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1. 发明授权

US5503024A Apparatus for testing lumber stiffness 失效
标题翻译：用于测量木材刚度的装置
公开(公告)号：US5503024A
公开(公告)日：1996-04-02
申请号：US363660
申请日：1994-12-22
申请人： Friend K. Bechtel , Ronnie K. Byers , James D. Logan , James R. Allen , Michael G. Strevy , Daniel A. Uskoski
发明人： Friend K. Bechtel , Ronnie K. Byers , James D. Logan , James R. Allen , Michael G. Strevy , Daniel A. Uskoski
IPC分类号： G01N3/20 , G01N33/46
CPC分类号： G01N3/20 , G01N33/46
摘要： Improved apparatus is described for measuring bending stiffness of dimension lumber. Innovative details are introduced that make the measurement more accurate and repeatable as well as making the apparatus simpler, more robust and easier to maintain than the prior art.
摘要翻译：描述了用于测量尺寸木材的弯曲刚度的改进的装置。引入了创新的细节，使得测量更加准确和可重复，以及使装置比现有技术更简单，更坚固和更容易维护。

2. 发明授权

US5654643A Dielectric sensor apparatus 失效
标题翻译：介质传感器装置
公开(公告)号：US5654643A
公开(公告)日：1997-08-05
申请号：US320950
申请日：1994-10-11
申请人： Friend K. Bechtel , James R. Allen , Daniel A. Uskoski
发明人： Friend K. Bechtel , James R. Allen , Daniel A. Uskoski
IPC分类号： G01N27/02 , G01N27/22 , G01N33/46 , G01R27/26
CPC分类号： G01N27/02 , G01N33/46 , G01R27/2641 , G01N27/221 , G01N27/223
摘要： Method and apparatus are described for obtaining information about the real and imaginary parts of permittivity in dielectric materials and relating this information to other properties of the materials.
摘要翻译：描述了用于获得关于电介质材料中的介电常数的实部和虚部的信息的方法和装置，并将该信息与材料的其它性质相关联。

3. 发明授权

US5394097A Dielectric sensor 失效
标题翻译：介质传感器
公开(公告)号：US5394097A
公开(公告)日：1995-02-28
申请号：US982079
申请日：1992-11-24
申请人： Friend K. Bechtel , James R. Allen , Daniel A. Uskoski
发明人： Friend K. Bechtel , James R. Allen , Daniel A. Uskoski
IPC分类号： G01N27/02 , G01N27/22 , G01N33/46 , G01R27/26
CPC分类号： G01N27/02 , G01N33/46 , G01R27/2641 , G01N27/221 , G01N27/223
摘要： Method and apparatus are described for obtaining information about the real and imaginary parts of permittivity in dielectric materials and relating this information to other properties of the materials.
摘要翻译：描述了用于获得关于电介质材料中的介电常数的实部和虚部的信息的方法和装置，并将该信息与材料的其它性质相关联。

4. 发明授权

US4972154A Apparatus and method for measuring wood grain angle 失效
标题翻译：用于测量木纹角度的装置和方法
公开(公告)号：US4972154A
公开(公告)日：1990-11-20
申请号：US362956
申请日：1989-06-06
申请人： Friend K. Bechtel , James R. Allen , James D. Logan
发明人： Friend K. Bechtel , James R. Allen , James D. Logan
IPC分类号： G01N27/22 , G01N33/46
CPC分类号： G01N33/46 , G01N27/221
摘要： Wood grain angle information is detected electronically by use of a sensor having a common electrode and a plurality of electrodes spaced from the common electrode and arranged angularly about a sensor axis. The common electrode can serve as a sense electrode or as a drive electrode for the remaining angularly spaced electrodes. By modulating applied drive signals and demodulating the sensed signals that result from capacitive coupling of an adjacent wood specimen, values that are a function of wood grain angle are identified.
摘要翻译：通过使用具有公共电极的传感器和与公共电极间隔开的多个电极并且绕传感器轴线成角度地布置来检测木纹角度信息。公共电极可以用作感测电极或用作剩余的有角度间隔的电极的驱动电极。通过调制施加的驱动信号并解调由相邻的木材样品的电容耦合产生的感测信号，确定了作为木纹角度的函数的值。

