Did You Know...
...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7334575 | Bow limb fixation member An improved archery bow having innovative bow limb pockets. ... | 02/26/2008 |
| 7191571 | Modular construction blocks, building structures, kits, and methods for forming building structures The modular construction blocks include a preform having a plurality of passageways therethrough. The preforms may by formed from a plastic material and filled with concrete and steel reinforcing bars to form footings, foundations, girders, walls, and roofs. The mod... | 03/20/2007 |
| 6772827 | Suspended gas distribution manifold for plasma chamber A gas inlet manifold for a plasma chamber having a perforated gas distribution plate suspended by a side wall comprising one or more sheets. The sheets preferably provide flexibility to alleviate stress in the gas distribution plate due to thermal expansion and cont... | 08/10/2004 |
| 6554058 | Glassmaking furnace regenerator The invention relates to a glassmaking furnace regenerator including a stack of several rows of refractory members defining a plurality of channels, characterized in that the stack comprises, in the hot gas flow direction, a first zone at the hot gas inle... | 04/29/2003 |
| 6389776 | Gas permeable refractory brick for use in regenerative heat exchanger and hot grid formed therefrom Provided are novel gas permeable bricks of a refractory material suitable for use in a hot grid of a regenerative heat exchanger. In accordance with one aspect of the invention, the brick has an inner face and an outer face on opposite sides of the brick.... | 05/21/2002 |
| 6322356 | Pollution abatement reactor system having nonprismatic structured media An apparatus for treating gaseous pollutants in an air stream such as a regenerative thermal oxidizer or a selective catalytic reduction system, including a reaction chamber wherein the reaction media bed within the chamber comprises a plurality of nonpri... | 11/27/2001 |
| 6062297 | Honeycomb regenerator A honeycomb regenerator for receiving a waste heat in an exhaust gas by passing an exhaust gas and a gas to be heated alternately therethrough, which is constructed by stacking a plurality of honeycomb structural bodies, is disclosed. In the honeycomb reg... | 05/16/2000 |
| 5992504 | Honeycomb regenerator A honeycomb regenerator for recovering waste heat from exhaust gas, comprises a stacked assembly including at least one first honeycomb body and at least one second honeycomb body stacked thereon, the first honeycomb body being formed of an anti-corrosive... | 11/30/1999 |
| 5924477 | Brick for heat exchangers A hexagonal refractory brick is constructed with tapered sides so it can be stacked 3-on-1 and 1-on-3, the bottom surface of the brick fitting between projections on the top surfaces of three others. A central vertical channel in the brick is complemented... | 07/20/1999 |
| 5755569 | Media for heat exchange columns in regenerative thermal oxidizers A regenerative thermal oxidizer is provided with a combustion chamber and a plurality of heat transfer columns. Heat transfer media within the columns include solid surfaces which define vapor flow passages. To permit higher volumetric vapor flow rates ne... | 05/26/1998 |
| 5634313 | Cylindrical, refractory, hollow brick The invention relates to a cylindrical, refractory, hollow brick having tapered wall surfaces in the corner region.... | 06/03/1997 |
| 5547016 | Method for heating a gas in a regenerator A method is provided for heating a gas in a regenerator with a heat accumulation mass consisting of a loose bulk material arranged in a ring between two coaxial cylindrical grids, a hot collection chamber, surrounded by the inner hot grid, for the hot gas... | 08/20/1996 |
| 5499477 | Carbon black refractory system A refractory system for a reactor for producing carbon black. The system comprises a plurality of refractory bricks having an elongate axis arranged to provide at least one path through which a gas can flow. The path extends substantially perpendicular to... | 03/19/1996 |
| 5358031 | Interlocking checker bricks and method and apparatus for making An interlocking checker brick used to form a checkerwork for use in recovering heat in thermal regenerators and recuperators. The checker brick is made of a refractory material and comprises a rectangular top, a rectangular base, two side walls and two en... | 10/25/1994 |
| 5299629 | Interlocking checker bricks An interlocking checker brick used to form a checkerwork for use in recovering heat in thermal regenerators and recuperators. The checker brick is made of a refractory material and comprises a rectangular top, a rectangular base, two side walls and two en... | 04/05/1994 |
| 5154224 | Refractory brick for a glass fusion furnace A refractory brick for a glass fusion furnace includes a triangular hollow-prism type brick body (1) having a flow passage (1c) formed so as to extend between two opposite ends of the brick. The flow passage (1c) has a substantially triangular cross-secti... | 10/13/1992 |
| 5127463 | Refractory brick segment for a heat regenerator A refractory brick segment for use in a heat regenerator is made of an electrocast refractory material in the shape of a tube. The brick segment has a wall thickness of from 35 mm to 75 mm and a substantially rectangular cross-section. All of an inner sid... | 07/07/1992 |
| 5005635 | Refractory elements for the construction of heat regenerators The invention relates to the regenerators of glass melting furnaces. It relates more particularly to a ceramic element for equipping regenerators of glass melting furnaces, having at least one vertical wall, the mean thickness of which is at the most 40 m... | 04/09/1991 |
| 4974666 | Refractory brick assembly for a heat regenerator In a refractory brick assembly for a heat regenerator, a plurality of brick units are assembled so as to form many long vertical gas flow passages. Each outer wall of the brick units has four corner portions each of which has a plurality of convex and con... | 12/04/1990 |
| 4940081 | Checker brick A checker brick has a plurality of walls intersecting at a plurality of spaced intersections. Four walls extend outwardly from each intersection in equidistantly-spaced relationship to one another. One of the four walls at each intersection is a common wa... | 07/10/1990 |
