| More topics under "F04B - Positive-displacement machines for liquids; Pumps" (160,272) |
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| F04B 1 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders (10,723) | | F04B 11 - Equalisation of pulses, e.g. by use of air vessels; Counteracting cavitation (1,551) | | F04B 13 - Pumps specially modified to deliver fixed or variable measured quantities (2,234) | | F04B 15 - Pumps adapted to handle specific fluids, e.g. by selection of specific materials for pumps or pump parts (3,388) | | F04B 17 - Pumps characterised by combination with, or adaptation to, specific driving engines or motors (9,703) | | F04B 19 - Machines or pumps having pertinent characteristics not provided for in, or of interest apart from, groups (2,867) | | F04B 23 - Pumping installations or systems (4,078) | | F04B 25 - Multi-stage pumps specially adapted for elastic fluids (1,208) | | F04B 27 - Multi-cylinder pumpsspecially adapted for elastic fluids and characterised by number or arrangement of cylinders (7,781) | | F04B 3 - Machines or pumps with pistons coacting within one cylinder, e.g. multi-stage (444) | | F04B 31 - Free-piston pumps specially adapted for elastic fluids; Systems incorporating such pumps (182) | | F04B 33 - Pumps specially adapted for elastic fluids actuated by muscle power, e.g. for inflating (2,403) | | F04B 35 - Piston pumpsspecially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for (9,373) | | F04B 37 - Pumps specially adapted for elastic fluids and having pertinent characteristics not provided for in, or of interest apart from, groups (3,029) | | F04B 39 - Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups (22,436) | | F04B 41 - Pumping installations or systems specially adapted for elastic fluids (2,502) | | F04B 43 - Machines, pumps, or pumping installations having flexible working members (13,111) | | F04B 45 - Pumps or pumping installations having flexible working members and specially adapted for elastic fluids (2,191) | | F04B 47 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps (5,485) | | F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups (22,036) | | F04B 5 - Machines or pumps with differential-surface pistons (514) | | F04B 51 - Testing machines, pumps, or pumping installations (2,128) | | F04B 53 - Component parts, details or accessories not provided for in, or of interest apart from, groups or (19,443) | | F04B 7 - Piston machines or pumps characterised by having positively-driven valving (2,226) | | F04B 9 - Piston machines or pumps characterised by the driving or driven means to or from their working members (9,236) |
| Patents for F04B - Positive-displacement machines for liquids; Pumps (204) |
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| 07/24/1979 | US4161989 Reciprocating hydraulic motors | | 05/08/1979 | CA1053972A1 Axial piston pump | | 02/07/1978 | US4072451 Power transmission | | 02/07/1978 | US4072444 Axial piston pumps |
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