baber/WOPTO huggingface dataset:
Patent CA-2023059-A1 (CA)
Title: Lock-up piston plate for recirculating flow torque converter
Inventor: VIERK DAVID T
IPC: F16D13/72
Filed: 1990-08-10
Abstract: LOCK-UP PISTON PLATE FOR RECIRCULATING FLOW TORQUE CONVERTER                     Abstract of the Disclosure A piston plate for providing a lock-up of a hydropneumatic torque transmitting unit has a friction lining bonded to a flat area thereon near the outer diameter which is arranged to slip with respect to the front cover of a rotating housing of the torque converter.  The friction lining has an annular sealing segment to seal fluid leakage across the lining; and a plurality of grooves is formed from the outside diameter of the lining to an intermediate point on the width to communicate through an axial hole in the piston plate to provide a path for flow of cooling fluid through the lining for removing heat build up therefrom; the source of the cooling fluid also is the fluid source for applying pressure to the plate for providing lock-up in the torque transmitting unit.
Patent CA-2024097-A1 (CA)
Inventor: LOKKEN ERNEST C
IPC: A01D41/14
Filed: 1990-08-28
Abstract: ABSTRACT          Disclosed herein is a device for indicating the height of a moveable platform with cutting bar of a harvesting machine above the terrain over which it passes in carrying out its function. The indicating device is mounted on a fixed operators cab or the frame of the harvester and includes a scale with indicia.  Attached by a cable to the moveable platform is one end of an indicating rod slideably received, and spring biased within the body of the device so that upon movement of the platform relative to the cab or frame the free end of the rod gives a reading on the indicia.  In a further embodiment to be used on a different type of harvester the attaching cable is encased in a sheath to enable force transfer at various angles.
Patent CA-2024971-A1 (CA)
Title: Naphthalene derivative and preparation method thereof
Inventor: HAZATO ATSUO
IPC: C07C69/738
Filed: 1990-09-10
Abstract: ABSTRACT OF THE DISCLOSURE A naphthalene derivative having the formula (I): (I) wherein R1 represents a hydrogen atom, a C1-C5 alkyl group or a non-toxic salt moiety; R2 and R3 independently represent a hydrogen atom or -OR4 where R4 represents a hydrogen atom or a C1-C3 alkyl group; A represents a group: or [where X1 and x2 represents an oxygen atom or N-OR5 (where R5 represents a hydrogen atom or a C-1-C3 alkyl group)], a group: [where Y1 and Y2 independently an oxygen atom or a group N-OR5 (where R6 represents a hydrogen atom or a C1-C3 alkyl group)], or a group: (where n is 0 or 1); and B represents -(CH2)m-wherein m is an integer of 1 to 8, -(CH2)m1 -O-(CH2)m2 -wherein m1 and m2 are independently 1 or 2, or wherein m3 is 0 or 1.
Patent CA-2025016-A1 (CA)
Title: Process for the conversion of olefins to alcohols and/or ethers
Inventor: MARLER DAVID O
IPC: C07B61/00
Filed: 1990-01-10
Abstract: Olefins are converted to alcohols and/or ethers employing, as catalyst, an acidic zeolite which has been bound with an essentially non-acidic refractory oxide of at least one metal of Group IVA  and/or IVB of the Periodic Table of Elements, e.g., silica, titania, zirconia and/or germania.
Patent CA-2025055-A1 (CA)
Title: Capillary tube for taking blood samples
Inventor: BOLLIGER JEAN-PIERRE
IPC: B01L3/00
Filed: 1990-09-11
Abstract: A capillary tube for taking capillary blood samples for a system for measuring the coagulation time.     In order to reduce the risk of infection for the laboratory staff and to simplify the work of taking and processing the capillary blood samples, the capillary tube is made of plastic and a lyophilizate (14, 15, 16) is approximately uniformly distributed in its interior and along its entire length, the lyophilizate being obtained by freeze-drying a mixture containing an anti-coagulant and at least one high-molecular additive.
