Vacuum head for swimming pools and similar structures

USPTO Application #: 20070169289
Title: Vacuum head for swimming pools and similar structures
Abstract: An improved vacuum head is defined by upper and lower sub-housings that are secured together to form the vacuum head assembly. A set of spherical balls are captured in appropriately sized ball-receiving pockets or sockets formed between the upper and lower sub-housings to support the vacuum head assembly a selected distance above the surface being swept. The ball-receiving sockets include a “stand-off” formation to minimize the probability of a ball-receiving socket becoming clogged with debris sufficient to the impair the ability of the ball to roll within its ball-receiving chamber. The use of balls as the rolling members allows omnidirectional control of the vacuum head while minimizing the propensity for disturbing the debris in the vicinity of the vacuum head and the formation of a undesired water-borne “cloud” of debris. The perimeter edges of the vacuum head are radiused to provide a low-resistance flow path to the underside of vacuum head to also allow the vacuum head to pull any water-borne debris from areas above the vacuum head in addition to vacuuming debris on the pool surface beneath the vacuum head. (end of abstract)
USPTO Applicaton #: 20070169289 - Class: 15 17 (USPTO)

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