baber/WOPTO huggingface dataset:
Patent CA-2016352-A1 (CA)
Title: Process for the selective and quantitative elimination of lactoglobulins from a starting material containing whey proteins
Inventor: THIBAULT PHILIPPE A
IPC: A23C21/00
Filed: 1990-05-09
Abstract: Process for the selective and quantitative elimination of lactoglobulins from a starting material containing whey proteins.     ABSTRACT The invention relates to a process for the selective and quantitative elimination of lactoglobulins from a starting material containing whey proteins, characterized in that the said starting material is brought into contact with a strongly basic type anion exchanger, the pH of the said starting material being between 4 and 6 when the ash content of the said starting material is between 0 and at most 1% by weight, and between 6 and 8 when the said ash content is between more than 1% and 3% by weight, so as to retain the lactoglobulins selectively and quantitatively on the anion exchanger, the  anion  exchanger  on  which the lactoglobulins are retained is separated from the remainder of the said starting material and the said remainder, free from lactoglobulins, is collected.     Application to the production of dietary milkbased foods for infants.
Patent CA-2016509-A1 (CA)
Title: Frequency conversion of optical radiation
Inventor: ANTHON DOUGLAS W
IPC: H01S3/102
Filed: 1990-05-10
Abstract: Abstract of the Disclosure An intracavity frequency-modified laser of improved amplitude stability is obtained by substantially eliminating spatial hole burning in the lasant material and maintaining the optical cavity of the laser at a temperature which results in substantially noise-free generation of output radiation.
Patent CA-2018087-A1 (CA)
Title: Dual action piston pump
Inventor: EVENSON RANDY
IPC: F04B9/115
Filed: 1990-06-01
Abstract: ABSTRACT OF THE DISCLOSURE    A dual action piston pump has a centrally disposed pump cylinder having a pump piston therein.  A transition section is secured to each end of said pump cylinder through which the media being pumped passes while being pumped from and to a four way valve.  A piston rod is connected to each side of said pump piston.   Each piston rod passes through the side wall of  the  transition  section  and  extends  into  a drive cylinder where it is connected to a drive piston.  The drive pistons are driven by a motive fluid which may be hydraulic fluid.   Each drive cylinder has a motive fluid connection adjacent to its distal and proximal ends so that both drive pistons can be driven in both directions.  As the pump piston moves in one direction media is being pumped out on one side while media is being drawn in on the opposite side.  The four way valve connects one side of the cylinder  to a suction intake and the other side of the cylinder to the discharge. The valve reverses these connections when the stroke of the pistons reverse.
Patent CA-2018288-A1 (CA)
Inventor: BOMMIER CHRISTOPHE
IPC: C25D17/00
Filed: 1990-06-05
Abstract: Apparatus for anodising aluminium alloy pistons employed in internal combustion engines. 
<??>This apparatus, where the said piston (1) is connected to the positive pole (3) of a source of direct current, is characterised in that its side surface is equipped, along a directrix situated near the head of a baffle (4) made of electrically insulating material whose surface, on the head side, is placed facing an electrode connected to the negative pole of the said source and pierced by at least one opening (8) permitting the passage of a controlled flow of anodising electrolyte (9) directed towards the head. 
<??>This device finds its application in the production, at a high rate and without recourse to the use of masks or of treatments other than the anodising, of barrier layers limited to the piston heads and which prevent the development of thermal stresses which are detrimental to the proper functioning of the said piston. 
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Patent CA-2019850-A1 (CA)
Inventor: KWON STEVEN S
IPC: A23L5/20
Filed: 1990-06-26
Abstract: A process for the debittering of an enzymatically hydrolysed protein containing bitter tasting polypeptides which comprises incubating a slurry of the enzymatically hydrolysed protein with a culture of a foodgrade microorganism which is capable of producing peptidases which hydrolyse the bitter tasting polypeptides to give debittered substances.
