baber/WOPTO huggingface dataset:
Patent CA-2058732-A1 (CA)
Title: Air flapper valve assembly
Inventor: CHRISTOPHER DELBERT S
IPC: F23C15/00
Filed: 1992-01-03
Abstract: ABSTRACT OF THE DISCLOSURE The present invention relates generally to pulse combustion furnaces, and more particularly to an improved air flapper valve assembly for use in association therewith, such improved air flapper valve assembly having a valve body formed from an elastomeric material which results in significant reduction in air valve sound and vibration.
Patent CA-2059394-A1 (CA)
Title: Apparatus for performing assays using evanescent waves
Inventor: ZOHA STEVEN J
IPC: G01N21/55
Filed: 1992-01-15
Abstract: TITLE APPARATUS FOR PERFORMING ASSAYS      USING EVANESCENT WAVES ABSTRACT OF THE INVENTION This invention uses the evanescent wave detection of particles to distinguish bound from free in an analyte-binding assay.  Illumination below the critical angle is employed, and a beveled window is used to eliminate bulk fluorescence from the emitted evanescent wave liquid.  The sample is held in a non-rigid film cuvette.
Patent CA-2060608-A1 (CA)
Inventor: VIGUE HENRY R
IPC: B65D3/24
Filed: 1992-02-04
Abstract: A molded tray for holding different size containers includes a bottom wall and a peripheral side wall. The bottom wall is divided into two pair of oppositely arranged sockets with each socket being in a respective corner of the tray. One pair of sockets is constructed and dimensioned to hold containers in a certain size range while the alternate sockets are constructed and dimensioned to hold larger size containers.
Patent CA-2061411-A1 (CA)
Title: Method and device for heat transfer to water
Inventor: RODRIGUES-ELY ROBERT
IPC: F24H1/00
Filed: 1992-02-18
Abstract: ABSTRACT OF THE DISCLOSURE    A novel device is provided for transferring heat to water.          The device is used in conjunction with an open topped vessel adapted to contain water to be heated.  A novel float energizer member is adapted to float on the surface of the water.  The float energizer member comprises a cylindrical body open both at its top and its bottom, having a cylindrical peripheral wall and a median floor.  A predetermined fixed-diameter peripheral escape aperture is provided in the cylindrical peripheral wall just below the union of the median floor and the cylindrical peripheral wall.   This escape aperture serves to stabilize the float member and to permit escape of some of the gas which is trapped below the median floor.          A knob is provided, preferably centrally located, atop the median floor, the knob being provided with a central longitudinal escape bore.  This escape bore through the knob can be plugged with a plug having a selected different diameter longitudinal bore therethrough which  communicates  through  the  median  floor  to  the  ambient atmosphere.   This escape bore through the knob thus can have different diameters.  The purpose of this escape bore through the knob is to stabilize the float energizer member and to permit escape of some of the gas which is trapped below the median floor.
Patent CA-2065723-A1 (CA)
Title: Lightweight engine turbine bearing support assembly for withstanding radial and axial loads
Inventor: CIOKAJLO JOHN J
IPC: F02C7/20
Filed: 1992-04-09
Abstract: ABSTRACT OF THE DISCLOSURE   A gas turbine engine incorporates a bearing support assembly  which  mounts  an  inner  annular  bearing arrangement in radially spaced relation inwardly from a stationary outer casing.   The bearing arrangement, in turn, mounts a turbine rotor within the outer casing for  rotation  about  a  central  axis  relative to the outer casing.   A row of stationary stator vanes are fixedly attached to and extend radially inwardly from the outer casing toward the central axis.  The bearing support  assembly  includes  an  inner  ring  structure extending  about  and  mounting  the  inner  bearing arrangement,  elongated tie rods each having opposite outer and inner end portions and being disposed in circumferential  spaced  relation  to  one  another and extending  through  the  stationary  vanes  in  radial relation to the central  axis and between the outer casing and inner ring structure, and fastening elements fixedly  clamping  the  outer  casing  and  inner  ring structure  respectively  to  the  outer  and  inner end portions of the tie rods such that the tie rods, out r casing and inner ring structure act together as a unit to uniformly distribute bearing-induced radial loads and to withstand bearing-induced radial loads in both tension and compression.  An annular shell structure is disposed between and fixedly interconnects the inner ring  structure  and  stationary vanes  such that the annular structure, inner ring structure and stationary vanes act together as a unit to withstand axial loads induced by differences in air pressure existing axially through the outer casing.
