baber/WOPTO huggingface dataset:
Patent CA-2111211-A1 (CA)
Title: Drilling mud compositions
Inventor: WESTLAND JOHN A
IPC: C09K8/62
Filed: 1992-06-05
Abstract: The addition of relatively small quantities of reticulated bacterial cellulose to well bore drilling muds improves their rheological properties. A preferred reticulated bacterial cellulose is one produced under agitated culture conditions using strains of a bacterium from the genus Acetobacter. Reticulated bacterial cellulose may be used in place of a conventional gellant or in combination with conventional gellants to provide improved drilling muds.
Patent CA-2112669-A1 (CA)
Title: Vehicle suspension system
Inventor: HEYRING CHRISTOPHER B
IPC: B60G17/056
Filed: 1992-07-16
Abstract: A vehicle having a suspension comprising a double acting ram (13, 14, 17, 18) connecting each wheel (1, 2, 3, 4) independently to the body (5) of the vehicle, each ram (13, 14, 17, 18) having respective first (13a, 14a, 17a, 18a) and second (13b, 14b, 17b, 18b) chambers that vary in volume as the wheels move relative to the vehicle body (5). Each front wheel ram (13, 18) is connected to the diagonally opposite rear wheel ram (14, 17) by a respective pair of conduits (8, 10) and (8a, 10a) arranged so the first chamber (13a, 18a) of one wheel is connected to the second chamber (14b, 17b) of the other wheel. Each first and second chamber and the conduits connected thereto are filled with fluid and independent of external fluid and pressure sources. Diagonal interconnection of the front and rear rams minimizes roll movement in a lateral direction and pitch movement in the longitudinal direction of the vehicle.
Patent CA-2112954-A1 (CA)
Title: Process for producing low molecular-weight poly-1-olefins
Inventor: BOEHM LUDWIG
IPC: C08F10/00
Filed: 1994-01-06
Abstract: A catalyst formed by the reaction of a magnesium alkoxide dispersion having a particle size of from 100 to 3000 nm with a compound of a metal selected from the group comprising titanium, zirconium, vanadium and chromium and then with a chlorine-containing organoaluminum compound possesses a very good hydrogen responsiveness and a high activity even in the presence of molecular-weight regulators such as hydrogen. The catalyst is therefore outstandingly suitable for the production of low molecular-weight polyolefins. The catalyst makes possible the production of waxes having a reduced residual ash content. The large particle diameter and the low fines content of the polymer powder produced by suspension polymerization with this catalyst enables easy removal of the suspension medium and drying. The catalyst is furthermore advantageously used in solution polymerization and, because of the large particle diameter, in gas phase polymerization for producing low molecular-weight poly-1-olefins.
Patent CA-2114693-A1 (CA)
Title: Method and arrangement for guiding a steel strip during its passage through a continuous treatment plant
Inventor: WANGERIN GERHARD
IPC: B65H23/04
Filed: 1994-02-01
Abstract: A method of guiding a steel strip during its passage through a continuous strip treatment plant equipped with a series of treatment stations, wherein the travel direction and/or travel track of the strip can be adjusted as desired and/or the strip is turned over as desired for making it possible to carry out a visual inspection of the strip. The method includes introducing the strip into a strip turning tower and guiding the strip, similar to a vertical looping storage unit, over vertically spaced-apart upper and lower guide rollers in order to twist the strip from roller to roller by a certain angle, such that any desired twisting angle can be adjusted between strip entry and strip exit of the strip turning tower. An arrangement for carrying out the method includes a strip turning tower constructed with a plurality of upper and lower strip guide rollers arranged vertically spaced apart from each other, wherein the rollers are turned in travel direction of the strip from roller to roller in the same direction relative to the strip inlet axis by angle values which add up to 180°, such that the strip is twisted by a partial angle value as it travels through a pair of rollers formed by an upper and a lower roller, and the strip is turned from the bottom side thereof and vice versa when the sum of all twisting angle values is 180°.
Patent CA-2115795-A1 (CA)
Inventor: EISENMANN SIEGFRIED A
IPC: F04C2/10
Filed: 1994-02-16
Abstract: In an internal gear pump, which can also be constructed as pump with suction control, to reduce the undesired cavitation effects in the pressure region and to permit the oil to flow off from the diminishing displacement cells between the teeth of the gears, and impedance-controlled overflow passage is provided, the openings of which towards the moving displacement cells are alternately opened and closed by the teeth of at least one of the gears.
