| Patent Number |
Title Of Patent |
Date Issued |
| 4284385 |
Method and equipment for handling pipe mounted carriage |
August 18, 1981 |
| Apparatus for supporting a carriage such as for an automatic welding machine for welding line pipe on a lay barge where the machine is successively lifted from and set upon the pipe. A power cylinder operates extendable legs in accordance with its full stroke and cables connected wit |
| 4249477 |
Apparatus for use in coating longitudinally welded pipe |
February 10, 1981 |
| A device for applying mastic material to the weld bead area of longitudinally welded pipe is the subject of this application. An extruder is mounted on a framework and receives mastic material in rope form from a bulk spool positioned above the extruder. The extruder incorporates hea |
| 4244740 |
Pipe coating composition utilizing cement kiln dust filler |
January 13, 1981 |
| A pipe coating composition is the subject of the present invention. A bituminous base coating comprising binder, aggregate and fiber utilizes cement stack dust as a filler in place of conventional lime dust or cement. The cement stack dust filler is utilized in quantities up to 25% l |
| 4231823 |
Method and apparatus for centering two concentric cylinders |
November 4, 1980 |
| A method and apparatus for centering two concentric cylinders having different diameters is the subject of the present invention. A linear reference line is projected from an illuminating source along the length of the inner cylinder. At the other end of the cylinder is a photo recei |
| 4213530 |
Containerized pipe coating material |
July 22, 1980 |
| An improved containerized pipe coating including coating material and the container therefor is the subject of the present invention. An asphalt coating material comprising 10% to 25% by weight asphalt and 75% to 90% by weight sand-lime aggregate is used to coat the weld joints of pipe |
| 4213357 |
Cutting device for pipe jackets |
July 22, 1980 |
| A device for cutting a metal or plastic jacket which surrounds a layer of foam on an insulated pipe is the subject of the present invention. A circumferential track mounts on the jacket and a ring gear is movable in the track. The cutting means is mounted on the ring gear for movement |
| 4205774 |
Device for welding tubes to pipe |
June 3, 1980 |
| A device for automatically welding a tube onto a pipe of larger diameter is the subject of the present invention. Tack welding is achieved by two welding torches located on opposite sides of the tube and spaced apart longitudinally a distance equal to the distance desired between tack |
| 4205544 |
Apparatus for bending corrugated pipe |
June 3, 1980 |
| Corrugated pipe is bent by pinching the spiral corrugations on one side of the pipe to decrease their pitch and increase their amplitude as compared to the undeformed corrugations on the opposite side of the pipe, thereby shortening the pipe on one side. A machine for effecting deformati |
| 4141130 |
Method and apparatus for centering two concentric cylinders |
February 27, 1979 |
| A method and apparatus for centering two concentric cylinders having different diameters is the subject of the present invention. A linear reference line is projected from an illuminating source along the length of the inner cylinder. At the other end of the cylinder is a photo recei |
| 4096017 |
Method and article for forming field joints on pipe coated with thermoplastic material |
June 20, 1978 |
| A method and article for covering and sealing the exposed weld joint area of a pipeline coated with thermoplastic corrosion protective coating is the subject of this application. The article comprises a layer of thermoplastic material that is compatible with the thermoplastic coating. |
| 4073760 |
Method of packaging asphalt material and improved product resulting therefrom |
February 14, 1978 |
| A method of providing asphalt base coating material for pipe and a novel container for holding the coating material are the subject of the present application. An asphalt coating material comprising 10% to 25% by weight asphalt and 75% to 90% by weight sand-lime aggregate is used to coat |
| 4004619 |
Method and apparatus for preparing and packaging mastic coating material |
January 25, 1977 |
| A method and apparatus for packaging thermoplastic fluid material is the subject of the present invention. The thermoplastic material is mixed at an elevated temperature and emptied in predetermined batch quantities into a holding area. A gate in the bottom of the holding area is operabl |
| 3964435 |
Apparatus for coating elongated objects of small diameter |
June 22, 1976 |
| Apparatus for conveying elongated objects of small diameter. After an object is coated with a protective coating, a first conveyor flight having a generally V-shaped groove receives the leading end of the object. A second conveyor flight has a generally U-shaped groove to be positioned i |
| 3937382 |
Internal pipe clamp with weld backup |
February 10, 1976 |
| An internal pipe clamp is provided by the present invention. The clamp is designed to clamp two joints of pipe into position for a circumferential weld. The clamp includes mechanism for spacing the two joints apart a very short distance to facilitate welding. A backup member is provided |
