| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 418125000 | Seal on cylinder engaging rotary member separates inlet and outlet ports | 6 |
| 20100158737 | SCREW COMPRESSOR - A screw compressor includes a casing, a screw rotor and a gate rotor. The casing has a cylinder. The screw rotor is cylindrical-shaped and configured to be fitted into the cylinder. The gate rotor is configured to be engaged with the screw rotor. A, outlet width of a seal surface of the casing on a gas-outlet side of the screw rotor is larger than an inlet width of the seal surface on a gas-inlet side of the screw rotor. The seal surface of the casing is opposed to one surface of the gate rotor. | 06-24-2010 |
| 20160010644 | PUMP WITH A RESILIENT SEAL | 01-14-2016 |
| 418126000 | Engages plural rotary members | 1 |
| 20100124513 | Gear Pump - A gear pump includes a gear to be driven by a drive shaft, a pair of side plate members adjoining side surfaces of the gear, respectively, to restrain leakage of an operating fluid, and a tip seal member or seal block for sealing the gear tip or circumference of the gear. At least one of the side plate members and the tip seal member are integral parts of a sealing member. | 05-20-2010 |
| 418129000 | With resilient biasing means | 3 |
| 20120034122 | PUMP WITH A RESILIENT SEAL - A pump comprises a housing, with an interior defining a rotor path, an inlet formed in the housing at a first position on said rotor path, an outlet formed in the housing at a second position on said rotor path spaced from said first position. A rotor is rotatable in the housing with a first surface that seals against the housing. A second surface is formed on said rotor circumferentially spaced from said first surface and forms a chamber that travels around said rotor path to convey fluid from the inlet to the outlet. A resilient seal formed with the housing is located on the rotor path to prevent fluid flow from said outlet to said inlet past the seal. A passage may be provided to supply fluid to an under surface of the seal at a pressure that acts to urge the seal against the rotor. | 02-09-2012 |
| 20140348684 | Pumps - A pump comprises a housing ( | 11-27-2014 |
| 20160138589 | Pump for delivering a liquid - A pump for delivering a liquid has a pump housing with at least one inlet and at least one outlet. On the pump housing, there is arranged an eccentric which, with an axis, is rotatable relative to the pump housing. A deformable element between the pump housing and the eccentric delimits at least one delivery path from the inlet to the outlet and forms at least one displaceable seal of the delivery path, which displaceable seal partitions off at least one closed pump volume in the delivery path. By a movement of the eccentric, the displaceable seal is displaceable to deliver the liquid along the delivery path. The inlet and the outlet have an angular spacing to one another in a circumferential direction about the axis, and the seal spans an angle segment in which the delivery path is closed, the angle segment being larger than the angular spacing. | 05-19-2016 |
