公开(公告)号：US4983453A

公开(公告)日：1991-01-08

申请号：US462300

申请日：1990-01-02

申请人： Frank C. Beall

发明人： Frank C. Beall

IPC分类号： B29C70/08 ,  B29C70/52

CPC分类号： B29C70/525 ,  B29C70/083 ,  B29K2105/0854 ,  B29K2105/101 ,  B29K2309/08 ,  B29K2711/126 ,  Y10T442/697 ,  Y10T442/698

摘要： The present invention is a composite pultruded product and the method for its manufacture. The product is made with a plurality of longitudinal glass roving strands. In addition, a cellulosic mat is used in association with the roving. The mat serves as a filler, or reinforcing filler, to ensure uniform resin distribution within the product even when the glass content is significantly reduced. The method can be carried out on convention pultrusion equipment with little or no modification. The cellulose fiber mats may be either air laid or wet laid and should have an ultimate moisture of 3% or less before being incorporated into the pultruded product.

摘要翻译： 本发明是一种复合拉挤制品及其制造方法。 该产品由多条纵向玻璃粗纱制成。 此外，与粗纱相关联地使用纤维素垫。 该垫用作填料或增强填料，以确保产品内部均匀的树脂分布，即使玻璃含量显着降低。 该方法可以对常规的拉挤成型设备进行很少或没有修改。 纤维素纤维垫可以是空气铺设的或湿式铺设的，并且在结合到拉挤制品中之前应该具有3％或更低的最终水分。

公开(公告)号：US4856334A

公开(公告)日：1989-08-15

申请号：US172719

申请日：1988-04-06

申请人： Dwayne M. Shearer ,  Richard C. Beetham ,  Frank C. Beall ,  John M. Rodgers

发明人： Dwayne M. Shearer ,  Richard C. Beetham ,  Frank C. Beall ,  John M. Rodgers

IPC分类号： G01N29/04 ,  G01N29/11 ,  G01N29/24 ,  G01N29/32 ,  G01N33/46 ,  G06Q99/00

CPC分类号： G01N33/46 ,  G01N29/11 ,  G01N29/2493 ,  G01N29/326 ,  G06Q99/00 ,  G01N2291/015 ,  G01N2291/0231 ,  G01N2291/0237 ,  G01N2291/048 ,  G01N2291/102

摘要： The invention is a method for the on-line nondestructive determination of the internal bond strength of composite panel products. The method involves impinging an ultrasound pulse against the panel by a first transducer and receiving a transmitted pulse at a second transducer. The received signal strength, temperature and panel thickness are entered into an algorithm from which the internal bond may be calculated. Preferably the receiving transducer is located on the opposite side of the panel and displaced somewhat from the first transducer. The inclusion of temperature and panel thickness as independent variables greatly improves the accuracy over that available from uncorrected ultrasound testing.

摘要翻译： 本发明是在线非破坏性测定复合板产品的内部结合强度的方法。 该方法包括通过第一换能器对面板施加超声脉冲，并在第二换能器处接收发射的脉冲。 接收的信号强度，温度和面板厚度被输入到可以从其计算内部键的算法中。 优选地，接收换能器位于面板的相对侧并且稍微偏离第一换能器。 将温度和面板厚度作为独立变量的含量大大提高了从未校正的超声波测试可用的准确度。

公开(公告)号：US4580233A

公开(公告)日：1986-04-01

申请号：US421624

申请日：1982-09-22

申请人： Robert S. Parker ,  Frank C. Beall

发明人： Robert S. Parker ,  Frank C. Beall

IPC分类号： G01N27/22 ,  G01N33/46 ,  G01N25/56 ,  G01R27/26

CPC分类号： G01N33/46 ,  G01N27/223

摘要： The present invention is a method for measurement of moisture in dielectric materials. It is particularly useful for lumber. In the preferred version, at least two alternating current signals whose frequencies differ by a factor of at least 10 are capacitively coupled to the material. The coupling electrodes are in bridge circuits whose unbalance is measured at each frequency. The temperature of the dielectric material is also determined. Bridge unbalance signals are separated and rectified and the voltages, as well as a temperature analog voltage, are entered into a microprocessor programmed with a suitable algorithm to calculate a temperature corrected moisture value. The method overcomes significant inaccuracies in moisture readings due to temperature dependency.