Patent CA-2020034-A1 (CA)
Title: Process for preparing polyurethane-backed carpet
Inventor: SKAGGS KENNETH W
IPC: B32B5/24
Filed: 1990-06-28
Abstract: ABSTRACT         Substrates having successive layers of a cel-lular polyurethane and a non-cellular polyurethane are prepared using certain siloxane-polyether block copoly-mers in the non-cellular polyurethane formulation.  The use of the block copolymer reduces or eliminates the formation of a bubble line at the interface of the poly-urethane layers, thereby improving physical and cosmetic properties of the carpet.   37,494-F
Patent CA-2021892-A1 (CA)
Title: Monitoring performance of a treating agent added to a body of water
Inventor: HOOTS JOHN E
IPC: G01N33/18
Filed: 1990-07-24
Abstract: Analyzing the level of a treating agent and/or stress metals in a body of water containing an inert transition metal tracer added to the water proportionally with the treating agent by determining the absorbance (first absorbance value) of a reagent dye added to water, said dye producing a second absorbance value when reacted at the same concentration with the tracer and stress metals in a measure of said body of water, and said dye producing a third absorbance value when reacted at the same concentration with only the transition metal contained in a measure of said body of watery determining the second and third absorbance values and resolving their differences to determine the concentration of the tracer and, separately, the concentration of said stress metals.
Patent CA-2022720-A1 (CA)
Inventor: GALBO VINCENT J
IPC: B60K15/04
Filed: 1990-08-03
Abstract: CLOSURE CAP          Abstract of the Disclosure A closure cap for an automotive fuel tank displays informational indicia on one or more flags which are caused to project from the periphery of the cap when the cap is twisted for removal from the tank filler tube.  The cap is constructed with two coaxially mounted plate members which are rotatably moveable relative each other by the act of twisting the cap off or on the filler cap.  The relative movement of the two plates is utilized to propel the flags back and forth between one position in which the flags are disposed substantially entirely within the periphery of the cap and another position in which the flags extend substantially beyond the periphery of the cap.
Patent CA-2023080-A1 (CA)
Title: Ventilating system for toilet
Inventor: DUPONT BERNARD
IPC: E03D9/05
Filed: 1990-08-10
Abstract: ABSTRACT OF THE DISCLOSURE             The  present  invention  relates  to  a ventilating system for toilet comprising a conduit formed for example in the seat and opening in the bowl through an orifice.   The orifice is situated in a precisely delimited front space of the toilet bowl. Upon installation of the ventilating system, a valve enables adjustment of the magnitude of the flow of foul air drawn from the bowl through the orifice and conduit.  Any space between the seat and the top rim surface is sealed and accordingly as foul air is evacuated, air is also drawn in the bowl through a front, primary air inlet defined in the central hole of the toilet seat between the thighs of the user and through a  rear,  secondary  inlet.    The  so  drawn secondary air passes under the posterior of the user and is therefore susceptible to cause discomfort.  In operation, the user selects the ratio of the flows of primary and secondary air so as to be comfortable but also to prevent escape of foul air in the bathroom. For that purpose, after the valve has been adjusted, the user can change the area of the above mentioned primary air inlet by varying the distance separating his thighs and/or by seating more or less in front of the  seat.   The  drawn  foul air can be  evacuated properly outside of the toilet room or treated through a filter and returned into the toilet room.
Patent CA-2024462-A1 (CA)
Title: Chromium-containing complex polymerisation catalyst
Inventor: DAWKINS GORDON M
IPC: C08F4/24
Filed: 1990-08-31
Abstract: Case 7343(2) ABSTRACT OF THE DISCLOSURE      CHROMIUM-CONTAINING COMPLEX POLYMERISATION CATALYST    The present invention relates to an olefin polymerization catalyst obtainable by depositing on a dry inorganic oxide support a monocuclear chromium complex to produce a catalyst precursor and thereafter by thermally activating the said catalyst precursor.  The catalyst is characterised in that the mononuclear chromium complex is representable by the general formula:      wherein:     -  the cyclopentadienyl ligand is substituted with 4 or 5 hydrocarbon groups containing 1 to 3 carbon atoms, -  x is an integer from 1 to 4, and -  L is either a four-or five-substituted cyclopentadienyl ligand, or (CO)3R in which R is H, methyl or ethyl. The catalyst is used for polymerizing olefins, particularly ethylene optionally with C3-C8 alpha-olefins.  It produces polyolefins having a relatively high molecular weight and a broad molecular weight distribution.
