baber/WOPTO huggingface dataset:
Patent CA-2036777-A1 (CA)
Title: Gas generator
Inventor: UNTERFORSTHUBER KARL
IPC: B60R21/26
Filed: 1991-02-20
Abstract: Abstract Of The Disclosure A gas generator for an air bag has a combustion chamber (6), which is surrounded by an annular filter chamber (11), wherein the annular filter  (14)  of the filter chamber  (11)  has an exposed annular  surface  extending  on  its  outside  over  its  entire circumference for discharging the propellant gases into the air bag (24).
Patent CA-2044598-A1 (CA)
Title: Method of operating a plurality of minerals separation flotation cells
Inventor: JAMESON GRAEME J
IPC: B03D1/02
Filed: 1990-07-26
Abstract: A METHOD OF OPERATING A PLURALITY OF MINERALS                SEPARATION FLOTATION CELLS     Abstract of the Disclosure A method of operating a plurality of minerals separation flotation cells (1,2) by using a feed box (3) for the slurry feed (6) and connecting the feed box in series via pumps (8, 13).  A proportion of the gangue from each cell is recycled via connections (20) to the feed box. The proportion of gangue recycled is controlled by the pumping rate of each pump (8, 13).
Patent CA-2044839-A1 (CA)
Title: Apparatus for stacking sheets
Inventor: GERLIER ANDRE
IPC: G07F7/04
Filed: 1991-06-18
Abstract: ABSTRACT     An apparatus for stacking sheets (3) comprises in at least one belt plane  (12)  a belt (17) of predetermined length and an endless belt (26). In the belt plane (12) the belts (17; 26) pass around rigidly arranged rollers (20 through 25) and three guide rollers (13; 14; 15) which are displaceable  for  the purposes of variation of the belt geometry by means of a carriage (11). As soon as the sheet (3) passes in  one  direction  of  movement  (32  or  36  respectively)  into  a transportation plane (16) formed from the belts (17; 26) a drive (30) displaces the carriage (11) on a rail (8) into a position above a stack (1) in the same direction of movement (32 or 36), the sheet (3) which is engaged by the belts (17; 26) being conveyed at double the speed of the carriage (11) to the outer guide roller (13 or 15 respectively) and deposited around same on to the stack (1).            (Figure 1)
Patent CA-2045145-A1 (CA)
Inventor: JANNARD JAMES H
IPC: G02C11/00
Filed: 1990-11-20
Abstract: Dans des lunettes à branches (20), un élément adhérent élastomérique quasi-cylindrique (40) est placé dans un siège en retrait (30) qui se prolonge sur une partie de chaque branche (20) pour fournir une surface de contact entre la branche et la tête.  L'élément adhérent (40) et le siège (30) peuvent être ajustés pour que l'élément adhérent (40) soit presque de niveau avec la branche adjacente ou bien l'élément adhérent (40) peut se prolonger au-delà de la périphérie de la branche.  Dans les deux configurations, l'élément adhérent (40) se prolonge dans une large mesure parallèlement à la branche (20).
Patent CA-2046194-A1 (CA)
Inventor: BRATLIE KENNETH A
IPC: B65G67/40
Filed: 1991-07-04
Abstract: A portable low-profile tipper for dumping the contents from a trailer containing a dumpable material, includes a towable elongated frame having a back end with a deck pivotally attached thereto.  The deck has a backstop for positioning the trailer during dumping. Actuators raise and lower the deck between a lowered position adjacent the frame and a raised position for dumping the trailer contents.  The tipper includes a chute having fixed and pivoting components which cooperate to guide the dumpable material from a back opening of the trailer past the frame back end.  The tipper frame has outwardly extending front and back stabilizers.  The front stabilizers lift and lower a front end of the frame between a low-profile dumping position for receiving the trailer and a raised towing position for hitching and towing the tipper between dumping locations.         A method of successively removing the contents from a plurality of trailers using the tipper is also provided.
Patent CA-2046612-A1 (CA)
Title: Pocket chart for localizing lesions of the peripheral nervous system
Inventor: FARDIN PAOLO
IPC: A61B5/00
Filed: 1990-12-18
Abstract: ABSTRACT OF THE DISCLOSURE            The present invention refers to a pocket chart for localizing lesions of the peripheral nervous system, consisting of a flexible card divided in four sections, indicated respectively with A, B, C and D, wherein section A lists the test muscles for the innervation of the upper extremity, section B shows the consultation graph for locating the nerve lesion in the area of the brachial plexus, section C lists the test muscles for the innervation of the lower extremity, and section D show the consultation graph for locating the nerve lesion in the lumbosacral plexus area.
