baber/WOPTO huggingface dataset:
Patent CA-2029716-A1 (CA)
Title: Glass bottles and process for preparing the same
Inventor: NAKAGAWA MANABU
IPC: C03C17/245
Filed: 1990-11-09
Abstract: Disclosed is a process for preparing a coating for glass bottles, which comprises the step of bringing a glass bottle having an external surface temperature of 550 to 700°C into contact with a material which can form a coating comprising SnO2 or TiO2 so as to form a coating comprising SnO2 or TiO2 at a thickness of 400 to 1,000 angstroms.
Patent CA-2030906-A1 (CA)
Title: Rumble strip for highways
Inventor: CLARKE RONALD A W
IPC: E01F9/529
Filed: 1990-11-27
Abstract: Abstract of the Disclosure RUMBLE STRIPS FOR HIGHWAYS     The rumble strips comprise wide (5-10 cm) strips of rubber let into grooves in the road surface.  The groove is out by a reflex-percussion machine (in which the cutting bit is forcibly withdrawn from the surface the instant the bit strikes the surface, so that the material flakes by induced tension).  The rubber strip is wide and bulky, and provides good rumble intensity without interfering with tire passage.          The rubber strip may be held in place with a shaped anchor strip, made of metal and bolted to the base of the groove.          The strip may extend across the full width of a traffic lane, or may be short.
Patent CA-2031181-A1 (CA)
Title: Circuit for synthesizing an impedance across the tip and ring leads of a telephone line circuit
Inventor: PATEL LALIT O
IPC: H04M1/76
Filed: 1990-11-29
Abstract: A CIRCUIT FOR SYNTHESIZING AN IMPEDANCE ACROSS THE TIP       AND RING LEADS OF A TELEPHONE LINE CIRCUIT                          ABSTRACT A circuit for synthesizing an impedance across the tip and ring leads of a telephone line circuit is disclosed.  The circuit includes tip drive and ring drive amplifiers  connected to the tip and ring leads respectively, of a subscriber loop.  The tip drive and ring drive amplifier circuits are arranged to convert feed voltage from a central office battery to feed current to drive the subscriber loop.  A common-mode amplifier circuit connected between the tip and the ring leads senses the voltage dropped across the subscriber loop and outputs a control voltage to the tip and ring drive amplifiers, offsetting the feed currents applied to the subscriber loop.  A differential amplifier circuit also connected to the tip and ring leads of the subscriber loop, detects a voltage difference between the tip lead and the ring lead and converts the detected differential voltage into a single ended output voltage of a specific gain.  The output voltage from the differential amplifier circuit is coupled to a feedback circuit via a series connected resistor and capacitor network.  The feedback circuit receives the differential amplifier output voltage that is modified by the values of the resistor and capacitor network and develops a pair of balanced output signals which are equal in amplitude but 180 degrees out of phase with each other.  Each of the output signals is connected to a respective one of the tip drive and ring drive amplifier circuits where, an input impedance equal to the impedance of the subscriber loop is derived at the tip and ring leads.
Patent CA-2032818-A1 (CA)
Title: Salicylic acid derivatives, their preparation and their use as herbicides and bioregulators
Inventor: EICKEN KARL
IPC: C07D239/34
Filed: 1990-12-20
Abstract: - 42 -          O.Z. 0050/41325 Abstract of the Disclosure:  Salicylic acid derivatives of the formula I                     I     where A is unsubstituted or substituted phenyl, an unsub-stituted  or  substituted  five-membered  heteroaromatic structure having from two to four nitrogen atoms or having two nitrogen atoms and in addition a sulfur or oxygen atom, or unsubstituted or substituted naphthyl, n is 0, 1 or 2, X and Y are each nitrogen or a methine group and R1 to R4 have the meanings stated in the des-cription, processes and intermediate  for their prepara-tion, and their use as herbicides and bioregulators.
Patent CA-2033998-A1 (CA)
IPC: C08G2/38
Filed: 1990-06-08
Abstract: The present invention relates to a polyacetal copolymer comprising a polyoxymethylene group (A) and a vinyl polymer group (B), the copolymer having a structure of the formula (I):     An-X-B     (I) wherein X is a terminal group of B and represents a binding group derived from a compound having at least two carbon atoms and 1 to 4 groups selected from hydroxyl, carboxyl, ester, amino and alkoxy groups, and An means that A is present in the quantity of n times in number, and bonds to X, in which n = 1 to 4, and the copolymers has a number average molecular weight of 10,000 to 500,000; a process for the production of said copolymer; and a composition comprising said copolymer and a polyvinyl polymer and/or polyoxymethylene.
