baber/WOPTO huggingface dataset:
Patent CA-2005492-A1 (CA)
Title: Water purification set and chemicals unit therefor
Inventor: STEENHUISEN JOHANNES E
IPC: C02F1/18
Filed: 1989-12-14
Abstract: ABSTRACT       The invention relates to a water purification set comprising a container holding a filtering unit and a chemicals unit, said container comprising two compartments having such dimensions that the filtering unit can be accommodated in one compartment and the chemicals unit can be accommodated in the other compartment, and in which the compartment holding the filtering unit can be closed separately by means of a cover, the cover of the compartment holding the chemicals unit being proportioned so that the said latter cover, in closed condition of the compartment holding the filtering unit, can at least partly also cover the cover of the said latter compartment.      The invention further relates to a chemicals unit to be used for the said water purification set comprising in individual closed reservoirs (i) a chlorinating agent, (ii) an  adsorption agent, and (iii) a coagulation and/or flocculation agent and optionally one or more other auxiliary filtering means, in which the reservoirs are connected together in such a manner that, upon use of the chemicals unit, the chemicals are placed available in the correct sequence of adding them to the water to be purified, namely (i) ? (ii) ?(iii).
Patent CA-2005984-A1 (CA)
Inventor: STARZEWSKI KARL H A O
IPC: C08F4/70
Filed: 1989-12-19
Abstract: Laminated polarizers A b s t r a c t Laminated polarizers are described comprising a polarizing core layer and adhesive layers on one or both sides,  each of which can accept a transparent outer layer, the polarizer being a polymer product containing polyacetylene, whose matrix is a polymer having polar groups,  and  as  adhesive  layers, in  addition  to conventional adhesives, such as epoxy resins or acrylic polymers, thermoplastic polyurethane-polyureas are used in particular, having a predominantly linear molecular structure with urethane segments and urea segments bonded exlusively aliphatically or cycloaliphatically.            Le A 26 413 - US
Patent CA-2006824-A1 (CA)
Title: Shaft coupling
Inventor: GUNDLACH THEODORE F
IPC: F16D1/033
Filed: 1989-12-28
Abstract: ABSTRACT OF THE INVENTION:     This shaft coupling (10) is for connecting a first shaft (12) to a second shaft  (14), each of said shafts having end flanges  (16,   18),   respectively,  disposed  in  face-to-face relation.  The coupling is provided with a key assembly (24) to transfer torque between the shafts, and a housing assembly to align and connect the shafts.  The key assembly includes a key block   (34)   inserted  into  aligned  peripherally  accessible keyways (36, 38) formed in the respective flanges.  The housing assembly includes a pair of semi-circular housing segments (28, 30)  of  generally  U-shaped  cross  section  which  enclose  the flanges,  and diametrically opposed sets of pivotally mounted toggle bolt assemblies (32) to facilitate quick connection and disconnection of the coupling.  The housing sidewalls (48, 50) and  the  flange  faces  (40,  42)  are  compatibly  tapered  to facilitate  face-to-face  flange  and  arcuate  alignment  of  the shafts.
Patent CA-2007423-A1 (CA)
Title: Hood-type garment
Inventor: MORANDINI ROSE P
IPC: A42B1/04
Filed: 1990-01-09
Abstract: A hood-type garment for enclosing the head and face for protecting hair and makeup during dressing, The garment is a mesh-type fabric and has a zipper, Velcro R or tape closure to facilitate egress and ingress, An elastic band is attached to the base of the hood, the band encircling the neck of the wearer to secure the hood about the head and face of the wearer.
Patent CA-2010309-A1 (CA)
Title: Statistical ab-block copolymers having improved properties, process for their manufacture and their use
Inventor: WOLPERS JURGEN
IPC: C08F297/04
Filed: 1990-02-19
Abstract: ABSTRACT OF THE DISCLOSURE          Statistical, unsaturated 2-block copolymers comprising 25 to 75% butadiene, 5 to 65% isoprene and 3 to 35% styrene and a process for their manufacture is disclosed.  The polymers vulcanise rapidly and possess high skid resistance under wet conditions combined with low abrasion.  They are especially useful for the manufacture of tyre treads and may be used for producing new tyres as well as for retreading old tyres.