Patent CA-2025999-A1 (CA)
Title: Hydraulic rock-crusher
Inventor: HOCHEGGER GOTTFRIED
IPC: B02C1/10
Filed: 1990-09-24
Abstract: Abstract of Invention The hydraulic rock-crusher combined feed screen, primary and secondary crushing. A double acting swinging beam --3-- has a primary and secondary reduction of 1/20. A mached-split up pressure through hydraulic cylinder --2-- and exciter --5--combine high production, economy of operation and lower costs. A bar screen jaw --7-- in the crushing space is to improve the frozen rock productivity. Crushing-levers --1-- can have a feed bar screen for removal of fine material.
Patent CA-2027211-A1 (CA)
Title: Casing circulator and method
Inventor: JORDAN RONALD A
IPC: E21B21/10
Filed: 1990-10-10
Abstract: Improved methods and apparatus  are provided for sealing at the uppermost end of a casing string to provide circulation from adjacent the lower end of the casing string and into a well bore to enable the casing string to be more easily lowered into the well bore.  A casing circulator is provided for lowering into the uppermost end of the casing string above the rig floor, and for sealing with an interior surface  of  the  uppermost  end  of  the  casing  string.  An external  sealing member  of  the  casing circulator may be moved axially with respect to an inner packer tube, thereby allowing the sealing member to become inflated while also enabling fluid to pass  through the casing circulator and into  the  casing  string.   The  techniques  of  the  present invention may also be used to fill the casing string as it is lowered into the well bore.
Patent CA-2028672-A1 (CA)
Title: Process for recording an image, a film structure therefor and its application
Inventor: TSUSHIMA HIROSHI
IPC: G03F7/20
Filed: 1990-10-26
Abstract: ABSTRACT OF THE DISCLOSURE        The present invention provides a new process for recording an image by using the above mentioned phenomenon.  The process comprises (i) inserting an anisotropic molecular oriented film between two polarizing film of which polarization directions are parallel or perpendicular to each other, so that the anisotropy of said anisotropic molecular oriented film forms an angle of 45 ° to the polarization directions of said polarizing film, and (ii) completely or incompletely degrading the anisotropy of an image portion in said anisotropic molecular oriented film.
Patent CA-2028992-A1 (CA)
Title: Insulating Wall Panel
Inventor: BELIVEAU JEAN LOUIS
IPC: E04B2/08
Filed: 1990-10-30
Abstract: An insulating panel having at least two parallel sides. Along a first one of the parallel sides there is a multiplicity of male-female elements.  On a second side parallel to the first one side,  there is a multiplicity of female-male elements sized and proportioned for engaging the corresponding elements of another similar insulating panel abutted in side-to-side relationship thereto.   Such multiplicities of male and female elements are engageable in a tight fit relation to cooperate in between said abutted panels as to produce a homogeneous force distribution along the side of adjacent panels and thereby to increase the effective shearing strength of such insulating panels.
Patent CA-2029920-A1 (CA)
Title: Strap wrench
Inventor: GREENAWALT STEVEN C
IPC: B25B13/52
Filed: 1990-11-14
Abstract: ABSTRACT OF THE DISCLOSURE    A strap wrench for engaging a workpiece.  The strap wrench includes a housing having a first side, a second side, a top and a bottom.  A cam means is pivotally mounted in the housing.  The cam means has a first end and a second end and, when pivoted, the first end and the second end of the cam means approach the respective sides of the housing. A flexible strap means having a first end, a second end and an intermediate portion is provided.  The ends of the strap means are received in the housing, passing through the housing to form a loop in the intermediate portion of the strap means.  The cam means may be pivoted to engage the strap means between the respective ends of the cam means and the respective sides of the housing such that the loop in the strap is securely about the workpiece.  An opening through the cam means communicates with openings in the top and in the bottom of the housing.  A wrenching means may be inserted into opening in the cam means for pivoting the cam means and for moving the workpiece concomitantly with the strap wrench.  The cam means further has a bore extending longitudinally from the second end towards the first end of the cam means.  A tool may be received in the bore in the cam means to pivot the cam means and to move the workpiece.  The cam means may also have grooves thereon to cooperate with grooves on the strap means.
