초록 ▼

A unitary removable and reuseable jacket for the thermal insulation of pipe accouterments is disclosed. The fully-formed generally-rectangular jacket is composed of three layers: a heat and water resistant outer fabric layer, a hardened rigid-cell polyurethane middle layer, and a thin flexible heat-

A unitary removable and reuseable jacket for the thermal insulation of pipe accouterments is disclosed. The fully-formed generally-rectangular jacket is composed of three layers: a heat and water resistant outer fabric layer, a hardened rigid-cell polyurethane middle layer, and a thin flexible heat-shrinkable plastic inner layer. The inner and outer layers are joined together by perimeter seams and a transverse center seam which form two pockets adapted to contain the polyurethane foam middle layer. Said inner and outer layers are formed at time of manufacture while the middle layer is formed during the application process. During the application process, an exothermic chemical reaction is generated by the combination of the chemicals polyol and isocyanate which are inserted between the inner and outer layers through holes contained in the outer layer, to form a rapidly expanding and hardening rigid cell polyurethane foam middle layer. During the application of the jacket around the accouterment, in response to the exothermic chemical reaction, the inner layer shrinks to fit the exact shape of the underlying pipe, as does the rigid-cell middle layer which is being formed. When installation is complete, the jacket may be removed and reused by using pressure to “crack” the transverse seam dividing the middle layer into two pockets which are positioned on opposite sides of the accouterment.

대표청구항 ▼

A multi-layered, unitary, removable, and reuseable thermal insulating jacket for pipe accouterments, valves, and the like, which comprises: (a) a generally rectangular outer layer, said outer layer fabricated out of a flexible, non-shrinkable, non-elastic heat and water-resistant material and having

A multi-layered, unitary, removable, and reuseable thermal insulating jacket for pipe accouterments, valves, and the like, which comprises: (a) a generally rectangular outer layer, said outer layer fabricated out of a flexible, non-shrinkable, non-elastic heat and water-resistant material and having two sides and two ends; (b) a generally rectangular inner layer fabricated out of a flexible, heat-shrinkable plastic material, having two sides and two ends, and joined to said outer layer by a seam which extends around the perimeter of the inner layer, said inner layer adapted to conform to the shape of the pipe accouterment, valve or the like upon heating; (c) a central transverse seam joining said inner and outer layers and extending from side to side of said jacket to form two sully-enclosed, independent pockets between said inner and outer layers; (d) a middle layer of rigid-cell polyurethane foam contained within said pockets; and (e) means to secure said jacket around the pipe accouterment valve or the like whereby said pockets are positioned on opposite sides of said pipe accouterment, valve or the like with said inner layer positioned immediately adjacent thereto.