Class 277/610 - Spirally wound structure

Subclass of Class 277 - Seal for a joint or juncture
Definition: End to end joint wherein the seal has a concentrically coiled
No. of patents: 38
Last issue date: 04/17/2007

Number	Title	Issue Date
7206330	End-face seal for graphite electrodes An end-face seal for graphite electrode joints, including a seal formed of a plurality of individual elements interlocked to form a unitary whole, and formed of a material having an oxidation rate equal to or less than that of the electrodes. ...	04/17/2007
7204492	Gaskets A spirally wound gasket is described. The gasket includes a sealing strip (11) wound into a spiral and a support strip (10) wound into a spiral in such a manner that the spiral of the sealing strip is formed interposed between the coils of the supporti...	04/17/2007
7200932	Laser welded multi-layered steel gasket assembly The subject invention provides a method of manufacturing a multi-layered steel gasket assembly including a plurality of steel gasket layers each having a predetermined electrical resistance and including at least one coating layer of a material having an electrical ...	04/10/2007
7179525	Low stress to seal expanded PTFE gasket tape A low stress to seal, unitary gasket tape is provided that is particularly suited for use in form-in-place gaskets. The gasket tape preferably comprises at least two joined porous expanded polytetrafluoroethylene (ePTFE) tapes aligned along tape side surfaces and a ...	02/20/2007
7097179	Apparatus and method for manufacturing rubber-wrapped spiral wound gaskets A spiral wound gasket made of an elongate band with a portion of the elongate band jacketed by a resilient filler material, the jacketed elongate band wrapped in a plurality of overlapping turns to define a radially thick reinforcing member with the band in each tur...	08/29/2006
6926285	Jacketed spiral wound gasket A spiral wound gasket made of an elongate band jacketed by a sealing material, with the elongate band wrapped in overlapping turns to define a radially thick gasket with an inner diameter for being exposed to a material to be sealed and an outer diameter, in which t...	08/09/2005
6708983	Spiral wound cylinder head gasket A gasket having a plurality of superposed windings of a profiled metal strip spirally wound upon itself around a central axis, a plurality of windings of a strip of graphite interposed between at least some of the superposed windings of the metal strip, and a solid ...	03/23/2004
6517086	Exhaust pipe gasket A spiral-wound gasket includes a plurality of tightly wound metal windings to form a core. The windings each have a Chervon cross-section, wherein V-notched undulations of each winding registers with an adjacent winding at said notches. The edges of the w...	02/11/2003
6511076	Fiber gasket and method of making same A gasket (1) is made by repetitively spirally winding a fiber (3) back on itself in a closed path. The gasket (1) so made has a multi-layer spiral winding (1) formed in a loop (5). The fiber (3) can be wound at a constant wrap rate to form a gasket with a...	01/28/2003
6250646	High pressure-high temperature pipe gasket A high pressure-high temperature gasket for high pressure-high temperature pipe is disclosed. The high pressure-high temperature gasket comprises a hollow annular member defining an interior tunnel. The interior tunnel is filled with a stuffing to enhance...	06/26/2001
6082739	Gland packing The present invention relates to a gland packing which is made of a material configured by laminating an expanded graphite tape into a spiral shape by winding. The gland packing can prevent penetration leakage through minute gaps existing in the laminated...	07/04/2000
5997007	Spiral wound type gasket In order to provide a spiral wound type gasket, in which centering of the gasket body is easy and a good sealing property at a low superficial pressure can be obtained, the spiral wound type gasket is constructed by winding a metal hoop member having an a...	12/07/1999
5964468	Anti-buckling spiral wound gasket An improved spiral wound gasket is disclosed that deters and redirects buckling. The invention includes the following: an integral inner ring, a gasket element, outer wraps and a outer guide ring. The integral inner ring is a winding of a thin strip of me...	10/12/1999
5913522	Spirally-bound flange seal with separate soft layers A flange seal utilizing a spirally wound steel strip with a V-shaped central portion and a sealing strip between the turns of the steel strip has a pair of layers of soft sealing material on opposite sides of the sealing ring engaging projecting portions ...	06/22/1999
5823542	Spiral wound gasket A spiral wound gasket able to compress and seal under very low loads and provide sealing capabilities. The gasket generally includes a spiral wound metal portion and an outer guide ring to limit the compression of the gasket. For improved sealing capabili...	10/20/1998
5794946	Spiral wound gasket A spiral wound gasket able to compress and seal under various loads and provide sealing capabilities. The gasket generally includes a spiral wound portion and an outer guide ring to limit the compression of the gasket. The spiral winding is formed of inte...	08/18/1998
5683091	Spiral wound gasket with at least five inner and outer plies secured by at least four welds In order to obtain an extremely good gas sealing property, in a spiral gasket, in which a metal hoop material and a filler material formed approximately in a V-shape in the cross-section are wound in a spiral, superposed on each other, only the hoop mater...	11/04/1997
5669613	Sealing gasket arrangement A sealing gasket (9, FIG. 1 ) has a spiral wound element 10 secured to a surrounding locating plate 11 which is thinner than usual locating rings and may include bolt apertures 231 etc. The plate 11 has a central aperture 22 which is surrounded...	09/23/1997
