Abstract: The invention relates to a closure device of an orifice bounded by a neck especially for sealing the orifice of a container for chemical, petroleum or analogous products. This device comprises a cover capable of being fixed to the neck by rotation about an axis in a first direction, the cover comprising a base and locking means to prevent inadvertent removal of the cover, said device having locking means comprising an element rotatably mobile in relation to the cover, the rotatable element having on the one hand, interlock means for connecting this element onto the neck in an interlocked manner, these means being adapted to cooperate with complementary interlock means provided on the neck of the element and, on the other hand, means for clamping the rotatable element in relation to the cover.

Abstract: A storage container or module for explosives is described comprising a cylindrical storage body, a cover, and yieldable means which retain the cover to the storage body while permitting the formation of a passage between the storage body and the cover to vent gases during a detonation within the container. In a preferred embodiment, the storage module is sized to permit storage of up to about 6 pounds of explosives without causing a sympathetic detonation in an adjoining module.

Abstract: A long-term storage container including a box-like titanium receptacle having a titanium primary cover and sealed by a seal ring of malleable precious metal clamped between the cover and the receptacle, with titanium/ceramic valves in the cover for use in exhausting air from the receptacle and replacing it with argon gas, with titanium/precious metal back-up plugs sealing the valves after the air has been replaced. A titanium secondary cover is bonded to the receptacle by a titanium weld, reinforces the seal by the primary cover, and has a cuttable integral metal wall for ease of opening, and an inner titanium container is disposed in the receptacle with elongated, resiliently flexible ribs in its walls engaging similar ribs on the adjacent walls to provide cushioning against crushing and shocks.

Abstract: A viewport assembly having a tubular member, such as a ullage tube, with an internal cylindrical surface, a frame ring with an outer and an inner circumferential surface, the outer surface being defined in part by an outwardly radially extending flange portion and the frame ring having a plurality of spaced apart bolt holes therethrough, a gland ring having an integral forwardly extending tubular portion, the tubular portion being telescopically receivable on the frame ring outer circumferential surface rearwardly of the flange portion and providing an annular area externally of the frame ring between the frame ring flange and the gland ring tubular portion forward end, a transparent window disc sealably received within the frame ring, and a bolt for each of the bolt holes in the frame ring threadably engaging matching threaded bolt holes in the gland ring so that as the bolts are tightened the gland ring is drawn onto the frame ring, compressing the packing ring to expand it outwardly into sealing engagement

Abstract: An inner lid is attached to a vacuum chamber, covering an inner region of the vacuum chamber. An outer lid, also attached to the vacuum chamber, covers the inner lid, leaving a region between the inner lid and the outer lid. A gas conduit allows gas to flow between the inner region of the vacuum chamber and the region between the inner lid and the outer lid. A filter is placed in or immediately outside the gas conduit to prevent particles from entering the inner region of the vacuum chamber from the region between the inner lid and the outer lid. Since the pressure is the same on the top and bottom of the inner lid, the inner lid does not flex and thus does not rub against the vacuum chamber when the vacuum chamber is pumped down or vented up.

Abstract: The joint between two nearly rigid, mating walls has a tongue on one wall's surface and a groove on the other wall's surface which have special cross section shapes cooperating to resist penetration of the joint by fluids such as water. At least one of the walls is formed of a plastic material which deforms under compressive loading. The shape of the tongue includes sides thereof which intersect the end to form corners defining the longitudinal edges of the tongue. The groove has walls which converge toward each other at the bottom of the groove from a mouth wider than the width of the end of the tongue. The shape of the groove forms a line of contact with each of the tongue's corners when the tongue is mated with the groove. During assembly, the corners of the tongue are forced into the walls of the groove by some type of clamping mechanism so as to at least slightly deform at least one of the tongue and groove.

Abstract: An access door assembly for allowing access to the interior of a duct, including a mounting and support frame mounted at a selected location on the duct where an access port previously has been created in the duct, a cover releasably secured to the mounting and support frame by securing means, and a seal interposed between the cover and the mounting and support frame to prevent communication between the interior of the duct and the ambient when the cover is mounted on the frame.

