| Patent Number |
Title Of Patent |
Date Issued |
| 7190963 |
Method for performing frequency synchronization of a base station and a network part |
March 13, 2007 |
| The invention relates to a method for performing frequency synchronization of a base station, and to a network part. In the method, the following operations are performed: maintaining a reference clock in a network element of the cellular radio network; generating a time stamp signal in |
| 7164916 |
Method for quality measurement in a mobile telecommunications system |
January 16, 2007 |
| A method for operating a radio telecommunications system comprising a mobile station and one or more cell site units capable of communicating by radio with the mobile station on at least two communication channels; the method comprising: the mobile station receiving signals on each of |
| 6983161 |
Method for performing frequency synchronization of a base station and a network part |
January 3, 2006 |
| The invention relates to a method for performing frequency synchronization of a base station, and to a network part. In the method, the following operations are performed: maintaining a reference clock in a network element of the cellular radio network; generating a time stamp signal in |
| 6847826 |
Method of synchronization of a base station network |
January 25, 2005 |
| A telecommunications system has a first transmitter unit for transmitting first signals to at least one station; a second transmitter unit for transmitting second signals to at least one station; a receiving unit associated with the first transmitter unit for receiving the second sig |
| 6799044 |
Method and system for mobile communications |
September 28, 2004 |
| A method for a radio channel allocation for telecommunication networks, comprising fixed transceivers (BTS) and fixed or mobile radio stations (MS). The method comprises a step of performing channel allocation for a particular radio connection to a radio station based upon signal to |
| 6575197 |
Double-layer pipe for fluidic transport of abrasive solids |
June 10, 2003 |
| A double-layer pipe for fluidic transport of abrasive solids, includes a hardened inner pipe portion of steel, an outer pipe portion of weldable steel to surround the inner pipe portion, and terminal coupling collars made of weldable steel. Disposed between the inner pipe portion and the |
| 6520213 |
Arcuate double-layer pipe, and method of assembling an arcuate double-layer pipe |
February 18, 2003 |
| An arcuate double-layer pipe for a pipeline for fluidic transport of abrasive solids, includes an inner pipe portion made of wear-resistant material, and an outer pipe portion of weldable steel in surrounding relationship to the inner pipe portion. A pair of coupling collars made of |
| 6520211 |
Transport pipe for solid materials |
February 18, 2003 |
| A transport pipe for solid materials has a single layer pipe section having a threaded first end and a thread second end. The pipe section has a hardened inner mantle. A first coupling collar having a first threaded collar is threaded onto the threaded first end. A second coupling collar |
| 6494234 |
Pipe bend for a pipeline for transport of abrasive materials |
December 17, 2002 |
| A pipe bend for a pipeline for transporting abrasive materials, includes a pair of coupling collars having an outer ring, which has an outer circumferential anchoring groove, and an inner ring secured in the outer ring against axial displacement and made of a more wear-resistant material |
| 6325106 |
Transport pipe for solid materials |
December 4, 2001 |
| A transport pipe for solid materials has a single layer pipe section having a threaded first end and a thread second end. The pipe section has a hardened inner mantle. A first coupling collar having a first threaded collar is threaded onto the threaded first end. A second coupling collar |
| 6240966 |
Pipe for conveying solids |
June 5, 2001 |
| A pipe for conveying solids provided at least at one end thereof with a circumferential radially extending coupling flange and an axially extending annular portion connected to the coupling flange. An annular insert of a material having a greater resistance to wear as compared to the |
| 6086109 |
Conveying pipe |
July 11, 2000 |
| A conveying pipe for hydraulically transporting solids, such as sand, gravel or also concrete is composed of a straight or curved pipe portion and of coupling flanges at the ends of the pipe portion, wherein the coupling flanges protrude radially above the outer surface of the pipe p |
| 5984374 |
Pipe bend |
November 16, 1999 |
| A pipe bend for integration in a pipeline for conveying concrete has coupling flanges at the ends thereof which radially project beyond the outer surface of the pipe bend. The internal flow cross-section of the pipe bend is dimensioned essentially equal in any length portion of the p |
| 5893588 |
Connection of a coupling collar to and end of a hardened pipe |
April 13, 1999 |
| A connection of a coupling collar to the ends of hardened conveying pipes for fluidically conveying solids, such as, sands, gravels and concrete, includes a coupling collar with a connecting piece which is glued in a tension-proof manner to the outer surface of the end of a pipe and at |
| 5884946 |
Connection of steel pipes for conveying solid materials |
March 23, 1999 |
| A connection of steel pipes for conveying solid materials, particularly for conveying gravel, includes radially directed coupling flanges which extend circumferentially at the ends of the steel pipes. The coupling flanges have receiving bores for the coupling bolts, wherein the receiving |
| 5813437 |
Pipe for conveying solids |
September 29, 1998 |
| A pipe for conveying solids, particularly for conveying concrete, includes a cylindrical middle portion and a welding neck with a coupling ring flange. The welding neck has an inner layer and an outer layer, wherein the inner layer is of a material which has a greater resistance to wear |
| 5718461 |
Pipe bend |
February 17, 1998 |
| A pipe bend for a pipeline for hydraulically or pneumatically conveying solids includes a middle pipe portion and double-layer coupling flanges welded to the ends of the middle pipe portion. Each coupling flange has an outer layer and an inner wear ring. Each outer layer includes an annu |
| 5275440 |
Double-layer pipe bend with intermediate support layer |
January 4, 1994 |
| A double-layer pipe bend for a pipeline includes an inner pipe of cast steel, an outer pipe of weldable steel surrounding the inner pipe, and connecting flanges at the ends of the pipe bend. The connecting flanges are welded to the outer pipe. The inner pipe and the outer pipe are formed |
| 5044670 |
Pipe for conveying solid matter |
September 3, 1991 |
| A pipe for conveying solid matter, particularly for conveying concrete. The pipe has a cylindrical middle portion and a double-layer welding neck with annular coupling flange at each end of the middle portion. The inner layer is replaceably clamped in the outer layer in a positively lock |
| 4497673 |
Method of manufacturing double-walled tube |
February 5, 1985 |
| A double-walled tube is produced by providing an inner core tube and an outer casing tube, wherein the outer diameter of the inner core tube is smaller than the inner diameter of the outer casing tube, with consideration of manufacturing tolerances and/or noncircularity, by such a va |
