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1. 发明授权

US4098592A Temperature control system for chromatographic apparatus 失效
标题翻译：色谱仪温度控制系统
公开(公告)号：US4098592A
公开(公告)日：1978-07-04
申请号：US744730
申请日：1976-11-24
申请人： Robert C. Prescott , Roy P. Lindquist
发明人： Robert C. Prescott , Roy P. Lindquist
IPC分类号： G01N30/54 , G01N30/30 , G05D23/08 , G05D23/19 , B01D15/08
CPC分类号： G05D23/08 , G05D23/1925
摘要： A process chromatograph including a column for separating fluid samples into their individual components, and a density-responsive detector connected to the column output to produce a pressure signal representing the concentration of the separated components. The column and associated elements are contained within a thermally-insulated housing the interior spaces of which are heated and maintained at a set-point temperature by a temperature regulating system. Heat energy is supplied by steam to one section of a two-section tubular heat-exchanger. A stream of air is caused to flow through the other section and into the housing interior, to transfer heat thereto. The rate of heat transfer is automatically controlled by a thermostatic control which continuously adjusts the flow of air through the heat exchanger so as to maintain the interior temperature at a desired set-point.
摘要翻译：一种过程色谱仪，包括用于将流体样品分离成其各自组分的色谱柱，以及连接到色谱柱输出的浓度响应检测器，以产生表示分离成分浓度的压力信号。柱和相关元件包含在绝热壳体中，其内部空间通过温度调节系统被加热并保持在设定点温度。热能通过蒸汽供应到两节管式热交换器的一部分。使空气流流过另一部分并进入壳体内部，以将热量传递到壳体内部。通过恒温控制来自动控制传热速率，恒温控制器连续地调节通过热交换器的空气流，从而将内部温度保持在期望的设定点。

2. 发明授权

US4006624A Pneumatic chromatograph 失效
标题翻译：气动色谱仪
公开(公告)号：US4006624A
公开(公告)日：1977-02-08
申请号：US549930
申请日：1975-02-14
申请人： Raymond Annino , Robert C. Prescott , Edwin L. Karas , Richard W. Kalinoski
发明人： Raymond Annino , Robert C. Prescott , Edwin L. Karas , Richard W. Kalinoski
IPC分类号： G01N30/62 , G01N30/86 , G01N31/08
CPC分类号： G01N30/62 , G01N30/8658 , G01N2030/8886 , G01N30/8679 , Y10T137/86413
摘要： An all-pneumatic process chromatograph having a pneumatically-actuated sample-injection valve, an orifice connected in the column output line to develop a pressure signal corresponding to fluid density, a pneumatic amplifier for strengthening the pressure signal, and pneumatically-operated control means for developing a periodic sample-valve actuating signal and for selecting a particular peak of interest at a controllable time following injection of the sample. The pneumatic control means includes means automatically operable to adjust the time of peak selection in response to changes in actual peak elution time. The temperature-sensitive elements of the apparatus are contained in a chamber which is heated by a source of steam heat, with the rate of heat transfer being regulated pneumatically to maintain a relatively constant temperature within the chamber.
摘要翻译：全气动加工色谱仪，具有气动致动的样品注射阀，连接在色谱柱输出管线中的孔，以形成对应于流体密度的压力信号，用于加强压力信号的气动放大器，以及气动操作的控制装置开发周期性的采样阀致动信号，并且在注射样品之后的可控时间选择感兴趣的特定峰值。气动控制装置包括可自动操作以响应于实际峰值洗脱时间的变化来调整峰值选择时间的装置。装置的温度敏感元件包含在由蒸汽源加热的室中，传热速率被气动地调节以在室内保持相对恒定的温度。

