baber/WOPTO huggingface dataset:
Patent CA-2060814-A1 (CA)
Inventor: RICKARD ROBERT S
IPC: F26B21/14
Filed: 1992-02-07
Abstract: ABSTRACT      Volatile  compounds  such  as  polychlorinated biphenyls  (PCB's) which contaminate a soil can be removed - without incineration - by a process which generally involves: (1) introducing the contaminated soil  into  a  vessel,  (2)  heating  the  soil  to  a temperature greater than about 300°F, but less than 600°F, preferably in the presence of an inert gas, (3) drawing a vacuum on the vessel to such a degree as to cause the contaminant to flash to a contaminant vapor and (4) condensing the contaminate vapor to a liquid and (5) disposing of said liquid.
Patent CA-2062309-A1 (CA)
Inventor: PEPA SILVIA
IPC: A63F9/08
Filed: 1992-03-04
Abstract: Summary This invention concerns a "puzzle" whose pieces consist of a plastic coloured bracket which hooks to identical brackets to form a chain, which is then placed adjacent to other chains of the same shape to form a screen on which any drawing representing the result of  a pre-established assembly order of the various multi-coloured brackets can be reproduced.
Patent CA-2062532-A1 (CA)
Inventor: MOTT PHILIP J
IPC: F16G5/18
Filed: 1992-03-09
Abstract: A chain-belt that extends between driving and driven means such as the pulleys of a continuous variable transmission wherein the chain-belt is formed of a plurality of interleaved sets of links. The links define a passageway and a plurality of load blocks are positioned in the passageway. Several means for reducing the noise produced by such a chain-belt are disclosed whereby certain of the load blocks in the chain-belt engage the pulleys at a different location to alter and reduce the pattern of noise produced by the chain-belt. The chain-belt also has links with a particular configuration that allows the links to have a short pitch length while still maintaining strength in the links.
Patent CA-2062877-A1 (CA)
Title: Succinic acid compounds
Inventor: SATO FUMIYASU
IPC: C07D209/44
Filed: 1992-03-12
Abstract: Succinic acid compounds of the formula: (see formula I) wherein A represents a heterocyclic group, a 3 to 8-membered cycloalkyl group or a phenyl group which may have one or more substituents selected from the group of a halogen atom, a lower alkyl group having 1 to 6 carbon atoms and a lower alkoxy group having 1 to 6 carbon atoms; B represents a bicyclic amino group which may have 1 or 2 unsaturated bonds, with the proviso that B bonds to the carbon atom of the carbonyl group at the nitrogen atom; R represents a hydrogen atom or combines each other to form a chemical bond; R1 represents a hydrogen atom, a lower alkyl group having 1 to 6 carbon atoms or an aralkyl group having 7 to 10 carbon atoms; when there is an asymmetric carbon atom, enantiomers thereof and racemic mixtures thereof; when there are geometrical isomers, each geometrical isomer, E-isomers thereof, Z-isomers thereof, cis-isomers thereof and traps-isomers thereof; and pharmaceutically acceptable salts thereof, enhance insulin secretion and possess a hypoglycemic activity, and are thus useful for the treatment of diabetes.
Patent CA-2063350-A1 (CA)
Title: Level independent automatic cable equalizer
Inventor: HERSHBERGER DAVID L
IPC: H04N21/647
Filed: 1992-03-18
Abstract: Abstract of the Disclosure A multiple section cable equalizer with a signal level detector (700-800) produces a clipping control signal (4) for amplifiers in each equalizer section (200,220,240), so that a variable level input signal (5,6) is restored to an equalized output signal (87,88) that is free of distortion and attendant bit errors.  A fixed reference clipping stage (300) after the last equalizing stage (240) produces a signal clipped to a final output level.  A feedback path (500,600) restores DC and low frequencies lost due to AC coupling.  A test output stage (400) permits monitoring (110,111) of the operation of the equalizer stages (200,220,240).  The signal level detector contains (in series), a differential amplifier (700) with low pass filtering (R22,C1,R18), a balanced modula-tor detector (710), a voltage amplifier (720), a comparator and peak detector (730,CX4), a transcon-ductance amplifier (740) and a plurality of current mirrors (750,760,770,800) operatively connected to determine a difference current (59) from the output (48,49) of the transconductance amplifier (740) and convert this to a clipping control signal (4) voltage level.  A defeat comparator (790) monitors the output (37) of the comparator and peak detector (790) and replaces the variable difference current (59) with a fixed reference current (800) when an external capacitor (CX4) used by the peak detector (730) appears to be shorted.
