baber/WOPTO huggingface dataset:
Patent CA-2067856-A1 (CA)
Title: Opening structure for wedge-shaped pie carton
Inventor: COTE RAYMOND A
IPC: B65D5/20
Filed: 1992-05-01
Abstract: In accordance with the present invention, a carton for containing and protecting a single, wedge-shaped piece of dessert-type pie is provided. The carton comprises generally parallel, triangular top and bottom panels each having a base edge and converging side edges. A trapezoidal rear wall is foldably coupled to the base edges and extends between the top and bottom panels. An inner side wall panel is foldably coupled to each of the converging edges of the bottom panel and extends generally straight upwardly therefrom. An outer side wall panel is foldably connected to each of the converging edges of the top panel and extends generally straight downward therefrom. The outer side panels are closely adjacent to, overlying and affixed along one edge to the inner side wall panels. Each outer side wall panel has an opening structure comprised of a generally central, deflectable, finger-receiving opening tab and a line of weakness generally collinear with the opening tab. The line of weakness includes two spaced lines of intermittent incisions which diverge from said opening tab at an angle with respect to one another in the direction of the ends of said outer side wall panels. The invention also encompasses a flat blank for forming into the carton and another embodiment wherein the opening structure includes a generally central, finger-operated opening edge and lines of weakness extending from the opening edge.
Patent CA-2069426-A1 (CA)
Title: Snoring prevention device
Inventor: TRUFFER ERNEST
IPC: A61F5/56
Filed: 1991-09-30
Abstract: Abstract A device for preventing snoring stops pharyngeal snoring by making the jaw (7) and consequently the base of the tongue (4) project forwards thereby creating an adequate opening of the pharyngeal canal (5). The device also prevents velar snoring by holding the mouth closed by means of hooks (11) positioned both towards the upper dental arch and towards the lower dental arch.
Patent CA-2070390-A1 (CA)
Inventor: BUCHANAN CHARLES M
IPC: C08B3/06
Filed: 1991-03-13
Abstract: Disclosed is a process for preparing cellulose esters utilizing an acyl anhydride and trifluoroacetic anhydride as an impelling agent. The invention includes formation of a cellulose triester optionally followed by a hydrolysis step. Additionally, a cellulose ester with a degree of substitution of less than substantially 3 can be prepared directly by the additional use of trifluoroacetic acid.
Patent CA-2071708-A1 (CA)
Inventor: GATES STEPHEN F
IPC: H04S3/00
Filed: 1992-06-19
Abstract: A audio surround system particularly arranged for use in a theater provides the enhanced ambience and wide sound image  advantages  of a  stereo enhancement  system  (SRS system) having directivity servos.  A stereo enhancement system known as the "SRS" enhancement system enables a pair of relatively closely spaced speakers to provide a wide sound image lacking in any apparent point source and having enhanced directivity.  A first SRS system (10) is modified for  use  with  a  set  of  front  speakers  (16,22,26)  by increasing speed of its directivity servos (80), minimizing "pumping" caused by the increased directivity servo speed, increasing  its  threshold,  and  providing  a  bleed  for minimizing reverberation effect.  A similar SRS system (34) drives a set of rear speakers (40,46,50) and is differently modified to eliminate certain high pass filters (86,110), increase speed of its directivity servos (80), and to feed only ambience signals to left and right rear speakers (40,46).  Center sound, the sum signal from the rear SRS system (34), is fed to a sub-woofer (50).
Patent CA-2071798-A1 (CA)
Title: Frictional force transmitting device used in vacuum
Inventor: TAMURA HIDEKI
IPC: F16D69/00
Filed: 1992-06-22
Abstract: In a conventional frictional force transmitting device used in a vacuum, a problem has arisen when the device performs a sliding action over a certain distance, that is, its frictional force suddenly drops, which makes it impossible for the device to fulfill a desired function of braking. The above-mentioned problem in the frictional force transmitting device used in a vacuum for performing the function of braking, transmitting a frictional force, and effecting acceleration or deceleration, can be solved by improving the device, thai is, by means of making its two opposing frictional elements so as to be selectively pressed against each other, in which one of the frictional elements is made of metal or of non-metallic materials and the other made of organic frictional materials, wherein the one of the frictional element made of metal or nonmetallic materials has surface roughness coarser than 3 microns in maximum height(Rmax) and is coarser than the other made of organic frictional materials.