Patent CA-2030132-A1 (CA)
Title: Self-draining backflow prevention valves
Inventor: KING JOSEPH A
IPC: E03C1/10
Filed: 1990-11-16
Abstract: ABSTRACT OF THE DISCLOSURE   The present invention comprises an automatic self-draining backflow prevention valve having an internal cylindrical resilient sleeve that expands or contracts in response to water pressure to coact with a two way valve that provides for automatic self-draining of both the water faucet and the backflow prevention valve when the water faucet is shut off.
Patent CA-2032823-A1 (CA)
Title: Denture adhesive composition
Inventor: KUMAR LORI D
IPC: A61K6/00
Filed: 1990-12-20
Abstract: ABSTRACT OF THE DISCLOSURE A denture adhesive base composition comprising  a substantially anhydrous mixture of a mixed Na/Ca salt of methyl     vinyl      ether-maleic     acid,      sodium carboxymethylcellulose, and a trivalent cation.   A denture adhesive composition including this base composition is provided,  as well as a method for formulating the novel adhesives of the invention.
Patent CA-2035470-A1 (CA)
Inventor: VAUGON MICHEL
IPC: A61K8/00
Filed: 1990-06-20
Abstract: 2035470 9100088 La présente invention a trait à une nouvelle utilisation en thérapeutique humaine ou vétérinaire, d'une part, et en cosmétique et dermopharmacie, d'autre part, d'un composé choisi parmi l'ensemble constitué par (a) les 1-phényl-2-aminoéthanols de formule (I), dans laquelle R et R', identiques ou différents, représentent chacun l'atome d'hydrogène, un groupe alkyle en C1-C4, benzyle ou .alpha.-phénéthyle, Z représente un groupe alkyle en C1-C5 ou cycloalkyle en C3-C6, et (b) leurs sels d'addition non-toxiques. La nouvelle utilisation en thérapeutique concerne le domaine de la cicatrisation des plaies et la nouvelle utilisation en cosmétique ou dermopharmacie concerne le domaine de l'amélioration de la texture de la peau.
Patent CA-2035820-A1 (CA)
Inventor: KOBAYASHI KAZUHIKO
IPC: H03F1/34
Filed: 1991-02-06
Abstract: ABSTRACT OF THE DISCLOSURE          An amplifier circuit includes a high-gain amplifier, and a feedback circuit for extracting an unstable output having a level equal to or less than a threshold level from an amplified signal from the amplifier and for feeding back the unstable signal to the amplifier, so that the amplifier oscillates at a predetermined oscillation frequency.  The amplifier circuit also includes a band rejection filter for passing signal components of the amplified signal other than an oscillation output which is obtained at the output terminal of the amplifier when the amplifier oscillates at the predetermined oscillation frequency. The signal components obtained from the band rejection filter are an output signal of the amplifier circuit.
Patent CA-2039118-A1 (CA)
Inventor: JEANDEL MICHEL
IPC: A47B57/36
Filed: 1991-03-26
Abstract: : Système de rayonnage à plateaux amovibles (13) comprenant des paires (1) de piliers verticaux (2) reliés par des barreaux transversaux (3), caractérisé en ce que les piliers (2) d'une paire (1) sont munis sur leur face en regard (4) d'excroissances (6), régulièrement réparties sur lesquelles sont posés des cavaliers (8) pouvant être retirés uniquement en les soulevant. Les cavaliers (8) sont munis d'un ou de deux renflements d'accrochage latéraux (9) dépassant du piètement de la paire (1) de piliers (2) et coopérent avec un évidement (15) situé dans chaque coin (14) de chaque plateau (13) pour supporter ledit plateau (13). Facilité de montage et de démontage des plateaux sans outil et nettoyage aisé. FIGURE A PUBLIER: Figure 1.