Patent CA-2011833-A1 (CA)
Title: Novel polypeptide and production thereof
Inventor: NAKAHAMA KAZUO
IPC: C12N15/12
Filed: 1990-03-09
Abstract: Disclosed are (1) a polypeptide (I) including the following amino acid sequence (II) in a molecule thereof:     TyrAlaGluHisLysSerHisArgGlyGluTyrSerValCys AspSerGluSerLeuTrpValThrAspLysSerSerAlaIle AspIleArgGlyHisGlnValThrValLeuGlyGluIleLys ThrGlyAsnSerProValLysGlnTyrPheTyrGluThrArg CysLysGluAlaArgProValLysAsnGlyCysArgGlyIle AspAspLysHisTrpAsnSerGlnCysLysThrSerGlnThr TyrValArgAlaLeuThrSerGluAsnAsnLysLeuValGly TrpArgTrpIleArgIleAspThrSerCysValCysAlaLeu SerArgLysIleGlyArg (II) (2) a DNA sequence coding for the polypeptide described in (1), (3) a vector including the DNA described in (2), (4) a transformant transformed by the vector described in (3), and (5) a process for producing the polypeptide (I) which comprises cultivating the transformant described in (4) in a culture medium to produce and accumulate the polypeptide described in (1) in a culture. The polypeptide is useful as a reagent for studies relating to the differentiation, growth and survival of animal cells, and may also be useful as a drug.
Patent CA-2011975-A1 (CA)
Title: Method for producing the mwoi restriction endonuclease and methylase
Inventor: LUNNEN KEITH D
IPC: C12N1/21
Filed: 1990-03-12
Abstract: ABSTRACT      The present invention is directed to a method for cloning and producing the MwoI restriction endonuclease by      1) introducing the restriction  endonuclease gene from M. wolfel into a host whereby the restriction gene is expressed; 2) fermenting the host which contains the plasmid encoding and expressing the MwoI restriction endonuclease activity, and 3) purifying  the MwoI restriction endonuclease from the fermented host which contains the plasmid encoding and expressing the MwoI restriction endonuclease activity.
Patent CA-2013468-A1 (CA)
Title: Method and composition for reducing the permeability of a high-permeability zone in an oil reservoir
Inventor: LOCKHART THOMAS P
IPC: E21B43/22
Filed: 1990-03-30
Abstract: A method for reducing the permeability of a high-permeability zone in a high-temperature oil reservoir comprises:          -   preparing a gellable polymeric aqueous solution, operating on the surface under controlled conditions;          -   injecting said gellable solution into the oil reservoir through a  well;          -   moving the solution through the reservoir until it reaches and substantially fills the high-permeability zone to be treated; and -   gelling the solution in situ with consequent lowering of the permeability in said high-permeability zone, and is essentially characterised in that the gellable solution is an aqueous solution containing a Cr(III) ion cross-linking agent and a water-soluble organic polymer cross-linkable by the effect of said cross-linking agent, said solution being free or substantially free of  ligands     for the cross-linking agent and having a pH adjusted to a value within the range of 1.5 to 5.5, depending on the desired gelling time.
Patent CA-2013907-A1 (CA)
Title: Silicon nitride ceramics containing a metal silicide phase
Inventor: MATSUMOTO ROGER L K
IPC: C04B35/584
Filed: 1990-04-05
Abstract: 0919p (FF) Matsumoto and Rosenthal Case 1 ABSTRACT OF THE DISCLOSURE        A sintered silicon nitride ceramic product suitable for making cutting tools comprises (a) 20-98% by weight silicon nitride, (b) 1-80% by weight of a silicide of iron, cobalt or nickel and (c) 0.02-20% by weight of at least one oxide, nitride, or silicate of an element of IUPAC groups 2, 3, 4, 13 or the lanthanide series.  A method for making such a product is also disclosed.
Patent CA-2014819-A1 (CA)
Inventor: KIMURA ISAO
IPC: B41J2/16
Filed: 1990-04-18
Abstract: A substrate for an ink jet recording head comprises a support (1) and an electrothermal transducer provided on said support and comprising a heat-generating resistor member (2) and electrodes (3, 4) electrically connected to said heat-generating resistor member (2), wherein said heat-generating resistor member (2) is comprised of a complex compound comprising a metal boride, silicon and nitrogen.
