公开(公告)号：US5193345A

公开(公告)日：1993-03-16

申请号：US720289

申请日：1991-06-25

Applicant: Leonardo Cadeddu

Inventor： Leonardo Cadeddu

IPC: F15B5/00 ,  F16D48/02 ,  F16D48/04

CPC classification number: F15B5/00 ,  F16D25/14 ,  F16D48/02 ,  F16D48/04 ,  F16D2048/0209 ,  F16D2048/0212 ,  Y10T137/86919

Abstract: The distributor is used for supplying a fluid coming from a source of fluid under pressure and under a pressure which is a function of the pressure of a control fluid. The distributor comprises, in a bore (3) made in a body (1), a double valve consisting, on the one hand, of a first piston (21), one end of which defines with a first plug (5) a control chamber (23) receiving the control fluid, while the other end (27) is pierced with a conduit (29) connected to a reservoir of fluid under low pressure (11), an annular chamber (31) surrounding the first piston (21) and being connected to the consumer circuit of the distributed fluid, and, on the other hand, of a disk (33) forming a shutter and resting on a circular seat (35) stationary relative to the body (1) by way of a return spring (43). The disk (33) is opposite the other end (27) of the first piston, this being capable, under the action of the pressure prevailing in the control chamber (23), of coming up against the disk (33), so as to close communication between the conduit (29) and the annular chamber (31), and then of displacing the disk (33) so as to open communication between a conduit for the inlet of the fluid under pressure and the annular chamber (31). The distributor comprises, furthermore, a second piston (39), one face of which is fixed to the face of the disk (33) opposite the seat (35) of the latter and the other face of which defines with a second plug (7) closing the bore (3) a balancing chamber (41) communicating permanently with the annular chamber (31).

Abstract translation: 分配器用于在压力下和在作为控制流体的压力的函数的压力下供应来自流体源的流体。 分配器包括在主体（1）制成的孔（3）中的双阀，其一方面由第一活塞（21）组成，第一活塞的一端限定有第一塞（5），控制 接收控制流体的腔室（23），而另一端（27）用连接到低压（11）的流体贮存器的导管（29）刺穿，围绕第一活塞（21）的环形室（31） 并且连接到分配流体的消耗电路，另一方面由形成快门的盘（33）连接并且通过返回而相对于主体（1）静止在圆形座（35）上。 春天（43）。 盘（33）与第一活塞的另一端（27）相对，这可以在控制室（23）中的压力作用下抵靠盘（33）抵达，以便 导管（29）和环形室（31）之间的紧密连通，然后移动盘（33），以打开用于压力下的流体入口的导管与环形室（31）之间的连通。 此外，分配器还包括第二活塞（39），其一个面固定到与后者的座（35）相对的盘（33）的面上，另一个面用第二塞（7 关闭所述孔（3）与所述环形室（31）永久连通的平衡室（41）。

公开(公告)号：US4374487A

公开(公告)日：1983-02-22

申请号：US225593

申请日：1981-01-16

Applicant: Neil H. Akkerman ,  Bruce D. Christensen

Inventor： Neil H. Akkerman ,  Bruce D. Christensen

IPC: F15B5/00 ,  F16K31/385

CPC classification number: F15B5/00 ,  Y10T137/2278

Abstract: A fluid actuated pilot assembly employing a cantilevered spring member which is mounted to apply a force to a sensing piston in opposition to the force applied by the sensed fluid pressure. Upon the occurrence of the pressure of the fluid being sensed exceeding the force of the cantilevered spring member, the sensing piston is moved to initiate a control function.

Abstract translation: 一种采用悬臂弹簧构件的流体致动引导组件，其被安装成与感测的流体压力施加的力相反地向感测活塞施加力。 当检测到的流体的压力超过悬臂弹簧构件的力时，检测活塞被移动以启动控制功能。

公开(公告)号：US3939758A

公开(公告)日：1976-02-24

申请号：US407210

申请日：1973-10-17

Applicant: Jacques Faisandier

Inventor： Jacques Faisandier

IPC: F15B5/00 ,  G01L7/08 ,  G01L19/04 ,  H01H35/34 ,  F15B21/04

CPC classification number: H01H35/34 ,  F15B5/00 ,  G01L11/004 ,  G01L19/04

Abstract: A sensor particularly well suited for use in the monitoring of hydraulic pressure. The sensor includes a deformable membrane mechanically coupled to an electrical switch. The membrane is mounted within a chamber in a manner which permits free radial displacement of the edge of the membrane and which also permits the axial position and shape of the membrane to be varied during assembly of the device.

