baber/WOPTO huggingface dataset:
Patent CA-2017749-A1 (CA)
Title: Hull construction for an amphibious craft
Inventor: SCHAD ROBERT D
IPC: B63B3/20
Filed: 1990-05-29
Abstract: ABSTRACT OF THE DISCLOSURE     An amphibious craft is disclosed having a primary deck, hull bottom and hull sides wherein a secondary load carrying deck is suspended free substantially of the hull bottom and hull sides.  The disclosure includes a method of suspending and distributing the load carried by the secondary deck.
Patent CA-2018327-A1 (CA)
Title: Alpha-olefin process
Inventor: HARKINS ALVIN E
IPC: C07C11/02
Filed: 1990-06-05
Abstract: Alpha-olefins containing 6-14 carbon atoms are made in a dual displacement loop ethylene/tri-lower alkyl chain growth process which includes, in one closed loop, an initial ethylene/triethyl aluminum (TEA) chain growth, C2-14 olefin separation, 2-stage ethylene displacement, C2-12 olefin separation and recycle of residual TEA and higher olefins back to the initial ethylene/TEA chain growth. A second closed loop starts with the same ethylene/TEA chain growth product followed by C4-14 olefin separation, C4-8 olefin displacement on the bottoms from C4-14 olefin separation, ethylene chain growth on the C4-8 olefin displacement product and recycle of this ethylene displacement product back to the olefin separation stage following the initial ethylene/TEA chain growth reaction.
Patent CA-2022312-A1 (CA)
Title: Tree resistant compositions
Inventor: TURBETT ROBERT J
IPC: C08L23/04
Filed: 1990-07-25
Abstract: A water tree resistant composition comprising: (a) a copolymer of at least the two comonomers, ethylene and 4-methyl-1-pentene, said copolymer having a density no greater than about 0.920 gram per cubic centimeter; or (b) a copolymer of at least the two comonomers, ethylene and 1-octene, said copolymer having a density no greater than about 0.920 gram per cubic centimeter; or (c) the copolymer of (a) or (b) grafted with a hydrolyzable vinyl silane, the copolymers of (a) and (b) being produced by contacting the relevant comonomers, under polymerization conditions, with (i) a catalyst system containing a catalyst precursor comprising magnesium, titanium, a halogen, and an electron donor, and a hydrocarbyl aluminum cocatalyst or (ii) a catalyst system containing a catalyst precursor comprising vanadium an electron donor, and a hydrocarbyl aluminum halide; a hydrocarbyl aluminum cocatalyst; and a halogen substituted lower alkane promoter.
Patent CA-2025085-A1 (CA)
Title: Multi-system am stereo receiver having preferred mode of operation
Inventor: KAHN LEONARD R
IPC: H04B1/26
Filed: 1990-09-11
Abstract: ABSTRACT OF THE DISCLOSURE        Stereo decoders for use in AM stereo receivers are disclosed which have two different modes of operation, one of which suffers adverse effects from the presence of co-channel interference and employs envelope detection to develop an (L+R) representative signal.  When such interference is detected, the decoder switches to a second mode of operation, which is less affected by the interference, and also switches to synchronous detection to develop the (L+R) representative signal.
Patent CA-2025277-A1 (CA)
Title: Free-radical generating aromatic diols, polycarbonates containing thermal labile groups and their conversion to polycarbonate block copolymers
Inventor: YEAGER GARY W
IPC: C08G64/08
Filed: 1990-09-13
Abstract: RD-19,696 FREE-RADICAL GENERATING AROMATIC DIOLS,POLYCARBONATES CONTAINING THERMAL LABILE GROUPS AND THEIR CONVERSION TO              POLYCARBONATE BLOCK COPOLYMERS         Abstract of the Disclosure Bisphenols containing free-radical generating groups, such a-q bissilylpinacolate groups, are provided. These bisphenols can be used to make free-radical generating polycarbonate macroinitiators having thermally labile groups which can be heated with vinyl monomers, such as styrene to make polycarbonate block copolymers.
Patent CA-2025726-A1 (CA)
Title: In-line leaf trap
Inventor: GEFTER ALEXANDER A
IPC: B01D35/05
Filed: 1990-09-19
Abstract: ABSTRACT OF THE DISCLOSURE      An in-line leaf trap (100) is disclosed having a housing defined by a main body (112) and a separable lid (114).  A filter (116, 118) is provided in the leaf trap for gathering debris.  A locking ring (124) is provided having an inner threaded region (126) engagable with threads provided on the main body of the housing to seal the housing.  The locking ring (124) includes a plurality of spokes (128) extending between the ring and central cylindrical yoke (130). The spokes are provided to facilitate rotation of the locking ring with one hand.  In the preferred embodiment, a handle (190) is provided on the main body.
