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1. 外观设计

USD381542S Folding chair with three legs 失效
公开(公告)号：USD381542S
公开(公告)日：1997-07-29
申请号：US54162
申请日：1996-05-06
申请人： Donald F. Gray
设计人： Donald F. Gray

2. 发明授权

US5571997A Pressure sensitive pointing device for transmitting signals to a tablet 失效
标题翻译：用于将信号传输到平板电脑的压敏指示装置
公开(公告)号：US5571997A
公开(公告)日：1996-11-05
申请号：US101442
申请日：1993-08-02
申请人： Donald F. Gray , Michael M. Malkin
发明人： Donald F. Gray , Michael M. Malkin
IPC分类号： G06F3/033 , G08C21/00 , G09G3/02 , H04L15/08
CPC分类号： G06F3/03545
摘要： A pressure sensitive pointing device or pen is described for use with an electronic tablet that determines the position of the pointing device on the surface of the tablet. The pointing device incorporates a variable reluctance circuit responsive to the force exerted on the pen point for modulating a radiating frequency, emanating from the pen, in proportion to the force.
摘要翻译：描述了压敏指示装置或笔用于确定指示装置在图形表面上的位置的电子数位板。指向装置包括可变磁阻电路，其响应于施加在笔尖上的力，用于调制与笔成比例地从笔发出的辐射频率。

3. 发明授权

US5332283A Three legged folding chair 失效
标题翻译：三腿折叠椅
公开(公告)号：US5332283A
公开(公告)日：1994-07-26
申请号：US910684
申请日：1992-07-08
申请人： Donald F. Gray
发明人： Donald F. Gray
IPC分类号： A47C9/10 , A47C4/00
CPC分类号： A47C4/52 , A47C4/18
摘要： The folding chair (10) includes V-shaped main support frame (12) with an apex (28) and two legs (22 and 24) with free ends. A V-shaped seat support frame (14) has an apex (40) and two arms (34 and 36) with free ends. The V-shaped seat support frame (14) is pivotally attached to the main support frame (12) by pivot pins (48 and 50) which allow pivotal movement between a position in which both V-shaped frames (12 and 14) are in a common plane and a position in which the seat support frame (14) is in a plane that is generally perpendicular to the plane through the main support frame (12). A third leg (16) is pivotally attached to the V-shaped main support frame (12) near its apex. The third leg (16) is connected to the apex portion (40) of the V-shaped seat support frame (14) by a pin member (66) and holds the seat support frame in a fixed position relative to the V-shaped main support frame. The pin (66) is removed to allow both V-shaped support frames (12 and 14) and the third leg (16) to fold flat and into a common plane. A back rest (20) is secured to the apex (40) of the V-shaped main support frame (12). A support seat (18) is attached to the free ends of the arms (34 and 36). The pivot pins (48 and 50) pass through conical bores (52 and 54). Shoulder straps (86 and 88) are provided for carrying the chair (10). Hooks (94) can be provided for attaching a backpack to the chair and carrying brackets (96) can be provided for attaching other equipment to the chair.
摘要翻译：折叠椅（10）包括具有顶点（28）和具有自由端的两个腿（22和24）的V形主支撑框架（12）。 V形座椅支撑框架（14）具有顶点（40）和具有自由端的两个臂（34和36）。 V形座椅支撑框架（14）通过枢转销（48和50）可枢转地附接到主支撑框架（12），这些销钉允许在两个V形框架（12和14）位于其中的位置之间枢转运动公共平面和座椅支撑框架（14）位于大致垂直于通过主支撑框架（12）的平面的平面中的位置。第三腿（16）在其顶点附近枢转地附接到V形主支撑框架（12）。第三腿（16）通过销构件（66）连接到V形座椅支撑框架（14）的顶点部分（40），并将座椅支撑框架相对于V形主体支持框架。销（66）被移除以允许两个V形支撑框架（12和14）和第三腿部（16）折叠成平坦的共同平面。靠背（20）固定在V形主支架（12）的顶点（40）上。支撑座（18）附接到臂（34和36）的自由端。枢轴销（48和50）穿过锥形孔（52和54）。肩带（86和88）用于承载椅子（10）。可以提供钩子（94）用于将背包附接到椅子上，并且可以提供携带支架（96）以将其他设备附接到椅子上。

