baber/WOPTO huggingface dataset:
Patent CA-2010045-A1 (CA)
Title: Handbrush and method of manufacture thereof
Inventor: VAN NIEKERK GERHARD A
IPC: A46B1/00
Filed: 1990-02-14
Abstract: ABSTRACT            A handbrush and method for the manufacture thereof,  are disclosed,   The  handbrush comprises a  head  having a plurality of bristles thereon and handle extending  from the  head,  the head, the bristles and  the  handle  all being integrally moulded from a polymeric compound  such as rubber.  A rigid strengthening member may be embedded in  the head and the handle and may be bent to impart  a desired  shape  to the brush, e.g. for  maintaining  the handle at a desired angle to the head.  The brush may be provided  with a substantially longitudinally  extending scraper blade which may also be integrally moulded  with the  head, the bristles and the handle.  In addition,  a groove may be provided in the head of the handbrush for receiving  and  holding  an edge of a  steel  blade  for removing  ice from the windscreens of motor vehicles  or the like.
Patent CA-2011074-A1 (CA)
Title: High surface hardness transparent resin and polymerizable monomer
Inventor: SUZUKI TOSHIYUKI
IPC: C07D251/34
Filed: 1990-02-28
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention relates to a transparent resin which has a high surface hardness and which is excellent in scratch resistance, heat resistance and chemical resistance, a glazing material, a protective cover for display devices, an optical lens and a hard coat material comprising the above-mentioned resin, and a novel polymerizable monomer represented by the formula (I) useful as a raw material for the high surface hardness transparent resin.                                   (I) wherein R is an aliphatic residue having or not having an oxygen atom,  an alicyclic ring, a heterocyclic ring or an aromatic ring, or an alicyclic residue, ? is 0 or 1, each of i and j is an integer of 1 or more, and when ?=0, i=j=1, when ?=1, (i+j) is 4 or less, when j=1, X is oxygen or sulfur, when j?2, all X's are oxygen or sulfur, or one X is oxygen and the other X's are sulfur, or one X is sulfur and the other X's are oxygen.   The high surface hardness transparent resin comprises a crosslinked polymer prepared by copolymerizing a monomer (A) represented by the formula (I) as above and a monomer (B) containing one or more functional groups of at least one kind selected from the group consisting of CH2=CH-C(O)-O-, CH2=C(CH3)-C(O)-O- and CH2=CH .
Patent CA-2011327-A1 (CA)
Title: Renin-inhibitory di-, tri-, and tetrapeptides
Inventor: GREENLEE WILLIAM J
IPC: C07K14/81
Filed: 1990-03-02
Abstract: TITLE OF THE INVENTION RENIN-INHIBITORY DI-, TRI-, AND TETRAPEPTIDES            ABSTRACT OF THE DISCLOSURE         Renin-inhibitory di-, tri-, and tetrapeptides of the formula I:                   A-B-E-G-T-J in which A is heterocyclic, substituted heterocyclic etc; B is     -N(A1)CH[(CH2)2R3]CO-E is     absent or is -N(A2)CH[(CH2)2R4]CO-; G is     etc and 004/FSC6                - i -               17757 J is     -Y-(CH2)[CH(R5)]y-(CH2)z-R10 and pharmaceutically acceptable salts thereof are disclosed.  These compounds inhibit renin and are useful for treating various forms of renin-associated hypertension, hyperaldosteronism and congestive heart failure; compositions containing these renin-inhibitory peptides, optionally with other antihypertensive agents; and methods of treating hypertension, hyperaldosteronism or congestive heart failure or of establishing renin as a causative factor in these problems which employ these novel peptites.
Patent CA-2013770-A1 (CA)
Title: Use of liposomes for the delivery of therapeutic agents to wounds, cuts and abrasions
Inventor: SHAW JACK M
IPC: A61K9/127
Filed: 1990-04-03
Abstract: ABSTRACT           Methods for delivering therapeutic agents to wounds in liposomes which preferentially bind to the wounds are disclosed. Methods for delivering therapeutic agents in liposomes to wounds on the ocular surface of the eye are included.
