baber/WOPTO huggingface dataset:
Patent CA-2049024-A1 (CA)
Title: Supply valve and arrangement for fire suppression water sprinkler system
Inventor: MCHUGH GEORGE J
IPC: G01F1/28
Filed: 1990-03-08
Abstract: A supply valve (36) and an arrangement for supplying, testing and draining a fire suppression water sprinkler system in-cludes a supply valve (36) which has a valve member (84) with at least first (140), second (144) and third (146) ports. The selective rotation of the valve member (36) varies communication between the inlet (66) of the valve and one or more outlets (64, 68) for the valve. A sensor (38) for detecting a flow of water through the supply valve is provided within valve member (36) and has a mem-ber (120) which is generally aligned with a turning axis of the valet member.  The flow sensor arrangement may be provided in a valve of general utility.
Patent CA-2049344-A1 (CA)
Title: Centrifugal flotation apparatus and method
Inventor: CAMPBELL THOMAS P
IPC: B03D1/14
Filed: 1990-03-06
Abstract: The apparatus includes a powered bowl assembly having a tubular shaft journalled within a base of the apparatus. A pressurized air flow is discharged into slurry in the bowl assembly via a circular array of bubble generators. An impellor discharges the slurry outwardly against an upwardly inclined annular surface of the bowl assembly to cause the slurry to merge upwardly with the streams to promote flotation. Slurry within the bowl assembly forms a vortex with particle flotation forming a froth layer inwardly of a slurry vortex. The froth exits the bowl assembly upwardly past a barrier partially closing the bowl assembly. Heavier gangue particles exit via an outlet about the bowl assembly periphery. A collector shroud is partitioned to receive the froth and the heavier waste material. A modified form of the apparatus includes an independently powered bowl assembly and impellor.
Patent CA-2049968-A1 (CA)
Title: Blow moulding multiple walled articles
Inventor: KOSMAKOS GEORGE
IPC: B29C49/22
Filed: 1990-03-22
Abstract: ABSTRACT OF THE DISCLOSURE           A method and apparatus are disclosed for producing a hollow article having a plurality of spaced generally concentric walls extending from a common neck.  To produce the article, a preformed inner vessel defining the inner wall and neck is juxtaposed with a mouldable sheet extrusion.  Split mould segments are closed around the extrusion to form a substantially sealed parison therein with an annular portion of the parison extending closely around the neck of the inner vessel.  Fluid pressure medium is introduced via conduit into the space between the inner vessel and the parison to blow mould the outer wall against the moulding surfaces of the mould segments.  During the blow moulding, the interior of the inner vessel is pressurized with fluid pressure medium via conduit to prevent its deformation.
Patent CA-2053221-A1 (CA)
Title: Method of forming a photographic colour image
Inventor: MARSDEN PETER D
IPC: G03C7/44
Filed: 1990-04-24
Abstract: A method of forming a dye image in a photographic silver halide element containing a dye-providing compound and having in a layer thereof an imagewise distribution of catalytic silver which comprises the step of treating the material with a redox amplifying solution comprising a reducing agent and a redox amplification oxidant characterised in that the redox amplification oxidant is removed from the solution after use and the so-treated solution is re-used after the addition of fresh redox amplification oxidant.
Patent CA-2054579-A1 (CA)
Title: Magnetic hybrid interleaved head and method of making
Inventor: DENISON EDWARD V
IPC: G11B5/265
Filed: 1991-10-31
Abstract: An interleaved head is disclosed for reading and writing data transitions onto a magnetic tape.  A magnetic recording system is disclosed for the bi-directional transportation of the tape media across the interleaved head.  A controller controls  the  tape  drive  in  a  reel-to-reel  format  to accomplish the bi-directional motion of the tape media.  The interleaved  head  includes  two  modules  with  each  module having a plurality of alternating read and write transducers alternately  spaced  apart  along  a  single  line  placed transverse to the movement of the magnetic tape.  The two modules are placed together such that the write gaps of one module are aligned with the read gaps of the other module. Each  read module  includes  the magneto-resistive  element. Each write transducer includes a thin film conductor driving a nickel zinc ferrite substrate as one pole piece and a nickel zinc closure piece as the  second pole piece.   In order to provide leveling across the write transducers of the module, write back gap islands are provided in the back gap  regions  of  the  write  transducer  made  of  the  same material with the same thickness as the magneto resistive element  and  the  conductors  interconnecting  the  magneto resistive  element to  the  read/write network of the  tape drive.