摘要翻译： 本发明是测定电介质材料中的水分的方法。 它对木材特别有用。 在优选版本中，至少两个频率相差至少为10的交流信号被电容耦合到该材料。 耦合电极在桥接电路中，其在每个频率处测量不平衡。 还确定介电材料的温度。 桥接不平衡信号被分离和整流，并且将电压以及温度模拟电压输入到用适当算法编程的微处理器中以计算温度校正水分值。 该方法克服了由于温度依赖性导致的湿度读数的严重不准确。

公开(公告)号：US06327910B1

公开(公告)日：2001-12-11

申请号：US09339971

申请日：1999-06-25

申请人： Frank C. Beall

发明人： Frank C. Beall

IPC分类号： G01N2900

CPC分类号： F26B25/185 ,  F26B25/22

摘要： Disclosed are an apparatus and a monitoring system and various methods for use in the drying of lumber that use disclosed apparatus. During drying lumber is arranged in multiple courses stacked one on top of the other with multiple wooden stickers substantially evenly spaced from each other between courses and extending across the full width of said stack. The present invention includes a special sticker for inclusion in place of one of the wooden stickers to monitor the AE from the stack and to ultrasonically excite the stack for other measurements. The special sticker in the simplest form, includes a body portion and an acoustic sensor with the body portion constructed of an acoustically conductive material that is sized similarly to a wooden sticker. Also disclosed is a monitoring system which includes a special sticker and signal processing and control electronics coupled to receive an AE signal from the special sticker for monitoring and controlling the drying cycle of the lumber. Additionally, an ultrasonic signal can be applied to the special sticker to excite the stack and then monitor the stack response from the special sticker. By inclusion of an acoustic sensor at both ends of a special sticker the point across the load at which the AE occurs can be determined by linear interplation of the signals received from both sensors. By applying an ultrasonic signal to a special sticker and comparing a response signal received from the special sticker, various characteristics and control features can be obtained to predict the end-point of the drying cycle, the contact integrity of the special sticker with the lumber, and the moisture content of the lumber.

摘要翻译： 公开了使用公开的装置的用于干燥木材的装置和监测系统以及各种使用的方法。 在干燥期间，木材被布置成多个层叠在一起的多个木板上，多个木质贴纸基本上彼此均匀间隔开，并且延伸穿过所述堆叠的整个宽度。 本发明包括一个特殊的贴纸，用于代替其中一个木制贴纸来监视来自堆叠的AE，并超声波激发堆叠以进行其他测量。 最简单形式的特殊贴纸包括主体部分和声传感器，其中主体部分由导电材料构成，其尺寸类似于木制贴纸。 还公开了一种监测系统，其包括特殊贴纸和信号处理和控制电子器件，其被耦合以从特殊贴纸接收AE信号，用于监测和控制木材的干燥周期。 另外，超声波信号可以应用于特殊的贴纸来激发堆叠，然后监视来自特殊贴纸的堆栈响应。 通过在特殊贴纸的两端包含声学传感器，可以通过从两个传感器接收的信号的线性插入来确定穿过AE发生的负载点。 通过对特殊贴纸施加超声波信号并比较从特殊贴纸接收到的响应信号，可以获得各种特征和控制特征，以预测干燥周期的终点，特殊贴纸与木材的接触完整性， 和木材的含水量。

