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US 11,724,224 B2Granted
Barriers and filters
AssigneeErtec Environmental Systems LLC
InventorVincent. P. Morris
Life of this patent
Estimating the term…
Abstract
An elongate barrier comprising an elongate apertured load-bearing sheet material and an elongate apertured filter material attached to the load-bearing sheet material. The length of the filter material can be changed elastically so that the barrier material can be transported in the form of a roll which can be unrolled for installation.
Claims20
A barrier material which comprises
- (1) an elongate load-bearing apertured material which comprises apertures and
- (2) an elongate filter material which (i) is attached to at least part of the load-bearing apertured material and (ii) comprises apertures which are substantially smaller than the apertures in the elongate load-bearing apertured material;
- wherein the filter material
- 1) comprises
- (A) a first set of polymeric strands, the polymeric strands in the first set being (i) parallel to each other and (ii) spaced apart from each other, and
- (B) a second set of polymeric strands, the polymeric strands in the second set being (i) parallel to each other, (ii) spaced apart from each other, and (iii) at an angle to the polymeric strands in the first set;
- the polymeric strands in the first and second sets of polymeric strands (i) being woven together so that they meet each other at crossover sections at which the polymeric strands are not bonded together, and (ii) forming open apertures which have an aperture size, measured by the procedure of ASTM D-4751, which is less than 600 μm (0.500 mm)
- 2) has a percentage open area, measured by COE 02215-86, of 8-60%, and
- 3) has a length which can be changed elastically by 0.1% and which, after that change in length, has a percentage open area, measured by COE 02215-86, of 8-60%, and comprises open apertures which have an aperture size, measured by the procedure of ASTM D-4751, which is less than 600 μm (0.500 mm).
6 more elements
A filter material which
- (1) comprises
- (A) a first set of polymeric strands, the polymeric strands in the first set being (i) parallel to each other and (ii) spaced apart from each other, and
- (B) a second set of polymeric strands, the polymeric strands in the second set being (i) parallel to each other, (ii) spaced apart from each other, and (iii) at an angle to the polymeric strands in the first set;
- the polymeric strands in the first and second sets of polymeric strands (i) being woven together so that they meet each other at crossover sections at which the polymeric strands are not bonded together, and (ii) forming open apertures which have an aperture size, measured by the procedure of ASTM D-4751, which is less than 600 μm (0.500 mm),
- (2) has a percentage open area, measured by COE 02215-86, of 8-60%, and
- (3) has a length which can be changed elastically by 0.1% and which, after that change in length, has a percentage open area, measured by COE 02215-86, of 8-60% and comprises open apertures which have an aperture size, measured by the procedure of ASTM D-4751, which is less than 600 urn (0.500 mm).
3 more elements
A barrier material which comprises
- (1) an elongate load-bearing apertured material which comprises apertures and
- (2) an elongate filter material which (i) is attached to at least part of the load-bearing apertured material and (ii) comprises apertures which are substantially smaller than the apertures in the elongate load-bearing apertured material;
- wherein the filter material
- 1) comprises
- (A) a first set of polymeric strands, the polymeric strands in the first set being (i) parallel to each other and (ii) spaced apart from each other, and
- (B) a second set of polymeric strands, the polymeric strands in the second set being (i) parallel to each other, (ii) spaced apart from each other, and (iii) at an angle to the polymeric strands in the first set;
- the polymeric strands in the first and second sets of polymeric strands (i) being woven together so that they meet each other at crossover sections at which the polymeric strands are not bonded together, and (ii) forming open apertures which have an aperture size, measured by the procedure of ASTM D-4751, which is less than 600 μm (0.500 mm);
- 2) has a percentage open area, measured by COE 02215-86, of 8-60%, and
- 3) has a length which can be changed elastically by 0.1% and which, after that change in length, has a percentage open area, measured by COE 02215-86, of 8-60% and comprises open apertures which have an aperture size, measured by the procedure of ASTM D-4751, which is less than 600 μm (0.500 mm);
- the barrier material being in the form of multiple layers wrapped around a core.
7 more elements
Dependencies are inferred from the claim text.