Abstract: An inflatable packer assembly includes a cylindrical mandrel with a cylindrical valve body concentrically disposed about the mandrel. The valve body includes an inlet communicating with an interior of the mandrel and an outlet for directing fluid to an inflatable element of the packer assembly. First and second axial bores, containing first and second pistons, respectively, are disposed in said valve body and communicate with an end surface thereof. The first bore also communicates with said inlet. A first port connects the first and second bores. A second port connects the second bore and the outlet. The first piston is held in a first position blocking said first port until a pressure differential across the first piston reaches a first level at which the first piston is released and is moved to a second position allowing fluid communication between the inlet and the first port.

Abstract: An apparatus for starting air bag devices in automobiles at the time of an accident or collision of an automobile, if the shock resulting from such collision is such as will injure the riders in the automobile. The apparatus includes a weight body adapted to detect the magnitude of the shock and to slide at the time of collision of the automobile. A detecting member is engaged with the weight body to operate with movement of the weight body, and a link mechanism is operated by the detecting member, such that the air bag device will be started mechanically.

Abstract: An entirely mechanical air bag device for cars wherein a frangible lid seals a container having gas under pressure therein. The frangible lid is supported by a pressing lid in contact with a link mechanism. During a crash, an impact detecting assembly releases the link mechanism which in turn releases the pressing lid which permits the frangible lid to be fractured by the high pressure gas to inflate the bag.

Abstract: A heat actuated valve comprises a base adapted to be mounted on a fire extinguisher container. The base includes a passsage communicable with the container interior. A pair of stop fingers extend forwardly from the base. A fusible element interconnects the stop fingers. The base, stop fingers and fusible element are of one-piece, integral construction. A plunger is slidably mounted in the passage and includes a passage-blocking portion which blocks the passage when the plunger abuts the stop fingers during a fire sensing mode of operation. The plunger is slidable rearwardly to shift the passage-blocking portion to a first passage-opening position to allow the container to be filled. The plunger is operable, in response to melting of the fuse, to spread the stop fingers apart and travel forwardly sufficiently to shift the passage-blocking portion to a second passage-opening position, enabling the container contents to be discharged.

Abstract: A partition arrangement for rocket motors with at least two mutually independent thrust stages and nozzle and nose sides. The partition arrangement includes a partition member separating a combustion chamber on the nozzle side from another chamber on the nose side with the partition member being provided with at least one flow aperture therein. A sealing element is disposed on the nozzle side for sealing the at least one flow aperture of the partition member with the sealing element being displaceable for freeing the at least one flow aperture of the partition member and being maintained within the another chamber on the nozzle side upon displacement. At least the partition member and/or the sealing element is provided with only one flow aperture for permitting propellant gases from the nose side combustion chamber to enter the another chamber on the nozzle side only in a central direction.

Abstract: Safety device for a compressed gas tank comprising a membrane influenced by an elastic effort and resting simultaneously on two concentric seats. It is characterized in that the applying of the pressure to the seat having the smallest diameter corresponds to a sealing position and that the applying of the pressure to the seat having the greatest diameter causes a sudden opening of the device.

Abstract: A well tubing drain including a ported mandrel interposed in the tubing string of a pumping well, and a sleeve initially covering and sealing the mandrel ports, the sleeve being subject to a predetermined internal fluid pressure applied through the ports to shear a retainer pin and cause motion of the sleeve to open the ports.

Abstract: A fluid supply for an occupant restraint system includes a pair of concentric cylindrical vessels defining inner and outer fluid chambers in fluid communication with each other and with a discharge passage which is normally closed by a shearable member and with expandable confinement. A valve member is slidingly carried within the inner cylinder, exposing one end of the valve member to the inner fluid chamber, and partially defines a control pressure chamber providing metered communication therefrom to the inner fluid chamber. The valve is responsive to the difference in pressure between the control chamber and the inner chamber to move from a position restricting flow from the outer fluid chamber to the inner to a position allowing relatively free flow.A shearing member is also provided for opening the discharge passage in response to the occurrence of a collision.