Abstract: A protective valve system including a pipe extending into the tank through a wall with a seat positioned in the pipe inside of the tank and a safety plug movable for releasable and sealingly seating on the seat. A first valve is positioned outside the tank and connected to the pipe and a second valve is positioned in the pipe inside of the tank. A valve operator positioned inside of the tank is connected to the second valve but is exposed to the exterior of the tank for actuation.

Abstract: The invention is a normally open safety shut-off valve, totally within a vessel of pressurized product, which vessel requires a safety pressure relief valve. This normally open safety shut-off valve is placed between the safety pressure relief valve and the product in the vessel and can be closed by a person of average intelligence without special tools in the event that an uncontrollable leak develops in the said relief valve, later to spontaneously reopen if the pressure of the product in the vessel rises to a dangerous high level. This is of particular value in the containment of hazardous gases or liquids under pressure in a transportation vessel, without diminishing existing safety pressure relief valve principals.

Abstract: A tube seat installation device having a piping connecting part of a special coupling joint being attached on one side of the input piping opening or the output piping opening of the fluid pressure valve while at the same time having a cylindrical part of the special coupling joint fitted into a connecting hole of the tube seat via an O-ring sealing element. The piping connecting part of the special coupling joint is attached to the other side of an outlet piping opening or an inlet piping opening. The cylindrical part is fitted into the introduction part of the hollow body via an O-ring sealing element, or the introduction part of the hollow body is attached to the piping opening via an O-ring sealing element. A flange part of this hollow body is faced and fixed to another connecting hole of the tube seat via O-ring sealing element to which a fluid pressure valve is fixed by being sandwiched by the hollow body.

Abstract: An internal tank valve for a tank having an opening of a valve seat supported from the tank, a valve element support connected to the valve seat and extending into the interior of the tank, and a sealing valve element inside of said tank rotatably supported from the valve support for coacting with the valve seat for opening and closing the valve. A valve operator is supported from the tank and extends to and is connected to the seating element and extends to the outside of the tank and includes means for rotating the sealing valve element. The internal valve and operator may be repaired and replaced from outside of the tank.

Abstract: A mechanical hydraulic dampening device (100) having kinetic energy dissipating baffles (2) in its interior with no moving parts, which device (100) is included in a moving tank car carrying a liquid load, such as for example a railroad tank car (6), having a rupture disk assembly (9) at the top of the tank (6) to prevent fracturing of the tank (6) due to hydraulic hammer action, the device (100) being located in line between the rupture disk and the liquid load. When the tank (6) is suddenly moved, the shifting liquid load passes through the pipe-like device (100), impacting against a series of longitudinally spaced, opposed, diverging, upwardly angled, flat plates (2) each extending across more than 50% of the interior of the pipe body (1) of the device (100), causing its energy and the hydraulic hammer action to be dissipated.

Abstract: A mechanical hydraulic dampening device having kinetic energy dissipating baffles in its interior with no moving parts, which device is included in a moving tank car carrying a liquid load, such as for example a railroad tank car, having a rupture disk assembly at the top of the tank to prevent fracturing of the tank due to hydraulic hammer action, the device being located in line between the rupture disk and the liquid load. When the tank is suddenly moved, the shifting liquid load passes through the pipe-like device, impacting against a series of longitudinally spaced, opposed, diverging, upwardly angled, flat plates each extending across more than 50% of the interior of the pipe body of the device, causing its energy and the hydraulic hammer action to be dissipated.

Abstract: A valve attachment flange comprising the lading outlet for a railway tank car is placed in an insulative space between a heat element, heated fluid medium carrying heat ducts and the bottom of the car. The outlet is surrounded by a heat chamber in fluid flow communication with the heat ducts of the heat elements whereby the heat chamber surrounding the outlet is efficiently heated simultaneous with the heating of the lading by the heat element to promote flow of lading from the tank. This arrangement promotes fast efficient heating of the lading on top of and adjacent the valve and enables a valve attached to the recessed attachment flange to extend downwardly from the bottom of the car a lesser amount than conventionally mounted valves.

Abstract: A leak containment kit for tank cars is disclosed. The kit is bolted to the manway cover of the tank car and surrounds all of the valves mounted on the manway cover. The kit provides means to connect each of the valves on the manway cover with a valve mounted on the external of the main body of the leak containment kit.

Abstract: A heated railway tank car includes heating conduits arranged on the tank and filled with a heating fluid and coupled to an electrically driven pump and heat exchanger in a closed-loop system for heating and continuously recirculating the heating fluid through the conduit. The tank car is adapted to be electrically interconnected with adjacent cars and the electric power may be provided from the locomotive, from an axle generator and alternator combination on the tank car, or from rechargeable batteries on the tank car charged by either terminal facilities or axle-mounted or locomotive-mounted generator means.

Abstract: In accordance with the present invention, a swivel fitting is used to connect the glad hand to the rigid portion of the brake system on the car. The swivel fitting includes a freely rotatable swivel extension which extends through an opening in a support structure. A rigid curved pipe section is connected to the swivel extension with a 45.degree. elbow. The rigid pipe section and 45.degree. elbow may swivel about a horizontal axis. The curved pipe extends upwardly and inboard of the car where it joins brake piping extending inboard of the car. A conventional end cock is attached to the swivel fitting with appropriate fasteners. A 45.degree. elbow is used to removably connect the glad hand of the train line to the end cock.

Abstract: A vehicle for transporting a liquid commodity has a combined frangible disc safety vent and siphon unloading pipe nozzle. The siphon unloading pipe passes through a hole in the vehicle that is surrounded by the nozzle side wall. The hole is dimensioned to enable the nozzle to act as a surge chamber that dissipates transient pressure surges and thereby prevents premature breaking of the frangible safety vent disc.

Abstract: In accordance with the present application, a bottom operable tank car valve seat and skid are made in separate pieces. The skid is welded to a skid mounting flange which is located below a tank car universal mounting flange. The skid mounting flange is attached to the universal mounting flange with fasteners. A ring is inserted into a slot provided in the upper, inner surface of the universal flange. Fasteners inserted into existing threaded openings in the universal flange hold the ring in place. A valve seat is mounted on the inner surface of the universal flange and the ring. The ring is held in place with fasteners which extend through the universal flange into the ring. These fasteners also hold in place an operator retainer to maintain the lading valve operator spaced from the walls of the valve seat and vertically fixed. With this arrangement the skid can be removed separately from the outlet.

Abstract: A railway train made up of individual tank cars for interconnection and fluid communication with associated-like tank cars by flexible connecting conduits, wherein each tank car includes a wheeled chassis structure provided with coupling means for coupling adjacent tank cars. A tank is mounted on the chassis structure and has two lading conduits respectively coupled to the tank and in fluid communication therewith, each of the lading conduits having an outer end extending outwardly from the tank adjacent to the top thereof. Each of the lading conduits is connected to a vent conduit and to an eduction conduit with the vent conduit extending into the tank and having the inner end thereof terminating a predetermined distance from and near the top of the tank and with the eduction conduit extending into the tank and having the inner end thereof terminating near the bottom of the tank.

Abstract: A railway train includes a plurality of interconnected tank cars, each car comprising a tank provided with two lading conduits in the top thereof extending thereinto for communication with the interior thereof and each having an outer end extending above the tank, and toward the adjacent end thereof, the lading conduits of adjacent cars being interconnected by flexible connecting conduits. A crane is pivotally mounted on the top of one of the lading conduits on each car for maintaining the associated flexible connecting conduit at an elevation higher than that of the associated conduit coupling means to cause drainage of all the lading from the flexible conduit into the associated tanks.