Famous Patents
British merchant Peter Durand invented the tin can in 1810.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6893151 | Device for conveying elastomeric media, use of the device, as well as two operating methods A system for delivering elastomeric media comprises a gear pump and a screw-type extruder which, viewed in the delivery direction of the pumping medium, is arranged in front of the gear pump and which comprises a screw and a screw casing. The screw casing has at lea... | 05/17/2005 |
| 6518684 | Device having a magnetic clutch and use thereof for a gear pump A system has a magnetic coupling for the no-contact transmitting of a torque from a first shaft coupled with a drive unit to a second shaft disposed in a housing. One of the shafts is provided with an inner rotor having magnets and the other shaft is prov... | 02/11/2003 |
| 6312225 | Gear pump having a multishaft drive and method of operating same A gear pump having two meshing gears which are each assigned to a shaft and which are each driven by a driving unit. The driving units are controllable by a control unit such that the shafts rotate at a definable angular velocity. The control units having... | 11/06/2001 |
| 6283734 | Gear pump and a method for positioning a gear pump shaft A gear pump for delivering liquid media has a pump housing with at least two bores, in which at least two meshing gears with tooth tips are contained. The gears are radially mounted by bearing surfaces which on one side consist of areas of the tooth tips ... | 09/04/2001 |
| 6123531 | Bearing arrangement for a pump shaft of a pump for delivering media of different viscosities A gear pump has a housing, a pump shaft supported in a housing wall by a bearing, and a pumping gear supported on the pump shaft which is operable to pump newtonian and non-newtonian liquid of different densities. A relief collection zone is arranged on a... | 09/26/2000 |
| 5988986 | Method and device for monitoring system units based on transmission of lumped characteristic numbers A method is provided for monitoring the operating status of one or more pumps, particularly gear pumps, whereby system parameters are determined by a corresponding measuring device. The system parameters are subsequently processed in a local evaluation un... | 11/23/1999 |
| 5951171 | Slide bearing, particularly for a gear pump A slide bearing for a gear pump or the like has a lubrication groove provided in the surface of the cylinder forming the slide bearing. The lubrication groove is constructed to be ending flatly in the area of that edge which, with respect to the shaft rot... | 09/14/1999 |
| 5772417 | Gear pump for conveying viscous fluid media and method of making same A gear pump for conveying fluid media, particularly viscous media, has tube or collar-type sections on the suction side and/or delivery side for connecting the pump in a weldable manner with additional system components.... | 06/30/1998 |
| 5549462 | Gear pump and its uses A gear pump comprises rotors disposed in roller bearings. For the delivery of very viscous polymer meltings, bearings surfaces of at least one of inner races, outer races of the bearings and bearing surfaces of roller elements are made of a steel with a h... | 08/27/1996 |
| 5547356 | Gear pump and method of using same To reduce squeeze pressure peaks on meshing rotors of a gear pump, recesses are molded into the product duct wall in the meshing area, on the delivery side and the suction side. The recesses are formed with spherical segments or other continuously curved ... | 08/20/1996 |
| 5462420 | Gear pump A gear pump comprising a housing for housing gear pump rotors in a housing interior, said housing having a housing end at an end face side of the housing through which at least one pump rotor shaft is guided from the housing interior to outside the housin... | 10/31/1995 |
| 5253988 | Gear pump Method and apparatus for on-site cleaning of a gear pump by coupling the gear pump outlet to the gear pump inlet and to the inlet end of the passage and which bypasses the bearing and is preferably controlled by a valve element which can block off the byp... | 10/19/1993 |