Abstract: A fuel containment cover assembly comprising a fiberglass skirt with cast iron inserts molded into an integral unit. The inserts are located on the outer perimeter of the skirt and determine the flow of water from the cover to the ground. A pre-molded gasket extends about the interior perimeter of the cover. The gasket seats on the skirt assembly and seals the fuel containment device from the atmosphere. The cover is bolted to the fiberglass skirt and forms a drainage channel between the cover and the skirt.

Abstract: A safety enclosure providing quick and easy access to the processing area comprising a counter-weighted movable open ended cylinder capable of being raised and lowered and in this lowered position can be securely affixed by swing away clamps to a flanged pressure vessel head containing processing equipment for pyrotechnic materials whereby detonation of materials in the enclosure during processing contains and directs the blast upward through the blast venting protecting the workers and equipment external to said safety enclosure.

Abstract: An expendable closure assembly is provided for use (in multiple units) with a lockable pressure vessel cover along its rim, such as of an autoclave. This assembly is suited to variable compressive contact and locking with the vessel lid sealing gasket. The closure assembly consists of a thick walled sleeve insert for retention in the under bores fabricated in the cover periphery and the sleeve is provided with internal threading only. A snap serves as a retainer on the underside of the sleeve, locking it into an under bore retention channel. Finally, a standard elongate externally threaded bolt is sized for mating cooperation with the so positioned sleeve, whereby the location of the bolt shaft in the cover bore hole determines its compressive contact on the underlying gasket.

Abstract: A non-corrosive, non-metallic hatch apparatus is provided for use on a container having a container opening with a container flange surrounding the container opening. A hatch base includes a base flange complementary to and constructed to be bolted to the container flange. The hatch base has a hatch opening defined therethrough and includes a base thread surrounding the hatch opening. A non-metallic hatch lid includes a lid thread defined thereon which is complementary to the base thread so that the hatch lid can be attached to the hatch base to close the hatch opening by threaded engagement of the lid thread with the base thread.

Abstract: A manlid for a tubular pressure vessel has a one-piece pressed stainless steel skin having an upwardly facing undulating annular groove and a downwardly-facing tapered annular seal groove. The lid assembly is provided with an inner reinforcing member located in the upwardly facing annular groove and an outer, annular peripheral reinforcing member located across the inner reinforcing member and having one arm in abutment with the exterior surface of the seal groove. The inner and outer reinforcing members are formed into a number of angularly-spaced lugs for receipt of conventional threaded swing bolts for securing the manlid in position. The provision of an inner reinforcing member between the pressed skin and the outer reinforcing member allows a pressed skin from a lower pressure-rated manlid to be used in a higher pressure-rated design.

Abstract: A humidifier unit is used with a forced air heating system and includes a water reservoir, a water inlet connection to the reservoir, control means for maintaining the water level at a predetermined depth, and a heat exchanger for heating the water to produce steam. This reservoir has a removable top plate for closing the open top defined by the upper edges of side and end walls. Horizontal flanges extend inward from the upper edges of the reservoir side and end walls and act as a gasket base. Lips extend upward from the inner edges of those horizontal flanges and act as an internal horizontal gasket retainer. Finally, flanges depend from all sides of the top plate and are positioned to surround the upper edges of the side walls and to act as an external horizontal gasket retainer.

Abstract: A fluid containment apparatus including a fluid tank, a well wall and a closure system. The tank has a tank shell, which defines at least in part a fluid containment compartment and has a tank shell opening therethrough. The well wall is secured to the tank shell, positioned at the shell opening, recessed into the fluid containment compartment and defines at least in part a recessed well. The well wall has a well wall end and a well wall end opening. The closure system selectively opens and closes the well wall end opening. The closure system includes a well head connected to the well wall generally at the well wall end, a sealing gasket, an elliptical manway cover having a plurality of drilled and tapped blind holes, a separate fastening ring having a plurality of circumferential drilled through-holes and a clamp for clamping the manway cover and the fastening ring together and sandwiching the sealing gasket on the well head.

Abstract: A pressure vessel includes an enclosure adapted to contain a structural assembly in a pressurized environment. The vessel includes first and second enclosure components which together define the enclosure, the first enclosure component is movable relative to the second enclosure component which permits the enclosed pressure to be vented. Structure is provided for coupling between the first and second enclosure components, wherein the structure becomes inoperative when the pressure within the vessel reaches a predetermined excessive level thereby allowing the first enclosure component to separate from the second enclosure component. Structure for limiting the distance the first enclosure component may separate from the second enclosure component is also provided.

