baber/WOPTO huggingface dataset:
Patent CA-2104476-A1 (CA)
Inventor: ARORA SUDERSHAN K
IPC: C07H1/00
Filed: 1992-02-07
Abstract: A solvent-free method for synthesizing an ethereally-substituted, blocked monosaccharide comprising the steps of: 1) mixing, in the absence of solvent, a partially blocked monosaccharide unblocked at one position, an alkyl halide or a substituted alkyl halide, and an anhydrous alkali base; 2) heating the mixture to a temperature sufficient to allow the mixture to react; 3) maintaining the mixture at a suitable temperature for a time sufficient to form an ethereally-substituted blocked monosaccharide and drive off any water produced; 4) removing any unreacted alkyl halide or substituted alkyl halide from the mixture; 5) recovering the ethereally-substituted blocked monosaccharide product from the mixture;  and, optionally, 6) selectively hydrolyzing the ethereally-substituted blocked monosaccharide product to remove one or more of the acetal blocking groups.
Patent CA-2105908-A1 (CA)
Title: Electrohydraulic assist device
Inventor: MUSSIVAND TOFY
IPC: A61M60/457
Filed: 1993-09-10
Abstract: This invention is directed to a system for a totally implantable circulatory device which combines the following components into a single integrated system: an actuation means for convertng energy into a pulsating blood flow, a volume displacement chamber for storage of a volume displacement mediums during the diastolic phase of the blood chamber, control electronics for the control and monitoring of the device, and a blood camber with ports equipped with one-way valves to ensure unidirectional flow of blood from the natural heart through the blood chamber to the systemic and / or pulmonary circulation systems. The integrated system is totally implantable within the chest cavity and requires no physical connections penetrating through the skin to the outside of the body. Due to the location of the device in the human chest, it allows for a reduced conduit length to the natural heart. The size and geometry of the system are suitable for implantation in the chest cavity where the device does not adversely compress adjacent organs, create dead space or limit chest closure after implantation. The overall length of the device is less that 18 cm with an overall thickness less than 4 cm and an overall width less than 12 cm.
Patent CA-2107861-A1 (CA)
Inventor: CONRAD HANS-ROLF
IPC: B01F35/60
Filed: 1993-10-06
Abstract: A safety device for the roll space within a calender or other roll machine is disclosed. The rolls when rotating, excite oscillations in the beam at the resonant frequency of the beam. This can occur during start-up or during normal operation. The safety device of the present invention comprises a beam and additional mass that is oscillatorily suspended from the beam in order to reduce the amplitude of the beam oscillations at the beam resonant frequency. In addition, a damping element between the additional mass and the beam is used to reduce any undesired oscillations due to newly created resonant frequencies introduced into the system.
Patent CA-2108953-A1 (CA)
Title: Natural ecosystem reproducing method
Inventor: YANOHARA YOSHITAMI
IPC: A01K67/00
Filed: 1993-10-21
Abstract: ABSTRACT OF THE DISCLOSURE      A natural ecosystem reproducing method comprising a step of preparing as a container,  for example, a box-like bed with its top open for receiving living things such as plants, for example, green vegetables,  rootcrops and fruit vegetables and aquatics like fishes, shells and crustaceans and growing such plants and aquatics, a step of storing in the bed a culture solution containing nutrients for growth of such plants and aquatics, a step of waving the culture solution by means of a wave maker which moves vertically a rectangular  parallelepiped   wave-making  element  disposed above the bed and made of, for example, a synthetic resin and a step of periodically and vertically changing the level of the culture solution stored in the bed to thereby cause a ebb and flow phenomenon in the bed.
Patent CA-2109797-A1 (CA)
Title: Impermeable, abradable seal and method for the production thereof
Inventor: JARRABET GREGORY P
IPC: F01D11/12
Filed: 1991-11-12
Abstract: IMPERMEABLE, ABRADABLE SEAL AND METHOD       FOR THE PRODUCTION THEREOF            ABSTRACT   Gas turbine engines employ a variety of abradable liners to decrease the clearance between the rotating components and the surrounding casing. There is normally a trade-off between porosity, (and concomitant permeability) and the abradability of the liner material, such that materials with good abradability are permeable to gas flow - resulting in performance losses. Permeability of porous liners is decreased by infiltrating the liner with a low-viscosity liquid containing a metal or metal oxide. After infiltration, the viscosity of the liquid is substantially increased to prevent its egress from the porous liner. Thereafter, the liner is heated at an elevated temperature to drive off the remaining liquid and provide an oxide which blocks the passages and decreases the permeability of the liner.
