초록 ▼

A pressure relief valve trigger is formed by a diaphragm chamber communicating with fluid in a container being monitored by a pressure collapisible pin axially maintaining the diaphragm in the chamber in a given position. A flapper valve latch member released by movement of the diaphragm in response

A pressure relief valve trigger is formed by a diaphragm chamber communicating with fluid in a container being monitored by a pressure collapisible pin axially maintaining the diaphragm in the chamber in a given position. A flapper valve latch member released by movement of the diaphragm in response to collapse of the pin releases a flapper valve on the container to open in response to fluid pressure above a predetermined value biasing the diaphragm to a pin collapsed position.

대표청구항 ▼

A flapper valve for opening and closing an opening of a container containing fluid under greater than atmospheric pressure, comprising: a sleeve body axially secured to a container around an opening in the container; flapper valve means including a plate having an annular lip for sealing with the pe

A flapper valve for opening and closing an opening of a container containing fluid under greater than atmospheric pressure, comprising: a sleeve body axially secured to a container around an opening in the container; flapper valve means including a plate having an annular lip for sealing with the peripheral end portion of said sleeve body; a flapper valve latch arm radially secured to and projecting beyond the perimeter of said plate; fluid pressure trigger relief valve means including a collapsible pin having a predetermined buckting point supported adjacent said flapper valve; latch means on said trigger relief valve means for releasably connecting said flapper valve latch arm with said relief valve means; and, tube means for providing fluid communication between the container and the trigger relief valve means for releasing said latch means and the flapper valve latch arm in response to a predetermined fluid pressure generating an axial force collapsing the collapsible pin.