Abstract: A product and process for imparting stain and water repellency to fabric, wherein a heat-curable resin which has the property of imparting stain and water repellency to fabric when applied in proper amount to the fabric and cured, and that can be dispensed as an aerosol, is mixed in suitable proportion with a diluent and placed in an aerosol container along with a suitable propellant. The composition is then sprayed onto the fabric until the fabric is wet. The concentration of the resin in the composition is such that when the fabric is wet with the composition, an appropriate amount of the resin is on the fabric to impart stain and water repellency to it when the fabric is dried and the resin cured. Curing of the resin can be accomplished by ironing the fabric, or by drying the fabric in a clothes dryer at normal settings. A gaseous propellant is used to pressurize and discharge the composition, and a reserve supply of gaseous propellant is stored on a gas adsorbent material placed in the container.

Abstract: A medical device for treatment of a stenosed body lumen, includes an open-ended cylindrical body carried on a distal end of a catheter for insertion of the device into the body lumen and placement at the stenosed site. The cylindrical body is movable between a collapsed position for insertion into the body lumen, and a radially expanded position pressed against the wall of the body lumen. In one embodiment the body sidewall is formed by a plurality of interconnected struts or elements defining openings therebetween, and at least one elongate ribbon is attached to an outer surface thereof for carrying a therapeutic agent. In another embodiment, the body is formed of interwoven elements defining a mesh-like structure, and the elements may comprise dissimilar materials, such as, e.g., copper and silver. In a further embodiment the body is formed of layers of different materials such as, e.g., copper, silver, and/or steel, laminated together.

Abstract: A gas storage and delivery system for restoring pressure as it is depleted from a pressurized container, includes a container holding a product under pressure to be dispensed from the container, a quantity of gaseous material under pressure, occupying a space in the container and applying to the product a predetermined pressure of from about 30 to about 180 psig, and a quantity of gas-adsorbing material, storing under pressure a quantity of the gaseous material and releasing it into the container in response to a decrease in pressure in the container, thereby restoring and maintaining a predetermined pressure in the container as product is depleted from the container, wherein the gas-adsorbing material is wetted with a release-promoting agent to promote release of the sorbed gas from the gas-adsorbent material. A process of filling the container is also disclosed.

Abstract: A gas adsorption material containing a desired quantity of gas is placed in a pressurized container along with a product to be dispensed, and as pressure in the container is depleted during use, stored gas is released into the container to maintain pressure in the container within a predetermined range. The material may be in contact with the product, or it may be isolated from the product, and is known as a pressure swing adsorption (PSA) system, wherein adsorption of gas into the material occurs at a high pressure, and desorption of gas from the material occurs at a low pressure. Such devices are capable of storing under pressure a volume of gas 18 to 20 times the volume of the material. A preferred adsorbent gas storage material is granular activated carbon, or a carbon fiber composite molecular sieve (CFCMS).

Abstract: A device for extinguishing a candle flame, in which a small quantity of water is discharged under pressure as an aerosolized, conically shaped, filled spray of small water droplets directed against the flame to extinguish it and prevent burning and smoking of the wick of the candle. The quantity of water discharged in each dispensing cycle is only up to about 1 ml, and preferably no more than about 0.50 ml in finger pumps, with 0.080 ml being the preferred quantity. The water droplets have a size ranging from about one micron to about one thousand microns, distributed over a steep bell curve, and in a preferred embodiment average only about sixty-five to seventy microns. The device can be a finger pump, or a trigger-actuated dispenser, or a pressurized aerosol dispenser, in which the water is discharged through an orifice having a diameter of only 0.10 to 0.25 inch. Carbon dioxide can be used as a propellant gas, and can be discharged with the water to facilitate extinguishment of the flame.

Abstract: An improved aerosol formulation for activating a smoke detector by emulating the effects of combustion products to test smoke detectors includes a propellant and an active ingredient consisting of phenyl trimethicone. An alcohol may be included for diluting the phenyl trimethicone to modify the aerosol particle size.