baber/WOPTO huggingface dataset:
Patent CA-2015551-A1 (CA)
Title: Multifunctional viscosity index improver exhibiting improved low temperature viscometric properties
Inventor: CHUNG DAVID YEN-LUNG
IPC: C10M159/12
Filed: 1990-04-26
Abstract: ABSTRACT OF THE DISCLOSURE     Oil  soluble  composition  of  matter  useful  as  a multifunctional  viscosity  index  modifier  for  oleaginous compositions comprising reaction product of:         (i)  (a)  copolymer  of  ethylene  and  at least one other  alpha-olefin moomer, said copolymer comprising  intramolecularly heterogeneous copolymer  chains  containing at least one crystallizable  segment of methylene units and   at   least   one  low  crystallinity ethylene-alpha-olefin  copolymer  segment, wherein  said  at least one crystallizable segment   comprises   at  least  about  10 weight percent  of  said  copolymer chain and  contains  at  least  about  57 weight percent   ethylene,   wherein   said   low crystallinity    segment    contains not greater   than  about  53  weight  percent ethylene,  and  wherein said copolymer has a     molecular     weight    distribution characterized  by  at least one of a ratio of  MW/Mn  of  less  than  2  and  a ratio of   Mz/Mw   of   less   than   1.8,   and wherein   at  least  two  portions  of  an individual  intramolecularly heterogeneous chain,  each portion comprising at least 5 weight  percent  of  said chain, differ in composition  from  one another by at least 7 weight  percent  ethylene, grafted with (b)  ethylenically  unsaturated carboxylic acid  material  having  1  to 2 carboxylic acid groups or anhydride group; and (ii)  at least one of (a) polyamine  having  at  least  two reactive amino  groups  selected from primary amino groups,   secondary   amino   groups,  and mixtures thereof, (b) polyol, (c) polyol,   and  about  C50  to  about  C400 hydrocarbyl  substituted  carboxylic  acid component  containing  1  to  2 carboxylic acid groups or anhydride group, and (d) polyamine  having  at  least  two reactive amino  groups  selected from primary amino groups,secondary    amino    groups,   and mixtures   thereof,   and   about  C50  to about    C400    hydrocarbyl   substituted carboxylic  acid component containing 1 to 2  carboxylic  acid  groups  or  anhydride group.
Patent CA-2017039-A1 (CA)
Title: Gel filtration of heat treated factor viii
Inventor: GOELKER CHRISTIAN
IPC: C07K1/34
Filed: 1990-05-17
Abstract: Highly purified antihemophilic factor is produced by a process comprising a PEG precipitation step, a gel filtration step and a heat treating virus inactivation step. Al(OH)3 adsorption and PEG precipitation carried out at room temperature allow processing to proceed directly to a gel filtration step.
Patent CA-2017065-A1 (CA)
Title: Heterocyclic compounds
Inventor: ROBERTS DAVID A
IPC: A61P9/12
Filed: 1990-05-17
Abstract: ABSTRACT               HETEROCYCLIC COMPOUNDS          The invention concerns novel heterocyclic compounds of the formula I as defined hereinafter (and their physiologically acceptable salts), together with pharmaceutical compositions containing them.  The heterocyclic compounds antagonise the actions of angiotensin II and are of value in treating diseases or medical conditions such as hypertension and congestive heart failure in warm-blooded animals. The invention further includes processes for the manufacture of the novel compounds and their use in medical treatment.
Patent CA-2017337-A1 (CA)
Title: Selectable mechanical and electronic pattern generating aperture module
Inventor: RICHARDSON BRIAN E
IPC: F21V9/40
Filed: 1990-05-23
Abstract: Abstract of the Disclosure A lighting system aperture mechanism formed by a movable carriage including a frame with openings for mechanically formed or electronic pattern apertures. The frame is moved to position a selected opening around a beam of light and the pattern aperture disposed within the selected opening may be rotated as desired to produce special effect patterns in the beam of light.
Patent CA-2017590-A1 (CA)
Title: Polymerization catalyst, process, and improvement
Inventor: PETTIJOHN TED M
IPC: C08L3/00
Filed: 1990-05-25
Abstract: Abstract of the Disclosure A process  is  disclosed  for preparing  a polymer/starch composite.  The process involves forming the polymer in the presence of starch,  an  organometallic  cocatalyst,  and a  particulate  olefin polymerization catalyst.   Also  there is disclosed a process  for improving the activity of a particulate olefin polymerization catalyst by  the  employment  of  a  suitable  amount  of  starch during  the polymerization.
