公开(公告)号：US20080083279A1

公开(公告)日：2008-04-10

申请号：US11275358

申请日：2005-12-28

Applicant: Donald C. Albin

Inventor： Donald C. Albin

IPC: G01N29/00

CPC classification number: G01N29/11 ,  G01N29/46 ,  G01N2291/056

Abstract: A method for measuring a first angular specific sound absorption spectrum of a first sound absorbing sample. The first sound absorbing sample has a predetermined random incidence sound absorption spectrum. The angular specific sound absorption spectrum is determined from a sound wave incident on a surface of the first sound absorbing sample with a predetermined angle of incidence that is greater than zero degrees from a plane parallel to the surface of the first surface. A first weighting factor that provides a fit of the angle specific sound absorption spectrum of the first sound absorbing sample to the predetermined random sound absorption spectrum is then determined. Next, a second angular specific sound absorption spectrum of a second sound absorbing sample at the predetermined angle of incidence is determined. The weighting factor is then used to determine the random specific sound absorption spectrum from the angle absorption spectrum of the second sound absorbing sample.

Abstract translation: 一种用于测量第一吸声样品的第一角度特定吸声光谱的方法。 第一吸音样品具有预定的随机入射吸声光谱。 角度特定吸声光谱是从入射在第一吸音样品的表面上的声波以与平行于第一表面的平面大于零度的预定入射角确定的。 然后确定提供第一吸声样品的角度特定吸声光谱与预定随机吸声光谱的拟合的第一加权因子。 接下来，确定第二吸声样品在预定入射角下的第二角度比吸声光谱。 然后使用加权因子从第二吸声样品的角度吸收光谱确定随机特定吸声光谱。

公开(公告)号：US20070292655A1

公开(公告)日：2007-12-20

申请号：US11424985

申请日：2006-06-19

Applicant: Donald C. Albin

Inventor： Donald C. Albin

IPC: D05C17/02 ,  B32B33/00 ,  B32B3/02

CPC classification number: D05C17/02 ,  D05D2305/30 ,  D06N7/0065 ,  D06N7/0068 ,  D06N2201/02 ,  D06N2201/0254 ,  D06N2201/0263 ,  D06N2203/042 ,  D06N2203/061 ,  D06N2203/065 ,  D06N2205/023 ,  D06N2209/105 ,  Y10T428/23957 ,  Y10T428/23979

Abstract: A tufted carpet includes a primary backing and a plurality of tufts. The plurality of tufts are attached to the primary backing by looping each yarn tuft through different openings of the primary backing with strand sections from adjacent tufts going through each opening. The tufted carpet further includes an adhesive or polymeric material contacting the tufts such that the tufts are bonded together. A system and method for forming the tufted carpets is also provided.

Abstract translation: 簇绒地毯包括主衬里和多个簇。 通过将每个纱线毛束通过主衬里的不同开口环绕，使得多个毛束通过穿过每个开口的相邻毛簇的纱线部分环绕。 簇绒地毯还包括与毛簇接触的粘合剂或聚合物材料，使得簇结合在一起。 还提供了一种用于形成簇绒地毯的系统和方法。