公开(公告)号：US4981156A

公开(公告)日：1991-01-01

申请号：US438660

申请日：1989-11-17

Applicant: James R. Nicklas ,  Robert D. MacDonald

Inventor： James R. Nicklas ,  Robert D. MacDonald

IPC: F16K11/074 ,  F16K11/20

CPC classification number: F16K11/202 ,  F16K11/0746 ,  Y10T137/5196 ,  Y10T137/87129 ,  Y10T403/125 ,  Y10T74/20732

Abstract: A mixing valve (10) has a modular cartridge (60) rotatably mounted in housin (12). The cartridge has a bottom volume control valve plate (58) attached to a lower section (62) housing a pressure balance valve (80). The lower section (62) is secured to an upper section (120) that rotatably receives a temperature control plate (150). The plates (58) and (150) are both rotatable about a common axis (64). The plate (58) is controlled by operation of stem (180) attached to handle (34). The plate (150) is controlled by stem (160) which is operated by knob (38). An insert (250) allows the knob (38) to operate even when hot and cold water supplies are inverted. A splined hot water stop ring (228) sits in handle (34) and adaptably limits rotation of knob (38) for a selected maximum water temperature. Outer seals (58) assure that all water flows through cartridge (60) when the volume is set for partial flow.

Abstract translation: 混合阀（10）具有可旋转地安装在壳体（12）中的模块化筒（60）。 墨盒具有附接到容纳压力平衡阀（80）的下部（62）的底部容积控制阀板（58）。 下部（62）被固定到可旋转地接收温度控制板（150）的上部（120）。 板（58）和（150）都可绕公共轴线（64）旋转。 板（58）由附接到手柄（34）上的杆（180）的操作来控制。 板（150）由通过旋钮（38）操作的杆（160）控制。 即使当热水和冷水供应被反转时，插件（250）也允许旋钮（38）操作。 花键式热水止动环（228）位于手柄（34）中，并适应性地限制旋钮（38）的旋转以达到所选择的最大水温。 外部密封件（58）确保当容积设定为部分流动时，所有的水都流过料筒（60）。

公开(公告)号：US4699172A

公开(公告)日：1987-10-13

申请号：US868095

申请日：1986-05-28

Applicant: Robert D. MacDonald

Inventor： Robert D. MacDonald

IPC: G05D23/13 ,  F17D3/01

CPC classification number: G05D23/1353 ,  Y10T137/8158

Abstract: A valve assembly comprising a temperature responsive servomechanism adapted to combine hot and cold water under pressure to produce a constant preselected temperature of water at an outlet.The valve assembly comprises a housing having a valving cavity, a hot water inlet leading to the valving cavity, a cold water inlet leading to the valving cavity, and a mixed water outlet passageway leading from the valving cavity. A valve member translates in the valving cavity and divides the cavity into two auxiliary chambers. A passageway through the valve member allows fluid to flow from each of the inlets to the outlet passageway at a rate that varies as the valve member translates. Passageways in the valve member permit a portion of the mixed water to flow into the auxiliary chambers. An auxiliary passageway is provided between each of the auxiliary chambers and the outlet passageway. A temperature responsive element is provided within the outlet passageway. In response to a deviation in the temperature of water in the mixing chamber the temperature responsive element closes one of the auxiliary passageways causing the valve member to translate until the water in the outlet passageway reaches the preselected temperature.

Abstract translation: 一种阀组件，其包括适于在压力下结合热水和冷水的温度响应性伺服机构，以在出口处产生恒定的预选温度的水。 阀组件包括具有阀腔，通向阀腔的热水入口，通向阀腔的冷水入口以及从阀腔引出的混合出水通道的壳体。 阀构件在阀腔中平移并将腔分成两个辅助室。 通过阀构件的通道允许流体以随阀构件翻转而变化的速率从每个入口流到出口通道。 阀构件中的通道允许混合水的一部分流入辅助室。 辅助通道设置在每个辅助室和出口通道之间。 在出口通道内提供温度响应元件。 响应于混合室中水的温度偏差，温度响应元件关闭辅助通道中的一个，导致阀构件平移直到出口通道中的水达到预选温度。

公开(公告)号：US4458839A

公开(公告)日：1984-07-10

申请号：US354241

申请日：1982-03-03

Applicant: Robert D. MacDonald

Inventor： Robert D. MacDonald

IPC: G05D23/13

CPC classification number: G05D23/1353 ,  Y10T137/86815

Abstract: A valve assembly comprising a temperature responsive servo-mechanism adapted to combine hot and cold water under pressure to produce a constant preselected temperature of water at an outlet.The valve assembly comprises a housing having a valving cavity, a hot water inlet leading to the valving cavity, a cold water inlet leading to the valving cavity, and a mixed water outlet passageway leading from the valving cavity. A valve member translates in the valving cavity and divides the cavity into two auxiliary chambers. A passageway through the valve member allows fluid to flow from each of the inlets to the outlet passageway at a rate that varies as the valve member translates. Passageways in the valve member permit a portion of the mixed water to flow into the auxiliary chambers. An auxiliary passageway is provided between each of the auxiliary chambers and the outlet passageway. A temperature responsive element is provided within the outlet passageway. In response to a deviation in the temperature of water in the mixing chamber the temperature responsive element closes one of the auxiliary passageways causing the valve member to translate until the water in the outlet passageway reaches the preselected temperature.

