Transformer pad

Claim 1

A pad for supporting an electrical transformer over a planar surface, said pad comprising in combination: a. a high density upper surface of fiberglass reinforced plastic material, said upper surface defining a partially enclosed volume; b. a high density lower surface of fiberglass reinforced plastic material, said lower surface being secured to said upper surface and fully enclosing the internal volume defined by said upper surface; c. an internally disposed passageway through said fully enclosed volume for providing physical access between said transformer and said planar surface, said passageway being formed by (i) geometrically corresponding openings through said upper surface and said lower surface and, (ii) a transverse surface of high density, low porosity synthetic material, said transverse surface being integral with, and extending between, the periphery of said geometrically corresponding openings; d. a low density core of expanded foam synthetic material disposed within and substantially filling the internal volume defined by said upper, lower and transverse surfaces; e. connection means for connecting said electrical transformer to said pad; whereby said upper, lower and transverse surfaces and said core form an integral semi-rigid support structure.