公开(公告)号：USD343457S

公开(公告)日：1994-01-18

申请号：US656640

申请日：1991-02-19

Applicant: Lawrence W. Stalec ,  Bruce M. Morical ,  Sandra L. Finley

Designer： Lawrence W. Stalec ,  Bruce M. Morical ,  Sandra L. Finley

公开(公告)号：USD304611S

公开(公告)日：1989-11-14

申请号：US032390

申请日：1987-03-30

Applicant: Lawrence W. Stalec

Designer： Lawrence W. Stalec

公开(公告)号：US4263501A

公开(公告)日：1981-04-21

申请号：US9548

申请日：1979-02-05

Applicant: Jack L. Wilhelmson

Inventor： Jack L. Wilhelmson

IPC: G05D23/24 ,  B23K1/02 ,  G05D23/00

CPC classification number: G05D23/24 ,  G05D23/1913

Abstract: The apparatus may be used to control heater elements for an over chamber. The heater elements are operated in accordance with the output of a comparator having on one input a voltage representative of the temperature in a chamber. The voltage on the other input is established in accordance with the desired or ultimate temperature in the chamber. As long as the volage on the second-mentioned input is greater than the voltage on the other input, the heater elements will be energized to heat the chamber. The voltage on the second-mentioned input is modulated with a triangular wave so that the heater elements are operated intermittently as the desired temperature of the chamber is approached. The amplitude of the triangular wave varies with the desired temperature so that at higher and higher oven temperatures, the heater elements start to become intermittent at higher and higher temperatures.

Abstract translation: 该装置可以用于控制用于过室的加热器元件。 加热器元件根据具有一个输入端的比较器的输出来操作，该比较器具有代表腔室中的温度的电压。 另一个输入端的电压根据腔室中所需或最终的温度而建立。 只要第二次提到的输入上的电压大于另一个输入端的电压，则加热器元件将被通电以加热该腔室。 第二提及的输入端的电压用三角波调制，使得随着腔室的所需温度接近，加热器元件间歇地操作。 三角波的振幅随着所需温度而变化，使得在较高和较高的烘箱温度下，加热器元件在更高和更高的温度下开始变得间歇。

公开(公告)号：US5247989A

公开(公告)日：1993-09-28

申请号：US841552

申请日：1992-02-26

Applicant: John A. Benevelli

Inventor： John A. Benevelli

IPC: B60H1/00 ,  F25B13/00 ,  F25B41/04 ,  F25B49/02

CPC classification number: B60H1/2218 ,  B60H1/00007 ,  B60H1/00814 ,  F25B13/00 ,  F25B41/04 ,  F25B49/02 ,  F25B2313/023 ,  F25B41/043

Abstract: A temperature-controlled environmental chamber includes a resistance heater powered through a first solid state relay and a refrigeration unit including an electrically powered thermally controlled suction throttling valve connected in the refrigerant line between the evaporator and the inlet of the compressor, and including a bimetal motor and a heating element therefor powered through a second solid state relay. A thermostat senses the temperature in the chamber and compares it to a set point temperature and outputs a pulse-width modulated control signal indicative of the difference between the two temperatures. The control signal directly controls the heater relay for substantially continuous variation of the heater between minimum and maximum heating conditions. The control signal also directly controls the throttling valve relay by controlling the power to its heating element for substantially continuous variation of the valve between maximum and minimum cooling conditions, so that the amount of cooling provided is inversely proportional to the amount of heating provided.

Abstract translation: 温度控制的环境室包括通过第一固态继电器供电的电阻加热器和包括连接在蒸发器和压缩机入口之间的制冷剂管线中的电动热控吸入节流阀的制冷单元，并且包括双金属马达 和通过第二固态继电器供电的加热元件。 恒温器感测室中的温度并将其与设定点温度进行比较，并输出指示两个温度之间的差的脉宽调制控制信号。 控制信号直接控制加热器继电器，用于加热器在最小和最大加热条件之间的基本连续变化。 控制信号还通过控制其加热元件的功率直接控制节流阀继电器，以在最大和最小冷却条件之间基本上连续地改变阀，使得所提供的冷却量与所提供的加热量成反比。

公开(公告)号：USD275033S

公开(公告)日：1984-08-07

申请号：US148549

申请日：1980-05-09

Applicant: Lester B. Postlewait

Designer： Lester B. Postlewait

公开(公告)号：US07318667B2

公开(公告)日：2008-01-15

申请号：US11086978

申请日：2005-03-22

Applicant: Lawrence Walter Stalec ,  Bradley William Stone

Inventor： Lawrence Walter Stalec ,  Bradley William Stone

IPC: B01F11/00

CPC classification number: B01F11/0005

Abstract: A platform shaker for use in a CO2 rich environment that has a corrosion resistant output shaft and a corrosion resistant, sealed motor casing. An eccentric drive assembly is connected between the output shaft and a platform and has components treated with a corrosion inhibiting coating. A shaker control controls the electric motor has components treated with a conformal coating.

