baber/WOPTO huggingface dataset:
Patent CA-1306057-C (CA)
Title: Liquid crystal optical read/write storage medium and system using same
Inventor: FERGASON JAMES L
IPC: G11B7/25
Filed: 1987-12-22
Granted: 1992-08-04
Abstract: ABSTRACT An  optical  read/write information storage  system  (2), includes  a liquid crystal information storage medium (1)  for storing information written thereto and being capable of being read, including plural volumes (21) of liquid crystal material (23)  in  a containment medium (24),  the  volumes  of  liquid crystal  material  being  operative  to  modulate  or  not  to modulate light,  e.g. by transmitting or scattering light as a representation of logic 1 and logic 0 information, the storage medium  being responsive to a first energy input to assume and to  store  one  detectable output condition and  to  a  second energy input to assume and to store a second detectable output condition,  input  energy  systems  for  writing  and  erasing information,  and an optical reading device for detecting such output conditions of the storage means as a representation  of information stored therein.   Pleochroic dye (250) may be used to enhance thermal effects.
Patent CA-1285633-C (CA)
Title: Cold/hot water discharging apparatus
Inventor: MUROYA YUKIHIRO
IPC: G05D23/13
Filed: 1987-12-24
Granted: 1991-07-02
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to a cold/hot water discharging apparatus which is used for cold/hot water massage shower, and the like.  In order to alternately switch and supply hot water of a predeter-mined temperature supplied from a hot water source to a discharge portion, a valve of a cold/hot water mixing tap is driven by a motor and is reciprocared in a pre-set period between a position where high temperature hot water is discharged and low temperature hot water is discharged.  In each of the periods for discharging low/high temperature hot water, an optimum gain of this period is determined from the previous period and previous gain so as to shorten the discharge period of cold/hot water and to obtain a stable curve of the discharge hot water.
Patent CA-1287850-C (CA)
Title: Rotary steam joint
Inventor: LUCAS JAMES C
IPC: F28D11/02
Filed: 1988-01-22
Granted: 1991-08-20
Abstract: ROTARY JOINT     Abstract of the Disclosure A rotary joint for establishing  supply and removal connections for flow of a working fluid between stationary external piping and the interior of a rotating drum, the joint including a stationary tubular shaft assembly about which a flanged housing is rotatably journaled, wherein a heat exchange chamber system is formed interiorly within the shaft assembly annularly thereabout and along the housing journals with a baffle within the chamber system for causing a heat exchange fluid to circulate throughout the annular and longitudinal extent of the chamber system thereby relieving the housing journals from any opposed heat exchange effects of the working fluid to enable high speed operation of the rotary joint at either relatively high or low temperatures.
Patent CA-1336913-C (CA)
Title: Saturated fatty acid amides as inhibitors of acyl-coa:cholesterol acyltransferase
Inventor: HOEFLE MILTON LOUIS
IPC: A61K31/165
Filed: 1988-01-27
Granted: 1995-09-05
Abstract: Certain substituted amides of saturated fatty acids are potent inhibitors of the enzyme acyl-CoA:cholesterol acyltransferase and are thus useful agents for inhibiting the intestinal absorption of cholesterol.
Patent CA-1319196-C (CA)
Title: Card or pass in plastic material incorporating an integrated memory circuit
Inventor: VIRDIA ANTONIO
IPC: G06K19/06
Filed: 1988-03-15
Granted: 1993-06-15
Abstract: "CARD OR PASS IN PLASTIC MATERIAL INCORPORATING AN INTEGRATED MEMORY CIRCUIT"          A B S T R A C T     The present invention relates to a card or pass comprising at least two layers, suitably mated, of shock-resistant plastic film transparent to infrared light.  Inside these layers, identifica-tion optical codes, readable in transparency by means of infrared rays, are printed. Inside these layers still, a seat, suitably shaped to receive an integrated memory circuit connected to the outside by means of four contacts, is provided.            Each  contact  has  a  very precise  function  according  to  its connection with the circuit which comprises an integrated memory circuit of EEPROM technology with interfacing protocol on two wires and with voltage converter on chip so as to eliminate the necessity of several feeding voltages.