Patent CA-2067257-A1 (CA)
Title: Hinge
Inventor: SAIMBENE NICOLO M
IPC: E05D5/12
Filed: 1992-04-27
Abstract: ABSTRACT OF THE DISCLOSURE           A  hinge comprises two lateral wing members adapted  to pivot  one  about  the other around an axle.   One  of  the  wing members  includes  a first one-plate flat plate having  a  flange extending  sideways along about the lower half of the  height  of the  first  plate,  the flange being bent to  form  a  completely closed first sleeve to tightly receive a cylindrical pintle.   The pintle has a portion extending above the first sleeve at a height below  the  height of the first plate.   The second  wing  member includes  a  second  one-piece plate having  a  flange  extending sideways along the upper half of the height of the second  plate.          The  flange  of  the second plate is bent to  form  a  completely surrounded second sleeve.  The flange of the first and the second plates extends towards each other and are superposed one over the other  in axial relationship.   The second sleeve has a  diameter adapted  to  slidingly fit over the portion extending  above  the first sleeve.  A flat brass ring is mounted around the pintle and is  loosely  disposed relative to the pintle and  the  first  and second  plates.   The ring has a  thickness adapted  to  maintain both lateral wing members at the same level when both are mounted on the axle.
Patent CA-2067828-A1 (CA)
Inventor: GODBOUT FERNAND
IPC: A63F1/00
Filed: 1992-04-30
Abstract: JEU DE HOCKEY La présente invention est un jeu de société permettant de simuler à l'aide de cartes spécifiques une partie de hockey.
Patent CA-2073929-A1 (CA)
Title: Random access data communication system with slot assignment capability for contending users
Inventor: KOU YUKARI
IPC: H04J3/00
Filed: 1992-07-15
Abstract: In a random access communication system comprising a central station and user stations, each user station transmits a packet to the central station on a randomly selected timeslot of a time-division multiple access channel and defines a plurality of "minislots" within the selected timeslot and transmits a burst on one of the minislots. The central station monitors the defined monislots to detect the burst transmission, and assigns as many timeslots as required if more than one burst transmission is detected within a timeslot interval. A slot assignment signal is sent from the central station to the user stations containing a negative acknowledgment of the transmitted packet. The user station from which the packet was transmitted is responsive to the negative acknowledgment to select one of the assigned timeslots and retransmit to the central station a copy of the packet on the selected assigned timeslot.
Patent CA-2081042-A1 (CA)
Title: Use of hindered amines to slow down reactivity in producing rim elastomers
Inventor: GRIGSBY ROBERT A JR
IPC: C08G18/50
Filed: 1992-10-21
Abstract: USE OF HINDERED AMINES TO SLOW DOWN REACTIVITY IN PRODUCING RIM ELASTOMERS             (D#81,071-F) Abstract of the Disclosure A process for preparing a polyurea reaction injection molded (RIM) elastomer is described. A hindered polyetherpolyamine is first obtained by reacting a polyol having two or more hydroxyl groups with an effective amount of long chain alkyl epoxide to give an at least partially hindered intermediate having hydroxyl terminations; and then aminating at least one of the hydroxyl terminations on the intermediate to primary amine groups to give an at least partially hindered polyetherpolyamine. The hindered polyetherpolyamine is then reacted with a polyisocyanate in the optional presence of a catalyst to give a polyurea RIM elastomer. The long chain alkyl group provides steric hindrance to the primary aliphatic amine group, which slows down the reactivity of the amine. The slower reactiv-ity of the amine group is useful in RIM and RRIM compositions since it allows for longer shot or flow times, which in turn permit larger parts to be made from existing equipment.
Patent CA-2081913-A1 (CA)
Title: Method and apparatus for managing page zero memory accesses in a multi-processor system
Inventor: RYAN ROBERT P
IPC: G06F12/00
Filed: 1991-06-05
Abstract: Apparatus and method for use in a multi-CPU data processing system (10) wherein each CPU (12-18) is coupled to a common bus (20) and through the common bus to a main memory (28). The method and apparatus provides a program, such as an operating system, that is operating upon each of the CPUs access to a page of data within the main memory. Each of the CPUs generates a first address for identifying a memory location or locations within a page of the main memory. The first address is modified as a function of the first address and as a function of an identification of the CPU to generate a second address for identifying a memory location or locations that are either within the same page or within another page of the main memory. The modified address is applied to the memory for accessing the memory location or locations.
