Pipe insulation suitable for both low-pressure steam and refrigeration is prepared with benefit from constant composition styrene-maleic anhydride copolymer containing 85 to 65 weight percent styrene and 15 to 35 weight percent maleic anhydride.

This disclosure relates to a unitary insulating member comprised of a plurality of strips of creped kraft paper intermittently fastened together by a thermosettable resin adhesive and compressed to a density higher than that of any single creped strip. The bonded unitary member has a high dielectric strength and a large degree of the resilient and conformable properties of its constituent crepe paper strips.

A building structure in which a rib extends inwardly from exterior sheathing and has a T-shaped base on which is supported means for holding an insulation panel in position beneath the sheathing, the said means including a channel-shaped portion in which the said base is positioned.

A capillary insulation assembly for insulating low temperature liquids consists of a cellular core defining discrete cells and a capillary cover having at least one or more openings per cell attached to the liquid side of the cellular core. A structurally stable liquid-gas interface forms at each of the openings preventing the entry of liquid into the cell and thereby positioning a layer of gas between the liquid and the container wall. A thermal barrier in the form of an insulative layer is int...

An insulation tester comprising a down-the-hole switching element and an out-of-the-hole switching element using a parallel-opposing combination of a rectifier and a thyristor, a control unit, a current transformer, and a measuring unit comprising a voltage-amplitude meter, a rectifier, a differential relay, and a ratiometer.

An insulation fastener and method for supporting insulation on a block wall is provided. The fastener has one end that is anchored to a block in the wall and another end that pierces the insulation. The anchoring end is positioned to lie inside a hollow inner core of the block.

An insulation assembly for insulating buildings is disclosed. The insulation assembly includes a low density, binderless, mineral fiber mat, such as a binderless fibrous glass batt which is covered by a layer to form a package. The batt is joined to the package by an adhesive and air passageway is defined by the package for directing atmospheric air to the batt. The insulation assembly is lightweight and has a compression ratio in excess of 6:1.

A removable/reusable insulating cover includes an insulating material, a flexible and puncture resistant coating, a flap which is an extension of the coating and a hinge which is an integral part of the coating. The system provides a flexible yet durable insulation cover, which may be removed and reused.

An insulation member (1) based on non-woven material, wherein In order to provide the insulation member based on non-woven it material, which is distinguished by fulfilling one or more requirements such as a high level of sound absorption and sound damping, high heat insulation and low formation of liquid water at high temperature gradients and high humidity gradients, a layered construction is provided from different non-woven materials such as padding-type (fleece) non-woven material or melt-e...

Thermal insulation for vessels and piping within the reactor containment area of nuclear power plants is disclosed. The thermal insulation of this invention can be readily removed and replaced from the vessels and piping for inservice inspection, can withstand repeated wettings and dryings, and can resist high temperatures for long periods of time.