公开(公告)号：US06276209B1

公开(公告)日：2001-08-21

申请号：US09466750

申请日：1999-12-17

申请人： Mark E. Schafer ,  Robert J. Ross ,  John R. Erickson ,  Rodney C. DeGroot

发明人： Mark E. Schafer ,  Robert J. Ross ,  John R. Erickson ,  Rodney C. DeGroot

IPC分类号： G01N2908

CPC分类号： G01N29/2493 ,  G01N29/07 ,  G01N29/11 ,  G01N33/46 ,  G01N2291/0238 ,  G01N2291/0258 ,  G01N2291/0422 ,  G01N2291/048 ,  G01N2291/105 ,  G01N2291/106 ,  G01N2291/2634

摘要： A system and method of detecting anomalies and/or grain variations in a wooden member. At least one ultrasonic transmitter applies an ultrasound waveform into a surface of a wooden member so as to generate a multiplicity of ultrasonic waves including, e.g., longitudinal and shear ultrasonic waves. These ultrasonic waves are measured after propagation through the wooden member by at least one ultrasonic receiver disposed on the same surface of the wooden member. At least one ultrasonic receiver may also be placed opposite the ultrasonic transmitter so as to detect radial transmission of the longitudinal ultrasonic wave at a point across from the wooden member. The received ultrasonic waves are processed to determine anomalies and/or grain variations in the wooden member at positions of the wooden member between the ultrasonic transmitter and the ultrasonic receiver(s). The ultrasonic transmitters and receivers may be placed in rollers to facilitate high-speed, in-line processing of wooden members.

摘要翻译： 检测木制构件的异常和/或谷物变化的系统和方法。 至少一个超声波发射器将超声波施加到木构件的表面中，以产生包括例如纵向和剪切超声波的多个超声波。 这些超声波是在通过设置在木构件的同一表面上的至少一个超声波接收器通过木构件传播之后测量的。 至少一个超声波接收器也可以放置在与超声波发射器相对的位置，以便在远离木构件的点处检测纵向超声波的径向传播。 处理接收到的超声波以确定木质构件在超声波发射器和超声波接收器之间的木构件的位置处的异常和/或颗粒变化。 超声波发射器和接收器可以放置在辊子中，以便于木制构件的高速的在线处理。

公开(公告)号：US5185214A

公开(公告)日：1993-02-09

申请号：US714402

申请日：1991-06-12

申请人： Susan L. LeVan ,  Rodney C. DeGroot

发明人： Susan L. LeVan ,  Rodney C. DeGroot

IPC分类号： B27K3/50

CPC分类号： B27K3/34 ,  B27K3/166 ,  B27K3/50 ,  B27K2200/10 ,  B27K2240/30 ,  Y10S428/921 ,  Y10T428/662

摘要： A one step process for imparting both decay resistance and fire retardancy to wood and cellulosic materials by impregnating the products with a treatment solution composed of a water soluble mixture of a tertiary and quaternary ammonium preservative compound and an organic phosphate fire retardant compound.

摘要翻译： 通过用由三级和季铵防腐化合物的水溶性混合物和有机磷酸酯阻燃化合物组成的处理溶液浸渍产品，将木材和纤维素材料赋予耐腐蚀性和阻燃性的一步法。