02/12/1987 | WO1987000785A1 Grinder for core of optical connector and core grinding method |
| 12/10/1986 | EP0204561A2 Method for manufacture of ceramic parts |
| 06/03/1986 | US4592707 Device for rounding off granular particles of solid material |
| 05/06/1986 | US4586292 Machine imparting complex rotary motion for lapping a spherical inner diameter |
| 11/07/1985 | WO1985004828A1 Apparatus for spherically processing end surface of rodlike member |
| 09/17/1985 | US4541204 Apparatus for manufacturing substantially spherical objects to a high degree of roundness |
| 04/30/1985 | US4513537 Device for preparing thin specimens |
| 12/19/1984 | EP0128779A2 Spherical surface grinding device |
| 10/09/1984 | US4476071 Process for rounding off granular particles of solid material |
| 07/25/1984 | EP0023921B1 Manufacture of sponge rubber spheres |
| 06/29/1983 | EP0082816A2 Method and device for rounding off solid granular particles |
| 02/01/1983 | US4370772 Device for gentle treatment of spherical balls |
| 09/15/1982 | EP0020502B1 Method and apparatus for grinding piston rings |
| 06/16/1982 | EP0053866A1 Method of grinding rough-shaped objects to a clean spherical form |
| 01/26/1982 | CA1116863A1 Method and apparatus for grinding piston rings |
| 06/09/1981 | US4271639 Manufacture of sponge rubber spheres |
| 02/04/1981 | EP0020502A4 Method and apparatus for grinding piston rings. |
| 01/07/1981 | EP0020502A1 Method and apparatus for grinding piston rings. |
| 08/26/1980 | CA1084548A1 Piston ring assembly and method of making same |
| 08/21/1980 | WO1980001664A1 Method and device for gentle treatment of spherical balls |
| 08/21/1980 | WO1980001663A1 Manufacture of sponge rubber spheres |
| 08/12/1980 | US4216629 Method and apparatus for producing balls |
| 06/24/1980 | US4208845 Method for grinding piston rings |
| 05/14/1980 | EP0010648A1 Method and apparatus for precision manufacturing of balls |
| 04/22/1980 | US4198790 Method for finishing spherical rollers |
| 04/17/1980 | WO1980000671A1 Method and apparatus for grinding piston rings |
| 02/05/1980 | US4186528 Machine for treating spherical surfaces of parts with magneto-abrasive powder |
| 06/05/1979 | US4156992 Feed control adapter |
| 03/27/1979 | US4146350 Method and apparatus for manufacturing solid bodies |
| 10/31/1978 | US4123072 Piston ring assembly and method of making same |
| 06/20/1978 | US4095373 Machine for producing spherical objects |
| 05/30/1978 | US4091572 Lapidary sphere grinder |
| 01/24/1978 | US4069621 Apparatus for machining bearing rolls |
| 01/18/1977 | US4003232 Method and apparatus for continually forming spherical objects |
| 12/28/1976 | US3999330 Apparatus for manufacture of bearing balls |
| 11/02/1976 | US3988861 Lapping or grinding apparatus and method |
| 10/12/1976 | US3984945 Device for lapping balls in continuous operation |
| 07/27/1976 | US3971164 Bowling ball resurfacing machine |
| 06/08/1976 | US3961448 Whole spherical surface polishing device |