Patent CA-2034512-A1 (CA)
Title: Sliding screen door guard
Inventor: HATTON ROBERT D
IPC: E06B9/00
Filed: 1991-01-18
Abstract: A B S T R A C T           THIS IS A SCREEN GUARD THAT COVERS AND PROTECTS, FROM THE INSIDE AS WELL AS THE OUTSIDE, THE APPROXIMATE LOWER HALF PORTION OF A SLIDING SCREEN DOOR OF VARIOUS SIZES, AS COMMONLY FOUND IN HOMES AND HOTEL ROOMS, ON PATIOS, BALCONIES ETC.  THIS SCREEN GUARD DOES NOT STOP AIR FLOW THROUGH THE SCREEN ..  IT PREVENTS DAMAGE TO THE SCREEN CAUSED BY CHILDREN, PETS, AND OBJECTS ETC. STRIKING THE SCREEN .. AND MAKES THE SCREEN DOOR MORE VISIBLE IN POOR LIGHT CONDITIONS. WITH IT'S FULL LENGTH HANDLE, FROM THE TOP OF THE GUARD To THE BOTTOM OF THE DOOR, IT MAKES THE SLIDING OF THE SCREEN DOOR EASIER .. ESPECIALLY FOR SMALL CHILDREN, OR FOR A PERSON WITH FULL HANDS TO SLIDE OPEN/CLOSE THE SCREEN DOOR WITH THEIR FOOT.  IT CAN BE MANUFACTURED FROM CLEAR OR COLOURED SOLID VINYL, PLASTIC, RESIN, ACRYLIC, METAL, RUBBER, ETC., OR A COMBINATION OF ANY LIGHT WEIGHT STURDY STATE OF THE ART MATERIALS.  IT CAN HAVE IT'S HANDLES AS SEPARATELY ATTACHED PIECES, OR AS PART OF THE GUARD PANELS AS IF MANUFACTURED IN A ONE PIECE  MOULD.  AIR FLOW OPENINGS IN OUTSIDE AND INSIDE PANELS CAN BE OF VARIOUS SIZE AND DESIGN AND WILL MATCH EACH OTHER WHEN INSTALLED.
Patent CA-2035406-A1 (CA)
Title: Radiation-sensitive mixture, radiation-sensitive recording material produced therewith and process for producing relief copies
Inventor: ELSAESSER ANDREAS
IPC: G03F7/039
Filed: 1991-01-31
Abstract: Abstract of the Disclosure A radiation-sensitive mixture, a radiation-sensitive  recording  material  produced  from  the mixture, and a process for producing heat-resistant and  chemical-resistant  relief  copies  using  the recording material are disclosed.   The normally positive-working   radiation-sensitive   mixture contains (1) a water-insoluble polymeric binder which is soluble in aqueous alkaline solutions, and (2)   a   1,2-quinone   diazide   and/or   a combination of a  compound which  forms  strong  acid when exposed to actinic radiation and a compound containing at least one acid-cleavable C-O-C bond. The polymeric binder has a molecular weight of between about 5,000 and 100,000 and a content of phenolic  hydroxyl  groups  of  about  1  to  15, preferably about 2 to 10, mmol/g of polymer.  It has a  content  of  -CH3-nXn units  of  at  least  0.1, preferably about 0.5 to 2, mmol/g of polymer,  X being halogen such as chlorine, bromine or iodine and n being 1, 2 or 3.   Lithographic plates are produced  with  the  mixture  which  are  thermally postcurable, have a high print run and have good resistance to chemicals.  Photoresists having high heat  resistance  can  also be  produced with  the mixture.
Patent CA-2036570-A1 (CA)
Inventor: ARNAUD DIDIER
IPC: C09K3/00
Filed: 1991-02-19
Abstract: To replace chlorofluorocarbons as refrigerating fluids, the invention proposes to employ a mixture of dimethyl ether and 1,1,1,2-tetrafluoroethane. 
<??>These compounds form an azeotrope which, at its normal boiling point (approximately -22.4 DEG C at 1.013 bar), contains approximately 62.3% by weight of 1,1,1,2-tetrafluoroethane. 
<??>The mixture according to the invention can also be employed as an aerosol propellant or as a blowing agent for plastic foams.
Patent CA-2037169-A1 (CA)
Title: System for the distribution of gas in catalytic beds and for the support with minimum dimensions of the catalyst in reactors for heterogeneous synthesis
Inventor: ZARDI UMBERTO
IPC: B01J8/02
Filed: 1991-02-27
Abstract: System for the production of minimum dimension walls for the optimal distribution of gas and to support the catalyst in catalytic beds in radial or axial-radial reactors consisting: a) of a single element with portions permeable to gas capable of ensuring the necessary pressure drop, and portions acting as mechanical support for the catalyst impermeable to gas; b) of an element containing the catalyst permeable to gas in direct contact with it and the portions of a) acting as mechanical support.