Abstract: A bulk material container with an opening has a door arranged to move over a rectilinear path for the opening and the closing of the opening. For moving the door over a rectilinear path to either open or close the opening, a threaded shaft is journalled for rotation within the container and is aligned axially with the center of the door. Means on the threaded shaft engage the door so that the door is moved over the rectilinear path by the rotation of the threaded shaft. A gasket surrounds the opening at the time of closure by the door. Continued rotation of the shaft for the closure of the door will cause the gasket to be compressed against the plate surrounding the opening. Rotation of the door is inhibited while the gasket is being compressed.

Abstract: So as to temporarily connect two elements, such as an artificial satellite lengthening piece and the body of this satellite, a device is used including a holding mechanism (22) of any structure and a freeing member (20) made of a form memory material. The holding mechanism (22) normally applies a holding mechanical tension between the elements. When it is desired to free these elements, the freeing member (20) is heated by, for example, a heating resistor (28) or by using solar energy, until it reaches the transformation temperature of the form memory material. The disposition of the freeing member (20) is such that its change of form suppresses the mechanical holding tension and creates a positive allowance between the elements.

Abstract: A system for sealing a case with a lid and method of forming a seal generally comprises a raised edge on the case, a shaped channel in the lid and a cross-sectionally shaped gasket that is laterally compressed by the side walls of the channel and seals the lid and case between the side walls of the channel and the case raised edge.

Abstract: Provision is made for a container which stores and shields radioactive material. Included in the container is an enclosure defining a hollow chamber in which radioactive material is storable. A closure assembly cooperates with the enclosure in such a manner that an internal plug thereof effects a preselected gas-impervious sealing engagement. The closure assembly includes a lug which is rotatable to urge the assembly into sealing engagement and which torsionally fails following achievement of the desired sealing engagement of the closure plug to thereby prevent the lug from being subsequently used to open the container. The container and closure members provides desired radioactive shielding.

Abstract: A weld-free all purpose seal for closed fluid systems is disclosed. This sealing device includes a ring body having a flanged top member for coupling to a pipe with a first plurality of apertures in spaced relationship therethrough. The ring body is recessed in the bottom member with a lip extending beyond the apertures. A flexible annular seal is provided having the reduced diameter from top to bottom adapted to be integral with the lip surface of the ring body. A wedge block is also provided with a planar top surface with a second plurality of apertures in spaced aligned relationship with the first plurality and continuing therethrough. The wedge block being of reduced diameter from bottom to top and adapted to receive the flexible annular seal. The wedge block may also have a diameter to interconnect with the recessed area of the ring body bottom member.

Abstract: A lid for a trash container is disclosed including two lid members each having peripheral edge portions conforming to the size and shape of a rim of a standard trash container. The peripheral edge portions include a depending flange adapted to engage opposite outside surface portions of the trash container at the rim when the two members are drawn together. Each member is provided with at least one hole opening into the trash container sized to receive a predetermined shaped and sized article. According to a preferred embodiment, one lid member includes at least one circular hole having a diameter to receive a cylindrical container having a diameter not greater than the diameter of a predetermined size of standard beverage container and the other lid member includes at least one hole having a diameter to receive a cylindrical container having a diameter not greater than the diameter of a different predetermined size of standard beverage container.

Abstract: A quick closure box is disclosed, in which the lid is fixed to the base by means of a small pitch screw engaged in an extension having a large pitch thread for engagement in a hole comprising thread portions.

Abstract: A portable quick opening storage vessel for safely storing explosive materials is presented. The relatively small cylindrical container is equipped with flat end-plates and external retaining rods which absorb most of the explosive energy. Modifications include a quick open assembly for opening and closing the container.

Abstract: An autoclave useful for pressure digestion of samples for chemical analysis, consisting of a closeable vessel containing the sample, which during operation sustains elevated temperatures and pressures. The autoclave has a PTFE (Teflon) beaker and lid, in direct contact with each other thus forming a tight seal with an excess-pressure release mechanism. The assembled vessel is held in a device that presses the sealing surfaces of the beaker and lid together, through pressure on a metallic lid support disc. The sealing surfaces of the beaker and lid are free-standing, which permits a direct release of excess-pressure and necessitates an extended clamping device for the lid support disc, which is fixed at a single point.