Patent CA-2074590-A1 (CA)
Title: Process for the production of high affinity anti-hapten antibodies and composition for the determination of haptens
Inventor: STENZEL ROSWITH
IPC: G01N33/53
Filed: 1992-07-24
Abstract: ABSTRACT         The  invention  relates  to  a process  for  the production of high-affinity anti-hapten antibodies and to a composition for the determination of haptens with the aid of these antibodies.     The process for the production of these high-affinity anti-hapten antibodies is characterised in that in a first step an animal is immunised several times with a hapten-protein conjugate and in the second step the animal is immunised several times with a mixture of up to three  hapten-protein conjugates,  the conjugates  con-taining the same hapten, but different proteins.
Patent CA-2076805-A1 (CA)
Title: Encoder/decoder for information signal
Inventor: HORI AKIHIRO
IPC: H04N7/081
Filed: 1992-08-25
Abstract: ABSTRACT     An encoder/decoder can insert and demodulate an information signal without affecting a video signal, the information signal being not analyzed, modified and deleted easily.  The non-inverted  and inverted information signals are inserted into two horizontal lines having a strong correlation in the same field or different fields separated by at least one field of the video signal.  A difference of the inserted information signals is obtained by a combination of a delay circuit and a subtracter.  Field difference signals Sx and Sy are applied to a band pass filter and are generated by a PSK generation circuit.  Generated output signals Qx and Qy are converted into unit information by a majority decision logic circuit and are stored in a memory. A unit information group consisting of a predetermined number of stored bits is used to generate the meaningful information. The inserted information signal has a low level and is inserted in the video period and the unit information is generated by the field difference.  Thus, the information signal cannot be analyzed, modified and deleted easily.
Patent CA-2082754-A1 (CA)
IPC: F04D25/02
Filed: 1992-11-12
Abstract: An improved vapor recovery system for use in a fuel dispensing arrangement is disclosed employing two concentrically arranged hoses.  The inner hose includes a turbine disposed therein which rotates in response to fuel flowing therethrough.  The outer hose includes a turbine which is preferably magnetically coupled to the turbine included within the inner hose.   Rotation of the turbine in the inner hose causes rotation of the turbine in the outer hose and rotation of the turbine in the outer hose creates a vacuum which recovers vapors from the fuel being dispensed.
Patent CA-2085517-A1 (CA)
Title: Touch point identification for automatic clutch controller
Inventor: LIU CHIA-HSIANG
IPC: B60W10/11
Filed: 1992-12-16
Abstract: This invention provides automatic and reliable determination of the touch point of a clutch controlled by an automatic clutch actuation controller.  This invention determines the touch point while idling the engine, with the transmission in neutral and an inertial brake applied.          The clutch actuation controller engages the clutch so that the measured transmission input speed matches a reference speed signal preferably between 40% and 60% of the idle speed.    This  reliably  provides  the  degree  of  clutch engagement at a small torque matching the braking torque.          When the transmission input speed is within a predetermined amount of the reference speed signal,  such as 4%, this invention determines the clutch touch point corresponding to the degree of clutch engagement.  This degree of clutch engagement may be a clutch position signal or a clutch pressure signal produced by an existing sensor used in the automatic clutch control.  If no measured clutch engagement signel is available, this degree of clutch engagement may be the clutch engagement signal used to control the degree of clutch engagement.   The touch point  is  set  as the difference between this degree of clutch engagement for the small torque and a clutch touch point offset.
Patent CA-2087192-A1 (CA)
Title: Process for electrochemical dissolution of semiconductors
Inventor: TUTTO PETER
IPC: H01L21/3063
Filed: 1991-07-11
Abstract: The invention relates to a process for the electrochemical dissolution of a semiconductor comprising contacting said semiconductor with an electrolyte suitable for its anodic dissolution and applying alternately anodic and cathodic direct currents to the interface of said semiconductor with said electrolyte such that the progress of the electrochemical dissolution is determined exclusively by the charge applied in the anodic process. The invention relates further to a process for the determination of a semiconductor characteristic varying with the depth in a semiconductor, as a function of depth, comprising contacting said semiconductor with an electrolyte suitable for its anodic dissolution, applying alternately anodic and cathodic direct currents to the interface of the semiconductor with said electrolyte such that the progress of said electrochemical dissolution is determined by the charge applied in the anodic phase, and simultaneously measuring a parameter proportionate with said semiconductor characteristic to be determined.
