公开(公告)号：US4869699A

公开(公告)日：1989-09-26

申请号：US302377

申请日：1989-01-27

Applicant: Eric D. Plambeck ,  Thomas A. Walker ,  Randall W. Karr

Inventor： Eric D. Plambeck ,  Thomas A. Walker ,  Randall W. Karr

IPC: A63H33/18 ,  A63H33/42

CPC classification number: A63H33/425 ,  A63H33/18

Abstract: A flying disk toy comprising a substantially planar disk configured to rotate about a central axis in sustained flight and a centrifugally activated sound generator associated with the disk is disclosed. The disk includes a cylindrical wall perpendicularly projecting from the plane of the disk and which is centrally disposed on the disk relative to its central axis. The centrifugally activated sound generator comprises two diametrically opposed centrifugal switches in series connection, each comprising a radially extending, axially inclined ramp, a pair of electrical contacts symmetrically disposed on opposite sides of the ramp in spaced apart relationship and an electrically conductive weight movably supported on the ramp. The weight has a diameter greater than the minimum spacing of the electrical contacts and centrifugal force resulting from the rotation of the disk in flight causes the weight to displace into both electrical contacts, thereby establishing an electrical closed circuit and energizing the sound generator.

Abstract translation: 公开了一种飞盘玩具，其包括构造成围绕持续飞行中的中心轴线旋转的基本上平面的盘，以及与盘相关联的离心致动的声音发生器。 盘包括从盘的平面垂直地突出并且相对于其中心轴居中放置在盘上的圆柱形壁。 离心激活的声音发生器包括两个直径相对的离心开关串联连接，每个离心开关包括径向延伸的轴向倾斜斜面，一对电触点对称地设置在间隔开的关系的斜面的相对侧上，导电重量可移动地支撑在 斜坡 重量的直径大于电触头的最小间距，并且由于在飞行中的盘的旋转而产生的离心力导致重量移位到两个电触点中，从而建立电闭合电路并激励声发生器。

公开(公告)号：US4852669A

公开(公告)日：1989-08-01

申请号：US191374

申请日：1988-05-09

Applicant: Thomas A. Walker

Inventor： Thomas A. Walker

IPC: E21B4/02 ,  E21B4/14 ,  E21B4/16 ,  E21B7/06

CPC classification number: E21B4/14 ,  E21B4/02 ,  E21B4/16 ,  E21B7/068

Abstract: An apparatus is provided whereby a standard percussive-type downhole drill may be utilized in directional drilling. This eliminates the need for less efficient tri-cone type downhole motors in this application. A motor is provided directly on top of the hammer at the end of the drill string, which both rotates the hammer and allows the passage of compressed air to the hammer for its piston operation. A preferred embodiment of the motor is an air-driven turbine with a replaceable connecting subassembly to link the motor shaft to the hammer apparatus.

Abstract translation: 提供了一种设备，由此可以在定向钻井中使用标准的冲击式井下钻机。 在这种应用中，这不需要更低效的三锥型井下电机。 在钻柱的末端，马达直接设置在锤的顶部，这两个旋转锤都允许压缩空气通过锤子进行活塞运动。 电动机的优选实施例是具有可更换连接子组件以将电动机轴连接到锤装置的空气驱动涡轮机。

公开(公告)号：US3978421A

公开(公告)日：1976-08-31

申请号：US527754

申请日：1974-11-27

Applicant: Thomas A. Walker

Inventor： Thomas A. Walker

IPC: G10H1/043 ,  G10H1/16 ,  G10K15/12 ,  H03G5/10 ,  H03F3/68

CPC classification number: H03G5/10 ,  G10H1/043 ,  G10H1/16 ,  G10K15/12 ,  G10H2210/201 ,  G10H2210/281

Abstract: An electrical musical instrument amplifier is disclosed in which a signal which has been provided by an instrument to a second one of two different preamplifiers for amplification therein is passed to one of the inputs of a summing amplifier together with the output of the first preamplifier, the output of the summing amplifier being coupled through a tube driven power amplifier to a loudspeaker system. The amplified signal from the second preamplifier is applied to a second input of the summing amplifier via a circuit arranged as a voltage divider and having a variable resistance provided by a field effect transistor driven by an oscillator. The modulation provided by the field effect transistor and associated oscillator can be adjusted to provide total phase reversal as well as amplitude modulation when combined with the signal at the output of the second preamplifier, to provide a tremolo or vibrato effect. Improved reverberation control is provided by a control common to the volume controls of both a delayed reverberation signal from the second preamplifier and the combined signal which results when the instrument signal from the second preamplifier is combined with the delayed reverberation signal. The power amplifier can be operated in a distortion mode to achieve desirable harmonics without overloading the voice coils in an attached speaker system through use of a power supply which applies reduced voltages to the power amplifier whenever the gain of the power amplifier is adjusted to a high setting while at the same time regulating the voltage applied to the first and second preamplifiers to keep such voltage constant.

