Abstract: Ground bottom ash, a waste material derived from combustion of coal, which presents a disposal problem, replaces part of the cement in a cementitious material useful in concretes and mortars and provides compressive strengths in concretes comparable with or better than corresponding cements in which there is no replacement of cement by ground bottom ash and cements containing fly ash.
Type:
Grant
Filed:
January 30, 1997
Date of Patent:
December 15, 1998
Assignee:
Lafarge Canada Inc.
Inventors:
Donald Stephen Hopkins, David Bridson Oates
Abstract: A deicer includes a water tank storing water and an antifreeze solution tank storing an antifreeze solution. The water tank and the antifreeze solution tank are provided with heat exchangers, respectively. Pumps are further provided for feeding the water and the antifreeze solution in the respective tanks to a spray nozzle for spraying out a mixture of the water and the antifreeze solution. A gas turbine is provided for driving the foregoing pumps. Exhaust gas of the gas turbine is introduced into the heat exchangers through a control of valve switching so as to hold temperatures of the water and the antifreeze solution in the respective tanks to be constant. Further, bleed air of the gas turbine is fed to an air nozzle so as to be jetted out therefrom.
Abstract: In an apparatus for measuring the tire pressure in a pneumatic tire of a vehicle by means of a measurement value sensor, which is acted upon by the tire pressure, on the rim bed (12) of a rim (10), which accommodates a tire valve (20), for the pneumatic tire, connected to the tire valve (20) is a signal housing (44) which is associated with the rim bed (12) and which includes an electronic sender means as the measurement value sensor for the tire pressure. The signal housing (44) is connected to the tire valve (20) by a hollow screw (40) which engages into the valve bore (28) and is adjustable relative thereto in such a way that the tire valve/signal housing combination can be used for equipping different rim cross-sections. That purpose is also served by base elements (52) which project from the underneath surface of the signal housing (44) and which sit on the rim bed (12) and which with the suspension point on the screw (40) form a multi-point mounting configuration.
Abstract: A valve gate assembly including a movable valve stem for guiding molten resin to a molding area, a nozzle body portion enclosing the valve stem and a mold cavity for receiving molten plastic to form a molded part formed between cooperating first and second mold halves. An injection orifice is provided downstream of the valve stem communicating with the mold cavity for transfer of the molten plastic to the mold cavity, and a movable core pin is provided contacting the valve stem and movable between a forward position opening the injection orifice and a rearward position closing the injection orifice.
Abstract: A process for preparing an inorganic porous material, includes the steps of forming a solution of a hydrolyzable inorganic compound with a non-ionic surfactant having organic molecules; inducing growth and condensation of a solid composition comprising an inorganic composition in intimate contact with said organic molecules; and extracting said organic molecules from said inorganic composition so as to provide said inorganic porous material having wall portions defining mesopore-sized channels having a mean diameter of between about 15 .ANG. to about 100 .ANG. and a narrow diameter distribution of less than or equal to about 30 .ANG., said material having a void volume from said mesopore-sized channels of at least about 0.1 cc/g.
Type:
Grant
Filed:
January 31, 1997
Date of Patent:
November 24, 1998
Assignee:
Intevep, S.A.
Inventors:
Jose Carrazza, Jose Rafael Cordova, Juan Lujano, Jose Manuel Cruz
Abstract: A method for direct reduction of oxides includes the steps of: providing a reduction zone for direct reduction of oxides and a gas reforming zone communicating with the reduction zone; feeding metal oxides to the reduction zone; feeding a gas mixture comprising methane and an oxygen source to the gas performing zone to provide a reformed gas comprising hydrogen and carbon monoxide; contacting the oxides and the reformed gas in the reduction zone to provide a reduced metal and a top gas; and treating the top gas so as to provide the gas mixture.
Abstract: A blow molded plastic container and process for obtaining same including a supporting member in the hollow space of the container extending completely across the hollow space and integral with the inside wall face of the body portion of the container at two spaced locations thereof to support the inside wall face. The shape of the container is altered at areas of stress concentration so as to reduce stress at areas of stress concentration and thereby avoid excessive deformation at said areas.
Abstract: Used foundry sand is divided into two falling streams and the grains of a first falling stream are accelerated and diverted into the second falling stream.
Abstract: Contaminated coal ash, for example flyash contaminated with carbon is introduced to hot clinker in a cooler downstream of a cement kiln; the carbon is combusted in the cooler to provide a cement clinker having an effective content of flyash free of carbon; this permits use of flyash contaminated with carbon without the need for separate special steps for carbon removal; volatile contaminants or contaminants having a volatile component, for example adsorbed ammonia are similarly removed in the cooler by volatilization.
Type:
Grant
Filed:
April 10, 1997
Date of Patent:
November 17, 1998
Assignee:
Lafarge Canada Inc.
Inventors:
David Bridson Oates, Horace Hershel Compton, Syed Suhail Akhtar
Abstract: A process for extruding a section or the like body from an ingot is such that an ingot is introduced into a bore of a container and, by means of an extrusion stem, is fed in the direction of extrusion into a shape-giving opening in a die. Before the ingot enters the die opening, it is pushed out of the container by an amount corresponding to the width (t) of a collar whereupon a disk-shaped slice is sheared off the free end of the ingot and removed. The free end of the ingot is then pushed onto the die opening. In order to carry out this process a shearing tool is provided after the end of the container facing the die and a moveable shearing blade positioned over that entrance to the container boreThe disk-shaped slice should preferably be sheared away together with a residual butt of the previously extruded ingot which faces away from the die. To that end a shearing tool with two shearing blades is provided and can be moved radially with respect to the longitudinal axis (A) of the container bore.