Patent CA-2110996-A1 (CA)
Inventor: RANCOURT CLAUDE
IPC: F16D65/847
Filed: 1992-06-22
Abstract: An improved truck disc brake using a spring loaded safety brake and a pneumatic bladder (68) for releasing the safety brake as well as a service brake enhancing bladder (70) and a pair of rotor brake discs (22, 24). The brake discs (22, 24) are ventilated and include ventilation channels (46) extending radially thereof and vent air is def-lected into the brake assembly by means of a scoop (134) on the exteri-or of the housing (18) passing through openings (148) in the housing and the rotor brake discs (22, 24) act as an impeller moving the venti-lation air outwardly thereof to dissipate the heat. A wear gauge (110, 112, 132) is provided to determine the wear of the brake linings (52, 56, 58) and discs (22, 24) and a quick release valve (126) is mounted in the brake assembly adjacent the pneumatic bladder (70) related to the service brake, to quickly release the air when required. Temperature sensors (100, 102) are provided within the brake assembly to read the temperature of the brake assembly. A radial groove (142) extends on the friction surface of the radial disc to provide an air cushion be-tween the brake linings (52, 56, 58) and the friction surface (22a, 22b, 24a, 24b) of the disc (22, 24) and to discharge debris.
Patent CA-2111018-A1 (CA)
Title: Integrated mtbe process
Inventor: RUBIN JACOB N
IPC: C07C41/06
Filed: 1993-12-09
Abstract: ABSTRACT OF THE PRESENT INVENTION           There is provided a novel integrated process for producing methyl  tertiary butyl  ether  from a C4 containing hydrocarbon feedstock comprising passing the feedstock through zones of butadiene hydrogenation, MTBE synthesis,  paraffin/olefin  separation  and  skeletal isomerization.
Patent CA-2111328-A1 (CA)
Title: Microwavable food package having a bag with reverse folded gussets
Inventor: ARCHIBALD WILLIAM E
IPC: B65D81/34
Filed: 1992-06-11
Abstract: A food product comprising an edible charge of popping corn (10) and a bag (12) containing that charge and suitable for use in a microwave open.  The bag is preferably of a tube type, and includes generally flat front (14) and back (16) panels and two inwardly folded side panels (20 and 22).  The folds of the side panels  preferably form two or more gussets (20a, 20b, 22a, 22b). The bag may be made of single ply paper sufficiently  stiff to support the bag in an expanded position  and maintain its approxi-mate expanded shape achieved during  cooling but flexible enough  to be readily expanded.  The gussets in the side panels  are formed to open readily, and have  independently movable  ends (23), thereby enabling the bag to inflate more  completely and be-come more rounded.
Patent CA-2111883-A1 (CA)
Title: Print folder
Inventor: BRINK THOMAS J
IPC: B42F7/02
Filed: 1993-12-20
Abstract: Abstract of the Disclosure The present invention is a folder, particularly adapted for containing and viewing photographic prints or the like. The folder includes a front cover and a rear cover foldably connected to the front cover at a spine or binding area. The folder includes an integral interior pocket and selectively releaseable closure. The binding area includes adhesive securing means for removably securing the contents in the folder. The invention also encompasses a flat blank for forming the folder.
Patent CA-2113721-A1 (CA)
Title: Water-based chemical composition
Inventor: ADKINS RONALD R
IPC: C09D11/10
Filed: 1992-07-27
Abstract: Water-based chemical compositions suitable for screen printing and a method of screen printing the water-based chemical compositions. Such water-based compositions are virtually solventless, that is, having less than 12 % volatile organic solvents when press ready, producing screen printed substrates that are weather-resistant and have excellent color retention.
Patent CA-2115788-A1 (CA)
Inventor: BEAL THOMAS J
IPC: F24B1/18
Filed: 1994-02-16
Abstract: The invention relates to a direct vent gas fireplace adapted for attachment to a concentric flue pipe assembly having an exhaust pipe and fresh air pipe.  A top wall, rear wall, bottom wall and side walls define a combustion chamber. A gas burner is disposed in the combustion chamber.  A slanted flue attachment wall is attached to and extends between the top wall and rear wall.  The slanted flue attachment wall is disposed at obtuse angles relative to the top wall and rear wall.  A first pipe member is orthogonally attached to the flue attachment wall and is in fluid communication with the combustion chamber for conveying combustion products from the combustion chamber.  A second pipe member having a diameter larger than the first pipe member is disposed concentrically around the first pipe member.  The first and second pipe members define an annular space therebetween forming an air intake duct.  A combustion air duct extends between and is in fluid communication with the air intake duct and the combustion chamber for supplying combustion air to the combustion chamber.  The exhaust pipe and fresh air pipe are respectively attached to the first and second pipe members and can be selectively oriented to extend away from the fireplace in a substantially vertical or horizontal direction.