Patent CA-2059244-A1 (CA)
Title: Sealing members for gas preheaters, and sealing structures using such sealing members for gas preheaters
Inventor: SEIKE SHOJI
IPC: F28D19/04
Filed: 1992-01-13
Abstract: SEALING MEMBERS FOR GAS PREHEATERS, AND SEALING STRUCTURES USING SUCH SEALING MEMBERS FOR GAS PREHEATERS                  ABSTRACT OF THE DISCLOSURE        A sealing member is adapted to seal a gap between an outer peripheral portion of a rotor and a housing of a gas preheater or a gap between a side face of the rotor and a radial sealing plate.  This sealing member includes a main body made of an alumina ceramic and a film formed on a surface of the main body. The film is made of a glaze having a coefficient of thermal expansion smaller than that of the main body. A sealing structure using such a sealing member is also disclosed for sealing the gas preheater.  Further, it may be that the sealing member is at least partially made of an inorganic glass and/or a wear resistive ceramic, and a sealing structure is provided with a solid lubricant-molded body to be pressed against a sliding surface of an opponent member on which the sealing member slides.
Patent CA-2060322-A1 (CA)
Title: Biofeedback device for monitoring muscular movement
Inventor: O'NEAL JOHN L
IPC: A61B5/296
Filed: 1990-06-05
Abstract: The present invention is a biofeedback mechanism (10) which overlies a muscle, measuring the electrical impulses which are created in activating human muscle during a sports skill activity. The mechanism (10) signals the act of muscle contraction and may indicate the magnitude of the muscle contraction.
Patent CA-2062354-A1 (CA)
Title: Variable camshaft timing for internal combustion engine
Inventor: BECKER THOMAS J
IPC: F16D3/10
Filed: 1992-03-05
Abstract: A camshaft (426) has a vane (460) secured to an end thereof for non-oscillating rotation therewith. The camshaft also carries a sprocket (432) which can rotate with the camshaft but which is oscillatable with respect to the camshaft. The vane has opposed lobes (460a, 460b) which are received in opposed recesses (432a, 432b), respectively, of the sprocket. The recesses have greater circumferential extent than the lobes to permit the vane and sprocket to oscillate with respect to one another, and thereby permit the camshaft to change in phase relative to a crankshaft whose phase relative to the sprocket is fixed by virtue of a chain drive extending therebetween. The camshaft tends to change in reaction to pulses which it experiences during its normal operation, and it is permitted to change only in a given direction, either to advance or retard, by selectively blocking or permitting the flow of hydraulic fluid, preferably engine oil, through the return lines (494, 496) from the recesses by controlling the position of a spool (500) within a valve body (498) of a control valve in response to a signal indicative of an engine operating condition from an engine control unit (508).
Patent CA-2066520-A1 (CA)
Title: Method of and apparatus for determining if a given data point falls within a population of data points
Inventor: KESWANI SANTOSH T
IPC: G06V10/56
Filed: 1992-04-21
Abstract: A method of and apparatus for determining if a given data point having three parameters falls within a population defined by more than four known data points, each data point having the three parameters, the method and apparatus involving determining if the given data point falls within any of a plurality of tetrahedrans, each of the tetrahedrons having faux vertices, each of the vertices of each tetrahedron being defined by one of the known data points.
Patent CA-2066993-A1 (CA)
Inventor: GERBE JEAN-PIERRE
IPC: G02B27/00
Filed: 1992-04-24
Abstract: MELANGEUR OPTIQUE POUR VISUEL DE CASQUE Le mélangeur optique de l'invention est utilisé dans un visuel de casque comportant essentiellement un tube intensificateur de lumière (3) pour la vision nocturne et un tube cathodique (7) pour 18 visualisation d'une image synthétique. Ce mélangeur comporte une lame de verre basculante (8A, 8B) à revêtement réfléchissent spectralement et angulairement sélectif. Figure 7
Patent CA-2068619-A1 (CA)
Inventor: PILLET MICHEL
IPC: H04M3/60
Filed: 1992-05-13
Abstract: A telemeeting system comprises a terminal connected to the telephone network by telephone lines attributed to participant telephone sets. A console connected to the telephone set of one of the participants acting as organizer assists the latter in reflecting remarkable operations carried out by the terminal. These operations are indicated in a display board of indicator lights on  the  console  and  can  be  the  result  of  commands transmitted by the organizer telephone set, such as a calling of a participant, inaccessibility of a line or the programming of a terminal operating mode, and of signallings such as the seizing or releasing of a line by a participant. The system also permits  transmission  of  indications  from  each  of  the participants to the organizer, even if the participant does not have the right to speak, consultation of call number lists and time  intervals  of  telemeetings  in  the  terminal  from  the organizer, and automatical setting-up of participant calls for a telemeeting from the terminal.
Patent CA-2076458-A1 (CA)
Inventor: WACKERMANN GUY
IPC: F24F8/24
Filed: 1992-08-20
Abstract: L'invention concerne un procédé de traitement de l'air dans un ensemble de ventilation ou de conditionnement de ventilation ou de conditionnement d'air. Ce procédé utilise une zone de lavage ou d'humidification de l'air pour charger le flux d'air circulant dans l'ensemble de ventilation ou de conditionnement d'une humidité ayant des propriétés désinfectantes, obtenue à partir d'une solution liquide. Ceci a pour but d'effectuer l'assainissement et la désinfection de l'air en circulation, et d'éviter l'entartrage et le nettoyage des circuits associés d'eau ou de vapeur. Ce procédé est notamment utilisable par les constructeurs d'appareils et d'installations frigorifiques et de conditionnement de l'air.
