Abstract: An device and method for repairing the junction of a main pipe line and a lateral pipe. The device uses a series of independently controlled bladders to adjust the timing and pressure exerted by the bladders on the pipes. The device also uses a liner assembly of resin absorbent material is formed, with a tubular lateral liner connected to a concentric circular main liner. The liner also includes an opening to facilitate loading of the liner in the device. Upon loading the bladders and resin-embedded liner into a train, the device is positioned and the bladders independently inflated, either concurrently or in sequence, installing the liner assembly onto the pipe. Once the resin is cured, the bladder assembly and launcher are removed from the sewer pipe.

Abstract: Stretch-resistant liners for lining pipes, pipes lined with stretch-resistant liners, and methods for lining pipes with stretch-resistant liners. The liners are made from a lamination that includes a sealing layer, a strength layer of stretch-resistant woven material that overlies the sealing layer, a support layer of non-woven resin-impregnated material that overlies the strength layer, and a barrier layer that overlies the support layer. The lamination is rolled into a tube and inverted when inserted into a pipe so that the barrier layer is the layer that abuts the interior wall of the pipe, the support layer underlies the barrier layer, the strength layer underlies the support layer and the sealing layer underlies the strength layer is contacted by materials flowing through the pipe.

Abstract: A flexible support including a body configured to provide anatomical support to a user's appendage, and an insert extending along at least a portion of an edge of the flexible support to reduce irritation and fitment discomfort to the user's appendage from the edge.

Abstract: An apparatus that accelerates curing of resin in a liner for a buried pipe includes a lining assembly connected to a pressurized fluid source. One embodiment includes an inversion cap having an inversion port, a curing port and a drainage port. The apparatus also includes a manifold having an outlet, a first inlet in valved fluid communication with a heated fluid source, a second inlet in valved fluid communication with a pressurized fluid source and a third inlet in valved fluid communication with the drainage port. While heated fluid enters the first end of the assembly via the manifold, a release fitting which allows fluids to escape through the second end thereof.

Abstract: An apparatus and method that accelerates curing of resin in a liner for a buried pipe includes an air inversion unit connected to an air compressor. The apparatus include a curing cap having an inflation port, a curing port and a drainage port. A remote source of pressurized fluid is placed in fluid communication with the inflation port. The apparatus also includes a manifold having an outlet, a first inlet in valved fluid communication with a heated fluid source, a second inlet in valved fluid communication with a pressurized fluid source and a third inlet in valved fluid communication with the drainage port. A flexible tube is slidably received by the curing port while maintaining a substantially fluid-tight seal. The flexible tube has a first end in fluid communication with the outlet of the manifold and the second end has a substantially spherical guide thereon. The second end of the flexible tube also includes a plurality of perforations to allow fluids to pass there through.

Abstract: Stretch-resistant liners for lining pipes, pipes lined with stretch-resistant liners, and methods for lining pipes with stretch-resistant liners. The liners are made from a lamination that includes a sealing layer, a strength layer of stretch-resistant woven material that overlies the sealing layer, a support layer of non-woven resin-impregnated material that overlies the strength layer, and a barrier layer that overlies the support layer. The lamination is rolled into a tube and inverted when inserted into a pipe so that the barrier layer is the layer that abuts the interior wall of the pipe, the support layer underlies the barrier layer, the strength layer underlies the support layer and the sealing layer underlies the strength layer is contacted by materials flowing through the pipe.

Abstract: A degassing and water removal apparatus is used in combination with the testing or replacement of dielectric oil in an RF transmitter. The apparatus comprises at least one ultrasound transducer in vibrational communication with a bulk oil sample held in a tank having a reduced internal air pressure. The tank has fluid connections to the RF transmitter through which oil from the transmitter is drained to the tank and through which the ambient air pressure in the transmitter is reduced. A fluid pump is used to pump the oil from the tank back to the RF transmitter. In a method of using such an apparatus, the RF transmitter is held at reduced internal pressure during the return of oil thereto, so that the oil does not dissolve gases in the atmosphere internal to the RF transmitter.

Abstract: A degassing and water removal apparatus is used in combination with the testing or replacement of dielectric oil in an RF transmitter. The apparatus comprises at least one ultrasound transducer in vibrational communication with a bulk oil sample held in a tank having a reduced internal air pressure. The tank has fluid connections to the RF transmitter through which oil from the transmitter is drained to the tank and through which the ambient air pressure in the transmitter is reduced. A fluid pump is used to pump the oil from the tank back to the RF transmitter. In a method of using such an apparatus, the RF transmitter is held at reduced internal pressure during the return of oil thereto, so that the oil does not dissolve gases in the atmosphere internal to the RF transmitter.

Abstract: A core rod is utilized in the process of forming a core in a metal casting. The core rod has a length and opposite ends. The core rod is generally round in cross-section along at least a portion of the length of the core rod proximate at least one of the ends configured for use in forming the core of the metal casting. The core rod is made from a precipitation-hardenable alloy including about 40.0 to 75.0 wt. % Ni, about 0.0 to 25.0 wt. % Co, about 10.0 to 25.0 wt. % Cr, and about 0.0 to 20.0 wt. % Fe. A method for forming a core within a metal casting includes the steps of providing a precipitation-hardenable alloy core rod having a length and opposite ends; packing sand around at least one end of the core rod to form a sand core with core rod; placing the sand core with core rod into a mold; pouring molten metal into the mold and around the sand core with core rod; and producing a metal casting having a core and a uniform sidewall thickness in a range of +/?0.060 inches.