Abstract translation: 一种阀组件，包括温度响应伺服机构，其适于在压力下结合热水和冷水以在出口处产生恒定的预选温度的水。 阀组件包括具有阀腔，通向阀腔的热水入口，通向阀腔的冷水入口以及从阀腔引出的混合出水通道的壳体。 阀构件在阀腔中平移并将腔分成两个辅助室。 通过阀构件的通道允许流体以随阀构件翻转而变化的速率从每个入口流到出口通道。 阀构件中的通道允许混合水的一部分流入辅助室。 辅助通道设置在每个辅助室和出口通道之间。 在出口通道内提供温度响应元件。 响应于混合室中水的温度偏差，温度响应元件关闭辅助通道中的一个，导致阀构件平移直到出口通道中的水达到预选温度。

公开(公告)号：US4562994A

公开(公告)日：1986-01-07

申请号：US713136

申请日：1985-03-18

Applicant: Robert D. MacDonald

Inventor： Robert D. MacDonald

IPC: F16K5/18 ,  F16K27/06 ,  F16K25/00

CPC classification number: F16K27/065 ,  F16K5/188

Abstract: Three-piece stop valves, in both angle and straight-through forms, are disclosed comprising a valve body, resilient control sleeve and handle, with no separate fasteners or sealing elements being required. The handle and control sleeve are retained within the valve body by resilient formations on the handle which snap into a retaining groove on the valve body. Inlet line pressure resiliently biases the side walls of the control sleeve into sealing engagement with the valve bore to prevent leakage.

Abstract translation: 公开了三片截止阀，包括角度和直通形式，其包括阀体，弹性控制套筒和手柄，不需要单独的紧固件或密封元件。 手柄和控制套筒通过手柄上的弹性结构保持在阀体内，卡入阀体上的保持槽中。 入口管线压力弹性地将控制套管的侧壁偏压到与阀孔密封接合以防止泄漏。

公开(公告)号：US4453567A

公开(公告)日：1984-06-12

申请号：US362902

申请日：1982-03-29

Applicant: Robert D. MacDonald

Inventor： Robert D. MacDonald

IPC: F16K3/08 ,  F16K11/00

CPC classification number: F16K3/08 ,  Y10T137/86549 ,  Y10T137/86823 ,  Y10T137/87981

Abstract: A valve assembly has a first ceramic valve member having a flat valving surface. An aperture open to the valving surface is provided through the valve member. The valve assembly further has a tubular valve member having an aperture therethrough, and an annular valving surface adjacent to the valving surface of the other valve member. The apertures through the respective valve members are moved into and out of registry with each other by relative movement therebetween. Preferably, a valve body is provided having a large bore accepting the first valve member and a small bore accepting the tubular valve member. The apertures are movable into and out of registry by rotation of the first valve member within the large bore.

Abstract translation: 阀组件具有具有平坦阀门表面的第一陶瓷阀构件。 通过阀构件提供通向阀门表面的孔。 阀组件还具有管状阀构件，其具有穿过其中的孔，以及邻近另一个阀构件的阀表面的环形阀表面。 通过相应的阀构件的孔通过它们之间的相对运动而彼此移动进入和离开对准。 优选地，具有容纳第一阀构件的大孔的阀体和容纳管状阀构件的小孔。 孔可以通过第一阀构件在大孔内旋转而进入和离开注册。

公开(公告)号：US4396353A

公开(公告)日：1983-08-02

申请号：US253424

申请日：1981-04-13

Applicant: Robert D. MacDonald

Inventor： Robert D. MacDonald

IPC: F04D15/02 ,  G01F23/292 ,  F04B49/06

CPC classification number: G01F23/2922 ,  F04D15/0218

Abstract: A sump pump includes a submersible electric motor for driving an impeller which discharges water radially outward into a volute oriented in a horizontal plane at the bottom of the device. An optical sensor located at a predetermined pump-operating level utilizes the light reflecting and refracting properties of the sensor-chamber interface to sense the presence or absence of water at such level. In a first embodiment, the pump includes a supplementary water level-sensing chamber which has a first leg ascending from an inlet near its lower end to an overflow point at the top of a vertical barrier separating the first leg from a second leg which descends to the low pressure area of the impeller. The optical sensor is located at the overflow point such that the sensor will detect water and therefore activate the motor and the pump when the static water level is at least as high as the overflow point and will continue to detect water as the level subsequently drops because the pump will siphon water over the overflow point until the siphon is broken when the water level in the sump drops below the inlet of the first leg of the sensing chamber. When that occurs, the optical sensor will respond to the air drawn into the chamber by the pump and the control circuit will shut off the pump motor. In the preferred embodiment a single optical sensor is selectively positioned within the sump chamber to establish the pump-activating level. When the optical sensor senses water at this level, the pump motor is started, and once the water level falls below the pump-activating level, a signal for stopping the motor is generated. However, a delay circuit operates to delay the stopping of the motor for a predetermined time interval equal to the time required to pump a predetermined volume of water from the sump chamber. After this delay, the motor is stopped and will remain so until the liquid has again risen in the sump to the pump-activating level. In both embodiments, a single optical sensor functions to detect both the upper and lower levels which are predetermined to be the pump-starting and the pump-stopping control levels.