4. 发明授权

US5218174A Low power cordless magnetic field digitizer with differential grid sensing and synchronous position demodulation 失效
标题翻译：低功率无绳磁场数字化仪，具有差分电网感测和同步位置解调功能
公开(公告)号：US5218174A
公开(公告)日：1993-06-08
申请号：US771369
申请日：1991-10-01
申请人： Donald F. Gray , James L. Rodgers , James R. Sciacero , Charles A. Waterbury
发明人： Donald F. Gray , James L. Rodgers , James R. Sciacero , Charles A. Waterbury
IPC分类号： G06F3/041 , G06F3/033 , G06F3/046 , H03B1/00 , H03B5/12
CPC分类号： G06F3/046 , H03B5/1215 , H03B5/1231 , H03B5/1243 , H03B5/1265 , H03B2200/0098 , H03B2201/0208
摘要： A digitizing system includes a tablet and a cordless pointing device including a plurality of data grid conductors in the tablet and a plurality of clock grid conductors in the tablet, all receiving a magnetic field signal transmitted by the pointing device. A data channel circuit includes a differential amplifier and demodulating and filtering circuitry coupled to an output of the differential amplifier, having a clock input. An A/D converter has an input coupled to an output of the demodulating and filtering circuitry. Multiplexing circuitry selectively couples various grid conductor signals to the data channel circuit. A clock recovery circuit responsive to the clock grid conductors includes a phase-locked-loop circuit that generates a recovered clock signal which is synchronous with the magnetic field signal and is used as a reference for demodulating the phase and amplitude of signals multiplexed from the data grid conductors to the data channel circuit. Accurate determination of the pointer tip position is achieved simultaneously with accurate decoding of pointer commands represented by shifts in the frequency of the magnetic field signal.
摘要翻译：数字化系统包括平板电脑和无线指示设备，其包括平板电脑中的多个数据网格导体和平板电脑中的多个时钟网格导体，全部接收由指示设备发送的磁场信号。数据通道电路包括差分放大器和耦合到差分放大器的输出的解调和滤波电路，具有时钟输入。 A / D转换器具有耦合到解调和滤波电路的输出的输入。多路复用电路将各种电网导体信号选择性地耦合到数据通道电路。响应于时钟网格导体的时钟恢复电路包括产生与磁场信号同步的恢复时钟信号的锁相环电路，并且用作解调从数据复用的信号的相位和幅度的参考电网导体到数据通道电路。与由磁场信号的频率偏移表示的指针指令的精确解码同时实现指针尖端位置的精确确定。

5. 外观设计

USD846060S1 Fishing lure 有权
公开(公告)号：USD846060S1
公开(公告)日：2019-04-16
申请号：US29636813
申请日：2018-02-12
申请人： Donald F. Gray
设计人： Donald F. Gray
摘要： FIG. 1 is a top perspective view of one embodiment of a fishing lure showing the new design;
FIG. 2 is a bottom view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is an end view thereof;
FIG. 5 is an opposite end view thereof;
FIG. 6 is a right side view thereof:
FIG. 7 is a left side view thereof;
FIG. 8 is a top perspective view of another embodiment of a fishing lure showing the new design;
FIG. 9 is a bottom view thereof;
FIG. 10 is an top view thereof;
FIG. 11 is an end view thereof;
FIG. 12 is a opposite end view thereof:
FIG. 13 is a left side view thereof; and,
FIG. 14 is a right side view thereof.

6. 发明授权

US5954391A Stable three legged folding chair 失效
标题翻译：稳定的三腿折叠椅
公开(公告)号：US5954391A
公开(公告)日：1999-09-21
申请号：US73480
申请日：1998-05-06
申请人： Donald F. Gray
发明人： Donald F. Gray
IPC分类号： A47C9/10 , A47C4/00
CPC分类号： A47C4/18 , A47C7/008
摘要： The three-legged folding chair has a primary frame with two legs and an apex, a secondary frame with two arms and an apex, and a third leg. The secondary frame is pivotally attached to the primary frame by two pivot pins. A back rest is secured to the primary frame adjacent to the primary frame apex. A support seat is attached to the arms of the secondary frame and are spaced from the secondary frame apex. The third leg is connected to the backrest adjacent to the primary frame apex. The apex of the secondary frame is held in a use position by the third leg. The secondary frame intersects the primary frame at an angle of about 66.degree. when held by the third leg. Both pivot pins are held out of axial alignment with each other when in the use position. The ground contact ends of the primary frame legs are under the forward edge of the support seat, the third leg is relatively short and weight is transferred to the third leg. The backrest is spaced forwardly from the primary frame apex.
摘要翻译：三脚折叠椅具有两个腿和顶点的主框架，具有两个臂和顶点的辅助框架和第三腿部。辅助框架通过两个枢轴销枢转地附接到主框架。靠背与主框架顶点相邻地固定在主框架上。支撑座附接到辅助框架的臂并且与副框架顶点间隔开。第三腿连接到靠近主框架顶点的靠背。辅助框架的顶点由第三条腿保持在使用位置。当由第三支腿保持时，副框架以大约66°的角度与主框架相交。当使用位置时，两个枢轴销都彼此轴向对准。主框架腿的接地端部位于支撑座的前边缘下方，第三腿部相对较短，重量被传递到第三腿部。靠背与主框架顶点间隔开。

