Abstract: A high-temperature, rapid-cycle pin oven for the curing of coatings on hollow container components, includes an oven unit (2) whose housing (14) is divided into three compartments interconnected by internal explosion relief panels (136,142,144). One of the compartments (36), designed for a normal working pressure in the range 1 to 1.01 atmosphere, has a light explosion-relief panel (132) which provides primary pressure relief to atmosphere while ensuring that if the internal panels blow out, the entire interior is vented to atmosphere. This panel comprises a light casing (202) with thin tinplate bursting diaphragms (210) in the bottom, overlaid by a light, absorbent mattress (220), and a light top cover (222) which can blow out. A perforated hot air delivery screen (38) forms one wall of the narrow working chamber (34) and comprises a number of plates removably and replaceably fastened to a frame (72) fixed in the housing.

Abstract: A high-temperature, rapid-cycle pin oven for the curing of coatings on hollow container components, includes an oven unit (2) whose housing (14) is divided into three compartments interconnected by internal explosion relief panels (136,142,144). One of the compartments (36), designed for a normal working pressure in the range 1 to 1.01 atmosphere, has a light explosion-relief panel (132) which provides primary pressure relief to atmosphere while ensuring that if the internal panels blow out, the entire interior is vented to atmosphere. This panel comprises a light casing (202) with thin tinplate bursting diaphragms (210) in the bottom, overlaid by a light, absorbent mattress (220), and a light top cover (222) which can blow out. A perforated hot air delivery screen (38) forms one wall of the narrow working chamber (34) and comprises a number of plates removably and replaceably fastened to a frame (72) fixed in the housing.

Abstract: A needle punched synthetic fabric of polyester fibers is impregnated with asphalt emulsion which is absorbed in an amount to approximately double the weight of the needled fabric. There is no fiber-free agglomoration of asphalt and the impregnated fabric is flexible and relatively immune to concentrated impact loads even at freezing temperature. It can be made waterproof for a single membrane built up roof by application of asphalt emulsion or hot-mopped asphalt and in such applications has properties acceptable under existing fire simulation tests. Other synthetic fibers such as nylon or polyester-nylon mixes can be used.