Abstract: In a high precision oil filter, a blind engagement of a threaded coupling with a supported shaft can be made without misalignment or cross threading in the coupling by providing, for a male threaded shaft having threads of a designed pitch and peak outer diameter, a mated female coupling having threads of the same pitch and size, and providing within the female coupling a cylindrical throat having an internal diameter equal to the peak outside diameter of the male coupling and a smooth cylindrical surface of a length at least equal to three times the thread pitch and preferably equal to five times the thread pitch.

Abstract: An oil pan, which is made of plastic, has a baffle pot insert on a bottom thereof which is formed by a one piece pot-shaped plastic component. This baffle pot insert extends from the exterior side of the bottom into the oil pan. Further, a collar of the baffle pot insert rests against a bottom section of the oil pan. Screws, which penetrate the collar and are turned into threaded metal inserts of the oil pan, are used for fastening the baffle pot insert to the oil pan.

Abstract: A stackable parallelepipedic container comprises an annular peripheral box-shaped profiled top edge portion (9, 10), which is provided at the top portions of the side walls of the container body and has a top portion for supporting a container cover (13). The container is stable, shockproof structure and can be handled in a simple manner and used to store solid and liquid materials. The container cover (13) consists of a flanged blank having lug-like extensions (22), which protrude from the side edges (21) of the cover and are disposed at right angles about the side edges (21) of the cover. Profiled metal strips (26) are welded to the extensions (22) and constitute an annular peripheral profiled edge portion (40) of the cover. The profiled edge portion (40) of the cover is supported by a peripheral sealing ring (12) on the top portion of the profiled top edge portion of the container body.

Abstract: An improved closure for covering and sealing a radioactive waste cask of the type having an opening circumscribed by a ledge is disclosed herein. The closure generally comprises an inner lid having an outer edge circumscribed by a gasket which is seatable over the ledge which circumscribes the opening, and an outer lid which is securable around the cask opening by either a screw-type or a breech-lock mechanism. In either case, the outer lid may be rotated into locking engagement with the container without imparting rotational forces to the gasket of the inner lid, thereby protecting the gasket from unnecessary rubbing forces. If the breech-lock mechanism is used, inner and outer lids may be rotatably connected to one another by a minimum of three suspension pin assemblies equidistantly spaced around the edges of both.

Abstract: A double lid arrangement, suitable for use in sealing irradiated fuel transport flasks, has inner and outer lids held together by securing members. If the securing members fail, the inner and outer lids operate individually, ensuring that the flask remains sealed.

Abstract: A timing-chain cover cap for a timing-chain cover comprising a generally semi elliptical cap body, the upper portion thereof being in circular shape while the lower portion thereof being in arcuate shape, and the bottom of the cap body is encircled by an integerally formed locating plate member except that part beneath the arcuate portion. By means of a plurality of holes provided on said locating plate member, the cap body can be threadingly fitted onto the timing-chain cover.

Abstract: A rubber-covered roll has a cylindrical roll core and a cylindrical sheath of rubber molded about and covering the roll core to provide a rubber-covered roll core. The roll also has a pair of metallic end cap cores and a pair of rubber jackets each molded about one of the end cap cores to partially enclose the same and provide a pair of rubber-jacketed end caps. The rubber-jacketed end caps are attached to opposite ends of the rubber-covered roll core to provide the rubber-covered roll. Each end cap core is annular-shaped and has an inner corner beveled at an approximate forty-five degree angle to define a continuous inner corner surface thereon.

Abstract: An improved lid for attachment to a sewage and waste water basin, which lid contains the safety provided by two sections having overlapping interlocking edges in which one section may be removed for access to the basin without the necessity of removing the other section.

Abstract: A wine cask has a circular metal base and a circular metal end cover. A plurality of staves arranged circumferentially and lying edge to edge are clamped by a circumferential clamp which retains them in a cylindrical configuration and a tension clamp extends in an axial direction between the base and end cover and clamps the staves between them.

