Patent ID: 6061011
Filing Date: 2000-05-09
Classification: G01R,H01Q,H05K

Abstract:
An incombustible wave absorber of the application-on-the-spot type which comprises:a wave absorber body made of a board selected from the group consisting of(a) an incombustible, carbon-containing, inorganic short fiber board wherein fine powder of carbon is deposited on the surfaces of inorganic short fibers,(b) an incombustible carbon-containing inorganic short fiber board obtained by laminating, on one or both sides of an inorganic short fiber board, a fire-retardant or incombustible organic or inorganic fiber-woven or non-woven fabric having a carbon fine powder-containing resistance film therein,(c) an organic foam board having carbon fine powder incorporated in a melamine resin foam by impregnation, and(d) a board obtained by laminating, on one side or both sides of an organic foam board having carbon fine powder incorporated in a melamine resin foam by impregnation, an organic or inorganic fiber-woven or non-woven fabric, or a fire-retardant or incombustible organic or inorganic fiber-woven or non-woven fabric having a carbon fine powder-containing resistance film formed therein, wherein said board is formed with folding portions and/or bonding portions so that said board is able to be set up on the spot in the form of a hollow pyramid, wedge, polygon or corrugation, and is set up in the form of the hollow pyramid, wedge, polygon or corrugation to provide a wave absorber body to be attached to surfaces of walls, a ceiling or a floor of a field-free chamber; andan incombustible cap mounted on said absorber body.