baber/WOPTO huggingface dataset:
Patent CA-2061941-A1 (CA)
Title: Making glass articles with defect-free surfaces
Inventor: DUMBAUGH WILLIAM H JR
IPC: C03C17/02
Filed: 1992-02-27
Abstract: Abstract of the Disclosure The present invention is directed to a method for making a glass article having at least one surface which is essentially defect-free and is at least equivalent in smoothness to a polished surface.  The method generally comprises the steps of:     (a)  bringing into contact with each other a body of a glass which is relatively insoluble in an acid solution and a body of a glass consisting essentially, expressed in terms of cation percent on the oxide basis, of 70-85% B2O3, 7-20% BaO, 0-10% PbO, 0-12% R2O, wherein R2O consists of Li2O+Na2O+K2O, 3-15% PbO+R2O, said glass from its setting point to room temperature having a linear coefficient of thermal expansion within about 5x10-7/°C of that of said relatively insoluble glass, a strain point within 10°C of the strain point, of said relatively insoluble glass, a liquidus temperature below that of said relatively insoluble glass, a viscosity at the forming temperature at least ten times that of said relatively insoluble glass, and being at least 100 times more soluble in an acid solution than said relatively insoluble glass, said contact being at a tempera-ture wherein at least said more soluble glass is in fluid form to produce a laminate having an interface between said glass bodies which is essentially free of defects;    (b)  cooling said laminate to solidify each glass present in fluid form; and thereafter (c)  contacting said laminate with an acid solution to dissolve away said more soluble glass whereby the surface of said relatively insoluble glass from which said more soluble glass has been removed is rendered essentially defect-free and is at least equivalent in smoothness to a polished surface.
Patent CA-2063786-A1 (CA)
Inventor: SPARKES ANTHONY H
IPC: B42F13/26
Filed: 1992-03-23
Abstract: A ring binder locking mechanism has a pair of toggle blades 12 abutting edge to edge with one another within an elongate spring housing 10. A booster trigger 16 is mounted at each end of the housing for locking the blades 12 and their half rings 14 in a closed position. The trigger is of one-piece metal construction and includes a pair of locking arms 32 engagable with the blades 12to lock them with the half rings closed.
Patent CA-2065558-A1 (CA)
Inventor: NICHOLSON DAVID J
IPC: H04B10/27
Filed: 1992-04-08
Abstract: A communications system is provided having SONET communications channels extending between first and second locations.  The channels include pairs of forward and reverse channels for carrying traffic in normal operation between first and second locations and a protection channel for carrying traffic of one channel in the event of a fault.  Each pair of forward and reverse channels is provided on a shelf at each location, the shelves having the same relative position at both locations and the protection channel is provided on a protection shelf.  The protection channel includes, between the first and second locations, a forward optical link and a reverse optical link and at each of the first and second locations, a single protection loop, coupling the forward and reverse optical links, that forms the protection channel.  The protection loop is used to provide, at each location, a local virtual protection loop for indicating the protection requirements and status of the respective location, and a remote virtual protection loop for indicating the protection requirements and status of the location remote from the respective location.   The local protection loop is provided by inserting K1 and K2 bytes into E1 slots of STS-1 #25 and #2, respectively.  The remote protection loop is provided by inserting K1 and K2 bytes into E1 slots of STS-1 #26 and #3, respectively.
Patent CA-2066819-A1 (CA)
Inventor: WANLASS MARK W
IPC: H01L31/0687
Filed: 1992-04-22
Abstract: IMPROVED MONOLITHIC TANDEM SOLAR CELL                 Abstract of the Disclosure A single-crystal,  monolithic,  tandem,  photovoltaic solar cell is described which includes (a) an InP substrate having upper and lower surfaces,  (b) a first photoactive subcell on the upper surface of the InP substrate,  (c) a second photoactive subcell on the first subcell; and (d) an optically transparent prismatic cover layer over the second subcell.   The first photoactive subcell is GaInAsP of defined composition.  The second subcell is InP.  The two subcells axe lattice matched.
Patent CA-2067386-A1 (CA)
Title: Electrodeposition coatings containing blocked tetramethylxylene diisocyanate
Inventor: DEBROY TAPAN K
IPC: C08G18/64
Filed: 1990-09-21
Abstract: An electrodepositable cathodic resin is disclosed. The resin is the reaction product of a polyepoxide amine adduct and a crosslinking agent which is polyol modified tetramethylxylene diisocyanate blocked with alcohol or caprolactam. The resulting resin results in a nonyellowing film which is very smooth.
