| Patents for F04B 7 - Piston machines or pumps characterised by having positively-driven valving (2,226) |
|---|
| 06/18/1985 | US4523895 Fluid intensifier |
| 06/04/1985 | CA1188271A1 Valve actuator for a dosing pump for a paint toning machine |
| 03/12/1985 | US4504198 Electromagnetic pump |
| 03/12/1985 | US4503721 Valve actuator for a dosing pump for a paint toning machine |
| 03/05/1985 | US4502851 Pivotal discharge apparatus |
| 02/19/1985 | US4499814 Gas compressor or blower |
| 01/15/1985 | CA1180946A1 Two-cylinder pump for heavy flowable materials, such as concrete |
| 01/02/1985 | EP0129600A1 A fluid intensifier |
| 12/04/1984 | US4486156 Concrete pump with buttressed distribution pipe |
| 12/04/1984 | US4486152 Pump with spring loaded valve |
| 11/27/1984 | US4484866 Piston pump |
| 10/30/1984 | US4479759 Valveless, positive displacement pump |
| 10/02/1984 | CA1175317A1 Power assisted check valve |
| 09/19/1984 | EP0118749A1 Pump, particularly for concrete |
| 09/18/1984 | US4472118 Multi-way valves for pumps for conveying heavy flowable materials |
| 09/18/1984 | US4472114 Electric compressor |
| 09/11/1984 | US4470773 Resilient chamber fluid sampler having vacuum breaker apparatus |
| 08/22/1984 | EP0116165A1 Piston pump with rotating piston |
| 08/21/1984 | US4466782 Valve unit for use in concrete pumps |
| 08/14/1984 | US4465441 Two-cylinder pump for heavy flowable materials, such as concrete |
| 07/11/1984 | EP0113278A1 Submersible pump device, especially for the fuel supply of a burner |
| 07/05/1984 | WO1984002557A1 A fluid intensifier |
| 07/03/1984 | US4457340 Power-assisted valve, particularly for systems handling viscous materials |
| 03/20/1984 | US4437817 Two cylinder viscous material pump |
| 03/07/1984 | EP0101802A1 Apparatus for delivering viscous materials, particularly concrete |
| 02/14/1984 | US4431386 Concrete-pump assembly |
| 02/07/1984 | US4429529 Hydraulic control system having reciprocating pump and handle operated rotating valve |
| 01/03/1984 | US4424012 In-line fluid pump and shuttle valve therefor |
| 12/20/1983 | CA1158920A1 Two cylinder viscous material pump |
| 11/29/1983 | US4417860 Submersible well pump |
| 11/29/1983 | US4417857 Piston pump |
| 11/22/1983 | US4416596 Fluid-transfer system and method |
| 11/16/1983 | EP0093732A1 Device in a pressure system. |
| 11/09/1983 | EP0093372A1 Reciprocating piston mechanism |
| 11/01/1983 | CA1156090A1 Control valve for viscous material pumps |
| 11/01/1983 | CA1156089A1 Viscous material pump, in particular for the conveyance of concrete |
| 10/18/1983 | US4410322 Nonpulsating TV pump and disposable pump chamber |
| 10/12/1983 | EP0090919A1 Dispensing pump for liquids |
| 10/12/1983 | EP0090814A1 Piston machine with cylindrical working chamber or chambers. |
| 10/05/1983 | EP0090440A1 Nonpulsating intravenous pump |
| 09/20/1983 | US4405294 Dosing pump |
| 08/23/1983 | CA1152379A1 Micropumps |
| 08/17/1983 | EP0085835A2 Dispenser for semi-liquid foods such as chili |
| 07/12/1983 | US4392510 Control valve for viscous material pumps |
| 07/05/1983 | US4391600 Nonpulsating IV pump and disposable pump chamber |
| 06/22/1983 | EP0081927A2 Pump operable by a rotary pump shaft |
| 05/26/1983 | WO1983001819A1 Hydraulic control system having reciprocating pump and handle operated rotating valve |
| 05/26/1983 | WO1983001816A1 Oil pump with oscillating piston |
| 05/17/1983 | CA1146410A1 Nonpulsating iv pump and disposable pump chamber |
| 05/10/1983 | US4382753 Nonpulsating IV pump and disposable pump chamber |
| 05/10/1983 | US4382752 Twin-cylinder pump, in particular for pumping thick liquids |