| 4874034 | Refractory unit for a heat regenerator In a heat regenerator, a unit body of a refractory unit has an upper end surface (1a), a lower end surface (1b), an outer wall (1c), an inner wall (1d) and a flow passage (7) which is formed by the inner wall (1c) and extends between both end surfaces (1a... | 10/17/1989 |
| 4651810 | Checkerwork for upright regeneration chambers of a glass melting furnace A checkerwork for two upright regeneration chambers of a glass melting furnace defines a multiplicity of adjacently arranged vertical passages alternatingly providing upwardly directed fresh air flow and downwardly directed exhaust flow, the passages bein... | 03/24/1987 |
| 4627485 | Rotary regenerative heat exchanger for high temperature applications A rotary regenerative heat exchanger is particularly adapted for use in exchanging heat from a hot gas entering the heat exchanger at a temperature in the range of 2000°-3000° F. to low temperature air to be heated. An upper rotor and a lower rotor are ... | 12/09/1986 |
| 4593751 | Chequer-brick for vertical cowpers and cowper chequerwork constructed from these chequer-bricks A chequer brick of cruciform shape is provided for the chequerwork of vertical cowpers along with methods of stacking the cruciform shaped chequer brick. The chequer bricks each comprise two cross beams or cross-members of the same length, but having diff... | 06/10/1986 |
| 4589474 | Checkerwork in horizontal chamber of a regeneratively fired furnace A checkerwork in a horizontal regenerator chamber of a regeneratively fired furnace, comprising an array of horizontally and vertically adjacent hollow prismatic bricks of refractory material, the bricks being arrayed in horizontal and vertical rows, and ... | 05/20/1986 |
| 4561843 | Transfer flue with means for improving the flow of gases A refractory brick is installed in a transfer flue with vertical orifices disposed between, on the one hand, the regenerators or recuperators and, on the other hand, the combustion chambers of industrial gas-fired systems, particularly a coke oven. The re... | 12/31/1985 |
| 4540039 | Prismatic refractory brick for glass melting furnace chambers A prismatic brick of refractory material for the checker work in chambers of a glass melting furnace, the brick having an octagonal bottom surface, an octagonal top surface, a longitudinal axis extending between the surfaces, a through passage of tetragon... | 09/10/1985 |
| 4527617 | Regenerator checker packing with enhanced transverse flow Regenerator packing members are constructed and arranged to form tapered passageways interconnecting regenerator flues to induce transverse flow of gas between flues for increased heat transfer. A preferred embodiment includes parallelepiped bricks arrang... | 07/09/1985 |
| 4519442 | Heat exchange structure A heat exchange structure is constructed from refractory blocks having three linearly aligned flue-forming openings extending from top to bottom of the block. The central opening is surrounded on four sides by refractory and the two end openings are surro... | 05/28/1985 |
| 4479777 | Header brick in regenerator lattice structure A freely diagonally staggered regenerator lattice structure includes successive courses of rows of rectangular runner bricks and courses of rows of rectangular header bricks. Each header brick has formed in opposite side surfaces thereof recesses extendin... | 10/30/1984 |
| 4436144 | Prismatic brick of refractory material A grid lining of chambers of a glass melting furnace comprises a plurality of refractory bricks, each brick having a bottom surface, a top surface, a longitudinal axis extending between the surfaces, a through passage of tetragonal cross-section coaxial w... | 03/13/1984 |
| 4407352 | High efficiency coke oven regenerator checker brick A high efficiency checker brick for use in a coke oven regenerator. A unique configuration is disclosed which results in the brick having rows of longitudinal slots with vertically corrugated surfaces. The front and rear side surfaces are similarly corrug... | 10/04/1983 |
| 4378045 | Interlocking checker tile and supporting means for regenerative heating stoves Disclosed are checker tiles for regenerative heating stoves, each tile having the general shape of a parallelepiped, the preferred tile being square in plan, having apertures extending through the tiles and having complementary ribs and grooves extending ... | 03/29/1983 |
| 4346753 | Regenerator checkerwork brick Regenerator checkerbrick for a blast furnace stove system embody a hexagonal configuration. A central flow space for a heat exchange medium has six planar wall surfaces. An array of outer flow spaces each have six planar wall surfaces, one of which is par... | 08/31/1982 |
| 4322205 | Regenerative air heater A gas-cooled steel skirt is used to support a refractory cored brick matrix and dome structure in a high temperature regenerative air heater useful in magnetohydrodynamic power generation. The steel skirt thermally expands to accommodate the thermal expan... | 03/30/1982 |
| 4282923 | Regenerative heat exchange systems A regenerative heat exchange system comprises a multiplicity of refractory members laid in adjacent parallel rows to form one course in the system, each refractory member being so shaped such that the adjacent refractory members of one row co-operate to f... | 08/11/1981 |
| 4150717 | Interlocking checker tile Disclosed are checker tiles for regenerative heating stoves, each tile having the general shape of a parallelepiped, the preferred tile being square in plan, having apertures extending through the tiles and having complementary ribs and grooves extending ... | 04/24/1979 |
| 4108733 | High efficiency coke oven regenerator checker brick A coke oven regenerator checker brick which incorporates, with the principle of maximization of heat transfer, the ability to minimize pressure differential within such a regenerator, while providing facility of inexpensive manufacturing techniques. A cok... | 08/22/1978 |
| 4075812 | Refractory checkerwork The refractory checkers can be saved from damage or breakdown by introducing a layer of a material having suitable compressive deformability, between overlapping brick surfaces.... | 02/28/1978 |
| 4008997 | Sagger A sagger including a plurality of identical side walls each including at one end a flange member extending the height of the side wall and at the opposite end, a flange-receiving socket extending the height of the side wall for receiving and positively in... | 02/22/1977 |