Patent CA-2048659-A1 (CA)
Title: Soulier a tour de pied ajustable
Inventor: ROSEN HENRI E
IPC: A43B/
Filed: 1990-02-13
Abstract: haussures ayant un dispositif non visible pour ajuster le tour de pied.  L'élément d'ajustement du tour de pied peut être manuel ou automatique et comprend généralement une doublure ajustable du tour de pied placée à l'intérieur de la chaussure.
Patent CA-2049413-A1 (CA)
Inventor: DING MAYNARD G
IPC: F23C99/00
Filed: 1991-08-14
Abstract: A method for endothermically dissociating contaminated acid wherein high velocity oxidant causes a recirculation flow within a combustion zone and combusts with fuel to release heat and wherein the heat is efficiently applied by the internal recirculation to the acid for endothermic dissociation of the acid.
Patent CA-2051492-A1 (CA)
Title: Pneumatic radial tire
Inventor: UEMURA YOSHIAKI
IPC: B60C11/00
Filed: 1991-09-16
Abstract: ABSTRACT OF THE DISCLOSURE       A pneumatic radial tire having at least two tread grooves provided in the circumferential direction of the tread, wherein an interaction distribution diagram showing the state of interference between the edges of tread grooves and the edges of rain grooves is approximated by waveforms and expanded into a Fourier series,  with the value of the first-order amplitude being reduced to a low level whereas the value of the second-order amplitude or a higher-order amplitude is enhanced.
Patent CA-2053266-A1 (CA)
Title: Procede et catalyseur de polymerisation
Inventor: JOB ROBERT C
IPC: C08F4/654
Filed: 1990-04-19
Abstract: Procédé et catalyseur utiles pour produire des poly-alpha-oléfines élastomères surtout stéréorégulières qui se caractérisent par une distribution relativement étroite de blocs relativement courts. L'alpha-oléfine ayant au moins trois atomes de carbone est polymérisée en présence d'un catalyseur qui comprend le produit de la réaction d'un composé oxyde de magnésium avec un halogénure tétravalent de titane en présence d'un donneur d'électrons, un composé organoaluminium et un composé hétérocyclique aromatique d'azote qui sert de régulateur de la sélectivité.
Patent CA-2055770-A1 (CA)
Title: Interfacial surface generator
Inventor: SCHRENK WALTER J
IPC: B29C48/71
Filed: 1991-11-19
Abstract: ABSTRACT Method and apparatus are disclosed for making multilayer film having a prescribed gradient in, or distribution of, the thicknesses of one or more materials through the thickness of the film. 39,157-F
Patent CA-2057790-A1 (CA)
IPC: B43M5/02
Filed: 1991-12-17
Abstract: A front-end feeder for a mixed mail handling machine employs a raised deck portion spaced from a registration wall for the mail pieces.  The raised deck portion, preferably a plurality of fixed steps of increasing height, provides additional tilting and guidance of wide mail pieces to prevent misregistration.
Patent CA-2060193-A1 (CA)
Title: Process for the preparation of halogenated 2,2-bis(trifluoromethyl)-1,3 dioxolanes
Inventor: MANZER LEO E
IPC: C07D317/42
Filed: 1990-08-16
Abstract: A process for the production of a halogenated 2,2-bis(trihaloalkyl)-1,3-dioxolane of formula (I), wherein Rf is perhaloalkyl comprising a 2,2-bis(trihaloalkyl)-1,3-dioxolane in the presence of at least one of La, Ni, Sn, Zn, Fe, Co or Cu is disclosed. A  process for the production of a halogenated 2,2-bis(trihaloalkyl)-1,3-dioxolane of formula (II), wherein X is Cl and each Y is independently Cl or F and wherein at least one Y is F, comprising fluorinating a halogenated 2,2-bis(trifluoromethyl)-4,4,5,5-tetrachloro-1,3-dioxolane in the presence of a catalyst which is preferably Cr2O3 is disclosed. A process for the production of a 2,2-bis(trihaloalkyl)-1,3-dioxole of formula (III), comprising dehalogenating substantially only a corresponding trans-2,2-bis(perhaloalkyl)-4,5-difluoro-4,5-dichloro-1,3-dioxolane is disclosed.
