Class 138/93 - Inflatable

Subclass of Class 138 - Pipes and tubular conduits
Definition: Plugs for pipes having an inflatable member to seal against
No. of applications: 26
Last issue date: 12/29/2011

Application No.	Application Title	Issue Date
20110315258	ACTIVE FLOW HIGH PRESSURE PIPE PLUG APPARATUS AND METHOD The invention herein presented involves two (2) alternative equipment and methods which could be used independently or together, depending on the application and means available to have them implemented, for plugging or stopping active flow of fluid from a damaged or br...	12/29/2011
20110011481	DEPLOYING A CHEMICALLY-INFLATABLE BAG WITH AN UNFURLING ACTION Embodiments provide an apparatus and methods for providing a nonlabor-intensive process for preventing backfill entering, or environmental factors eroding, a cavity formed in the ground. Preventing cavity degradation involves constructing a chemically-inflatable bag tha...	01/20/2011
20110000567	Packer for installing sealant in defective conduits A flexible inflatable packer for use in installation of a sealant such as grout in joints and defects in a conduit such as a sewer pipe, and a method for sealing defects in a conduit by use of such a packer. The packer can collapse to a slender configuration for movemen...	01/06/2011
20100263764	Spill curtailing tool The spill curtailing tool has an elongated expandable frame; a first handle on a first end of the frame; a second handle mounted to an intermediate position along the frame, and a tube mounted to a second end of the elongated frame. The second end of the frame supportin...	10/21/2010
20100236639	System And Method For Accessing A Pressurized Gas Pipeline A system and method for inhibiting gas release while accessing a pressurized gas pipeline includes a magnetic plug holder for magnetically engaging a pipe plug to a rod. A housing is sealingly engaged to a valve attached to the pipeline, and the rod is movable through t...	09/23/2010
20100152906	Inflatable Fluid Conduit Plug An inflatable conduit plug is used to seal a conduit such as a floor drain or an air vent. The conduit plug includes a shroud that is removably sealed within the conduit so that fluids pass through the shroud opening. Axially disposed within the shroud is an inflatable ...	06/17/2010
20100089477	Plug for Sealed Closing of a Pipe A plug for the sealed closing of a pipe is provided. The plug comprises a sleeve and a cylindrical main body having a connection for a pressure line. The sleeve is coupled to the cylindrical main body so that the sleeve and the cylindrical main body form an outwardly se...	04/15/2010
20090199922	Plugging Device and Method A plugging device (1) includes a bladder (2) which is adapted to expand or contract upon the ingress or egress of a fluid, such as air or other type of gas or liquid. Bladder (2) can be provided in a variety of sizes to suit a diameter or cross-sect...	08/13/2009
20090126818	Apparatus for instantaneously terminating movement of flow material through a conduit An apparatus for rapidly terminating of the flow of any fluid or particulate material through a conduit responsive to predefined dangerous conditions. A particular application will terminate fuel flow through a large fuel supply conduit in a racing vehicle responsive to...	05/21/2009
20090126436	TUBULAR EXPANSION DEVICE AND METHOD OF FABRICATION The invention comprises a device for expanding tubular members to a controlled diameter and its method of fabrication. The device includes an expandable bladder held in a convoluted form. After the device is inserted into a cylindrical tube to be evenly expanded, the bl...	05/21/2009
20090114302	Double Block and Bleed Plug A pipe plug includes two or more pivotally connected plugging heads that work in combination to double block and bleed a pipe. At least one of the plugging heads has an expandable sealing element that is in communication with an inflation source. The sealing element may...	05/07/2009
20090090430	Apparatus and method for controlling the filling and emptying of a fluid container An apparatus and method for emptying and filling a fluid container. A flow-actuated valve inside a fill tube regulates the flow through the fill tube. A cap containing the valve and a vent tube can be installed on a modified bottle used to supply water dispensers, thus ...	04/09/2009
20090050224	INFLATABLE PLUG WITH FLANGE A system for restricting fluid flow through a conduit comprises a tapping saddle configured to couple to the conduit adjacent to an opening in the conduit, a valve coupled to the tapping saddle to allow selective access through the tapping saddle and the opening to an i...	02/26/2009
