Abstract: In a nozzle dam assembly wherein a flange ring is affixed around a circular nozzle opening in a chamber wall, a support frame spans and is in non-threaded connection with the ring by releasable pins which carry under tension any load on the frame directed axially out of the nozzle into the chamber, and a circular dam with a sealing diaphragm disposed over it is attachable to the frame with its rim within the nozzle so that inflatable peripheral sealing means on the diaphragm effect the desired seal of the nozzle independent of the aforementioned axial load.

Abstract: A multi-mode off-peak storage heat pump system for a building which includes a unidirectional flow refrigerant circuit and a brine circuit in selective heat exchange relation with one another, each being connected to a dual coil in ducts wherein air can be circulated within and between the inside and outside of the building, and an ice bank in the brine circuit for coolness and low-level heat storage, the system providing heating and cooling with no refrigerant reversing valves or coil defrost means and with optimum off-peak power utilization.

Abstract: A boot assembly applicable to either the left or right ankle and foot to apply compression for controlling edema from either an inversion or an eversion sprain characterized by a reversible (left or right) and eversible (inside or out) pliable boot element with upper and lower flaps oppositely overlapping in a selected left-to-right or right-to-left direction.

Abstract: A method of air conditioning a building having a substantially lesser nighttime than daytime cooling load which comprises (a) around the clock operation of a chiller powered by heat from a fuel-fired engine which drives an electric generator, (b) during the nighttime freezing ice by the heat-operated chiller in combination optionally with an electric chiller powered by the generator, and (c) in the daytime cooling the building by the melting of the ice in combination with the heat-operated chiller and optionally in further combination with the electric chiller.

Abstract: A ground-installed coolness storage and utilization system wherein a given volume of water-soaked soil is frozen by passing an air-chilled heat-exchange liquid through tubes buried in the soil, and thereafter on demand the heat-exchange liquid is conveyed out of the tubes buried in the frozen soil to cool a warmer medium such as ambient air in a building.

Abstract: An adjustable miter guide device for a table saw having parallel tracks to each side of a saw blade wherein two guide assemblies are provided each with a rail which can be fixed in any one of an infinite number of positions relative to a runner slidable along one of the tracks. The guide assemblies are interconnected by an adjustable common link bridging the saw blade so that one workpiece can be disposed laterally against one guide rail and the other workpiece disposed laterally against the other guide rail with an end portion overlapping the firstmentioned workpiece and abutting the firstmentioned guide rail for movement together into cutting engagement with the saw blade.

Abstract: A solar collector assembly wherein a frame surrounds a heat absorber and a flexible glazing spans the frame, wherein the frame includes a pivotable elongated member which secures and tensions the glazing such that the glazing remains under substantially constant tension notwithstanding shrinkage.

Abstract: A thermally insulated composite flexible hose, particularly suited for heat exchanger connections in building structures, comprising an outer foam jacket of thermal insulation and an inner extended unitary elastomeric extrusion comprising primary tubes spaced apart by an intermediate section separable therefrom along tear lines. The intermediate section may comprise two additional tubes smaller in diameter than the primary tubes. Insulated electrical conductors may be disposed along the outside of the unitary extrusion and inside the jacket.

Abstract: A method and means for interconnecting (a) a pair of headers for circulating inflow and outflow fluids such as a heat exchange liquid with (b) first and second extended flexible tube mats formed of a plurality of tubes cojoined side-by-side with the end portions thereof separated from one another.

Abstract: A solar thermosyphon water heater assembly wherein an inlet manifold and an outlet manifold which also serves as a storage tank are connected by a solar heat absorber comprising flexible rubber tube strips each formed of multiple tubes connected by separable webs, whereby prior to installation the strips can be rolled up about the storage tank or inlet manifold.

Abstract: A heat exchanger adapted particularly for use in embedded radiant heating systems wherein the tube ends are joined to the manifolds by the use of tube-stretching inserts.

Abstract: A hand tool for radial installation in openings through the wall of a larger rigid tube of flexible tubes having rigid inner liners in a portion of their length adjacent to the end to be so installed. The tool includes a generally cylindrical elongated handle with an axial tube receiving surface groove. The handle joins a flange having a diameter greater than the handle, and the flange is so shaped as to provide for conveying the flexible tube inward in a first bend and then axially outward in accordance with a second bend. The inner liner acts as a stiffener during insertion and as a lock whereby the flexible tube is compressed between the inner liner and the opening in the larger rigid tube.

Abstract: A heat exchanger adapted particularly for use in embedded radiant heating systems and including a plurality of webbed tube mats and associated manifolds, wherein the webs are separated from their adjacent tubes along tear lines at at least two longitudinally spaced portions of the mat.

Abstract: A solar collector simple to install in the field comprises a mat formed of side-by-side extruded EPDM rubber strips having parallel hollow tubes, with inwardly diverging recesses extending along the strips so that the strips can be removably adhered to an insulating base without cement protruding above the tubes. A one-piece extrusion seals an edge of upper light transmissive panel, covers a side of the collector and seals the collector atop a roof or like surface.

Abstract: A pet feeding device having a pedal portion which when depressed by the pet causes a lid unit to swing open to uncover a food receptable, incorporating an improved simplified linkage which minimizes the effort required to operate the pedal.

Abstract: An elastic binding device for circumferentially containing a bundle. A closed-loop elastic band is stretched around the bundle and through itself with a pin holding the ends of the band.