Patent CA-2060526-A1 (CA)
Inventor: FREEMAN ROSS A
IPC: B65H19/12
Filed: 1992-02-03
Abstract: ABSTRACT OF THE DISCLOSURE      A specially constructed pallet jack is used for transporting a heavy roll of paper having a central hollow core.  The pallet jack includes a frame with elongated arms having first and second ends, with a first set of wheels mounted at the second end of the arms, and a second set of wheels mounted near the first end of the arms.  A jack is provided for jacking up the first ends of the arms so that they are spaced from the wheels.  Between the arms is a cradle having first and second ends with three obtuse angle-connected planar surfaces extending between the first and second ends.  The first end of the cradle is pivotally mounted to the first ends of the arms, and the cradle is biased to a roll-receiving position by a gas spring.  When a roll is rolled into the cradle, it pivots, dampened by shock absorbers to a roll-receiving position in which the roll cannot spontaneously roll out of the cradle.  A strap passes from the cradle through the core of the roll to positively hold it in place.
Patent CA-2060962-A1 (CA)
Inventor: NEWMAN RODERICK E
IPC: A63B59/70
Filed: 1992-02-10
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates to an improved locking device in a joint for a sporting implement derived from at least two separable elements, one of which telescopes into the other along a common axis in sliding fit to provide a region of overlap,  In particular the two separable elements of the sports implement include a handle or shaft portion and a blade or head portion.   One of these portions presents a projection formation to a receptacle formation presented by the other of such portions.  A displaceable locking member comprising a boss having a flanged part and projecting part is carried by one of such formations and is operably displaced so that the projecting part extends in full registration within an aperture or recess provided in the other of such formations.  In an alternative embodiment a bias is provided to normally urge the displaceable locking member within engagement or registration in the aperture or recess so as to releasably secure the handle or shaft portion against separation from the head or blade portion.
Patent CA-2062886-A1 (CA)
Title: Substituted azetidinones as anti-inflammatory and antidegenerative agents
Inventor: MACCOSS MALCOLM
IPC: C07D205/08
Filed: 1992-03-12
Abstract: TITLE OF THE INVENTION NEW SUBSTITUTED AZETIDINONES AS ANTI-INFLAMMATORY AND ANTIDEGENERATIVE AGENTS            ABSTRACT OF THE INVENTION         New substituted azetidinones of the general formula (A), which have been found to be potent elastase inhibitors and thereby useful as anti-inflammatory and antidegenerative agents, are described.       A
Patent CA-2065502-A1 (CA)
Title: Gear metering pump for compounded elastomeric material
Inventor: GREENSTREET ARTHUR W
IPC: B29C48/94
Filed: 1992-04-07
Abstract: ABSTRACT OF THE DISCLOSURE        A  gear  metering  pump  for  delivering  precise amounts of a compounded elastomeric material into a die. The gear pump has a housing formed with a hollow interior chamber containing a pair of rotating meshing gears mounted on shafts,  one of which is power driven,  for passing controlled quantities of the compounded material out of the chamber and into the die.   A side plate is removably mounted on the housing and encloses an open side of the chamber and is moved between open and closed positions by fluid pressure cylinders mounted on the housing to provide ready access into the chamber for cleanout.   A first bearing assembly for the gear shafts is mounted on the removable side plate and retains the gears mounted thereon for removing the gears from within the chamber along with the  side  plate.    Outlet  openings  are  formed  in  the removable side plate and in an opposite fixed side plate adjacent  the  shafts  and  bearings,  permitting  small quantities of the compounded material to flow between the shafts and bearings and out of the openings for lubrication of the bearings.  The drive shaft passes out of the housing through an enlarged opening and is free of any end seal with the housing to reduce heat buildup.
Patent CA-2067029-A1 (CA)
Title: Purification of 3,5-xylenol
Inventor: DAVIE WILLIAM R
IPC: C07C37/68
Filed: 1992-04-24
Abstract: ABSTRACT OF THE DISCLOSURE   3,5-xylenol is separated from mixtures containing isophorone sufficient to form an azeotrope with the 3,5-xylenol by distilling the mixtures in the presence of an amine of the formula NR1R2R3 where R1, R2 and R3 are independently selected from alkyl, alkanol and aryl groups having from two to six carbon atoms, said amine having an atmospheric boiling point above 230°C.
Patent CA-2067401-A1 (CA)
Title: Amino and ammonium isocyanates, a process for their preparation, their use for the production of polymers containing ammonium groups and the polymers thus produced
Inventor: BUYSCH HANS-JOSEF
IPC: C07C265/04
Filed: 1992-04-28
Abstract: New amino and ammonium isocyanates, a process for their preparation,  their use  for the production of polymers containing ammonium groups and the polymers thus produced A b s t r a c t The present invention relates to new amino and ammonium isocyanates, to a process for their preparation, e.g. by the reaction of certain ureas with isocyanates, and to the use of the new substances for the production of polymers containing ammonium groups.