Patent CA-2117111-A1 (CA)
Title: Sanitary Cleaning Apparatus
Inventor: MATSUMOTO TOMOHIDE
IPC: E03D9/08
Filed: 1994-03-07
Abstract: A sanitary cleaning apparatus comprises a plurality of cleaning water jetting openings on a nozzle, the axes of these jetting openings intersecting each other between the nozzles and a region to be cleaned. The apparatus provides various cleaning patterns by giving turbulence to the jet flow, by mixing air in the water, and by changing the distribution ratio of jet flows from different openings.
Patent CA-2117227-A1 (CA)
Title: Pumpjack drive
Inventor: PAULSON PETER O
IPC: F04B9/02
Filed: 1994-03-08
Abstract: A pumpjack drive incorporating an overrunning clutch and a driving sheave which in turn drives a pumpjack for reciprocating an oil well rod string is disclosed. The driving sheave is subject to torque reversals due to the speeding up and slowing down of the rod string and the pumpjack counterweights. If the pumpjack counterweight attempts to accelerate the driving sheave faster then it is driven by the motor, the clutch disengages, preventing the motor from being accelerated beyond its synchronous speed. The drive includes an extension shaft which receives and turns with the motor shaft. The overrunning clutch is mounted on this extension shaft, which is in turn coupled to the driving sheave. The driving sheave is not drivingly connected to the motor shaft, and can thus rotate independently of the motor shaft when the clutch disengages.
Patent CA-2118411-A1 (CA)
Title: Planer fuse panel
Inventor: MONIE WAYNE G
IPC: H01H85/20
Filed: 1994-02-28
Abstract: A planar fuse panel (10) is presented. A multiplicity of circuits may be included in the planar fuse panel depending on the number of circuits desired. The circuits may have any suitable planar shape. In a preferred embodiment, each circuit has an overall rectangular shape with a first portion consisting of an "L" shaped element (13) and a second portion comprising a rectangular shaped element (15) located in the shoulder of the first element. Spaces (17) are formed bridging the two portions of each circuit with bent tabs (22, 24) extending into each space to frictionally engage a blade-type terminal from a fuse or the like. The conductive metal is appropriately finished and/or plated and then insulative layers (30, 32), such as polyester or polyimide film, are applied (e.g., laminated) to both surfaces of the metal in sheet form.
Patent CA-2120714-A1 (CA)
Inventor: LAROSA CHRISTOPHER P
IPC: H04B17/00
Filed: 1993-09-16
Abstract: La présente invention est constituée par une méthode et un appareil servant à évaluer la qualité des signaux dans les diverses voies captées par un récepteur. Chaque voie est divisée en intervalles et en sous-intervalles d'observation. La durée d'un sous-intervalle est la durée de l'intervalle le plus long durant lequel la voie examinée est essentiellement statique. L'appareil de l'invention produit une information d'erreur pour chaque symbole du sous-intervalle et collecte l'information d'erreur pour un intervalle de symbole constituant une erreur de sous-intervalle. Il transforme cette erreur de sous-intervalle en une évaluation du taux d'erreur sur les bits dans ce sous-intervalle. Cette transformation est une fonction non linéaire qui varie avec les systèmes radio. L'appareil de l'invention calcule ensuite la moyenne des estimations des taux d'erreur sur les bits pour tous les sous-intervalles de l'intervalle d'observation, ce qui donne une évaluation du taux d'erreur sur les bits dans cet intervalle. Finalement, il compare cette estimation du taux d'erreur sur les bits dans l'intervalle avec un seuil prédéterminé et prend une décision quant à la qualité des signaux dans la voie examinée pour chaque intervalle d'observation.
Patent CA-2121414-A1 (CA)
Title: Bicycle rack
Inventor: REEVES MICHAEL K
IPC: B60R9/06
Filed: 1994-04-15
Abstract: A rack for securing wheeled vehicles, particularly bicycles, includes wheel-receiving wells for receiving the front wheel of the vehicle and contacting the wheel at least at two points. A wheel-engaging arm, pivotally mounted to the rack, is pivoted upwardly and is extensible outwardly against a biasing element. The arm is adapted to engage the wheel of the bicycle at least at a third point for securely holding the vehicle.