Patent CA-2088251-A1 (CA)
Title: 1-4-dihydropyridine derivatives
Inventor: STERK GEERT J
IPC: C07D211/90
Filed: 1991-07-31
Abstract: Compounds of general formula (1) wherein the substituents and symbols have the meanings as given in the specification, are new compounds with marked cardiovascular activity.
Patent CA-2089139-A1 (CA)
Inventor: BOULAIN JEAN-CLAUDE
IPC: C12N15/09
Filed: 1993-02-09
Abstract: ABSTRACT OF THE DISCLOSURE     Complex  hybrid  proteins  comprising  the  light chains  and the variable regions and certain constant domains  of  the  heavy  chains  of  immunoglobulins  and another homo- or heterodimeric protein,  a method for preparing  them,  as  well  as  their  applications  as diagnostic agent, as agent intended for therapeutic use or as reagent which can be used in medical imaging.        The     hybrid protein of the type comprising an immunoglobulin fragment fused with another protein P, consists of a complex hybrid sequence comprising:          ? a basic unit U consisting of:       ? two different peptide chains SU1 and SU2, SU1 comprising the variable and constant regions of a light immunoglobulin chain and SU2 comprising at least the variable  regions  and  the  CH1  domain  of  a  heavy immunoglobulin chain, the      peptide chains SU1 and SU2 are  bound  to  each  other  by means  of  at  least  one disulphide bridge and ? at least one functional fragment of one of the two subunits of a dimeric protein P, fused via its N-terminal end to one of the peptide chains SU1 or SU2, ? which basic unit U is associated with another basic unit U', which is identical or different from the unit U, by means of the protein P subunits or a fragment thereof.
Patent CA-2092066-A1 (CA)
Title: Seating furniture in plastic material, of which the decoration of the backrest and/or seating element can be selected
Inventor: KLEINKLAUS NORBERT
IPC: A47C5/12
Filed: 1993-03-19
Abstract: SEATING FURNITURE IN PLASTIC MATERIAL, OF WHICH THE DECORATION OF THE BACKREST AND/OR SEATING ELEMENT CAN BE SELECTED.     ABSTRACT OF THE DISCLOSURE           The  seating furniture comprises a shell and at least one insert which are interconnected by assembly means.          According   to  the invention, the insert is flexible and comprises  along two opposite edges, fitting means for fitting  the insert  in a substantially perpendicular direction, which means are opposite  and designed to cooperate with conjugated means molded on the  shell, fitting of the  insert then consisting in engaging  its first  fitting  means  into  the conjugated one of  the  shell,  in arching  the   insert  so as to present its  second  fitting  means opposite  the  conjugated  one of the  shell and in  releasing  the insert  so  that, by an elastic return motion, the  second  fitting means also come into engagement.
Patent CA-2092323-A1 (CA)
Title: Targeting viruses and cells for selective internalization by cells
Inventor: WU GEORGE Y
IPC: C12N15/00
Filed: 1991-09-27
Abstract: Viruses or cells are targeted for selective internalization into a target in vivo. A molecule specific for a receptor on the surface of the target cell is introduced onto the surface of the virus or cell. The modified virus or cell binds the receptor in vivo) and is internalized by the target cell. The method provides vectors for selective delivery of nucleic acids to specific cell types in vivo and a means to alter the tropism of an infectious agent.
Patent CA-2093234-A1 (CA)
Title: Printing plate protectant
Inventor: JARGIELLO PAUL A
IPC: B41N3/08
Filed: 1991-09-12
Abstract: A composition useful for the protection of actinic light-exposed presensitized lithographic printing plates. The composition contains an effective amount of the di-potassium salt of hydroxyethylidene diphosphonic acid dissolved in water. The composition is applied to the surface of the revealed substrate of the plates after they have been developed but before treatment to heat, to prevent surface contamination from the heat treatment.
