Class 138/111 - PLURAL DUCT

Subclass of Class 138 - Pipes and tubular conduits
Definition: Device having a plurality of unconnected passageways extending
No. of applications: 29
Last issue date: 05/24/2012

Application No.	Application Title	Issue Date
20120125468	MARKED HONEYCOMB STRUCTURE The invention relates to a honeycomb structure including a set of adjacent channels, each channel being in communication with upstream and downstream surfaces, respectively, via upstream and downstream openings, such that said set of channels forms cross-sectional upstr...	05/24/2012
20110247713	LUBRICATING FAST SETTING EPOXY COMPOSITION A composition for a lubricating fast-setting epoxy compound comprising substantially equal amounts of an epoxy base and an epoxy accelerator. The epoxy base comprises: a first micro-crystalline filler, a first talc, a hardenable epoxide containing liquid; and a titanium...	10/13/2011
20110232795	GEOTHERMAL PIPE SYSTEM A pipe is provided for use in a geothermal heat exchange system. The pipe is insertable in a bore hole having a proximal end disposed relatively closer to a surface of the earth, and a distal end disposed relatively further from the surface of the earth. The pipe compri...	09/29/2011
20110203765	Multipipe conduit for geothermal heating and cooling systems The present invention relates to a conduit for use in a geothermal heating and cooling system wherein said conduit comprises 5 or more pipes, wherein further, said 5 or more pipes comprising said conduit are arranged to be contiguous, arranged to be separated by a spaci...	08/25/2011
20110180172	HIGH PRESSURE, HIGH FLOW RATE TUBING ASSEMBLY FOR A POSITIVE DISPLACEMENT PUMP A tubing assembly is provided that can comprise a plurality of tubes or lumens that can be disposed within a head of a peristaltic pump. The tubing assembly can provide a flow rate or volume capacity that is generally equal to or greater than that achieved with a compar...	07/28/2011
20110180173	Tapping Channel for Draining Iron and Metal Melts and Liquid Slags from Metallurgical Containers Such as Blast Furnaces and Melt Furnaces The invention relates to a tapping channel (1) for draining iron and metal melts and liquid slags from metallurgical containers such as blast furnaces (2) and melt furnaces. The tapping channel (1) is formed by an outer pipe (3) and an inner ...	07/28/2011
20110146827	HIGHLY-DURABLE TUBE USABLE FOR MOVEMENT UNIT FOR ROTATION, FLEXION, AND THE LIKE AND METHOD FOR PRODUCING THE SAME This invention provides a tube having durability against harsh flexion, shrinkage, torsion, or the like and reduced slip resistance between tubes or upon contact with another member. Such tube is used for a product comprising a site at which a plurality of tubes are fix...	06/23/2011
20110113704	WATER-RESISTANT APPARATUSES FOR PHOTOVOLTAIC MODULES A water-resistant apparatus is provided. This water-resistant apparatus is positioned near a photovoltaic module. The water-resistant apparatus includes hollow, elongated conduits, and each conduit can hold water with surface tension based on exposure of the conduit to ...	05/19/2011
20110056580	Climate Tube, Particularly For Airplanes The invention relates to a climate tube (10), in particular for aircraft, having an inner layer (12) and an outer layer (16) of fiber composite plastic material. To achieve a high stiffness combined with a low weight and to achieve good thermal insu...	03/10/2011
20110041942	Method for the production of concrete pipes and concrete pipe system The invention relates to a method for the production of concrete pipes, particularly for wastewater lines, having a plastic inner pipe, wherein the concrete part is manufactured in a horizontal position in order to simplify the production process and reduce the costs th...	02/24/2011
20100320291	CLOSED CAPILLARY WATER DISTRIBUTION SYSTEM FOR PLANTERS A system for transporting water from a water reservoir in lower position to planters for watering plants therein includes a conduit having one end immersed in the water reservoir and the other end closed or connected to a pressured water source, the conduit running thro...	12/23/2010
20100296870	SUBIRRIGATION SYSTEM A subirrigation system 10 includes a water-impervious member 16, and keeps water content in soil of a cultivated land 200 in a proper state for growing a plant. The water-impervious member 16 is formed into an upper opening vessel shape, and ...	11/25/2010
20100170590	MANUFACTURING A PIPING ELEMENT, AND PIPING ELEMENT A piping element (1) comprises at least one flow pipe (4), an insulator (3) arranged outside it and a corrugated outer sheath (2) arranged outside the insulator (3) in such a way that the piping element (1) is bendable in its en...	07/08/2010
20100116212	TUBE ARRANGEMENT A tube arrangement arrangement includes a first tubular element (18) having an inner channel (19) adapted to transport milk and a second tubular element (20) having two inner channels (21a, b) adapted to transport air with a pulsating ...	05/13/2010
