Abstract:
A self-cleaning filter with a bypass port is provided for a washing machine that recirculates water back to the wash tub. The filter includes a housing with a filter element disposed therein. The filter element normally filters lint and other material from the water drained from the wash tub, with the water then being recirculated back to the wash tub. When the filter element becomes clogged, the water automatically flows through a bypass port in the filter, such that recirculation continues. The filter element is automatically cleaned by back-washing the filter.
Abstract:
This invention provides an air freshener dispenser device with a nonporous wicking feature, which consists of (a) a first container with an upside open end, and a downside closed end with a sharp piercing structure extending up from the interior bottom surface, (b) a second container which is inverted and internally-nested within the first container, with an upside closed end comprising a vapor-emanating means, and a downside end which is sealed with an impermeable membrane, and (c) a reservoir of liquid air freshener medium enclosed within the second container. The coextensive sidewalls of the two containers are in a capillary spacing proximity. For activation of the dispenser device into an operational mode, the second container is adjusted until the impermeable membrane is breached by the sharp-structure at the bottom of the first container. The released air freshener medium is transported by capillary action to the vapor-emanating surface for evaporation into the atmosphere.
Abstract:
An osmotic device that, following the imbibition water vapor, provides for the controlled release of a beneficial agent to a non-aqueous environment. The device comprises a hydrophilic formulation and a beneficial agent, surrounded by a wall. The wall is formed at least in part of a semipermeable hydrophobic microporous membrane having an average pores size between about 0.1 .mu.m and 30 .mu.m. The pores are substantially filled with a gas phase. The hydrophobic membrane is permeable to water in the vapor phase and the hydrophobic membrane is impermeable to an aqueous medium at a pressure less than about 100 Pa. The beneficial agent is released, for example, by osmotic pumping or osmotic bursting upon imbibition of sufficient water vapor into the hydrophilic formulation. The high water fluxes attendant with these vapor-permeable hydrophobic membranes facilitate the delivery of large quantities of beneficial agents without requiring large surface areas (quantities) of hydrophobic microporous membrane. In addition, use of vapor-permeable hydrophobic microporous membranes allow osmotic devices to be used in environments having limited water availability, such as air or soil.
Abstract:
A furniture polish concentrate is disclosed. Also disclosed is a furniture polish composition formulated from such a concentrate. The furniture polish concentrate comprises dimethyl silicone and a poly-(dimethyl)-copoly(methyl, oxygen-containing) siloxane copolymer, structurally depicted as ##STR1## wherein "A.sub.1 " is Si--(--CH.sub.3).sub.3 ; wherein "A.sub.2 " is O--Si--(--CH.sub.3).sub.3 ; wherein "B" is (CH.sub.2).sub.i (M).sub.j (L)(CH.sub.2 CH.sub.2 O).sub.n R; wherein "i" is either 0 or an integer value of 3 to 8 inclusive; wherein "j" is either 1 when "i" is 0 or is 0 when "i" is 3 to 8 inclusive; wherein "M" is ##STR2## wherein "L" is either --O-- or is --COO--; wherein "n" is either 0 or is an integer value of 1 to 3 inclusive; wherein "R" is either --H, CH.sub.3, or --C.sub.2 H.sub.5 ; wherein "y" is about 18 to about 60 mole percent; and wherein the sum of "A.sub.1 ", "A.sub.2 ", "y" and "z" is 100 mole percent.