Abstract: A disposable filter unit which comprises a self-gasketing, self-supporting, bonded, glass-fiber filter tube sealed in a housing with two similar plastic molded end units, with one peripheral edge of the tube compressed against the interior face surface of one end unit, and the other peripheral edge against a solid surface disc element within the housing.

Abstract: A compressed gas dryer and a method of drying compressed gas, particularly air, which method comprises: intimately contacting a high-pressure, wet, compressed gas stream having a high relative humidity with a hygroscopic liquid absorbent miscible with the water to be removed, and separating the liquid absorbent and compressed gas to provide a wet liquid-absorbent mixture containing the water removed from the gas and a dry compressed gas stream; reducing the liquid-absorbent mixture to a lower pressure than the high pressure of the wet compressed gas stream; intimately contacting the liquid-absorbent mixture with a portion of the dry compressed gas stream at the lower pressure and separating the liquid absorbent from the gas stream to provide a dry liquid absorbent and a lower-pressure gas stream containing the water removed from the liquid-absorbent mixture; recycling the dry liquid absorbent for use in the contacting of the wet compressed gas stream; removing the wet lower pressure gas stream at the lower pr

Abstract: An aqueous fire-retardant composition capable of forming a foam layer and consisting ofI. an aqueous preparation comprisingA. a non-etherified amino-formaldehyde resin or its components or a mixture thereofB. at least one ammonium phosphate,C. a skeleton forming component andIi. a solution of at least one further amino-formaldehyde resin being at least partially etherified with at least one alcohol having 1 to 12 C-atoms and dissolved in an organic solvent,a construction supporting unit and an electrical cable unit with a coating of said composition.

Abstract: An improved filter tube holder and a filter assembly in which such holder is used, which holder is adapted to secure a filter tube about a passageway in the mounting or sealing plate of the assembly, and which holder comprises: a closed end cap element disposed on one side of a mounting plate; a mounting bar strip element disposed on the opposite side of the mounting plate; first and second arched strip elements at one and the other end of a tie rod; a end cap element with an opening at the opposite end from the disc element on the one side of the mounting plate; the closed end cap element and the open end cap element adapted to secure in a sealing manner a filter tube therebetween, the tie rod adapted to pass through the passageway and the filter tube; means to secure the first and second strip elements to the tie rod; and a means to move the closed cap element and/or the mounting bar strip element toward each other to secure the filter tube therebetween in a fluid-tight manner about the passageway in the mo