公开(公告)号：US5176865A

公开(公告)日：1993-01-05

申请号：US622212

申请日：1990-11-30

申请人： Frank C. Beall ,  Johan D. Koppernaes

发明人： Frank C. Beall ,  Johan D. Koppernaes

IPC分类号： B29C70/52

CPC分类号： B29C70/523 ,  B29K2061/04

摘要： A composition, apparatus and method for making resin bonded composite pultruded products using a thermosetting resin is disclosed. The resin includes a condensation resin which has a high solids content. A pultrusion system includes reinforcing material supply, a pultrusion die adapted to be heated, injection device for injecting resin into the die, and pulling device for drawing product through the die. The method includes supplying strands of the reinforcing material to the die and grasping the strands with the pulling device, injecting a condensation-type monomer resin into the die to impregnate the reinforcing material within the die, and pulling the resin-impregnated strands through the die at a rate that permits the resin to condense to an essentially cured state by the time the composite product is withdrawn from the die. The die is a modular die such that various sections of the die may be selected as desired to change process parameters. The die is divided lengthwise into a plurality of regions or sections, typically comprising an entry section, a resin injection section, a transition section and a profile section, which are joined together to create the desired die characteristics. Also disclosed is an adaptation die to convert a conventional non-injection die into an injection die. The adaption die comprises an entry section, a resin injection section and a transition section adapted for connection to the conventional die.

摘要翻译： 公开了一种使用热固性树脂制备树脂粘合复合拉挤制品的组合物，设备和方法。 该树脂包括具有高固体含量的缩合树脂。 拉挤系统包括增强材料供应，适于被加热的拉挤模具，用于将树脂注入模具的注射装置和用于通过模具拉制产品的牵引装置。 该方法包括将增强材料的线材提供给模具并用牵引装置抓住股线，将缩合型单体树脂注入模具中以在模具内浸渍增强材料，并将树脂浸渍的股线拉过模具 以使得复合产品从模具中取出时允许树脂冷凝至基本固化状态的速率。 模具是模块化模具，使得可以根据需要选择模具的各个部分以改变工艺参数。 模具被纵向划分成多个区域或部分，通常包括进入部分，树脂注入部分，过渡部分和轮廓部分，它们连接在一起以产生所需的模具特性。 还公开了一种将常规非注射模具转换成注射模具的适配模具。 适配模具包括进入部分，树脂注射部分和适于连接到常规模具的过渡部分。

公开(公告)号：US4663860A

公开(公告)日：1987-05-12

申请号：US581942

申请日：1984-02-21

申请人： Frank C. Beall

发明人： Frank C. Beall

IPC分类号： F26B3/14 ,  F26B15/20 ,  F26B3/04

CPC分类号： F26B3/14 ,  F26B15/20

摘要： A vertical progressive lumber dryer has a plurality of vertically spaced functional zones through which lumber formed into units pass. Each unit rests atop a base and each layer of boards in the stack is separated by sticker means. Predetermined appropriate operating conditions are selected for the drying medium as well as other parts of the process. After a car has completed the last step within the dryer, it is removed and the dryed lumber sent for further processing.

摘要翻译： 垂直渐进式木材干燥器具有多个垂直间隔开的功能区，通过该功能区形成木材通过。 每个单元都放置在基座的顶部，堆叠中的每一层板都以贴纸方式分开。 为干燥介质以及工艺的其他部分选择预定的适当操作条件。 汽车完成烘干机最后一步后，将其取出，并将干燥的木材送出进一步处理。

公开(公告)号：US6029520A

公开(公告)日：2000-02-29

申请号：US169834

申请日：1998-10-09

申请人： Frank C. Beall ,  Li-Heng Chen

发明人： Frank C. Beall ,  Li-Heng Chen

IPC分类号： G01N29/11 ,  G01N29/22 ,  G01N29/32 ,  G01N29/34 ,  G01H1/00

CPC分类号： G01N29/345 ,  G01N29/11 ,  G01N29/227 ,  G01N29/326 ,  G01N29/343 ,  G01N29/346 ,  G01N29/348 ,  G01N2291/0238 ,  G01N2291/0251 ,  G01N2291/02827 ,  G01N2291/0422

