Abstract:
An aeration nozzle (11) for spraying water infused with air into an above-ground water cavity (13) defined by a wall (4) comprises a nozzle body (17) having at least a first internal conical portion including an upstream end and a downstream end, the downstream end being smaller than the upstream end; a water way (15) extending through the nozzle body (17) and the first internal conical portion; an air way (14) extending through the nozzle body (17), the air way (14) intercepting the water way (15) within the nozzle body (17) downstream of the first internal conical portion, and a check valve (22) disposed along the air way (14) that permits air to be pulled through the air way (14) and into the water way (15) by way of a vacuum force caused by water flowing within the water way (15) through the first internal conical portion and prevents water from entering the air way (14).
Abstract:
An internal tensioning structure for use in an inflatable product fulfills the basic function of maintaining two adjacent inflatable surfaces in a desired geometric arrangement when the inflatable product is pressurized. The tensioning structure is formed by connecting a pair of plastic strips sheets via spaced-apart strands, such as strings or wires. When pulled taut, the strands provide a high tensile strength between the two opposed plastic strips. At the same time, the plastic strips facilitate a strong, long-lasting weld between the tensioning structure and the inflatable product.
Abstract:
A swing set (10) is shown including a support beam (16), a plurality of legs (14), and swing apparatus (18, 24, 26) supported by the support beam. The support beam and legs include a plurality of tubes (28, 30, 38, 40, 44) coupled together by connectors (42, 48). The connectors include an inner tube (66) and a cover (68, 68') positioned over the inner tube. Feet (46) are provided at the lower ends of the legs that rotate relative to the legs.
Abstract:
An internal tensioning structure for use in an inflatable product fulfills the basic function of maintaining two adjacent inflatable surfaces in a desired geometric arrangement when the inflatable product is pressurized. The tensioning structure is formed by connecting a pair of plastic strips sheets via spaced-apart strands, such as strings or wires. When pulled taut, the strands provide a high tensile strength between the two opposed plastic strips. At the same time, the plastic strips facilitate a strong, long-lasting weld between the tensioning structure and the inflatable product.
Abstract:
A multifunctional air pump is disclosed including an air pump assembly, a control module, and a remote user input for inflating and deflating an inflatable product. The air pump may be operated remotely for convenience. The air pump may also operate automatically to maintain the pressure of the inflatable product.