Patent CA-2064165-A1 (CA)
Inventor: LAWLESS JOHN J
IPC: G06F3/14
Filed: 1992-03-26
Abstract: VISIBLE PICKING IN A GRAPHICS SYSTEM                 Abstract A   multiple-pass   system   for   determining   the primitives  that  are  visible  in  a  predetermined  pick aperture for a "visible pick" operation.  On the first pass, the primitives contained within the pick aperture and  thus  potentially  visible  are  selected,  and  each selected primitive  is  assigned  a  pick  index  as  an identifier.  On the second pass, the pick indices of the selected primitives are rendered to a temporary frame buffer area, using a Z-buffer for hidden surface removal so that only the pick indices of the primitives visible within the pick aperture are stored in the corresponding frame buffer portion.   On the  third pass,  the  frame buffer portion corresponding to the pick aperture is read to determine the pick indices of the visible primitives. This information is then used to report back to the host the picked primitives.
Patent CA-2064324-A1 (CA)
Title: Cryopump
Inventor: YAGI NOBUAKI
IPC: F04B37/08
Filed: 1992-03-27
Abstract: ABSTRACT     To perform an even, high temperature baking treatment at about 450 ° C to a cryopump for the achievement of an extreme high vacuum, the cryopump is divided into two, a pump section P and a refrigerator R; the pump section P is cut off, with a vacuum state maintained, from the refrigerator R; and cooling stages 49 and 69 of the refrigerator R are connected through detachable heat transfer means 53 and 73 to cryopanel 2 and 5 of the pump section P, whereby the pump section P and the refrigerator R being detachably connected together.  A drive unit of the refrigerator R and a casing 1 of the pump section P are connected together by a bellows 36, and at least a part of the transfer means 53, which connects the cooling stage 49 and 69 of the refrigerator R to the cryopanels 2 and 5 of the pump section P, made of a flexible material.
Patent CA-2069758-A1 (CA)
Inventor: SHIMIZU YASUTOSHI
IPC: B01D69/02
Filed: 1991-09-30
Abstract: ABSTRACT The present  invention  relates  to a filtration membrane which enables only a macromolecular component to be  recovered  with  a  high  efficiency  from  a  culture solution  of  a  microorganism containing  a  particulate component and a macromolecular component.        The filtration membrane according to the present invention is  characterized by pores having an average pore diameter in the range from 10 nm to 10 µm or pores having a cut-off molecular weight in the range from 1 x 104  to  1  x  108,  the  membrane  having  a  permeation resistance in the range  from 5 x 1011 m-1 to 1 x 10l5 m-
Patent CA-2070003-A1 (CA)
Title: Air cushioned game puck
Inventor: WULFF VIRGIL
IPC: A63B71/00
Filed: 1992-06-01
Abstract: ABSTRACT OF THE DISCLOSURE    An air cushioned game puck includes an upper housing and lower housing formed of a molded plastic material and configured to be joined forming a hollow housing having an interior chamber. The housing thus formed defines an upper aperture and a plurality of downwardly facing lower apertures. The housing further defines a downwardly curved skirt which forms a floatation chamber surrounding the downwardly facing apertures. A resilient mounting system secures an electric motor within the housing and supports a driven air impeller therein. A battery energy source is supported within the housing and drives the electric motor. A resilient generally annular bumper encircles the perimeter of the support housing and provides an impact absorbing cushion to protect the motor and air impeller during game play impact. When the motor is energized, the game puck tends to hover or float above the underlying game play surface upon a cushion of air formed within the floatation chamber.
Patent CA-2070551-A1 (CA)
Title: Polymerization inhibitors for acrylic acids and esters
Inventor: GROSSI ANTHONY V
IPC: C07C67/62
Filed: 1992-06-05
Abstract: This invention is directed to certain N,N'-dinitroso phenylenediamines as shown, useful as polymerization inhibitors for acrylic acids and esters thereof. Also disclosed are compositions containing such compounds, and methods for inhibiting polymerization using such compounds and compositions.