Patent CA-2018191-A1 (CA)
Title: Remote sensing gas analyzer
Inventor: SANDRIDGE ROBERT L
IPC: G01N21/35
Filed: 1990-06-04
Abstract: Mo3216 REMOTE SENSING GAS ANALYZER  ABSTRACT OF THE DISCLOSURE A method and apparatus are described for monitoring an area or areas for the presence of gaseous materials, particularly pollutants, by collecting and analyzing infrared radiation present in the selected area, wherein the apparatus contains a computer controlled platform which positions a reflective surface in azimuth and elevation to direct said radiation into an interferometer for analysis.  The results of the spectrometric analyses are made available in a form understandable to the person or device monitoring the area for the presence of specified materials.  The results of the spectrometric analysis may, for example, be displayed on a video unit, printed or used to sound an alarm.            Mo3216
Patent CA-2018655-A1 (CA)
Inventor: NASH PHILLIP T
IPC: H01M50/247
Filed: 1990-06-11
Abstract: EXTERNALLY RECHARGEABLE BATTERY PACK FOR A COMPUTER    ABSTRACT OF THE DISCLOSURE         A rechargeable battery pack for a portable computer or other battery-powered device permits recharging of the battery while it is in the computer, or removal of the entire battery pack and recharging of the battery external to the computer by connecting an AC-DC converter directly to the battery pack.  This permits removal of a battery pack and replacement with a charged battery pack, so that the portable computer is not occupied with battery charging and can be taken into the field while another battery pack is being charged.  In the battery pack of the invention a DC power jack is located on the battery pack, identical to the DC jack on the exterior of the computer.
Patent CA-2019170-A1 (CA)
Title: Compact food package display refrigerator
Inventor: MILES MILTON C
IPC: A47F3/04
Filed: 1990-06-18
Abstract: COMPACT FOOD PACKAGE DISPLAY REFRIGERATOR                Abstract of the Disclosure A compact retail display refrigerator for displaying refrigerated  food  packages  maintained  at  super  chilled temperatures comprises a small cabinet with a refrigerated upper  compartment  containing  a  row  array  of  package guideways  formed  of  a  plurality  of  vertically  extending guide pins upstanding from a perforated base support plate.          Self acting spring loaded lift devices mounted within the guideways support stacks of food packages therein and urge them  upwardly  step-by-step  to  automatically  locate  the existing topmost package in each stack at a predetermined selection level.  Refrigerating mechanism located within a lower compartment of the cabinet includes a pair of cooling coils having alternately operating cooling and defrosting cycles and mounted in a bottom cooling chamber portion of the cabinet, and an electric fan forces the cooled air from the cooling chamber upwardly through a vertical duct at the back of the cabinet and having a forwardly directed side outlet opening at its top end for directing a stream of the chilled air forwardly across the top of the row array of package stacks and downwardly therebetween and through the perforated base support plate back into the cooling chamber.
Patent CA-2019215-A1 (CA)
Title: Recombinant avipoxvirus
Inventor: YANAGIDA NOBORU
IPC: A61K39/275
Filed: 1990-06-18
Abstract: ABSTRACT OF THE DISCLOSURE        A recombinant Avipoxvirus having inserted all or a part of cDNA coding for Newcastle disease virus-derived fused protein in a genome region non-essential to proliferation of Avipoxvirus and a vaccine for fowl comprising the recombinant Avipoxvirus.
Patent CA-2019381-A1 (CA)
Title: Polymeric electrolyte-hydrogen peroxide adducts
Inventor: MOSCHNER KARL
IPC: C11D3/37
Filed: 1990-06-20
Abstract: ABSTRACT            A solid powdered peroxyhydrate is provided which is an adduct of hydrogen peroxide and a polymeric electrolyte, said polymeric electrolyte having the formula:                              (I) wherein Y is selected from CO2-M+ and C6H4SO3-M+;           X and Z are independently selected from H, OCH3, CO2R8 and Y; R1 through R7 is independently selected form H and C1-C3 alkyl; R8 is C1-C3 alkyl; m and n are the same or different integers ranging from o to 20,000; and m+n is at least 3.
Patent CA-2020241-A1 (CA)
Title: Spray encapsulation of photovoltaic modules
Inventor: MARSHALL JACK
IPC: H01L31/048
Filed: 1990-06-29
Abstract: Abstract of the Disclosure A method for encapsulating a photovoltaic module and an encapsulated photovoltaic module.  The photovoltaic module include  a superstrate and one or more photovoltaic cells dis-posed on the superstrate.  A barrier coating is applied to the exposed side of the photovoltaic module.  The barrier coating is a mixture of a two component fluorinated polyurethane with 3-glycidoxy propyltrimethoxy silane.  The photovoltaic module may also include an isolation scribe located around the per-imeter of the exposed surface of the module.
