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Class 264/171.2 - Producing coiled or helical containing structure or layer


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes wherein (a) the metal preform is either helical
No. of patents: 37
Last issue date: 01/29/2008


NumberTitleIssue Date
7323055Extrusion head for extruding a high viscous melting covering element of a covered core wire
There is provided an extrusion head that is capable of largely increasing a production speed rather than a conventional head that extrudes supplies a high viscous melt-coating composition. In an extrusion head 12 that comprises a die ring 12 having an ...
01/29/2008
6461554Pipe thermally insulated by an elastomeric material and manufacturing method
The present invention relates to a method intended for heat insulation of a pipe (1), comprising the following successive stages: depositing, on the outer surface of the pipe moving longitudinally, a thickness (3) of an insulating material made of elastomer ha...
10/08/2002
6254924Paired electrical cable having improved transmission properties and method for making same
A pre-twisted cable pair and a method for processing such pairs into an electrical cable having improved electrical and mechanical properties is disclosed. At least one insulated wire for transmitting electrical signals is pre-twisted prior to pairing wit...
07/03/2001
5897819Process of making a guide wire for a catheter
In a guide wire is for a catheter, a core wire prepared by twisting a plurality of thin threads in which a leading end of the core wire is diametrically reduced to be a thinnest tip. A resin layer is coated on an outer surface of the core wire. The thinne...
04/27/1999
5888436Manufacture of variable stiffness microtubing
A method for manufacturing novel composite microtubing with variable stiffness over the length of the tubing and a continuous manufacturing process....
03/30/1999
5651174Intravascular radially expandable stent
A method for making a radially expandable stent for implantation within a body lumen having a generally cylindrical body with open proximal and distal ends, the cylindrical body comprising a plurality of metal elements joined to allow flexing of the cylin...
07/29/1997
5454879Helically grown monolithic high voltage photovoltaic devices and method therefor
The invention provides for methods that include the steps of continuous liquid phase epitaxy followed by evaporation or implantation of dopant, barrier-interconnect, and additional interconnect-dopant layers to grow cylindrical helical multi-layer structu...
10/03/1995
5380472Method and apparatus for manufacturing chamber members for accepting light waveguides
An apparatus for forming a chamber member which receives optical light waveguides comprises an extruder head for extruding the chamber member followed by a calibrating device which inserts members into each of the chambers to insure the desired dimensions...
01/10/1995
5360497Method of forming an optical waveguide with a reinforced protective covering
A method for covering at least one optical fiber with a protective layer comprises extruding the protective layer and embedding reinforcing elements in the protective layer to form a composite covering and simultaneously introducing the optical fiber into...
11/01/1994
5244619Method of making catheter with irregular inner and/or outer surfaces to reduce travelling friction
Method of making a catheter having an irregular outer diameter and/or an irregular inner diameter caused by embedment of a reinforcing member, thereby reducing sliding friction compared to conventional smooth-wall catheters....
09/14/1993
5232645Process for making coiled brake tubing
Process for making coiled brake Tubing for truck/trailer rigs formed of a blend of polyolefin materials....
08/03/1993
5075062Method of fabricating a medical spincterotome
A method of fabrication of a sphincterotome, such as a papillotome, for surgical cutting using an electrically conductive cutter wire. The sphincterotome includes a multi-lumen tubular member, with one lumen having an electrical conductor disposed therein...
12/24/1991
4999148Method and apparatus for making reinforced insulated electrical conductor
Extrusion die assembly and method of insulating conductor in which tensile reinforcing elements are introduced into the conductor insulation as it is being extruded. During extrusion, the reinforcing element engage outwardly against a position control mem...
03/12/1991
4966637Method for manufacturing an electromagnetic shielding gasket
The present invention relates to a process of forming an electromagnetic shielding gasket by forming a core of elastomeric material, coating the core with bands of an electrically conductive textile material, passing the coating core through a die to cali...
10/30/1990
4929294Method of creating profiling projections on plastic-covered steel parts
A method of covering steel parts onto the outer surface of which there is applied a plastic coating which is surrounded by an embedding material. In order to obtain in a simple manner increased adherence between plastic coating and embedding material a gr...
05/29/1990
4840452Light wave conductor-sensor for tension
A light wave conductor-sensor for tension, comprises a primary coated light wave conducting element, at least one coil wound on the primary light wave conducting element and forming together with the latter a sensor core, and a compound including longitud...
06/20/1989
4744935Process and apparatus for manufacturing a cable with helical filaments embedded in plastic
Process and apparatus for making a cable with filiform elements, such as protected optical fibers or electrical conductors, in open-helix configuration and embedded in a polymeric material. The elements are fed through an extruder where the polymeric mate...
05/17/1988
4731134Methods of manufacturing electric cable for transporting very high current at low voltage
An electric cable (1) for transporting very high current at low voltage, in particular a welding cable for use in robot welders, comprises at least one multi-strand conductor (2) and an outer sheath (4), cooling water circulates inside the cable, and the ...
03/15/1988
4665604Non-fused torque control catheter