公开(公告)号：US07389833B2

公开(公告)日：2008-06-24

申请号：US11422625

申请日：2006-06-07

Applicant: Thomas A. Walker ,  Richard K. Smith, Jr. ,  Stephen R. Means

Inventor： Thomas A. Walker ,  Richard K. Smith, Jr. ,  Stephen R. Means

IPC: E21B10/36

CPC classification number: E21B10/36 ,  E21B10/62 ,  E21B17/046

Abstract: A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in travel by means of retaining members.

Abstract translation: 一种用于在地层中钻孔的多截面冲击钻头组件，主要与气动冲击装置一起使用。 钻头组件由容易拆卸的钻头构成，该钻头由凸耳和凹槽结构旋转驱动，并通过保持构件轴向限制行进。

公开(公告)号：US4636775A

公开(公告)日：1987-01-13

申请号：US599720

申请日：1984-04-12

Applicant: James P. Burgess ,  John C. Echols ,  Thomas A. Walker

Inventor： James P. Burgess ,  John C. Echols ,  Thomas A. Walker

IPC: G08B13/00

CPC classification number: G08B13/00

Abstract: An alarm condition sensor for triggering a signal incorporated in an alarm system and adapted to be mounted on a motor vehicle or other object to protect it against burglary, theft, tampering, or the like. The sensor comprises a sensing mass mounted atop a deformable substrate equipped with piezoelectric material operable to generate a signal voltage upon stressing or deformation of the substrate in response to forces effecting relative movement between the mass and the substrate. The sensor may be mounted on a cantilever spring support which enables the mass to move and thereby stress the substrate and generate a signal voltage. Voltage sensitive means responsive to voltages generated by the piezoelectric material is operable to trigger the alarm system. The sensitivity of the sensor is adjustable to vary the threshold value of the voltage operable to activate the alarm.

Abstract translation: 一种用于触发结合在报警系统中并适于安装在机动车辆或其他物体上的信号的报警条件传感器，以防止其被盗窃，盗窃，篡改等。 传感器包括安装在可变形基板顶部的感测质量，该可变形基底配备有压电材料，该压电材料可操作以响应于影响质量块和基底之间的相对运动的力而在衬底的应力或变形时产生信号电压。 传感器可以安装在悬臂弹簧支撑件上，这使得质量块移动，从而使衬底受到压力并产生信号电压。 响应于由压电材料产生的电压的电压敏感装置可操作以触发报警系统。 传感器的灵敏度可调，以改变可操作以激活报警的电压的阈值。

公开(公告)号：US07419017B2

公开(公告)日：2008-09-02

申请号：US11563350

申请日：2006-11-27

Applicant: Thomas A. Walker ,  Richard Smith ,  Stephen R. Means

Inventor： Thomas A. Walker ,  Richard Smith ,  Stephen R. Means

IPC: E21B10/36

CPC classification number: E21B10/62 ,  E21B10/36

Abstract: A multi-sectional percussive drill bit assembly for drilling holes in earth formation primarily used in conjunction with a pneumatic percussive device. The drill bit assembly is comprised of an easily removable bit that is rotationally driven by a lug and pocket structure and axially limited in travel by means of retaining members.

公开(公告)号：USRE35940E

公开(公告)日：1998-10-27

申请号：US604381

申请日：1996-02-21

Applicant: Thomas J. Heinz ,  Thomas A. Walker ,  Eric D. Plambeck

Inventor： Thomas J. Heinz ,  Thomas A. Walker ,  Eric D. Plambeck

IPC: A61F5/02 ,  A61F5/00

CPC classification number: A61F5/028

Abstract: A back brace apparatus disclosed which has electromechanical means for tightening a brace around the trunk of a patient to a desired tension. The electromechanical means is controllable by the patient to effect predetermined tension settings. A cable and pulley arrangement tightened by a motor provides a mechanical advantage so that the brace may be tightened by a small motor. A microprocessor controls the motor to obtain the desired repeatable tension settings.

Abstract translation: 公开了一种后支撑装置，其具有用于将患者的躯干周围的支架紧固到期望的张力的机电装置。 机电装置由患者控制以实现预定的张力设置。 由电动机紧固的电缆和滑轮装置提供机械优点，使得支架可以由小电动机紧固。 微处理器控制电机以获得所需的可重复张力设置。

公开(公告)号：US5226874A

公开(公告)日：1993-07-13

申请号：US714785

申请日：1991-06-13

Applicant: Thomas J. Heinz ,  Thomas A. Walker ,  Eric Plambeck

Inventor： Thomas J. Heinz ,  Thomas A. Walker ,  Eric Plambeck

IPC: A61F5/02

CPC classification number: A61F5/028

Abstract: A corset-type back brace apparatus is disclosed which has electromechanical means for tightening a corset around the trunk of a patient to a desired tension. The electromechanical means includes a pair of motor driven rollers which are controllable by the patient to effect predetermined tension settings.

Abstract translation: 公开了一种紧身胸衣式后支撑装置，其具有用于将围绕患者躯干的紧身胸衣紧固到期望张力的机电装置。 机电装置包括一对电动从动辊，其可由患者控制以实现预定的张力设置。