Patent CA-2021323-A1 (CA)
Title: Measuring device of the rms value of a signal, notably for current measurement in a solid-state trip device
Inventor: DIDIER FRAISSE
IPC: G01R19/02
Filed: 1990-07-17
Abstract: ABSTRACT            MEASURING DEVICE OF THE RMS VALUE OF A SIGNAL, NOTABLY FOR          CURRENT MEASUREMENT IN A SOLID-STATE TRIP DEVICE     The measuring device of the rms value of a signal (I) comprises, in series, a full-wave rectifier (10), a low-pass filter (12), for example of the RC type, and a peak detector (14). The output signal (V4) of the device is representative of the rms value of the input signal,  the cut-off frequency of the filter corresponding to an angular frequency .omega. c) comprised between 4 .pi.f/6 and4.pi.f/5.33, f being the fundamental frequency of the input signal of the device.            Refer to figure 3.
Patent CA-2022611-A1 (CA)
Title: Optical resolution method for 3s-(3-carboxybenzyl)-6-(5-fluoro-2-benzothiazolyl)methoxy-4s-chromanol
Inventor: FRIEDMANN ROBERT C
IPC: A61P9/10
Filed: 1990-08-02
Abstract: Preparative method for 3R-(3-carboxybenzyl)-6-(5-fluoro-2-benzothiazolyl)methoxy-4R-chromanol via its salt with quinine.  The chromanol has the formula:                 (see fig. I) and  is inhibitor of 5-lipoxgenase and antagonist of leukotriene receptors and is useful in the prevention or treatment of asthma, arthritis, psoriasis, ulcers, myocardinal infarction and related diseases.
Patent CA-2023172-A1 (CA)
Title: Method to manufacture double-poly capacitors
Inventor: CORDEAU FRANCOIS L
IPC: H01L21/70
Filed: 1990-08-13
Abstract: ABSTRACT            A method a manufacturing integrated circuits including transistors, capacitors, and resistors, comprises the steps of forming a first poly layer, which is heavily doped; forming a dielectric layer over the first poly layer; forming a second poly layer over the dielectric layer, the second poly layer being lightly doped; and subsequently further doping the second poly layer at least in capacitor regions while masking the second poly layer in resistor regions so as to heavily dope the second poly layer in the capacitor regions and thereby improve capacitor linearity while substantially maintaining the resistivity of the lightly doped second poly layer in the resistor regions.  In this way capacitors having good linearity can be fabricated at the same time as small area resistors with good contact resistance.
Patent CA-2030229-A1 (CA)
IPC: H04B10/00
Filed: 1990-11-19
Abstract: ABSTRACT OF THE DISCLOSURE   In a wavelength division switching system having m1 inlet highways and m2 outlet highways, m1 splitters are coupled respectively to the inlet highways to split each multiplex signal into m2 x n output signals for coupling to respective inputs of m2 x n optical switches. Each optical switch is responsive to a switching control signal for coupling one of its inputs to one of m2 x n tunable wavelength filters capable of passing one of n different wavelengths, in response to a wavelength selecting signal, to one of m2 x n fixed wavelength converters which are organized into m2 groups. These wavelength converters provide conversion of the input signals so that the converted wavelength is unique in each of the m2 groups. An array of m2 combiners are respectively associated with the groups of the fixed wavelength converters and with the outlet highways. Each combiner has n inputs coupled respectively to the outputs of the fixed wavelength converters of the associated group to multiplex signals appearing at the n inputs thereof for coupling to the associated outlet highway.
Patent CA-2030595-A1 (CA)
Inventor: LEIGH HAROLD G
IPC: A61B10/00
Filed: 1990-11-23
Abstract: Soft tissue biopsy apparatus (10) for obtaining a tissue specimen.  An elongate housing (12) has an opening (20) at one end (14).  A hollow cannula (26) is positioned within the housing, is reciprocally movable therewithin, and one end (28) of the needle extends through the opening for insertion into tissue (T) from which a specimen is to be taken.  A needle (44) is positioned within the cannula, is reciprocally movable therewithin, and also has an end (46) extending through the opening for insertion into the tissue. This needle has a recess (50) adjacent its outer end in which a tissue specimen is captured.  The needle is connected to a slide (68) by which the needle is moved independently of the cannula.  A sleeve (110) installed over the housing is manually operable to move the slide to a selected and cocked position prior to insertion of the cannula/needle into the tissue.  Movement of the slide moves the second needle from a first position to a second position while the cannula remains stationary.  A release mechanism (114) operable by the user after insertion of the assembly into the tissue initially returns the needle to its first position and then moves the cannula from a first position to a second position. Movement of the cannula to its second position causes the end of the said cannula to cover the end of the needle to capture the tissue specimen within the recess.