Patent CA-2067787-A1 (CA)
Title: Air Bag
Inventor: SHIGETA SEIZABURO
IPC: B60R21/16
Filed: 1991-08-15
Abstract: An air bag (1) composed of, at least one part, a laminated fabric comprising a fabric (2a) woven of synthetic multifilament yarns, olefinic resin film (3) laminated on one side of said fabric (2a), and non-woven fabric (4) overlaid on said resin film (3). Said laminated fabric weights 280 g/m2 or under and has air permeability of 2 cc/cm2/min or under.  An air bag of the   struc-ture of this invention exhibits excellent functions generally applicable to not only the driver's seat but also assistant-driver's seat and other purposes  in vehicles.
Patent CA-2068399-A1 (CA)
Inventor: BADURA WOLFGANG
IPC: F42B5/155
Filed: 1992-05-11
Abstract: ABSTRACT OF THE DISCLOSURE          A projectile to be fired by a electric ignition defensive projector attached to an object to be defended has a pro-pellant charge and an active charge and ignition devices for igniting the propellant and active charges.   The active charge-ignition  device  is  a mechanical  ignition  device including a  firing pin and a  firing pin  spring.   The mechanical ignition device is tensioned and released by a grappling line, which is connected, on the one hand, to the projector or a part of a projectile which remains in the projector, and is likewise connected to the firing pin. After  the  projectile  has  been  fired  and  when  it  has travelled through a range of fire that corresponds to the length of the grappling line, then the firing pin spring is subsequently released which then ignite the active charge of the projector via a percussion cap and a pyrotechnical igniter train.
Patent CA-2069084-A1 (CA)
Title: 1.alpha.-hydroxy vitamin d4 and novel intermediates and analogues
Inventor: KNUTSON JOYCE C
IPC: A61K31/59
Filed: 1991-09-20
Abstract: Novel 1.alpha.-hydroxy vitamin D4 and novel analogues, 1,25 dihydroxy vitamin D4 and 1,24 dihydroxy vitamin D4 which are useful as active compounds of pharmaceutical compositions for the treatment of disorders of calcium metabolism. Preparation of the novel 1.alpha.-hydroxy vitamin D4 starts from ergosterol which is converted in six steps to 22,23-dihydroergosterol.  22,23-dihydroergosterol was irradiated to yield vitamin D4 which is converted in four steps to 1.alpha.-hydroxy vitamin D4 using a cyclovitamin procedure which produces the novel intermediates, vitamin D4 tosylate, 3,5 cyclovitamin D4 and 1.alpha.-hydroxy cyclovitamin D4. 1,25 dihydroxy vitamin D4 and 1,24 dihydroxy vitamin D4 are isolated as biological products of the metab-olism of novel 1.alpha.-hydroxy vitamin D4 using cultured human liver cells.
Patent CA-2071412-A1 (CA)
Title: Method and apparatus for reducing track switch latency in a disk drive
Inventor: ANDERSON CLARK A
IPC: G11B19/20
Filed: 1992-06-17
Abstract: METHOD AND APPARATUS FOR REDUCING TRACK SWITCH LATENCY IN A DISK DRIVE                 ABSTRACT OF THE DISCLOSURE     In a ultra high density, multiple-disk drive, track switches within a cylinder of tracks as well as track switches to tracks on other cylinders both require a movement of the head stack actuator. Track switching latency in such a disk drive is reduced by overlapping pre-movement portions of the track switching process with the data transfer operation of the   currently   active   recording   head.   In   addition, post-movement portions of the track switching process are overlapped with the movement of the heads so that the next selected read/write head may begin a data transfer operation immediately upon arrival at the next track.   Further, the pre-movement and post-movement portions of the track-switch process may be overlapped with low displacement movement of the read/write heads relative to the currently active track or the next track.
Patent CA-2071753-A1 (CA)
Title: Method and apparatus for fastening sheets of paper together with the aid of staples
Inventor: MAGNUSSON BENGT
IPC: B65H45/16
Filed: 1992-06-22
Abstract: ABSTRACT            In an apparatus for fastening together with the aid of staples a sheet signature comprising a plurality of sheets of papers laid one upon the other, a stitching unit (15, 16) is adapted for carrying staple blanks (54) and for movement relative a die (20, 21, 22) to urge said staple blanks through the sheet signature (12) such as to form a stitch fastening. Said die is arranged on the edge of a reciprocating folding knife (2), this edge facing towards the sheet signature, said knife coac-ting with a gap (27) or the like into which the knife urges the sheet signature for folding and simultaneous stitching.            With an apparatus in accordance with the invention there is achieved that stitching, particularly of quarter folded pro-ducts, can take place in-line in the same operation as fol-ding, which enables building the apparatus into the printing press.            The invention also relates to a method of using staples to fasten together the papers in a sheet signature.
