Class 138/122 - Spirally

Subclass of Class 138 - Pipes and tubular conduits
Definition: Device wherein the folds are found in the shape of a spiral
No. of applications: 55
Last issue date: 11/17/2011

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Application No.	Application Title	Issue Date
20110277865	AXIALLY COMPRESSIBLE FLEXIBLE TUBING AND METHOD FOR MAKING SAME A length of flexible helically corrugated rubber tubing is provided with certain characteristics that enable it to be axially compressed to less than half of its normal relaxed length using minimal force while still providing a high resistance to crushing. The tubing ha...	11/17/2011
20110005291	METHOD AND APPARATUS FOR FORMING UNDULATING CONDUIT Method and apparatus for forming conduit or pipe of various sizes into undulating, helical pipe by feeding a length of conduit at a controlled rate through a bending mechanism while also continuously rotating the pipe at a controlled rate so that bending occurs in multi...	01/13/2011
20100269943	DUCT STRUCTURE OF A HOLLOW WALL USING A THROUGH-PASS DUCT MEMBER To provide a through-pass duct member enabling the space in the wall to be more positively shut off against the external space irrespective of the state of the through-pass holes of hollow wall. A duct member made of synthetic resin having ...	10/28/2010
20100269942	Dual Layer Pipe A corrugated steel pipe with a dual layer, and more particularly, to a corrugated steel pipe with a dual layer, which can dispose a smooth-walled plastic pipe in a corrugated steel pipe more conveniently, thereby providing a simple construction and conveniently assembli...	10/28/2010
20100224276	Flexible, stretchable, crush resistant hose well suited for medical applications A flexible, stretchable, crush resistant hose particularly well suited for supplying breathing gases to patients in medical applications and the like has a helix defined by coils of thermoplastic material, and a web of thermoplastic material bonded or welded to adjacent...	09/09/2010
20100206419	STRETCHABLE METAL TUBE A tube is made of profiled metal strip which includes an end leg extending in parallel relationship to a tube axis, an inner leg extending in parallel relationship to the tube axis at a first distance, and an outer leg extending in parallel relationship to the tube axis...	08/19/2010
20100180975	CONVOLUTED COATED BRAIDED HOSE ASSEMBLY AND METHOD OF MAKING SAME A seamless convoluted hose assembly. The assembly includes: a tubular inner liner having an outer surface, an inner surface, and an inner liner wall therebetween which defines a passageway. The assembly further includes a helical coil or a plurality of annular loops whi...	07/22/2010
20100180973	METHOD FOR REHABILITATING EXISTING PIPE In an existing pipe rehabilitating method according to an embodiment, a profile strip (2) for lining an existing pipe (10) is shaped using a thermoplastic resin, joint portions (21) are provided at both end portions in a width direction of the profi...	07/22/2010
20100154914	SEMI-RIGID FLEXIBLE DUCT A semi-rigid, flexible duct including a pair of coaxial sleeves, namely an inner sleeve and an outer sleeve disposed parallel to and about the inner sleeve and a resilient wound element disposed between the sleeves. Each of the inner sleeve and the outer sleeve constitu...	06/24/2010
20100132824	Composite reinforced strip windable to form a helical pipe and method therefor A composite strip (10) windable to form a helical pipe for transporting fluid is disclosed. The composite strip comprises: an elongate plastic strip (11) having a base portion (12), the base portion (12) having an upper side defining an outer...	06/03/2010
20100126616	Connection structure of wave-shaped synthetic resin pipes, wave-shaped synthetic resin pipes used for the connection structure, and manufacturing method thereof Provided are a connection structure for connecting corrugated synthetic resin pipes and a corrugated synthetic resin pipe used in the connection structure. The pipe is lightweight, low cost, and simply structured with a small number of components, having sufficient resi...	05/27/2010
20100108170	Crush resistant stay put hose A crush resistant and stay put hose is provided. There is a helical member having a plurality of coils and a wall surface of one or more thermoplastic polymer layers. The layers extend from one coil to the next and the wall surface between the coils has at least one liv...	05/06/2010