Patent CA-1339827-C (CA)
Inventor: OSADA YOSHIYUKI
IPC: H01L21/205
Filed: 1988-03-25
Granted: 1998-04-21
Abstract: A crystal article comprises; a substrate having i) a nonnucleation surface (SNDS) having a small nucleation density, ii) at least one single-nucleation surface (SNDL-S) provided adjacent to said nonnucleation surface (SNDS), having an area small enough for a crystal to grow from only a single nucleus and having a larger nucleation density (NDL) than the nucleation density (NDS) of said nonnucleation surface (SNDS), and iii) at least one multiple-nucleation surface (SNDL-M) having an area large enough for crystals to grow from plural nuclei and having a larger nucleation density (NDL) than the nucleation density (NDS) of said nonnucleation surface (SNDS); at least one monocrystal grown from said single nucleus and extending over said single-nucleation surface (SNDL-S) to cover part of said nonnucleation surface (SNDS); and a polycrystalline film grown from said plural nuclei to cover said multiple-nucleation surface.
Patent CA-1309109-C (CA)
Title: Process for purifying crude 4-aminophenol
Inventor: KAO JAMES T F
IPC: C07C215/76
Filed: 1988-04-27
Granted: 1992-10-20
Abstract: ABSTRACT                  A process for the purification of crude 4-aminophenol which was prepared by the catalytic hydrogenation of nitrobenzene in aqueous sulfuric acid is described involving: adjusting the pH of an aqueous solution of crude 4-aminophenol to pH 4.0-5.0 at a temperature between 75°C and 85°C; mixing the aforesaid solution with toluene as the solvent, in order to extract various impurities and the dissolved nitrobenzene starting material; adjusting the pH of the resultant solution as required to maintain it at pH 4.0-5.0; allowing the resultant mixture to settle thereby forming a top organic layer and a bottom aqueous raffinate layer which raffinate contains 4-aminophenol and the by-product material, ortho-aminophenol; separating the two layers and repeatedly extracting the raffinate layer with toluene at pH 4.0-5.0 at a temperature of 75-85°C until most impurities have been removed from the resultant final raffinate; adding to the resultant raffinate, a charcoal decolorizing agent and a sodium sulfite type salt, which are then removed, leaving a filtrate which contains the 4-aminophenol and also the by-product ortho-aminophenol; adjusting the pH of said filtrate to pH 6.5-8.0 and cooling it to a temperature below 10°C; separating the precipitated pure 4-aminophenol from the by-product ortho-aminophenol which remains in the solution.
Patent CA-1308723-C (CA)
Inventor: SUGIMURA YUKIO
IPC: C07F15/00
Filed: 1988-05-09
Granted: 1992-10-13
Abstract: ABSTRACT     Compounds of formula (I):                               (I) in which: A and B are separately monoamines or together diamines; and Z is a group of formula (II) or (III):                             (II) (III) (in which R1, R2  and R7  are various organic groups, n is 0, 1 or 2 and X is a direct carbon-carbon bond or lower alkylene) show valuable anti-tumor activity and may be prepared by reacting an amine-platinum complex with a compound providing the group represented by Z.
Patent CA-1313999-C (CA)
Inventor: GUALA PIERGIACOMO
IPC: B01L99/00
Filed: 1988-05-27
Granted: 1993-03-02
Abstract: ABSTRACT OF THE DISCLOSURE A  bacteriological  test  apparatus  employing  bacterial samplings "slide"  devices  for  sampling  bacteria  from  work  surfaces of  kitchens  and  the  like  comprises  a  rack  defining  a plurality  of  seats  adapted  to  accomodate  a  corresponding plurality  of  slides,  and  a  carrying  case  enclosing  said rack and formed integrally with the rack.    The  apparatus  has  the  advantage  of  enabling  easier sampling  of  bacteria  even by personnel  obliged to operate in suburban areas away from specially equipped laboratories.
Patent CA-1298877-C (CA)
Title: Radio telephone apparatus with voice actuated dialing
Inventor: MARUI KUNIYOSHI
IPC: H04M1/60
Filed: 1988-05-27
Granted: 1992-04-14
Abstract: Abstract of the Disclosure A radio telephone apparatus comprises a first converting means for converting human utterances into acoustic signals, second converting means for converting the acoustic signals into digital signals representing the human utterances, means for storing a plurality of different address data corresponding to a plurality of data of telephone numbers, means for comparing the digital signals with the address data, first selecting means for selecting address data of identical contents with the digital signals as a result of the comparison by said means for comparing, second selecting means for selecting a channel for broadcast of an origination signal and means for broadcasting the origination signal including at least the given data of telephone number corresponding to the address data selected by the first selecting means over the channel selected by the second selecting means.
