A pool sweep having a continuously-cycling, flow-interrupting valve at the upstream entrance to an inertial flow chamber. The valve has an entrance mouth with one or more closure lips pivoting been open and closed positions to open and close the mouth. The lips are biased towards closure with low creep biasing means, as by materials having a strain at its elastic limit of below 0.5 such as one or more metal springs urging the lip toward closure. The magnitude of the opening bias throughout the r...

A pool cleaner is provided constructed of a body having freely moving wheels positioned thereon to contact the bottom surface of a pool, a large diverter wheel in front designed to contact the edge of a pool during operation, diverting the pool cleaner right or left, a water flow mechanism to hold the pool cleaner against the surface of a pool while picking up debris therefrom and a propulsion mechanism which utilizes water pressure to propel the pool cleaner forward and periodically backward to...

An adjustable flooring structure for swimming pools is formed by a series of large, flat, panel-like modules interconnected to form a floor. The structure includes ballasting means formed by serially connected pipes in the modules which pipes can be filled with water or air to alter the buoyancy of the structure as desired. The structure is supported from the pool floor on adjustable legs and without the legs has a low overall height so that it can be settled to the bottom of the pool when not r...

A swimming pool cover has a central arm and support arms pivotally attached to the central arm for movement generally in one plane. A sheet of flexible, waterproof material is attached to each of the arms and extends between the arms. The central arm is pivoted to move in a vertical plane, and is raised and lowered by means of a manually operated rack and pinion gear located in a post. The post is supported by a swivel mount set in the pool surrounds so that the central arm may be rotated from a...

An electrically driven endless track vehicle draws water through a filter compartment and expels the water normal to the surface on which the vehicle runs. An unbalanced float and random timing of a reversing switch causes the vehicle to traverse a pool floor randomly.

A novel fountain device for a swimming pool is disclosed which features an adjustable jet pump for controlling the elevation of the water column as it is ejected from the fountain and the rise and fall of said column from a minima to a maxima.

A swimming pool of circular or oval shape constructed of interleaved extruded aluminum panels with water containing liner secured thereto wherein hoop stresses in the pool walls from the water pressure are withstood along the panels and the joints therebetween. The pool walls are constructed from a plurality of interleaved extruded aluminum panels which are constructed so that when a pair of adjacent panels are positioned relative to each other in a first predetermined position, the male and fem...

A swimming pool skimming device is disclosed for use with a pool sweeping device connected to a source of water pressure to propel the pool sweeping device within the swimming pool. The invention includes a body member having a specific gravity substantially less than one enabling the body member to provide buoyancy. The body member has a central cavity communicating with an open bottom in the body member. Means are provided for rigidily mounting the body member to the surface unit of the pool s...

A one piece molded pool structure configured to define a pool compartment having a seat formed therein below the water line and having an equipment compartment for housing water circulation and flow control equipment. Water from the pool compartment moves through the circulation equipment and by selective positioning of the flow control equipment, is returned under pressure to the pool compartment either through a first hydro-jet distribution manifold located below the water line or through a se...

Portable pool models for demonstrative and sales purposes to show prospective pool buyers the appearance of a given pool configuration landscaped to simulate a full-size pool in a ground installation on their property as well as illustrating and demonstrating the construction and maintenance of the water content and plumbing and electrical assemblies of the pool installation.