baber/WOPTO huggingface dataset:
Patent CA-1265205-C (CA)
Title: Electrosurgical generator with high-frequency pulse width modulated feedback power control
Inventor: BOWERS WILLIAM J
IPC: H02M3/28
Filed: 1985-08-09
Granted: 1990-01-30
Abstract: ELECTROSURGICAL GENERATOR WITH HIGH-FREQUEMCY PULSE WIDTH MODULATED FEEDBACK POWER CONTROL Abstract of the Disclosure A pulse width modulation technique regulates the output power of each cycle of a radio frequency surgical signal of an electrosurgical generator. The delivered power of the surgical signal is determined by multiplying the sensed current and the sensed voltage of the surgical signal. An error signal is established by the difference of the actual delivered power with respect to a selected desired output power. The error signal is operatively utilized to modulate the pulse width of each driving pulse which creates the cycles of the surgical signals. Limits on he sensed voltage and sensed current signals are established to limit the output characteristics of the surgical signal. A minimum current limit signal is utilized to limit the maximum output voltage into relatively high impedances. A minimum voltage limit signal is utilized to limit the maximum output current into relatively low impedances. Very rapid response times and very effective power regulation even into relatively high impedance tissues are possible with the pulse width modulation technique. The risks and problems associated with open circuit flashing, alternate path burns and closed circuit shorting are substantially reduced or eliminated.
Patent CA-1308233-C (CA)
Title: Method and apparatus for preparing high-purity metallic silicon
Inventor: ARATANI FUKUO
IPC: F27B3/08
Filed: 1986-05-28
Granted: 1992-10-06
Abstract: ABSTRACT OF THE DISCLOSURE:           High-yield preparation of high-purity metallic silicon  is   performed by subjecting a stream of oxides of silicon  (e.g.  in an aerosol)  to reaction heat in the presence of a mixture of a material of the group including silicon carbide and silicon dioxide and a material of the group including carbon and carbon-containing substance. Preferably,  silicon oxide produced by the reaction is scavenged from exhaust gas leaving the reaction chamber, re-condensed, and returned to the reaction chamber.
Patent CA-1287155-C (CA)
Title: Semiconductor light emission device with multiple diffraction ring
Inventor: YAGI TETSUYA
IPC: H01L33/30
Filed: 1986-07-11
Granted: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE       A semiconductor light emission device is disclosed which comprises a semiconductor light emission element and a light collection multiple diffraction ring for collecting the light emitted from said semiconductor light emission element.
Patent CA-1295240-C (CA)
Title: Biologically stable interferon compositions
Inventor: KWAN HENRY K H
IPC: A61K9/08
Filed: 1986-07-29
Granted: 1992-02-04
Abstract: ABSTRACT         Stable pharmaceutical compositions comprising interferon and thimerosal which are substantially resistant to microorganism contamination and growth are disclosed.
Patent CA-1291154-C (CA)
Title: 2,2-dihalovinyl haloformates, process of preparation and applications thereof
Inventor: BOWMAN MARK P
IPC: C07C239/00
Filed: 1986-08-22
Granted: 1991-10-22
Abstract: NOVEL 2,2-DIHALOVINYL HALOFORMATES, PROCESS OF PREPARATION AND APPLICA-TIONS THEREOF     ABSTRACT OF THE DISCLOSURE     Novel 2,2-dihalovinyl haloformates are described of general formula:                                   in which:          X is a chlorine or bromine: atom;          X1 and X2 are the same or different and are chlorine or bromine. the compounds are prepared by reaction of a 1,2,2,2-tetrahaloethyl haloformate of formula:       . in which:            X1, X2 and X are as described hereinabove;            X3 is chlorine or bromine and is always bromine when X1 and/or X2 is bromine and X4 is chlorine or bromine with a metal such as zinc of magnesium in a solvent.          The novel compounds are very useful for the preparation of 2,2-dihalovinyl carbonates and carbamates which may be used as insecticides or as comonomers.