7. 发明授权

US5445109A Selective bird feeder 失效
标题翻译：选择性鸟饲料
公开(公告)号：US5445109A
公开(公告)日：1995-08-29
申请号：US274989
申请日：1994-07-13
申请人： Donald F. Gray , Louis N. Sparling
发明人： Donald F. Gray , Louis N. Sparling
IPC分类号： A01K39/01
CPC分类号： A01K39/0113
摘要： The selective bird feeder (10) has a bird feed container (12) and a bird feed container cover (70). The bird feed container (12) has an open top (24 ) and bird feed access openings ( 32 ) . The bird feed container cover has a roof (72) and outer walls (76, 79, 80, and 82). Bird perch assemblies (84, 86) are attached to the outer walls (78, 82). A spring follower (74) with a vertical bore (94) is integral with the bird feed container cover (70). A vertical tube (48) is secured to the bird feed container (12) and extends upward through the vertical bore (94). A cap (108) is attached to the vertical tube (48) by a pin (110). A coil compression spring (68), inside the vertical tube (48), exerts a force on an adjustable lower spring abutment (50) and spring abutment surfaces (104) and (106) on radial projections (96, 98) that are integral with the spring follower (74) and extend through vertical slots (100, 102) in the vertical tube. The coil compression spring (68) normally holds the roof (72) in sealing contact with a stop surface (122) on the cap (108). A large bird or other heavy animal on the bird feed container cover (70) or the bird perch assembly (84 or 86) compresses the coil compression spring (68), moves the bird feed container cover down and covers the bird feed access openings (32).
摘要翻译：选择性鸟饲料机（10）具有鸟饲料容器（12）和饲料容器盖（70）。鸟饲料容器（12）具有开口顶部（24）和鸟饲料进入口（32）。鸟饲料容器盖具有屋顶（72）和外壁（76,79,80和82）。鸟鲈鱼组件（84,86）附接到外壁（78,82）。具有垂直孔（94）的弹簧从动件（74）与鸟饲料容器盖（70）成一体。垂直管（48）固定在鸟饲料容器（12）上并向上延伸通过垂直孔（94）。帽（108）通过销（110）附接到垂直管（48）。在垂直管（48）内部的线圈压缩弹簧（68）对可调节的下弹簧基座（50）和在径向突起（96,98）上的弹簧邻接表面（104）和（106）施加力，与弹簧从动件（74）延伸并延伸穿过垂直管中的垂直槽（100,102）。线圈压缩弹簧（68）通常保持屋顶（72）与盖（108）上的止动表面（122）密封接触。鸟饲料容器盖（70）或鸟鲈鱼组件（84或86）上的大鸟或其他重物压缩线圈压缩弹簧（68），将鸟饲料容器盖向下移动并覆盖鸟饲料进入口 32）。

8. 发明授权

US5225637A Position resolving system 失效
标题翻译：位置解析系统
公开(公告)号：US5225637A
公开(公告)日：1993-07-06
申请号：US769447
申请日：1991-10-01
申请人： James L. Rodgers , Donald F. Gray , Billy C. Fowler
发明人： James L. Rodgers , Donald F. Gray , Billy C. Fowler
IPC分类号： G06F3/046 , G06F3/033 , G06F3/041 , G06F3/048
CPC分类号： G06F3/046
摘要： A position resolving system is described incorporating a cordless pointing instrument such as a pen having an oscillator and battery supply therein. Electromagnetic radiations from the pen are directed onto a tablet grid having a plurality of grid loops therein. When the pen is in contact with the tablet, signals of maximum amplitude are radiated; when the pen is raised out of contact with the tablet, signal radiation is maintained but at a decreased amplitude for a predetermined time and then reduced to zero. Each loop is formed of parallel conductors joined at one end thereof by an end conductor; each loop is placed adjacent corresponding loops in the X and in the Y directions. The electromagnetic radiations are non-coherently amplitude detected to select the grid loop in the X direction and the grid loop in the Y direction having the maximum amplitudes thereon. When an X loop and a Y loop are detected each of which have signal amplitudes thereon that are higher than the remaining X and Y loops, and wherein the signal amplitudes are above a predetermined threshold amplitude, the system subsequently scans selected loops in the vicinity of the max loops in accordance with automatically selected routines. The routines are selected in accordance with criteria that include pen speed, signal strength and pen location. The routines may either rely upon the signal strength on a subset of three grid loops in each of the X and Y directions or a subset of four grid loops in the X and Y directions.
摘要翻译：描述了一种位置分辨系统，其结合有诸如笔的无绳指示仪器，其中具有振荡器和电池供应。来自笔的电磁辐射被引导到其中具有多个格子环的平板格栅上。当笔与平板电脑接触时，辐射最大幅度的信号; 当笔升起与平板电脑不接触时，信号辐射被维持，但是在一个预定时间内以一个减小的幅度，然后减小到零。每个环由平行导体形成，其一端通过端导体连接; 每个环相邻于X和Y方向的相应环。电磁辐射是非相干振幅检测的，以选择X方向的电网环路和Y方向的电网环路，其上具有最大幅度。当检测到X环路和Y环路，其中每个信号具有高于剩余的X和Y环路的信号幅度，并且其中信号幅度高于预定阈值振幅时，系统随后扫描在根据自动选择的程序的最大循环。根据包括笔速度，信号强度和笔位置的标准来选择例程。这些例程可以依赖于在X和Y方向中的每一个中的三个网格环的子集上的信号强度或X和Y方向上的四个网格环的子集。

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