Abstract translation: 特别适用于监测液压的传感器。 传感器包括机械耦合到电气开关的可变形膜。 膜以允许膜的边缘的自由径向位移的方式安装在腔室内，并且还允许膜的轴向位置和形状在组装装置期间变化。

公开(公告)号：US3931738A

公开(公告)日：1976-01-13

申请号：US509650

申请日：1974-09-26

Applicant: Elpidifor Paramonoff ,  Frederick C. Olsen

Inventor： Elpidifor Paramonoff ,  Frederick C. Olsen

IPC: F15B5/00 ,  F15B20/00 ,  G01L13/02 ,  H01H35/38 ,  G01L7/16

CPC classification number: H01H35/38 ,  F15B20/004 ,  F15B5/00 ,  G01L13/02

Abstract: Pressurized operating fluid, such as oil for hydrostatic fluid bearings, is directed into a chamber against a plunger urging the plunger into a first position. A monitoring pressure force slightly less than the force of the operating fluid when the operating fluid is at a minimum working pressure is exerted against the plunger tending to move the plunger from this first to a second position. Thus, when the pressure of the operating fluid drops below the minimum working pressure, the plunger is moved to its second position and such movement is sensed, thereby sensing the malfunction.

Abstract translation: 加压工作流体，例如用于流体静力流体轴承的油，被引导到抵靠柱塞推动柱塞进入第一位置的腔室中。 当工作流体处于最小工作压力时，稍微小于工作流体的力的监测压力作用在柱塞上，以将柱塞从该第一位置移动到第二位置。 因此，当工作流体的压力下降到最低工作压力以下时，柱塞被移动到其第二位置，并且感测到这种运动，从而感测故障。

公开(公告)号：US3763702A

公开(公告)日：1973-10-09

申请号：US3763702D

申请日：1970-07-09

Applicant: BURLINGTON INDUSTRIES INC

Inventor： JOY R

IPC: B65H63/02 ,  F15B5/00 ,  G08B5/06

CPC classification number: F15B5/00 ,  B65H63/02 ,  B65H2701/31

Abstract: A pneumatic device, particularly for detecting an ends down condition on a spinning frame, having a piston member with a passageway connecting its rear to an enclosed region at its front and movable in a bore of a housing rearward against a spring when a low pressure signal is applied to the device and communicated to the enclosed region via the passageway. In one embodiment, the piston member grips a movable electrode in its rear position and, as it returns forward after the signal is removed, drags the electrode forward against a spring to connect it to a stationary electrode and produce an electrical pulse and further generates pneumatic pulses by its forward and rear movements. In another embodiment, a valve stem blocks a passageway venting a chamber to the atmosphere when the end is up so that pressure is communicated to the region at the front of the piston member which moves rearward away from a transparent bezel and when the end is down the chamber is vented and the piston member moves forward until the colored front of the piston member is visible through the bezel. In yet another embodiment, the yarn itself blocks the passageway. In another embodiment, the ends down detector includes a pivotable member which engages the yarn at one end and has a magnet mounted on its other end so that when the yarn comes down the magnet moves adjacent a reed switch which is closed thereby. In one system a number of such reed switches are each connected to a unique combination of data lines and a recorder for each switch is likewise connected to the lines. The recorder has a normally closed relay connected to those lines to which the associated switch is not connected and a normally open relay connected to those lines to which the associated switch is connected so that a current path is completed through a recorder relay via all of the relay switches only when the associated reed switch is closed. In another system, a number of pneumatic devices are connected to a common manifold so that a pneumatic signal travels both directions in the manifold toward devices for detecting the arrival of the signal. The time interval between the arrival of the signal at the first device and the arrival at the second indicates the position of the pneumatic device producing the signal and accordingly the particular device producing the signal. In one embodiment, the arrival of the signal at the first device causes a wheel to begin rotating and sequentially connecting to a number of fixed contacts. The arrival of the signal at the second device causes an electrical signal to be coupled to the fixed contact to which the wheel is connected at that time. In a second embodiment, the arrival of the signal at the first device causes a pneumatic logic to sequentially move through a number of stages so that the stage activated at the time of arrival at the second device indicates the pneumatic device which produced the signal.