Patent CA-2071452-A1 (CA)
Title: Magnetic toner
Inventor: SHIMAMURA MASAYOSHI
IPC: G03G9/083
Filed: 1992-06-17
Abstract: A magnetic toner is constituted by at least a binder resin and a magnetic iron oxide.  The magnetic iron oxide is characterized by having an Fe(II) content of 18.5 - 24.1 wt. %, and shows a BET specific surface area of S (m2/g) and an X-ray diffraction pattern giving a half-value width W (deg.) of a diffraction peak corresponding to 311 plane of the magnetic iron oxide in spinel structure, the values S and W satisfying: 4.5x10-3S + 0.130 ~ W ~ 4.5x10-3S + 0.160, and 4.5 ~ S ~ 11Ø  Alternatively, the magnetic iron oxide is characterized by having a number-average particle size D satisfying a relationship with W of: -0.08D + 0.180 ~ W ~ -0.08D + 0.212, and 0.10 ~ D ~ 0.45.  The relationship between W and S or D indicates a good crystallinity of the magnetic iron oxide which provides the magnetic toner with a stable performance for a long period of time.          The magnetic iron oxide can be obtained through a heating treatment at a temperature of 130 - 360 °C within a gaseous mixture of hydrogen and nitrogen containing 50 vol. % or less of hydrogen or at a temperature of 150 - 450 °C in an inert gas.
Patent CA-2074119-A1 (CA)
Title: Control system and method for switching pivot stands in a tandem rolling mill
Inventor: BOLKEY HAROLD B
IPC: B21B37/52
Filed: 1992-07-17
Abstract: ABSTRACT OF THE DISCLOSURE In a master speed regulator system for a multi-stand rolling mill, a control system and method for switching a pivot stand via a bumpless transfer back and forth from the second stand to the last stand depending on the phases of the mill and while the mill is operating.  A microprocessor is used for recalculating the master speed reference B1, the integral values for the master speed reference integral controller, and the outputs for the tension/automatic gauge integral controllers for the new pivot state based on conditions of the previous pivot state.
Patent CA-2074214-A1 (CA)
Title: Improvements in the in situ pcr
Inventor: BLOCH WILL
IPC: C12Q1/68
Filed: 1992-07-20
Abstract: Improvements to the in situ polymerase chain reaction (PCR), a process of in vitro enzymatic amplification of specific nucleic acid sequences within the cells where they originate, can be achieved by changing the way that the enzymatic reaction is started. Reaction initiation is delayed until the start of PCR thermal cycling, either by withholding a subset of PCR reagents from the cellular preparation until the preparation has been heated to 50° to 80°C, immediately before thermal cycling is begun, or by adding to the PCR reagents a single-stranded DNA binding protein which blocks reaction at temperatures below about 50°C. If the in situ PCR is performed on cellular preparations already attached to a microscope slide, thermal cycling also is facilitated by use of a thermal cycler sample block or compartment designed optimally to hold the microscope slide and any vapor barrier covering the slide.
Patent CA-2077119-A1 (CA)
Title: Child's automotive safety booster seat with a view
Inventor: SILVERMAN MATTHEW H
IPC: B60N2/28
Filed: 1992-08-28
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention features a child's automotive safety booster seat that has enough rigidity to withstand high compression, and, at the same time, is soft and comfortable for the child occupant.  Conflicting safety design objectives are accomplished by constructing the center of the booster seat from a rigid styrofoam, which is overlaid with a thin layer of soft urethane foam for comfort.  The booster seat is designed to have low-profile side member supports along the back and base portions of the seat.  The low-profile supports provide sufficient confinement for the child, while allowing a wide-angle view from the seat (which is also a source of comfort for both children and accompanying adults).  A  portion of the side member base supports is a cutaway section, revealing a well that lies flush with the bottom seat.  In this manner, the car seatbelt can be snugly applied about the child to prevent submarining during a crash.  Thereby, the invention (which provides a child with a full four inches of height) helps position the child so that the child can take full advantage of a shoulder belt that was designed for an adult.
Patent CA-2077780-A1 (CA)
Title: Preparation of a cephalosporin antibiotic using the syn-isomer of a thiazolyl intermediate
Inventor: LIM GARY M F
IPC: C07D501/00
Filed: 1992-09-09
Abstract: ABSTRACT      The present invention provides an aqueous acylation process for the preparation of antibiotic, cefepime dihydrochloride hydrate which is substantially free of the anti-isomer and the .DELTA.2 isomer comprising the N-acylation of 7-amino-3-[(1-methyl-l-pyrrolidinio)-methyl]ceph-3-em-4-carboxylate with the  syn-isomer of 2-(2-aminothiazol-4-yl)-2-methoxyimino acetyl chloride hydrochloride.