Patent CA-2082849-A1 (CA)
Inventor: HABBAB ISAM M I
IPC: H04B10/293
Filed: 1992-11-13
Abstract: In an optical arrangement for amplifying an input lightwave signal by a predetermined amount to a desired output level, an optical amplifier is connected to a loss element. The optical amplifier is pumped by an amount exceeding a nominalamount wherein the nominal amount is the amount of pumping needed to attain the desired output level at the optical amplifier output. By attenuating the signal output from the optical amplifier, the loss element generates an output signal from theoptical arrangement at the desired output level. This optical arrangement is characterized by an improved noise performance (noise figure) over standard optical amplifiers.
Patent CA-2084947-A1 (CA)
Title: Compact programmable parallel processing system
Inventor: LIN TSEN-HWANG
IPC: H04B10/278
Filed: 1992-12-09
Abstract: ABSTRACT       This is a programmable processing system which comprises: one or more computer networks each of the networks has at least one population of processor nodes  50;  at least one population of storage nodes 52; and at least one switch 56 to provide transfer of information between the processor nodes 50 and the storage nodes 52.   Each processor node has  at  least  one processing module comprising spatial light modulators; processors; and at least one hologram.  Other methods and devices are disclosed.
Patent CA-2085729-A1 (CA)
Inventor: HIROKI SEIJI
IPC: H01J49/42
Filed: 1992-09-07
Abstract: The present invention relates to improvement of a quadrupole electrode for use in a mass spectrometer or the like, in which two pairs of electrode rods 1, 2, 3 and 4 formed in such a manner that the section of the opposed face of each rod is hyperbolic or circular, and each electrode rod is made of a ceramic and the surface of the electrode is coated with a coating layer 5 of a conductive metal.  Further, the present invention relates to a production process, characterized by incorporating such four electrodes at predetermined intervals. Since the electrodes are mainly made of a ceramic which is easily formable with a high dimensional accuracy, the adjustment of the positional relationship between the electrodes during assembling can be made without much effort, which enables a quadrupole electrode having a high performance to be provided with a good reproducibility at a low cost.
Patent CA-2085928-A1 (CA)
Title: Integrated optical proximity coupler
Inventor: LERMINIAUX CHRISTIAN
IPC: G02B6/125
Filed: 1992-12-21
Abstract: ABSTRACT      The coupler comprises two waveguides imbedded in a substrate and exhibiting a coupling region of length L establishing coupling coefficients (C1) and (C2) for the signals of the wavelengths (.lambda.1) and (.lambda.2) respectively.      Following the invention, the length (L) and the coefficients (C1) and (C2) are linked by the relationship:                where n and m are integers, one uneven and the other even, chosen in such a manner as to establish a pass band of predetermined width (BP1, BP2) around at least one of the wavelengths (.lambda.1) and (.lambda.2).      Application to multiplexers/demultiplexers for optical fiber telecommunications.
Patent CA-2087152-A1 (CA)
Title: Vacuum die casting process
Inventor: CAMPBELL DAVID L
IPC: B22D17/32
Filed: 1993-01-12
Abstract: A process for controlling a vacuum die apparatus during a casting operation. The process calls far testing and monitoring the pressure levels in different parts of a die casting apparatus during a casting operation, including the die cavity itself and in positive and vacuum pressure lines.      The process also includes process steps which cools a vacuum valve adjacent the die cavity and cleans the valve and lines during a casting operation. The process calls for aborting a casting operation at various time during the operation if certain measured parameters are not acceptable.
Patent CA-2087315-A1 (CA)
Title: Process for preparing substituted 2-cyanopyridines
Inventor: GIENCKE WOLFGANG
IPC: C07D213/84
Filed: 1993-01-14
Abstract: Abstract of the disclosure Process for preparing substituted 2-cyanopyridines Compounds of the formula I                               in which R1  is H, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy-carbonyl, alkoxyalkyl, phenyl, benzyl or phenoxy-alkyl,  it  being possible  for  the  three  latter radicals to be substituted in the phenyl moiety;            R2   is H, alkyl, alkenyl, alkynyl, haloalkyl or alkoxy-carbonyl;            R3   is H, alkyl, alkenyl, alkynyl, haloalkyl, alkoxy-carbonyl, phenyl, phenoxy, benzyl, it being possible for the three latter radicals to be substituted, or alkoxy; and R4   is H, alkyl, alkenyl, alkynyl, haloalkyl or alkoxy-carbonyl;   or R1  together with R2 is  a saturated chain,  and the remaining radicals are as defined above;   or R1   together  with  R2  is  a  chain  of  the  formula -CH=CH-CH=CH-, which may be substituted, and the remaining radicals are as defined above;     or R3   together  with  R4  is  a  chain  of  the  formula -CH=CH-CH=CH-, which may be substituted,  and the remaining radicals are as defined above;   are  valuable  intermediates  in  the  preparation  of phamaceuticals and crop protection agents.          The process according to the invention yields compounds of  the  formula  I  by  reacting  a  substituted  1-alkoxypyridinium salt of the formula II,   in which R1 to R4 have the same meaning as in formula I and R5   is alkyl, alkenyl, alkynyl, benzyl or trialkylsilyl and X    is a leaving group; together with a cyanide of the formula III            M(CN)m   (III), in which M    is alkali metal, alkaline earth metal or copper and m is 1 or 2, in a polar, aprotic solvent or mixture of solvents.