Patent CA-2068423-A1 (CA)
Title: Toilet bar composition made with polymeric lyotropic liquid crystals
Inventor: EL-NOKALY MAGDA
IPC: C11D3/38
Filed: 1990-11-16
Abstract: A smooth, polymer containing personal cleansing toilet bar made with polymeric lyotropic liquid crystals.
Patent CA-2073407-A1 (CA)
Title: Dental material curing apparatus
Inventor: PATTEN RICHARD L
IPC: A61C13/15
Filed: 1992-07-09
Abstract: Light emitting apparatus (10) for curing photocurable dental material includes a handpiece (12) having a housing (26), a depending handle (28) and a detachable light guide (48).  The light guide (48) is received in a head (30) connected to the housing (26). Rotational movement of the head (30) relative to the housing (26) also rotatably moves the light guide (48) so that the guide (48) may be turned by the same hand of the user that is grasping the handle (28) for improved manipulation and user comfort.  A base (14) of the apparatus (10) includes an upright pedestal (106) that houses a device (102) for determining the intensity of light provided by the light guide (48).
Patent CA-2076504-A1 (CA)
Title: Radiation curable composition with high temperature oil resistance
Inventor: BIELAT RICHARD A
IPC: C08F299/06
Filed: 1992-08-20
Abstract: Radiation curable composition with high temperature oil resistance Abstract of the Disclosure The present invention relates to a radiation curable composition with high temperature oil resistance comprising (1) a (meth)acrylated urethane component comprising (a) the reaction product of hydroxyethyl(meth)acrylate and a monomeric or polymeric aromatic isocyanate, (b) hydroxyethyl(methy)acrylate and optionally (c) a (meth)acrylated prepolymer of a monomeric or polymeric aromatic isocyanate and at least one polycaprolactone polyol with a functionality > 2 and a molecular weight in the range of about 500 to about 3000, or (d) a (meth)acrylated prepolymer of a monomeric or polymeric aromatic isocyanate and at least one polyether polyol with a functionality > 2 and a molecular weight in the range of about 90 to about 7000, or a mixture of (c) and (d), (2) an aromatic multifunctional epoxy (meth)acrylate having a molecular weight of less than about 1000, (3) at least one free radical polymerizable monomer and (4) a free radical photoinitiator, which composition exhibits at 25°C (i) a Tg greater than about 45°C, (ii) an elongation of greater than about 3%, (iii) a tensile strength of greater than about 9 N/mm2 and (iv) a shear storage modulus of greater than about 30 N/mm2.
Patent CA-2077264-A1 (CA)
Title: Method of characterisation
Inventor: JEFFREYS ALEC J
IPC: C12Q1/68
Filed: 1992-08-26
Abstract: A B S T R A C T                  METHOD OF CHARACTERISATION            A method of characterising a test sample of genomic DNA which method comprises amplifying a tandemly repeated region, comprising more than one type of repeat unit? as far as internal repeat units of a specific type so as to generate a set of amplification products which identify the relative positions of the internal repeat emits within the tandemly repeated region, and separating the set of amplification products to provide a sample code.  The sample codes are suitable for computerised storage on, and retrieval from, a database.  The invention also provides a novel method for the detection of diagnostic base sequences in one or more nucleic acids contained in a sample.
Patent CA-2078814-A1 (CA)
Inventor: EFFLAND RICHARD C
IPC: A61K31/4439
Filed: 1992-09-22
Abstract: This invention relates to substituted pyridinylamino-1H-indoles, 1H-indazoles, 2H-indazoles, benzo[b]thiophenes and 1,2-benzisothiazoles of the formula (See Formula I) wherein Q is S, N or NR2;      Y is CH, N or NR2;      R1 is hydrogen, loweralkyl, loweralkynyl, loweralkenyl, arylloweralkyl, loweralkoxycarbonylaminoloweralkylcarbonyl, arylloweralkoxycarbonyl-aminoloweralkylcarbonyl, aminoloweralkylcarbonyl, loweralkoxycarbonyl or acyl;      R2 is hydrogen or loweralkyl;      R3 is hydrogen or loweralkyl;      X is hydrogen, loweralkyl, halogen; and n is 0 or 1; or a pharmaceutically acceptable acid addition salt thereof. The compounds of this invention are useful in the treatment of memory dysfunctions characterized by a chalinergic deficit such as the type associated with Alzheimer's disease and other memory disorders. Compounds of this invention also have utility as modulators of neurotransmitter function such as noradrenergic and serotonergic and as such are useful for treatment of depression and personality disorders such as obsessive compulsive disorders. Additionally, compounds of this invention are useful as topical antiinflammatory agents for the treatment of various dermatoses.
