A seal assembly for closing an aperture in an aerodynamic surface of a structure, the seal assembly comprising: a track for attachment to the structure; and a retractable seal including a flexible substrate and a plurality of rods connected to the substrate, wherein at least one of the rods is mounted for running movement along the track, and the seal is moveable between an extended position and a retracted position by moving the at least one rod along the track accompanied by folding/unfolding of the seal substrate, and wherein the seal is biased to its extended position.

A seal assembly for closing an aperture in an aerodynamic surface of a structure, the seal assembly comprising: a track for attachment to the structure; and a retractable seal including a flexible substrate and a plurality of rods connected to the substrate, wherein at least one of the rods is mounted for running movement along the track, and the seal is moveable between an extended position and a retracted position by moving the at least one rod along the track accompanied by folding/unfolding of the seal substrate, and wherein the seal is biased to its extended position.

A disclosed reinforcer includes a shrinkable layer able to shrink in a direction of shrinkage, under the effect of a heat-shrink heat treatment, from an initial state to a shrunk state, a first corrugatable layer, which includes a gridwork of filaments added against the shrinkable layer and connected to the shrinkable layer by connection lines spaced apart and extending transversely with respect to the direction of shrinkage, the first corrugatable layer exhibiting a shrinkage that is substantially zero or that is smaller than that of the shrinkable layer, so that, when the shrinkable layer is in the initial state, portions of the first corrugatable layer, each defined between two consecutive connection lines, are bent over and, when the shrinkable layer is in the shrunk state, the portions of the first corrugatable layer are curved.

A disclosed reinforcer includes a shrinkable layer able to shrink in a direction of shrinkage, under the effect of a heat-shrink heat treatment, from an initial state to a shrunk state, a first corrugatable layer, which includes a gridwork of filaments added against the shrinkable layer and connected to the shrinkable layer by connection lines spaced apart and extending transversely with respect to the direction of shrinkage, the first corrugatable layer exhibiting a shrinkage that is substantially zero or that is smaller than that of the shrinkable layer, so that, when the shrinkable layer is in the initial state, portions of the first corrugatable layer, each defined between two consecutive connection lines, are bent over and, when the shrinkable layer is in the shrunk state, the portions of the first corrugatable layer are curved.

A deposition source evaporating apparatus includes a crucible set for accommodating a deposition source, a spray unit positioned on the crucible set, a heater positioned in the crucible set for heating the crucible set to evaporate the deposition source through the spray unit, and a heat radiation preventing plate surrounding the spray unit for blocking radiation of heat at a side of the spray unit. At least one of the crucible unit and the heat radiation preventing plate includes a carbon fiber composite material.

A deposition source evaporating apparatus includes a crucible set for accommodating a deposition source, a spray unit positioned on the crucible set, a heater positioned in the crucible set for heating the crucible set to evaporate the deposition source through the spray unit, and a heat radiation preventing plate surrounding the spray unit for blocking radiation of heat at a side of the spray unit. At least one of the crucible unit and the heat radiation preventing plate includes a carbon fiber composite material.

A reinforcing structure made of a sheet-like cellular base material which comprises material attenuations (3) in a distribution over its area in a view from above, wherein the material attenuations sub-divide the base material into a multitude of material islands (1R; 1T) which are delineated from each other by the material attenuations (3) but are still connected to each other, wherein (a) the material islands (1R; 1T) are convex base polygons in a view from above; (b) a respective plurality of the material islands (1R; 1T) jointly form a convex and preferably regular compound polygon (1H) in a view from above; and (c) the compound polygons (1H) differ, in their number of corners and/or in a ratio of the lengths of their sides, from the base polygons which form the material islands (1R; 1T).

A reinforcing structure made of a sheet-like cellular base material which comprises material attenuations (3) in a distribution over its area in a view from above, wherein the material attenuations sub-divide the base material into a multitude of material islands (1R; 1T) which are delineated from each other by the material attenuations (3) but are still connected to each other, wherein (a) the material islands (1R; 1T) are convex base polygons in a view from above; (b) a respective plurality of the material islands (1R; 1T) jointly form a convex and preferably regular compound polygon (1H) in a view from above; and (c) the compound polygons (1H) differ, in their number of corners and/or in a ratio of the lengths of their sides, from the base polygons which form the material islands (1R; 1T).

The present invention relates to a method for preparing an activated lignin composition. In addition, the present invention also relates to a method for further processing the thus activated lignin composition in a method for preparing a lignin-phenol formaldehyde resin. Such a lignin-phenol formaldehyde resin can be used in the manufacturing of laminates by replacing the traditional synthetic phenol formaldehyde resin.

The present invention relates to a method for preparing an activated lignin composition. In addition, the present invention also relates to a method for further processing the thus activated lignin composition in a method for preparing a lignin-phenol formaldehyde resin. Such a lignin-phenol formaldehyde resin can be used in the manufacturing of laminates by replacing the traditional synthetic phenol formaldehyde resin.