Abstract: A Fuel Tank Access Plate (10) is provided for mounting on a fuel tank (12) formed of cross linked polyethylene. The access plate (10) includes an inner plate (14) which has a pair of seal ridges (24, 26) which engage the inner surface of the fuel tank in sealed engagement. The inner plate (14) and an outer ring (16) are secured together by screws (20) which clamp the access plate (10) to the fuel tank (12) and urge the seal ridges into sealing engagement with the fuel tank. The inner plate (14) is provided with ports (54, 62) for movement of fuel to and from the tank and also provides a mount for a combination visual fuel gauge and fuel sender assembly (34).

Abstract: An improved catalyst handling process and system is provided to safely, effectively, and automatically transport catalyst by remote control to and from resid hydrotreating units. The process and equipment feature computerized monorail equipment for efficiently transporting special fresh catalyst containers and spent catalyst containers. Various electronic equipment is provided to electronically detect the type of catalyst stored in the catalyst containers. Lift elevators, four-prong liftfork trucks, remote control tilting mechanisms, catalyst transfer lines, deoiler units, bridge cranes, and other transport vehicles, as described, can also be used.

Abstract: A portable liquid container has a four-sided shell enclosed by a bottom wall and a top wall. The bottom wall is formed by four triangular portions sloping downwardly to a delivery opening. The top wall has an upwardly sloping configuration with an enlarged opening in the middle thereof. The opening is normally covered by a lid. Two lifting channels and a delivery pipe and valve are located on the underside of the bottom wall. Four legs attached to the bottom wall support the container at a height sufficient to clear the delivery pipe and lifting channels. Leg positioners are located at the upper corners of the container and are arranged to receive the legs of a second like container stacked on top of a first container.

Abstract: An easily attachable one piece device that is a combination paint can pouring spout and handle portion for mounting on a can of paint. The device includes an optional paint return section. The handle is pivotably locked to a securing position.

Abstract: A domestic electric kiln which also can be used as an ordinary electric radiator, comprised of: a heat resistant frame body with electric coils equipped around in its inner wall; a cover with an opening in its center; a safety lock on the other side of the cover; a water pipe for generating steam; a supporting plate which also facilitates the spreading of the steam throughout the inner chamber; a shell with double walls which serves an an air-cooling mechanism and a temperature regulator. The device is characterized by continuous flow of both steam and hot air in the kiln chamber, thus, enabling one to make high quality products of chinaware or pottery by oneself at home.

Abstract: A sealing device is disclosed for sealing a securing device (17) which extends through adjacent flanges (7,9) of a shell (1) and of a head (3) of a fluid container. The sealing device includes an O-ring seal (23) which slidingly engages the securing device (17) for sealing the securing device relative to the flange (9) of the head. A carrier member (25) through which the securing device extends is urged towards the flange (9) of the head such that the O-ring seal (23) is urged into sealing engagement between the securing device (17) and the flange (9) of the head. The carrier member (25) defines a conical recess (35) for reception therein of the O-ring seal (23) such that when the carrier member (25) is urged towards the flange (9) of the head, the O-ring seal (23) is distorted by reaction between the carrier member (25), the securing device (17) and the flange (9) of the head so the securing device (17) and the flange (9) of the head are sealed relative to each other.

Abstract: An explosion proof electrical enclosure has a relieved joining flange at the junction between the cover and the body of the enclosure. The relieved portion provides an area reducing the bolt load in the event the enclosure is subjected to an internal explosion. As a result, fewer bolts may be used to join the enclosure, reducing the cost of the enclosure, increasing the convenience of access to the enclosure and reducing the labor required to remove or install the cover. The cover of the enclosure has increased stiffening structure at the corners so that the bolts in the corners of the enclosure may be eliminated.

Abstract: A shipping container is positively resealed by an auxiliary cover. The shipping container and auxiliary cover have a plurality of flanges with coupling holes. The flange holes are aligned and held in position by coupling pins with retaining means.

Abstract: A sewing machine frame and cover construction and fastening means for securing a warped cover in place over a frame opening without imparting frame distorting stresses. To obviate imparting stresses to the sewing machine frame as result of clamping a warped cover thereto, surfaces are provided at locations on the frame and cover chosen so that the surfaces engage simultaneously in spaced localized areas when the warped cover is positioned loosely over the frame opening. Fastening means located within the localized areas of engagement of these surfaces clamp the cover securely in place without disturbing the warp.