Patent CA-2116834-A1 (CA)
Title: Ophthalmic lens with anti-toxin agent
Inventor: VANDERLAAN DOUGLAS G
IPC: G02B1/14
Filed: 1994-03-02
Abstract: ABSTRACT   An ophthalmic lens for placement on the anterior surface of the eye is disclosed.  The lens has impregnated in it or it has coated on its surface an ester of a polyhydric aliphatic alcohol and a fatty acid in which the alcohol residue has at least one hydroxyl group.    The ester  is present  in an amount which  is  effective to prevent or decrease the release of bacterial toxins when the  lens  is  exposed  to  those  toxins.    The  lens  is particularly well-suited for a soft hydrogel contact lens, and  advantageously  eliminates,  minimizes  or  prevents keratitis.   Bacterial keratitis is an infection of the cornea of the eye which may occur during extended wear of the lens and may cause ulceration of the cornea.
Patent CA-2117035-A1 (CA)
Title: Method and apparatus for rapid identification of an unknown system based on an echo signal having a plurality of dispersive portions
Inventor: SUGIYAMA AKIHIKO
IPC: H04B3/23
Filed: 1994-03-04
Abstract: In an apparatus for identifying an unknown system based on an echo signal, which includes multiple echoes, produced in response to a transmission input signal, a plurality of adaptive filters each of which has a plurality of taps, are supplied with the transmission signal in parallel to individually identify the multiple echoes by successively modifying tap coefficients in each adaptive filter.  Information is transmitted from a j-th adaptive filter to a (j+1)-th adaptive filter to identify each of the multiple echoes.  Each adaptive filter monitors the number of modification times of tap coefficients or an echo return loss enhancement (ERLE).  Alternatively, a step size is changed from one to another to be delivered to tap coefficient generators and to accomplish high speed convergence.
Patent CA-2118536-A1 (CA)
Inventor: GOTO YASUO
IPC: E04B1/58
Filed: 1994-10-20
Abstract: ABSTRACT      The object is to provide a connector, a connector unit, and a connected connector unit made by connecting together the connector units; all capable of providing versatility in size and strength, facilitating low cost jig fabrication and well-suited for mass production, by using a tubular member of a multiple layer structure made by laminating two or more different materials selected from the group consisting of metal, plastic, ceramic, wood or the like.    The device comprises; a hollow tubular member 2 of a multiple layer structure made by laminating two or more materials, and open on at least one end thereof, an adhesive injection portion formed to make connection between the end or side and the hollow part 7 of the tubular member 2; an engage part 9 for a branch pipe formed in the adhesive injection portion; and a hollow branch pipe 10 with its one end provided with an engage part 12 capable of attaching or detaching from the engage part 9 for the branch pipe.
Patent CA-2123819-A1 (CA)
Title: Indicators and pushbuttons
Inventor: EDWARDS JAMES F
IPC: G09F13/04
Filed: 1994-05-18
Abstract: ABSTRACT OF THE DISCLOSURE       An illuminable member for an indicator or pushbutton has a translucent or transparent carrier with which a cover member is arranged to engage.  The carrier and cover member are standardised components, and the carrier is retained relative to a housing of the indicator or pushbutton during manufacture.  When the indicator or pushbutton is assembled and is to be mounted in its in use location, an appropriate cover member is engaged with the carrier.  The cover member may be plain or carry selected indicia, and as it is assembled at the use location is selected appropriately to the use.  To facilitate the engagement, the cover member carries spaced projections which engage in slots in the carrier.  Flanges of the projections prevent removal of the cover member from the front of the completed and installed indicator or pushbutton.
