| Patents for B21J 7 - Hammers; Forging machines with hammers or die jaws acting by impact (996) |
|---|
| 08/14/1984 | US4464924 Swaging machine |
| 08/14/1984 | US4464917 Swaging machine |
| 08/02/1984 | WO1984002953A1 Double-acting forging hammer and method |
| 07/24/1984 | US4461163 Swaging machine |
| 06/26/1984 | US4455851 Swaging machine |
| 06/20/1984 | EP0110918A1 Method and apparatus for making steering rack bars. |
| 04/04/1984 | EP0104311A1 Method for the deformation of a platelike work piece |
| 03/06/1984 | US4434645 Apparatus for the radial shaping of tubular articles |
| 02/14/1984 | US4430881 Swaging machine |
| 01/25/1984 | EP0099256A2 Improvements in or relating to swaging apparatus |
| 01/25/1984 | EP0099097A2 Device for producing a working power, in particular for rams, presses or the like |
| 12/20/1983 | US4420963 Impact rail forger |
| 12/08/1983 | WO1983004197A1 Method and apparatus for making steering rack bars |
| 11/29/1983 | US4417463 Ram assembly for electromagnetic riveter |
| 11/22/1983 | CA1157327A1 Method of automatic operation of a percussion apparatus |
| 08/31/1983 | EP0087072A1 Rotary swaging machine |
| 08/24/1983 | EP0086459A1 Rotary swaging machine |
| 08/16/1983 | US4398409 Friction shock assembly for a forging hammer |
| 05/24/1983 | US4385014 Resonantly-powered press |
| 05/17/1983 | US4383582 Bouncer type pile driver |
| 05/10/1983 | CA1145961A1 Quiet bouncer pile driver method and apparatus with annular air storage chamber encircling & traveling with bouncing piston weight |
| 03/29/1983 | CA1143595A1 Multiple piece torch tip |
| 03/22/1983 | US4377355 Quiet bouncer driver thruster method with pressurized air chamber encircling massive bouncing piston |
| 01/11/1983 | CA1139144A2 Apparatus for forming tubular filter elements |
| 12/14/1982 | US4363234 Method and apparatus for forging sections |
| 08/24/1982 | US4345453 Hydraulic press |
| 08/17/1982 | US4344313 Hydropunch for use in a press |
| 07/08/1982 | WO1982002159A1 Die fixation device of forging machine |
| 07/08/1982 | WO1982002158A1 Forging mechanism of a forging machine |
| 07/08/1982 | WO1982002157A1 Gear drive of forging machine |
| 06/08/1982 | US4333492 Liquid inertia tool |
| 03/16/1982 | CA1119848A1 Impact press having a sleeve with a ram slidable therein |
| 02/02/1982 | US4313334 Striker starting mechanism of hydrodynamic unit |
| 10/06/1981 | CA1110155A1 Laminated board and hammer combination for a drop hammer forge |
| 10/06/1981 | CA1110154A1 Laminated board and hammer combination for a drop hammer forge |
| 08/19/1981 | EP0034139A1 Cast hammer for a forging machine |
| 08/04/1981 | CA1106249A1 Hammer |
| 06/17/1981 | EP0030525A2 Method and apparatus for forging sections |
| 04/14/1981 | US4261249 Hammer |
| 03/03/1981 | CA1096661A1 Tube swaging machine |
| 01/20/1981 | US4245823 Apparatus for producing mechanically-worked vapor-deposited bulk alloys |
| 01/20/1981 | US4245493 Impact press |
| 01/20/1981 | US4245492 Hydraulic pneumatic synchronizing system for counter-blow impact forging hammers |
| 12/09/1980 | US4237566 High speed machine for cold forging screws, rivets, and the like hardware |
| 10/29/1980 | EP0017660A1 Hydraulic press |
| 10/28/1980 | US4229963 Machine for noncutting metal shaping |
| 10/01/1980 | EP0016527A1 Impact press |
| 09/09/1980 | CA1085193A1 Drop hammer frame weldment and assembly |
| 09/04/1980 | WO1980001766A1 Impact press |
| 08/26/1980 | CA1084354A1 Production of alloys |