Patent CA-2017043-A1 (CA)
Inventor: PETEGNIEF JACQUES
IPC: B22D11/06
Filed: 1990-05-17
Abstract: DISPOSITIF D'ALIMENTATION EN METAL LIQUIDE D'UNE INSTALLATION DE COULEE CONTINUE DE PRODUITS MINCES ET PROCEDE POUR SA MISE EN OEUVRE Abrégé Descriptif Ce dispositif comporte une lingotière de coulée continue de produits minces dont les parois définissent un espace de coulée 6 dont la section, au niveau de sortie du produit coulé de ladite lingotière, est allongée dans une direction correspondant à la largeur du produit coulé, et a une longueur égale à ladite largeur du produit. Il comprend une busette tubulaire horizontale 9, en communication avec au moins une tubulure d'amenée du métal 8, qui s'étend selon ladite direction, et comporte un ou des orifices 11, 18 de sortie du métal liquide situés dans sa partie inférieure et selon une configuration telle que le ou lesdits orifices s'étendent sur la longueur de la busette. Ladite busette est située au niveau prévu du ménisque du métal 14 dans ladite lingotière et, conformément au procédé selon l'invention, on règle, lors de la coulée le niveau du métal liquide pour que la busette soit partiellement immergée dans ledit métal. Fig. 1
Patent CA-2017578-A1 (CA)
Title: Embankment reinforcing structures
Inventor: RISI ANGELO
IPC: G06T11/00
Filed: 1990-05-25
Abstract: This invention relates to improvements in the control and stabilization of earthen or soil embankments comprising a gravity facing wall tied to and anchored by a grid or mesh extending into the embankment.  The gravity facing wall is comprised of facing wall units or blocks stacked in overlapping horizontal courses.          In particular an improved facing wall unit or block is provided featuring a projection formation extending longitudinally of the block in the upper surface and, in the lower surface, an offset recess of matching extent and configuration to the projection formation.  The projection formation further includes grid or mesh engaging  projections  which  penetrate  the  mesh  or  grid  when registered thereover.   A further recess or depression is also included in the upper surface of the facing wall unit or block and is of such an extent and configuration so as to confine therewithin the grid or mesh engaging projections and the grid or mesh when registered thereover.
Patent CA-2017925-A1 (CA)
IPC: H04J3/06
Filed: 1990-05-30
Abstract: Abstract of the Invention ELECTRONIC SYSTEMS AND EFFECTIVE REDUCTION OF ELECTROMAGNETIC INTERFERENCE ENERGY PROPAGATION FROM ELECTRONIC SYSTEMS           An electronic system includes at least one element which is operative in response to clock signal pulses, of less than a maximum frequency of occurrence, from a clock signal source.  A dither means is connected to the clock signal source for causing the frequency of occurrence to be varied such that electromagnetic radiation which accompanies the normal operation of the system is of a lesser interference effect than if the frequency of occurrence were substantially monotonous.
Patent CA-2019524-A1 (CA)
Title: Gasket for tight locked joints
Inventor: LAGABE ANDRE
IPC: F16J15/12
Filed: 1990-06-21
Abstract: Elastomeric sealing assembly (3) for connecting a male-ended tube to a fitting tube, in which assembly there are locking elements (E) presenting one end intended to bear against an internal surface of the fitting and one end intended to penetrate the external surface of the male end, is provided with means (21) for limiting the penetration of the locking element (E) into the external surface of the male end, these means (21) being situated at that end of the locking element (E) which is designed to penetrate the external surface of the male end. Application to the production of locked sealed joints. 
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Patent CA-2020227-A1 (CA)
Title: Elastically deformable bumper system
Inventor: DREWS TERENCE E
IPC: E02B3/26
Filed: 1990-06-29
Abstract: Abstract The present invention relates to an elastically deformable bumper for cushioning impact forces at a relatively rigid member. The bumper is comprised of a forward bumper wall member having an impact receiving surface at a first side thereof, and a support web which extends from a second side of the forward bumper wall member.  The support web terminates in a support web abutment surface which is adapted for engagement with a rigid member.  A bumper anchor aperture is provided for accommodating an anchor device to hold the bumper in position at the rigid member.  The bumper anchor aperture extends from the first side of the forward bumper wall member through the support web to the support web abutment surface.