Patent CA-2015006-A1 (CA)
Title: Fast sample and hold circuit configuration
Inventor: ASTEGHER BERTHOLD
IPC: H03F1/30
Filed: 1990-04-20
Abstract: Abstract of the Disclosure:     A circuit configuration includes a symmetrically constructed sample and hold amplifier.  A first switchable level shifter has an input in the form of a first signal input terminal for receiving a given signal, and an output being connected to the sample and hold amplifier for supplying a differential output signal.  A second switchable level shifter has an input in the form of a second signal input terminal for receiving a signal complementary to the given signal, and an output being connected to the sample and hold amplifier for supplying a differential output signal.  The input and output signals of each of the switchable level shifters having a different constant direct voltage difference as a function of the switching state of the level shifters.
Patent CA-2015341-A1 (CA)
Title: Method and apparatus for the treatment of molten metals
Inventor: SCHIFFARTH JOSEF
IPC: C21C5/46
Filed: 1990-04-24
Abstract: ABSTRACT                 METHOD AND APPARATUS FOR THE TREATMENT OF MOLTEN METALS          Apparatus for the treatment of molten metal with a particulate treatment agent and a gas comprises a vessel,  a rotary device for dispersing particulate treatment agent and a gas in molten metal contained in the vessel  and means  for  supplying the  particulate treatment agent and gas to the rotary device.   The rotary  device  comprises  a  hollow  shaft  having  a discharge end and a hollow rotor attached to the shaft, the rotor having a plurality of vanes each extending from the shaft or from a location adjacent the shaft towards the periphery of the rotor so that the hollow interior of the rotor is divided into a plurality of compartments, each compartment having an inlet adjacent the shaft and an outlet adjacent the periphery of the rotor,  and  the  rotor  has  means for  passing  the particulate treatment agent and gas from the discharge end  of  the  hollow  shaft  of  the  device  to  the compartments.  In a preferred embodiment the discharge end of the shaft opens into a manifold in the rotor and the inlets for the compartments are in the wall of the manifold.  For relatively fine particles the means for supplying the particulate treatment agent and gas to the rotary device may be a hopper  fitted with gas injection  nozzles,  or an apparatus  in  which  the particulate treatment agent is fluidised by the gas to produce a dispersion and which is connected by a pipe to the bore of the shaft of the rotary device.   For larger   particles   the   means   for   supplying  the particulate  treatment  agent  and  gas  to  the  rotary device may be a hopper having a sealed top having a closable inlet for the particles of treatment agent, and an aperture in its base communicating with a tube located inside the bore of the shaft of the rotary device, the sidewall of the hopper adjacent the base having at least one series of apertures spaced apart around its perimeter, each aperture having projecting through  it  to  the  inside  of  the  hopper  a  sliding member,  and the  tube  having  one  or more  apertures therein for the introduction of gas.
Patent CA-2017158-A1 (CA)
IPC: F41G7/32
Filed: 1990-05-18
Abstract: ROTATING DRUM FILAMENT DISPENSER               ABSTRACT OF THE DISCLOSURE A filament (18) dispenser for on board use in an airborne vehicle (10) in which a cylindrical bobbin (20) is rotatively mounted within the vehicle (10) with the axis of rotation normal to the vehicle longitudinal axis.  A brake (48) prevents the bobbin (20) from exceeding predetermined rotational speed limits that would cause filament lift-off.  A protective covering (44) is placed on a prescribed filament end portion length as reinforcement against startup tension damage to the filament (18).
Patent CA-2017523-A1 (CA)
IPC: F02D41/18
Filed: 1990-05-25
Abstract: METHOD AND MEANS FOR DETERMINING AIR MASS IN   A CRANKCASE SCAVENGED TWO-STROKE ENGINE          Abstract of the Disclosure A method and means are described for determining the mass of air available for combustion within a cylinder of a crankcase scavenged two-cycle engine, without the use of a mass-air flow sensor This is achieved by estimating the mass of air under compression within a crankcase chamber, prior to its transfer to a cylinder combustion chamber during the engine operating cycle.   The estimate for air mass is based upon the polytropic behavior of a portion of the crankcase compression process, and the pressure, volume and temperature of the air at two predetermined engine rotational positions during the polytropic phase of compression.   The volume of the air within the crankcase chamber is determined as a function of engine rotational angle, with crankcase air temperature being derived as a function of intake air temperature.   Air pressure during the polytropic phase of compression is sensed with a pressure sensor disposed within the crankcase chamber.   The estimate for air mass is corrected to account for air leakage and imperfect transference of the air between the crankcase and combustion chambers.