Patent CA-1290231-C (CA)
Title: System for the production of rubber tubes
Inventor: COLBACHINI GIUSEPPE A
IPC: B29C53/62
Filed: 1986-11-19
Granted: 1991-10-08
Abstract: Abstract:            A system for the production of rubber tubes on elongate horizontal cores      comprises two pairs of drive heads mounted on structures     capable of displacement upwardly and downwardly with respect to coresponding fixed bases    .  Between the drive heads     there is positioned a bed     of predetermined length carrying, with the interposition of suitable cushioning means , intermediate stands     for supporting the cores   .  Adjacent the said bed    , on either side, there is a respective ground bar      positioned substantially at floor level for supporting and guiding carriages   which are movable parallel to the bed
Patent CA-1283779-C (CA)
Title: Arrangement for use in the thermal analysis and modification of molten metal
Inventor: BAECKERUD STIG L
IPC: C22B9/00
Filed: 1987-03-23
Granted: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE         An arrangement for use when thermally analyzing and modifying molten metal, by recording solidification data and controlling the structural modification of the molten metal on the basis of such data.  The arrangement includes a sampling container made from a material which remains substantially stable at the temperature of the molten metal and which is adapted to receive at least one thermoelement for recording the solidification data.          Means are also provided for taking a sample of the molten metal with the aid of the container, and for moving the sample to an area in which substantially the same conditions prevail.  In addition, the arrangement includes recording means and means for modifying the structure of the molten metal as required.  The sampling container is constructed to allow molten metal to pass thereinto when the container is immersed into the molten metal, and to allow a previous content of the container to be displaced therefrom and replaced with fresh molten metal as a result of relative movement between the container and the molten metal.          Means are provided to ensure that a suitable quantity of molten metal is collected during a sampling operation.  This may be achieved by providing the sampling container with openings which are closed and exposed by valve means or by some other suitable arrangement.
Patent CA-1269113-C (CA)
Title: Gunnable refractory composition
Inventor: CASSENS NICHOLAS
IPC: C04B35/66
Filed: 1987-05-07
Granted: 1990-05-15
Abstract: ABSTACT An improved refractory composition especially adapted for use as a gunning mix is made of aggregate (for example, periclase) and a bonding material (for example, aluminum sulfate, boric acid, and citric acid) to which is added attapulgite. The composition may also contain other materials, as is known in the art.
Patent CA-1316534-C (CA)
Title: Tetrahydronaphthaline and indane derivatives
Inventor: KLAUS MICHAEL
IPC: C07D261/08
Filed: 1987-06-03
Granted: 1993-04-20
Abstract: Abstract The compounds of the general formula                 I     wherein X and Y represent -CH2- or >C(CH3)2; Z represents a residue -CHR8-, >CO, >CR8OR7, -CHR8-CHR8-, -CHOR7-CH2-, -CO-CHOR7- or -CHOR7-CHOR7-; R1 represents a 5- or 6-membered, monocyclic heterocyclic residue which can be C-substituted by halogen, lower-alkyl, lower-alkoxy, acyloxy, nitro, hydroxy, amino, lower-alkylamino or di-lower-alkylamino and/or which can be substituted on a ring -NH- group by lower-alkyl: R2 and R3 represent hydrogen, lower-alkyl, trifluoromethyl or halogen and one of the residues R2 and R3 represents trifluoromethyl or lower-alkyl: R4 and R5 represent hydrogen, alkyl, alkoxy or halogen: R6 represents hydrogen, lower-alkyl or a residue -OR7; R7 represents hydrogen, lower-alkyl or acyl: R8 represents hydrogen or lower-alkyl: and several residues R7 or R8 present can be different from one another, can be used as medicaments, e.g. for the treatment of neoplasms or dermatoses. The compounds can be manufactured from a corresponding bicyclic component and a heterocyclic component containing the residue R1 by a Wittig, Horner or Grignard reaction and optional subequent transformation of reactive groups.
Patent CA-1279905-C (CA)
Title: Induction heating pressure welding with linear bus bar joint
Inventor: BROLIN CHARLES A
IPC: B23K13/02
Filed: 1987-06-18
Granted: 1991-02-05
Abstract: ABSTRACT OF THE DISCLOSURE         An   adjustable   length   linear  bus  bar  for conducting  a  current  between  an  induction   heating power  supply  and  an  induction heating coil.  The bus bar includes a fixed bar having a channel  formed  along the  length  of the fixed bar and a movable bar having a portion formed to slidably fit  inside  the  channel  of the  fixed  bar.   A  hydraulic  ram biases the slidable bar against the fixed bar  to  facilitate  the  transfer of  current  between the fixed and movable bars.  A clam shell type of construction allows the inductor  coil  to be  quickly  moved  into and out of a gap between a pair of articles being heated.