Patent CA-2093630-A1 (CA)
Title: Pyrroloazepine compound
Inventor: MIZUNO AKIRA
IPC: C07D487/04
Filed: 1992-08-06
Abstract: This invention provides a pyrroloazepine compound represented by the following Formula (I) or (II): (see formula I and II) wherein, when the bond indicated by the dashed line is present, Z1 represents H but, when the bond indicated by the dashed line is absent, Z1 represents H and Z2 represents OH or Z1 and Z2 are taken together to form O or a group NOR1, R1 representing H or an alkyl, aryl or aralkyl group; R represents an alkyl, cycloalkyl, cycloalkyl-alkyl, aryl, or aralkyl group; A represents an alkylene, alkenylene or alkynylene group; and Y represents a substituted or unsubstituted heterocyclic group or a group: (see formula III) in which R2 and R3 represent H or an alkyl, a lower-alkoxy- or aryloxy-substituted alkyl, aryl or aralkyl group; a salt thereof; a preparation process thereof and a therapeutic for circulatory diseases, said therapeutic containing as an active ingredient the pyr-roloazepine derivative or the salt thereof.
Patent CA-2098286-A1 (CA)
Title: Aqueous film-forming foamable solution useful as fire extinguishing concentrate
Inventor: ALM ROGER R
IPC: C07C233/47
Filed: 1992-01-02
Abstract: An improved aqueous film-forming foamable concentrate which is particularly useful for extinguishing flammable liquid fires. The preferred formulation contains (a) fluoroaliphatic amphoteric surfactant, preferably a fluorinated aminocarboxylate having. a C4 to C10 perfluoroaliphatic group; (b) fluoroaliphatic anionic surfactant, preferably a C4 to C10 perfluoroalkane sulfonate, and (c) short chain (C6 to C10) alkyl ether sulfate hydrocarbon surfactant.
Patent CA-2098611-A1 (CA)
Title: Process for activation or regeneration of nickel catalyst
Inventor: BRYNDZA HENRY E
IPC: C07C253/08
Filed: 1991-12-13
Abstract: This invention concerns the use of M[BR3H]y reagents for activating or regenerating deactivated or degraded Ni catalyst used in Ni-catalyzed alkene hydrocyanation processes in the presence of an organic phosphorus compound, where M is an electropositive ion excluding nickel, such as, but not limited to, the Group IA  cations, the Group IIA cations, the lanthanide cations and the quaternary ammoniums and R is an organic radical of up to 18 carbon atoms, and where y is equal to the net charge of the cation. The invention also concerns a process for activation or regeneration of Ni-catalysts using MH and a catalytic amount of BR3.
Patent CA-2099264-A1 (CA)
Inventor: GLADISH HERBERT E
IPC: B65G1/04
Filed: 1991-12-05
Abstract: Apparatus for moving two individual bins between separate loading stations therefor and a common unloading station includes a length of conveyor on which one bin always rests and a set of pivotable lever arms (16), the other bin being connected to one end of one set of lever arms. Another set of lever arms (30) is connected to the first lever arms and carries cam followers (34) which are constrained to simultaneously follow two sets of cam tracks, one of which (40) is stationary within the apparatus and the other of which (56) is affixed to the one bin. When a bin at the unloading station is empty the apparatus will move that bin to its own loading station while bringing the other bin form its loading station to the unloading station. Interaction between the cam followers and the cam tracks moves the one bin back or forth on the conveyor while the other bin member is moved in a vertically arcuate path. The loading station of the other bin is vertically spaced above the loading station of the one bin.
Patent CA-2100249-A1 (CA)
Inventor: LEDINGHAM BLAKE A
IPC: A46B7/04
Filed: 1991-02-01
Abstract: 2100249 9213472 PCTABS00014 This invention pertains to a paint brush bristle holder which facilitates cleaning after use, and prevents dried paint bristle buildup, and bristle spread. The holder (8) comprises: removable means (10, 12) for fitting over the bristles (6) of the paint brush (2) at the location where the bristles (6) meet the base of the holder (8) and handle (4) of the paint brush (2), said means preventing the migration of paint into the bristles covered by the removable (10, 12) means.
Patent CA-2100804-A1 (CA)
Title: Thermal Regenerative Device
Inventor: PETTINGILL TOM K
IPC: F02G1/044
Filed: 1993-07-19
Abstract: Vuilleumier type heat pumps and other thermal regenerative devices of the same type are improved by the provision of agitation and circulation of the working fluid within the working spaces for greater efficiency of heat exchange to/from these spaces. The circulation may be by means of fans, with electric motors, jet circulators, controlled direct exit of the working fluid from displacers, rotor blades located on a shaft operated from outside the device and other suitable means. The device may be single- or multi-unit. It may provide power to drive itself and/or for other uses.