Patent CA-2079229-A1 (CA)
Title: Protease specifique de l'ubiquitine
Inventor: VARSHAVSKY ALEXANDER J
IPC: C12N5/10
Filed: 1991-05-08
Abstract: Protéase spécifique de l'ubiquitine, laquelle clive l'ubiquitine provenant de n'importe quelle protéine ou de n'importe quel peptide auquel l'ubiquitine est jointe, et gène codant la protéase. La protéase clive spécifiquement la liaison peptidique dans une fusion d'ubiquitine à une protéine ou a un peptide entre le reste d'acides aminés à terminaison carboxyle d'une fraction d'ubiquitine et le groupe alpha-amino de n'importe quelle protéine ou de n'improte quel peptide de non-ubiquitine auquel l'ubiquitine est jointe. On peut utiliser des vecteurs d'expression recombinés contenant une séquence d'ADN codant la protéase spécifique de l'ubiquitine afin de transformer des cellules permettant la production de la protéase ou afin de produire la cellule ayant la capacité de procéder à une désubiquitinisation protéolytique, in vivo, de fusions d'ubiquitine coproduites par la cellule. On peut également isoler la protéase et l'utiliser afin de désubiquitiner des fusions d'ubiquitine iota vitro). Pour les protéines ou les peptides dont on peut inhiber ou modifier l'activité fonctionnelle par la présence d'une fraction d'ubiquitine, on peut utiliser cette fraction en tant qu'inhibiteur (ou modificateur) temporaire de l'activité d'une protéine ou d'un peptide, la protéase spécifique de l'ubiquitine étant utilisée pour rétablir, par désubiquitinisation, l'activité originale de la protéine ou du peptide.
Patent CA-2080116-A1 (CA)
Title: Automotive exhaust system
Inventor: BAINBRIDGE DAVID W
IPC: F01N13/14
Filed: 1992-10-07
Abstract: Abstract of the Disclosure An automotive exhaust system incorporating an insulated exhaust pipe.   The insulation is selected so that it is very efficient at relatively low temperatures, thereby allowing the exhaust  gases  to  reach  the  light-off  temperature  of  the catalytic converter in a short time, and less efficient at high temperatures, thereby maintaining the temperature of the exhaust gases below the level at which aging of the catalytic converter increases.
Patent CA-2082133-A1 (CA)
Inventor: SHEN PAUL
IPC: H04N7/36
Filed: 1992-11-04
Abstract: A multiple serial access memory is provided. A dynamic random access memory (30) is addressed to input data thereto and output data therefrom. Rows of data are output from the array (50) in response to address signals (34, 36, 38) provided thereto. A plurality of serial output ports (44, 46, 48) is coupled to the output of the array for selectively latching different rows of data output from the array. The serial output ports (44, 46, 48) are clocked to output the latched data therefrom. In an illustrated embodiment, each of the serial output ports contains a shift register (62, 64, 66, ... 68) having a length equal to the width of the memory array (30). The shift register is responsive to a first timing signal (42, 52) for latching a row of data from the array (30). A second timing signal actuates the shift register to shift a row of latched data. A serial access selector (70) coupled to the shift register outputs a selected portion of the shifted data from the serial output pork. The memory has particular application as the frame store for a motion compensated interframe image coding/decoding system.
Patent CA-2083494-A1 (CA)
Inventor: DUMAIS MAXINE M
IPC: C08B37/00
Filed: 1991-06-06
Abstract: ABSTRACT: Derivatized agarose products and a process for their preparation. The process of the invention can be carried out by either the steps of: A. forming a solution of a derivatized agarose in an aqueous medium or in a C2-C5 polyol containing from 1 to 15% by weight of water, B. contacting the above solution with a water-miscible solvent which is a C1-C4 alkanol or acetone, when the solution is aqueous, or cooling the solution when the solution comprises a C2-C5 polyol, to form a precipitate comprising a first derivatized agarose product, C. isolating the precipitate from the solution, and, optionally D. contacting the solution obtained in step C with an aqueous salt solution in amount sufficient to produce a precipitate comprising a second derivatized agarose product, or by the steps of: A. forming a solution of an agarose in an aqueous medium or in the C2-C5 polyol, B. contacting the above solution as in step B above to form a precipitate, C. isolating the precipitate from the solution, and D. reacting the precipitate with a derivatizing agent to produce a first derivatized agarose product, and, optionally, E. contacting the solution resulting from step C with a quantity of an aqueous salt solution in amount sufficient to produce a second precipitate, and F. reacting the precipitate with a derivatizing agent to produce a second derivatized agarose product.