5. 发明授权

US5237870A Stress wave method and apparatus for estimating the structural quality of finger joints 失效
标题翻译：用于估计手指关节结构质量的应力波方法和装置
公开(公告)号：US5237870A
公开(公告)日：1993-08-24
申请号：US764500
申请日：1991-09-20
申请人： Ray L. Fry , Friend K. Bechtel , James D. Logan
发明人： Ray L. Fry , Friend K. Bechtel , James D. Logan
IPC分类号： G01N3/00 , G01N3/20 , G01N29/12 , G01N29/24 , G01N33/46
CPC分类号： G01N29/2493 , G01N29/12 , G01N3/20 , G01N33/46 , G01N2203/0017 , G01N2203/0019 , G01N2203/0021 , G01N2291/0238 , G01N2291/0421 , G01N2291/0422
摘要： Method and apparatus are described for using stress wave measurements in the estimation of quality of finger joints in wood and quality of lumber, where quality is typically defined as strength. Application and measurement of stress waves in the transverse direction of the material allows localized measurements to be made, and features developed from this information are used in the quality estimation. A feature is a quantifiable characteristic developed from stress wave signals which can be used either by itself or in combination with other features to estimate quality. Examples of features include the propagation velocity of a stress wave, the attenuation of a stress wave, the difference in stress wave propagation times measured at different locations along the lumber, and the effects on amplitude and phase of frequency components of a stress wave. Treating features together as a feature vector and as input to an estimator function, estimated quality can be evaluated. The ability of the method and apparatus can be improved in some cases by performing the stress wave measurements in the presence of externally applied bending, tensile or torsional stress.
摘要翻译：描述了使用应力波测量来估计木材中的手指关节质量和木材质量的方法和装置，其中质量通常被定义为强度。应力波在材料横向上的应用和测量允许进行局部测量，并且在该质量估计中使用从该信息开发的特征。特征是从应力波信号开发的可量化特征，其可以单独使用或与其他特征组合使用以估计质量。特征的示例包括应力波的传播速度，应力波的衰减，沿着木材的不同位置测量的应力波传播时间的差异以及对应力波的频率分量的振幅和相位的影响。将特征一起处理为特征向量，并将其作为估计函数的输入，可以评估估计的质量。在某些情况下，通过在存在外部施加的弯曲，拉伸或扭转应力的情况下进行应力波测量，可以提高该方法和装置的能力。

6. 发明授权

US4926350A Non-destructive testing methods for lumber 失效
标题翻译：木材无损检测方法
公开(公告)号：US4926350A
公开(公告)日：1990-05-15
申请号：US96922
申请日：1987-09-14
申请人： Friend K. Bechtel , James R. Allen
发明人： Friend K. Bechtel , James R. Allen
IPC分类号： G01N33/46
CPC分类号： G01N33/46
摘要： A non-destructive testing system for lumber involves measurement of grain angle about a board and transformation of the measured grain angle values to extract features indicative of knot identification, grain angle perturbations or strength of the board. Individual boards can then be processed for grading or sorting purposes as a function of the extracted features. Specific features utilized for knot identification are curl, divergence, and novel transformations termed gradient, edges and knots, as well as various pattern matching techniques. Strength estimation involves transformations pertaining to failure distance, which is a function of board tensile strength. Failure distance can be computed by an ellipsoidal model, a search model or a tracks model. When utilized in conjunction with conventional bending test procedures, highly accurate strength estimation is achieved by the described system.
摘要翻译：用于木材的非破坏性测试系统涉及测量关于板的晶粒角度和测量的晶粒角度值的变换，以提取指示结点识别，晶粒角度扰动或板的强度的特征。然后可以根据所提取的特征对单独的板进行处理以进行分级或分类。用于结识别的特定特征是卷曲，发散和称为梯度，边缘和结的新颖变换以及各种模式匹配技术。强度估计涉及与故障距离有关的变换，这是板抗拉强度的函数。故障距离可以通过椭球模型，搜索模型或轨道模型来计算。当与常规弯曲测试程序结合使用时，通过所描述的系统实现高度精确的强度估计。

7. 发明授权

US4932267A Flexure coupling 失效
标题翻译：挠性联轴器
公开(公告)号：US4932267A
公开(公告)日：1990-06-12
申请号：US368172
申请日：1989-06-19
申请人： Friend K. Bechtel
发明人： Friend K. Bechtel
IPC分类号： G01N3/20 , G01N33/46
CPC分类号： G01N3/20 , G01N33/46
摘要： A flexure coupling includes a backing plate and an adjacent hub, the backing plate being adapted to be mounted to a first machine member and the hub being adapted to be mounted to a second machine member. The hub is supported on the backing plate by a plurality of equiangularly positioned radial springs that permit compliant torsional movement of the hub relative to the backing plate. The springs prevent relative axial or longitudinal translational movement between the hub and backing plate, as well as relative radial movement. Substitution of the flexure coupling for conventional bearings eliminates the problem of false brinelling that results from vibration of stationary bearings.
摘要翻译：挠性联轴器包括背板和相邻的轮毂，所述背板适于安装到第一机器构件，并且所述轮毂适于安装到第二机器构件。轮毂通过多个等角度定位的径向弹簧支撑在背板上，这些径向弹簧允许轮毂相对于背板的柔顺的扭转运动。弹簧防止轮毂和背板之间的相对轴向或纵向平移运动以及相对的径向运动。替代传统轴承的挠性联轴节消除了固定轴承的振动引起的假勃氏硬度的问题。