Patent CA-2027021-A1 (CA)
Title: Surfactant treatment of aromatic polyimide gas separation membranes
Inventor: HAYES RICHARD A
IPC: B01D67/00
Filed: 1990-10-05
Abstract: SURFACTANT TREATMENT OF AROMATIC POLYIMIDE GAS SEPARATION MEMBRANES     ABSTRACT OF THE DISCLOSURE      A process for improving the permselectivity of an aromatic polyimide gas separation membrane comprising contacting said membrane with a solution of a surfactant in a solvent which swells the membrane but in which the membrane material is soluble to an extent of no more than 3% under the conditions used to contact the membrane.
Patent CA-2027234-A1 (CA)
Title: Disposable liquid-absorbing structure
Inventor: GUPTA VIJAI P
IPC: A61F13/66
Filed: 1990-10-10
Abstract: ABSTRACT     Superabsorbent nonwoven web detachably mounted to a structural support material for use as a reusable diaper or incontinence product.
Patent CA-2030488-A1 (CA)
Title: Stabilized aspiration bipsy needle assembly
Inventor: KOPANS DANIEL B
IPC: A61B10/02
Filed: 1990-11-23
Abstract: ABSTRACT OF THE DISCLOSURE         A stabilized  aspiration  biopsy  needle  assembly includes  an  introducing  needle  adapted  to  be  inserted percutaneously into a human or veterinary body and advanced to the target tissue, an elongated, generally trough-shaped trocar  member  adapted  for  assembly  with  the  introducing needle and having its distal tip extending beyond the distal tip of the introducing needle to stabilize the distal end of the  introducing  needle  while  maintaining  a  lumen  during subsequent introduction of an aspiration needle through the introducing  needle,  and  manipulation  of  the  aspiration needle during aspiration procedures.
Patent CA-2031717-A1 (CA)
Inventor: THEROUX LUC
IPC: H05B41/04
Filed: 1990-12-06
Abstract: A starting and operating device for controlling a starter that ignites a sodium lamp, AC power voltage being provided to the starter and sodium lamp by means of a power supply transformer having its secondary winding connected to the starter and sodium lamp,  and its primary winding connected to an AC power source.  The device comprises an AC/DC converter connected  to  the primary winding for converting AC voltage into a low DC voltage;  a high power disabling device for disabling the starter;  an optor-isolator connected to the high power disabling device for controlling the high power disabling device by means of a low DC signal, and for electrically isolating the high power disabling device; a timer connected to the opto-isolator for generating  the  low  DC  signal  after  passage  of  a predetermined amount of time to disable the starter; and a first delay circuit connected to the AC/DC converter for detecting energizing of the AC/DC converter,  and for generating a delayed resetting signal for the timer after detection of the energizing whereby the AC/DC converter can be stabilized before resetting the timer.
Patent CA-2031910-A1 (CA)
Title: Preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne soundproofing properties, and polyoxyalkylene-polyol mixtures which can be used for this purpose
Inventor: LUTTER HEINZ-DIETER
IPC: C08G18/66
Filed: 1990-12-10
Abstract: The present invention relates to a process for the preparation of flexible, soft polyurethane foams having viscoelastic, structure-borne sound-proofing properties in a temperature range of from -20°C to +80°C by reacting a)   a polyoxyalkylene-polyol mixture containing ai)  block polyoxypropylene-polyoxyethylene-polyol mixture having a hydroxyl number of from 14 to 65 and containing from 2 to 9 % by weight of terminal  ethylene oxide units, based on the weight of the polyoxypropylene units, prepared by anionic polymerization, at elevated temperatures, of 1,2-propyleneoxide onto an initiator molecule mixture having a mean functionality of from 2.3 to 2.8, comprising water and ylycerol and/or trimethylolpropane, and polymerization of acylene oxide onto the resultant polyoxypropylene adduct, and aii) one or more difunctional and/or trifunctional polyoxypropylene-polyoxyethylene-polyol containing from 60 to 85 % by weight of oxyethylene units, based on the total weight of polymerized alkylene oxide units, and having a hydroxyl number of from 20 to 80, and b)   if desired low-molecular-weight chain extenders with c)   organic and/or modified organic polyisocyanates in the presence of d)   catalysts, e)   blowing agents, preferably water, and, if desired, f)   auxiliaries and/or additives, and to the polyoxyalkylene-polyol mixtures (a) which can be used for this purpose.
