Protective enclosure for test instrument

Claim 1

A protective enclosure for use about a field electrical test instrument of the type having a casing including an exposed panel equipped with manually adjustable control elements and visually readable indicia useful in testing electrical equipment in the field, said protective enclosure comprising a heavy duty flexible waterproof wrapper sized for snug assembly about and fully enclosing said instrument casing, said wrapper having a window in juxtaposition to said instrument control panel including a sheet of pliant transparent material arranged in pleated fulness with excess material closely overlying control elements on said panel which control elements are manipulatable through said pleated fulness, said transparent sheet and protective enclosure cooperating to protect testing equipment and its instrument panel in inclement weather without interferring with its use and the manipulation of its control elements, one face of said main body having an access opening, a shallow cup-like cover for said access opening hinged along one rim edge of said access opening, the interior surfaces of the sidewalls of said cover having a snug overlapping fit with the exterior sidewalls of said main body adjacent the rim of said access opening, fastener means normally holding the rim of said cover closed over said access opening, a second cover of flexible sheet material having one edge thereof hinged to said first mentioned cover along one edge portion of said window and of a size adequate to cover and protect said window when closed thereover, and releasable means for securing said second cover closed over said window when the latter is not in use.