Patent CA-2038091-A1 (CA)
Title: Systeme pour le pilotage d'un missile au moyen de tuyere laterales
Inventor: MORGAND JEAN-PIERRE
IPC: B64C15/14
Filed: 1991-03-11
Abstract: Système pour le pilotage d'un missile (1) au moyen de jets gazeux, comportant un générateur de gaz susceptible d'être relié à au moins une paire de tuyères latérales (8) par l'intermédiaire de moyens d'obturation rotatifs (14), mobiles sous l'action de moyens moteurs (30) et commandant le passage des gaz à travers lesdites tuyères.      Selon l'invention: - à chaque tuyère (8) est associé un obturateur rotatif individuel (14); - chaque obturateur (14) est commandé en rotation par un piston (31) partageant un vérin (30) en deux chambres (38a,38b) de sections différentes, lesdites chambres recevant chacune une partie du gaz engendré par ledit générateur de gaz et la position dudit piston étant commandée par le contrôle du débit dudit gaz à travers la chambre (38a) de plus grande section ; et - les deux obturateurs (14) sont liés l'un à l'autre par une liaison mécanique (50) telle que, lorqu'un obturateur tourne dans un sens, l'autre obturateur tourne dans le sens opposé, de la même amplitude angulaire.
Patent CA-2040333-A1 (CA)
IPC: E05F3/22
Filed: 1991-04-12
Abstract: A door closer which comprises a damper having a body case including an arm fixed to a door, a rotational shaft formed in the body case, a pair of chambers filled with high viscous liquids, a pair of rotary blades respectively having passages with check plates of the rotational shaft, the rotary blades being rotated together with a rotational shaft by a sub case fixed with a sub arm against a return spring at the time of opening the door, the door being effected by the resistance force of the high viscous liquid against the closing door, a stationary plate fixed to the body case, an intermediate plate so engaged as to be rotatable at a predetermined angle against the return spring, a movable plate so engaged with the sub case as to be rotatable together with the sub case, a plurality of rotary connectors respectively movably engaged with a plurality of through holes on the rotating circumferential line of the intermediate plate, and an angle clutch formed with recesses to be engaged with the rotary connectors corresponding to the through holes of the rotary connectors.  Thus, the door closer can provide a locking state of power accumulated at a return spring at a predetermined door opening angle and a freely stopping state.
Patent CA-2041096-A1 (CA)
Inventor: DERVAL MICHEL
IPC: B65D81/38
Filed: 1991-04-24
Abstract: "Emballage isotherme et procédé de fabrication d'un tel emballage". SOCIETE DITE : SONABAT CHANTAL a) Emballage isotherme formé de deux élé7ments (10, 11) réalisés en matière expansée isolante. b) Emballage caractérisé en ce que chaque élément (10, 11) est formé d'une coque (12) en polystyrène expansé formant l'ossature interne et d'une garniture (13) en polyuréthane, moulée dans la coque. Cet emballage comporte une cavité (14) pour recevoir les produits et la fermature étanche se fait par les bords d'étanchéité (15, 16). c) L'invention concerne le domaine des emballages isothermes. FIGURE 2 JOINTE
Patent CA-2046031-A1 (CA)
Title: Brake disks
Inventor: ROBIDOUX BERTHOLD
IPC: B22D19/08
Filed: 1991-07-02
Abstract: ABSTRACT            A brake disk is disclosed, which comprises an annular core made of cast metal, preferably aluminum, and a plurality of friction pads set in the core on its opposing radial faces. The pads have coplanar radial friction surfaces clear of cast metal. However,  the latter circumscribes the friction pads and fills,  at least partially, holes through the pads to secure them firmly to the core.
Patent CA-2052175-A1 (CA)
Title: Geography game kit
Inventor: LEWIS BETTY C
IPC: G09B19/00
Filed: 1991-09-24
Abstract: GEOGRAPHY GAME KIT                  ABSTRACT OF DISCLOSURE The present invention entails a geography game kit that is designed for teaching children and others the identity and location of counties within a particular state, the county seat of respective counties, and general information and history concerning the counties and the state. In particular, the geography game kit includes a puzzle board that includes a back panel having a raised state shaped outline extending around the back panel that conforms to the shape of a particular state. There is also provided a plurality of county puzzle pieces that conform to or represent the shape of the respective counties constituting the particular state. In addition, the game kit comprises a series of question and answer cards that relate to information about the respective counties and state. Finally, the geography game kit of the present invention includes a timer and at least one die that is used to determine which player begins play. During the course of the game, each respective player attempts to identify and correctly place respective county puzzle pieces onto the back panel and the players are awarded points for correctly identifying and placing puzzle pieces, identifying county seats, and correctly answering questions found on the question and a swer cards.
