公开(公告)号：US6102459A

公开(公告)日：2000-08-15

申请号：US39753

申请日：1998-03-16

Applicant: William V. Pabst ,  Bertrand S. De Pecker

Inventor： William V. Pabst ,  Bertrand S. De Pecker

IPC: B65G47/91 ,  B66C1/02

CPC classification number: B66C1/0218 ,  B65G47/91 ,  B66C1/0293 ,  Y10S294/907

Abstract: The present invention is a vacuum valve assembly that creates vacuum on demand. The assembly has a body with a fluid inlet port, a fluid outlet port, a fluid flow channel extending between the fluid inlet port and the fluid outlet port, a vacuum port, a low pressure channel extending between the vacuum port and the fluid flow channel, a sensing member receiving channel, the sensing member receiving channel extending between the fluid flow channel and the low pressure channel, and a flow occlusion chamber that intersects the fluid flow channel. There is a sensing member with a fluid flow regulation portion and a sensing portion. The sensing portion is adapted to be movably received by the sensing member receiving channel. The sensing member is movable from a closed position to an open position. When the sensing member is in the closed position the fluid flow regulation portion closes the fluid flow channel to the flow of fluids, and when the sensing member is in the open position the fluid flow channel is open to the flow of fluids. When fluids flow through the flow channel a low-pressure condition is created within the low-pressure channel.

Abstract translation: 本发明是一种根据需要产生真空的真空阀组件。 组件具有主体，该主体具有流体入口端口，流体出口端口，在流体入口端口和流体出口端口之间延伸的流体流动通道，真空端口，在真空端口和流体流动通道之间延伸的低压通道 ，感测构件接收通道，在流体流动通道和低压通道之间延伸的感测构件接收通道，以及与流体流动通道相交的流动闭塞室。 存在具有流体流动调节部分和感测部分的传感部件。 感测部分适于被感测构件接收通道可移动地接收。 感测构件可以从关闭位置移动到打开位置。 当感测构件处于关闭位置时，流体流动调节部分将流体流动通道关闭到流体流动，并且当感测构件处于打开位置时，流体流动通道对流体流开放。 当流体流过流道时，在低压通道内产生低压条件。

公开(公告)号：US06443175B1

公开(公告)日：2002-09-03

申请号：US09616425

申请日：2000-07-14

Applicant: William V. Pabst

Inventor： William V. Pabst

IPC: F16K3112

CPC classification number: F04F5/52 ,  Y10T137/0379 ,  Y10T137/0396 ,  Y10T137/7761 ,  Y10T137/8601 ,  Y10T137/86075 ,  Y10T137/87201

Abstract: The present invention is a pressure feedback circuit for use with a vacuum pressure control circuit. The pressure feedback circuit detects the occurrence of, and controls the generation of vacuum pressure under, External Override Conditions (“EOCs”). During EOCs, which typically include emergency stop conditions or loss of electrical power to the vacuum pressure circuit, the pressure feedback circuit senses the condition of the output vacuum pressure port and supplies feedback to the vacuum pressure control circuit thereby maintaining the last output state of the vacuum pressure control circuit.

Abstract translation: 本发明是与真空压力控制电路一起使用的压力反馈电路。 压力反馈电路检测外部超驰条件（“EOC”）下的真空压力的产生和控制。 在通常包括紧急停止条件或真空压力回路的电力损失的EOC期间，压力反馈电路感测输出真空压力端口的状况并将反馈提供给真空压力控制电路，由此保持最终的输出状态 真空压力控制电路。

公开(公告)号：US06517050B1

公开(公告)日：2003-02-11

申请号：US09966862

申请日：2001-09-28

Applicant: William V. Pabst

Inventor： William V. Pabst

IPC: F16K31383

CPC classification number: B65G47/91

Abstract: Disclosed is a two way valve that has a valve chamber having a first valve chamber opening bounded and a fluid flow opening. A chamber shuttle, adapted to travel within the valve chamber, is characterized by a chamber shuttle cavity and has a first chamber shuttle cavity opening and a second chamber shuttle cavity opening. A shuttle-plug that is biased by a force established within the valve closes the chamber shuttle cavity to establish a closed fluid-flow state. The chamber shuttle is also movable against the biasing force thereby resisting the shuttle-plug by a structure fixed relative to the valve chamber and opening the chamber shuttle cavity to establish a second fluid-flow state. A preferred embodiment of the invention is incorporated in a valve construction of components that incorporate aspects of the disclosed invention.

Abstract translation: 公开了一种双向阀，其具有阀室，该阀室具有开口有限制的第一阀室和流体流动开口。 适于在阀室内行进的腔室梭子的特征在于腔室梭腔，并且具有第一室梭腔开口和第二腔穿梭腔开口。 通过在阀内建立的力而偏置的梭塞关闭室穿梭腔以建立封闭的流体流动状态。 室梭也可以抵抗偏压力移动，从而通过相对于阀室固定的结构抵抗梭塞，并打开腔室梭腔以建立第二流体流动状态。 本发明的一个优选实施例结合在组件的阀门结构中，其包括所公开的发明的各方面。

公开(公告)号：US07374217B2

公开(公告)日：2008-05-20

申请号：US10267168

申请日：2002-10-09

Applicant: William V. Pabst

Inventor： William V. Pabst

IPC: B25J15/06 ,  F16K31/383

CPC classification number: B65G47/91

Abstract: A check valve for pick-and-place applications includes a valve housing with a chamber, and a chamber shuttle with a cavity. The chamber shuttle is accessible from outside the chamber and adapted to receive a suction head. The chamber shuttle is adapted to travel within the chamber and establish “valve-open” and “valve-closed” states based upon the contact of the suction head upon the work piece surface. Blow off of the work piece surface is allowed by a fluid flow channel interposed between the suction head and the chamber shuttle cavity.

Abstract translation: 用于拾取和放置应用的止回阀包括具有室的阀壳体和具有空腔的室梭。 腔室梭可从室外进入，适于接收吸头。 腔室梭适于在室内行进，并且基于吸头在工件表面上的接触而建立“阀打开”和“闭阀”状态。 通过介于吸头和室梭腔之间的流体流动通道允许工件表面的吹走。

公开(公告)号：US06786228B2

公开(公告)日：2004-09-07

申请号：US10268529

申请日：2002-10-09

Applicant: William V. Pabst

Inventor： William V. Pabst

IPC: E03B500

CPC classification number: F04F5/52 ,  Y10T137/0396 ,  Y10T137/7761 ,  Y10T137/86083

Abstract: The invention is summarized as a method and apparatus for providing a memory function for an air economizing fluid pressure circuit. A latchable or detented valve is used to control an air circuit that defaults to permit the generation of vacuum pressure, but is also cable of ceasing the generation of vacuum pressure generation to air economize. The invention may also include blow off capability for the air circuit.

Abstract translation: 本发明总结为用于为空气节约流体压力回路提供记忆功能的方法和装置。 使用可锁定或止动阀来控制空气回路，该空气回路默认允许产生真空压力，但也是停止产生真空压力以产生空气的电缆。 本发明还可以包括空气回路的吹出能力。