Closure member

A closure member insulating, sealing, waterproofing and otherwise protecting an object from the elements;

• said closure member being of integral, one-piece construction, said closure member being of synthetic resinous heat recoverable material, said closure member having a main-body wall enveloping and wrapping-around said object, said main-body wall having two hooks interconnected and assembled as a mechanical interlocked joint effecting positive mechanical closure and seal of said joint without depending upon fusion for joint integrity, each of said hooks having a metal insert imbedded therein having the configuration of its respective hook, said joint forming with said main-body wall an enveloping tubular member, said hooks having ends, said ends of said hooks having small projections defining detents, said two hooks being a first hook and a second hook, said first hook having a main body, upper leg, knee and lower leg, said upper leg of said first hook having an interior surface, said second hook having a main body and leg, said leg of said second hook having an interior surface;
• in assembly:
• said leg of said second hook being mechanically interposed, interfolded and sandwiched between said upper and lower legs of said first hook, said lower leg of said first hook being mechanically interposed, interfolded and sandwiched between said leg of said second hook and said main body of said second hook, said detent of said second hook being mechanically imbedded in said interior surface of said upper leg of said first hook, said detent of said first hook being mechanically imbedded in said interior surface of said leg of said second hook, said upper leg and said lower leg of said first hook defining a corner, said leg and main body of said second hook defining a corner, said corner of said first hook, and said detent of said first hook imbedded in said leg of said second hook, defining and affording a first assembly range or "window" of detent imbedment in said second hook within which range of detent imbedment in said second hook said joint can be misaligned without loss or joint integrity, said corner of said second hook, and said detent of said second hook imbedded in said upper leg of said first hook, defining and affording a second assembly range or "window" of detent imbedment in said first hook within which range of detent imbedment in said first hook said joint can be misaligned without loss of joint integrity;
• joint integrity being said detent of said first hook remaining sandwiched between said leg and main body of said second hook with said detent of said first hook imbedded in said leg of said second hook, and said detent of said second hook remaining sandwiched between said upper leg and lower leg of said first hook with said detent of said second hook imbedded in said upper leg of said first hook;
• and said joint retaining its said joint integrity so long as said detent of said first hook remains sandwiched between said leg and main body of said second hook and said detent of said first hook remains imbedded in said leg of said second hook, and so long as said detent of said second hook remains sandwiched between said upper leg and lower leg of said first hook and said detent of said second hook remains imbedded in said upper leg of said first hook, and such mechanical imbedments of said detents with said respective hooks effecting such positive mechanical closure and seal of said joint.