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Class Information
Number: 164/421
Name: Metal founding > Means to shape metallic material > Continuous or semicontinuous casting > Hollow casting
Description: Apparatus wherein the product formed contains a central cavity.

Sub-classes under this class:

Class Number Class Name Patents
164/422 Rotary mold 8

Patents under this class:

Patent Number Title Of Patent Date Issued
8336604 Manufacturing method for a multi-channel copper tube, and manufacturing apparatus for the tube Dec. 25, 2012
8074704 Method and apparatus for semi-continuous casting of hollow ingots and products resulting therefrom Dec. 13, 2011
6729381 Process for the production of industrial tubes or section bars from metal and related apparatus May. 4, 2004
6550528 Hot-top type continuous casting machine for hollow billet Apr. 22, 2003
6470958 Method of Producing a cooling plate for iron and steel-making furnaces Oct. 29, 2002
6401800 Device and method for continuous casting of workpieces Jun. 11, 2002
6247520 Pouring table die block positioning device for an uphill vertical continuous casting machine Jun. 19, 2001
6192971 Clamping device for a pouring table in a machine for the continuous vertical casting of cast iron tubes Feb. 27, 2001
5732763 Device for feeding molten metal particularly cast iron, to a casting machine, and casting installation incorporating same Mar. 31, 1998
5279353 Method and apparatus to effect a fine grain size in continuous cast metals Jan. 18, 1994
5052469 Method for continuous casting of a hollow metallic ingot and apparatus therefor Oct. 1, 1991
5027881 Continuous casting apparatus Jul. 2, 1991
4911221 Production of billet or tube Mar. 27, 1990
4901783 Continuous casting apparatus Feb. 20, 1990
4875519 Method of manufacturing hollow billet and apparatus therefor Oct. 24, 1989
4800949 Method and installation for the continuous manufacture of pipes from spheroidal graphite cast-iron having a controlled structure Jan. 31, 1989
4775000 Continuous casting of tubular shapes by incremental centrifugal material deposition Oct. 4, 1988
4766946 Combination of casting nozzles for casting bar and tubular products vertically upwards Aug. 30, 1988
4719959 Apparatus for continuously producing hollow metallic ingot Jan. 19, 1988
4690199 Apparatus for the rotary supply of molten cast-iron to an installation for the vertical continuous casting of a pipe from spheroidal graphite cast-iron Sep. 1, 1987
4632174 Double boiler furnace for vertical ascending pipe casting Dec. 30, 1986
4628987 Apparatus for continuous vertical casting of iron tube Dec. 16, 1986
4614225 Magnetic rotor for the continuous casting of hollow bodies Sep. 30, 1986
4612972 Method and apparatus for electro-magnetic casting of complex shapes Sep. 23, 1986
4611651 Method and apparatus for continuous casting of metal pipe with integral end fitting Sep. 16, 1986
4546816 Method and apparatus of continuously casting hollow round billets with a hypocycloidal mandrel and an inside rolling process Oct. 15, 1985
4535832 Continuous casting apparatus Aug. 20, 1985
4531569 Process and apparatus for producing tubes of reactive metals Jul. 30, 1985
4506723 Tubular die for the continuous casting of a thin-walled tube Mar. 26, 1985
4471830 Continuous casting Sep. 18, 1984
4456053 Apparatus for supporting and centering a die core in continuous tube casting Jun. 26, 1984
4430388 Method and apparatus for continuously casting a hollow metal blank, and the resulting blank Feb. 7, 1984
4355680 Method and apparatus for continuous casting of hollow articles Oct. 26, 1982
4308908 Methods and apparatus for effecting quick mandrel changes in continuous casting operations Jan. 5, 1982
4295516 Symmetrical horizontal continuous casting Oct. 20, 1981
4260010 Dummy bar for use in machines for continuous casting of round hollow ingots Apr. 7, 1981
4236571 Process and installation for the continuous casting of tubular products Dec. 2, 1980
4205716 Continuous casting process and apparatus for production of metallic hollow ingot Jun. 3, 1980
4187898 Mandrel for use in continuous casting of hollow ingots Feb. 12, 1980
4185684 Machine for continuous casting by drawing-up Jan. 29, 1980
4178982 Method and apparatus for continuously casting hollow bars Dec. 18, 1979
4154291 Mandrel for continuous casting of tubular metallic members May. 15, 1979
4146079 Process and apparatus for continuous casting of hollow ingots Mar. 27, 1979
4126175 Electromagnetic mould for the continuous and semicontinuous casting of hollow ingots Nov. 21, 1978
4034798 Integrally cast bearing, method and apparatus for making same Jul. 12, 1977
4000773 Die assembly for continuous vertical casting of tubular metallic products Jan. 4, 1977
3999595 Apparatus for melting hollow metal ingots during electroslag remelting of consumable electrodes Dec. 28, 1976
3990499 Apparatus for making ingots by electroslag remelting Nov. 9, 1976
3965965 Method and apparatus for continuous casting of metal tubing Jun. 29, 1976

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