Patent CA-1334920-C (CA)
Title: Use of parenchymal cell cellulose to improve comestibles
Inventor: WEIBEL MICHAEL K
IPC: A23L13/40
Filed: 1988-06-14
Granted: 1995-03-28
Abstract: Improved comestibles including foods, drugs and cosmetics are provided incorporating parenchymal cell cellulose.  Improved properties including physicochemical, rheological and nutritional properties result from such incorporation.  Stabilized dispersions, emulsions, foams and frozen materials can preferably be provided through employment of the preferred embodiments.
Patent CA-1326046-C (CA)
Inventor: MAEDA TOSHIHIKO
IPC: B01J31/02
Filed: 1988-06-23
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE     Novel phosphonium salts of the general formula            .   wherein R1 and R2 each represents a hydrogen atom or a hydrocarbon group of 1 to 12 carbon atoms which may optionally be substituted; R3 is a hydrogen atom or a hydrocarbon group of 1 to 5 carbon atoms which may optionally be substituted; R4, R5 and R6 each represents a hydrocarbon group of 1 to 8 carbon atoms which may optionally be substituted; X is a hydroxyl group, a hydroxycarbonyloxy group or a lower alkylcarbonyloxy group, and processes for production of the salts are described.  Telomerization catalysts containing said phosphonium salts and processes for production of straight-chain alkadienyl compounds using the same catalysts are also provided.
Patent CA-1295665-C (CA)
Inventor: PLICHTA EDWARD J
IPC: H01M10/0566
Filed: 1988-06-27
Granted: 1992-02-11
Abstract: ABSTRACT   1 to 2 mol dm-3 LiAsF6 in dimethylcarbonate or 1 to 2 mol dm-3 LiAsF6 in dimethylcarbonate mixtures with methyl formate in which the mass percent of the dimethylcarbonate compound can vary from 25 mass percent to 100 mass percent is used as the electrolyte in a lithium rechargeable electrochemical cell.  The cell also includes lithium as the anode and a lithium intercalating compound as the cathode.
Patent CA-1310573-C (CA)
Title: Protective electromagnetically transparent window
Inventor: SASSA ROBERT L
IPC: B32B27/12
Filed: 1988-08-05
Granted: 1992-11-24
Abstract: ABSTRACT OF THE INVENTION A weather-, moisture, and gas-resistant radome and laminate for radomes comprising layers of porous expanded polytetrafluoroethylene (EPTFE) membrane, fluorinated thermoplastic membrane, and woven EPTFE textile backing fabric.  Superior electromagnetically transmission characteristics, excellent physical and electrical properties.
Patent CA-1313040-C (CA)
Title: Method and apparatus for measuring a three-dimensional curved surface shape
Inventor: UESUGI MITSUAKI
IPC: G01B11/25
Filed: 1988-10-07
Granted: 1993-01-26
Abstract: ABSTRACT    A method and apparatus for measuring a three-dimensional curved surface shape based on a new measuring principle that a surface of an object to bemeasured is coded with information relating to a slit light which is used as a medium and moved or rotated at a constant speed.  The manner in which a linear reflected pattern of the slit light is moved over the surface of the object to be measured is picked up by a television camera to form a composite image in which a value of each of picture elements in the image is represented by information relating to the slit light, e.g., a position, time or projection angle of the slit light at an instant that the slit light passes through one of positions on the object surface corresponding to that picture element.  Then, a difference in value between each corresponding picture elements of the composite image and another composite image formed similarly with respect to a reference plane is determined to measure a three-dimensional curved surface shape of the object to be measured.
Patent CA-1317621-C (CA)
Title: Bush
Inventor: WOODROW MICHAEL
IPC: F16B5/01
Filed: 1988-11-02
Granted: 1993-05-11
Abstract: ABSTRACT OF THE DISCLOSURE      A bush for installation in easily crushed or marred work material such as apertured honeycomb sheet or fibre reinforced plastics material, enables the work material to be secured to a support, by means of a nut and bolt, without damage.  The bush has a cylindrical body longer than the thickness of the work, and a flange for abutting a face of the work at one end of the body.  The other end of the body has an annular boss which projects beyond the other face of the work, and, peripherally of the boss an annular skirt which during installation can be deformed to provide a retaining flange for engaging the other face of the work.  A bolt can then be passed through the bush and a support, and secured with a nut.  Only the bush directly engages the work.                                                       P.326/US
Patent CA-1328862-C (CA)
Inventor: ONDUSH ANDREW P
IPC: B02C13/14
Filed: 1988-11-18
Granted: 1994-04-26
Abstract: ABSTRACT   A method and apparatus for fine grinding materials normally difficult to grind at ambient temperature, e.g. plastic and elastomeric materials and foodstuffs in a fluid classification type impact mill utilizing liq-uid cryogen to pre-cool the material to be ground, to cool the material and the mill during grinding and to recycle vaporized cryogen from the mill back into the mill as the medium for conveying material to be ground into the mill.
