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Class 164/465 - Using a core or mandrel


Subclass of Class 164 - Metal founding
Definition: Process wherein the central cavity is shaped by applying
No. of patents: 43
Last issue date: 03/07/2006


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NumberTitleIssue Date
7008204Rotating extrusion die with spray nozzle
An extrusion die for extruding biodegradable material, the extrusion die comprising: a mandrel; a nozzle extending from the mandrel; an outer member positioned near the mandrel; an extrusion orifice between the mandrel and the outer member; a member in communication...
03/07/2006
6938668Manufacturing medical devices by vapor deposition
A method of forming a medical device, the method including the steps of providing a substrate, depositing a metallic layer on the substrate by a vapor deposition process, and removing the metallic layer from the substrate. The metallic layer thus removed is the medi...
09/06/2005
6470958Method of Producing a cooling plate for iron and steel-making furnaces
A method for production of a cooling plate (50, 80) with integrated coolant ducts (52, 84) for iron and steel making furnaces, in particular blast furnaces, is described. A preform of the cooling plate (50, 80) is continuously cast by a continuous casting...
10/29/2002
6401800Device and method for continuous casting of workpieces
A device for continuous. casting of workpieces has a melting crucible, a filling device, and a forming tool provided with a temperature control system. The temperature control system of the forming tool is designed so that areas of the workpiece to be man...
06/11/2002
6305459Method of making spray-formed articles using a polymeric mandrel
Method of making valve seats by thermally spraying bulk material. The method includes the steps of: (i) preparing a cylindrical polymeric mandrel having an outside dimension not greater than the desired inside dimension of the desired insert, the mandrel ...
10/23/2001
6305461Drop leg booster for carburetors
A booster equipped carburetor in which the venturi bores in the carburetor have an enhanced drop leg booster therein. The drop leg booster has a venturi orifice and a "bent" channel member. The channel member communicates fuel to the venturi orifice and p...
10/23/2001
6270849Method of manufacturing a metal and polymeric composite article
A method of manufacturing a metal and polymeric composite article by the following steps. Droplets of spray deposited metal and spray deposited polymeric material are combined to form an article having the polymeric material interspersed within the metal....
08/07/2001
6203732Method for manufacturing intraluminal device
A generally tubular device (e.g., a stent or catheter) for placement in a lumen of a patient's body is made by forming a depressed pattern in an external surface of a mold. The depressed pattern corresponds to a desired shape of the generally tubular devi...
03/20/2001
6019157Method of regenerating foundry sand
The present invention aims to provide a method of regenerating foundry sand whereby the carbon component adhering to the surface of spent foundry sand and similar substances is combusted efficiently, allowing the foundry sand to be regenerated at low cost...
02/01/2000
5897922Method to manufacture reinforced axi-symmetric metal matrix composite shapes
A composite part consisting of a metallic matrix and reinforcing fibers is fabricated by the simultaneous winding of the fiber and plasma spraying of the matrix onto a rotating mandrel, wherein an axi-symmetric part is produced with multiple layers of the...
04/27/1999
5803996Rod-shaped or tubular amorphous Zr alloy made by die casting and method for manufacturing said amorphous Zr alloy
An alloy material 4 received in a melting hearth 1 is melted by high-density energy supplied from a heat source 5. The molten alloy is transferred to a forced-cooled die 3 having a cavity 2 defining the profile of a product, and quenched to an amorphous s...
09/08/1998
5279353Method and apparatus to effect a fine grain size in continuous cast metals
Method and apparatus used for continuous casting of copper alloy rods and tubes for obtaining a fine grain size therein. Liquidus copper alloy material flows from a reservoir area or crucible into a continuous casting die through spaced apart feed slots d...
01/18/1994
5158227Process of making seamless metal tube
A process for the continuous manufacture of seamless tube by confining a selected length of metal strip in the form of a tube and with at least two longitudinal abutting edges and completely melting a selected length of such tubular form to form a seamles...