Patent CA-1306193-C (CA)
Inventor: KONISHI TAKAO
IPC: A61K39/108
Filed: 1987-08-12
Granted: 1992-08-11
Abstract: Abstract:      The present invention is directed to a vaccine useful for the protection of poultry from colibacillosis infections which comprises as an active ingredient pre-inactivated and ultrasonicated E. coli cells.  The invention is further directed to a method for protecting poultry from colibacillosis infections which comprises inoculating poultry through the cloaca with said vaccine.
Patent CA-1310366-C (CA)
Inventor: ARMAND MICHEL
IPC: H01M10/0565
Filed: 1987-10-29
Granted: 1992-11-17
Abstract: An ionically conductive material useful in electrochemical generators is disclosed. This ionically material comprises a salt in solution in a solvent. The solvent comprises a sulfonated derivative of Formula (I): R1R2N-SO2NR3R4 wherein R1, R2, R3 and R4 are each independently a C1-10 alkyl group or a C1-10 oxaalkyl group.
Patent CA-1292717-C (CA)
Title: Bulk bag unloading station
Inventor: PENDLETON STEVENS P
IPC: B65B69/00
Filed: 1987-12-09
Granted: 1991-12-03
Abstract: ABSTRACT OF THE DISCLOSURE    A bulk bag unloading station having a frame from which a bag containing powdery, granular or fibrous material and having a bottom spout, may be suspended; a base plate with an opening; and a mechanism above the base plate for intermittently shaking a bottom portion of the bag to aid the flow of material from the spout.  The mechanism has a number of liftable petals actuated pneumatically.
Patent CA-1318671-C (CA)
Title: 6-piperidino-2(1h)-quinolinone
Inventor: PHILLIPS ARTHUR P
IPC: C07D215/38
Filed: 1987-12-22
Granted: 1993-06-01
Abstract: Abstract The present invention is concerned with the compound of formula (I)      I   and salts thereof.
Patent CA-1330510-C (CA)
Title: Cylinder block for internal combustion engine
Inventor: SAKURAHARA KAZUO
IPC: F02F7/00
Filed: 1988-02-01
Granted: 1994-07-05
Abstract: ABSTRACT OF THE DISCLOSURE      A water-cooled multi-cylinder internal combustion engine comprises a water jacket which extends deeper towards the crank case than conventional water jackets without increasing the width of the water jacket.  As a result, the lubricating oil in the crank case is effectively cooled by the cooling water.  Further, the narrower and deeper water jacket improves the overall cooling efficiency of the cylinder block and the reduced volume of the water jacket speeds up the warm-up of the engine.  Casting of this cylinder block is made possible by providing projections at the bottom ends of the water jacket intermediate between adjacent cylinders.  These projections facilitates the process of pulling out the core for defining the water jacket during the casting process from the water jacket of the cylinder block without causing any undue stress either to the core or to the cylinder block.
Patent CA-1295477-C (CA)
Title: Rim engaging finger for a wheel clamp
Inventor: SWAYNE RONALD D
IPC: G01B5/255
Filed: 1988-05-13
Granted: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE           A rim engaging finger is configured to engage a wide variety of passenger vehicle and truck wheel rims, so that a wheel clamp upon which an array of three of the fingers are mounted may be attached to the wheel rims. The clamp is configured to carry a variety of wheel alignment devices.  The rim engaging finger is rotatable in its position  on the clamp so that its tip may be put in contact with the inside or the outside of the periphery of a vehicle wheel rim.  Additionally, fallow grooves on the finger may be put in contact with the fallow of a vehicle wheel rim for supporting the clamp on the wheel.  An inner knife edge is also included to provide contact with certain wheel rim configurations by the array of fingers for clamp mounting purposes.
Patent CA-1298934-C (CA)
Title: Absorbent pad
Inventor: SMITS DONALD M
IPC: A61F13/56
Filed: 1988-06-09
Granted: 1992-04-21
Abstract: ABSTRACT OF THE INVENTION          A disposable absorbent pad for use as a baby diaper or an adult incontinent brief wherein the backing sheet of the diaper has a pair of continuous bands of adhesive arranged in a stepped generally longitudinal configuration thereon.  An elas-tic band is disposed over the mid-portion of the adhesive being stepped to the side, out of contact with the elastic.  When the pads are cut in the assembly process, only that portion of elastic in contact with the adhesive causes the pad to gather.          The remaining end portions of the adhesive bands are secured to the intermediate layer of absorbent fluff material, helping it remain in place, and act as a fluid barrier on the sides of the absorbent pad.