Patent CA-2024493-A1 (CA)
IPC: B03C3/06
Filed: 1990-08-31
Abstract: An improved electrostatic precipitator, and its pro-cess of operation is described which contains essentially vertical tubes acting as vertical collector electrodes with discharge wire electrodes suspended therein, wherein a novel nonfouling chain screen is employed as a distrib-utor for the upward flowing gas stream and collected dust is dropped onto and passed downwardly through the chain screen for discharge.
Patent CA-2025596-A1 (CA)
IPC: A61F5/02
Filed: 1990-09-18
Abstract: A walker brace for temporary tightening from a close fit position during the support surface contact phase of gait when the patient's weight is applied to the sole to stabilize the leg, ankle and foot from undesirable movement.  A leg support assembly of the brace has multiple straps connected to an arm for nesting the leg. A foot support assembly has multiple straps connected to a foot support shell for nesting the foot.  An arm is connected to the foot support shell and articulates relative to the arm at a controlled motion ankle hinge. A leg strap tightening mechanism includes a tightening rod and a cable for progressive and differential tightening of the straps to stabilize the leg.  A foot strap tightening mechanism includes a buckle loop and a cable for tightening of the instep strap to stabilize the foot.  The cables pass through foot support shell and a rocker bottom sole shell pivoted at the foot support shell.  A relative shortening of the cables occurs when the rocker bottom sole shell is pivoted upwardly relative to the foot support shell during the period of time that the patient's weight is applied to the sole.
Patent CA-2026044-A1 (CA)
Inventor: KATZ HOWARD G
IPC: D06M11/00
Filed: 1990-09-24
Abstract: Carpet coating compositions are disclosed which comprise 40 to 80 percent by weight filler and 20 to 60 percent by weight of a latex binder, the binder comprising an emulsion polymer of a)  40 to 80% by weight of a vinyl ester of an alkomoic acid, the acid having from 1 to 13 carbon atoms; b)  5 to 25% by weight of a copolymerizable comonomer having a Tg of at least 50°C; and; c)  10 to 30% ethylene.
Patent CA-2026115-A1 (CA)
Title: Portable pig vaccination equipment
Inventor: BRUN ANDRE
IPC: A61D1/02
Filed: 1990-09-25
Abstract: ABSTRACT         PORTABLE PIG VACCINATION EQUIPMENT           The portable pig vaccination equipment comprises a device for administrating dose streams of about 0.2 ml, which is connected to a vaccine composition feed having the corresponding concentration.
Patent CA-2029086-A1 (CA)
Title: Coating method
Inventor: KLUG DAVID M
IPC: A23L29/20
Filed: 1990-10-31
Abstract: A method of coating a frozen confectionery product containing calcium ions which comprises a) dipping the frozen confectionery product into a flowable aqueous medium containing an alkali metal alginate to form a coating thereon, and b) spraying the coated product with an aqueous solution of calcium salt.
Patent CA-2029210-A1 (CA)
Title: N-oxoazolylmethyloxiranes and fungicides and bioregulators containing them
Inventor: SEELE RAINER
IPC: A01N43/653
Filed: 1990-11-02
Abstract: O.Z. 0050/41221 ABSTRACT OF THE DISCLOSURE: N-Oxoazolylmethyloxiranes of the formula I                            I, where A and 8 are identical or different and each is alkyl, cycloalkyl, tetrahydropyranyl, benzyl, norbornyl, naphthyl, biphenyl or phenyl, these radicals being unsubstituted or substituted, and X is CH or N, and fungi-cides and bioregulators containing them.
Patent CA-2030056-A1 (CA)
Title: 5,11-dihydro-6h-dipyrido[3,2-b:2',3'-e][1,4]diazepines and their use in the prevention or treatment of hiv infection
Inventor: HARGRAVE KARL D
IPC: A61K31/5513
Filed: 1990-11-15
Abstract: Discloscd are nov 1 5,11-dihydro-6H dipyrido[3,2-b; 2',3'e][1,4] diazepines.   These are useful in the prevention or treatment of HIV infection.