3. 发明授权

US5655579A Method and pparatus for testing fire suppression systems 失效
标题翻译：消防系统测试方法和装置
公开(公告)号：US5655579A
公开(公告)日：1997-08-12
申请号：US437182
申请日：1995-05-08
申请人： Robert C. Prescott , Joseph A. Senecal
发明人： Robert C. Prescott , Joseph A. Senecal
IPC分类号： A62C37/50 , F17C7/04 , B65B1/04
CPC分类号： F17C7/04 , A62C37/50
摘要： A method and apparatus for testing a fire suppressing system having outlet nozzles from which a high pressure suppressant agent is discharged in which a vessel is attached to each nozzle to capture the agent discharged during a test. The collection vessel is preferably an elongated plastic bag that is rolled to remove air from the bag before agent is discharged into it. The amount of agent captured in a vessel is calculated, such as by weighing. The captured discharged agent is compressed for return to a storage container in which it can be re-pressurized for further use.
摘要翻译：一种用于测试具有出口喷嘴的出口喷嘴的排出喷嘴的方法和装置，排出了高压抑制剂，其中容器附着到每个喷嘴上，以捕获试验期间排出的试剂。收集容器优选是细长的塑料袋，其在将药剂排放到其中之前被卷起以从袋中除去空气。计算在容器中捕获的药剂的量，例如称重。被捕获的排放剂被压缩以返回到存储容器中，在该储存容器中可以将其重新加压以供进一步使用。

4. 发明授权

US5159949A Electropneumatic positioner 失效
标题翻译：电动气动定位器
公开(公告)号：US5159949A
公开(公告)日：1992-11-03
申请号：US712507
申请日：1991-06-10
申请人： Robert C. Prescott , Donald C. Simpson , Philip H. Sanford , Howard W. Nudd
发明人： Robert C. Prescott , Donald C. Simpson , Philip H. Sanford , Howard W. Nudd
IPC分类号： F16K31/06 , F15B5/00 , G05D16/20 , H01F7/14
CPC分类号： H01F7/145 , F15B5/003 , Y10T137/2278 , Y10T137/2365
摘要： A transducer having an explosion-proof housing with a divider forming two compartments, and the divider having formed therein a well. A magnet and flapper arm arrangement is suspended within the well. A coil winding is fixed in the other compartment around the well so that a magnetic field generated thereby influences the pivotal position of the magnet. Set screws adjustable in the bottom of the well are effective to preset a rest position of the magnet.
摘要翻译：一种具有防爆壳体的换能器，其具有形成两个隔间的分隔件，并且在其中形成有孔。磁体和挡板臂布置悬挂在井内。一个线圈绕组固定在另一个隔室周围，使得由此产生的磁场影响磁铁的枢转位置。可以在井底调整的固定螺丝可有效预设磁铁的静止位置。

5. 发明授权

US4492246A Solid state current-to-pressure and current-to-motion transducer 失效
标题翻译：固态电流对压力和电流对运动传感器
公开(公告)号：US4492246A
公开(公告)日：1985-01-08
申请号：US479460
申请日：1983-03-28
申请人： Robert C. Prescott , Calman Gold , Eric V. Anderson
发明人： Robert C. Prescott , Calman Gold , Eric V. Anderson
IPC分类号： G01D5/42 , F15B5/00 , G05D16/18 , G05D16/20 , G05D16/00
CPC分类号： G05D16/2013 , G05D16/18 , Y10T137/2409
摘要： A transducer for converting an electrical current signal to a pneumatic pressure. A solid state element such as piezo-electric flapper element 48 is used to vary the pressure drop through a nozzle 46 to provide a controlled pressure supply 28. A micro-power electronic circuit 59 controls the flapper. A solid state pressure sensor 24 detects the output pressure and provides a feedback signal for use in a negative feedback loop to control the flapper element. The flapper element may be triangularly shaped to reduce its responsiveness to relatively low frequency mechanical vibrations. In a exemplary embodiment, where intrinsic safety requirements limit terminal voltages, the flapper element is driven by a transconductance amplifier 94 which is powered through a shunt regulator 82 and a voltage tripler 92. The shunt regulator provides operating potentials which are derived from the signal current.
摘要翻译：用于将电流信号转换成气动压力的换能器。诸如压电挡板元件48的固态元件用于通过喷嘴46改变压降，以提供受控的压力源28.微功率电子电路59控制挡板。固态压力传感器24检测输出压力并提供用于负反馈回路的反馈信号以控制挡板元件。挡板元件可以是三角形的，以减小其对相对低频机械振动的响应。在本征安全要求限制端子电压的示例性实施例中，挡板元件由跨导放大器94驱动，跨导放大器94通过分流调节器82和电压三倍线器92供电。分流调节器提供从信号电流导出的工作电位。

