710 results about "Square cross section" patented technology

A powder dispenser includes a reservoir body including a supply of powder and an inhalation conduit; a driving body for rotating the reservoir body and including upper recesses and two spring fingers in lower driving recesses thereof; a rotatable metering plate for carrying a metered amount of powder from the supply to the inhalation conduit, and having an underside with ribs; a gas permeable retainer welded to the ribs; a spring biasing the metering plate toward the reservoir body; a nozzle having spiked ribs welded in the upper recesses of the driving body and including a chimney with vertical flutes; an adapter non-rotatably mounted with respect to the metering plate and including two locking recesses for receiving the spring fingers for locking engagement and two helical cam tracks with a square cross-section; a closure cap covering the driving body and including priming ribs biasing the spring fingers out of the locking recesses and engaging with the locking recesses to rotate the driving body, and two cams riding within the cam tracks; a base non-rotatably connected with the metering plate; and a counter rotatably mounted on the base and including rotatable counter rings providing a visual count of the number of doses of powder to be dispensed, and a pawl assembly engaging with gear teeth of the counter rings for rotating the same, the pawl assembly including an outer wall, a pawl and a pawl spring integrally molded as a single piece.

Nanowhiskers are grown in a non-preferential growth direction by regulation of nucleation conditions to inhibit growth in a preferential direction. In a preferred implementation, <001> III-V semiconductor nanowhiskers are grown on an (001) III-V semiconductor substrate surface by effectively inhibiting growth in the preferential <111>B direction. As one example, <001> InP nano-wires were grown by metal-organic vapor phase epitaxy directly on (001) InP substrates. Characterization by scanning electron microscopy and transmission electron microscopy revealed wires with nearly square cross sections and a perfect zincblende crystalline structure that is free of stacking faults.

A honeycomb filter includes an array of interconnecting porous walls which define an array of first channels and second channels. The first channels are bordered on their sides by the second channels and have a larger hydraulic diameter than the second channels. The first channels have a square cross-section, with corners of the first channels having a shape such that the thickness of the porous walls adjoining the corners of the first channels is comparable to the thickness of the porous walls adjoining edges of the first and second channels.

A bus bar system having several bus bars spaced apart from each other in a first connecting plane and of an essentially square cross section and having T-shaped connecting grooves cut into all outsides for a connection with electrical installation devices having flat connectors in a second connecting plane, which is arranged perpendicular to the first connecting plane. With specially embodied connecting and insulating elements, it is possible to displace the connecting planes of the bus bars and of the flat connectors of the installations device parallel and perpendicular with respect to each other without it being necessary to perform elaborate matching assembly work at the site.

A container and a method for storage and / or transport of a compressed fluid such as compressed natural gas are provided. The container has a pair of opposing heads and a wall section between the heads, the wall section defining a square cross-section comprising substantially planar sides joined together by rounded corners. The container is designed for the side walls to deflect outwardly while under pressure, but to be supported externally by a support system that restricts outward expansion of the side walls. The support system can be provided as the walls of a cargo hold in a marine or land transport vessel, an ISO shipping container or an underground shaft. Multiple containers can be located side by side in the external support system so that the sides of adjacent containers rest against each other for support while under pressure. In one embodiment, a container comprises an outside tank and a flexible membrane tank inside the outside tank, an annular space being defined in between, where a first fluid is charged into the membrane tank and a second fluid is charged into the annular space in order to discharge the first fluid. In another embodiment, a long tube having a square cross-section is coiled in a support structure and made gas-tight for holding a compressed fluid. The walls of the tube would tend to expand while under pressure, but adjacent coils and the support structure limit the expansion.