Patent CA-2030903-A1 (CA)
Inventor: KESTER JOHN J
IPC: G02F1/361
Filed: 1990-11-26
Abstract: ABSTRACT       The present invention is directed to a novel epoxy polymeric composition resulting from reacting (A) at least one compound containing an average of more than one epoxide group per molecule with (B) at least one curing agent for component (A).  At least a portion of the curing agent (B) is at least a first curing agent compound which contains (a) an average of more than one active amine hydrogen atom per molecule and (b) an average of at least one aromatic ring which contains at least one pendant monovalent electron-withdrawing group. The present invention also includes a process for preparing the above polymeric materials.  The polymeric materials of the present invention also exhibit nonlinear optical capabilities when formed into an optically transparent medium with a noncentrosymmetric alignment of molecules.  The nonlinear optical materials of the present invention are useful in electrooptic devices for use in communications and data processing.   36,324-F     Nonlinear optical films produced from the polymeric material show a reduced tendency to reorient due to thermal motion.
Patent CA-2032519-A1 (CA)
Title: Avoiding latent errors in a logic network for majority select ion of binary signals
Inventor: HAULIN TORD L
IPC: H03K19/173
Filed: 1990-05-03
Abstract: A circuit and a method for avoiding latent errors in a logic network for majority selection of binary signals in a triplicated system. Errors which result from errors or faults in one of two or more parallel-connected transistors of one or more separate logic devices included in the logic network are avoided by repeatedly switching each of the separate logic devices in a manner such that transistors which were parallel-connected become series-connected, and vice versa. As a result, these devices will perform alternately logic operations which are the dual correspondence of one another, e.g. NAND- and NOR-operations with the aid of the same transistors in both instances. Thus, in practice, majority selection will be performed alternately with two mutually different logic networks, which are the dual correspondence of each other.
Patent CA-2035064-A1 (CA)
Title: Method of controlling silica deposition in aqueous systems
Inventor: SHERWOOD STEVEN P
IPC: C02F5/14
Filed: 1991-01-28
Abstract: A method for the inhibition of silica deposition on the internal surfaces of an aqueous system comprising adding to the aqueous system a phosphonate compound and a water soluble polymer having the structure:      wherein M is a water soluble cation. The aqueous systems in which the water soluble phosphonate and polymer are particularly effective on cooling water and boiler systems.
Patent CA-2035095-A1 (CA)
Title: Higher pentafluorosulfanyl-fluoroaliphatic carbonyl and sulfonyl fluorides, and derivatives
Inventor: HANSEN JOHN C
IPC: C09K23/00
Filed: 1991-01-28
Abstract: Abstract of the Disclosure Pentafluorosulfanyl fluoroaliphatic carbonyl and sulfonyl fluorides, derivatives of the acid fluorides and the preparation and use of the acid fluorides and derivatives.  The fluoroaliphatic moiety of said acid fluorides comprise at least three fully-fluorinated carbon atoms.  The derivatives of the acid fluorides are useful as surface-active agents and surface-treating agents.
Patent CA-2036663-A1 (CA)
IPC: G03G15/04
Filed: 1991-02-19
Abstract: ABSTRACT OF THE DISCLOSURE      Electrostatic image forming device according to the present invention is contacted with a surface of a photosensitive drum by way of a positioning member so that it may follow the photosensitive drum in any eccentric condition, and consequently, the position thereof relative to the photosensitive drum is maintained constant, and accordingly, a record picture of a high quality is obtained.  Further, since the relative positions of the electrostatic image forming device and the photosensitive drum are varied by adjustment of the positioning measure in response to opening and closing operation of an electrophotographic apparatus body, electrostatic image forming device having a short focal length can be used, and the overall size of the electrophotographic apparatus body can be reduced.
Patent CA-2036922-A1 (CA)
Title: Welding method
Inventor: ELLIOT THOMAS W
IPC: B23K9/18
Filed: 1991-02-22
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a method of welding pipe and pipe components which is particularly useful in welding of large diameter pipe for use in the distribution of natural gas.  The invention is also directed to the specific welds used to join such components.  The method uses the combination of a metal inert gas (MIG) process to initially form a root between the components, followed by a number of welds using a submerged arc welder to finish the weld.  This weld satisfies the various ASME requirements and the method is efficient and cost effective.