Patent CA-2033241-A1 (CA)
Title: Method for purification of exhaust gas and apparatus therefor
Inventor: MURAOKA SHIGEHISA
IPC: F01N13/02
Filed: 1990-12-27
Abstract: ABSTRACT OF THE DISCLOSURE         A method for the purification of the exhaust gas, which comprises passing the exhaust gas through a catalytic system having disposed on the exhaust gas inlet side a first catalyst produced by depositing a catalytic substance on at least  one  metallic  substrate  selected  from  the  group consisting of metal nets and perforated metal sheets and on the exhaust gas outlet side a second catalyst produced by depositing  a  catalytic  substance  on  a  honeycomb  shaped monolithic carrier and an apparatus therefor.
Patent CA-2034214-A1 (CA)
Inventor: CARTER MICHAEL C
IPC: C01B21/06
Filed: 1991-01-15
Abstract: La présente invention vise une méthode et un appareil servant à la fabrication d'un produit contenant un composé de nitrure, par exemple le nitrure de silicium. Le réacteur utilisé loge une chambre divisée en une zone de combustion et une zone de réaction. Un mélange combustible est injecté dans la zone de combustion généralement en direction de la zone de réaction et comburé dans la zone de combustion. Au moins un réactif est injecté au point délimitant les deux zones de la chambre de réaction, parallèlement à l'axe longitudinal de la chambre, de manière à engendrer une réaction qui entraînera la formation d'un produit brut formé avec le composé de nitrure. Sous un autre aspect, un produit brut en poudre formé dans le réacteur se compose de nitrure de silicium constituant le composé de nitrure et de silicium élémentaire.
Patent CA-2034682-A1 (CA)
Title: Reduced-calorie non-cariogenic edible compositions containing polydextrose and an encapsulated flavoring agent and methods for preparing same
Inventor: CHERUKURI SUBRAMAN R
IPC: A23L29/00
Filed: 1991-01-22
Abstract: REDUCED-CALORIE NON-CARIOGENIC EDIBLE COMPOSITIONS      CONTAINING POLYDEXTROSE AND AN ENCAPSULATED FLAVOURING           AGENT AND METHODS FOR PREPARING SAME                 ABSTRACT OF THE DISCLOSURE           The present invention pertains to a reduced-calorie non-cariogenic edible composition which comprises (a)  a  bulking  agent  comprising  Polydextrose,  (b)  an encapsulated flavoring agent, and (c) an effective amount of an intense sweetening agent.   The present invention also pertains to methods for preparing the novel flavored bulking   agent   compositions   and   the   edible   and confectionery products  in which the novel  compositions may be employed.
Patent CA-2038481-A1 (CA)
Title: Method and apparatus for recycling thermoplastic containers
Inventor: SADR CHANGIZE
IPC: C08J11/06
Filed: 1991-03-18
Abstract: ABSTRACT OF THE DISCLOSURE            In general, used thermoplastic liquid containers such as oil and solvent bottles are discarded. When recycling oil bottles, the usual practice is to wash the bottles with a solvent to remove oil therefrom.  Washing of the bottles results in large quantities of used, oil-containing solvent, which present a disposal problem.  A simple solution to the problem of recycling liquid containers with no preliminary washing or cleaning operation includes the steps of tumbling the bottles to promote liquid separation, shredding the bottles into small pieces and draining the liquid therefrom, grinding the pieces of plastic to yield a particulate thermoplastic, and mixing the particulate thermoplastic and any liquid remaining therein with an additive, e.g. an oil absorbent and a filler such as calcium carbonate, glass, mica or talc , and when the liquid is an oil, an absorbent to produce an extrudable mixture which can be used to form new containers.
Patent CA-2040159-A1 (CA)
Title: Arrangement for closing the top of a soderberganode in an electrolytic aluminium reduction cell
Inventor: OLSEN ARNT T
IPC: C25C3/22
Filed: 1991-04-10
Abstract: The present invention relates to an arrangement for closing the top of a S~derberganode used in an electrolytic cell for production of aluminium. The anode comprises an anode casing and vertical contact bolts for holding and for conducting electric current to the anode. The top of the anode is closed by means of at least one central cover having openings for the contact bolts and at least one side cover which can be opened in order to charge anode paste to the anode.