Patent CA-2071850-A1 (CA)
Title: Blood oxygenation system
Inventor: RAIBLE DONALD A
IPC: A61M1/14
Filed: 1990-10-26
Abstract: A bood oxygenation system (10) includes an oxygenator (12) for oxygenating blood and a heat exchanger (11) for regulating blood temperature. The heat exchanger includes a heat exchange coil (14) that provides a flow path for a heat exchange media, the heat exchange coil is configured to define a heat exchange zone, and the oxygenator is disposed in heat transfer relationship with the heat exchange zone in order to transfer heat between the heat exchange coil (14) and the oxygenator (12). The heat exchange coil (14) may at least partially circumscribe the oxygenator and, preferably, be helically shaped and disposed coaxially over a membrane oxygenator. In one embodiment, single or multiple hollow fiber strands (18) are wound onto a small diameter center core (25) so that the fiber segments provide spiralling helical blood-flow pathways which increase oxygen/carbon dioxide exchange by secondary flow paths.
Patent CA-2072752-A1 (CA)
Title: Catalyseurs de metallocene ionique sur support pour la polymerisation d'olefines
Inventor: HLATKY GREGORY G
IPC: C08F4/76
Filed: 1990-12-27
Abstract: Catalyseur supporté de polymérisation d'oléfines, comprenant un composant d'alliage organométallique du groupe IV-B ainsi qu'un composant d'activation ionique comprenant un cation capable de donner un proton, et un anion volumineux labile comportant une pluralité de radicaux lipophiles de sorte que l'anion est empêché stériquement de se lier de manière covalente à un cation produit par le métal du groupe IV-B de l'alliage organométallique.
Patent CA-2073610-A1 (CA)
Inventor: BOURSON LUCIEN
IPC: D21H17/05
Filed: 1992-07-10
Abstract: A method for manufacturing paper is disclosed which includes adding to the fibrous composition entering the head box: a) a mineral filler, b) a sizing agent, and c) a retention system comprised of : c) 1) cationic starch, c) 2) polyaluminum chloride, and c) 3) silica of anionic nature.          The percentages by weight of products c)1), c)2), and c)3), based on the weight of composition entering the head box, are as follows: 0.2 to 1.7%, 0.01 to 0.3% expressed as percentage of Al203, and 0.01 to 0.3% expresses as percentage of SiO2, the cationic starch having a molecular weight of 3.104 to 12.104 and a degree of substitution of 0.01 to 0.1.
Patent CA-2075040-A1 (CA)
Title: Deflection control of liquid stream during dispensing
Inventor: MATSUNAGA MASAFUMI
IPC: B05D3/04
Filed: 1991-02-15
Abstract: A method and apparatus for deflecting a liquid stream (26) during dispensing with a plurality of independently actuatable flows. A  gun (20) has a nozzle (21) with an orifice (24) for dispensing a liquid stream (26). Blowout ports (33a-33f) surround the orifice (24) and are aimed at the flow path of the liquid stream (26), just beyond the end of the gun (20). The blowout ports (33a-33f) are connected via conduits (35a-35f) to a pressurized source (37).A timer (41) actuates solenoid valves (48, 38, 39) to control liquid dispensing through the orifice (24) and the flows from the blowout ports (33a-33f). By coordinating liquid dispensing with the directional flows, the liquid stream (26) may be deflected to achieve a desired dot or spray distribution pattern on a substrate (27) or uniform spray coating of the inside surface of a can.
Patent CA-2076300-A1 (CA)
Title: Elimination of heterojunction band discontinuities
Inventor: SCHUBERT ERDMANN F
IPC: H01L33/30
Filed: 1992-08-18
Abstract: Conduction band or valence band discontinuities occurring at the junction of two unipolar heterogeneous semiconductors can be eliminated by compositional grading of the heterointerface and appropriate doping of the interfacial region. The compositional potential of a graded junction and an interface dipole potential generated by modulation doping of the interfacial region are selected such that they exactly compensate each other. The compositional grading of the interface is achieved by semiparabolic grading of narrow regions immediately adjacent each side of the interface. The modulation doping is achieved by dopingthe two materials with suitable dopants, donors for the conductance band or acceptors for the valence band, depending on the polarity of the structure. Thisreduces the resistance in periodic semiconductor multilayer structures leading to low-resistance distributed Bragg reflectors.