Patent CA-2078410-A1 (CA)
Title: Cyan chromogenic leuco dyes for photothermographic materials
Inventor: BIAVASCO RAFFAELLA
IPC: G03C1/498
Filed: 1992-09-16
Abstract: Cyan Chromogenic Leuco Dyes for Photothermographic Materials Abstract of the Disclosure Phothermographic material capable of producing a high density cyan image upon image-wise exposure and thermal development at a relatively low temperature and for a short period of time. The photothermographic material of the invention comprise coated on a support base at least one light-sensitive emulsion layer containing: (a) a binder; (b) a silver source material; (c) a light sensitive silver halide in catalytic proximity to said silver source material, wherein said emulsion layer or an adjacent layer thereto comprises a chromogenic cyan leuco dye. The photothermographic material of the invention may be used to obtain good cyan image of suitable density in single colour or multicolour photothermographic articles. At the same time the chromogenic leuco dye is stable enough not to be oxidised by oxygen of the air or by simple heating and to limitthe fog formation after development.
Patent CA-2079079-A1 (CA)
Title: Quinazolinones and pyridopyrimidinones
Inventor: OLSON RICHARD E
IPC: C07D239/88
Filed: 1992-09-24
Abstract: TITLE OF THE INVENTION QUINAZOLINONES AND PYRIDOPYRIMIDINONES            ABSTRACT OF THE INVENTION         Substituted quinazolinones and pyrido-pyrimidines of structural formula 1   are angiotensin II antagonists useful in the treatment of disorders related to the renin-angiotensin system (RAS) such as hypertension, congestive heart failure, ocular hypertension and certain CNS disorders.
Patent CA-2080654-A1 (CA)
Title: Optical lens with stenopaeic effect
Inventor: KHOURY ELIE
IPC: G02C7/02
Filed: 1992-10-15
Abstract: ABSTRACT OF THE DISCLOSURE     An  optical  lens  for  an  eye  which  has  a substantially transparent body and  a  light  intercepting  pattern  adapted to create  a  stenopaeic  effect  by  selectively  intercepting  and transmitting light along a predetermined light  transmission path defining the  visual axis  of an eye and focusing the same on the fovea centralis.
Patent CA-2083625-A1 (CA)
Title: Nonionic, ph-neutral pressure sensitive adhesive
Inventor: CRANDALL MICHAEL D
IPC: C08F2/30
Filed: 1992-11-24
Abstract: The invention relates to a neutral nonionic latex comprising: (a) about 5 to about 70 weight percent of a nonionic polymer comprising polymerized free-radically polymerizable nonionic monomer, based upon the total weight of the neutral nonionic latex, wherein the free radically polymerizable nonionic monomer comprises: (i) about 90 to about 99 percent by weight of nonionic alkyl acrylate monomer; and (ii) about 1 to about 10 percent by weight of nonionic alkyl amide monomer; wherein the weight percentages of (i) and (ii) are based upon the total weight of (i) plus (ii); (b) about 30 to about 95 weight percent of an aqueous phase, based upon the total weight of the neutral nonionic latex; and (c) about 2 to about 10 weight percent of a nonionic emulsifier based upon the total weight of the nonionic polymer plus the nonionic emulsifier; wherein particles of the nonionic polymer are stabilized by the nonionic emulsifier and dispersed within the aqueous phase. The invention also relates to the neutral nonionic adhesive prepared from the latex and to adhesive coated sheet materials.
Patent CA-2083986-A1 (CA)
Title: Safety valve for compressed gas cylinders
Inventor: GREEN J KENNETH
IPC: F17C13/04
Filed: 1992-11-27
Abstract: ABSTRACT OF THE DISCLOSURE          A safety valve for fitting into a compressed gas cylinder to terminate gas flow from the cylinder when a primary gas valve attached to the cylinder port of the cylinder is  deflected  or  severed.    The  safety  valve  is independently supported in the cylinder port below the location of the primary gas valve.  A threaded housing having a channel for the passage of gas to and from the cylinder is threaded into the cylinder port below the location of the primary gas valve.   A poppet seat is provided  in the housing.   A tubular portion of the threaded housing extends up and fits snugly into the gas passage of the primary gas valve.  A cylindrical housing having apertures for the passage of gas is attached to the threaded housing.   A poppet is provided in the cylindrical housing, which is biased into the poppet seat by a helical spring.   The poppet is held off of the poppet  seat  by means  of  a  frangible  element.    A relatively minor deflection,  or shearing off,  of the primary gas valve will be passed through to the frangible element, resulting in the breaking of the element and thereby allowing the poppet to seat in the poppet seat preventing the flow of gas from the cylinder to the primary gas valve.   A polymer collar may be used in connection with the safety valve to eliminate thread leakage.   A remote triggering device is set forth for seating  the  poppet  in  the  poppet  seat  without  a deflection  or  severing  of the  primary  gas  valve. Further,  a flow restriction device for use with the safety valve is described.
