Method of coupling, and fitting for, lined tubing
Method of producing multiple-wall composite pipes
Method of welding lined pipe
Corrosion resistant tube assembly
Method of lining inner wall surfaces of hollow articles
Method of producing multiple-wall, composite tubular structures
Conduit tube of an electrode device for electrically heating underground hydrocarbon resources
ApplicationNo. 064096 filed on 04/22/1998
US Classes:52/653.2, Having tubular member29/421.1, Shaping by direct application of fluent pressure29/469.5, Metal deforming with nonmetallic bonding29/525.06, Riveting29/897.2, Vehicular structural member making29/897.3, Static structure, e.g., a building component52/655.1, Having specific connector, etc.52/656.9, Joint, connector280/785, Assembled from prefabricated connectable sections280/798, Longitudinal frame member is tubular285/55, Lined296/29, Corners and joints296/32, Top boards296/205, Made of tubular members403/205RIGID ANGLE COUPLING, E.G., ELBOW OR U, ETC.
ExaminersPrimary: Canfield, Robert
Attorney, Agent or Firm
Foreign Patent References
International ClassesF16S 003/08
Foreign Application Priority Data1997-04-22 DE
AbstractA frame construction includes at least one nodal connection element and several tube-shaped frame elements connected thereto. The frame elements and the nodal connection elements are manufactured by hydraulic internal high pressure forming and are joined via plug-type connections. Each nodal connection element has at least two connections for adjoining frame elements. The nodal connection element consists of at least two internal-high-pressure-formed tube-shaped hollow bodies in a nested configuration. The hollow bodies are made of different materials, and have different cuts in the area of the connections--viewed in the longitudinal direction of the respective connection, allowing connection with frame elements made of corresponding different materials. In the area of each connection, one of the two hollow bodies, in addition to being connected in a plug-type connection with the adjoining frame elements made of the same material, is connected by an additional connection.
Field of SearchRIGID ANGLE COUPLING, E.G., ELBOW OR U, ETC.
Made of tubular members
Corners and joints
Assembled from prefabricated connectable sections
Longitudinal frame member is tubular
Shaping by direct application of fluent pressure
Radially expanding internal tube
Metal deforming with nonmetallic bonding
Vehicular structural member making
Static structure, e.g., a building component
Openwork, e.g., a truss, joist, frame, lattice-type or box beam
Having tubular member
Having specific connector, etc.
Bonded to each other
Brazed, soldered or welded