Abstract translation: 一种用于富含CO 2环境的平台振动筛，具有耐腐蚀输出轴和耐腐蚀密封的电机外壳。 偏心驱动组件连接在输出轴和平台之间，并具有用腐蚀抑制涂层处理的部件。 振动器控制器控制电动机并且具有用保形涂层处理的部件。

公开(公告)号：US5399840A

公开(公告)日：1995-03-21

申请号：US207605

申请日：1994-03-09

Applicant: John W. Goeddeke

Inventor： John W. Goeddeke

IPC: B01L7/00 ,  H05B3/70

CPC classification number: H05B3/70 ,  B01L7/00

Abstract: A block heating system includes a housing defining an open-top well closed at the bottom by a base plate which is heated by an electric heater in the housing. One or more carrier blocks are removably received in the well, each block having a plurality of receptacles in the top face for receiving test tubes or the like to be heated. A temperature probe assembly includes a rigid metal sheath projecting up into the well from the base plate and receivable in a bore in the bottom of one of the carrier blocks. A thermistor at the tip of the sheath senses the temperature in the middle of the block, which is displayed on an LED display on the front panel of the housing.

Abstract translation: 块体加热系统包括壳体，该壳体在底部限定由底板封闭的开口，该底板由壳体中的电加热器加热。 一个或多个承载块可移除地容纳在井中，每个块在顶面中具有多个接收器，用于接收待加热的试管等。 温度探针组件包括刚性金属护套，其从基板突出到井中并且可接收在一个承载块的底部中的孔中。 护套尖端的热敏电阻感测块体中部的温度，显示在外壳前面板上的LED显示屏上。

公开(公告)号：US5226472A

公开(公告)日：1993-07-13

申请号：US792705

申请日：1991-11-15

Applicant: John A. Benevelli ,  Michael L. Murray ,  Duane C. Drinkwine

Inventor： John A. Benevelli ,  Michael L. Murray ,  Duane C. Drinkwine

IPC: B60H1/00 ,  F24F11/08 ,  F25B41/04 ,  F25B49/02 ,  G05D23/19

CPC classification number: F24F11/08 ,  B60H1/00814 ,  F25B49/02 ,  G05D23/1919 ,  F25B2313/023 ,  F25B2600/2521 ,  F25B41/043

Abstract: A temperature-controlled environmental chamber includes a resistance heater controlled by a solid state relay and a refrigeration unit including an electronically controlled suction throttling valve connected in the refrigerant line between the evaporator and the inlet of the compressor. A temperature controller senses the temperature in the chamber and compares it to a set point temperature and outputs a pulse-width modulated control signal indicative of the difference between the two temperatures. The control signal directly controls the heater relay for substantially continuous variation between minimum and maximum heating conditions. The control signal is converted to an analog signal for controlling the throttling valve of the refrigeration unit for substantially continuous variation between maximum and minimum cooling conditions, so that the amount of cooling provided is inversely proportional to the amount of heating provided. A hot gas bypass is provided for maintaining a minimum input pressure on the condenser and a refrigerant bypass is provided to maintain the input temperature of the compressor below a predetermined maximum.

Abstract translation: 温度控制环境室包括由固态继电器控制的电阻加热器和包括连接在蒸发器和压缩机入口之间的制冷剂管线中的电子控制的吸入节流阀的制冷单元。 温度控制器感测室中的温度并将其与设定点温度进行比较，并输出指示两个温度之间的差的脉宽调制控制信号。 控制信号直接控制加热器继电器，用于在最小和最大加热条件之间实质上连续的变化。 控制信号被转换为用于控制制冷单元的节流阀的模拟信号，用于在最大和最小冷却条件之间实质上连续的变化，使得所提供的冷却量与所提供的加热量成反比。 提供热气旁通以保持冷凝器上的最小输入压力，并且提供制冷剂旁路以将压缩机的输入温度保持在预定最大值以下。

公开(公告)号：USD288600S

公开(公告)日：1987-03-03

申请号：US646109

申请日：1984-08-31

Applicant: Dirk E. Vander Hout ,  Raymond A. Dufour

Designer： Dirk E. Vander Hout ,  Raymond A. Dufour