20100095474	HOSE FOR A SURFACE TREATING APPLIANCE A vacuum cleaner has a hose and wand assembly, onto which a floor tool may be attached. Power and signals are transmitted down electrical conductors in the hose. In order to permit free movement of the hose, the hose is divided into portions having a joint therebetween....	04/22/2010
20100043904	UNIFIED CONDUIT ARRAY A conduit array configured to route in-floor tubing includes a plurality of elbow conduits. A webbing is positioned between each of the elbow conduits in the plurality of elbow conduits to connect the plurality of elbow conduits. The webbing is configured to allow for s...	02/25/2010
20100006545	Welding of Pipeline to Enhance Strain Performance A method and apparatus utilized in forming weld joint is described. In the method, a strength weld between two members is formed by a first welding process and a first weld metal. Then, one or more strain welds are formed by depositing a second weld metal adjacent to th...	01/14/2010
20090223584	Safety and indicator apparatus systems and methods for high pressure conduits A pressure-relieving safety assembly, comprising a sleeve and collar, protects against human injury and loss of life by blocking flow of fluid from a ruptured high pressure conduit and provides pressure relief for escaping fluid. This pressure-relieving assembly include...	09/10/2009
20090050225	System for Piping Under Roadways What is disclosed is an improved system for gas piping under roadways using polyethylene pipe (2) as a casing pipe around an inner carrier pipe (1), along with a method for testing airtightness. A conduit (10) for the tracer wire (9) is inclu...	02/26/2009
20080308169	Fluid Line and Method for Manufacturing a Fluid Line A method for producing a fluid line (2) and a corresponding fluid line (2) are specified, wherein a number of tubes are wound in parallel along a helical line in each case, a connecting element (6, 7) is fastened to at least one end and the tubes ar...	12/18/2008
20080264508	MINE BLENDER HOSE A flexible hose construction adapted for separately conveying two or more fluids therethrough. The construction includes a core tube, a second tube helically disposed about the core tube, and a tubular jacket surrounding the core tube. The second tube may be substantial...	10/30/2008
20080196941	Metal Raceway System The present invention is directed towards a metal raceway system. The metal raceway system includes a metal raceway and a coupling fitting. The metal raceway snaps onto the coupling fitting to mount the metal raceway to the fitting. The metal raceway has a channel defin...	08/21/2008
20080030023	Compound tube and method of producing the same A compound tube is disclosed that includes an outer tube and an inner tube disposed in the outer tube. A passage is defined between the outer tube and the inner tube. Various methods of joining the outer tube to the inner tube are disclosed. ...	02/07/2008
20070113911	Multi-lumen miniature ribbon tubing A multi-lumen miniature ribbon tube is generally flat in overall shape, and includes a number of generally parallel, longitudinal lumens arranged sequentially. Each lumen includes a tubular polymer sidewall defining a separate longitudinal fluid passageway. (Here, “lu...	05/24/2007
20070000550	Flexible multiple tubing that resists collapsing and kinking A flexible larger outer tube (1) with inserted smaller flexible multiple inner tubes (3) for transfer of liquids or gasses. The assembly of smaller tubs located in larger tube allow for the liquid or gasses to be transfer ins...	01/04/2007
20060236979	Line system for fluids having volatile components A line system (1) for fluids having volatile components, which comprises at least one fluid line (2,3,4), each having a separate inlet (10) and outlet (11), the fluid lines (2,3,4) being enclosed by a first line wall (12) and ex...	10/26/2006
20060213566	VACUUM INSULATED EXHAUST SYSTEM A double-walled exhaust pipe is used with an internal combustion engine and includes a first elongate outer tube and a second elongate inner tube positioned concentrically within the outer tube and affixed at the ends. A chamber is created between the inner and outer tu...	09/28/2006
20060032545	Pythons A liquid-conducting python has a plurality of liquid-conducting tubes surrounded by foam insulation. At least a portion of the outer surface of the foam insulation is patterned to form a segmented surface. ...	02/16/2006
20050067034	Fluid conduit The present invention relates to fluid conduit (1) suitable for use in the transportation of working fluids to a wellhead or the like from a topside location or the like. The fluid conduit (1) is suitable for use in a multi-conduit umbilical. The conduit c...	03/31/2005

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Class 138/111 - PLURAL DUCT