Patent CA-2038370-A1 (CA)
Title: Method for the production of specimen prints in individual colours or colour combinations in a printing machine
Inventor: HAUCK DIETER
IPC: B41F7/18
Filed: 1991-03-15
Abstract: Method  for  the  production  of  specimen  prints  in individual colours or colour combinations in a printing machine Abstract The aim of the present invention is the creation of a method for the automatic production of colour extracts, in which a preselected number of sheets in a desired colour combination are printed.            The aim is achieved by means of a control device in which at least one control program is storable. This control program is composed of individual program steps and  controls  the impression  throw-on/off  in  the individual  printing  units  of  the  printing  machine according  to  the  stored  program  steps.  As  an alternative  to  these  preset,   recallable  control programs,  any  print  volume  of  colour  combinations desired by the machine operator can be preselected.
Patent CA-2039669-A1 (CA)
Inventor: HONDA SHIRO
IPC: C08K7/18
Filed: 1991-04-03
Abstract: SEMICONDUCTOR DEVICE-ENCAPSULATING                 EPOXY RESIN COMPOSITION                 Abstract of the Disclosure Disclosed is a semiconductor device-encapsulating epoxy resin composition comprising (i) an epoxy resin (A)containing at least one of a bifunctional epoxy resin (a1) having a biphenyl skeleton and a bifunctional epoxy resin (a2) having a naphthalene skeleton, (ii) a curing agent (B), and (iii) a filler containing fused silica (C) having a specified kind and specified mean particle diameter.  This composition has an excellent heat resistance of solder, and further reliability after thermal cycles and reliability after solder-bath dipping.
Patent CA-2039968-A1 (CA)
Title: 2-substituted alkyl-3-carboxy carbapenems as antibiotics and a method of producing them
Inventor: ZIEGLER CARL B JR
IPC: A61K31/40
Filed: 1991-04-08
Abstract: 31,291 CARBAPENEMS AS ANTIBIOTICS AND A     METHOD OF PRODUCING THEM                               ABSTRACT                   The invention relates to new 2-substituted alkyl-3-carboxy carbapenems having the formula:       with R1, R2, R3, X and Y defined in the specification as antibiotics and beta lactamase inhibitors produced by a novel Michael addition-elimination reaction of a substituted allyl azetidinone in the reaction shown:       with Q defined in the specification.
Patent CA-2041418-A1 (CA)
Title: Method of protecting ceramic surfaces
Inventor: TOBIN ALBERT G
IPC: C04B41/90
Filed: 1991-04-29
Abstract: ABSTRACT OF THE DISCLOSURE In  summary,  the  preceding  description  of  the invention offers a method for bonding a ductile oxidation resistant metal layer to a ceramic surface to enhance the resistance of the ceramic to surface damage by thermal, mechanical, or chemical means.   This is accomplished by taking advantage of the chemical reactivity of certain metals  with  the  ceramic  and  by  grading  the  thermal expansion coefficients of these various metals so as to form intermediate layers of a multi-layer composite.  The intermediate  metallic  layers  are  metallurgically compatible with each other and an outer metal layer is chosen for its oxidation and corrosion resistance for an anticipated  environment.    Deposition  of  the  various layers forming the multi-layer composite is performed by conventional  coating  techniques  or  hot  pressing  of metallic  foils  and  is  followed by  a  suitable vacuum annealing process to cause partial interdiffusion of the metallic layers and bonding with the ceramic phase.
Patent CA-2041693-A1 (CA)
Title: Cable reinforced mounting system
Inventor: DREIMAN NELIK I
IPC: F16F15/067
Filed: 1991-05-02
Abstract: ABSTRACT The present invention is a cable reinforced mounting system.  Springs suspend a motor-compressor within a housing, and coaxial cables extend between the housing and the motor-compressor to dampen vibration and stabilize its position both vertically and horizontally. The cable ends have cable terminators for mounting the cable.  The cable terminators are formed by metal injection molding and engage mounting brackets of the housing and on the mounts of the motor-compressor unit.