8. 发明授权

US07108249B2 T-post extender and high fence support 有权
标题翻译： T型扩展器和高围栏支撑
公开(公告)号：US07108249B2
公开(公告)日：2006-09-19
申请号：US10789202
申请日：2004-02-27
申请人： Friend K. Bechtel
发明人： Friend K. Bechtel
IPC分类号： E04H17/00
CPC分类号： E04H17/04 , E04H17/24 , Y10S256/05
摘要： High fence supports can be expensive, difficult to ship, and awkward to install. Often, and particularly for the control of deer, it is desirable to increase the height of existing fence that uses steel T-posts for support. The T-post extender combined with a steel T-post becomes a high fence support useful for supporting high fence. A T-post extender consists of a longitudinal element, typically a length of steel rebar, and a stop element, typically a washer welded to the longitudinal element at a selected location along its length. For existing T-post fence supports, the T-post extender is slipped into place alongside the top of the T-post where it is captured laterally by existing wire ties and vertically by the stop element resting against the top of the T-post under the force of gravity. This arrangement has cost, installation, and shipping advantages both in new high fence construction and in the case where the height of existing T-post supported fence must be increased.
摘要翻译：高篱笆支撑可能是昂贵的，难以出货，笨拙的安装。通常，特别是为了控制鹿，期望增加使用钢T型支柱用于支撑的现有围栏的高度。 T型钢筋扩展件结合钢T型钢筋成为支撑高围栏的高围护支架。 T形延伸器由纵向元件（通常为一定长度的钢筋）和止动元件构成，该止动元件通常是沿其长度在选定位置处焊接到纵向元件的垫圈。对于现有的T型篱笆支撑，T型柱延伸器在T型柱顶部滑动到位，在T顶部的顶部被现有的线束横向捕获，并且垂直地由停止元件靠在T形柱的顶部下方重力。这种安排在新的高围栏施工中以及必须增加现有T型支撑围栏的高度的情况下，具有成本，安装和运输优点。

9. 发明授权

US5625996A Fire resistant wood box beam 失效
标题翻译：防火木箱梁
公开(公告)号：US5625996A
公开(公告)日：1997-05-06
申请号：US519790
申请日：1995-08-28
申请人： Friend K. Bechtel
发明人： Friend K. Bechtel
IPC分类号： E04B1/94 , E04B9/00 , E04C3/12 , E04C3/18 , E04C3/29
CPC分类号： E04C3/291 , E04B1/943 , E04B9/005 , E04C3/12 , E04C3/18
摘要： A box beam has an interior and an exterior. Fire resistance is obtained by preventing the rapid progression of fire from the exterior to the interior. Fire resistant covers for the web elements and sufficiently sized wood flanges protect the interior of the beam, thus giving it improved fire safety. In some instances, longitudinal reinforcement elements embedded in protected areas of the flanges are desirable to provide additional stiffness and strength.
摘要翻译：箱梁具有内部和外部。通过防止火灾从外部到内部的快速进展获得耐火性。腹板元件和足够尺寸的木制法兰的防火盖保护梁的内部，从而提高了消防安全性。在一些情况下，嵌入法兰的保护区域中的纵向加强元件是期望的，以提供额外的刚度和强度。

10. 发明授权

US4627293A Apparatus for tension testing of lumber 失效
标题翻译：木材张力试验装置
公开(公告)号：US4627293A
公开(公告)日：1986-12-09
申请号：US783469
申请日：1985-10-03
申请人： Friend K. Bechtel
发明人： Friend K. Bechtel
IPC分类号： G01N3/04 , G01N3/08
CPC分类号： G01N3/04 , G01N3/08
摘要： A lumber testing apparatus incorporates opposed wedges to simultaneously exert tension and clamp forces on boards being tested. The inclined wedge surfaces utilize bearing materials and wedge angles selected to match the required clamp forces to tension forces on each board, without crushing the boards at high loads. This is accomplished by using bearing materials having a variable coefficient of friction under varying load conditions.
摘要翻译：木材测试装置包含相对的楔形件，以同时对被测试的板材施加张力和夹紧力。倾斜的楔形表面利用轴承材料和楔形角度来选择，以匹配所需的夹紧力与每个板上的张力，而不会在高负载下破坏板。这是通过使用在变化的负载条件下具有可变摩擦系数的轴承材料来实现的。

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