公开(公告)号：US3675225A

公开(公告)日：1972-07-04

申请号：US3675225D

申请日：1969-11-12

Applicant: HOBSON LTD H M

Inventor： GLAZE STANLEY GEORGE

IPC: F15B5/00 ,  F15B21/00 ,  F15C4/00 ,  G05D16/18 ,  G08C19/00

CPC classification number: F15B21/00 ,  F15B5/00 ,  F15C4/00 ,  G05D16/18 ,  G05D16/185 ,  Y10T137/2218

Abstract: A pressure ratio sensor for producing a signal proportional to the ratio of two pneumatic pressures derived from two probes and comprising a casing, a diaphragm dividing the casing into two chambers each having an inlet, a needle attached to the diaphragm and extending through one of the chambers and controlling, in accordance with the position of the diaphragm, the effective area of an outlet from that chamber, the signal pressure from one probe being applied directly to one of the inlets, the signal pressure of the other probe being multiplied by a known factor, the multiplied signal pressure being applied to the other inlet and the position of the needle producing a signal indicative of the ratio.

Abstract translation: 一种压力比传感器，用于产生与由两个探针产生的两个气压的比率成比例的信号，包括壳体，隔膜将壳体分成两个室，每个腔室均具有入口，针头连接到隔膜并延伸穿过其中一个 并且根据隔膜的位置控制来自该室的出口的有效面积，来自一个探针的信号压力直接施加到一个入口，另一个探针的信号压力乘以已知的 因子，倍增的信号压力被施加到另一个入口和针的位置产生指示比率的信号。

公开(公告)号：US3631876A

公开(公告)日：1972-01-04

申请号：US3631876D

申请日：1969-09-15

Applicant: REMINGTON ARMS CO INC

Inventor： MISEVICH KENNETH W

IPC: F15B5/00 ,  F15C1/00 ,  G08B23/00 ,  G05D11/00

CPC classification number: G08B23/00 ,  F15B5/00 ,  F15C1/007 ,  Y10T137/2496 ,  Y10T137/8158 ,  Y10T137/86558

Abstract: A fluid-operated logic device suitable for operating an annunciator system, or the like, which device has a bore with a piston valve member slidable therein. The piston has a transverse alert crossover to permit fluid flow between a constant pressure conduit and an alert conduit leading to an alert indicator. The piston is also provided with a crossover which permits communication between a conduit in which pressure increases in response to the detection of trouble and a monitor conduit leading to a monitor alarm. A conduit branches from the trouble conduit and is connected to the casing to act against the head end of the piston valve member. Upon an increase in pressure in the trouble circuit, the piston will be moved to the alert position where the alert alarm will be given until this condition has been acknowledged, the kinetic energy of the moving piston being employed. The piston is then returned to its normal position by an acknowledge arrangement, but should the trouble condition persist, the piston will return to and remain in its monitor position to indicate that the trouble condition has not been removed. When the trouble disappears, fluid pressure will move the piston to its normal position.

Abstract translation: 适用于操作报警器系统等的流体操作逻辑装置，该装置具有孔，活塞阀构件可在其中滑动。 活塞具有横向警报交叉，以允许恒定压力导管和通向警报指示器的警报导管之间的流体流动。 活塞还设置有交叉，其允许响应于故障检测而压力增加的导管与导致监视器报警的监视导管之间的连通。 导管从故障管道分支并且连接到壳体以作用在活塞阀构件的头端。 当故障回路中的压力增加时，活塞将被移动到报警位置，在警报位置将发出警报报警，直到该状态被确认为运动活塞的动能为止。 然后通过确认装置将活塞返回到其正常位置，但是如果故障状态持续存在，则活塞将返回并保持在其监视位置，以指示故障状况未被除去。 当故障消失时，流体压力将使活塞移动到正常位置。

