Abstract: PCT No. PCT/US79/00845 Sec. 371 Date Oct. 15, 1979 Sec. 102(e) Date Oct. 15, 1979 PCT Filed Oct. 15, 1979A fire extinguishing system including a vessel (10) for receipt of a fire extinguishing material and having an outlet (12) closed by a flow control mechanism (14). A linkage (20,30) provides for suitable operation or actuation of the flow control mechanism (14). A double rod ended cylinder 36 is employed for operating the linkage in response to a remotely generated pressure signal or in response to manual actuation by a manual actuator (66) coupled to one of the rod ends (38).

Abstract: PCT No. PCT/US79/00665 Sec. 371 Date Aug. 30, 1979 Sec. 102(e) Date Aug. 30, 1979 PCT Filed Aug. 30, 1979A shear seal assembly (65) has an inner sleeve (66) and an outer sleeve (68) with an elastomeric material bonded therebetween. One sleeve (66,68) has a circumferential groove (74), formed in the exposed wall (76) thereof in which groove (74) an O-ring (78) nests. The assembly is mounted between two telescoping members (28,38) that have limited relative rotation. The sleeve without the groove (74) is press fit on or is one member (28,38) and the sleeve (68) with the groove (74) will be spaced from the other member (28,38) so that the O-ring (78) will extend from the groove (74) into sealing contact with said other member (28,38). Clips or retainers (82) are provided for seating the grooved sleeve (66,68) to said other member (28,38) whereby limited relative rotation or oscillation between the members takes place without rupturing the elastomeric material.