| 07/22/1980 | US4213320 Roll-forging mill |
| 06/25/1980 | EP0012425A1 Method of treating an austenitic stainless steel wall and percussive apparatus to carry out this method |
| 05/27/1980 | US4204421 Laminated board and hammer combination for a drop hammer forge |
| 05/27/1980 | US4204420 Laminated board and hammer combination for a drop hammer forge |
| 04/29/1980 | US4199969 Tube swaging machine |
| 03/04/1980 | US4191045 Power hammer with opposed movement of ram and bolster |
| 12/18/1979 | US4178792 High-speed anvilless hammer |
| 10/09/1979 | US4170123 Convertible multiple blow two die cold header |
| 09/04/1979 | US4166375 High-speed explosive hammer |
| 09/04/1979 | US4166374 High-speed explosion hammer |
| 06/12/1979 | CA1056224A1 Method and apparatus for the shock pressure shaping |
| 06/05/1979 | US4157026 Swaging machine for swaging large tubes |
| 06/05/1979 | US4157025 Method and mill for rolling metal billets |
| 05/08/1979 | US4152921 Method and apparatus for the shock pressure shaping |
| 05/08/1979 | CA1053940A1 Hammer forging press |
| 05/01/1979 | US4151735 Recoil assembly for electromagnetic high energy impact apparatus |
| 04/24/1979 | US4150603 Fluid operable hammer |
| 03/22/1979 | WO1979000131A1 Fluid operable impactor |
| 03/06/1979 | US4142397 Counterblowing machine hammer |
| 01/02/1979 | US4132108 Ram assembly for electromagnetic high energy impact apparatus |
| 12/26/1978 | US4131164 Adaptive valve control system for an impact device |
| 12/12/1978 | US4129188 Impact device for marking, punching, stamping, forming, riveting and other related operations |
| 12/12/1978 | US4129028 Method and apparatus for working a hole |
| 12/12/1978 | US4129027 Apparatus for making metal strip |
| 12/05/1978 | US4128000 Electromagnetic high energy impact apparatus |
| 09/26/1978 | US4116039 Drop hammer frame weldment and assembly |
| 08/08/1978 | US4104904 High-energy rate forging machine |
| 07/18/1978 | US4100977 Drop hammers |
| 07/04/1978 | US4098105 Method and apparatus for setting the value of the forging dimension in forging presses using V-dies as forging tools |
| 03/14/1978 | US4078409 High-speed hydrodynamic hammer |
| 03/07/1978 | US4077303 Apparatus for generating an impact force |
| 11/29/1977 | US4060029 Bounce-free object arresting system |
| 09/20/1977 | US4049367 Apparatus for generating shock waves by means of a supersonic projectile |
| 09/20/1977 | US4048840 Apparatus for producing an instantaneous pressure on a workpiece |
| 08/23/1977 | US4043173 Method of shaping the outer surfaces of objects consisting of deformable materials and device for the application of the method |
| 08/23/1977 | US4043160 Internal tooling for swaging apparatus |
| 08/16/1977 | US4041766 Swaging device for use within a die apparatus |
| 11/23/1976 | US3992917 Forging machine |
| 06/08/1976 | US3961739 Method of welding metals using stress waves |
| 04/06/1976 | US3949237 Power supply system for selectively propelling a vehicle and for driving equipment on board the vehicle |
| 03/23/1976 | US3945237 High speed hammer forging machines |
| 03/23/1976 | US3945206 Control system for hydraulic presses comprising a plurality of press rams |
| 03/23/1976 | US3945109 Method and apparatus for driving interference-fit fasteners |
| 03/09/1976 | US3942353 High energy rate counterblow forming machine |
| 02/17/1976 | US3938364 Wrapping post swaging apparatus |
| 01/13/1976 | US3931726 Propellant-driven device for crimping large size wire and terminals |