Patent application number | Description | Published |
20100116061 | Method and device for determining the gas pressure in evacuated bodies - The invention is directed to a method and a system for using a thermal measurement method to determine the gas pressure in a vacuum element or in an evacuated body having an envelope and comprising on its exterior a flap delimited by two film faces that are joined together in the region of the free edge of the flap; the system according to the invention is characterized, on the one hand, by the fact that the space between the two film faces of the flap communicates with the space inside the envelope of the vacuum element and is at least partially filled with an open-pored, thin material layer, and, on the other hand, by a device for measuring the gas-pressure-dependent heat exchange coefficient of the flap at the location of the material layer; the invention also relates to the manner of operation of this measuring device. | 05-13-2010 |
20110120620 | Method for the Production of a Vacuum Insulation Element Wrapped in a Film, Filled with Powder - The invention relates to a method for producing an especially panel-shaped vacuum insulation element which is wrapped in a film and is filled with a powder. According to said method, the unmolded, loose powder is filled, particularly poured, into the opening of a bag which is formed from a high-barrier film and is open on one side; a filter material that is permeable to air and impermeable to powder dust is fixed to the internal face of the film bag in the area of the opening of the filled film bag in such a way that the interior of the bag is closed in a dust-tight manner while air can still be discharged; the interior of the dust-tightly closed film bag is then evacuated; and the evacuated film bag is finally air-tightly closed in a vacuum. | 05-26-2011 |
20130149481 | EVACUATED SHEET MATERIAL FOR THERMAL INSULATION - A sheet material for thermal insulation, comprising a flat core of an open-pored material having two parallel extending surfaces, and a circumferential region inter-connecting the surfaces; a first barrier film in contact with a first surface of the core and comprising a sealing layer, and a fully circumferential protrusion of the first barrier film; a flat filter material in contact with a second surface of the open-pored core and disposed oppositely first barrier film and providing a fully circumferential protrusion a second barrier film in contact with the outer face of the flat filter material and comprising at least one sealing layer facing the flat filter material, and a fully circumferential protrusion of said second barrier film; a sealing seam extending circumferentially along the protrusion of the two films and fixing the two films to each other; wherein the filter material is welded circumferentially into the sealing seam, and wherein the volume between the two barrier films and the sealing seam is sealed and evacuated; and method for producing the insulation sheet. | 06-13-2013 |