6. 发明授权

US4059994A Pneumatic chromatograph 失效
公开(公告)号：US4059994A
公开(公告)日：1977-11-29
申请号：US745392
申请日：1976-11-26
申请人： Raymond Annino , Robert C. Prescott , Edwin L. Karas , Richard W. Kalinoski
发明人： Raymond Annino , Robert C. Prescott , Edwin L. Karas , Richard W. Kalinoski
IPC分类号： G01N30/20 , G01N30/24 , G01N30/46 , G01N30/62 , G01N30/86 , G01N30/88 , G01N31/08
CPC分类号： G01N30/20 , G01N30/24 , G01N30/8658 , G01N30/461
摘要： An all-pneumatic process chromatograph having a pneumatically-actuated sample-injection valve, an orifice connected in the column output line to develop a pressure signal corresponding to fluid density, a pneumatic amplifier for strengthening the pressure signal, and pneumatically-operated control means for developing a periodic sample-valve actuating signal and for selecting a particular peak of interest at a controllable time following injection of the sample. The pneumatic control means includes means automatically operable to adjust the time of peak selection in response to changes in actual peak elution time. The temperature-sensitive elements of the apparatus are contained in a chamber which is heated by a source of steam heat, with the rate of heat transfer being regulated pneumatically to maintain a relatively constant temperature within the chamber.

7. 发明授权

US3981318A Pneumatic output signal limiting device 失效
标题翻译：气动输出信号限制装置
公开(公告)号：US3981318A
公开(公告)日：1976-09-21
申请号：US546573
申请日：1975-02-03
申请人： Robert C. Prescott
发明人： Robert C. Prescott
IPC分类号： G05B11/52 , G05D16/00
CPC分类号： G05B11/52 , Y10T137/2278 , Y10T137/2452
摘要： A pneumatic output signal limiting device utilizing a planar-type construction having a balance beam with a passage extending through the area of its pivotal axis to provide communication between side-by-side chambers and arranged so that the balance beam moves into contact with a valve in the output chamber to close the passage and further movement in the same direction open a vent. In operation, the output signal equals the input signal when the input signal is within one limit of a preselected output signal operating range. When the input signal equals the limit, the passage is closed and the output signal is maintained equal to the limit. The passage remains closed when the input is outside the limit and the output signal is maintained equal to the limit until the input signal is a preselected value outside the limit. Then the balance beam moves in the same direction to open the vent and reduce the output signal to the vent pressure. The device may be arranged for limiting either the high or the low limit of the preselected output signal operating range.
摘要翻译：一种利用平面型结构的气动输出信号限制装置，其具有平衡梁，该平衡梁具有延伸穿过其枢转轴线的区域的通道，以提供并排室之间的连通并且被布置成使得平衡梁移动成与阀在输出室中关闭通道并沿相同方向进一步移动打开通风口。在操作中，当输入信号在预选输出信号工作范围的一个限制内时，输出信号等于输入信号。当输入信号等于极限时，通道关闭，输出信号保持等于极限。当输入超出限制时，通道保持关闭，并且输出信号保持等于极限，直到输入信号是超出极限的预选值。然后平衡梁沿相同的方向移动以打开通风口，并将输出信号减小到排气压力。该装置可以被布置用于限制预选输出信号工作范围的高限或低限。