Patent CA-2084830-A1 (CA)
Inventor: MARTIN OLIN H
IPC: B05B7/04
Filed: 1992-12-08
Abstract: A multiple component spray gun for spraying plural components is claimed useful in applications involving polyurethane foams, elastomeric coatings, paints, thermosetting resin formulations, and the like.  The ejected components are atomized under high or low pressure via a novel multiple mixing action.  The gun design allows for an exchange of the mixing chamber components without the need to dismantle the gun body.  The concept of the spray gun involves a gun body and a nozzle, a rotatable ball passage valve including a ball with internal porting in a general Y-configuration with two opposing inlet passages and a cylindrical outlet bore with the ball positioned in a totally enclosed resilient resinous packing material.  The preferred packing material if formed from polytetrafluoroethylene commonly referred to under the trademark Teflon.  The A and B components are communicated across the passages of the Y-configuration prior  to the novel multiple mixing action and material back flow is virtually eliminated.  An air purge flow through the ball and nozzle is provided when spraying is completed.  The ball valve is rotated by means of a double acting pneumatic cylinder and both the air cylinder and ball reciprocate and rotate through an appropriate linkage;
Patent CA-2085569-A1 (CA)
Inventor: ST LOUIS DANIEL M
IPC: C01B5/02
Filed: 1992-12-16
Abstract: An on-line method and apparatus for dislodging deposits from the distributors (12) in an adsorption tower (10) thereby cleaning the tower (10) by causing a surge in the fluid to dislodge the blocked openings (14) of the distributors (12).
Patent CA-2089204-A1 (CA)
Inventor: LUTTER HEINZ-DIETER
IPC: C08G18/65
Filed: 1993-02-10
Abstract: The invention relates to a process for the preparation of CFC-free, flexible polyurethane foams or molded foams by reacting A)     liquid polyisocyanate mixtures containing bonded urethane groups and having a content of NCO groups of from 20 to 30% by weight, these mixtures themselves being prepared by reacting a mixture of diphenylmethane diisocyantes and polyphenyl-poly-methylene polyisocyanates (crude diphenylmethane diisocyanate) with a polyether-polyol mixture, having a hydroxyl number of from 120 to 25, of at least one polyoxypropylene glycol and at least one trifunctional polyoxypropylene-polyoxyethylene glycol having a content of ethylene oxide units of from 90 to 10% by weight or by reacting 4,4'-diphenylmethane diisocyanate (diphenylmethyl diisocyanate) or an diphenylmethane diisocyanate isomer mixture with said polyether-polyol mixture to give an NCO-containing quasi-prepolymer and diluting this quasi-prepolymer with crude diphenylmethane diisocyanate, with B)    relatively high-molecular-weight polyhydroxyl compound, and, if desired, C)    low-molecular-weight chain extenders and/or cross-linking agents, in the presence of D)    blowing agents, E)    catalysts and, if desired, F)    assistants and/or additives, and to the polyisocyanate mixtures (A) which have been modified by means of urethane groups and can be used according to the invention.
Patent CA-2090750-A1 (CA)
Title: Enzymic diglyceride removal
Inventor: MOORE HARRY
IPC: C12P7/64
Filed: 1993-02-24
Abstract: F 7071 (R) ABSTRACT            The invention concerns a process for the enzymic removal of diglycerides from glyceride mixtures. Herefore, the glyceride mixture is contacted with an enzyme specific for the conversion of diglycerides. This contact is performed in an aqueous emulsion of the diglycerides, wherein the droplet size of the dispersed phase is less than 100 µm.
Patent CA-2093651-A1 (CA)
Inventor: GANGEMI DONALD C
IPC: B65H18/20
Filed: 1991-09-30
Abstract: A method for effecting a set change in a winder (14) for a papermaking machine, comprises skip-slitting the paper web (W) across the width of the web (W) transversely to the direction of web travel in the winder (14). An adhesive stripe (44, 44') is appli-ed to the web (W) on either side of where the skip-slit (50) is located. The skip-slit (50) and application of the glue is done at a location upstream of the winder (14) to avoid the problems associated with mounting and operating such equipment beneath the winder (14). The paper web (W) is severed by advancing the skip-slit (50) to a position near the 10 o'clock position over the sur-face of a first winder drum (12) where the web (W) is halted and the wound paper roll (R) is urged off its support on the first win-der drum (12) to thereby increase the tension in the web between the wound roll (R) and web (W) supported on the first winder drum (12) to sever the web. The adhesive stripes (44, 44') on either side of the severance are then applied to the wound roll (R) and a new core, and the process is repeated.