公开(公告)号：US3623401A

公开(公告)日：1971-11-30

申请号：US3623401D

申请日：1970-03-02

Applicant: MULTIFASTENER CORP

Inventor： YORK KENNETH V ,  POUCH THOMAS M

IPC: F15B5/00 ,  H01H35/34 ,  B23D15/00

CPC classification number: H01H35/34 ,  F15B5/00

Abstract: A FLUID PRESSURE PROBE SYSTEM FOR GENERATING A SIGNAL IN RESPONSE TO THE LOCATION OF AN ARTICLE AT A SELECTED POSITION AT A WORK STATION. THE SYSTEM INCLUDES A PLURALITY OF INDIVIDUAL DIFFERENTIAL RESPONSIVE TRANSDUCERS CONNECTED IN PARALLEL TO A COMMON PRESSURE MANIFOLD SO THAT MANIFOLD PRESSURE IS NORMALLY APPLIED TO BOTH SIDES OF EACH TRANSDUCER TO NORMALLY MAINTAIN A ZERO DIFFERENTIAL PRESSURE. A PROBE HAVING A VENT PASSAGE IS CONNECTED TO EACH TRANSDUCER BETWEEN ONE SIDE OF THE TRANSDUCER AND THE POINT OF CONNECTION TO THE MANIFOLD. THE OUTLET OF THE VENT PASSAGE IS NORMALLY CLOSED BY A SIMPLE BALL VALVE SEATED IN THE END OF THE PASSAGE AND MAINTAINED IN ITS CLOSED POSITION BY THE PRESSURE WITHIN THE PASSAGE. THE

PROBE IS MOUNTED IN THE WORK STATION AT A LOCATION SUCH THAT THE BALL IS UNSEATED BY THE ARTICLE WHEN THE ARTICLE IS IN THE DESIRED LOCATION, THUS CREATING A DIFFERENTIAL PRESSURE AT THE TRANSDUCER. A RESTRICTED ORIFICE IS LOCATED BETWEEN THE POINT OF CONNECTION OF THE VENT PASSAGE TO THE TRANSDUCER AND THE POINT OF CONNECTION OF THE TRANSDUCER TO ONE SIDE OF THE MANIFOLD TO PREVENT THE PRESSURE DROP PRODUCED BY THE VENTING FROM TRIGGERING ANY TRANSDUCERS OTHER THAN THE ONE TOW WHICH THE ACTIVATED PROBE IS CONNECTED.

公开(公告)号：US3606902A

公开(公告)日：1971-09-21

申请号：US3606902D

申请日：1969-05-15

Applicant: GEN ELECTRIC

Inventor： SHINN JEFFREY N ,  WOODSON CARL W

IPC: F15B5/00 ,  F15C3/12 ,  F15B13/02 ,  G05D16/00

CPC classification number: F15B5/00 ,  F15C3/12 ,  Y10T137/2322

Abstract: A BOURDON TUBE WHICH RESPONDS TO PRESSURE CHANGES IN A SENSED FLUID IS USED TO SELECTIVELY DEFLECT THE FLOW OF A WORKING FLUID BETWEEN VARIOUS PORTS OF A FLUIDIC RECEIVER.

公开(公告)号：US3604315A

公开(公告)日：1971-09-14

申请号：US3604315D

申请日：1969-06-05

Applicant: UNIVERSAL FILTERS INC

Inventor： ROSAEN NILS O

IPC: F15B5/00 ,  F15B21/04 ,  F01B3/00

CPC classification number: F15B21/041 ,  F15B5/00

Abstract: A fluid cylinder and piston assembly for use in a fluid filter assembly or the like, which includes a housing and a cover; a spring-biased compound piston and cylinder assembly is reciprocable within the housing on a stationary guide rod attached to the cover of the housing. The compound piston and cylinder assembly defines a pressure chamber having a plunger attached to the end of the guide rod disposed therein and the chamber is in communication in front of the plunger with a fluid inlet in the cover by means of restricted passages to move the compound piston and the cylinder assembly in one direction and the plunger is constructed such as to permit metered amounts of fluid to the plunger within the cylinder at a predetermined fluid pressure to move the compound piston and cylinder assembly in the other direction.