Patent CA-2025267-A1 (CA)
Title: Multi-axis rotational distributing apparatus
Inventor: LEROY PAYNE
IPC: G05D7/00
Filed: 1990-09-13
Abstract: Multi-axis rotational polymeric mixture distributing apparatus includes a raw material supplying portion, a supporting portion, a raw material mixing portion, a polymeric mixture distributing portion, a polymeric mixture accepting portion and a control portion. The raw material supplying portion includes a plurality of reservoirs, each connected independently with the mixing portion. The supporting portion includes a plurality of driven frame members each with a large open central area being disposed between parallel spaced upstanding end sections and rotatably supported thereon, each being progressively smaller in size than the next larger frame member and disposed within the open central area thereof. Alternate frame members are rotatable about aligned axes with frame members therebetween rotatable about axes generally perpendicular thereto. The smallest frame member includes rotatable holding sections. The raw material mixing portion includes a movable mixing chamber with withdrawable deflectors mounted adjacent the smallest frame member. A piston is selectively movable within the mixing chamber along the length thereof when the deflector sections are withdrawn therefrom. The polymeric mixture accepting portion includes a profile member with a surface having a desired configuration positionable between the holding sections and securable therebetween. The control portion includes a programmable memory.
Patent CA-2027259-A1 (CA)
Inventor: KUBERASAMPATH THANGAVEL
IPC: A61L27/00
Filed: 1990-10-10
Abstract: A matrix for implantation in a mammalian host comprising biocompatible, mineral-free, insoluble Type-I bone collagen which may be allogenic or xenogenic to the host, and which, when implanted in the host, is biodegradable. The collagen is treated with a collagen fibril modifying substance such as acidified acetonitrile, chloroform, or dichloromethane, or by heating in an aqueous environment to a temperature of 37°-65°C. The treated material undergoes a change in morphology involving a significant increase in its surface area as measured by various methods. Under the scanning electron microscope the material has an "oyster shell" appearance with many pits and micropores.
Patent CA-2031746-A1 (CA)
Title: Formulated Medicines for Enhancing the Efficacy of Beta-Lactam Antibiotics in Prophylaxis and Treatment Against Infectious Disease Due to Pathogenic Bacteria
Inventor: GOTO SACHIKO
IPC: A61P31/04
Filed: 1990-12-07
Abstract: Lactoferrin can be used to increase the efficacy of beta-lactam antibiotics. There is a synergistic effect when lactoferrin is administered either simultaneous with or shortly before or after the administration of beta-lactam antibiotics. The dosage of lactoferrin administered is usually 0.5-100 mg/kg and preferably 1-10 mg/kg.
Patent CA-2036560-A1 (CA)
Title: Sealed portable alarm with internal cellular telephone
Inventor: PAPINEAU ROBERT
IPC: H04M11/00
Filed: 1991-02-18
Abstract: SEALED PORTABLE ALARM WITH INTERNAL CELLULAR TELEPHONE         Abstract of the Disclosure A  portable,   stand-alone  alarm  system which comprises  a  sealed  housing  having  a  first  sealed compartment in which is located a control alarm circuit and associated components of the control circuit.    A second compartment  is  provided  in which is  located a transceiver  system provided with  a telephone handset.          The second compartment has a door for access thereto and provided with a lock actuable by an authorized person only.    A cellular telephone system is provided in the second  compartment  and  has  a  transmitter  circuit,  a dialer circuit,  and a receiver circuit.   A digital key pad is secured to an exterior wall of the sealed housing for programming the control circuit and for authorization of the system by a designated user.    Temperature and intrusion sensing devices are provided  and communicate alarm signals to the control circuit so as to generate a local and/or a remote alarm signal condition.  The system can be used in areas where there is no electrical power or any telephone lines and because of its portability, can be  located anywhere  in a  room or  a plurality of systems can be located throughout a  large area  to be protected.
Patent CA-2037187-A1 (CA)
Title: Cyclopropachromen derivatives
Inventor: TATSUOKA TOSHIO
IPC: A61P25/28
Filed: 1991-02-27
Abstract: CYCLOPROPACHROMEN DERIVATIVES          ABSTRACT OF THE DISCLOSURE:       A cyclopropachromen derivative represented by formula (I):                             (I) wherein n represents an integer of 2 to 5; R1 and R2 inde-pendently represent a hydrogen atom or an alkyl group having from 1 to 5 carbon atoms, a phenyl group or an aralkyl group having 7 to 10 carbon atoms, or alternatively R1 and R2 form together with the nitrogen atom. to which they are attached, a morpholino group, a thiomorpholino group, a pyrrolidinyl group, a piperidinyl group, a homopiperidinyl group, a piperazinyl group, a homopiperazinyl group, an N-alkylpiperazinyl group, N-alkylhomopiperazinyl group, an N-hydroxyalkylpiperazinyl group or a pyrrolidonyl group or alternatively R1 and R2 form together with the nitrogen atom to which they are attached, and further a carbon atom to which said nitrogen atom is bound, a pyrrolitidinyl group; A1 and A2 independently represent a hydrogen atom, a hydroxyl group, a halogen atom or an optionally substituted alkoxy group, B1 and B2 independently represent a hydrogen atom, a hydroxyl group, a halogen atom or an optionally substituted alkoxy group; provided that where R1 and R2 both represent a hydrogen atom, A1, A2, B1 and B2 on the two benzene rings all represent a hydrogen atom or, otherwise, the two substituents on at least one benzene ring have the meaning other than a hydrogen atom, and a pharmaceutically acceptable salt thereof are disclosed.  The compounds are useful as improving and treating agents for cerebral organic disorders and psychic function disorders.