Patent CA-2125725-A1 (CA)
Title: Urea derivative containing heterocyclic ring
Inventor: MATSUMURA HIROMU
IPC: C07D401/04
Filed: 1994-06-13
Abstract: ABSTRACT OF THE DISCLOSURE     A compound represented by the following Formula I :                                          (I) wherein Z1 is C or N; m1 is 0 when Z1 is N and m1 is 1 when Z1 is C; R3 can form a bond with R2 when Z1 is C; A1 is 0, SO2, or CH2; n1 is 0 or 1 when A1 is 0 or SO2 and n1 is an integer of 0 to 3 when A1 is CH2; R1 is a group  selected from the group consisting of a con-densed aromatic ring, a substituted condensed aromatic ring, carboxyl, alkoxycarbonyl, and   whersin R11 is H or OH, or R11 can form a bond with R2 when Z1 is C and n1 is 0; R12 and R13 are independently phenyl, substituted phenyl, a heterocyclic ring, or a substituted heterocyclic ring, or R12 and R13 can form a condensed ring; R2 is H when forming no bond with R3 or R11; R3 is H when forming no bond with R2; k1 is an integer of 2 to 5, Y1 is a group selected from the group consisting of  O, S, SO, SO2, CH2, and   wherein Z2 is N or C; m2 is 0 when Z2 is N and m2 is 1 when Z2 is C; A2 is 0, SO2, or CH2; n2 is 0 or 1 when A2 is 0 or SO2; n2 is an integer of 0 to 3 when A2 is CH2; R4 is a group selected from the group consisting of alkyl, phenyl, substituted phenyl, a heterocyclic ring, a substituted heterocyclic ring, -CO-R41, and   wherein R41 is a group  selected from the group con-sisting of OH, alkoxy, amino, arylalkyloxy, substituted amino, arylalkenyl, and substituted arylalkenyl; R42 is H or OH, or R42 can form a bond with R5 when Z2 is C and n2 is 0; R43  and R44 are independently phenyl, substituted phenyl, a heterocyclic ring, or a substi-tuted heterocyclic ring; R5 is H when forming no bond with R42; Y2 is CH2 or CO; Y3 is (CH2)2 or phenylene; and k2 is 0 or 1, or pharmaceutically acceptable salts thereof.
Patent CA-2126079-A1 (CA)
Inventor: FOUST DONALD F
IPC: B03B1/00
Filed: 1993-10-12
Abstract: Mercury and mercury-containing compounds can be removed from soil, sand, and similar materials by a remediation method in which the contaminated material is treated with an aqueous composition comprising an oxidant, such as iodine, and a complexing or solubilizing agent, such as potassium iodine, the liquid and solid phases are separated, and further processed as needed.
Patent CA-2129491-A1 (CA)
Title: Hair coloring composition
Inventor: COHEN DAVID
IPC: A61K8/22
Filed: 1994-08-04
Abstract: A two part aqueous composition for coloring and providing durable conditioning to human hair which forms a gel on mixing of an alkaline aqueous lotion first part having a pH of from about 7 to about 11 containing from about 0.005% by weight to about 5% by weight of at least one primary intermediate and at least one coupler for the formation of oxidation dyes, from about 0.1% to about 5% of a cationic polymer, from about 0.5% to about 15% by weight of an anionic or amphoteric surfactant or mixture thereof and at least 70% by weight water, and an aqueous developer second part having a pH of from about 2 to about 6 containing from about 0.5% by weight to about 40% by weight of a peroxide oxidizer and from about 0.1% by weight to about 20% by weight of an anionic polymer, the anionic polymer being characterized in that it is insoluble in the developer and dissolves in the gel which forms when the lotion and developer are mixed.
Patent CA-2129838-A1 (CA)
Inventor: EVANS JOSEPH T JR
IPC: H01G7/00
Filed: 1993-02-18
Abstract: An improved method for constructing integrated circuit structures in which a buffer SiO2 layer (203) is used to separate various components comprising ferroelectric materials (208) or platinum (202) is disclosed. The invention prevents interactions between the SiO2 buffer layer (203) and the ferroelectric materials (208), The invention also prevents the cracking in the SiO2 which is commonly observed when the SiO2 layer (203) is deposited directly over a platinum region (202) on the surface of the circuit. The present invention utilizes a buffer layer of material which is substantially inert with respect to the ferroelectric material (208) and which is also an electrical insulator to separate the SiO2 layer (203) from the ferroelectric material (208) and/or the platinum regions (202).
