Abstract:
A safety quick connection for connecting a source of fluid to a working element has a body connectable to the fluid source, a fitting member connectable to the working element and movable relative to the body, and a locking member, the body, the feeding member and the locking member being formed so that under the action of fluid flowing through the connection from the fluid source to the working element a part of the body engages with a part of the locking member and prevents opening of the connection.
Abstract:
A coupling system is disclosed for coupling fluid lines, which has no exposed moveable parts. The coupling system is resistant to accidental uncoupling due to vibration, impact or other physical hazards, resistant to dirt, debris, spills and other environmental hazards, can be coupled and uncoupled quickly and easily, and is resistant to accidental uncoupling.
Abstract:
The connection (5) comprises, between its screw-threaded connection portions, a stay (9) comprising at least one pair of openings (10) spaced by a predetermined distance and serving for the securement to each other, by rivets (19), of a retaining strap (11) of L shape with two wings cut out in U shape, the front wing (12) also having a pair of openings spaced by the same distance as the openings of the stay (9), as well as a marking identifying the gas corresponding to said spacing. Use in containers for cryogenic fluids.
Abstract:
A fluid coupling (60) for connecting fluid conduits includes a thermally sensitive member (30) and a coupling nut (40) which fit together for conjoint operation. The thermally sensitive member (30) has a resiliently expanded end (36) which engages a cooperating structure (14) on a fluid-carrying member (10) to retain it in place while permitting relative rotation. The thermally sensitive member (30) has a flange portion (34) that, when assembled, is in axial shear between the coupling nut (40) and the fluid-carrying member (10). When exposed to excessive temperature, the flange portion (34) softens, allowing the fluid-carrying member (10) to move and an in-line valve to close, thus shutting off the flow of gas. In another embodiment, the thermally sensitive member (84) is a bushing that is received within the plug body (80) of a quick-disconnect type coupling. This thermally sensitive bushing is held in axial shear between a different type of fluid-carrying member (82) and an internal shoulder (100) of the plug body (80). When exposed to elevated temperature, the bushing softens to allow the fluid-carrying member (82) to move inside the plug body (80), thus permitting a valve member within an adjoining coupling to shut off fluid flow.
Abstract:
A special safety device prevents two fluid lines from being connected if the fluid in the first line can not be safely received by the second line. The danger of connecting the two lines may be, for example, because the fluid carried by the first line presents a safety hazard if received by the second line, or because the fluid in the first line is at too high a pressure or temperature to be safely received by the second line. The safety device includes first and second cams which are connected to the two lines. The first cam has cam keys in a first pattern which is indicative of characteristics of the fluid transmitted by the first fluid line, while the second cam has cam keys in a second, complimentary pattern which is indicative of characteristics of the fluid which may be safely received by the second fluid line. The first and second cams are positioned with respect to the male and female couplings of the fluid lines such that the male and female couplings can not even be partially engaged unless the first and second patterns match one another in a complimentary manner sufficiently to allow the first and second cams to pass one another.
Abstract:
An inexpensively manufactured discrete keying device for connector, plugs and sockets of standard types. Two or more mating grooves and finger members are coded by discretely spacing them circumferentially. The grooves are axial and are cut into the turnable captive internally threaded body shell member of one matable subassembly of the connector arrangement and the finger members are radially inwardly directed projections having matching circumferential spacing within the wall of a sleeve member associated with the other connector subassembly. Where a plurality of such connectors are adjacent to each other, mismating is prevented by separate finger and groove spacings for each corresponding connector assembly.
Abstract:
A pipeline includes a plurality of units each consisting of a pipe section, a netting of longitudinal inserts about the pipe section and a slotted primary outer jacket the edges of which are folded down into an outer groove of one of the inserts which is then filled with a hardenable material providing fluid-tight closure. The jacket section is shorter than the inserts, which are shorter than the pipe section whereby each unit has stepped ends. The ends of the pipe sections of adjacent units are welded together with the grooved inserts aligned, and joining sections of the netting are wrapped about the pipe ends. Secondary sections of the slotted jacket, previously placed over the primary jacket sections of the units, are then slid between the primary jacket sections and secured by folding down the edges thereof into the aligned grooves of the grooved inserts. Then the grooves along the secondary jacket sections are filled with hardenable material and flexible joints are bound between the adjacent ends of the jacket sections.