Abstract: Fluid cylinder of the repairable type having a plurality of tie rod members to retain a tubular member between a pair of end cap members is constructed so that the O-rings or gaskets normally used to seal the tubular member to the end caps can be eliminated. The tubular member is formed of a material such as stainless steel which is harder and has a higher yield strength that the material of the end caps, which is preferably an aluminum alloy. The mating surfaces are machined to be very smooth and flat so that the relatively thin wall of the tube will cause deformation of the end caps within their elastic limit, thus providing a metal to metal seal which permits the parts of the cylinder to be assembled and reassembled without danger of leakage. A surface finish on the mating parts of 32 microinches appears to be quite satisfactory.

Abstract: A toxic substance extraction cell includes a chamber for housing a heated solvent, a pair of gaskets adapted to be seated on the solvent housing between which is clamped a specimen to be tested; the space between the gaskets being liquid tight, and a cover for clamping the gaskets to the solvent housing. After assembly of the cell with the preheated solvent in the housing and the specimen to be tested between the gaskets, the cell is inverted and supported on a plurality of legs provided on the cover. The solvent is thus placed in contact with the specimen in order to dissolve any toxic substances contained within the specimen. The cell is then reinverted and supported on a suitable stand and allowed to cool, disassembled, and the solvent removed and tested for toxic residue.

Abstract: A heat insulated manually portable container for dispensing molten plastics material and having a movable piston within a cylinder, a heater for plastics material and a closure equipped with a locking means. The locking means is exteriorly positioned of the reservoir and comprises pairs of complementary screw-threaded members which are engageable through aligned slots in the closure and a body defining the cylinder. The members of each pair are movable along the slots to a quick release position which allows for withdrawal of the members through the closure slots upon opening of the closure.

Abstract: Waterproof electrical enclosures for the encapsulation of electrical and electronic components have a box-like base part to be fixed to a support surface by screws or like mounting fixtures and a sealing cover held to the base part by special fasteners located in special mounting points in the corners of the enclosure. Each mounting point has a single channel extending into the base part which in cross-section size corresponds to the size of the head of a mounting fixture and narrows to an aperture for the shaft of the mounting fixture in the bottom of the base part. There are fasteners fitted through the cover, each with a connection piece thereof larger than the shaft of the fastener, such piece being fixable in the top of a base part channel to connect the cover fastener to the base part.

Abstract: A lock for the lid of a container used in disposing of low specific activity, minimally contaminated waste material, with the lock so constructed so as to be releasable or permanent, and to give visual indication of either condition. The lock structure includes a lid contacting member that may be releasably or permanently connected to a latch plate insertable into a restraining member carried by the side wall of the container.

Abstract: A mold made of steel and intended for manufacturing tubular objects by a centrifugal casting concrete method is formed of two semicylindrical shells having longitudinal flanges to which locking wedges are welded. The locking wedges provided on the two opposing flanges have oblique surfaces cooperating with each other. The oblique surfaces of the locking wedges extend over a plane of separation between two flanges when the mold is in a closed position.

Abstract: The invention relates to a temporary sealing obturation panel, inside a vessel accessible only through a manhole, of a passage provided on its periphery with a support collar. It is constituted by: panels articulated by flexible fluid-tight hinges, bordered by lines of latching pins, stiffeners comprising lines of holes conjugate with the lines of pins, a frame in at least two articulated parts, with means for gripping the ends of the panels and the stiffeners against the support collar. The invention is applicable to the closing of primary circuit ducts opening into the water box of a steam generator of a pressurized water nuclear boiler.

Abstract: The invention relates to a temporary sealing obturation panel, inside a vessel accessible only through a manhole, of a passage provided on its periphery with a support collar. It is constituted by: panels articulated by flexible fluid-tight hinges, bordered by lines of latching pins, stiffeners comprising lines of holes conjugate with the lines of pins, a frame in at least two articulated parts, with means for gripping the ends of the panels and the stiffeners against the support collar. The invention is applicable to the closing of primary circuit ducts opening into the water box of a steam generator of a pressurized water nuclear boiler.