Patent CA-2084440-A1 (CA)
Title: Deodorization of sewage sludge-derived oils
Inventor: SAWATZKY HENRY
IPC: C02F1/04
Filed: 1992-12-03
Abstract: ABSTRACT OF THE DISCLOSURE A method is provided herein for treating a sewage sludge-derived oil to reduce its odoriferous components. The method includes the first step of distilling the sewage sludge-derived oil to 150°C to remove water and volatile organic  components,  and  then  the  essential  step  of circulating a gas consisting essentially of carbon dioxide therethrough at atmospheric pressure.
Patent CA-2085599-A1 (CA)
Title: Phosphene oxide-terminated allene-ene-yne dna-cleaving, antitumor and antibiotic molecules
Inventor: MALIGRES PETER E
IPC: A61P31/04
Filed: 1991-07-30
Abstract: Phosphene oxide-terminated allene-ene-yne compounds are disclosed that possess DNA-cleaving, antimicrobial and tumor growth-inhibiting properties. Methods of making and using those compounds are also disclosed.
Patent CA-2086005-A1 (CA)
Title: Device and method for blowing bubbles
Inventor: PUHAKKA AIMO J
IPC: A63H33/28
Filed: 1991-07-26
Abstract: 2086005 9202281 PCTABS00010 This invention relates to a device and a method for bubble blowing, comprising a tubular member (3) and, inside it, a surface (4) or several surfaces (11). The former widens in the direction of air flow, and the latter causes the airstream to narrow. The device in accordance with this invention is used to blow a large bubble and smaller bubbles inside the same and/or onto its side.
Patent CA-2086958-A1 (CA)
Title: Electric foot warmer
Inventor: SHIH ISHIANG
IPC: A61F7/08
Filed: 1993-01-08
Abstract: ABSTRACT OF DISCLOSURE       This invention describes an improved foot warmer with a low power electric heater.  The electric heater is installed in a thermally insulating container which can accommodate both feet of the user. The electric heater generates heat and raises the temperature of surface of the heater to a value near to or slightly above the normal temperature of the human body. The foot warming efficiency is largely increased by incorporating heat insulating means. The heat warming efficiency is also increased when the heat generated by the electric heater in transferred by conduction to the sole and toes of the foot.          This invention also describes a method to reduce the electro-magnetic field produced by the electric foot warmer.
Patent CA-2086979-A1 (CA)
Title: In combination, a novelty toy and candy holding device
Inventor: COLEMAN THOMAS J
IPC: A23G3/00
Filed: 1993-01-08
Abstract: ABSTRACT   This invention relates to novelties and in particular to a battery-operated candy holding device.  This device has a self-contained power supply that operates a motor and gearing system that produces the proper speed and torque, to spin a piece of candy.  After the candy has been consumed, this device may be used as a hand held motorized toy.  A noisemaker may be added to provide additional enjoyment by the consumer.  The batteries are contained in the handle and are replaceable.  The replaceable candy is designed to fit securely over the spindle shaft inside an aperture at the top of the candy holding device.
Patent CA-2087306-A1 (CA)
Title: Liquid coating composition forming a liquid crystal display element insulating film
Inventor: NOGAMI TATSUYA
IPC: C23C18/12
Filed: 1993-01-14
Abstract: ABSTRACT      A liquid coating composition for the formation of a liquid crystal display element insulating film, which comprises a) hydrolyzed product of tetraalkoxysilane of the general formula (1) below and trialkoxysilane of the general formula (2) below, b) an aluminum salt, and c) a deposition inhibitor, dissolved in an organic solvent.     Si(OR)4           (1) wherein R represents a C1-5 alkyl group R1Si(OR2)3        (2) wherein R1 represents an alkyl, alkenyl or aryl group, and R2  represents a C1-5 alkyl group.     The liquid coating composition according to the present invention is useful as an insulating film for a liquid crystal display element, as it exerts no adverse influence on the display property thereof.
Patent CA-2087728-A1 (CA)
Title: Catalytic equilibration to improve the relative yield of selected halocarbons
Inventor: MANOGUE WILLIAM H
IPC: C07B61/00
Filed: 1991-04-03
Abstract: Gas phase and liquid phase processes are disclosed which use interconversion of CF3CHFCl and CF2HCF2Cl in contact with catalyst consisting essentially of halided aluminum oxide and/or aluminum halide at elevated temperatures to increase the mole ratio of one of said compounds in a composition relative to the other.  Also disclosed is use of said interconversion along with hydrogenolysis in processes for producing mixtures of CF3CH2F and CF2HCF2H from certain compositions comprising CF2HCF2Cl such that the mole ratio of CF3CH2F to CF2HCF2H in the product mixtures produced from said compositions may be increased or decreased.