公开(公告)号：US07524311B2

公开(公告)日：2009-04-28

申请号：US10852228

申请日：2004-05-25

申请人： Trinh D. Phung ,  Daniel A. Boardman

发明人： Trinh D. Phung ,  Daniel A. Boardman

IPC分类号： A61M1/00 ,  G05D11/00 ,  F16K17/00

CPC分类号： A61M1/0031 ,  A61M1/0023 ,  Y10T137/2607 ,  Y10T137/7725

摘要： Featured is an automatic high-negative pressure relief valve and its use in combination with an apparatus for draining fluid from a body. In broad terms the negative pressure relief valve includes a biasing mechanism, a moveable member acted upon by the biasing mechanism and a seating surface. When the pressure within a chamber, in which a portion of the relief valve is in fluid communication with, is less than a predetermined negative pressure, the moveable member is moved by the biasing mechanism to sealing engage the seating surface and when the pressure is at or above the predetermined value, the restoring force of the biasing mechanism is overcome and the moveable member moves away from the seating surface. In an exemplary embodiment, the biasing mechanism is a spring, diaphragm or wave washer.

摘要翻译： 特色是一种自动高负压减压阀，其与用于从身体排出流体的装置结合使用。 在广义上，负压溢流阀包括偏置机构，由偏置机构作用的可移动构件和就座表面。 当安全阀的一部分与其流体连通的室内的压力小于预定的负压时，可移动构件通过偏置机构移动以密封接合就座表面，并且当压力处于 或高于预定值时，克服了偏置机构的恢复力，并且可移动构件远离座位表面移动。 在示例性实施例中，偏置机构是弹簧，隔膜或波形垫圈。

公开(公告)号：US06770062B2

公开(公告)日：2004-08-03

申请号：US10213785

申请日：2002-08-07

申请人： Trinh D. Phung ,  Daniel A. Boardman

发明人： Trinh D. Phung ,  Daniel A. Boardman

IPC分类号： A61M100

CPC分类号： A61M1/0031 ,  A61M1/0023 ,  Y10T137/2607 ,  Y10T137/7725

摘要： Featured is an automatic high-negative pressure relief valve and its use in combination with an apparatus for draining fluid from a body. In broad terms the negative pressure relief valve includes a biasing mechanism, a moveable member acted upon by the biasing mechanism and a seating surface. When the pressure within a chamber, in which a portion of the relief valve is in fluid communication with, is less than a predetermined negative pressure, the moveable member is moved by the biasing mechanism to sealing engage the seating surface and when the pressure is at or above the predetermined value, the restoring force of the biasing mechanism is overcome and the moveable member moves away from the seating surface. In an exemplary embodiment, the biasing mechanism is a spring, diaphragm or wave washer.