Patent CA-2017647-A1 (CA)
Inventor: VIAUD JEAN
IPC: A01F15/08
Filed: 1990-05-28
Abstract: MACHINE FOR FORMING CYLINDRICAL BALES OF CROP          Abstract of the Disclosure A baling machine includes a variable volume baling chamber with which there is associated a hydraulic tension cylinder containing fluid in its rod end for resisting expansion of the baling chamber.  A high pressure relief valve is connected in circuit between the opposite ends of the cylinder for permitting fluid transfer between the ends in accordance with the pressure setting of the valve.  A low pressure relief valve is connected in circuit between the opposite ends of the tension cylinder so as to be in parallel with the high pressure relief valve.  A mode select valve is located in circuit between the tension cylinder and the low pressure relief valve and is shiftable between a dense bale position wherein it prevents flow from the rod end of the tension cylinder to the low pressure relief valve whereby fluid exchange between the opposite ends of the tension cylinder is by way of the high pressure relief valve, and a soft bale position wherein it allows fluid to flow freely from the rod end of the tension cylinder to the low pressure relief valve whereby fluid exchange between the opposite ends of the tension cylinder is by way of the low pressure relief valve.
Patent CA-2019159-A1 (CA)
Inventor: STACHOWIAK ROBERT W
IPC: C08F2/04
Filed: 1990-06-18
Abstract: Synthetic elastomers are typically made commercially by employing emulsion polymerization or solution polymerization techniques. In such solution polymerization techniques, it is desirable to operate at the highest solids content which is practical. As a general rule, it is not practical to prepare such rubbers by solution polymerization at solids contents of higher than about 20 percent. However, the subject invention reveals a technique for preparing such rubbers by high solids solution polymerization at extremely high solids contents. This technique offers substantial advantages associated with eliminating large quantities of organic solvents. The subject invention more specifically relates to a process for the synthesis of polydiene rubber by continuous high solids polymerization which comprises: (1) continuously charging at least one diene monomer, at least one organolithium compound, and from about 4 to about 50 phm of at least one organic solvent into a reaction zone; (2) allowing the monomers to polymerize to a conversion of at least about 90% while utilizing conditions under which there is sufficient evaporative cooling in said reaction zone to maintain a temperature within the range of about 10°C to about 150°C; and (3) continuously withdrawing said polydiene rubber from the reaction zone.
Patent CA-2025237-A1 (CA)
Title: Acetabulum reamer
Inventor: SCHELHAS KLAUS-DIETER
IPC: A61M1/00
Filed: 1990-01-13
Abstract: The present invention relates to an acetabulum cutter that serves in particular to shape the acetabulum of the human pelvic bone preparatory to the implantation of an artificial hip joint socket.  The proposed acetabulum cutter comprises a cutting head attached to a shaft and one or more cutting ridges which, being fitted with cutting elements, wind helically around the shaft axis.  The outer face of the cutting ridge is bounded by a section of a spherical surface, whose axis of rotation aligns with the shaft axis.
Patent CA-2025390-A1 (CA)
Title: Yoghurt flavor and process for the manufacturing of a yoghurt flavor
Inventor: VAN DER SCHAFT PETER H
IPC: A23L27/24
Filed: 1990-09-14
Abstract: Yoghurt flavor and process for the manufacturing of a yoghurt flavor.                         ABSTRACT            The invention concerns a yoghurt flavor comprising the dried yoghurt fermentation product of cheese whey medium or of a fraction thereof as well as a process for the preparation of a yoghurt flavor, comprising the fermentation of a whey medium comprising water and whey solids, with a conventional bacterial yoghurt starter culture.
Patent CA-2025998-A1 (CA)
Title: Boot remover
Inventor: LEVY SOL
IPC: A47G25/80
Filed: 1990-09-24
Abstract: ABSTRACT OF THE DISCLOSURE      A boot remover is provided and consists of a structure for annularly positioning a platform on a floor with its V-shaped forked end elevated therefrom.  When a person steps on the platform it will be retained in a stationary position.  The V-shaped forked end will hold a boot heel securely to allow the person to withdraw their foot from the boot.
Patent CA-2027313-A1 (CA)
Title: Catheter adapter and retainer
Inventor: BRYANT PETER L
IPC: A61M25/00
Filed: 1990-10-11
Abstract: ABSTRACT OF THE INVENTION     An adapter and retainer for field assembly to the proximal end of a catheter in the form of a plastic clip having a length of flexible tubing mounted thereon into which the end of the catheter is inserted after which two jaws of the clip are locked together to sealingly compress the flexible tubing about the catheter, the catheter also being wrapped one or more times about reel formations provided on the_clip and then snapped into retention grooves provided on the clip whereby to absorb any force applied to the catheter which would otherwise tend to separate the catheter from the clip.
