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| Number | Title | Issue Date |
| 5125805 | Fluid compressor The Oldam-ring of the rotational force transmitting mechanism of a fluid compressor is engaged with the rectangular section formed on the base portion of the main shaft of the rotary rod in the direction perpendicular to the axial direction of the main sh... | 06/30/1992 |
| 5090874 | Fluid compressor A fluid compressor includes a cylinder having first and second discharge ends, in which a rotating rod is rotatably arranged. First and second spiral grooves are formed on the outer circumference of the rod, and first and second spiral blades are fitted i... | 02/25/1992 |
| 5090875 | Fluid compressor A fluid compressor includes a closed case and a cylinder which is arranged in the case and has two opposite ends. A columnar rotating rod is located in the cylinder to be eccentric thereto, and rotatable along with the cylinder. The rod has a spiral groov... | 02/25/1992 |
| 5062778 | Helical blade type compressor with thrust loss compensation A piston is eccentrically arranged in a cylinder along its axial direction and can be rotated relative to the cylinder. Part of the piston is in contact with the cylinder's inner surface. First and second helical grooves are formed in the piston's outer s... | 11/05/1991 |
| 5028222 | Fluid compressor with axial thrust balancing A compressor includes a casing wherein a compression section and a drive section are contained. The compression section has a cylinder, a rotary rod eccentrically arranged in the cylinder and rotatable relative to the cylinder, and first and second bearin... | 07/02/1991 |
| 5026264 | Fluid compressor A fluid compressor includes a cylinder and a columnar rotary rod. The rod is arranged in the cylinder so as to extend in the axial direction thereof and be eccentric thereto, and orbitable relative to the cylinder without rotation with respect to the cyli... | 06/25/1991 |
| 4997352 | Rotary fluid compressor having a spiral blade with an enlarging section A fluid compressor includes a rotating body arranged in a cylinder to extend in the axial direction of the cylinder and eccentric thereto. A spiral groove is formed on the outer circumference of the rotating body, and a spiral blade is slidably fitted in ... | 03/05/1991 |
| 4952122 | Fluid compressor A fluid compressor includes a cylindrical casing, a cylinder arranged in the casing to be rotatable and coaxial with the casing, and a columnar rotary body located in the cylinder and extending in the axial direction of the cylinder. A spiral groove is fo... | 08/28/1990 |
| 4948347 | Fluid compressor A fluid compressor includes cylinder, and a cylindrical rotating body located in the cylinder. One end of the cylinder is rotatably supported by a first bearing fixed to a case and the other end of the cylinder is slidably fitted with a second bearing. Th... | 08/14/1990 |
| 4875842 | Axial flow fluid compressor A compressor includes a cylinder, and a rotating body located in the cylinder. A spiral groove is formed on the outer periphery of the rotating body. A spiral blade is fitted in the groove and divides the space between the inner periphery of the cylinder ... | 10/24/1989 |
| 4872820 | Axial flow fluid compressor with angled blade A compressor includes a cylinder, and a rotary rod arranged in the cylinder. A spiral groove is formed on the outer periphery of the rotary rod. The spiral groove is formed such that its depth direction extending from the bottom of the groove to the openi... | 10/10/1989 |
| 4871304 | Axial flow fluid compresser A compressor includes a cylinder, and a rotating body located in the cylinder. A spiral groove is formed on the outer periphery of the rotating body. A spiral blade is fitted in the groove and divides the space between the inner periphery of the cylinder ... | 10/03/1989 |
| 4219316 | Curved spiral pump A pumping or compressing geometry is being disclosed. Several turns of deformable spiral are fitted in a curved housing to form line contacts between turns of the spiral by allowing it to bend. These line contacts separate the inlet and the outlet ports i... | 08/26/1980 |
| 4127368 | Rotor for eccentric helical gear pump A rotor for an eccentric gear pump is formed of two deep-drawn sheet metal halves welded together.... | 11/28/1978 |
| 4101100 | Aircraft flight line servicing system In an aircraft flight line servicing system there is provided an electrical power unit and an air compressor from which extend respectively a plurality of electrical and air distribution lines and a plurality of service islands are each connected to all o... | 07/18/1978 |
| 4030862 | Helical gear pump and method of manufacturing the same A helical gear pump in which the rotor is made of a wire or bar wound into a cylindrical helix. The rotor is made by twisting two wires or bars around each other, separating the two helices so formed, and using one or both of them as a rotor. The stator i... | 06/21/1977 |
| 3951576 | Rotary diaphragm pump The rotation of a helix within a deformable tube which is located within and attached by the ends to a pump casing of circular cross section causes fluid to flow between the tube and pump casing when the tube contains at least one longitudinal rib continu... | 04/20/1976 |