Disclosed is a non-fused torque control catheter and a method for manufacturing such a catheter. This non-fused catheter has a stiff braid-reinforced body and a pliable non-braided tip....
05/19/1987
4645628Production of optical cable
In the production of an optical fibre cable a core (3) of thermoplastics material is extruded with a plurality of longitudinally-extending grooves (15) in its outer surface around an electrical conductor (1) and is initially cooled: then following the int...
02/24/1987
4623495Method and apparatus for manufacturing an optical fiber cable
A method of manufacturing an optical fiber cable involves embedding a traction-resistant axial strength member of at least one wire of precipitation hardened martensitic steel in a rod of thermoplastic material extruded thereabout while forming longitudin...
11/18/1986
4541970Method for fabricating a cable core including optical fibers
There is disclosed a method for fabricating an undersea communications cable core containing optical fibers. The method includes heating a central strength member and extruding a first layer of thermoplastic elastomer onto the heated central strength memb...
09/17/1985
4516922Hybrid apparatus for insulating conductors
A hybrid extruder provides plastic insulation which is as uniformly and tightly disposed about a substrate as that produced in a conventional pressure extruder and accommodates irregular substrates. The hybrid extruder includes a core tube which is positi...
05/14/1985
4489021Process for manufacturing large-length and large-diameter hoses
There is disclosed a process for manufacturing large-diameter, large-length hoses. The process is characterized by applying the elements required for building the hoses onto a flexible foundation lead through an advancing or through an advancing and rotat...
12/18/1984
4472126Apparatus for manufacturing reinforced hoses
In an apparatus for manufacturing reinforced hoses, a reinforced layer forming device is arranged concentric with material efflux port of an outer tube extruder and an inner tube extruder so that inner tube formation, the reinforcing layer formation and t...
09/18/1984
4412882Method for producing composite pipes
A novel method for producing a composite pipe having a desired wall thickness by using an endless steel belt as a mold which moves axially while rotating in the circumferential direction of a mandrel. In this method, a thickness regulating device spaced a...
11/01/1983
4409154Method and apparatus for manufacturing a watertight optical fiber cable
A method of manufacturing an optical fiber cable of the type which compri at least one cellular cylindrical structure of plastic material having a plurality of longitudinal bores housing individual optical fibers and filled with a viscous substance. The ...
10/11/1983
4309597Blanket wire utilizing positive temperature coefficient resistance heater
A heating element for use in an electric blanket or the like including conductors spaced apart in a positive temperature coefficient (PTC) material which serves as a self-limiting heater. The conductors are separated by a spacer which prevents the conduct...
01/05/1982
4309596Flexible self-limiting heating cable
A heating cable having spaced helically wound conductor wires separated by a layer of positive temperature coefficient material which functions as a self-limiting heating element. At least one of the conductor wires is helically disposed on a stranded cor...
01/05/1982
4271350Blanket wire utilizing positive temperature coefficient resistance heater
A heating element for use in an electric blanket or the like including conductors spaced apart in a positive temperature coefficient (PTC) material which serves as a self-limiting heater. The conductors are separated by a spacer which prevents the conduct...
06/02/1981
4205034Method for making a reinforced tubular article
A flexible preferably tubular article is described having an outer abrasion-resistant protective sleeve which is cured-in-place on a flexible core or tube to form a unitary flexible composite....
05/27/1980
4181486Apparatus for producing the insulating layer of a coaxial cable
A spiral insulation rib between the inner and outer conductors of a coaxial cable is provided having a rectangular cross section by pointing the extrusion slit approximately in the direction of the spiral winding and by providing side surfaces of the extr...
01/01/1980
4171998Method for decontaminating and sealing the interior spaces of an insulated electrical device utilizing mineral oil-extended polyurethanes
This invention provides a method of sealing and purging contaminants from the internal free spaces of an insulated electrical device by forcing into said free spaces a low viscosity material that acts to displace fluid contaminants from within said free s...
10/23/1979
4158033Halogenated butyl interlayer for reinforced elastomeric hose articles
A composite reinforced vulcanized elastomeric hose is disclosed including a tube, an outer cover, an interlayer interposed between the tube and cover, and a reinforcement embedded in the hose wall. The outer cover and inner tube are composed of dissimilar...
06/12/1979
4131759Slip sleeve mechanism for a strength tapered caged armored electromechanical cable
A multiple caged armored electromechanical cable is provided which is characterized in being torque balanced and strength tapered throughout its entire length. The selective strength tapering of the cable permits the orientation of the cable such that the...
12/26/1978
4113820Process of the making of extruded thermoplastic bodies and device for the carrying out of the said process
A method for embedding a reinforcing element within a molded thermoplastic body and a device for accomplishing said method which comprises a single extrusion head, having a duct for feeding thermoplastic material to a sizing run. The axis of the duct is a...
09/12/1978
3972761Wrapping of pipes or tubes
A steel pipe with longitudinal welding seam is wrapped helically by means of a polyethylene ribbon which is normally stretched, but temporary stretch relief provides for a thicker envelope above and adjacent to the seam. A ribbon deflector roll and a pres...
08/03/1976
 
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