Patent CA-2055417-A1 (CA)
Title: Middle distillates of crude oil having improved cold flow properties
Inventor: KONRAD GERD
IPC: C10L1/22
Filed: 1991-11-13
Abstract: ABSTRACT OF THE DISCLOSURE        Crude oil middle distillates with improved cold flow properties, containing small amounts of A.  conventional flow improver on an ethylene base, and B.  copolymers which consist of a.  of 10 to 90 mol-% of one or more alkylacrylates or alkylmethacrylates with C1- to C30-alkyl chains, and b.  of 5 to 60 mol-% of one or more ethylenically unsaturated dicarboxylic acids or their anhydrides, and c. of 5 to 60 mol-% of one or several alkylvinylethers with C18- to C28-alkyl side chains, where the quantitative proportion of A to B is 40 to 60 and 95 to 5.
Patent CA-2056774-A1 (CA)
Inventor: LENORMAND REGIS
IPC: H01Q25/00
Filed: 1991-11-28
Abstract: L'invention concerne une antenne émission reconfigurable comprenant un réflecteur focalisant l'énergie, un réseau de sources élémentaires situé dans la zone focale du réflecteur, de manière à réaliser la synthèse du champ électromagnétique dans cette zone, dans laquelle la réalisation d'un spot résulte du rayonnement d'un nombre fixe et identique de sources pour tous les spots; une source participant au plus au rayonnement d'un spot; une commutation haut niveau permettant de reconfigurer les spots en sélectionnant les sources participant à un spot donné. La présente invention peut être appliquée au domaine des télécommunications spatiales.
Patent CA-2057446-A1 (CA)
Title: Shared memory access and data structure access control
Inventor: BAKER BRIAN N
IPC: G06F13/16
Filed: 1991-12-11
Abstract: A method and circuit for granting access to a block of memory in a multiprocessor system having a shared memory is provided.  When a memory request for exclusive access to a block of memory is granted, the starting address for that block of memory is placed in a register bank, thereby opening a semaphore.  The starting address of a memory block of a subsequent memory access request is compared with the starting addresses corresponding to open semaphores within the register bank and access is denied to the requested block of memory if a match is found.  The starting address associated with a request which is denied access is placed in a temporary buffer and the request is later granted access after the corresponding open semaphore becomes closed.  A request which is granted memory access to a memory block which results in an open semaphore, has exclusive access to that block of memory until the semaphore is closed.
Patent CA-2059049-A1 (CA)
Inventor: CAPAUL RAYMOND W
IPC: E04B9/04
Filed: 1992-01-08
Abstract: ABSTRACT OF THE DISCLOSURE A lay-in ceiling panel structure, comprising a glass fiber ply, a gypsum board, and a highly perforated vinyl lamina.  The ceiling panel structure having noise and sound transmission reduction coefficients in the range of 0.85 to 0.95 sabins and 0.35 to 0.39 dbs respectively.  This structure also provides good fire resistance, space efficiency, and a lower surface that is washable and pleasing to the eye.  In addition, the glass fiber ply is secured to the gypsum board by droplets of glue which are spaced 1 to 2 inches apart and which are applied 4 to 6 inches away from the outer periphery of the gypsum board.  Applying the glue in this way allows the glass fiber ply and vinyl lamina to lay flat even if the board is warped by water leaks, humidity or age.
Patent CA-2059395-A1 (CA)
Title: Power transmission system for snowmobile
Inventor: KAZUTAKA FUKUDA
IPC: F02B73/00
Filed: 1992-01-15
Abstract: A snowmobile having an improved power transmission system that is comprised of a split engine having two cylinder blocks each containing at least a pair of cylinders with their output shafts connected to each other. A belt drive shaft is journaled by the engine assembly and is driven off the output shafts at the point where they are joined together. The belt driveshaft drives the drive belt of the snowmobile through a variable pulley transmission.
Patent CA-2064096-A1 (CA)
Title: Modular cover for an air bag assembly
Inventor: ZUSHI TAKAYASU
IPC: B60R21/2165
Filed: 1991-06-19
Abstract: ABSTRACT         A modular cover includes a  tear line, but has a flat outer surface.  The modular cover includes a rigid inner layer and a flexible outer layer and may rupture along the  tear line.  The tear line comprises a projection (1C) raised from a junction (20) of the inner layer (1A) with the outer layer (1B), and a groove formed in the inner surface of the modular cover.  The projection (1C) is substantially trapezoidal in transverse section and has inclined surfaces (1E).  The angle formed by the inclined surface (1E) and the junction (20) adjacent to the projection is no more than 30 °.