5664791	Spiral wound gasket bridged to guide ring A spiral wound gasket for sealing between sections of pipe and which includes means for preventing buckling of the spiral winding during compression. The gasket includes a solid outer guide ring for limiting compression of the gasket and positioning the g...	09/09/1997
5645284	Gasket A sealing gasket having a spiral wound gasket element and an inner annular ring having faces formed of exfoliated graphite material....	07/08/1997
5609344	Spiral gasket having a centering spring A spiral gasket apparatus, capable of being held on an inclined flue gas outflow pipe without falling off therefrom, is constructed by winding a metal hoop member and a filler member, superposed on each other. A part of the hoop member from the beginning ...	03/11/1997
5551706	Composite gasket for sealing flanges and method for making and using same Improved gasket material and method for use in sealing various flanged apparatus, such as found in distillation columns, glass lined vessels and transformer radiator flange seals. The gasket material comprises a cylindrical core of elongated polytetrafluo...	09/03/1996
5527047	Fire safe spiral wound gasket with expanded PTFE and graphite windings A spiral wound gasket having multiple windings of spirally wound strips of metal, fire resistant compressible filler material and oxidizer resistant compressible filler material is disclosed. The fire resistant filler material is arranged in a region towa...	06/18/1996
5511797	Tandem seal gasket assembly A tandem seal gasket assembly is provided that has a first seal that is compatible with highly corrosive process media or in applications where high purity is required. A radially outer seal is intended to address heat resistant or elevated temperature re...	04/30/1996
5411274	Vortex gasket for automative exhaust system A vortex gasket for automotive exhaust system, preferably used with a special flange having a conical seal surface, is formed by spirally overlaying a metal hoop (2) of flat strip, and an inorganic filler (3) of tape form, and annularly spot welding a win...	05/02/1995
5348310	Double spiral-wound gasket assembly with leak detection A gasket assembly with double spiral-wound gaskets and a middle draw-off port for leak detection in service with a process fluid featuring 1) an inner primary seal spiral-wound gasket with a high spring rate to hold the process fluid and pressure, 2) an o...	09/20/1994
5308090	Spiral wound gasket A spiral wound gasket having an annular body serving as a centering member which is integrally disposed at the inner periphery side of a gasket body formed by winding, in the form of a spiral. The gasket body comprises a metal hoop material and a filler m...	05/03/1994
5275423	Spiral wound gasket A spiral wound gasket comprises an annulus constituted by a plurality of superposed turns of a profiled metal strip wound upon itself to form a spiral and, interposed between at least some of said superposed turns, a number of turns of a relatively soft s...	01/04/1994
5161807	Spiral wound gasket A spiral wound gasket comprises an annulus constituted by a plurality of superposed turns of a profiled metal strip wound upon itself to form a spiral and, interposed between at least some of said superposed turns, a number of turns of a relatively soft s...	11/10/1992
5082296	Spiral wound gasket and fabrication method thereof A spiral wound gasket is formed by winding combinedly and spirally a metal strip having at least one bend along its lateral direction and a belt-shaped filler in such a way that the metal strip and the filler are laminated together along their longitudina...	01/21/1992
4673187	Bimetallic spiral wound gasket A temperature-sensitive gasket comprised of an annular ring formed by alternating layers of a spirally wound bimetallic strip and an adjacent strip of soft filler material, such as Teflon. When viewed in cross-section, the bimetallic strip has a centrally...	06/16/1987
4626002	Self-acting seal between adjacent pipe ends of a pressure vessel A self-acting gap seal for a gap existing between individual modules of a composite, annular pressure vessel comprising a flat, thin-walled seal element on the inside of the pressure vessel to bridge the gap plus the circumferential region adjacent the ga...	12/02/1986
4431197	O-Ring gaskets and method of manufacturing same A gasket including an O-ring (12) of an elastomeric material and an annulus (14) formed from a substantially continuous filamentary material, which is wound to form the annulus, the fibre being incorporated in a resinous material and the O-ring being atta...	02/14/1984
4364982	Gaskets A spiral wound gasket is provided with an inner supporting ring coated with an elastomer material; it is preferably also provided with a plain metal outer guide ring....	12/21/1982
4363847	Flexible sheet material Flexible sheet material suitable for use in the manufacture of gaskets has a basis (85-95% by weight) of fine particles of a non-fibrous charged-layer-silicate mineral such as chlorite and includes a minor proportion (at least 2% but not more than 15% by ...	12/14/1982
4203191	Process and apparatus for assembling spiral wound gaskets into gauge rings Disclosed is a process and apparatus for assemblying spiral wound gaskets into gauge rings. The process comprises exerting inwardly directed radial forces on the exterior of the spiral wound gasket, causing it to decrease in diameter sufficiently to slip ...	05/20/1980
4189819	Method of manufacturing metallic spirally wound gaskets For manufacturing a metallic spirally wound gasket having an outer centring ring it is proposed spirally to coil a corrugated strip of metallic material to form a sealing element of desired diameter and to surround the thus formed sealing element with a c...	02/26/1980
4019244	Spiral wound gasket assembly method Spiral wound gasket assembly and method of making same, wherein a spiral wound gasket ring is positioned in an inner groove in a metal gauge ring and a deformation is formed in the gauge ring adjacent the groove to reduce the size of the gauge ring groove...	04/26/1977

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Class 277/610 - Spirally wound structure