10/27/1992
5052469Method for continuous casting of a hollow metallic ingot and apparatus therefor
In a continuous casting a hollow ingot by means of a forcedly cooled tubular mold and a core, gas is introduced around an outer peripheral surface of the core along longitudinal slits to form an annular gap surrounding an inner peripheral surface of hollo...
10/01/1991
4974660Process and apparatus for the production of hollow bodies by continuously casting in a magnetic field
The process and apparatus according to the invention relates to the continuous casting of hollow bodies of metals such as aluminium, copper, steels of all types, or other metals or alloys. The process comprises introducing a liquid metal into an annular s...
12/04/1990
4875519Method of manufacturing hollow billet and apparatus therefor
A method and apparatus utilizing a core is located at a central portion of a molten metal storing portion in a vertical semi-continuous mold. The molten metal is poured into the molten metal storing portion, and casting takes place with the inner diameter...
10/24/1989
4729422Process and apparatus for the production of hollow bodies by continuously casting in a magnetic field
The process and apparatus according to the invention concern continuous casting of hollow bodies of metals such as aluminum, copper, steels of all types, or other metals or alloys. The process comprises introducing the liquid metal into an annular space b...
03/08/1988
4719959Apparatus for continuously producing hollow metallic ingot
The apparatus comprises an annular water-cooled metallic mold having open upper and lower ends, a core member located in the inner space of the mold to form therebetween an annular casting passage for solidifying therein the molten metal supplied in the c...
01/19/1988
4707313Method of making a laminated structure for use in an electrical apparatus
A method of making a laminated structure for use in an electrical apparatus. A female mold is produced having an upwardly facing cavity of a shape corresponding to the laminated structure. A layer of a ferrous metal is sprayed onto the bottom surface of t...
11/17/1987
4632174Double boiler furnace for vertical ascending pipe casting
In a continuous vertical ascending casting installation for iron pipes T, graphite elements 3 defining a molten metal feed chimney 28, a die and coaxial core arrangement 13, 14 and an expansion vessel 16 are mounted under a cover 2 of an electric furnace ...
12/30/1986
4614225Magnetic rotor for the continuous casting of hollow bodies
The process and the device according to the invention relate to the continuous casting of hollow bodies made of metals such as aluminum, copper, steels of all types or other metals or alloys. The process involves introducing the liquid metal into an annul...
09/30/1986
4612972Method and apparatus for electro-magnetic casting of complex shapes
An apparatus is provided for electromagnetically coiling a molten material into a longitudinally extending casting defining a longitudinal axis thereof. The casting has a desired cross section extending perpendicular to the longitudinal axis. At least one...
09/23/1986
4611651Method and apparatus for continuous casting of metal pipe with integral end fitting
The vertically ascending casting of a thin-walled metal pipe and integral end fitting from a bath of molten metal is implemented using a housing 12 and a core 14 to mold the end fitting or bell housing and a tubular draw tube 6 to mold the pipe shank. The...
09/16/1986
4569386Method of manufacturing a cylindrical billet
A method of manufacturing a cylindrical billet having a predetermined length useable as raw material for producing a pipe. This method is practiced by way of the steps of drawing a cast slab from a casting mold on a continuous casting stand, spirally wind...
02/11/1986
4546816Method and apparatus of continuously casting hollow round billets with a hypocycloidal mandrel and an inside rolling process
The invention provides an apparatus and process to cast continuously high quality hollow round steel billets or tubes. The hollow round steel billets are produced by a compact, high production casting machine incorporating a rotating hypocycloidal mandrel...
10/15/1985
4535832Continuous casting apparatus
For use in a continuous casting apparatus wherein molten metal flows through a die progressively and is solidified in the die and withdrawn from the die, a die and cooling assembly comprising a tubular die having an external tapered surface which is unifo...
