| Patents for F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236) |
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| 11/15/1977 | US4058709 Control computer for fuel injection system |
| 10/25/1977 | US4055069 Portable manually controlled hydraulic pipe bending apparatus |
| 10/11/1977 | US4053902 Fluid pump for a writing device |
| 10/11/1977 | US4053901 Fluid pump for a writing device having an air ejector feature |
| 10/11/1977 | US4053089 Pump for dispensing liquids |
| 10/11/1977 | US4053086 Pumps for hand-held dispensers |
| 10/04/1977 | US4051983 Pump sprayer |
| 10/04/1977 | US4051877 Gas compression apparatus |
| 09/27/1977 | US4050613 Manual actuated dispensing pump |
| 09/13/1977 | US4047845 Cyclic pump |
| 09/06/1977 | US4046288 Plural chamber dispenser |
| 08/23/1977 | US4043709 Adjustable stop assembly |
| 08/23/1977 | US4043122 Fluid cam assembly |
| 08/16/1977 | US4042311 Pump fluid motor carrying spool valve for distributor valve actuation |
| 08/09/1977 | US4040772 Fluid energy system |
| 08/02/1977 | US4038983 Fluid infusion pump |
| 07/26/1977 | US4038511 Method for electropneumatic conversion |
| 07/26/1977 | US4037992 Slurry continuous pressure-feeding apparatus |
| 07/19/1977 | US4036564 Concrete pumping apparatus |
| 07/19/1977 | US4036563 Wave motor comprised of a submerged floating network of chambers formed by walls permitting variable geometry |
| 07/19/1977 | US4036124 Sludge press |
| 07/12/1977 | US4035109 Pump for fluent, and especially heavy and abrasive materials |
| 07/05/1977 | US4033513 Electromagnetically operated valve |
| 06/28/1977 | US4032263 Pump with coaxial inlet and outlet valve arrangement |
| 06/28/1977 | US4032040 Method and control system for batching plural substances and pump system |
| 06/21/1977 | US4030857 Paint pump for airless spray guns |
| 06/14/1977 | US4029442 High pressure piston pump and wiper, sealing, valving structure |
| 06/14/1977 | US4029440 High pressure fluid intensifier and method |
| 06/07/1977 | US4028018 Non-pulsing apparatus |
| 06/07/1977 | US4028014 Reversing means for double-acting fluid pump |
| 05/31/1977 | US4026439 Precision fluid dispensing and mixing system |
| 05/31/1977 | US4026196 Device for driving a pump piston |
| 05/24/1977 | US4025046 Liquid atomisers |
| 05/17/1977 | US4023515 Floating wave powered pump |
| 05/03/1977 | US4021164 Pump having reciprocating pumping means |
| 05/03/1977 | US4021156 High pressure hydraulic system |
| 05/03/1977 | US4021149 Fluid driven reciprocating pump |
| 05/03/1977 | US4021148 Hydraulic fluid devices |
| 05/03/1977 | US4020760 Printing ink metering pump |
| 04/26/1977 | US4019838 Air pressure-actuated double-acting diaphragm pump with means to produce a selected start-up position |
| 04/26/1977 | US4019395 Piston drive assembly |
| 04/12/1977 | US4017214 Packing gland leak retriever device |
| 04/12/1977 | US4017031 Miniature atomizer of manual type |
| 04/05/1977 | US4015913 Diaphragm air pump |
| 03/22/1977 | US4013385 Deep well pump system |
| 03/22/1977 | US4013382 Wave power apparatus supported and operated by floats in water |
| 03/15/1977 | US4012178 Hydraulic pump with replaceable pumping member |
| 03/15/1977 | US4012174 Fuel priming pump |
| 03/15/1977 | US4012173 Variable stroke compressor |
| 03/15/1977 | US4011723 Fluid power system |
| 03/01/1977 | US4009971 Electric motor-driven, double-acting pump having pressure-responsive actuation |
| 02/22/1977 | US4008984 Pump apparatus |
| 02/08/1977 | US4006797 Cam actuated lubrication pump |
| 01/25/1977 | US4004865 Pump with yieldable radial partitions and rotatable side plates |
| 01/25/1977 | US4004863 Hydraulic pump with remote control equipment |
| 01/25/1977 | US4004420 Hydropneumatic pumping arrangement |
| 01/18/1977 | US4003679 High pressure pump with metering |
| 01/11/1977 | US4002184 Water flow actuated air charging device |
| 12/28/1976 | US3999899 Diaphragm fluid pump |
| 12/28/1976 | US3999896 Continuously operating piston pump |
| 12/28/1976 | US3999895 Rotating barrel pump |
| 12/21/1976 | US3998569 Apparatus for use as a gas compressor or gas blower |
| 12/14/1976 | US3997081 Apparatus for controlling the operation of a package filling device |
| 12/07/1976 | US3995779 Aerosol container |
| 12/07/1976 | US3995774 Liquid dispenser having deformable diaphragm type pump |
| 12/07/1976 | US3995734 Manure transfer apparatus |
| 11/30/1976 | US3994627 Pumping apparatus for wet concrete |
| 11/30/1976 | US3994134 Apparatus for power generation in deep seawater |
| 11/09/1976 | US3990816 Double acting piston pump for cryogenic medium |
| 11/09/1976 | US3990815 Flow control device |
| 11/09/1976 | US3990611 Plural metering dispensers with wall securing rack |
| 10/26/1976 | US3987938 Dispensing pump |
| 10/19/1976 | US3986355 Well head gas counter balanced and operated actuator for oil well pumps |
| 10/12/1976 | US3985470 Dual pressure hydraulic pump |
| 10/05/1976 | US3984033 Electric gun for dispensing of comestibles |
| 10/05/1976 | US3983855 Fuel injection system |
| 09/28/1976 | US3982669 Hot melt dispensing apparatus and method |
| 09/28/1976 | US3982663 Method and apparatus for metering thixotropic battery paste |
| 09/21/1976 | US3981636 Diaphragm vacuum pump |
| 09/21/1976 | US3981635 Material handling system |
| 09/21/1976 | US3981632 Metering pump |
| 09/21/1976 | US3981622 Hydraulic intensifier control system |
| 09/21/1976 | US3981414 Beverage dispensing system |
| 09/14/1976 | US3980231 Proportioning sprayer device |
| 09/14/1976 | US3980209 Bulk loading plastic compound dispensing device |
| 09/07/1976 | US3979027 Product pressurized compressed air dispenser having improved product control valve actuator |
| 09/07/1976 | US3979023 Dispenser for flowable material |
| 08/31/1976 | US3977443 Method of and apparatus for controlling pumps in looms with jet weft insertion |
| 08/24/1976 | US3976401 Pump for abrasive slurries and the like |
| 08/24/1976 | US3976229 Hot melt dispensing apparatus |
| 08/03/1976 | US3972387 Lubrication system with quick-change supply reservoir |
| 07/27/1976 | US3971330 Propulsion pump for water borne vessels |
| 07/27/1976 | US3971259 Fluid transducer |
| 07/27/1976 | US3971213 Pneumatic beam pumping unit |
| 07/20/1976 | US3970415 One way valve pressure pump turbine generator station |
| 07/13/1976 | US3969046 Metering pump system |
| 07/13/1976 | US3968735 Control device for a fluidic-control jack |
| 07/06/1976 | US3967634 Flow ratio control system |
| 07/06/1976 | US3967612 Lubricating oil pump for use in an internal combustion engine |
| 07/06/1976 | US3967542 Hydraulic intensifier |