Abstract:
A method of delivering electrical therapy to a patient by a medical device includes activating the medical device and performing a first analysis of a first set of data signals sensed by the medical device. If the first analysis shows the first set of data signals meets a first criterion, then charging of an energy delivery circuit is commenced circuit upon completion of the first analysis. A second analysis of a second set of data signals from the patient is performed, and if the second analysis determines that the second set of data signals meet a second criterion, the therapy is delivered. The steps of performing the first analysis and performing the second analysis may be begun at substantially the same time. The step of charging may overlap in time with the step of performing a second analysis. The medical device may be an external defibrillator and the therapy may be a defibrillating shock.
Abstract:
An aqueous, viscoelastic treating fluid gelled with a crosslinked guar or guar derivative is stabilized and improved with an effective amount of a glycol, such as ethylene glycol. These fluids are more stable in that viscosity is maintained, particularly at elevated temperatures. The additives may also increase viscosity to the point where less of a crosslinked guar or guar derivative gelling agent is required to maintain a given viscosity. These stabilized, enhanced, aqueous, viscoelastic fluids may be used as treatment fluids for subterranean hydrocarbon formations, such as in hydraulic fracturing.
Abstract:
An aqueous, viscoelastic fluid gelled with a viscoelastic surfactant (VES) is stabilized and improved with an effective amount of an alkali earth metal oxide and/or alkali earth metal hydroxide. These fluids are more stable and have reduced or no tendency to precipitate, particularly at elevated temperatures. The additives may also increase viscosity to the point where less VES is required to maintain a given viscosity. These stabilized, enhanced, aqueous viscoelastic fluids may be used as treatment fluids for subterranean hydrocarbon formations, such as in hydraulic fracturing.
Abstract:
A gas burner for a fireplace. The burner comprises a burner housing having a grid of openings that are formed from heat resistant material. The housing has a first burner assembly and a second burner assembly arranged therein in a side-by-side relationship, each burner assembly having a chamber with a perforated gas distribution plate. The gas distribution plate is located adjacent the grid. Each of the burner assemblies has a gas mixing area with an inlet for primary air and combustible gas, and air flow controllers e.g. primary air shutters, for controlling the ratio of primary air to gas in the first burner assembly lower than the ratio in the second burner assembly.
Abstract:
A process for preparing optical fiber cladding solutions starting with a monomer having the formulaCH.sub.2 .dbd.C(R)COOCHXYwhereR is H or methyl;X is H or CF.sub.3,Y is H or CF.sub.3 provided that when X is H, Y is --CF.sub.3, --CF(CF.sub.3)OCF.sub.2 CF(CF.sub.3)OC.sub.4 F.sub.9 or --(CF.sub.2).sub.n Z,Z is F or H; andn is 1 to 8.The monomers are subjected to UV light at about 1-400 nm for one to four hours until a cladding solution of desired viscosity is obtained.
Abstract:
A method of preparing antimicrobial material sheets suitable for manufacturing a wide range of products having antimicrobial properties. In exemplary embodiments, a fabric having antimicrobial agents may be calendered with a polymer such as a silicone compound or an elastomer, in order to create a fused material sheet that contains the antibacterial properties of the fabric. In exemplary embodiments, the antimicrobial agent is copper, a copper alloy, silver, a silver alloy, or other suitable antimicrobial agent from which a fabric may be created. In some exemplary embodiments, an uncured silicone composition and copper alloy fabric are calendered to obtain an antimicrobial material sheet suitable for compression molding a wide range of products. In some exemplary embodiments, an uncured silicone composition and copper alloy fabric are calendered and roto-cured to obtain a cured antimicrobial material sheet or sheet rolls that maybe suitable for die-cutting.
Abstract:
A method of preparing antimicrobial material sheets suitable for manufacturing a wide range of products having antimicrobial properties. In exemplary embodiments, a fabric having antimicrobial agents may be calendered with a polymer such as a silicone compound or an elastomer, in order to create a fused material sheet that contains the antibacterial properties of the fabric. In exemplary embodiments, the antimicrobial agent is copper, a copper alloy, silver, a silver alloy, or other suitable antimicrobial agent from which a fabric may be created. In some exemplary embodiments, an uncured silicone composition and copper alloy fabric are calendered to obtain an antimicrobial material sheet suitable for compression molding a wide range of products. In some exemplary embodiments, an uncured silicone composition and copper alloy fabric are calendered and roto-cured to obtain a cured antimicrobial material sheet or sheet rolls that maybe suitable for die-cutting.
Abstract:
A flexible member (114) for supporting a glove in a manner whereby it can be readily donned by a user without touching the exterior of the glove. The flexible member (114) having a substantially planar glove support portion (122) which, when viewed in plan, conforms to the shape of at least part of the interior of a glove and is fittable, in use, to the interior of a glove through the cuff aperture thereof, and an attachment portion (112) by which the flexible member (114) can be held to facilitate donning of a glove and the subsequent removal of the glove support portion (122) from the cuff aperture of a glove while the glove is worn by a user. The glove support portion (122) is of sufficient flexibility to deflect around the hand of a user as said hand is inserted into a glove supported by the glove support portion (122), and further to deflect around the wrist of a user as the glove support portion (122) is removed from the glove through the cuff aperture thereof.
Abstract:
An electrically conductive protective coating or film is provided over the surface of a reflective coating of a solar mirror by flowing or directing a cation containing liquid and an anion containing liquid onto the conductive surface. The cation and the anion containing liquids are spaced from, and preferably out of contact with one another on the surface of the reflective coating as an electric current is moved through the anion containing liquid, the conductive surface between the liquids and the cation containing liquid to coat the conductive surface with the electrically conductive coating.