摘要： The technology used in the present invention is acousto-ultrasonics (AU), in which a transmitted signal, at a controlled frequency is injected into a specimen with one transducer and received at another location by another transducer, permitting evaluation of the condition of the material in the signal path. In the experiments that were made using the present invention, the material within the press was a particleboard mat having the signal injected into the edge of one platen and received at the edge of the second platen. The AU signal received at the second platen is initially in response to pressure changes in the mat and subsequently follows the progression of internal bonding of the material. Since the propagated wave through the mat reacts to resin curing during the last phase of pressing, changes in material or press variables are reflected directly in shifts of the curve received at the second platen. By monitoring the AU response curve, the press can be manually or automatically controlled to open within a specific range of board properties, such as IB. Not only does the technology of the present invention permit the shortest possible press cycle, it also permits control over the desired internal bond of the boards. The technology can be used in many types of presses and can serve as a supervisory system for press performance to determine if any openings are degrading in heat transfer. Additionally, shifts in the AU response curve can alert the press operator to both trends and abrupt changes as they occur.

摘要翻译： 本发明中使用的技术是声超声波（AU），其中以受控频率将发射信号注射到具有一个换能器的样品中并由另一个换能器在另一位置处接收，允许评估材料的状况 在信号路径中。 在使用本发明制造的实验中，压机内的材料是具有注入到一个压板的边缘并被接收在第二压板的边缘的信号的刨花板垫。 在第二压板处接收的AU信号最初是响应于垫中的压力变化，随后跟随材料的内部粘合的进展。 由于通过垫的传播波在最后的压制阶段对树脂固化反应，材料或压力变量的变化直接反映在第二压板上接收的曲线的移动中。 通过监视AU响应曲线，可以手动或自动控制印刷机在特定范围内的纸张属性（如IB）中打开。 本发明的技术不仅允许最短的压力循环，还允许控制板的期望的内部粘合。 该技术可用于许多类型的压机，并且可以用作压力机性能的监控系统，以确定是否有任何开口在热传递中降级。 此外，AU响应曲线的变化可以使新闻操作员在发生趋势和突然变化时发出警报。

公开(公告)号：US4750368A

公开(公告)日：1988-06-14

申请号：US53929

申请日：1987-05-26

申请人： Dwayne M. Shearer ,  Richard C. Beetham ,  Frank C. Beall

发明人： Dwayne M. Shearer ,  Richard C. Beetham ,  Frank C. Beall

IPC分类号： G01N29/04 ,  G01N29/24 ,  G01N29/32 ,  G01N29/00

CPC分类号： G01N29/326 ,  G01N29/2493 ,  G01N2291/015 ,  G01N2291/0231 ,  G01N2291/0237 ,  G01N2291/048 ,  G01N2291/102

摘要： The invention is a method for the on-line nondestructive determination of the internal bond strength of composite panel products. The method involves impinging an ultrasound pulse against the panel by a first transducer and receiving a transmitted pulse at a second transducer. The received signal strength, temperature and panel thickness are entered into an algorithm from which the internal bond may be calculated. Preferably the receiving transducer is located on the opposite side of the panel and displaced somewhat from the first transducer. The inclusion of temperature and panel thickness as independent variables greatly improves the accuracy over that available from uncorrected ultrasound testing.

摘要翻译： 本发明是在线非破坏性测定复合板产品的内部结合强度的方法。 该方法包括通过第一换能器对面板施加超声脉冲，并在第二换能器处接收发射的脉冲。 接收的信号强度，温度和面板厚度被输入到可以从其计算内部键的算法中。 优选地，接收换能器位于面板的相对侧并且稍微偏离第一换能器。 将温度和面板厚度作为独立变量的含量大大提高了从未校正的超声波测试可用的准确度。