Patent CA-2044262-A1 (CA)
Title: Disc-type coin sorter with retractable guide surfaces
Inventor: RASMUSSEN JAMES M
IPC: G07D3/12
Filed: 1990-10-31
Abstract: A disc-type coin sorter has a rotatable disc with a resilient top surface and a stationary sorting head positioned above the disc with the lowermost surface of the sorting head only slightly spaced from the resilient top surface of the disc. The sorting head has coin queuing means (20) for arranging coins of mixed denominations in a single row and a single layer with selected edges of the coins aligned at a common layer with selected edges of the coins aligned at a common radial position.  A first guide surface (22) engages selected edges of the aligned coins and progressively moves the engaged coins radially as the coins move circumferentially along the first guide surface.  A plurality of elongated second guide surfaces (23a-23f) spaced radially from and facing toward, the first guide surface forces coins of selected denominations past the first guide surface (22) at selected circumferential locations.
Patent CA-2045471-A1 (CA)
Inventor: JOHNSON GARY D
IPC: A45B17/00
Filed: 1990-02-09
Abstract: A windproof umbrella includes a post (14); a plurality of ribs (18) extending outwardly in a radial direction from the upper end of the post; a lower canopy (20) secured on the ribs (18); a plurality of vent holes (34) therethrough; and an upper canopy (36) positioned on the lower canopy (20) and covering all lower vent holes (34). The upper canopy (36) is smaller than the lower canopy (20). Elastic fastening straps (48) secure the upper canopy (36) to the free end portions of the ribs (18) for permitting the upper canopy to elastically lift up responsive to wind. The upper canopy (36) may include at least one vent hole (76) closer to the free ends of the ribs (18) than the lower vent holes (34). A plurality of slits (44) extending inwardly from the outer edge of the upper canopy (36) may be provided, each slit (44) being in line with one rib (18). A channel forming member (57) may be secured to the lower canopy (20) in surrounding relation to each lower vent hole (44) for further preventing entry of water therethrough.
Patent CA-2045539-A1 (CA)
Inventor: ALMEN TORSTEN
IPC: A61K47/48
Filed: 1990-01-15
Abstract: ABSTRACT           Heterocyclic Chelating Agents There are provided heterocyclic chelating agents particularly useful for the preparation of diagnostic and therapeutic agents for magnetic resonance imaging, scintigraphy, ultrasound imaging, radiotherapy and heavy metal detoxification, said agents being compounds of formula I                     (I) (wherein X represents a bond, an oxygen or sulphur atom or a group of formula CHR1 or NR3; each R1 which may be the same or different represents a hydrogen atom, a group of formula OR3 or NR3R3 or an alkyl or alkoxyalkyl group optionally substituted by a hydroxyl group or by a group of formula NR3R3 or CONR3R3; each R2 which may be the same or different represents a hydrogen atom or an alkyl or alkoxy group optionally substituted by a hydroxyl or alkoxy group; each R3 which may be the same or different represents a hydrogen atom, an optionally hydroxylated alkyl group or a group of formula CH2Y; Y represents a group of formula COZ, CON(OH)R4, POZ2 or SO2Z; Z represents a group of formula OR4, NR4R4 or           where each R11 which may the same or different is a hydrogen atom, a hydroxyl group or an optionally hydroxylated alkyl group , s is 0, 1 or 2, and W is a group CHR11, NR11 or an oxygen atom; and each R4 which may be the same or different represents a hydrogen atom or an optionally mono- or poly hydroxylated alkyl, alkoxyalkyl or polyalkoxyalkyl group; with the provisos that where s is 0 then W is a CHR11 group and that where X represents a bond or a group CHR1 at least one group R1 or R2  represents other than a hydrogen atom or an unsubstituted alkyl group) and chelate complexes and salts thereof.
Patent CA-2045814-A1 (CA)
Inventor: WAKAMORI TAKEHISA
IPC: G01B5/255
Filed: 1991-06-27
Abstract: Disclosed herein is a toe angle detecting appara-tus comprising a wheel supporting device for supporting thereon each of wheels mounted on a vehicle, a toe angle detecting device rotatably supported on a support shaft and having a pair of detectors brought into con-tact with predetermined portions of one of said wheels, which portions are spaced a predetermined distance from each other, and an angle detector for detecting an angle at which the toe angle detecting device is rotated about the support shaft.