Patent CA-2121863-A1 (CA)
Title: Control of carbon balance in a silicon smelting furnace by monitoring calcium
Inventor: SCHOONOVER DAVID E
IPC: C01B33/025
Filed: 1994-04-21
Abstract: CONTROL OF CARBON BALANCE IN A SILICON SMELTING FURNACE          BY MONITORING CALCIUM                       ABSTRACT           A method is described for controlling the carbon balance of a silicon smelting furnace by maintaining the concentration of calcium within the silicon formed in the furnace within a range of 0.4 to 2.0 weight percent.  The calcium yield of the furnace is a rapid and sensitive indicator of the carbon balance of the furnace.  More specifically, a calcium yield of less than 80 weight percent indicates a negative carbon balance in the furnace; a calcium yield of greater than 90 weight percent indicates an excess carbon balance in the furnace; and a calcium yield within a range of 80 weight percent to 90 weight percent indicates a furnace in carbon balance.  A preferred embodiment of the present invention uses calcium yield in conjunction with a harmonic volts parameter and a electrode consumption measurement to further control carbon balance of the furnace.
Patent CA-2122347-A1 (CA)
Title: Tire and belt compositions
Inventor: HOGT ANDREAS H
IPC: B29D29/06
Filed: 1992-05-07
Abstract: The present invention relates to a tire wherein at least one of the tread, steel-cord skim stock, sidewall and carcass portions contains a rubber composition formed by curing a blend of a.  natural rubber, polyisoprene or a mixture thereof, b. butadiene rubber, styrene-butadiene rubber or a mixture thereof, c. carbon black, d. activator, e. zinc oxide, f. sulfur or a sulfur donor, and g.  curing accelerator, characterized in that said rubber composition has a heat buildup of 20-35 ·C. These tires exhibit one or more improvements in a wide variety of properties. The present invention relates also to a belt which contains such a rubber composition, characterized in that said rubber composition has a heat buildup of 10-25 ·C. These belts exhibit also one or more improvements in a variety of properties.
Patent CA-2123534-A1 (CA)
Title: Rafting antacid formulation
Inventor: BROOKS WILLIAM J
IPC: A61K9/00
Filed: 1994-05-13
Abstract: ABSTRACT       This invention is an antacid composition capable of forming a floating gelatinous mass when contacted with aqueous acid and consisting essentially of, as active ingredients, xanthan gum; an effective acid neutralizing amount of hexitol stabilized aluminum hydroxide and a gas producing material capable of producing a non-toxic gas when contacted with aqueous acid which may be formulated as a solid, powder, tablet or suspension.
Patent CA-2126231-A1 (CA)
Title: Compositions containing histamine-h2-receptor antagonists at low dosage
Inventor: DAVIS ADRIAN F
IPC: A61K33/24
Filed: 1992-12-17
Abstract: Compositions for oral administration for the treatment of gastric disorders comprising histamine H2-receptor antagonist, and antacid, optimally buffered to promote local absorption of the H2-receptor antagonist, wherein the quantity of H2-receptor antagonist per unit dosage form is less than 25mg.
Patent CA-2127906-A1 (CA)
Title: Method and apparatus for the hygienic preparation of medical instruments
Inventor: SUTTER RALF
IPC: B08B3/02
Filed: 1994-07-13
Abstract: A method and apparatus for cleaning medical instruments including dental instruments having internal channels and internal moving parts comprises cleaning the external surface and internal channels and parts by a jet of cold water followed by a jet of preheated water, then intensely after-cleaning and disinfecting followed by lubricating the moving parts, then sterilizing and drying and cooling.
Patent CA-2128590-A1 (CA)
Inventor: ZINCK JENNIFER J
IPC: C30B29/48
Filed: 1994-07-21
Abstract: A metalorganic arsenic source comprising R3-mAsHm, where R is an organic radical selected from the group consisting of CnH2n+1 and CnH2n-1, where n ranges from 1 to 6, and where m is 1 or 2, such as tert-butylarsine (t-BuAsH2), is useful in terminating a silicon surface with arsenic without carbon contamination, thereby permitting subsequent growth of high quality II-VI films, such as ZnSe.  Use of this metalorganic arsenic source allows the full potential of the metalorganic molecular beam epitaxy (MOMBE) deposition technique, which has demonstrated superior flux control than that achieved by MBE, to be realized in the heteroepitaxy of HgCdTe on silicon substrates.  Other metalorganic deposition procedures, such as MOVPE, may also be employed in the practice of the invention.