Patent CA-2087571-A1 (CA)
Title: Self-locking safety syringe
Inventor: MARTIN ROBIN P
IPC: A61M5/32
Filed: 1993-01-19
Abstract: ABSTRACT OF THE DISCLOSURE   The invention relates to a safety syringe to prevent accidental puncturing of attending medical personnel by an infected syringe needle. The safety syringe has an elongated tubular casing, which houses an elongated needle guard, which is telescopically connected to the casing and is mounted in co-axial alignment with the casing. A syringe barrel is co-axially mounted within the needle guard, the syringe barrel carrying a needle assembly on one of its ends, and an end plate on its opposite end. The end plate "snaps" into a groove formed in a transverse flange of the casing, fixedly attaching the syringe barrel to the casing. A sealing plate covers the locked end plate by engaging within another groove formed in the flange. Oneor more resilient depressible locking tabs are carried by the needle guard and extend through corresponding aligned openings formed in the casing to lock the needle guard in an extended position covering the needle. When the locking tabs are depressed, and an inward pressure is exerted on the forward end of the needle guard, the needle guard can be moved against the tension of a coil spring insidethe casing and uncover the syringe needle to allow withdrawing of medication from the medicine bottle, or performing of an injection.
Patent CA-2089564-A1 (CA)
Title: A mop head comprising a holder insertion aid
Inventor: KRESSE FRANZ
IPC: A47L13/24
Filed: 1991-08-03
Abstract: A mop head is disclosed for the wet or damp cleaning of floors comprising an elongate textile support layer with holder insertion pockets having openings arranged on top at either end thereof and material arranged underneath in the form of tufts, fringes, loops, sponge cloth strips or the like for taking up dirt and moisture, wherein the holder insertion pocket comprise 0.5 to 10 mm thick strips of a water-absorbing, swellable and elastic material in the region of the pocket opening.
Patent CA-2090089-A1 (CA)
Inventor: HAGAN DESMOND B
IPC: A61K8/42
Filed: 1993-02-22
Abstract: ABSTRACT OF THE INVENTION     The invention provides a cleansing composition, which comprises in addition to water,  (a)  from 10 to 30% by weight of one or more C6 to C16 acyl lactylates and (b) from 5 to 25% by weight of one or more co-surfactants, such as acyl    taurates,    isethionates,    sarcosinates    and sulphosuccinates.  The cleansing compositions are primarily intended to be used as personal washing products, such as facial wash foams, bath foams and hair shampoos.
Patent CA-2090899-A1 (CA)
Title: Outboard propeller guard
Inventor: KROEBER KENNETH
IPC: F02B61/04
Filed: 1993-03-03
Abstract: ABSTRACT OF DISCLOSURE         Two angle brackets secure a severely swept plas-tic wing-like propeller guard to the sides of the motor housing or skeg.  The left and right wing-like projections have a horizontal center wing segment oriented parallel the axis of propeller rotation, and upturned outer wing segments that are provided in the plane of propeller rota-tion.
Patent CA-2090996-A1 (CA)
Title: Method for separating sheets of paper stacked in reams and device for implementing this method
Inventor: WYSSMULLER PHILIPPE
IPC: B65H1/00
Filed: 1993-03-04
Abstract: The method consists, while the ream is applied against a curved surface, in exerting pressure forces against the outer sheet of said ream, along a line of application parallel to the generatrices of the curved surface, moving this line over the entire length of the ream, and beyond each of the edges of the sheets, thereby releasing the sheets. The intensity of the pressure forces enables the sheets to be kept against the curved surface and the speed of movement of the line of application is adjusted in order for the released sheets successively to move away from the remaining curved sheets, thereby re-establishing a plane ream, this reformed ream being jogged.