20100089479	Self-extending electrical hose A hose construction adapted for efficiently conveying fluids while extended, but capable of neatly contracting to a fraction of its extended length for storage or transportation, while integrally incorporating lines for electrical requirements. Storage may be within an ...	04/15/2010
20100037973	Flexible hose resistant to rollover An efficient flexible hose construction is provided which incorporates resistance, when subjected to high negative pressure loads, to the collapse failure known “rollover” or “shingling”. The construction relates to a means of increasing the torsion capability o...	02/18/2010
20090301593	HOSES WITH CONNECTION PORTIONS A hose consisting of a smooth tubular wall and a rib wound spirally on the smooth tubular wall. The hose includes at least one duct portion and at least one connection portion; in the connection portions, the rib is wound spirally with a narrower pitch than on the duct ...	12/10/2009
20090277525	Stretch Hose An elastically stretchable stretch hose (2) with a support spiral (4) acting as a tension spring and with a hose wall (6) connected with the support spiral (4) and consisting of a synthetic material, shall have a relatively low weight. Furthe...	11/12/2009
20090218037	Piping The invention relates to piping comprising a portion wherein the centreline of the portion follows a substantially helical path, wherein the amplitude of the helix is less than or equal to one half of the internal diameter of the piping. When fluid flows in such piping,...	09/03/2009
20090211659	Hose anti-collapse ribs, systems and methods An integral hose anti-collapse rib comprises a unitary body having a first cantilevered portion curved in a first direction. This first cantilevered portion defines a first end. A second cantilevered portion is curved in a direction opposite the direction of the first c...	08/27/2009
20090133771	Method and Apparatus for Making Plastic Drainage Pipe Reinforced By Steel Strips and the Plastic Drainage Pipe Reinforced By Steel The present invention relates to a method for making a plastic drainage pipeline reinforced by steel strips, comprising the steps of (1) steel strips and plastic being integrated to form a composite profile having ribs reinforced by steel strips; (2) the composite profi...	05/28/2009
20090133769	STRUCTURE OF HOSE A hose includes at least an inner-layer tubular member, an intermediate layer, and an outer-layer tubular member. Both the inner-layer tubular member and the outer-layer tubular member are made of plastics. The intermediate layer is formed by wrapping a net. An outer su...	05/28/2009
20090126817	LIMB FOR BREATHING CIRCUIT A limb for a breathing circuit manufactured from very thin walled polymer materials has an elongate axial reinforcing spine lying freely inside the conduit and fixed to each end connector. The spine is laterally compliant but axially stiff. The spine provides resistance...	05/21/2009
20090107571	Flexible Hose Article And Related Methods The present invention generally relates to flexible hose articles and methods. Some embodiments include hoses that can be reversibly bent and/or shaped. Furthermore, some embodiments can comprise methods for making and/or using such hose articles....	04/30/2009
20090050227	Electrical stretch hose The present invention is an electrical extensible hose that includes an outer shell, an inner core and at least one helical wire, which acts like a skeleton. In the present invention one implemented an additional wire that was conductive. The outer shell and inner core ...	02/26/2009
20080295276	Flexible hose and vacuum cleaner having the same A flexible hose includes a hose body and a plurality of pleats formed on an outer circumferential surface of the hose body by predetermined intervals to give flexibility to the flexible hose. Each of the plurality of pleats includes an entering portion formed to be incl...	12/04/2008
20080264509	SPIRAL-WOUND DIAPHRAGM BELLOWS, AND METHOD OF MAKING SUCH A DIAPHRAGM BELLOWS A diaphragm bellows includes a spiral-wound, pre-profiled metal strip having neighboring turns which are connected by a continuous welding seam in an area of an outer diameter or inner diameter of the metal strip. Neighboring flanks of the metal strip enter a region of ...	10/30/2008
20080264510	APPARATUS FOR PRODUCING HELICALLY CORRUGATED METAL PIPE AND RELATED METHOD A pipe manufacturing system and method for producing helically corrugated metal pipe is provided. The system and method utilize controlled profile formation....	10/30/2008