08/20/1985
4531569Process and apparatus for producing tubes of reactive metals
To produce tubes of reactive metals, a melt (14) is removed from the annu gap (13) of a crucible (10). The temperature of the melt (14) is such as to ensure the formation of the solidus-liquidus zone (33) directly behind the annular gap (13), a planar so...
07/30/1985
4506723Tubular die for the continuous casting of a thin-walled tube
The die (6) comprises a thick cylindrical body (7) which is surrounded by a cooling jacket (15) clamped against the pouring basin (2) and in contact with the latter in a plane (P). The body (7) is extended in the casting orifice (4) by a composite head (1...
03/26/1985
4471830Continuous casting
In the art of continuous vertical casting, an improved cooler assembly surrounds the forming die through which molten metal is poured for forming elongated metallic bar products which may be solid or hollow. The cooler assembly includes a cooling sleeve s...
09/18/1984
4456053Apparatus for supporting and centering a die core in continuous tube casting
A cap 42 with a lower spherical surface 46 is held against the flared head 38 of a casting core 24 and rests on the spherical upper surface of an annular bed 50 which is fixed above a casting head 12. The bed is coaxial with an enlarged orifice 40 for the...
06/26/1984
4257472Continuous casting of hollow shapes
An apparatus for the continuous casting of hollow metal shapes includes a cooled, open-ended mold having a cooled mandrel positioned centrally of the mold cavity. The inner surface of the mold and outer surface of the mandrel together define a casting spa...
03/24/1981
4236571Process and installation for the continuous casting of tubular products
The process is particularly intended for the casting of thin tubes of iron in a vertical annular die defined by a mould and a core. It comprises maintaining in the liquid state metal under pressure poured into the die and in contact with the core so as to...
12/02/1980
4212343Continuous casting method and apparatus for structurally defined metallic strips
Structurally defined continuous metal strips are formed by forcing molten metal onto the surface of a moving chill body under pressure through a slotted nozzle located in close proximity to the surface of the chill body. The surface of the chill body (chi...
07/15/1980
4205716Continuous casting process and apparatus for production of metallic hollow ingot
Continuous casting process for the production of hollow ingot using an improved direct chill casting equipment having a molding system comprising a hollow mold and a movable platform, wherein at least one core and a pipe for introducing outer air are prov...
06/03/1980
4187898Mandrel for use in continuous casting of hollow ingots
A mandrel for continuous casting of hollow ingots comprising a hollow rod having a collar and a tapered portion thereof introduced into a mold cavity. Mounted on the collar is a protective sleeve axially movable along the rod under the hollow action of a ...
02/12/1980
4178982Method and apparatus for continuously casting hollow bars
Method and apparatus for continuously casting hollow bars in which a one-piece mandrel is suspended from a support bar secured across the top of a female die by a retaining ring which holds down the female die. A cooler surrounds the female die and the re...
12/18/1979
4108235Electroslag remelting apparatus having relative mold movement and provision for introduction of slag
Apparatus for electroslag remelting of at least one consumable electrode in a cooled mold assembly with a cooled bottom plate having mechanism accomplishing relative movement between at least a part of the mold assembly and the ingot being formed during f...
08/22/1978
4075881Method of and device for making rods, tubes and profiled articles
A method of and device for making rods, tubes and profiled articles directly from a melt, especially metallic melt, by extrusion pressing by means of a forming tool and die. The melt charged into a receiving compartment of the device in successive batches...
02/28/1978
4000773Die assembly for continuous vertical casting of tubular metallic products
A two-piece die assembly for use in continuous vertical casting of tubular metallic products from material such as bronze wherein one piece includes an outer sleeve and the other piece is an inner mandrel axially received in the sleeve, both pieces being ...
01/04/1977
3990499Apparatus for making ingots by electroslag remelting
Apparatus for electroslag remelting of at least one consumable electrode in a cooled mold assembly with a cooled bottom plate having mechanism accomplishing relative movement between at least a part of the mold assembly and the ingot being formed during f...
11/09/1976
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