Patent CA-2096176-A1 (CA)
Title: Variable length decoder
Inventor: KUSTKA GEORGE J
IPC: H04L9/18
Filed: 1993-06-16
Abstract: Apparatus for decoding a stream containing codes of a variable length code (VLC) takes advantage of the fact that a tree representation of the VLC canbe pruned to leaves that each represent a complete binary tree. Combinational circuits or ROMs are then employed to decode the pruned tree, thereby substantially reducing the complexity of decoding a VLC. In one embodiment the decoding problem is partitioned into segments by considering a few bits at a time, starting with the most significant bits. Each segment either outputs a valid code or informs the next segment that the decoding process is incomplete and provides information to assist the next segment in its decoding effort. In applications where the VL code can be selected for greater efficiency of the decoder, the offered VL code can be restructured to minimize the number of k-nodes, to thereby minimize the pruned tree, and to concomitantly minimize the sizes of the ROMs in the decoder.
Patent CA-2096628-A1 (CA)
Title: Clock phase alignment
Inventor: WIGHT MARK S
IPC: H04L7/033
Filed: 1991-11-13
Abstract: A phase error integrator (11) for determining  the phase er-ror between a data signal and a clock signal frequency locked to the data signal has a data input and a clock input.  In one em-bodiment the phase error integrator (11) is formed as two func-tional components, namely a phase error detector (20) and an in-tegrator chain (21). The phase error detector (20) sends to the integrator  (21) one of two output signals (NAR, NAL) depend-ing on whether the phase error is positive or negative. The inte-grator chain has a number of outputs (ERR0-ERR13) the first half of which initially have a binary 1 and the second half of which initially have a binary 0.  Depending on which output sig-nal arrives from the phase error detector the binary 1's shift right or the binary 0's shift left.  The integrator may be combined with a delay block (15) connected to the outputs of the  integrator chain (21).  The data signal is fed to the delay block (15) and a delayed data output signal is obtained which is connected to the data input of the phase error integrator (11). The delay block (15) delays the data signal until there is concordance between the phase of the clock and delayed data signals.
Patent CA-2097414-A1 (CA)
Title: Dimerization and/or dehydrogenation of alkanes
Inventor: DURANTE VINCENT A
IPC: C07C2/82
Filed: 1993-05-31
Abstract: ABSTRACT      Barium peroxide oxidizer, together with a transition metal from Group I, III, IV, V, VII or VIII or compound thereof is used as stoichiometric reagent in the oxidative dimerization of hydrocarbons having three or four carbon atoms.  Barium peroxide oxidizer, together with a transition metal from Group I, III, IV, V, VI, VII or VIII or compound thereof is used as stoichiometric reagent in the dehydrogenation of hydrocarbons having three or four carbon atoms.            DRJ0617a.drj
Patent CA-2100348-A1 (CA)
Title: Colour television signal processing
Inventor: STEINBERG VICTOR
IPC: H04N9/78
Filed: 1992-11-16
Abstract: A colour television decoder or other signal processor has a gate controlling the passage of a notch filtered chrominance signal. A  filter circuit produces a further chrominance signal which serves as the control signal for the gate.
Patent CA-2100983-A1 (CA)
Title: Shelf stable compositions containing acetoacetate functional polymer and polyformal
Inventor: BORS DANIEL A
IPC: C08L101/02
Filed: 1993-07-21
Abstract: ABSTRACT OF THE DISCLOSURE       An air-curing composition is disclosed which contains an acetoacetate functional polymer and an end-blocked polyformaldehyde chain. The composition is stable to reaction until the formaldehyde is released from the polyformaldehyde chain.
Patent CA-2102920-A1 (CA)
Title: Automatic injectors
Inventor: WILMOT JOHN G
IPC: A61M5/20
Filed: 1992-05-11
Abstract: An automatic injector is disclosed having a body (1), a medicament chamber (19) defined in the body, a needle (11) held in a sheathed position within the body, releasable drive means (4) which when released drives the needle from its sheathed position to an unsheathed position, and expulsion means (5, 10) for discharging the medicament through the needle (11), characterised in that seal means (12) is provided at the forward end of the medicament chamber (19), and in that the expulsion means (5, 10) has an expulsion element (10) and the needle (11) is movable forwards in a seal-breaking phase of movement relative to the expulsion element (10) upon activation of the injector so as to pierce the seal means (12). Thus it is not the entire expulsion means (5, 10) plus needle (11) which moves forward to break the seal (12) and vent the medicament chamber (19), but only the needle (11).