Type:
Grant
Filed:
January 6, 1997
Date of Patent:
November 17, 1998
Assignee:
Alusuisse Technology & Management Ltd.
Inventors:
Diethelm Wompner, Adolf Ames, Ulf Hodel, Gregor Rotzinger
Abstract: A bill handling apparatus 1 is provided which comprises validator 2 provided with validating sensor 22 for validating a bill inserted into the apparatus 1; stacker 3 for storing a bill in response to an output from the validator 2 when the bill is considered genuine by the validator 2; a frame 4 for supporting the stacker 3; coupling device 10 for detachably supporting the validator 2 to align a passageway 21 of the validator 2 with a passageway 31 of the stacker means 3, the coupling device 10 being provided between the validator 2 and frame 4; and connector 60 for electrically connecting the validating sensor 22 in the validator 2 with validator control device 8 in the frame 4.
Abstract: An injection molding machine of the present invention includes a first mold half having one of at least one mold cavity and at least one mold core and a rotatable turret block rotatable on an axis for rotating at least one movable mold half thereof into alignment with the first mold half. Each of the movable mold halves include one of at least one mold cavity and at least one mold core matable with the first mold half for forming a mold for molding a molded article. The rotatable turret block is further for clamping the movable mold halves and the first mold half together. The machine further includes a mechanism for moving the rotatable turret block relative the first mold half and a mechanism for rotating the rotatable turret means, wherein the mechanism for moving is linked to the mechanism for rotating, and a first injector for injecting melt into the at least one mold cavity.
Type:
Grant
Filed:
April 28, 1997
Date of Patent:
November 17, 1998
Assignee:
Husky Injection Molding Systems Ltd.
Inventors:
Robin A. Arnott, William James Andrew Jacovich
Abstract: The present invention relates to a zeolite composition comprising a culture of denitrificating bacteria and a process for the preparation of said zeolite composition. The zeolite composition further comprises potassium carbonate and sodium hydrogen sulphate. The zeolite composition is very useful for controlling the biological conditions in waters, in particular for controlling the growth of algae.
Abstract: A spear tube comprises a body connected with a keg neck interface of the beer keg. A gas valve, a down tube and a beer valve installed in the down tube are fittingly connected to the body. A stopper prevents the spear tube from popping out from the beer keg during detaching operation. A stopper portion of the stopper is formed protruding in the obliquely upward direction to penetrate a side hole of the body and has a cross-section a predetermined curvature shape. Therefore, the stopper functions to prevent the popping-out of the spear tube and is improved in its durability.
Abstract: A process for extruding a section or the like body from an ingot is such that an ingot is introduced into a bore of a container and, by means of an extrusion stem, is fed in the direction of extrusion into a shape-giving opening in a die. Before the ingot enters the die opening, it is pushed out of the container by an amount corresponding to the width (t) of a collar whereupon a disk-shaped slice is sheared off the free end of the ingot and removed. The free end of the ingot is then pushed onto the die opening. In order to carry out this process, a shearing tool is provided after the end of the container facing the die and a movable shearing blade positioned over that entrance to the container bore. The disk-shaped slice should preferably be sheared away together with a residual butt of the previously extruded ingot which faces away from the die. To that end, a shearing tool with two shearing blades is provided and can be moved radially with respect to the longitudinal axis (A) of the container bore.
Type:
Grant
Filed:
February 7, 1997
Date of Patent:
November 10, 1998
Assignee:
Alusuisse Technology & Management Ltd.
Inventors:
Diethelm Wompner, Adolf Ames, Ulf Hodel, Gregor Rotzinger
Abstract: A preform, a process for forming the preform and a container formed from the preform are disclosed. The preform comprises a tubular body portion having an open end and a closed end. At a location near the open end, a flange extends outwardly from the tubular body portion. A closure retaining element is provided for engaging a closure. The closure retaining element is formed separately from the tubular body portion and includes a manner for attachment to the tubular body portion. The closure retaining element is attached to the tubular body portion adjacent the flange via the manner for attachment.
Type:
Grant
Filed:
September 12, 1997
Date of Patent:
November 10, 1998
Assignee:
The Elizabeth and Sander Valyi Foundation, Inc.
Abstract: Substituted aminostyrylpyridinium salts are fluorescent dyes having advantageous characteristics when employed as viscosity probes for the measurement of viscosity in a liquid, especially in a very small volume, for example, in living cells.
Type:
Grant
Filed:
July 23, 1996
Date of Patent:
November 10, 1998
Assignee:
McGill University
Inventors:
Graham D. Darling, Seymour Heisler, deceased, Brent R. Stranix, Petra Turkewitsch, Barbara Wandelt
Abstract: An adsorbent for selective removal of nitrile from a hydrocarbon feedstock includes a substantially homogeneous mixture of a cationic nonacidic zeolite and an inorganic oxide matrix, the zeolite having an accessibility index of between about 0.1 to about 0.4, and the adsorbent being capable, when contacted with a hydrocarbon feedstock containing nitrile and containing dienes in an amount of at least about 1.0% by volume, of adsorbing at least about 80% of the nitrile during contact with at least about 200 volumes of the feedstock per volume of adsorbent.
Type:
Grant
Filed:
September 18, 1995
Date of Patent:
November 10, 1998
Assignee:
Intevep, S.A.
Inventors:
Maria Magdalena Ramirez de Agudelo, Julia Guerra, Marisela Gonzalez
Abstract: The invention covers an injection molding apparatus and injection molding process. The apparatus has at least a first and second injection molding machine adjacent one another, with each machine including upper and lower mold elements operative to form molded products; and robot adjacent said injection molding machines operative to remove and replace at least a portion of one of said mold elements from a first of said injection molding machines while the second of said injection molding machines continues to form molded products.