Patent CA-1323996-C (CA)
Title: Portable particle analysers
Inventor: LUDLOW IAN K
IPC: G01N/
Filed: 1988-12-14
Granted: 1993-11-09
Abstract: Abstract Portable Particle Analyzer A portable particle analyser is compact and can determine the size, geometry and number of particles in a sample of fluid.  A laser beam 15 intercepts the flow of fluid 17 at the first focal point of a parabolic mirror 11.  Light is scattered and collected by radiation collectors 13 and low angle scattered radiation is detected in a second chamber 19 by reflection by an ellipsoid mirror 20 towards a radiation collector 21.  Photomultiplier units 23 convert the radiation collected into electrical signals for analysis.
Patent CA-1311805-C (CA)
Title: Filament power compensation for magnetron
Inventor: SMITH PETER H
IPC: H05B6/66
Filed: 1988-12-15
Granted: 1992-12-22
Abstract: FILAMENT POWER COMPENSATION FOR MAGNETRON           ABSTRACT OF THE DISCLOSURE      An arrangement for providing power to a cooking magnetron uses a full wave bridge inverter circuit connected to a power transformer.  The filament of the magnetron is energized by a secondary winding of the power transformer.  The inverter controls the microwave output of the magnetron by duty cycle control.  In order to stabilize filament power against variations due to changes in the inverter duty cycle, a saturable reactor is connected in series with the filament.  The reactor has a control winding which changes the impedance of the reactor in order to compensate for variations in the power supplied by the power transformer.  The control winding of the reactor may be supplied with a voltage dependent upon the magnetron current.  Since the magnetron current depends on the duty cycle of the inverter, this voltage may be used to make the impedance of the reactor dependent upon the duty cycle.
Patent CA-1338739-C (CA)
Title: Process for preparation of substituted-aminomethylphosphonic acids
Inventor: FEEMAN JAMES F
IPC: C07F9/38
Filed: 1989-02-15
Granted: 1996-11-26
Abstract: A process is disclosed for the preparation of N-substituted aminomethyl-phosphonic acids, particularly methylaminomethylphosphonic acid, in high yield and purity with related low production cost using  conventional equipment, which comprises the steps of (a) reacting an N-substituted, amide with paraformaldehyde in a low molecular weight carboxylic acid to form the N-methylol derivative, (b) reacting the N-methylolamide with PCl3 in excess low molecular weight carboxylic acid and heating to form the phosphonomethyl derivative, (c) hydrolyzing acid chloride and acid anhydride with water, (d) distilling off the low-molecular weight carboxylic acid, (e) hydrolyzing the N-acyl group with water and strong acid catalyst, (f) adding low molecular weight alcohol to crystallize the N-substituted-aminomethylphosphonic acid and (g) filtering, and washing the product.
Patent CA-1324708-C (CA)
Title: Process for fixing wooden articles pressure treated with chromated-copper-arsenate
Inventor: RUDDICK JOHN N R
IPC: B27K5/04
Filed: 1989-03-07
Granted: 1993-11-30
Abstract: PROCESS FOR FIXING WOODEN ARTICLES PRESSURE  TREATED WITH CHROMATED-COPPER-ARSENATE                ABSTRACT OF THE DISCLOSURE           This  invention  is  directed  to  a  process  for accelerating the fixation of chromated-copper-arsenate  (CCA) preservative in wooden articles.   The invention particularly pertains to a process of fixing CCA in softwoods such as lodgepole pine, so that it does not leach.  A process of fixing chromated-preservatives in freshly treated wood by applying moderate heat to the treated wood while initially maintaining the treated wood in a highly humid or saturated atmosphere, and subsequently maintaining the atmosphere about the freshly treated wood at a controlled equilibrium moisture content level.
