US 5,685,977 A · Swimming pool filter cover

Abstract

A swimming pool filter apparatus cover providing protection to a pool service technician servicing the filter apparatus, the cover forming a barrier between the technician and the filter apparatus. The filter apparatus is of the type having a central cylindrical body with upper and lower hemispherical portions, and an outwardly protruding flange base, with water inlet and outlet pipes intersecting the cylindrical body. A removable top cap which, when removed, reveals an entrance opening through the upper hemisphere. The technician extends his arm through this opening to remove contaminated sand or other filter material for replacement. The cover consists of a heavy flexible vinyl material having a rectangularly shaped main body to encircle the filter apparatus cylindrical body. This main body top peripherial edge joins a plurality of trapezoidal segments also joined together adapted to cover the upper hemispherical portion of the filter apparatus while providing a hexagonal opening for the top cap and entrance into the vessel. Further, openings for the inlet and outlet pipes are provided in the main body, which is closed with fastening materials. Alternate embodiments of the device provide for disposable type covers, and protection of the technician against threads in the filter apparatus top entrance.

Claims18

Dependent claims

A protective cover for a swimming pool filter apparatus of the type constructed of fiberglass having a central cylindrical body with upper and lower hemispherical portions, a water inlet pipe and outlet pipe connected to the filter apparatus, a threaded opening in the upper hemispherical portion, and a top cap removably attached to the threaded opening in the upper hemispherical portion, which top cap, when removed, provides entrance by a pool service technician into the interior of the filter apparatus through the threaded opening for placement and removal of contained filter medium, said protective cover forming a barrier between the technician and the fiberglass filter apparatus when the technician must service the filter apparatus, said cover comprising:

a rectangularly shaped main body to encircle the filter apparatus cylindrical body;
and
a plurality of substantially trapezoidal shaped segments operably attached to said main body, said trapezoidal segments also operably joined together to cover the upper hemispherical portion of the filter apparatus, and said trapezoidal shaped segments forming an opening through which the filter apparatus top cap protrudes, said cover providing a protective barrier between the filter apparatus and the pool service technician against offensive fiberglass filament particles shed by the fiberglass at times when the technician removes and replaces the filter medium through the top cap opening in the filter apparatus.

a rectangularly shaped main body to encircle the filter apparatus cylindrical body, said rectangularly shaped body having a top edge and a bottom edge, said top edge gathered such that the rectangularly shaped main body forms substantially a trapezoidal body, said gathered top forming an opening through which the filter top cap protrudes, said cover providing a protective barrier between the filter apparatus and the pool service technician against offensive fiberglass filament particles shed by the fiberglass at times when the technician removes and replaces the filter medium through the top cap opening in the filter apparatus.

Dependencies are inferred from the claim text.

Swimming pool filter cover

Life of this patent

Swimming pool filter cover

Life of this patent

Abstract

Claims18