Patent CA-2042600-A1 (CA)
Title: Process and device plus winder core for the production of pipe fittings made of fibre-reinforced plastic
Inventor: LONA NORBERT
IPC: B29C53/58
Filed: 1990-10-04
Abstract: A b s t r a c t An inner gel coat is poured around a core (11) which is separable into several pieces.  The inner gel coat is cured by heating.  The core (11) is clamped to the head (39) of a robot (49).  A glass fibre web (46) impregnated with liquid plastic is wound in an overlap-ping manner in several layers around the inner gel coat in a winding station (38).  The plastic of the fibre web (46) is cured by heating and finally an outer gel coat is applied around the layers of fibre web and cured.  Sub-sequently the core (11) is removed from the fitting.  In this manner, a fitting of high, uniform quality can be economically produced.     (Fig. 3)
Patent CA-2042729-A1 (CA)
Title: Device for forming a cut in breast and belly of a slaughtered animal carcass
Inventor: BEKKERS MARINUS F L
IPC: A22B5/20
Filed: 1991-05-16
Abstract: ABSTRACT OF THE DISCLOSURE            Device for forming a cut in breast and belly of a slaughtered animal carcass.            Device for forming a cut in breast and belly of the carcass of a slaughtered animal comprising a mandrel, a cutting blade and two pressure rollers lying on either side of the mandrel engaging the rear side of the carcass near the head, each roller being fitted at the first end of an arm which at the other end is connected to a carrier situated beside the mandrel and extendable in the direction of the carcass, which arms can each be swung about the longitudinal axis of the carrier the roller being provided with a disc-shaped flange right angles to the roller axis.
Patent CA-2046445-A1 (CA)
Title: Delivery system with a protective sleeve
Inventor: MAGRUDER JUDY A
IPC: A61M5/148
Filed: 1991-07-08
Abstract: DELIVERY DEVICE WITH A PROTECTIVE SLEEVE                  ABSTRACT OF THE DISCLOSURE     This invention relates to an active agent delivery device. More particularly, the invention relates to a delivery device that includes a sleeve to protect the delivery device from transient mechanical forces.  The delivery device of the invention is robust and resistant to transient mechanical forces.      The invention provides a fluid-imbibing delivery device [10] comprising a housing [11] enclosing an internal compartment [18], said housing having a first wall section [12a] that substantially restricts the passage of fluid into the delivery device [10], i.e. is substantially fluid-impermeable, and that contains a beneficial agent [20]; a second wall section [12b] that permits the passage of fluid into the delivery device [10], i.e. is fluid-permeable, and that contains at least one expandable driving member [25]; and exit means [13]; with a protective sleeve means [30] extending from the first wall section [12a] of the housing [11] to cover and protect the second wall section [12b] of the housing [11] and the junction of the first and second sections.  The protective sleeve [30] is preferably configured to provide substantially no resistance to flow of fluid or fluid vapors through the fluid-permeable second wall section [12b].