Patent CA-1311498-C (CA)
Title: Process for preparing high-purity bisphenol a
Inventor: IIMURO SHIGERU
IPC: C07C39/16
Filed: 1989-03-10
Granted: 1992-12-15
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is a method for preparing high-purity bisphenol A. The method comprises a principal process and a sub-process.  The principal, process comprises a first reaction step for reacting phenol with acetone, a first concentration adjusting step, a first crystallization step for precipitating crystals of the adduct of bisphenol A with phenol, a first separation step for separating a solution containing the crystals of the adduct into the crystals and the mother liquor and a phenol removing step for removing phenol from the crystals of the adduct.  The sub-process comprises a second reaction step for reacting p-isopropenylphenol with phenol, a second concentration adjusting step, a second crystallization step, a second separation step for separating a solution containing the second crystals of the adduct into the second crystals and the second mother liquor and a cleaving step.   The first mother liquor from the principal process is fed to the sub-process and the second crystals of the adduct from the sub-process are fed to the principal process.  Also disclosed is a method for preparing high-purity bisphenol A which comprises a principal process and a sub-process.  The principal process comprises a first reaction/catalyst removing step for reacting phenol with acetone and removing the catalyst, a crystallization step for precipitating the adduct of bisphenol A with phenol, a solid-liquid separation step for separating the reaction solution into the crystals of the adduct and the mother liquor and a phenol removing step for removing phenol from the adduct crystals.  The sub-process comprises a second reaction/catalyst removing step for reacting p-isopropenylphenol with phenol and removing the catalyst, a second phenol removing step, a distillation step for separating bisphenol A and low boiling and high boiling substances and a cleaving step.  The mother liquor from the principal process is fed to the sub-process and the distilled bisphenol A from the sub-process is fed to the principal process.
Patent CA-1313788-C (CA)
Title: Transfer apparatus
Inventor: WEDEL GREGORY L
IPC: D21F3/02
Filed: 1989-03-22
Granted: 1993-02-23
Abstract: ABSTRACT OF THE DISCLOSURE A transfer apparatus is disclosed for transferring a web from a press nip to a dryer section.  The apparatus includes a backing  roll  and a press member  which cooperates with the backing roll for defining therebetween the press nip.  A press blanket extends through the press nip such that the web is disposed between the blanket and the backing roll during passage of the web through the press nip.  A backing drum is disposed downstream relative to the press nip such that the blanket and the web extend contiguously relative to each other from the press nip to the backing drum.   A dryer  felt cooperates with the backing drum such that the web is disposed between the blanket and the felt during passage of the blanket, web and felt around the backing drum and a transfer mechanism is disposed adjacent to the backing drum for transferring the web without an open draw from the blanket to the felt such that the web follows the felt through the dryer section.
Patent CA-1336311-C (CA)
Inventor: DIEDERICH WALTER J
IPC: F21H3/00
Filed: 1989-06-02
Granted: 1995-07-18
Abstract: A gas mantle has an operating color temperature of about 2300K and consists essentially of from about one percent to ten percent by weight of ceria and from about ninety percent to ninety-nine percent by weight of erbia.
Patent CA-1290801-C (CA)
Title: Method and apparatus for stabilizing oscillation frequency separation among plural laser devices
Inventor: SHIMOSAKA NAOKI
IPC: H01S5/40
Filed: 1989-07-19
Granted: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE     Reference signals having a predetermined frequency interval are produced in use of a wavelength tunable laser device and an optical resonator.  Plural laser devices are controlled to radiate light outputs with oscillation frequency separation.   The light outputs and a frequency swept light output of the wavelength tunable laser device are combined, and then converted to beat signals.  The reference signals and the  beat  signals  are  compared  to detect  time differences of signal occurrance timings. The plural laser devices are driven with the oscillation frequency separation, such that the time differences become a predetermined value.  Where a beat pulse is not produced due to a fault in at least one laser device among the plural laser devices,  a dummy pulse is produced to produce a signal of the time differences.          The laser device of the fault may be driven with an injecting current varying in a predetermined range to produce a beat pulse.
Patent CA-1327792-C (CA)
Inventor: HANSEN GUENTER
IPC: C07C317/36
Filed: 1989-08-08
Granted: 1994-03-15
Abstract: Abstract of the Disclosure:   Polyazo dyes useful for dyeing leather in the free form or as copper, chromium, iron, cobalt or nickel complexes have the formula   where m is 0, 1 or 2, n is 0 or 1, p is from 1 to 2, q is from 0 to 1, and R1, R2, R3, R4, R5, R3, R7, X, Y and the ring A are each as defined, and may be prepared from aniline derivatives of the formula   where m is 0, 1 or 2, n is 0 or 1, and X, R1, R2 and R3 are each as defined.