Patent CA-1340438-C (CA)
Inventor: ATKINS MARTIN PHILIP
IPC: B01J31/10
Filed: 1988-08-22
Granted: 1999-03-16
Abstract: A process for preparing a copolymer, in the form of beads, of a vinyl sulphonic acid ester and a polyethenically unsaturated monomer which is convertible by hydrolysis, advantageously in the presence of ultrasound, to a copolymer, also in the form of beads, of a vinyl sulphonic acid and a polyethenically unsaturated monomer which may be used as a catalyst.
Patent CA-1311595-C (CA)
Title: Process and equipment for making composite tubes
Inventor: NELSON DAVID R
IPC: B29C33/38
Filed: 1988-09-08
Granted: 1992-12-22
Abstract: Abstract of the Disclosure A process and equipment for making seamless composite tubes.  Composite material is applied on a mandrel which includes an inflatable bladder and inserted in a single piece mold.  The bladder is pressurized for pressing the composite material against the mold wall for molding and curing thereof.  In order to prevent seizing of the tube by the mold and thus allow easy removal of the cured tube, the mold is composed of a composite of resin impregnated carbon fiber material wherein the carbon fiber material has a negative coefficient of thermal expansion along the length thereof and is oriented at an angle of between about 15 and 40 degrees relative to a radial plane of the mold.  In order to eliminate the use of inefficient and inconvenient cure ovens,  an heat generating element is disposed internally  of  the  mandrel for  curing of  the composite material.
Patent CA-1329058-C (CA)
Title: Window frame apparatus
Inventor: SAYER BERTRAM
IPC: E06B3/44
Filed: 1988-09-16
Granted: 1994-05-03
Abstract: WINDOW FRAME APPARATUS               ABSTRACT OF THE DISCLOSURE         A window frame apparatus includes flat metal inserts which are inserted into hollow plastic members which form a frame.  The metal inserts are disposed so that the direction of maximum resistance to bending opposes the direction of wind loading, thereby providing a light-weight yet relatively stiff apparatus.
Patent CA-1316595-C (CA)
Title: Optical information recording and reproducing apparatus
Inventor: YOSHIDA YOSHIO
IPC: G11B11/105
Filed: 1988-09-20
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE         An improved optical information recording and reproducing apparatus is disclosed which is capable of detecting recording errors simultaneously with recording function for reducing recording time.  The apparatus does not require particularly high accuracy for an optical system,  and  thereby avoids complications  in the construction and consequent large size of the optical system.
Patent CA-1317036-C (CA)
Title: Method and apparatus for imaging the anatomy
Inventor: ALLEN GEORGE S
IPC: A61B19/00
Filed: 1988-11-01
Granted: 1993-04-27
Abstract: ABSTRACT             FIDUCIAL IMPLANT AND METHOD OF USING SAME           The present invention pertains to a fiducial implant for the human body that is detectable by an imaging system.  The invention is comprised of a first portion and a second portion.          The first portion is configured to be detected by an imaging system when place beneath the skin.  The second portion is configured for fixed attachment to a bone beneath the skin without penetrating entirely through the bone and without fracturing the bone.  The first portion is sufficiently large and comprised of a material for detection by an imaging system, and sufficiently small to avoid the distortion of the skin when placed at an interface between the skin and the bone.  The first portion also has at least a portion which is spherical and defines a surface for cooperating with a tool for securing the second portion to the bone.  Additionally, the placement of three fiducial implants into a portion of anatomy of the human body allows for the recreation of a particular image slice of the portion of the anatomy taken by an imaging system with respect to a first time period, at subsequent imaging sessions and also with different scan modalities.  This provides a doctor with the ability to accurately follow the progress of the portion of the anatomy of interest.          Moreover, the existence of three fiducial implants allows a target to be identified within the portion of anatomy relative to an external coordinate system.  The portion of anatomy with the target may then be operated on, for instance, robotically, or precisely irradiated.
Patent CA-1328134-C (CA)
Inventor: KUROKAWA KANEYUKI
IPC: G11B7/135
Filed: 1989-02-23
Granted: 1994-03-29
Abstract: METHOD FOR DETECTING TRACKING ERROR    IN OPTICAL DISK SYSTEM AND ITS OPTICAL SYSTEM DEVICES THEREFOR              ABSTRACT OF THE DISCLOSURE      A method for detecting a tracking error in a process of tracking a groove track on a recording medium includes the/steps of:  irradiating a first light spot onto a groove track on a recording medium as a focused light beam for carrying out recording, reproducing, or erasing of information on the groove track of the recording medium, and irradiating a second and a third light spots onto an area around the groove track on the recording medium as focused light beams simultaneously with the irradiation of the first light spot, the second and third light spots are irradiated onto an area around the groove track on one side of the first light spot in a manner such that each of the second and third light spots covers both an inside and outside of the groove track.