20080245435	STRETCHABLE METAL TUBE A tube is made of profiled metal strip which includes an end leg extending in parallel relationship to a tube axis, an inner leg extending in parallel relationship to the tube axis at a first distance, and an outer leg extending in parallel relationship to the tube axis...	10/09/2008
20080236784	Pipe arrangement A pipe arrangement for geothermal probes includes at least two pipes having at least one layer each that surrounds a lumen. One of the pipes functions as inflow pipe and the other pipe functions as return flow pipe. At least one of the pipes is produced at least in part...	10/02/2008
20080223472	Flexible hose and vacuum cleaner having the same A flexible hose includes a bellows pipe wall and an air barrier. The bellows pipe wall includes peaks defined on an outer surface of the bellows pipe wall, valleys is adjacent a respective peak, and grooves defined on an inner surface of the bellows pipe wall. Each groo...	09/18/2008
20080210327	CORRUGATED PIPE WITH OUTER LAYER A pipe having an axially extending bore defined by a smooth inner wall fused to a corrugated outer wall is provided. The corrugated outer wall has axially adjacent, annular, outwardly-extending crests separated by valleys. The pipe further includes an outer layer fused ...	09/04/2008
20080128040	Leadthrough A leadthrough for passing conduits through constructional components includes a thread-forming thread (13) provided on an outer circumference (12) of a jacket tube (11) and extending from a first axial end region (15) toward a second axial en...	06/05/2008
20080041483	Duct and method of construction A flexible duct construction and method of manufacture is provided in which the duct is formed from a continuously wound elongate member comprising a core of insulating material, a reinforcing wire element and a casing comprising a strip of substrate material extending ...	02/21/2008
20080035229	BREATHING AIR HOSE AND METHOD OF MAKING SAME A method of manufacturing a wire-reinforced flexible rubber hose that is particularly suitable for use in breathing air applications. The method includes positioning a section of wire-reinforced tubing on a forming mandrel and then positioning a sleeve of uncured rubber...	02/14/2008
20080017265	Corrugated flexible pipe with a built-in electric cable A flexible corrugated pipe, of a type comprising a plurality of overlapping material layers, comprises at least a coiled wire, and at least an electric cable, the coils or turns of said at least a wire and said at least an electric cable being arranged on a same plane, ...	01/24/2008
20070256751	Corrugated Pipe Made of Thermoplastic Plastic The present disclosure relates to a corrugated pipe made of thermoplastic plastic, which includes an inner pipe and a corrugated outer pipe connected thereto, wherein the profile of the outer pipe includes first sections with a first average diameter, second sections wi...	11/08/2007
20070220732	Flexible semi-rigid clothes dryer duct A semi-rigid, flexible, duct for gas transport and for clothes dryer exhaust transition, and a method for manufacture thereof, including a pair of coaxial sleeves, an inner sleeve and an outer sleeve disposed parallel to and about the inner sleeve, and a resilient helic...	09/27/2007
20070209729	Cable reinforcement for flexible ducts A flexible fire resistant duct constructed of a flexible fire resistant membrane forming a tube and reinforced with a metallic multi-strand cable. ...	09/13/2007
20070181203	Composite strip windable to form a helical pipe and method therefor A composite strip 10 windable to form a helical pipe is disclosed. The composite strip 10 comprises: an elongate plastic strip 11 having a base portion 12 and at least one lengthwise extending rib portion 20 upstanding from the base po...	08/09/2007
20070175533	Method and layering for convoluted hose An improved flexible hose is described. The flexible hose may have a helical wire core with at least one thermoplastic layer over the core forming the hose. The helical wire forms a plurality of peaks separated by adjacent valleys on the hose. The peaks have a protectiv...	08/02/2007
20070079885	Hose assembly The disclosure is directed to a hose assembly including a corrugated metal hose having an inner surface defining a lumen and an outer surface and a polymeric layer surrounding the outer surface of the corrugated metal hose. ...	04/12/2007

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Class 138/122 - Spirally