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US 4,376,320 AGranted
Vacuum cleaner head for submerged surfaces
AssigneePoolquip Industries (Proprietary Limited)
InventorFabio B. V. Linda
Life of this patent
Estimating the term…
Abstract
A vacuum cleaner head for use on submerged surface, such as in swimming pools, has a flat body to which wheels are attached. The wheels are mounted on axles in fittings which are subsequently mounted on the flat body. Flanges on the flat body cooperate with the fittings to prevent the axles or the wheels from becoming detached.
Claims5
A vacuum cleaner head for use on submerged surfaces, the head comprising
- a generally planar body,
- an opening through the body to which a vacuum source can be connected,
- upstanding flanges on the body,
- fittings mounted on the body and located between the flanges,
- axle mounting holes through the fittings,
- axles mounted in the holes, and
- wheels journalled on the axles,
- the axles being secured in place in the holes
- by the flanges on either side of the fittings, and the wheels being arranged to support the body above a submerged surface.
6 more elements
A vacuum cleaner head as claimed in any preceding claim, wherein the fittings, wheels, axles and body are made from injection moulded plastics material.
Dependencies are inferred from the claim text.