Patent CA-2044160-A1 (CA)
Title: Source material delivery system
Inventor: MEIER FREDERICK U
IPC: B65G53/50
Filed: 1990-10-11
Abstract: A system (18) for repeatedly supplying a predetermined quantity of solid particulate material, e.g. solid, spherical silicon particles (92), to a location (19) remote from the area where the particulate material is stored. The system (18) includes a container (90) for storing solid particulate material (92), a receiving chamber (106) coupled with the container (90) and sized and configured to admit only a predetermined quantity of particulate material (92) from the container (90), and means (134, 136, 138) for applying at least one stream of a pressurized fluid so as to entrain and transport said predetermined quantity of particulate material (92) from the receiving chamber (106) to the remote location (19).
Patent CA-2045045-A1 (CA)
Title: Process and catalyst for preparing organic carbonates
Inventor: DELLEDONNE DANIELE
IPC: C07C68/00
Filed: 1991-06-20
Abstract: Organic carbonates and cyclic organic carbonates are prepared by reacting an aliphatic or cycloaliphatic alcohol, or, respectively, an aliphatic diol, with carbon monoxide and oxygen, by operating in the presence of a complex catalyst of cobalt with organic ligands bearing one or more oxygen functional groups, as electron donors.
Patent CA-2046613-A1 (CA)
Title: Process and device for braking sheets, in particular sheets of paper or cardboard, to be deposited on a pile
Inventor: SCHAFFNER GEORG
IPC: B65H29/12
Filed: 1990-12-11
Abstract: Abstract:     Method and apparatus for decelerating sheets, particularly sheets of paper or board, to be deposited on a stack To decelerate sheets transported on conveyors at a dis-tance from one another so that they can be stacked without diffi-culty, it is known to use elements that engage in the region of the rear edges of the sheets.  At very high operating speeds, the sheets can thereby turn on edge and unwanted markings can occur, particularly on delicate papers.          To avoid this, the sheets (8) are decelerated by clamp-ing them between clamping elements (28, 33, 34) with synchronously rotating clamping zones which are temporarily applied to the sheets (8) during one rotation, whereby - the clamping zones have the inlet speed of the sheets (8) when applied to the sheets, - the speed of the clamping zones is subsequently reduced so slowly to the desired delivery speed of the sheets (8) that the frictional engagement with the sheets (8) is maintained, - the sheets (8) are thereafter unclamped, and - the clamping zones are moved out of the inlet plane before the following sheets (8) arrive, and - are accelerated again to the inlet speed before the following sheets (8) are clamped.     (Figure 5)
Patent CA-2046655-A1 (CA)
Title: Conveyor
Inventor: RICHMOND ALLAN
IPC: B65G37/00
Filed: 1990-02-01
Abstract: The present invention provides a conveyor (1) suitable for use in conveying bulk material (2), especially for the elevation of such material. The conveyor (1) comprises an endless carrier belt (3) and an endless bulk material engagement (4) having a plurality of paddles (10) with a shape corresponding to the cross section of a channel (7) defined by the carrier belt (3), so that the paddles (10) have a close fit with the sides (3a) and base of the channel (7). At least one of the carrier belt (3) and the engagement means (4) is driven and drive is transferred therebetween by contact between the paddles (10) and the channel (7) to the other.  The belt (3) and the connector means (8) of the engagement means (4) are formed and arranged to follow a substantially identical path in a vertical plane along the conveying path where said belt (3) and engagement means (4) interengage whereby movement of the paddles (10) and belt (4) is maintained in substantial synchronism. With a conveyor of the invention uphill and downhill conveying of a wide variety of bulk materials (2) over steep inclines can be effected with a high load capacity.