Patent CA-2128863-A1 (CA)
Inventor: ROECKRATH ULRIKE
IPC: B05D7/16
Filed: 1993-02-03
Abstract: PCT No. PCT/EP93/00242 Sec. 371 Date Aug. 23, 1994 Sec. 102(e) Date Aug. 23, 1994 PCT Filed Feb. 3, 1993 PCT Pub. No. WO93/15849 PCT Pub. Date Aug. 19, 1993.The invention relates to a process for the production of two-coat finishes of the basecoat/clearcoat type, in which nonaqueous transparent topcoats are employed, which comprise (A) a synthetic resin containing hydroxyl groups or a mixture of synthetic resins containing hydroxyl groups, (B) an amino resin or a mixture of amino resins, and (C) a blocked polyisocyanate or a mixture of blocked polyisocyanates, in which component (C) comprises isocyanate groups blocked both with a blocking agent (I) and with a blocking agent (II), and the blocking agent (I) being a dialkyl malonate, the blocking agent (II) being a blocking agent which is different from (I) and contains active methylene groups or an oxime, and the ratio of equivalents between the isocyanate groups blocked with (I) and the isocyanate groups blocked with (II) being between 1.0:1.0 and 9.0:1.0.
Patent CA-2131303-A1 (CA)
Title: Adjustable Fit Shoe Construction
Inventor: ROSEN HENRI E
IPC: A43B3/26
Filed: 1993-03-31
Abstract: A shoe construction is disclosed in which varying the width of an insole assembly adjusts the fit of the shoe.
Patent CA-2132281-A1 (CA)
Title: Method of making an injection molding nozzle
Inventor: GELLERT JOBST U
IPC: B29C45/20
Filed: 1994-09-16
Abstract: A method of manufacturing an injection molding nozzle having an integral electrical heating element. The heating element is mounted in a space formed between an inner core, an outer rear collar and an outer sleeve. The space is first sealed by brazing with a nickel alloy brazing material and a copper conductive material is then cast into the space. Both the brazing and casting are done in a single controlled cycle of a vacuum furnace. An insulative cap is placed over the assembly so a supply of inert gas to the vacuum furnace cools the copper conductive material from the bottom up. This produces unidirectional solidification to avoid the formation of voids in the copper conductive material and improve thermal conductivity.
Patent CA-2134771-A1 (CA)
Title: Method for manufacturing optical components with periodic or quasi-periodic optical properties
Inventor: SUTTON PHILIP
IPC: G03H3/00
Filed: 1994-03-08
Abstract: A method for manufacturing optical components having a periodic or quasi-periodic structure such as diffraction gratings, volume holograms or distributed feedback mirrors in optical fibres. An optical medium is subjected to acoustic waves which induce periodic or quasi-periodic changes in the optical properties of the medium, the changes being at least partially retained on removal of the waves. The changes may result from stress associated with the antinodes of an acoustic standing wave, alternatively the stress distribution associated with a travelling acoustic wave in an electro-viscous liquid may be semi-permanently retained by the solidification of the material resulting from the application of an electric field.
Patent CA-2135802-A1 (CA)
Title: Process for the purification of medium-chain olefins
Inventor: ROMERS ERIC
IPC: C08F10/00
Filed: 1994-10-14
Abstract: Medium-chain olefins containing as impurities 2-alkyl substituted isomers having a close boiling point are purified by (i) passing over a solid acid catalyst under mild conditions to selectively double-bond isomerise said impurities, and (ii) separating said isomerised olefins by distillation.
Patent CA-2136307-A1 (CA)
Title: Method and apparatus for the modification of starch and other polymers
Inventor: REDDING BRUCE K JR
IPC: B29C48/475
Filed: 1993-04-20
Abstract: A method and apparatus for the modification of the physical properties of polymers through pressure processing techniques. The appratus is comprised of a piston assembly (2) which acts on the polymer substrate charged within the confines of a compression chamber. Piston assembly (2) comprises compression chamber (1), the terminal end of which is disposed between inlet valve (3) and outlet valve (4), and piston housing (42) which has within it a movable piston (20). A reservoir (5) is provided as a receptacle for the substrate (40) and may be adapted with a stirrer and heating coils (not shown) where necessary to maintain homogeneity and flow properties. The piston delivers an abrupt pressure change to the substrate for the purpose of effecting the desired modification of physical properties including altered thermal, viscosity, solubility, turbidity and hardness profiles. Predictable characteristics may be imparted to the substrate through variation of pressure duration and intensity as well as the number of piston strokes applied. Modification of the physical properties of starch and gum arabic, in particular, is disclosed.
