Thermally insulative sleeve
AssigneeFederal-Mogul World Wide, Inc.
InventorBrian M. Synder
Life of this patent
Estimating the term…
Abstract
A sleeve for providing thermal insulation to elongated substrates is disclosed. The sleeve is formed from a composite sheet having a tough, resilient reinforcing layer to which are attached a metallic reflective layer on one side and a fibrous, non-woven insulative layer on the opposite side. The composite sheet is reverse folded with the reflective layer facing outwardly and the insulative layer facing inwardly. A seam is formed lengthwise along the sleeve in spaced relation to the reverse fold, thereby defining a central space for receiving the elongated substrates. The seam is formed by fusing the inwardly facing insulative layer on each side of the reverse fold together.
Claims27
A composite sheet for providing thermal insulation, said sheet comprising:
- a metallic reflective layer;
- a reinforcing layer comprising a flexible, tear-resistant material substantially overlying said reflective layer and attached thereto;
- an insulative layer comprising a fibrous, non-woven material, said insulative layer having a predetermined thickness providing air spaces for increased insulative capability, said insulative layer substantially overlying said reinforcing layer and being attached thereto, wherein said sheet is subdivided into first and second sheet portions, a reverse fold being formed between said first and said second sheet portions so as to bring said first sheet portion into overlying relation with said second sheet portion, said insulative layer on said first sheet portion facing said insulative layer on said second sheet portion;
- a seam positioned lengthwise along edges of said first and second sheet portions, said edges being substantially aligned with one another in overlying relationship, said insulative layer on said first and second sheet portions being fused together along said edges thereby attaching said first and second sheet portions to one another;
- and
- said first and second sheet portions and said reverse fold and said seam defining a central space therebetween adapted to receive elongated substrates to be insulated.
A sleeve for providing thermal insulation to elongated substrates, said sleeve comprising:
- a multi-layer sheet having a first and a second sheet portion;
- a reverse fold formed between and defining said first and second sheet portions so as to bring said first sheet portion into overlying relation with said second sheet portion;
- a seam formed between said first and second sheet portions and attaching them together, said seam being positioned along said sheet portions in spaced relation to said reverse fold, said first and second sheet portions and said reverse fold and said seam defining a central space adapted to receive said elongated substrates;
- and
- wherein said multi-layer sheet comprises:
- a metallic reflective layer forming an outwardly facing surface of said first and second sheet portions;
- a reinforcing layer comprising a flexible, tear-resistant material positioned between said central space and said reflective layer and attached thereto;
- and
- an insulative layer comprising a fibrous, non-woven material having a predetermined thickness providing air spaces for increased insulative capability, said insulative layer being positioned between said central space and said reinforcing layer and being attached thereto.
A sleeve for providing thermal insulation to elongated substrates, said sleeve comprising:
- a reinforcing layer comprising a flexible, tear-resistant material having oppositely facing surfaces;
- a reflective metallic coating positioned on one of said surfaces;
- an insulative layer comprising a fibrous, non-woven material having a predetermined thickness providing air spaces for increased insulative capability being attached to the other of said surfaces;
- a reverse fold formed in said reinforcing layer dividing said reinforcing layer into first and second portions, said reverse fold bringing said insulative layer on said first portion into facing relation with said insulative layer on said second portion;
- a seam formed between said insulative layers on said first and second portions and attaching them together, said seam being positioned in spaced relation to said reverse fold, said seam, said reverse fold and said first and second portions defining a central space therebetween for receiving said elongated substrates.
Dependencies are inferred from the claim text.