| 03/31/1983 | WO1983001088A1 Engine with rotating cylinder wall |
| 02/15/1983 | US4373875 Viscous material pump, in particular for the conveyance of concrete |
| 02/09/1983 | EP0022851B1 Twin-cylinder pump, in particular for pumping thick liquids |
| 12/21/1982 | US4364718 Disposable pump for dispensing small metered amounts of liquid from a container and a control unit for operating said pump |
| 11/30/1982 | US4361117 Poultry feeder with automatic cutoff |
| 11/09/1982 | US4358257 Piston pump installation and method of operating the same |
| 10/26/1982 | CA1134281A1 Rotary shaft driven reverse osmosis method and apparatus |
| 10/20/1982 | EP0062766A1 Multiple-way valve for slurry pumps |
| 08/31/1982 | US4347131 Liquid chromatographic pump module |
| 08/11/1982 | EP0057288A1 Two cylinder pump for viscous materials, particularly a concrete pump with a connecting element pivoting in front of a two orifice plate beside the cylinders |
| 07/13/1982 | US4339233 Power-assisted valve |
| 07/06/1982 | CA1127002A1 Variable flow or metering pump |
| 06/29/1982 | US4337017 Hydraulic sleeve valve and seal arrangement for piston pump |
| 05/26/1982 | EP0052192A1 Apparatus for concrete pumps |
| 03/30/1982 | US4322201 IV Pump with back pressure control |
| 02/16/1982 | US4315582 Universal sequential dispensing pump system free of external check valves and having venting capability |
| 02/16/1982 | CA1118365A1 Reverse osmosis method and apparatus |
| 01/06/1982 | EP0043011A1 Two-cylinder concrete pump |
| 01/06/1982 | EP0042900A1 Device for feeding a liquid-fuel burner |
| 12/01/1981 | US4303378 Concrete pump |
| 12/01/1981 | US4303376 Flow metering cassette and controller |
| 11/04/1981 | EP0039146A1 Multiple chamber pump |
| 09/29/1981 | US4291588 Transmission |
| 09/21/1981 | EP0024431A4 Nonpulsating intravenous pump and disposable pump chamber. |
| 09/08/1981 | US4288326 Rotary shaft driven reverse osmosis method and apparatus |
| 09/08/1981 | US4288206 Automatic multiple water sampler |
| 09/08/1981 | CA1108358A1 Dispenser device |
| 09/02/1981 | EP0034745A1 Control slide valve for viscous matter pumps |
| 09/01/1981 | CA1108008A1 Pump |
| 07/07/1981 | US4277226 IV Pump with empty supply reservoir and occlusion detector |
| 06/16/1981 | US4273263 Filling apparatus for fluid media |
| 06/16/1981 | CA1103093A1 Pump for conveying cement |
| 06/16/1981 | CA1103092A1 Cement pump |
| 06/09/1981 | CA1102621A1 Pivotable pipe slide for use in a two cylinder concrete pump |
| 04/29/1981 | EP0027654A1 Concrete pump with hydraulically relieved slide valve |
| 04/07/1981 | US4260338 Multicylinder pump for viscous liquids |
| 03/11/1981 | EP0024431A1 Nonpulsating intravenous pump and disposable pump chamber. |
| 03/04/1981 | EP0024343A1 Pump for the delivery of viscous substances, in particular for concrete |
| 03/04/1981 | EP0024313A1 Method of residue-free dispensing of small amounts of liquid |
| 03/03/1981 | CA1096824A1 Dispensing device |
| 02/10/1981 | CA1095510A1 Batching pump for lime concrete |
| 01/28/1981 | EP0022851A1 Twin-cylinder pump, in particular for pumping thick liquids. |
| 12/02/1980 | US4236881 Liquid metering pump |
| 12/02/1980 | US4236880 Nonpulsating IV pump and disposable pump chamber |
| 12/02/1980 | US4236651 Dispenser device with valve piston pump |
| 11/04/1980 | US4231716 Mechanical lubricating pump |
| 10/29/1980 | EP0018128A1 Reverse osmosis method and apparatus |
| 10/01/1980 | EP0016410A1 Pump for viscous substances, in particular concrete pump |
| 09/18/1980 | WO1980001934A1 Nonpulsating iv pump and disposable pump chamber |