8. 发明授权

US5257639A Electropneumatic positioner 失效
标题翻译：电动气动定位器
公开(公告)号：US5257639A
公开(公告)日：1993-11-02
申请号：US934787
申请日：1992-08-24
申请人： Robert C. Prescott , Donald C. Simpson , Philip H. Sanford , Howard W. Nudd
发明人： Robert C. Prescott , Donald C. Simpson , Philip H. Sanford , Howard W. Nudd
IPC分类号： F15B5/00 , G05D16/20 , H01F7/14 , G05D7/06 , F16K31/08
CPC分类号： H01F7/145 , F15B5/003 , Y10T137/2278 , Y10T137/2365
摘要： A transducer having an explosion-proof housing with a divider forming two compartments, and the divider having formed therein a well. A magnet and flapper arm arrangement is suspended within the well. A coil winding is fixed in the other compartment around the well so that a magnetic field generated thereby influences the pivotal position of the magnet. Set screws adjustable in the bottom of the well are effective to preset a rest position of the magnet.
摘要翻译：一种具有防爆壳体的换能器，其具有形成两个隔间的分隔件，并且在其中形成有孔。磁体和挡板臂布置悬挂在井内。一个线圈绕组固定在另一个隔室周围，使得由此产生的磁场影响磁铁的枢转位置。可以在井底调整的固定螺丝可有效预设磁铁的静止位置。

9. 发明授权

US4926896A Sensitive electrical to mechanical transducer 失效
标题翻译：对机械传感器敏感
公开(公告)号：US4926896A
公开(公告)日：1990-05-22
申请号：US289224
申请日：1988-12-23
申请人： Robert C. Prescott , Robert J. Robinson
发明人： Robert C. Prescott , Robert J. Robinson
IPC分类号： H01F7/02 , F15B5/00 , G05D16/20 , H01F7/08 , H01F7/14 , H02K33/00 , H02K33/16
CPC分类号： F15B5/003 , G05D16/2013 , H01F7/145 , Y10T137/2278
摘要： A transducer having a cross field polarized permanent magnet mounted for slight pivotal movement within an annular coil winding. The magnet comprises neodymium-iron-boron to provide a compact, lightweight, low inertia and high intensity magnetic field. A magnetic field generated by current in the coil winding influences the permanent magnet to pivot slightly about a horizontal axis and rotate a yoke structure to produce a mechanical output of the transducer. In the preferred embodiment of the invention, the yoke is attached to a spring arm for controlling escape gas pressure from a nozzle to thereby control the pressure of a gas stream.

10. 发明授权

US06318497B1 Pressure-sensitive switch, its method of calibration and use in a hydrophone array 有权
标题翻译：压敏开关，其在水听器阵列中的校准和使用方法
公开(公告)号：US06318497B1
公开(公告)日：2001-11-20
申请号：US09571569
申请日：2000-05-15
申请人： Thomas J. De Groot , Glen Ferguson , William H. Hulsman , Robert C. Prescott , Richard D. Smith
发明人： Thomas J. De Groot , Glen Ferguson , William H. Hulsman , Robert C. Prescott , Richard D. Smith
IPC分类号： G01V100
CPC分类号： G01V13/00 , G01V1/201 , H01H35/346
摘要： A pressure-sensitive switch comprises a base member having a mounting surface formed of electrically-insulating material; two electrodes mounted on the base member and each having an electrically-conductive contact surface, and a flexible diaphragm having its periphery secured in a fluid-tight manner to the mounting surface with its electrically-conductive central portion overlying the contact surfaces of the electrodes. The diaphragm, which is formed with plural corrugations, is exposed to the external pressure. When the switch is exposed to atmospheric pressure, the central portion of the diaphragm does not touch the contact surfaces of said electrodes, but when the switch is exposed to a super-atmospheric pressure, this central portion is forced into contact with both contact surfaces, thus electrically connecting the two electrodes. This pressure-sensitive switch is especially useful for use with hydrophones, as in seismic streamer cables.
摘要翻译：压敏开关包括具有由绝缘材料形成的安装表面的基座构件; 两个电极安装在基座构件上并且各自具有导电接触表面，以及柔性隔膜，其周边以流体密封的方式固定到安装表面，其导电中心部分覆盖在电极的接触表面上。形成有多个波纹的隔膜暴露于外部压力。当开关暴露于大气压力时，隔膜的中心部分不接触所述电极的接触表面，但是当开关暴露于超大气压时，该中心部分被迫与两个接触表面接触，从而电连接两个电极。这种压敏开关对于与水听器一起使用是特别有用的，如在地震拖缆中。

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