Patent CA-2101002-A1 (CA)
Title: Reduced moment anchor hub
Inventor: HOYT ROBERT M
IPC: E02D27/42
Filed: 1993-07-21
Abstract: ABSTRACT    An earth anchor apparatus having reduced bending moment characteristics is provided, including a longitu-dinally extending hub having first and second axial ends. Affixed to the hub between the ends thereof is a radially extending load-bearing element, including a leading edge intersecting the hub and structure extending radially outward from the hub in a generally helical direction. The apparatus further includes an elongated anchor rod having first and second ends, and means for coupling the rod to the earth anchor.   The coupling means includes means for reducing bending moments in the rod during movement thereof.
Patent CA-2101494-A1 (CA)
Title: Index matching composition with improved dng/dt
Inventor: BILKADI ZAYN
IPC: C08K3/36
Filed: 1993-07-28
Abstract: ABSTRACT:           The invention relates to optically transmissive, silica-containing compositions which exhibit a small change of refractive index with respect to temperature changes (dn?/dT).  The compositions are derived from silica sols dispersed in liquid organic polymers.  The invention relates to optical systems comprising a plurality of elements that are optically interconnected by means of the inventive composition.          An especially preferred embodiment of the invention is the use of the composition within a connector to simultaneously align and join optical fibers.
Patent CA-2102367-A1 (CA)
Title: Flameproof toaster
Inventor: MCNAIR JOHN D
IPC: A47J37/08
Filed: 1993-11-03
Abstract: ABSTRACT      A toaster is disclosed capable of retaining a fire within the body of the toaster should such a fire commence for any reason, the toaster comprising an outer housing, an inner enclosure defining a toasting compartment, an open access slot enabling access to the toasting compartment, movable flameproof member means either closing the access slot or opening same, movable carriage means in the toasting compartment to carry a product to be toasted, and latch means to hold the movable flameproof member means closed until manually released thereby ensuring a person is at the toaster should a fire have commenced in the toasting chamber.
Patent CA-2102685-A1 (CA)
Title: Lubricant Pumping in Tandem Drive Axles
Inventor: KWASNIEWSKI DALE L
IPC: F16C3/14
Filed: 1993-11-08
Abstract: A lubricant pump (82) of the gerotor type is mounted concentrically over the output shaft (24) of the leading axle (76) in a tandem drive axle arrangement having in inter-axle power dividing differential (36). The outer rotor (88) of the pump (82) is connected by an annular drive band (120) to the differential carrier (38) to assure full time pump operation. Passages (114,134) are provided for flow through an externally mounted filter.
Patent CA-2103846-A1 (CA)
Title: Hydrogel composition and methods of making it
Inventor: TRUTER PATRICIA-ANN
IPC: C08J3/24
Filed: 1993-08-11
Abstract: ABSTRACT   The invention provides a translucent, water-insoluble hydrogel composition and methods of making it. The hydrogel composition comprises a polyvinyl alcohol polymer and a complexing agent which are physically crosslinked to form a semi-crystalline polyvinyl alcohol-complexing agent polymer complex. This is achieved by:   (i)   combining a polyvinyl alcohol polymer with a suitable aprotic solvent;   (ii)  Adding a complexing agent to (i) to form a water soluble complex with the polyvinyl alcohol polymer; and (iii) Allowing the polyvinyl alcohol polymer and the complexing agent to form a water-insoluble, semi-crystalline structure.   The formation of the semi-crystalline structure is assisted by freezing the polyvinyl alcohol/complexing agent/polar aprotic solvent mixture.
Patent CA-2108546-A1 (CA)
Title: A syringe
Inventor: RYLES LOUIS
IPC: A61M5/32
Filed: 1992-04-21
Abstract: A single use syringe (10) for administering medicament which includes a needle attachment member gripping means (25) constituting a closure of the distal end of the plunger (11) of the syringe (10) and being adapted to engage a needle attachment member (26) so that the needle attachment member (26) can be retracted into the interior of the plunger (11) by vacuum within the plunger (11). The syringe is intended to minimise the possibility of injury following use of the syringe.