Patent CA-2064828-A1 (CA)
Title: Toothbrush
Inventor: HUMPHRIES VICTOR A
IPC: A46B9/04
Filed: 1991-06-17
Abstract: A toothbrush (11) having an elongated handle part (12) and a head part (14) with bristles (15) projecting therefrom. A neck part (13) joins the handle part (12) to the head part (14).The head part (14) has at least one region thereof (19, 20) weakened so as to allow deformation in the head part (14) to suit the shape of the user's dental arches.
Patent CA-2070171-A1 (CA)
Title: Proteins with oncostatin m activity and process for their preparation
Inventor: LINSLEY PETER S
IPC: C07K14/435
Filed: 1990-12-07
Abstract: ABSTRACT OF THE DISCLOSURE            The present  invention  is  directed  to biologically mutant forms of the cell growth regulatory factor Oncostatin M.   The Oncostatin M mutants of the invention comprise deletion, substitution and insertion mutants and may be prepared using recombinant DNA, in vitro mutagenesis and heterologous expression techniques. Oncostatin M mutants may be useful in eliciting Oncostatin M biological responses and, as such, may find a variety of therapeutic uses including but not limited to the treatment of neoplasias.
Patent CA-2071302-A1 (CA)
Title: Virtual circuit throughput measuring device using an asynchronous time-division multiplex communications channel
Inventor: VINEL PAUL
IPC: H04L12/54
Filed: 1992-06-16
Abstract: According to the invention, the apparatus is of the type comprising a memory in which each virtual channel is assigned a context containing a data set defining the conditions for the evaluation of the data rate of this virtual channel and containing information resulting from earlier steps of this evaluation, a clock contrived to provide a current time and means of processing such that, on reception of each cell, the context of the virtual channel to which this cell belongs is read, this context serving as basis for the evaluation of the data rate, the said apparatus comprising means for proceeding to a cyclic exploration of the said contexts and, during this cyclic exploration, proceeding, for each context, to the incrementation of the contents of a counter of exploration cycles having an initial position, the said apparatus including means (SU) for identifying the virtual channels guaranteeing a minimum data rate and processing means (TR) comparing, for each virtual channel identified, the contents (LS) of the said counter of exploration cycles corresponding to the said identified virtual channel with a predetermined threshold value (S) in order to provide a signal (AL) for detecting cutoff of communication when the contents (LS) of the said counter reach the said predetermined threshold value (S). <IMAGE>
Patent CA-2071815-A1 (CA)
Title: Sulfonated heterocyclic carboxamides, processes for their preparation, agents containing them and their use as herbicides, growth regulators or fungicides
Inventor: ORT OSWALD
IPC: C07D409/12
Filed: 1990-10-18
Abstract: Compounds of formula (I) or their salts, where R1 to R6, W, X, a and b are as defined in claim 1 and L is a heterocyclic or isocyclic aromatic residue with 5 to 6 ring atoms which can be condensed with an aromatic or non-aromatic 5- or 6-membered ring and which may be substituted or unsubstituted, and a, b and c independently stand for 0 or 1, are suitable for use as herbicides, plant growth regulators and fungicides. They can be produced by the process defined in claim 5, and some new intermediate products (see claims 14 and 15) can be used.
Patent CA-2073238-A1 (CA)
Title: Paper sizing agent composition
Inventor: TAKAHASHI YOSHIO
IPC: D21H17/16
Filed: 1992-07-06
Abstract: ABSTRACT An alkenylsuccinic anhydride type paper sizing agent composition which causes little contamination of a paper machine and exhibits an excellent sizing effect is provided.        The paper sizing agent composition contains addition reaction products obtained from an addition reaction between a straight-chain internal olefin comprising 16 to 20 carbon atoms and maleic anhydride, any unreacted olefin and maleic anhydride having been removed from said addition reaction products; said addition reaction products comprising as a main component alkenylsuccinic anhydride (1 : 1 adduct) represented by formula (I):                                     (I) wherein both of R and R' are alkyl groups or either one of R and R' is an alkyl group while the other is a hydrogen atom; and a 1 : 2 adduct (2 moles maleic anhydride per mole of olefin), and a decarbonated product of said 1 : 2 adduct in a total amount, based on said addition reaction products, of from about 7 to about 12 mol%.