Abstract: A core rod is utilized in the process of forming a core in a metal casting. The core rod has a length and opposite ends. The core rod is generally round in cross-section along at least a portion of the length of the core rod proximate at least one of the ends configured for use in forming the core of the metal casting. The core rod is made from a precipitation-hardenable alloy including about 40.0 to 75.0 wt. % Ni, about 0.0 to 25.0 wt. % Co, about 10.0 to 25.0 wt. % Cr, and about 0.0 to 20.0 wt. % Fe. A method for forming a core within a metal casting includes the steps of providing a precipitation-hardenable alloy core rod having a length and opposite ends; packing sand around at least one end of the core rod to form a sand core with core rod; placing the sand core with core rod into a mold; pouring molten metal into the mold and around the sand core with core rod; and producing a metal casting having a core and a uniform sidewall thickness in a range of +/?0.060 inches.

Abstract: A core rod is utilized in the process of forming a core in a metal casting. The core rod has a length and opposite ends The core rod is generally round in cross-section along at least a portion of the length of the core rod proximate at least one of the ends configured for use in forming the core of the metal casting. The core rod is made from a precipitation-hardenable alloy including about 40.0 to 75.0 wt. % Ni, about 0.0 to 25.0 wt. % Co, about 10.0 to 25.0 wt. % Cr, and about 0.0 to 20.0 wt. % Fe. A method for forming a core within a metal casting includes the steps of providing a precipitation-hardenable alloy core rod having a length and opposite ends; packing sand around at least one end of the core rod to form a sand core with core rod; placing the sand core with core rod into a mold; pouring molten metal into the mold and around the sand core with core rod; and producing a metal casting having a core and a uniform sidewall thickness in a range of +/?0.060 inches.

Abstract: A polymer composition for making products having a controlled lifetime in an outdoor environment before degrading in a controlled way, comprises a hydrocarbon polymer that can biodegrade by an oxidative mechanism, and an antioxidant and a prooxidant that are soluble in the polymer. The antioxidant comprises a zinc, calcium or magnesium complex of a liquid containing one or more sulphur compounds attached to the metal ion, such as complexes of mercaptobenzothiazoles, mercaptobenzimidazoles, dithiophosphates and dithiocarbamates acid. The proxidant comprises a transition metal compound that is a carboxylate or an oxygen or nitrogen coordinated complex. The polymer compositions are particularly useful for making films, for example for agricultural or outdoor packaging purposes.

Abstract: A polymer composition for making products having a controlled lifetime in an outdoor environment before degrading in a controlled way, comprises a hydrocarbon polymer that can biodegrade by an oxidative mechanism, and an antioxidant and a prooxidant that are soluble in the polymer. The antioxidant comprises a zinc, calcium or magnesium complex of a liquid containing one or more sulphur compounds attached to the metal ion, such as complexes of mercaptobenzothiazoles, mercaptobenzimidazoles, dithiophosphates and dithiocarbamates acid. The proxidant comprises a transition metal compound that is a carboxylate or an oxygen or nitrogen coordinated complex. The polymer compositions are particularly useful for making films, for example for agricultural or outdoor packaging purposes.

Abstract: A core rod is utilized in the process of forming a core in a metal casting. The core rod has a length and opposite ends The core rod is generally round in cross-section along at least a portion of the length of the core rod proximate at least one of the ends configured for use in forming the core of the metal casting. The core rod is made from a precipitation-hardenable alloy including about 40.0 to 75.0 wt. % Ni, about 0.0 to 25.0 wt. % Co, about 10.0 to 25.0 wt. % Cr, and about 0.0 to 20.0 wt. % Fe. A method for forming a core within a metal casting includes the steps of providing a precipitation-hardenable alloy core rod having a length and opposite ends; packing sand around at least one end of the core rod to form a sand core with core rod; placing the sand core with core rod into a mold; pouring molten metal into the mold and around the sand core with core rod; and producing a metal casting having a core and a uniform sidewall thickness in a range of ±0.060 inches.

Abstract: Systems and methods for implementing a memory-efficient fault tolerant computing system are provided. A generic backup process may provide fault tolerance to multiple working processes. The backup process need not include a copy of the code segments executed by the working processes, providing very large savings in memory needed to implement the fault tolerant system. Alternatively, multiple backup processes provide fault tolerance but need not include duplicated code segments for the working processes they support.

Abstract: An electrophotographic printing machine having a latent image is recorded on a photoconductive member with the latent image being developed with marking particles, includes: imager for recording a test patch consisting of a solid patch; developer for developing the test patch with marking particles wherein the developed patch has a solid portion and an edge portion; sensor for measuring a density of the solid portion of the test patch; sensor for measuring a density of the edge portion of the test patch; a system for generating a first output signal corresponding to the density of the solid portion of the test patch; and a system for generating a second output signal corresponding to the density of the edge portion of the test patch.

Abstract: An electrophotographic printing machine having a latent image is recorded on a photoconductive member with the latent image being developed with marking particles, includes: means for recording a test patch consisting of a solid patch; means for developing the test patch with marking particles wherein the developed patch has a solid portion and an edge portion; means for measuring a density of the solid portion of the test patch; means for measuring a density of the edge portion of the test patch; means for generating a first output signal corresponding to the density of the solid portion of the test patch; and means for generating a second output signal corresponding to the density of the edge portion of the test patch.