Patent CA-1336414-C (CA)
Inventor: OZAKI AKIO
IPC: C12R1/06
Filed: 1989-03-22
Granted: 1995-07-25
Abstract: A novel D-amidase is described.  The enzyme specifically hydrolyzes D-.alpha.-alanineamide into D-.alpha.-alanine.  It is produced by culturing a microorganism belonging to the genus Arthrobacter, and is useful as an enzyme for efficiently producing D-.alpha.-alanine having a high optical purity and/or L-.alpha.-alanineamide from DL-.alpha.-alanineamide or D-.alpha.-alanineamide at low cost.
Patent CA-1337628-C (CA)
Title: Enzyme treated low moisture content comestible products
Inventor: SLADE LOUISE
IPC: A23L7/104
Filed: 1989-04-19
Granted: 1995-11-28
Abstract: Low moisture content comestibles having reduced water regain or increased tolerance to moisture are produced by enzymatically treating a farinaceous  material with an enzyme composition comprising pentosanase or beta-glucanase, or mixtures thereof to reduce its net-work forming swellable water-soluble hemicellulose content.  The hydrolysis of the water-soluble pentosans, beta-glucans or mixtures thereof is conducted so that a substantial portion of the hydrolysis product has a linear or backbone degree of polymerization of less than about 100, more suitably less than about 75, preferably less than about 50, most preferably less than 17.          In addition, the hydrolysis is conducted so as to minimize the production of mono and/or di-saccharides.  The low moisture content comestible products include low moisture content baked good such as cookies, crackers, and biscuits, farinaceous pet snacks, plant protein extracts, hot cereals, ready-to-eat cereals, low calorie flours and low calorie flour fractions.  The enzyme compositions which are used are preferably substantially completely free of proteases and amylases so as to avoid reducing the functionality of proteins and starch, respectively. The comestible products have a moisture content of less than about 20 percent by weight.  Hemicellulose hydrolyzates may also be produced for incorporation into comestibles.
Patent CA-1333559-C (CA)
Title: Reinforced thermoplastic honeycomb structure
Inventor: FELL BARRY M
IPC: B29K105/08
Filed: 1989-04-28
Granted: 1994-12-20
Abstract: A method of manufacturing thermoplastic structures wherein the structure comprises a fiber-reinforced thermoplastic resin.  The fiber reinforcement may be in the form of a woven or non-woven web.  The thermoplastic resin may be introduced therein in the form of staple fibers blended into the non-woven web or by melt-coating the web or by laminating a pre-formed thermoplastic resin film to the web.  The latter technique allows uniform distribution of a radar-absorbing material, coated on or blended into the pre-formed thermoplastic film, throughout the honeycomb.
Patent CA-1323110-C (CA)
Inventor: BANDOH TADAAKI
IPC: G06F12/08
Filed: 1989-05-02
Granted: 1993-10-12
Abstract: ABSTRACT OF THE DISCLOSURE         A multi-port cache memory of multi-port memory structure is connected to and shared with a plurality of processors.  The multi-port cache memory may have two sets of interface signal lines, for instruc-tion fetch and for data read/write, to each processor.          The multi-port cache memory may also be used only for data read/write.  The system performance is further improved if a plurality of processors and a multi-port cache memory are fabricated on a single LSI chip.
Patent CA-1330855-C (CA)
Title: Method for the polymerization rotation casting of lenses and equipment for performing this method
Inventor: SULC JIRI
IPC: B29C41/38
Filed: 1989-05-12
Granted: 1994-07-26
Abstract: ABSTRACT OF THE DISCLOSURE:         A method for the polymerization rotation casting of lenses containing a convex and concave surface in molds being placed in a rotation mechanism, where the convex surface of the lens is formed by the rotation of a liquid having a higher specific weight than that of monomer mixture and is immiscible with the monomer mixture and also with its individual components.  The concave surface of the lens is formed by a convex surface of the mold while the remaining space of the mold is filled with the liquid having a higher specific weight.  The method for the rotation casting may be carried out both in a column arrangement of molds and in single separate mold.  And an equipment for carrying out this method.