Patent CA-2046465-A1 (CA)
Inventor: THOMPSON PETER
IPC: F04D29/16
Filed: 1991-07-08
Abstract: A multi-stage centrifugal pump with an axially split casing (10) and a number of impellers (14) carried by a drive shaft (12) has inter-stage bushings (24) and rings (22) for sealing each side of each impeller. Each bushing (24) or ring (22) is conventionally prevented from rotating by a radial pin protruding from the lower half of the casing (10) into an axial slot in the periphery of the bushing or ring. The pin is necessarily small and is liable to shear, difficult to engage in the slot and, in cases where the bushing (24) or ring (22) is diametrically split, does not allow rotation of the lower half for its removal without lifting the shaft (12). To avoid all these disadvantages, the exposed end (37) of a tangential pin (32) fitted in the casing (10) is flush with the join face (28) of the casing and abuts against a shoulder (44) formed by a recess (38) in the periphery of the bushing (24) or ring (22). This pin (32) can be larger than the known radial pin and is subjected to compression, not shear. <IMAGE>
Patent CA-2047392-A1 (CA)
Title: Electrochromic compositions based on diketopyrrolopyrroles
Inventor: MIZUGUCHI JIN
IPC: C07D487/04
Filed: 1991-07-18
Abstract: Novel electrochrornic compositions based on diketopyrrolopyrroles Abstract Compositions containing (a) al least one 1,4-diketopyrrolo[3,4-c]pyrrole of the formula I, II, IIa, III or IY                (I)                  (II)          (IIa)                (III)             (IV) and (b) an auxiliary redox system from the ferrocyanide, ferrocene or ammonium iron(II) sulfate series in combination with at least one conductive salt (c), where, in the formula I, R and R2 are, for example, -H and Rl is -SO3Na, in the formulae II and IIa, R and R3 are, for example, -H, Rl is -SO3H and p is 3, in the formula III, R4 and R5 are, for example, phenyl and R6 and R7 are, for example, methyl, and in the formula IV R8 and R9 are, for example, phenyl, are suitable as electrochromic materials in display systems.
Patent CA-2047582-A1 (CA)
Title: Aqueous, developable photocurable composition, process of making thereof and flexible photosensitive articles made therefrom
Inventor: MIRLE SRINIVAS K
IPC: G03F7/028
Filed: 1991-07-23
Abstract: ABSTRACT OF THE DISCLOSURE      A photocurable composition P(Y)(Y1)(Y2) is prepared by reacting a solid carboxylated copolymer P(Y) having at least one pendent carboxyl group Y, and optionally one or more terminal carboxyl groups Y, with (i) a photosensitive vinyl-containing compound, e.g. glycidyl (meth)acrylate, which produces Y1 and optionally, with (ii) an anhydride, e.g. maleic anhydride, to produce Y2. Y1 has free vinyl groups and Y2 has free vinyl and acid groups.  In addition, P(Y) can be a liquid carboxylated copolymer which is chain extended in order to prepare a solid.  Either of the resulting photocurable compositions can be used "as is" or can be formulated with vinyl containing monomers and photoinitiators to prepare solid, flexible photosensitive articles, e.g. flexographic printing plates, which are water dispersible, and yet possess acceptable mechanical properties for flexographic printing.
Patent CA-2048584-A1 (CA)
Inventor: BJERK GARY E
IPC: B60P1/64
Filed: 1991-08-07
Abstract: A   material   handling   apparatus   includes   a tractor/trailer vehicle which can mount and dismount ore receiving containers, which can transport the containers between  a collection site and a deposit site and  which can  dump  ore out of a container at the  deposit  site.          Each container defines a housing with an interior and an open rear area.  A tailgate assembly includes a pair  of bell crank arms pivotally secured on either side of  the container  and  a  tailgate mounted  between  first  arm portions  thereof  to  close  the  open  rear  area.   A transport  frame, preferable on the trailer  section  of the  tractor/trailer  vehicle, defines a support  for  a tiltable  bed pivoted mounted on a rear portion  of  the frame.  A linkage assembly is centrally mounted on  each side  of  the  tiltable bed and  each  linkage  assembly includes  a  cam  member  driven  by  a  pair  of  first hydraulic cylinders.  Actuation of these cylinders first causes  the  cam  members  to  act  against  second arm portions  of the bell crank arms to raise  the  tailgate after which, and upon abutment with a limit stop  block, continued actuation tilts the bed to dump ore out of the container.  A hydraulically actuated lift arm is used to mount  and  dismount  each container  from  the  trailer section.
Patent CA-2049052-A1 (CA)
Inventor: WENDELBORN DIETER
IPC: A61B5/154
Filed: 1990-12-19
Abstract: ABSTRACT   A blood sampling device comprises a pointed cannula (3, 23) at each end, a pre-evacuated sample container (1,21) with a self-sealing stopper (2, 22) which can be perforated, a self-sealing membrane (8, 28) which can be perforated and a blood-viewing chamber (7, 27) the walls of which are surrounded by transparent material arranged in front of the stopper (2, 22) in the direction of perforation. The chamber (7, 27) is arranged on the stopper (2, 22) and is sealed off essenteally from the sample container (1, 21) by said stopper (2, 22) and from the patient by the membrane (8, 28).