Patent CA-2047032-A1 (CA)
Inventor: AUBRY CLAUDE
IPC: H01Q21/29
Filed: 1991-07-15
Abstract: DISPOSITIF DE MESURE DE L'ANGLE DE SITE POUR RADAR EQUIPE D'UNE ANTENNE A REFLECTEUR DU TYPE A DOUBLE COURBURE Selon l'invention, on dispose dans l'antenne à réflecteur d'un radar des sources élémentaires auxiliaires (4 à 6) sous la source principale (2). Par division des signaux de mesure de la voie de mesure de la source principale et de la voie de mesure auxiliaire, on obtient une caractéristique monotone qui permet de mesurer avec une bonne précision l'angle de site. FIGURE 1
Patent CA-2047050-A1 (CA)
Title: Analyte-substitute reagent for use in specific binding assay methods, devices and kits
Inventor: BAUGHER BENNETT W
IPC: G01N33/58
Filed: 1991-07-15
Abstract: ABSTRACT   Assay reagents, devices, methods and kits used in the analysis of low molecular weight analytes which by themselves are too small or unable to bind to two specific binding members at the same time. The invention involves the use of an analyte-substitute reagent (ASR) comprising at least two components, the first of which is identical to or an analog of the analyte to be determined, while the second is an unrelated ligand for which an antibody or other specific binding member can be obtained or produced.
Patent CA-2047163-A1 (CA)
IPC: G11B7/243
Filed: 1991-07-16
Abstract: An optical disk including a transparent plastic substrate, a recording film formed on one side surface of the  substrate,  a  first  protective  film  covering  the recording film, and a moisture-impermeable film formed on the other side surface of the substrate with or without the presence of an intermediate film.
Patent CA-2047313-A1 (CA)
Title: Polypeptides
Inventor: KITADA CHIEKO
IPC: C07K14/575
Filed: 1991-07-17
Abstract: TITLE: POLYPEPTIDES     ABSTRACT    A polypeptide or a pharmaceutically acceptable salt thereof having c-AMP-producing activity is disclosed, the polypeptide being represented by the following general formula:       wherein X represents any amino acid residue or an acyl group, and Y represents NH2, OH, Ala-NH2, Ala-OH, Ala-Ala-NH2, Ala-Ala-OH, Ala-Ala-Val-NH2 or Ala-Ala-Val-OH.
Patent CA-2048775-A1 (CA)
Inventor: TRAVER FRANK J
IPC: A61K8/00
Filed: 1991-08-08
Abstract: Docket No. 60SI-1346 ABSTRACT OF THE DISCLOSURE     There are provided novel diorganoaminoorganosiloxy-terminated polysiloxanes and compositions thereof which provide improved properties to hair and textile fabric treated with them. Methods for treating hair and fabric with the polysiloxanes and compositions containing them are also provided.
Patent CA-2049798-A1 (CA)
Title: Two-stage tilt cylinder mechanism for marine propulsion stern bracket assembly
Inventor: BINVERSIE GREGORY J
IPC: F02B61/04
Filed: 1991-08-23
Abstract: TWO-STAGE TILT CYLINDER MECHANISM FOR MARINE PROPULSION STERN BRACKET ASSEMBLY     Abstract Of The Disclosure A shock absorber adapted for use with the swivel bracket assembly of an outboard motor or the like,  is disclosed, which swivel bracket assembly permits rotation of the motor to clear an underwater object if and when a boat strikes such an object.  The shock absorber has a two stage  operation  in  that  it  permits  a  swivel  bracket assembly to rotate and provides a counterforce that is initially  lower,  and  after  some  degree  of  rotation, preferably sufficient to have the drive shaft housing clear the object, provides a higher counterforce to continued rotation.
Patent CA-2050633-A1 (CA)
Title: Screen panel fixing system
Inventor: BERNADOU ANDREW L
IPC: B07B1/00
Filed: 1991-09-04
Abstract: ABSTRACT       An  ore  screening  apparatus  and  a  system  for  fixing screen panels to a screen deck frame of the apparatus.   The fixing system includes:  spaced apart, elongate fixing members extending on a sub-frame structure so as  to  receive  screen panels between adjacent members.  Each fixing member includes a pair of connection portions extending longitudinally of the fixing members and being deflectable relative to one another. Cooperable connection means are provided  on  each connection portion  and  an  associated  side  edge  region of  the  screen panels  for  connecting  the  screen  panels  to  the  fixing members.   The connection portions are deflectable to connect and  disconnect  individual  screen  panels   to   and   from, respectively, the fixing members.  Elongate clamp members are arranged to extend along side structures of the apparatus so that outer side edge regions of the screen panels adjacent the side structures are positioned between the clamp members and sub-frame  structure.   Force  applying means  force  the  clamp members into contact with their respective screen panels and side  structures.   The  force  applying  means  includes  force applying members through which clamping forces are transmitted to the clamp members.   The clamp members and force applying members have interengageable force transmitting surfaces which are  laterally profiled  to provide separate surface portions through which forces are transmitted to urge the clamp members into contact with the screen panels and into contact with the side structures.