Patent CA-2092617-A1 (CA)
Title: Bioreductive agents
Inventor: ADAMS GERALD E
IPC: A61K31/495
Filed: 1993-03-12
Abstract: ABSTRACT                 NOVEL BIOREDUCTIVE AGENTS          Quinoxaline or pyrido pyrazine derivatives of formula (I)                 (I) wherein R' is:      hydrogen, alkyl, alkylamino, dialkylamino, aminoalkylamino unsubstituted or substituted on the terminal amino group by one or two alkyl groups, aminoalkyl(N-alkyl)amino unsubstituted or substituted on the terminal amino group by one or two alkyl groups, hydroxyalkylamino, hydroxyalkyl(N-alkyl)amino, haloalkylamino, haloalkyl(N-alkyl)amino;  a heterocyclic group which is a 1-pyrrolidino, 1-piperidino, 1-morpholino group, unsubstituted or substituted by one or more alkyl, hydroxy or halogen substituents, or an aziridino group unsubstituted or substituted by one or more or alkyl substituents; or a 1-piperazino group which is unsubstituted or substituted by one or more alkyl, hydroxy or halogen substituents in the 2- or 3- position and in the 4-position is unsubstituted or N-substituted by haloalkyl, cycloalkyl of 5 to 7 carbon atoms (unsubstituted or substituted by one or more alkyl, hydroxy or halogen substituents), or pyridyl (unsubstituted or substituted by one or more alkyl, haloalkyl, hydroxy, alkoxy, nitro or halogen substituents) or phenyl (unsubstituted or substituted by one or more alkyl, haloalkyl, hydroxy, alkoxy, nitro or halogen substituents), R' is a hydrocarbyl or heterocyolyl aromatic group unsubstituted or substituted by one or more substituents selected from halogen haloalkyl, alkyl, nitro, hydroxy, alkoxy and alkylenedioxy;    X is -CH- or -N-; and X' is hydrogen or halogen; wherein the said alkyl groups and moieties incorporating alkyl groups contain form 1 to 6 carbon atoms and the said haloalkyl groups contain one or more halogen atoms:      and pharmaceutically acceptable salts thereof are useful in the treatment of tumours, and in particular hypoxic tumours.      Processes for producing the compounds and pharmaceutical compositions comprising them.      Pharmaceutically acceptable salts of 1,2-dihydro-?-*piperazinyl-4-phenylimidazo pyridopyrazine oxides and 1,2-dihydro-8-piperazinyl-4-phenylimidazo quinoxaline oxides and 4-pyrido also are useful in the treatment of cancer and in particular in the treatment of hypoxic tumours.  Processes for their preparation and pharmaceutical compositions containing them.
Patent CA-2097194-A1 (CA)
Title: Polyphase switched reluctance motor
Inventor: HENDERSHOT JAMES R
IPC: H02K19/10
Filed: 1991-11-22
Abstract: A switched reluctance motor driven by a polyphase source includes a stator (3) having a yoke (6) and a plurality of evenly spaced salient poles (9, 10) distributed about the yoke (6) and a rotor (1) mounted for rotation relative to the stator (3) having a plurality of unevenly spaced salient poles (5). The geometry of the stator (3) and rotor (1) is such that each of the stator poles (9, 10) is separated from an adjacent stator pole (9, 10) by an angle a1 and the poles (5) of the rotor (1) are alternately spaced from adjacent rotor poles (5) by angles a1 and a2. Windings (7) associated with the poles of the stator are connected to be driven by a polyphase source such that two phases (A, B) of the source are energized simultaneously. The simultaneous energiza-tion of two phases results in pairs of adjacent stator poles being magnetized with opposite polarity, thereby forming a mag-netic circuit (36) whose path includes only the portion of the yoke bridging the two adjacent stator poles of a pair. The motor of the invention provides substantially improved torque performance relative to a conventional switched reluctance motor of the same size, while also providing improved efficiency.
Patent CA-2098560-A1 (CA)
Title: Medical isotope production reactor
Inventor: BALL RUSSELL M
IPC: G21G4/08
Filed: 1993-06-16
Abstract: ABSTRACT OF THE DISCLOSURE     Medical isotopes are produced using a low power, low cost nuclear reactor which permits the use of all the  fission  products  produced  in  the  reactor. Medical isotope  such as Molybdenum-99 are produced in a reactor operating at a power of 200 kilowatts. Medical isotopes can be produced from both the water boiler type reactor and the gas-cooled type reactor by using  a homogeneous  fissionable material  for producing a fission product which can be separated, filtered  and purified  for  obtaining  the medical isotopes.