The invention relates to a prefabricated reinforced concrete hollow template internally provided with cross holes and a molding and forming device of the prefabricated reinforced concrete hollow template. The hollow template is internally provided with longitudinal through holes with round cross sections along the length direction and latitudinal through holes with square cross sections along the width direction, wherein the longitudinal through holes are arrayed parallel one another, the latitudinal through holes are also arrayed parallel one another, and the diameter of each longitudinal through hole is less than the length of the side of each latitudinal through hole. Two large surfaces of the hollow template are flat surfaces formed by molding. A casting mold of the molding and forming device is of a vertical type and provided with one or more mold cavities; each mold cavity is surrounded by a front face plate, a rear face plate, a left side plate and a right side plate; a core tube frame or upper side plate capable of fixing a vertical core tube is arranged on the upper part or above each mold cavity; and the left side plate, the right side plate and the upper side plate are provided with a plurality of horizontal holes and vertical holes respectively. Each surface of the hollow template processed by using the molding and forming device is flat without being polished and subjected to similar treatment. The hollow template is high in strength and good in quality, can be directly used for the construction of a load-bearing wall with few procedures in a short time and can ensure that the load-bearing wall is not easy to shrink and crack.

A base assembly for air handlers having a filter. Four metallic legs each have a distal end. The metallic legs also have first through holes at first predetermined distances from their respective distal ends. The metallic legs have a rectangular or square cross section, and each distal end mounts to a floor. First and second metallic upper frames have vertical extensions to telescopically receive the four metallic legs respectively. The first and second metallic upper frames further have braces member and air filter C-shaped tracks. The first and second metallic upper frames each further have elongated male horizontal arms and elongated female horizontal arms that join whereby the air filter C-shaped tracks face each other to receive a filter.

A cleaning brush suitable for use in connection with automotive cleaning tasks, incorporates back-to-back bristle heads at one end of an elongated handle. One of the bristle heads features a concave, or dished, face; the other bristle head has a planar face. The concave brush head is intended for use on tires, and as such, is fabricated from fewer, coarser bristles than is the planar brush head, which is intended for use on wheels and body parts. For a preferred embodiment of the invention, the handle is about 61 cm (24 inches) in length, and includes an elongated portion of square cross section and a flattened, largely disk-shaped portion in which bristles of both heads are imbedded. Optionally, the handle at the end opposite the disk-shaped portion includes an aperture which may be used to hand the brush on a hook.

The trailer hitch mount for an umbrella includes a square cross-section shaft that is adapted to slide into a standard sleeve-style trailer hitch receiver that is currently available on many vehicles. The shaft includes a series of holes along the sides thereof to receive a pin in order to secure the shaft to the trailer hitch receiver in a telescopic relationship. The series of holes allows the shaft length to be adjusted, so that the distance between the trailer hitch receiver and the opposed end of the shaft may be shortened or lengthened, as desired. The shaft includes two ends, one of which slides into the trailer hitch receiver, and the other end includes a hollow pivoting cylindrical tube that is used to receive the bottom end of an umbrella pole. The pivoting tube includes adjustment means, so that the pivoting tube may be tilted to a desired angle and secured in that position. For travel or storage purposes, the pivoting tube may be folded down and secured into a compact position parallel with the shaft. At an upper end of the pivoting tube is receiving and securing means for the umbrella pole. The umbrella pole, in a preferred embodiment, slides into the hollow pivoting tube and a hand screw positioned on the side of the pivoting tube at its upper end may be tightened against the umbrella pole and secured thereby.

An extendable tool having an internal drive assembly is disclosed. The extendable components of the internal drive assembly are two, or more, telescoping drive shafts each having an alignment structure. The alignment structure ensures that the drive shafts generally maintain their circumferential alignment relative to each other, i.e. the shafts rotate together and maintain their orientation, while allowing the drive shafts to slide axially relative to each other. In one embodiment the drive shafts have a non-circular cross-section, and more preferably, a square cross-section. Each inner drive shaft has a cross-sectional area that is slightly smaller than the next larger outer drive shaft. Thus, the drive shafts may slide axially relative to each other. However, when the drive shafts are rotated, the non-circular shape causes the inner drive shaft and the larger outer drive shaft to engage each other and rotate together.