20080295911	Hose inflation adapter kit The invention provides a unique, compact tool to be used in conjunction with preexisting hoses of any type, construction, size or style whatsoever and inflating said hose or hoses in a safe universal manor with universal gas delivery devices using an appropriate adaptiv...	12/04/2008
20080163951	INFLATABLE PLUG WITH FLANGE An inflatable plug insertable into a conduit and inflatable therein to restrict fluid flow comprises a bladder having an interior surface and an exterior surface and at least one fabric layer covering at least a portion of the exterior surface of the bladder. The inflat...	07/10/2008
20080163941	IN-LINE SWIVEL FOR INFLATABLE PLUGS An in-line swivel having a through bore for fluid flow therethrough. In one embodiment, the swivel comprises an inlet member having a first longitudinal axis and an outlet member having a second longitudinal axis. The outlet member is configured to rotate relative to th...	07/10/2008
20080072981	Testing System for Plumbing Leaks A system for testing plumbing includes a flexible plug for sealing or unsealing the plumbing, an outer container for connecting to an access line to the plumbing system; a flexible air line connected to the flexible plug. The testing system is sealed when the flexible p...	03/27/2008
20070284011	METHODS FOR SEALING AND ISOLATING PIPELINES A method of performing a servicing operation within a pipeline comprises positioning a swellable component about at a desired location within a pipeline, exposing the swellable component to a swelling agent within the pipeline, expanding the swellable component into sea...	12/13/2007
20070246115	Blocking Assembly There is a need for people who handle hazardous materials to be able to effectively and efficiently block cesspits and/or pipes of various drainage systems in circumstances of for example, a chemical or liquid spill or a gas leak so as to prevent or limit flow of the sa...	10/25/2007
20060130923	Method and apparatus for spot repair of pipe The invention comprises an in situ pipe repair device and method for placement, transport and installation of a pipe repair material onto the interior pipe surface. The invention comprises a fluid inflatable bladder with at least one electrical heating component compris...	06/22/2006
20060027276	Seamless inflatable bag with multiple applications A seamless inflatable bag is made with two layers, namely an outer layer made of a woven material such as from p-aramid and an inner gas proof layer. The outer edges of the layers are brought together around a tube and secured in place by a sleeve that is crimped in pla...	02/09/2006
20050279417	Internal pipe repair method and device A device and method for internally repairing pipes. The device consists of a reusable, elastomeric shell configurable for two, three, and four-pipe junctions. The design of the device aids in positioning the expandable shell over and helps seal off the leak area inside ...	12/22/2005
20050257846	Method and apparatus for abandoning a sewer pipe using a cured in place sewer plug The present invention provide a method for abandoning a sewer pipe, such as an abandoned lateral line that employs an inflatable sewer plug impregnated with resin which is either pushed into place or pulled into place, frequently in a lateral sewer line, inflated and al...	11/24/2005
20050229985	Inflatable, flexible device for use as an expandable closure device, and a method of producing said device An inflatable, flexible device (10) for use as an expandable closure device comprises an inlet part (14) of a substantially tubular configuration, an expandable bag part (12) integrally connected to the inlet part and made from a highly flexible and...	10/20/2005
20050189027	Plumbing test plug and method An improved screw in test plug covering the opening of a test plug opening adapted to removably secure inflatable test balls thereto for inflation therein for water column pressure testing, and deflation for release of the water before removal of the test plug and test ...	09/01/2005
20050016607	Bladder system for conduit expansion Disclosed is a bladder system for use in conjunction with a conduit expansion process and system. In addition, the bladder system is in operative communication with an injection material handling system. The bladder system includes a bladder element with injection hardw...	01/27/2005

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Class 138/93 - Inflatable