초록 ▼

In a nozzle dam assembly wherein a flange ring is affixed around a circular nozzle opening in a chamber wall, a support frame spans and is in non-threaded connection with the ring by releasable pins which carry under tension any load on the frame directed axially out of the nozzle into the chamber,

In a nozzle dam assembly wherein a flange ring is affixed around a circular nozzle opening in a chamber wall, a support frame spans and is in non-threaded connection with the ring by releasable pins which carry under tension any load on the frame directed axially out of the nozzle into the chamber, and a circular dam with a sealing diaphragm disposed over it is attachable to the frame with its rim within the nozzle so that inflatable peripheral sealing means on the diaphragm effect the desired seal of the nozzle independent of the aforementioned axial load.

대표청구항 ▼

In a nozzle dam assembly which includes a chamber and a wall defining part of the chamber, a circular opening in the wall, a nozzle communicating with the chamber through the circular opening in the wall, a flange ring affixed to the wall around the opening, and a dam with a sealing diaphragm attach

In a nozzle dam assembly which includes a chamber and a wall defining part of the chamber, a circular opening in the wall, a nozzle communicating with the chamber through the circular opening in the wall, a flange ring affixed to the wall around the opening, and a dam with a sealing diaphragm attachable to the ring to seal the opening, the improvement which comprises a. a collapsible support frame for the dam comprising i. cross bars adapted to span the ring, and ii. cross arms pivotably and pantographically attached to the cross bars; and b. releasable pin means for making a non-threaded connection between the frame and ring and for carrying under tension any load on the frame directed axially out of the nozzle comprising i. respective bayonet pins on the ends of the cros bars adapted to be parallel to the nozzle axis.