Patent CA-2131745-A1 (CA)
Title: Low Gloss Powder Coating Composition and Method for Coating Therewith
Inventor: UMEHARA TAKAFUMI
IPC: C09D167/00
Filed: 1994-09-09
Abstract: A powder coating composition for forming a low gloss  coating  film  based  on  thermosetting  polyester resins  exhibiting  only  a  little  fluctuation  of  the resultant low gloss value even if an unequality in the mixing  proportion  of  components  or  in  the  baking condition   exists,    comprising   three   thermosetting polyester resins  (A),  (B)  and (C)  and a hardener  (D), wherein the weight ratio of the polyester resin (A)  to the  polyester  resin  (B)  is  in  the  range  of  90/10 70/30  and  that  of  the  polyester  resin  (A)  to  the polyester resin  (C)  is  in the range of 85/15 -  60/40 and the equivalent ratio of the polyester resin (A,  B or C) to the hardener (D)  is each in the range of 0.8 to 1.25 and wherein the polyester resins  (A),  (B)  and (C)  are  selected  from  those  in  which  the  moduli  of elasticity  Ea, Eb and  Ec for  the  products  of  the curing reaction of these resins with the hardener (D), respectively,  after 3 minutes' curing with the hardener (D)  at  200°C  hold  a  relatioship  that  the  differences between the moduli of elasticity Eb - a = Eb - Ea and Ec - a = Ec - Ea are  maintained  in  the  following  ranges, respectively:           20 dyn/cm  <  Eb - a < 103 dyn/cm and 1 dyn/cm  <  Ec - a < 10 dyn/cm
Patent CA-2137698-A1 (CA)
Inventor: ISHIKAWA TAKEHISA
IPC: H02N2/00
Filed: 1994-03-31
Abstract: An object of the invention is to provide a tool horn integrally formed into one unit of a vibration converting portion (1) and a torsional vibration tool portion (2), which can convert longitudinal vibration in an ultrasonic processing device (DE) to torsional vibration, wherein said vibration converting portion (1) is provided with a disk-shaped main body (11), in which flexural vibrations are induced when ultrasonic vibrations concerned with longitudial direction are imparted thereto, with one side thereof forming one pair of projected frames (12) attachable to the longitudial vibration horn and the other side thereof forming a connecting rib (14) connected to the torsional vibration tool portion (2), said connecting rib (14) being disposed in a relation occupying the diagonal position to said projected frames (12).
Patent CA-2140514-A1 (CA)
Title: Water-Reducible Golf Ball Coating
Inventor: BLAIR MARVIN A
IPC: A63B37/00
Filed: 1995-01-18
Abstract: A golf ball having a coating of a water-based, water-reducible polyurethane, and a related method of forming a coating on a golf ball which avoids the problems of foaming of the coating. The coating is formed by the addition of a first component comprising a compound having hydroxyl functionality, an organic solvent, an optical brightener and water, to a second component comprising an aliphatic polyisocyanate and an organic solvent. In addition, a method of forming a top coat on a golf ball having a SURLYN R outer layer which avoids the use of a primer coat or adhesion promoting layer is disclosed.
Patent CA-2141059-A1 (CA)
Title: Processing of recorded data
Inventor: GREEN IAN M
IPC: G11B20/00
Filed: 1993-07-27
Abstract: A coil (6) forming part of a tuned circuit (8) is wound around a gapped magnetic core (2). As a magnetic stripe (14) is passed under core (2), variations to the amplitude and frequency of the circuit (8) occur dependent upon the magnetic data on the strip (14). Selected data are manipulated to derive several values for combination via AND-gate (46). Only if the combination va-lue is above a threshold value is an indication given that the stripe (l4) is genuine and not an attempted copy.
Patent CA-2142137-A1 (CA)
Title: Sry genomic sequences and use in tissue sexing
Inventor: SILVERSIDES DAVID W
IPC: C12Q1/6879
Filed: 1995-02-09
Abstract: The present invention relates to novel bovine and porcine genomic sequences for the SRY gene along with oligonucleotide primers.   The present invention also relates to a method of sexing bovine or porcine tissue  by  discriminating  PCR  products  obtained  by amplification  of  specific  DNA or  cDNA  sequences  of bovine  or  porcine  tissue  which  is  used  as  a  DNA template and wherein two pairs of DNA primers are used for the PCR.  The present invention also relates to a method for the genetic manipulation or selection of sexual  phenotype  in  domesticated  animals,   which comprises using transgenes composed of SRY sequences to cause and control the expression of genetic ablation sequences and genetic switching sequences in undiffer-entiated and developing gonadal tissues of both XX and XY animals.