Patent CA-2030947-A1 (CA)
Title: Process for the production of unfused protein in e. coli
Inventor: SCHMITZ ALBERT
IPC: C07K1/14
Filed: 1990-11-27
Abstract: 4-17838/=            Novel process for the production of unfused protein in E. coli Abstract of the Disclosure A process for the preparation of a recombinant IGF-II (rIGF-II) without a covalently attached foreign protein moiety and without N-terminal attached methionine or a deriva-tive of methionine or of a salt of said IGF-II, rIGF-II produced by said method, hybrid vectors comprising DNA encoding said rIGF-II, hosts transformed with said vectors, and a process for the isolation of said rIGF-II from the host cell and refolding it into a biologically active form.
Patent CA-2030999-A1 (CA)
Title: Process for producing 1,4-butanediol and tetrahydrofuran
Inventor: SUZUKI SADAKATSU
IPC: C07C29/149
Filed: 1990-11-28
Abstract: There is disclosed a process for the production of 1,4-butanediol and tetrahydrofuran by the catalytic hydrogenation in the gas phase of .gamma.-butyrolactone using a solid catalyst comprising copper and silicon, copper, chromium, and manganese or copper, chromium, manganese and barium.
Patent CA-2033958-A1 (CA)
Inventor: SEVERSON ERVIN L
IPC: B60R9/06
Filed: 1991-01-10
Abstract: Abstract of the Disclosure A heavy duty bicycle rack which has angle adjustable support legs, wherein adjustment of the support arms does not require simultaneous adjustment of the legs which support the carrier on the vehicle. The rack includes a heavy duty positive locking mecha-nism in which locking pin ends are biased into a lock-ing position, thereby selecting the angular position for the bicycle support arms relative to the legs. The locking pins are the ends of handles which can be pulled or withdrawn slightly to release the pins from the locking apertures to afford rotary movement of the support arms.  The handles with the locking pin ends are supported in clam shell or cup shaped shells, these shells having apertures which permit relative movement of the handles and pin ends.  Springs which bias the handles toward the locking position are con-fined in the cup shaped shells.  A bolt secures each pair of shells, one support arm and brackets on each of the support frames together in assembly. The rack is secured to the vehicle by means of straps which hook onto surfaces of the vehicle, such as the trunk lid, by means of reversible hooks.
Patent CA-2035665-A1 (CA)
Title: Airflow switch checking circuit
Inventor: WARREN JAMES S
IPC: F23N5/24
Filed: 1991-02-04
Abstract: ABSTRACT OF THE DISCLOSURE    A burner system has a control system which operates to prevent startup of the burner if an airflow switch indicates presence of combustion air flow before startup of a blower which provides the air flow. If the airflow switch later indicates absence of air flow before startup, then startup can proceed normally without operator intervention.  Power for startup is supplied through the normally closed contacts of a safety relay.  The winding of the safety relay receives power through the airflow switch. When the airflow switch is closed the safety relay winding is energized, opening the normally closed safety relay contacts and thereby blocking burner system startup, but only until the airflow switch opens.
Patent CA-2039590-A1 (CA)
Inventor: BOAZ PREMAKARAN T
IPC: C09D11/00
Filed: 1991-04-02
Abstract: Indicia is permanently affixed to a glass article utilizing a low viscosity silver nitrate-containing thermal diffusion ink composition which is applied in a predetermined pattern to the surface of the glass article by a non-contact ink jet printer.  Subsequently, the glass article having the ink thereon is heated to a temperature and for a time, sufficient to cause silver ions from the ink to diffuse into the glass article to color the glass and form indicia substantially conforming to the originally applied predetermined pattern.
Patent CA-2040801-A1 (CA)
Title: Suction accumulator with dirt trap and filter
Inventor: MORSE ROBERT L
IPC: F25B43/00
Filed: 1991-04-18
Abstract: ABSTRACT      A suction accumulator for the compressor of a refrigeration system including a disk-shaped dirt trap baffle member spaced from the wall of the vessel to form a gap through which liquid refrigerant flows from an active zone above the baffle to a quiet zone therebelow.  Within the quiet zone, liquid refriger-ant flows from a radially outer region to a radially inner region along a tortuous flow path.  A bleed-through orifice in a gaseous refrigerant flow conduit siphons liquid refrigerant from the radially inner region into the gaseous flow path.  Foreign particles suspended in the liquid refrigerant are isolated within the accumulator at various points along the flow path, particularly within the quiet zone.  A cup-shaped porous filter is disposed over the lower end of the conduit for the gaseous refrigerant to filter liquid refrigerant before it flows through the orifice.
