Abstract: A gas delivery system for a ceramic showerhead includes gas connection blocks and a gas ring, the gas connection blocks mounted on the gas ring such that gas outlets in the blocks deliver process gas to gas inlets in an outer periphery of the showerhead. The gas ring includes a bottom ring with channels therein and a welded cover plate enclosing the channels. The gas ring can include a first channel extending ½ the length of the gas ring, two second channels connected at midpoints thereof to downstream ends of the first channel, and four third channels connected at midpoints thereof to downstream ends of the second channels. the cover plate can include a first section enclosing the first channel, two second sections connected at midpoints thereof to ends of the first section, and third sections connected at midpoints thereof to ends of the second sections.

Abstract: An underground fluid storage tank hold-down system for holding down an underground cylindrical fluid storage tank in a hole that has been excavated, the underground tank hold-down system comprising a multiplicity of paired hold-down straps having a first end and a second end. A multiplicity of paired deadmen anchors are adapted to be placed to either side of the tank when the tank is in the hole. The deadmen anchors each have anchor upstanding loops. A tank hold-down assembly is provided comprising a take-up coupler assembly having a pair of arched sections, having hooks thereon, including a first arched section and a second arched section and a threaded engagement assembly. The threaded engagement assembly includes a threaded member and a receiving member adapted to receive part of the threaded member. The straps engage the hooks and the anchor upstanding loops.

Abstract: A yoke type quick opening closure is provided. A torque bolt shares loads of the yoke with a drawbolt, and a separate safety bolt is provided. A common wrench interface feature is also provided.

Abstract: A cover and method for covering openings an particularly openings initially intended to cover door knob openings and lock set openings of a modified door which are required to be covered for aesthetic and security reasons. In one embodiment, the cover for a door knob hole is an integral stack of disks wherein the largest outermost disk covers the opening when centered by the second disk that fits snugly inside the opening. A bridge fits inside the lock-set cavity to which a cover over the lock cavity is bolted.

Abstract: A system is provided for securing a cover having a first surface onto a chassis having a rim, the rim having a second surface. The system comprises a clamping rail and a fastener coupled to the rail. The clamping rail is configured to form a loop that circumferentially engages the first surface and the second surface and, when constricted, produces a first force substantially coplanar with the loop. The fastener is configured to constrict the rail, the rail and the first and second surfaces configured to produce a second force having a component substantially orthogonal to the loop when the rail is constricted.

Abstract: Interlocking end lugs are provided in an improved closure split ring assembly for steel drums. The interlocking end lugs facilitate the tangential alignment of the ring to seal the lid on the drum and lock it in place.

Abstract: One aspect of the present invention includes a sealing ring having a split-ring annular band which includes a first and second end. A first tab is disposed at the first end, with the first tab extending away from the annular band. The first tab also includes a first threaded aperture. A second tab is disposed at the second end, with the second tab also extending away from the annular band The second tab also includes a second threaded aperture. Additionally, a thread of the first aperture is different from a thread of the second aperture. Further, the sealing ring includes a fastener threadedly engaged with the first and second apertures. Rotation of the fastener adjusts a radial dimension of the annular band.

Abstract: A cable sealing end includes a base fitting configured for mounting on a base; a top fitting configured for securing an overhead conductor; an insulating body made of polymeric material; a conductive connection device configured to form a connection between a cable conductor and the top fitting; and a supporting element. The supporting element includes an elongated metal body; a top plate disposed on the elongated metal body and securable to the top fitting; and a metallic cylindrical structural component. The structural component projects into an interior of the insulating body and has a base flange disposed adjacent to the base fitting. The structural component has a length of one quarter to one third of a length of the insulating body. An entire length of the elongated metal body and the structural component, with the exception of the base flange, are embedded in the insulating body.

Abstract: The instant disclosure relates to an apparatus and method for securing a watthour electrical meter to a socket meter box. A locking ring comprises a divided annular band fitted with tab members configured to accept a variety of ring fasteners. The tab members support a variety of ring fastener and fastener receiver assemblies, and have complementary mating surfaces that substantially mate around the head of an installed meter so that the locking ring is tamper-resistant. The ring fastener and fastener receiver have a number of complementary apertures disposed to receive either wire seals or other locking mechanisms.

Abstract: Interlocking end lugs are provided in an improved closure split ring assembly for steel drums. The interlocking end lugs facilitate the tangential alignment of the ring to seal the lid on the drum and lock it in place.

Abstract: A method and container for transporting and storing chemical compounds susceptible to exothermic decomposition. The method including placing the chemical compounds in a container where the opening and the rim of the container are sealed by means of a cover and a clamping strap, and the clamping strap is designed to release the cover from the rim of said container at a predetermined level of superatmospheric pressure in the container to open up the entire top for relief of the superatmospheric pressure. When exothermic decomposition occurs, the invention provides substantial and instant pressure relief, which, in turn, avoids cracking and/or fragmentation of the container.

Abstract: An annular closure ring and bolt assembly for securing a lid or cover in sealed relation with an open-head drum is provided in which an annular split closure ring is closed by tightening a bolt between a pair of laterally spaced lugs attached to opposite ends of the closure ring. Each lug includes a hole to receive the bolt wherein at least one lug hole is unthreaded, and the bolt includes a shoulder or sleeve such that when the bolt is inserted into the unthreaded hole, the shoulder fits substantially flush with that unthreaded hole. The bolt engages either a threaded hole in one of the lugs or a jam nut to draw the lugs together and tighten the closure ring around the drum. The tight engagement between the unthreaded hole of the lug and the shoulder of the bolt thereby reduces movement of the bolt within the unthreaded hole to secure the connection of the ring around the open-head drum.

Abstract: A locking device is disclosed for interlocking two members having aligned openings extending therethrough. The device includes a hollow cap and a pin with an enlarged head at one end and a nose at the opposite end. The pin is insertable through the aligned openings of the members, with its nose received in interlocked engagement within the cap, and with the two members captured between the cap and the enlarged head of the pin. A frangible portion of the pin is severable in response to relative rotation between its nose and enlarged head to thereby destructively disassemble the locking device.

Abstract: A one-piece stainless steel rim for mating a meter cover and base and method of making the same is disclosed. The stainless steel mating rim has integral therewith the various attachment tabs, locking lugs and locking tabs for attaching the rim to the cover, locking the rim to the base and insuring a proper fit of the rim with the cover.