Patent CA-2030187-A1 (CA)
Title: Preparation of monosubstituted dithiooxamide compounds
Inventor: OLSON DAVID B
IPC: C08G79/00
Filed: 1990-11-16
Abstract: Abstract of the Disclosure This invention relates to the synthesis of N-(monosubstituted)dithiooxamides by the transamination of dithiooxamide.  Preferred methods, according to the present invention, take advantage of the discovery that yields of N-(monosubstituted)dithiooxamides can be improved in the Wallach Reaction by:  controlling the temperature of the reaction mixture; optimizing the initial concentration of the reactants; adding an effective amount of acid in the quenching or processing procedure; and/or, optionally, adding an effective amount of certain nitrogen bases to the reaction mixture.
Patent CA-2030494-A1 (CA)
Title: Differential pressure, countergravity casting of a melt with a fugative alloyant
Inventor: SABRAW RICHARD J
IPC: B22D18/06
Filed: 1990-11-21
Abstract: DIFFERENTIAL PRESSURE, COUNTERGRAVITY CASTING OF A MELT WITH A FUGATIVE ALLOYANT     Abstract Of The Disclosure Apparatus and method for the differential pressure, countergravity casting of a melt of molten metal, such as nodular iron, containing a fugative alloyant, such as a magnesium nodularizing agent, susceptible to rapid loss from the melt over time wherein a source of the alloyant is so disposed on a lower portion of each mold as to contact the melt and replenish the alloyant content thereof when the lower mold portion of each mold is immerssd in the melt for casting.  An effective level of alloyant is thereby maintained in the melt throughout the casting of a plurality of molds in succession from the melt.
Patent CA-2030588-A1 (CA)
Title: Apparatus for controlled delivery of particulate material
Inventor: DE SILVA K NIMALASIRI
IPC: G01N1/00
Filed: 1990-11-23
Abstract: TITLE Apparatus for Controlled Delivery of Particulate Material INVENTORS K. Nimalasiri de Silva Roger Guevremont ABSTRACT OF THE DISCLOSURE An apparatus that provides controlled volumetric delivery of particulate material, and particularly for delivery of a particulate sample for analysis, comprising; an elongated container for receiving particulate material to be delivered; a tubular member having a receiving inlet for insertion into the container, and an outlet; fluidizing means comprising means for effecting relative motion of the tubular member relative to the container at a rate sufficient to fluidize a surface portion of particulate material within the container when the tubular member is inserted therein; inlet means for receiving a transporting gas for transporting fluidized particulate material from the container; and traversing means for traversing the container relative to thetubular member along a common longitudinal axis at a predetermined rate selected to obtain the desired volumetric sample delivery rate.
Patent CA-2030796-A1 (CA)
Title: Process for preparing disulfones
Inventor: ARMAND MICHEL
IPC: C07C315/04
Filed: 1990-04-05
Abstract: The subject matter of the invention is a process of synthesis of sulphonylmethanes and their derivatives corresponding to the formula M[(RSO2)2CH]m (I), in which M represents H, an alkaline or alkaline-earth metal or (a), R' and R are monovalent organic radicals and m represents the valency of M. The process is characterised by the fact that an ionic carbide is made to react with a sulphonyl halide, the product of which is hydrolysed; before or after hydrolysis, a compound MyYm is added to the reactive medium, Y representing an anion capable of forming, with the cation of the ionic carbide, a compound which can be separated from the compound (I), and y representing the valency of Y.
Patent CA-2033172-A1 (CA)
Inventor: MERALDI JEAN-PAUL
IPC: D01F6/60
Filed: 1990-06-27
Abstract: PCT No. PCT/CH90/00155 Sec. 371 Date Feb. 26, 1991 Sec. 102(e) Date Feb. 26, 1991 PCT Filed Jun. 27, 1990 PCT Pub. No. WO91/00381 PCT Pub. Date Jan. 10, 1991.An aramid monofilament (20), characterized by the fact that it has the following relationships: 1.7</=Ti</=260; 40</=D</=480; T>/=170-D/3; Mi>/=2000, Ti being the linear density in tex, D being the diameter in  mu m, T being the tenacity in cN/tex, and Mi being the initial modulus in cN/tex for this monofilament. A method of obtaining said monofilament (20) in which a solution (2) of aromatic polyamide(s) is extruded in a spinneret (9), the jet is drawn into a non-coagulating layer of fluid (13), and the drawn liquid vein is introduced into a coagulating medium (19). Assemblies of such monofilaments. Articles reinforced by these monofilaments or these assemblies, such articles being for instance tires.