Walls of expanded polystyrene, concrete-receiving forms (referred to as insulated or insulating concrete forms or ICFs) need to be vertical while they are being filled with concrete and while the concrete is curing. An apparatus with a vertical member and a brace member is such that one person can erect it and use it to adjust walls of ICFs so as to be vertical or plumb. The apparatus is capable of being readily used with the forms of any manufacturer by being provided with asymmetrical brackets for detachably attaching the vertical member to a wall firmly, but not rigidly. The apparatus provides a support for a platform, or scaffold, for a person to stand on while guiding the concrete pouring and while plumbing the wall. The vertical member extends upward from the ground and is held firmly against the wall with asymmetrical brackets. The brace member extends from the vertical member at a pivot with the other end of the brace member attached to the ground or floor. A lead screw in the vertical member is used to change the height of the pivot and thus slightly, and adjustably, tilt the vertical member into or out of the wall so as to cause the wall to be vertical. The vertical member and the brace member are preferably adjustable in length, however neither member changes length a noticeable amount while being used to cause the wall to be vertical. The members are preferably made of sections of square cross section, steel tubing that may be nested together.

A honeycomb filter includes an array of interconnecting porous walls which define an array of first channels and second channels. The first channels are bordered on their sides by the second channels and have a larger hydraulic diameter than the second channels. The first channels have a square cross-section, with corners of the first channels having a shape, such as a bevel or fillet, such that the thickness, t3, of the porous walls adjoining the corners of the first channels is comparable to the thickness, t4, of the porous walls adjoining edges of the first and second channels. Embodiments having a corner fillet with a radius, Rc, are also disclosed. Embodiments wherein 0.30 t4≦Rc≦1.0 t4 exhibit combinations of low wall pressure drop and low thermal stress.

A bent-back plug-type connector for coaxial cables includes a bent-back outer conductor having a first conductor section which extends along a plug axis and a second conductor section which adjoins the first conductor section and is arranged at an angle with respect thereto, as well as a first inner conductor, which is arranged concentrically and insulated in the first conductor section, and a second inner conductor, which is arranged concentrically and insulated in the second conductor section and is detachably connected to the first inner conductor in the corner region of the bent-back outer conductor. With such a plug-type connector, simpler fitting, a secure and permanent connection and simpler and more cost-effective production are achieved by virtue of the fact that the first inner conductor has a square cross section, and the fact that an opening is provided in the first inner conductor.

A honeycomb filter includes an array of interconnecting porous walls which define an array of first channels and second channels. The first channels are bordered on their sides by the second channels and have a larger hydraulic diameter than the second channels. The first channels have a square cross-section, with corners of the first channels having a shape, such as a bevel or fillet, such that the thickness, t3, of the porous walls adjoining the corners of the first channels is comparable to the thickness, t4, of the porous walls adjoining edges of the first and second channels. Embodiments having a corner fillet with a radius, Rc, are also disclosed. Embodiments wherein 0.30 t4≦Rc≦1.0 t4 exhibit combinations of low wall pressure drop and low thermal stress.

A lie-down massager includes a base frame having a top panel, a rider provided below the top panel of the base frame, a guide member movably engaged between the base frame and the rider to enable the rider to make a horizontally reciprocal movement relative to the base frame, massage bumps that move vertically along an elongated top opening of the elongated top panel of the base frame, and a lifter that holds the massage bumps and adjusts the height of the massage bumps. The lifter includes a top plate, a bottom plate, a fluid operated cylinder fixed to the bottom plate, and a spring fixed between the top plate and the bottom plate. The fluid operated cylinder has a cylinder shaft that is moved by pressurized fluid overcoming the force of the spring, and a guide shaft and a guide bearing that have a square cross section.

A nestable container designed for efficient storage when the containers is not in use and for safe handling when in use. The container has four outwardly bowed sidewalls flared upwardly from its bottom with each sidewall connected to adjacent sidewalls by an inwardly fluted web to form a essentially square cross section. The webs define finger gripping corners at the edges of the sidewalls that allow the container to gripped better by a user. The containers can be nested with other containers of different sizes without wasting space. The essentially square configuration of the containers also make them easy to pack with or within other containers, that are typically also square or rectangular.