公开(公告)号：US4163474A

公开(公告)日：1979-08-07

申请号：US805063

申请日：1977-06-09

Applicant: Robert D. MacDonald ,  Robert K. Rose ,  John W. Papsdorf

Inventor： Robert D. MacDonald ,  Robert K. Rose ,  John W. Papsdorf

IPC: B21C37/22 ,  F28D7/16 ,  F28F1/40

CPC classification number: F28F1/40 ,  B21C37/225 ,  F28D7/1669 ,  Y10S165/519 ,  Y10T29/49384

Abstract: Fluid-carrying tubes for a heat exchanger are provided with internal longitudinal fins formed separately from the tube itself. One form utilizes individual elongated V-shaped strips biased radially outwardly by an annular sheet metal spring, with the tips of the fins brazed to the inner surface of the tube wall. Second and third embodiments utilize a one-piece corrugated sheet metal cylinder rather than individual strips, but with adjacent fins being almost completely severed from each other to provide sharp edge contact between the tips of the fins and the tube wall for optimum brazing. Either the fins or tube inner wall is clad with a lower-melting point material which permits furnace brazing of the fin tips to the tube wall. All three forms have longitudinally spaced holes and slots to enhance heat exchange by inducing transverse fluid flow through the fins and to allow liquid levels to equalize.

Abstract translation: 用于热交换器的流体输送管设置有与管本身分开形成的内部纵向翅片。 一种形式使用通过环形金属片弹簧径向向外偏置的单独的细长V形条，翅片的尖端钎焊到管壁的内表面。 第二和第三实施例利用单件波纹金属板而不是单独的条，但是相邻的翅片彼此几乎完全切断，以便在翅片的顶端和管壁之间提供锋利的边缘接触以便最佳的钎焊。 翅片或管内壁都用较低熔点的材料包覆，这允许翅片尖端熔化到管壁上。 所有三种形式具有纵向隔开的孔和槽，以通过引起横向流体流过翅片并允许液体水平相等来增强热交换。

公开(公告)号：USRE28786E

公开(公告)日：1976-04-27

申请号：US575774

申请日：1975-05-13

Applicant: Robert D. MacDonald

Inventor： Robert D. MacDonald

IPC: E05D11/10

CPC classification number: E05D11/1014 ,  E05D11/1064 ,  E05Y2900/20 ,  Y10T16/5381 ,  Y10T16/54025

Abstract: 4. A hinge to pivotally connect a door to a frame in a manner such that the door will close tightly without a latch, said hinge comprising a first portion and a second portion, said first portion having a first flange, a first ear, and a connection between said flange and said ear, one of said portions being attachable to the frame and the other portion being attachable to the door, .Iadd.said connection between said first flange and said first ear being of sufficient length to space the hinged end of the door from the frame in the closed position of the door when the door has been pivotally connected to the frame, .Iaddend.said first portion being attachable along any part of said frame or said door, said second portion including a second flange, a second ear on one side of said second flange connected to said second flange, said first ear and said second ear being pivotally connected by a hinge pin, guide means extending from said second flange, a .Iadd.plunger .Iaddend..[.pressure member.]. carried by said second portion and guided with the aid of said guide means in a direction toward and away from said hinge pin, spring means carried by said second portion urging said .Iadd.plunger .Iaddend..[.pressure member.]. toward said hinge pin, said ear of said first portion having an arcuate portion and an engageable edge to be engaged by said .Iadd.plunger, .Iaddend. .[.pressure member.]. said edge being positioned so that the force of said spring means acting through said .Iadd.plunger .Iaddend. .[.pressure member.]. and said edge can be directed to one side of said hinge pin to produce a torque tending to move the door beyond its closed position, when the door is closed, and said arcuate portion being .Iadd.continuous from one end thereof at its juncture with said edge to its other end and being of sufficient length to have portions thereof receive .Iaddend. .[.positioned so that.]. the force of said spring means acting through said .Iadd.plunger against said arcuate portion and .Iaddend. .[.pressure member can be.]. directed through said hinge pin when said door is in any open position .Iadd.between the near-closed position and the fully open position .Iaddend.and said .Iadd.plunger .Iaddend. .[.pressure member.]. is spaced from said edge.