Patent CA-2033842-A1 (CA)
Inventor: MCLENNAN WILLIAM R
IPC: F16L17/04
Filed: 1991-01-09
Abstract: A segmented pipe coupling provides a housing for a butterfly valve, and preferably is provided with oppositely angled end faces of saw tooth configuration at the respective ends of the coupling segments, thus allowing the inclined end faces to emerge at the axial end faces of the coupling at or closely adjacent to the X-Z plane of an axially long coupling. A slow motion rotary drive for the butterfly valve also is provided.
Patent CA-2033876-A1 (CA)
Inventor: ISHII KAZUNORI
IPC: H05B6/66
Filed: 1991-01-09
Abstract: ABSTRACT OF THE DISCLOSURE     A high frequency heating apparatus includes a casing, an inverter enclosed in the casing, a magnetron supplied with high frequency voltage from the inverter, and three attachment plugs each connected to one of external power supplies of different output voltages.  The attachment plugs are connected to the inverter input side via respective power supply selecting switches. The apparatus further includes three display panels one of which is selectively attached to the apparatus.   Each display panel has an indicia indicative of one of the power supply voltages used and two projections selectively turning off the other two power supply switches when attached to the apparatus.
Patent CA-2034047-A1 (CA)
IPC: G01R19/00
Filed: 1991-01-11
Abstract: Abstract of the Disclosure A transimpedance circuit for generating an output voltage replica of an alternating current input has its accuracy improved by the use of a current comparator, the ratio windings of the comparator respectively carrying a current proportional to the input current and a current proportional to the output voltage.  A further winding of the comparator detects any ampere-turns imbalance in the ratio windings, and, as a result, generates a correction signal proportional to such imbalance.  This correction signal is then employed to correct the output voltage.
Patent CA-2034788-A1 (CA)
Title: Element having improved adhesion of auxiliary layers to film supports containing antistatic layers
Inventor: BEISSWENGER RUDOLF W
IPC: G03C1/85
Filed: 1991-01-23
Abstract: TITLE ELEMENT HAVING IMPROVED ADHESION OF AUXILIARY LAYERS TO FILM SUPPORTS CONTAINING ANTISTATIC LAYERS                        ABSTRACT      A film support having an auxiliary layer coated over an antistatic layer coated on one side thereof is described.  This element, which is particularly useful for the application of subsequently applied photosensitive layers on side opposite said auxiliary layer, comprises gelatin, a crosslinking agent, optionally a conductive polymer and an adhesion promoting amount of an adhesion agent, said adhesion agent selected from the group consisting of: compounds containing at least one -NH2 group and compounds containing at least two -NH groups, wherein said adhesion agent is sufficiently soluble in water that said adhesion promoting amount of adhesion agent may be dissolved in the dispersion used to coat said auxiliary layer, with the proviso that said adhesion agent is not malonamide.  Preferred adhesion agents are urea, thiourea and 2-imidazolidone.  Improved adhesion of the auxiliary layer to the antistatic layer is achieved.
Patent CA-2035702-A1 (CA)
Inventor: VIJAY MOHAN
IPC: B24C5/08
Filed: 1991-02-05
Abstract: There  is  described  an  improved  ultrasonic  nozzle including a nozzle body having a fluid flow channel formed axially therethrough with an inlet at an upstream end of the channel for receiving a pressurized fluid and an orifice at the downstream end of the body for discharging the pressurized fluid towards a surface to be eroded, a transformer axially aligned within the flow channel to form, in cooperation with the flow channel, an annulus between the two for the flow of the  pressurized  fluid,  a  vibrator  for  ultrasonically oscillating the transformer to pulse the pressurized fluid prior to its discharge through the orifice.  The flow channel and transformer taper conformably axially inwardly in the direction of flow of the pressurized fluid at a uniform rate so that the transverse width of the annulus remains constant along the length of the transformer.