| Patents for B21C 26 - Rams or plungers for metal extruding; Discs therefor (361) |
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| 11/21/2002 | DE10141223C1 Profile extrusion method, for ductile material such as solder material or aluminium alloy, uses direct forcing of ductile material bar through forming tool via displaced pressure die |
| 10/17/2002 | WO2002081110A1 Arrangement for releasably connecting a dummy block to a press stem of an extrusion press |
| 06/19/2002 | EP1115520B1 Method for coating a surface with a separating agent |
| 02/14/2002 | DE10036463A1 Dummy block; has pressing surface, which exerts force on material to be pressed and at least one gap that is radially symmetrical about horizontal rotation axis of dummy block |
| 10/17/2001 | CN1318000A Method for coating surface with separating agent |
| 09/20/2001 | WO2001068283A1 Apparatus and method for extrusion of material |
| 09/20/2001 | CA2402565A1 Apparatus and method for extrusion of material |
| 07/18/2001 | EP1115520A1 Method for coating a surface with a separating agent |
| 05/03/2001 | DE19941364A1 Spray head for spraying separating medium in extrusion press has separating medium subjected to bias pressure by suction pressure pump with main valve closed to speed up conveying |
| 03/30/2000 | WO2000016931A1 Method for coating a surface with a separating agent |
| 03/30/2000 | DE19842660A1 Verfahren zur Beschichtung einer Oberfläche mit einem Trennmittel A method for coating a surface with a release agent |
| 03/30/2000 | CA2345922A1 Method for coating a surface with a separating agent |
| 07/06/1999 | US5918498 For use in extruding an extrudable metal |
| 04/27/1999 | US5896772 Extruder |
| 06/30/1998 | US5771734 Replaceable ring for dummy block |
| 01/29/1998 | WO1998003277A1 Improved dummy block construction |
| 09/16/1997 | US5666846 Extrusion apparatus for making seamless tubes from hollow billets |
| 05/06/1997 | US5626047 Fixed dummy block assembly |
| 07/09/1996 | US5533375 Method for making seamless tubes from hollow billets |
| 02/28/1995 | US5392628 Press assembly for extruding a billet |
| 01/05/1995 | DE4320897A1 Dummy block for the press ram of an extruder |
| 10/11/1994 | US5354192 Indirect extrusion press |
| 05/17/1994 | US5311761 Metal extrusion dummy block having a spring loaded valve |
| 12/28/1993 | US5272900 Bayonet style connector for metal extrusion dummy block |
| 10/20/1993 | EP0316344B1 Indirect extrusion press with ram-mounted turret supporting tool |
| 06/23/1993 | EP0547520A1 Vacuum extrusion press assembly for metals |
| 04/08/1993 | DE4132810A1 Extrusion press pressure plate allowing complete venting of entrapped air - has convex curvature at front face of plate and passage(s) in (expansion) wear ring |
| 09/08/1992 | CA1307236C Indirect extrusion press with ram-mounted turret supporting tool |
| 07/25/1991 | DE4001633A1 Pressure plate for extrusion pressing of metal - space between pressure plate and adaptor in press punch for wear ring which deforms under pressure reducing play against barrel |
| 06/27/1990 | EP0316344A4 Indirect extrusion press with ram-mounted turret supporting tool. |
| 05/24/1989 | EP0316344A1 Indirect extrusion press with ram-mounted turret supporting tool. |
| 11/22/1988 | US4785652 Indirect extrusion press with ram-mounted turret supporting tooling |
| 10/27/1988 | DE3711752A1 Pressing disc for transmitting the pressing force of the ram of an extrusion press to the extrusion billet |
| 01/28/1988 | WO1988000502A1 Indirect extrusion press with ram-mounted turret supporting tool |
| 11/03/1987 | US4703642 Process and device for manufacturing a section, in particular a hollow section, via extrusion |
| 08/19/1986 | US4606211 Indirect extrusion press |
| 08/19/1986 | US4606210 Extrusion press for manufacturing extruded sections from metal billets |
| 07/16/1986 | EP0187582A1 Dummy block for metal extruding |
| 11/05/1985 | US4550584 Fixed dummy blocks |
| 09/11/1985 | EP0154463A2 Indirect extrusion press |
| 07/16/1985 | CA1190518A1 Fixed dummy blocks for extrusion presses |
| 12/28/1983 | EP0097115A1 Device and method for the extrusion of profiles or the like from a block or billet |
| 01/18/1983 | US4368634 Extrusion punch and method of construction |
| 08/31/1982 | US4346578 Extrusion press and method |
| 01/05/1982 | US4308742 Method of and machine for extruding |
| 09/01/1981 | US4286453 Device for securing the dummy block on the press stem of metal-extrusion presses |
| 07/28/1981 | USRE30688 Extrusion press for indirect extrusion |
| 06/02/1981 | US4270378 Extrusion punch |
| 02/17/1981 | US4251202 Molding die stem with sleeve |
| 09/23/1980 | US4223546 Extrusion press stem with at least one channel running approximately axially through it |
| 07/22/1980 | US4213318 Apparatus for fitting an extrusion die holder onto the press stem of an indirect metal extrusion press |
| 11/14/1978 | US4125007 Punch and method of construction |
| 11/07/1978 | CA1041945A1 Sealing plate for closing the end of a billet container bore during indirect extrusion |
| 10/17/1978 | CA1040584A1 Extrusion punch and method of construction |
| 06/20/1978 | US4095449 Coated punch |
| 04/18/1978 | US4084422 Extrusion press |
| 11/08/1977 | US4056964 Apparatus for metal extrusion |
| 10/11/1977 | US4052877 Extrusion press for indirect extrusion |
| 01/25/1977 | US4004443 Dynamic sealing device for high-temperature and high-pressure operation |
| 08/31/1976 | US3977226 Sealing device for indirect extrusion die |
| 07/06/1976 | US3967485 Method for extruding brittle materials |