Patent CA-2051023-A1 (CA)
Title: Arc lamp assembly with improved containment
Inventor: PARROTT RICHARD A
IPC: H01J61/34
Filed: 1991-09-10
Abstract: Abstract of the Disclosure ARC LAMP ASSEMBLY WITH IMPROVED CONTAINMENT     A metal halide arc lamp assembly has a configuration which provides improved containment performance in the event that the arc tube bursts. The lamp assembly includes a metal halide arc tube, a cylindrical quartz shroud surrounding the arc tube and a sealed outer envelope enclosing the shroud and the arc tube.  The arc tube has press seals with a generally I-shaped cross section.  The maximum dimension of the press seals perpendicular to the arc tube axis is not substantially greater than the maximum dimension of the bulb portion of the arc tube.  The spacing between the outside surface of the bulb portion and the inside surface of the shroud is not greater than about three millimeters.
Patent CA-2051824-A1 (CA)
Inventor: FRITSCH GEORG
IPC: H01C1/14
Filed: 1991-09-19
Abstract: ABSTRACT OF THE DISCLOSURE       A thermistor having negative temperature coefficient in multi-layer technology is formed of a cuboid, monolithic member sintered from a plurality of layers.   The layers are formed of fine-particle ceramic material provided with alternating metal coats as internal electrodes and with external metallizations.  The metal coats are applied by printing (silk screening) and contain at least one precious metal, particularly an element from the group Ag, Au, Pd, Pt, as a critical constituent.
Patent CA-2052159-A1 (CA)
Title: Road vehicle for spreading pavement repair materials, with integral compactor
Inventor: CHAPPAT MICHEL
IPC: E01C19/27
Filed: 1991-09-24
Abstract: This vehicle comprises, mounted on a carrier chassis, a reception device (6) for the material, a transfer device for the latter towards a distribution member (12), a reservoir (25) for bonding product (3), a dispensing boom (16), and a motorisation unit (21). 
<??>The chassis comprises a part (17) located to the rear of the distribution member (12, 32) for the material and mounted on rolls or balls (20a, 20b, 20c), independently of the rolling elements (14) of a front part (7), and on which is arranged at least the motorisation unit (21), the reservoir (25, 34), or the control and transmission means (22) so that their own weight exerted on this part (7) renders it capable of forming a roller. 
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Patent CA-2053736-A1 (CA)
Inventor: INOUE KANAME
IPC: C12N1/02
Filed: 1991-10-22
Abstract: A method for separation and recovery of polymeric beads from an antibiotic fermentation broth comprising sus-pending a mixture of the beads and any inherent mold from the fermentation in an aqueous solution having a specific gravity which is effective to cause the beads to form a discrete layer at or on the surface of the solution, separate and apart from the mold.  The separate layer of the beads may then be easily removed from the liquid by a conventional physical methods.
Patent CA-2054708-A1 (CA)
Title: Process for making 2-oxazolines
Inventor: FRISTAD WILLIAM
IPC: B01J31/12
Filed: 1990-04-19
Abstract: ABSTRACT   A process for making 2-oxazolines substituted in the 2 position by aryl or aralkyl substituting C4-C6-alkyl groups, hydroxy- or alkoxy-substituted C1-C6-alkyl groups or alkoxy-alkoxy methyl groups, produces the compounds of the title in large quantities if carboxylic acids of the formula R1-COOH, where R1 is one of the above substitutes, or esters or glycerides thereof are caused to react with 2-amino ethanol or ethanol amides of these carboxylic acids in the presence of titanium or zirconium compounds of the M(OR3)4 type (M = Ti or Zr).