Abstract: Liquid levels for controlled in systems that include different liquid bodies between which liquid circulates. Such bodies may typically include swimming pools and spas.

Abstract: Suction and germicidal spray producing apparatus effects rapid removal of soils and bacteria from hard surface floors in both dry and wet states, the removed dry and wet soils and bacteria being isolated and confined; the apparatus includes a head assembly carrying longitudinally spaced, resiliently flexible strips extending in parallel relation to engage the floor surface, the head assembly including support means to engage the floor surface; means is provided for applying suction to the space between the strips; and means is provided for applying cleaning liquid to the floor surface to wet that surface visibly and openly outside the space between the strips, so that the user moving the head assembly back and forth can controllably move the head and strips over the surface to assure suction removal of liquid, soils and bacteria on the floor surface, to be conducted away from the head assembly.

Abstract: Soils and bacteria are removed from a hard floor surface by providing two resiliently flexible, transversely parallel strips, applying suction to the space between the strips so that their lower edge portions engage the floor surface, bodily displacing the strips longitudinally back and forth, while applying disinfectant or cleaning liquid to the floor surface outside the space between the strips to wet that surface over which the strips are displaced and flex back and forth.

Abstract: A multi-ported backwash valve for a swimming pool and filter, comprises:(a) a valve rotor and a body having five ports communicating with the rotor, said ports including(i) a fluid inlet port,(ii) a first outlet port for fluid delivery to a container,(iii) a second outlet port for fluid delivery in a first selected path through filter means,(iv) a third outlet port for fluid delivery in a second selected path through filter means, and(v) a fourth outlet port for fluid delivery to discharge,(b) the rotor having an axis and the body having an internal wall, the inlet port located at the internal wall, the first, second, third and fourth ports spaced about said axis,(c) the rotor having a flow directing chamber to selectively place the inlet port in communication with the first through fourth ports, and other flow directing chamber structure to selectively and simultaneously intercommunicate pairs of the first through fourth ports.

Abstract: A wheel connection to a receptacle having a bottom wall and a bead projecting downwardly below the level of said bottom wall, comprises:(a) a wheel carrier adapted to extend at the outer side of the bead,(b) means on the carrier including an L-shaped bracket having a vertical leg, and an adjustable threaded fastener, for releasably retaining the bead between the vertical leg and the carrier, the bracket having an upper horizontal leg to extend in supporting relation directly beneath the receptacle bottom wall, and(c) the carrier defining a laterally presented shoulder for engagement with the outer side of the receptacle at a location above the level of the bracket and bead.

Abstract: An upright strainer basket for reception in a housing primary chamber having an upper fluid inlet port and a lower fluid outlet port. The basket has:A. exteriorly presented ribs that intersect to form perforations to pass fluid from the basket interior to the primary chamber outlet port,B. the basket having a side inlet located to register with the primary chamber inlet port,C. and said basket having a support flange extending above said side inlet to define a handle adapted to be grasped from the basket interior to remove the basket upwardly from the primary chamber.

Abstract: The environment of the invention comprises work degreasing apparatus wherein a tank contains liquid solvent to be vaporized by a heater for degreasing contact with work introduced into the tank, the vapor being subject to condensation, there also being a tank cover having open and closed positions. The inventive improvement comprises means responsive to closing of the cover to control the heater to reduce heat transfer to the liquid solvent, and also responsive to opening of the cover to control the heater to increase heat transfer to the liquid solvent.

Abstract: A noise suppressor package attachable to air exhaust tubing comprises:A. annular body means defining an axially extending bore to pass said exhaust, said body means including compressible foam segments which project radially inwardly at said bore, said segments being axially elongated and circularly spaced, andB. a tubular cover extending about said body means and having a flexible neck at one end of said body means, said neck being radially constrictable about said exhaust tubing to retain the package to the tubing.

Abstract: Composition for a clear blue colored, stabilized liquid peroxygen bleach, suitable for household laundry use on all fabrics, whose coloring dye is rendered non-substantive to natural or synthetic fibers by the inclusion of a non-ionic surfactant as an anti-dyeing agent having an HLB value within a predetermined range.

Abstract: Equipment for cleaning metal or plastic parts by immersion in a tank-contained agitated liquid cleaning solution in which the parts are loaded into open side cages mounted on a powered carrier wheel immersed in the solution and having interrupted rotation to carry the parts from a loading station at one side of the carrier above the solution downwardly therethrough and upwardly to an unloading station at the opposite side of the carrier, the tops of the cages being slotted to accommodate mechanical displacement of the parts through the cages and the tank containing stationary barriers blocking movement of the parts through the open sides of the immersed cages.

Abstract: A solid product for rub-on application to stains and soil deposits on fabric preparatory to laundering, comprising blended water soluble non-ionic detergent and stable laundry enzyme uniformly dispersed therein, and the method of manufacturing the product.

Abstract: A flaw penetrant test panel having a sheet metal surface in which are impressed tiny or microscopic flaw simulating cavities distributed over the test surface to receive one or more penetrants being tested, the mouth size of the cavities being in the range of about 1 to 10 thousandth inch and being formed by heating the metal to incipient softening temperature followed by penetration of the surface test area using a needle-like tool proportioned to the desired cavity size and depth and which upon penetration of the metal displaces it in a crater-like rim about the cavity being formed.

Abstract: A valve having a valve body, a valve cavity, a first opening and a second opening with a valve member rotatably positioned within the valve cavity. The valve member may have a generally cylindrical hollow configuration with an end opening in alignment with the first opening, and a side opening with the valve member positioned for rotation to bring the side opening into or out of alignment with the second opening. A seal means is supported by the valve member in slidable contact with the valve cavity with the seal means enclosing the end opening and side opening of the valve member.The valve body may also include a valve member opening in alignment with the valve member. A removable closure member is positioned over the valve member opening. On removal of the closure member, the valve member may be removed from the valve cavity by withdrawing the valve member through the valve member opening.