F04C

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Description

ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS (engines F03C); ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS

Subclasses

Not Available
Subclass Title
2/00 Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B)
2/02 Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
2/04 Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents of internal-axis type
2/06 Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents of other than internal-axis type (F04C 2/063 takes precedence)
2/063 Rotary-piston machines or pumps (with non-parallel axes of co-operating members F04C 3/00; with the working-chamber walls at least partly resiliently deformable F04C 5/00; with fluid ring or the like F04C 7/00; rotary-piston pumps specially adapted for elastic fluids F04C 18/00, F04C 19/00; rotary-piston machines or pumps in which the working-fluid is exclusively displaced by, or exclusively displaces, one or more reciprocating pistons F04B) of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents with coaxially-mounted members having continuously-changing circumferential spacing between them

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Recent Patents

Not Available

Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2020/0018,309 PUMP APPARATUS Feb 23, 18 Jan 16, 20 , Not available
2020/0018,312 CLUTCHED VACUUM PUMP SYSTEM Jan 29, 18 Jan 16, 20 , Not available
2020/0018,228 ROTARY COMBUSTION ENGINE ROTOR DEACTIVATION AND METHOD Jul 16, 18 Jan 16, 20 , Not available
2020/0018,308 VANE PUMP Jun 19, 19 Jan 16, 20 , TAIHO KOGYO Co. Ltd.
2020/0018,313 SCROLL FLUID MACHINE Sep 26, 19 Jan 16, 20 , Not available
2020/0018,310 SCROLL-TYPE COMPRESSOR Nov 09, 17 Jan 16, 20 , Not available
2020/0018,311 SCROLL COMPRESSOR AND REFRIGERATION CYCLE APPARATUS Oct 27, 16 Jan 16, 20 , Mitsubishi Electric Corporation
2020/0018,300 DEVICE FOR DRIVING A COMPRESSOR AND METHOD FOR ASSEMBLING THE DEVICE Jul 11, 19 Jan 16, 20 , Not available
2020/0018,314 Compressor and Exhaust Structure Thereof Sep 28, 17 Jan 16, 20 , Not available
2020/0011,324 Gas Compressor Jan 30, 18 Jan 09, 20 , Not available
2020/0014,277 Portable Fuel Pump Sep 16, 19 Jan 09, 20 , Tuthill Corporation
2020/0011,328 SCROLL COMPRESSOR Jul 03, 19 Jan 09, 20 , Not available
2020/0011,327 Wiper Ring Assembly with Energizing Member Jul 03, 18 Jan 09, 20 , Not available
2020/0011,326 VANE PUMP Oct 18, 17 Jan 09, 20 , NIPPON OIL PUMP CO., LTD.; Kanzaki Kokyukoki Mfg. Co., Ltd.;
2020/0011,426 METHODS AND SYSTEMS FOR SEALING ROTATING EQUIPMENT SUCH AS EXPANDERS OR COMPRESSORS Sep 16, 19 Jan 09, 20 , Not available
2020/0011,325 STATOR ASSEMBLY FOR A PROGRESSIVE CAVITY PUMP OR A PROGRESSIVE CAVITY MOTOR AS WELL AS METHOD FOR MANUFACTURING AND REPAIRING THE SAME Jul 05, 18 Jan 09, 20 , Arnold Jaeger Holding GmbH
2020/0003,212 SINGLE-SCREW COMPRESSOR Dec 27, 17 Jan 02, 20 , Not available
2020/0003,210 OIL PUMP Mar 12, 18 Jan 02, 20 , Not available
2020/0003,209 OIL PUMP Mar 12, 18 Jan 02, 20 , Not available
2020/0003,208 ADAPTIVE SELF-SEALING MICROFLUIDIC GEAR PUMP Jun 27, 19 Jan 02, 20 , Not available

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Patents Issued To Date - By Filing Year

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