Patent CA-2137423-A1 (CA)
Title: Electrochemical graining method
Inventor: AMOR MARTIN P
IPC: B41N3/04
Filed: 1994-12-06
Abstract: A plate-,  foil- or web-shaped workpiece of aluminum or an alloy thereof is subjected, in an electrolyte bath, to an alternating current at a frequency of 0.1 to  25  Hz.  During  the  AC  treatment,  an  anodic potential is imposed on the workpiece,  in the range of 0 to 5 Volts. The total charge input is 10 to 60 kC/m2.  Prior  to  the  electrochemical  graining,  the workpiece is mechanically grained. After the graining steps,  an etching treatment as well as an anodical oxidation  and,  thereafter,  a  hydrophilization  are performed.
Patent CA-2137757-A1 (CA)
Inventor: OZAWA KAZUNORI
IPC: G10L19/08
Filed: 1994-12-09
Abstract: A speech parameter encoder capable of encoding spectrum parameters at a bit rate of 1 kb/s or less with comparatively small amount of operations and memory capacity.  A spectrum parameter calculation unit 130 derives a spectrum parameter representing the spectrum envelope of a discrete input speech signal through division thereof into frames each having a predetermined time length.  A weighted coefficient calculation unit 150 derives a weighted coefficient corresponding to an auditory masking threshold value through derivation thereof from the speech signal.  A spectrum parameter quantization unit 160 receives the weighted coefficient and the spectrum parameter and centeses the spectrum parameter through search of a codehook such as to minimize the weighting distortion based on the weighted coefficient.
Patent CA-2138049-A1 (CA)
Inventor: CLIFTON THOMAS W III
IPC: A61Q9/04
Filed: 1994-04-22
Abstract: The  present   invention   relates   to  hair treatment formulations such as hair relaxers, permanent waving agents and depilatories.  These formulations are produced utilizing a microemulsion.  While it would be expected that  such  microemulsions  would  be  more irritating than their macroemulsion counterparts,  the opposite has been found to be true.
Patent CA-2138738-A1 (CA)
Inventor: OKUIZUMI KIYOSHI
IPC: H04N5/74
Filed: 1994-12-21
Abstract: A television receiver for automatically judging from a command from a remote controller to control the power on/off, the picture brightness, and the picture contrast of a video projector using a video projector controller provided in the television receiver and for controlling the rolling up and down of a screen using a screen controller also provided in the television receiver.
Patent CA-2140051-A1 (CA)
Inventor: ANDREW MICHAEL A
IPC: A47J31/44
Filed: 1995-01-05
Abstract: A coffeemaker includes a housing and a water reservoir supported within the housing in a reservoir storage portion.  A carafe is supported on a base portion of the housing.  A spreader is mounted within the housing.  The coffeemaker includes a hot water generator having an inlet connected to the water reservoir and an outlet connected to the spreader.  The water reservoir includes a front wall having a handle extending outwardly therefrom for grasping by the user of the coffeemaker. The front wall is concave-shape to increase the space formed between the wall and confronting surface of the handle.  The water reservoir is releasably latched into the storage portion of the housing.
Patent CA-2143677-A1 (CA)
Title: Freezing bags
Inventor: THOMAS MICHAEL JOHN GLYNN
IPC: A61K35/18
Filed: 1993-08-27
Abstract: A freezing bag (10) for the storage of blood cells is formed from two sheets (11) of material joined together with welds (15, 18) defining a con-tainment zone (19). A pocket (20) leads from the con-tainment area (19) and in the weld (18) defining this pocket is an access port (17). An access tube (23) is secured to the port (17) and normally lies within the bounds of a pouch (21) formed by extensions of the sheets (11) beyond the containment zone (19).
Patent CA-2143682-A1 (CA)
Title: Astigmatic correcting intrastromal corneal ring
Inventor: SILVESTRINI THOMAS A
IPC: A61F9/00
Filed: 1993-09-03
Abstract: This invention is an intrastromal corneal ring ("ICR") which is not uniform in dimension. It has, typically, two or more raised areas (54, 60) (or areas of additional bulk) spaced apart from each other on the ring. This ring design, when introduced in-to the stroma and properly adjusted there, permits at least partial correction of astigmatism in the eye.
Patent CA-2145241-A1 (CA)
Title: Modular furniture
Inventor: SIMS JOHN
IPC: A47B83/00
Filed: 1995-03-22
Abstract: A modular furniture system for open-plan offices comprises a cable tower unit, a plurality of panel screens which are attachable to and detachable from the cable tower unit and a workstation surface.   Adjacent panel screens define a workstation area when they are attached to the cable tower unit  into which the workstation surface is moveable.  The workstation surface is free-standing from the cable tower unit and the panel screens.  In a further embodiment, two cable tower units may be attached together through their respective rear faces to form a single cable tower unit having four workstation areas.