Patent CA-2041304-A1 (CA)
Inventor: WIZANI WOLFGANG
IPC: C12N1/14
Filed: 1991-04-26
Abstract: Abstract Process for the preparation of xylanase by cultivation of a fungus in a nutrient medium which contains corn cobs, the use thereof, the fungus Thermomyces lanuginosus DSM 5826, an exo- and endo-cellulase-free xylanase prepare therewith, and the use thereof.
Patent CA-2045008-A1 (CA)
Title: Dipeptide derivatives
Inventor: TOYODA TATSUO
IPC: C07D413/06
Filed: 1991-06-19
Abstract: Abstract of the Disclosure.           A novel dipeptide derivative of the following formula (I), which compound is capable of inhibiting the enzymatic activity of renin and thereby depressing the renin-angiotensin system and lowering the blood pressure, is provided.                                            (I) wherein:         R1 is C1-C12 alkyl, C2-C6 alkenyl, C2-C6 alkynyl, C3-C10 cycloalkyl, aryl, or heterocyclic radical;         R2 is carbamoyl, aryl, 5- or 6-membered heterocyclic radical, C1-C12 alkyl-S-, C1-C12 alkyl-S-CH2-, or C3-C10 cycloalkyl-S-;         R3 is aryl or 5- or 6-membered heterocyclic radical;         R4 is R4'-SO2 or R4'-CO;         R4' is aryl, C1-C12 alkyl, C2-C6 alkenyl, C2-C6 alkynyl; C3-C10 cycloaklyl, or heterocyclic radical;          X is CH2, NH, O, or S; and Y is CO or NHSO2, wherein R1, R2, R3 and R4' each may be substituted with one to three substituents selected independently from a group consisting of hydroxy; halogen;     trifluoromethyl; -CN; heterocyclic radical; C1-C6 alkyl;          C3-C10 cycloalkyl; -O-C1-C6 alkyl; C1-C6 alkylenedioxy;          -CO-O-C1-C6 alkyl; -NHCO-C1-C6 alkyl; -S-C1-C6 alkyl;    -SO-C1-C6 alkyl; -SO2-C1-C6 alkyl; -NHSO2-C1-C6 alkyl;          -NR5R6; -O-CO-NR5R6; -CO-NR5R6; -O-C1-C6 alkyl NR5R6; R5 and R6 are independently hydrogen, formyl or C1-C6 alkyl, or R5 and R6, when taken together with the nitrogen to which they are attached, form a cyclic amino group, or an acid addition salt thereof.
Patent CA-2045090-A1 (CA)
Title: Motion signal processor
Inventor: LEE MYEONG-HWAN
IPC: H04N7/00
Filed: 1991-06-20
Abstract: There is disclosed a motion signal processor for use in a digital video signal processing system. The device spatially spreads the motion signal over a specific value by detecting the maximum value of an image window and then reconstructs the motion adaptively by using the spread motion signal according to the spatial motion area of the motion signal. A maximum value circuit 128 determines the maximum value of the spatial lowpass filtered frame difference signal so as to provide the motion signal with spatial  correlation.  The maximum value  is  compared with a predetermined reference level by a comparator 124. Then, an area detector 130 reconstructs the motion signal area of the signal output of the comparator to adaptively smooth the motion signal.          A K value generator generates motion factors by processing the area detection signal. Therefore, the motion signal is spread smoothly, based on the spatial correlation by virtue of the spatial spreading of the temporal motion signal of the frame difference signal and by means of the motion signal reconstructed by the spatial correlation of the motion signal.
Patent CA-2045570-A1 (CA)
Title: Improved composite wrench
Inventor: MONNET PIERRE
IPC: B25G1/10
Filed: 1990-12-21
Abstract: The disclosed improved wrench, made of plastic material, is comprised of a handle (2) presenting at each end a tightening head (3, 4) shaped like an open fork, an eye or a socket having a polygonal cross-section. Both clamping heads (3 ) and (4) are arranged in two distinct non parallel planes and are exented at the handle (2) by two coplanar portions (10) and (11) forming all or part of the handle itself.