Patent CA-2078708-A1 (CA)
Title: Microwave heating and air conditioning apparatus
Inventor: MENIAN HARRY
IPC: F24F5/00
Filed: 1992-09-21
Abstract: Abstract:       This invention relates to a microwave  heating and air conditioning apparatus. The apparatus comprises  of a magnetron as the source of  microwave energy directed into  the  pressure vessel  to  vaporize  the  volatile mixture out of  the non-azeotropic water solution.  The two constituents of  the solution are  separated within the  pressure vessel  by  distillation  to  direct  the vaporized volatile into an ejector while  diverting the water through  an  auxiliary  heat  exchanger into the evaporator canister.   The  ejector is provided with  a De-Laval type  nozzle to convert  the heat energy  into high velocity kinetic energy.   Within the ejector, the high velocity jet stream is  directed through a venturi to apply  a vacuum at the evaporator canister,  causing the fluid contained within it  to cool.  In addition to the auxiliary heat exchanger, the apparatus is provided with two main heat exchangers, one to cool and condense the exhaust from  the ejector forming the main  heating coil, and  a second  coil to  circulate the cold  water contained within  the  evaporator, forming the  cooling coil.  In the heating mode  of operation, the  exhaust from  the  ejector  is  circulated  through   the  heat exchanger located  within the  plenum of  a forced  air heating system.   A dual  heating and air  conditioning effect is  achieved by exchanging  the contents of  the two heat  exchangers  through  a two  position  17-port spool valve.
Patent CA-2080103-A1 (CA)
Inventor: PECINA JOSEPH A
IPC: F02B77/04
Filed: 1992-10-07
Abstract: ABSTRACT A cylinder head gasket for use in a marine engine adapted to be cooled by the water in which the engine is running, the engine having a non-ferrous alloy cylinder head and a non-ferrous alloy engine block, both the block and cylinder head preferably being made of aluminum alloy. The gasket includes a metallic sheet forming a core, the core having upper and lower surfaces, layers of facing material securely disposed upon those upper and lower surfaces, and wherein the electrolytic solution potential of the metallic sheet is approximately equal to the respective electrolytic solution potentials of the engine block and the cylinder head.
Patent CA-2080981-A1 (CA)
Inventor: HIROKANE JUNJI
IPC: G11B11/105
Filed: 1992-10-20
Abstract: A magneto-optical recording method for rewriting of information includes the initial step of projecting a light beam, whose intensity varies in response to information to be recorded, onto a magnetic thin film with perpendicular magnetization while an external magnetic field of a constant intensity is applied thereto. The magnetization direction of an irradiated area of the magnetic thin film with perpendicular magnetization is arranged in the direction of the external magnetic field when a light beam at high intensity is projected, while it is arranged in the direction of a demagnetizing field, opposite to the direction of the external magnetic field generated by magnetization in the vicinity of the irradiated area, when a light beam of low intensity is projected. A magneto-optical memory element is provided with a base whereon the magnetic thin film with perpendicular magnetization and an in-plane magnetization film are formed. With the above arrangement, an overwriting operation can be carried out through light intensitymodulation without requiring an initialization magnet.
Patent CA-2082099-A1 (CA)
Title: Method to generate frequencies in a digital radiotelephone operating on two different frequency bands
Inventor: VAEISAENEN RISTO
IPC: H04B1/40
Filed: 1992-11-04
Abstract: Abstract A method of generating the different frequency signals required in transmission and reception in a digital radio telephone for operation on at least two different frequency bands. According to the method the mixing frequencies (F1, F2) are selected so that from the frequencies obtained as the mixing results it will always be possible to select the intermediate frequencies (IF1, IF2) required in reception and the transmission frequency (FTX) required in transmission for a radio telephone operating on the desired frequency band.            Figure
Patent CA-2085885-A1 (CA)
Title: Alteration of rate and character of hair growth
Inventor: AHLUWALIA GURPREET S
IPC: A61Q7/02
Filed: 1991-06-21
Abstract: The rate and character of mammalian hair growth is altered by the topical application to the skin of a composition containing an inhibitor of the enzyme gamma-glutamyl transpeptidase.
Patent CA-2086986-A1 (CA)
Title: Individual propelled water craft
Inventor: STONE EDWARD
IPC: B63H1/32
Filed: 1993-01-08
Abstract: ABSTRACT OF THE DISCLOSURE       A recreational water craft is propelled by an individual using cross country skiing action.  The weight of the operator is supported on a platform between two parallel floats thus providing a stable craft.  The water craft comprises two longitudinal floats with a connecting frame, a first guide rail is mounted on the connecting frame having a first foot supporting trolley constrained to move backwards and forwards on the first guide rail, a second guide rail substantially parallel to the first guide rail mounted on the connecting frame, having a second foot supporting trolley constrained to move backwards and forwards on the second guide rail, a propulsion arrangement for moving the craft through the water when the first trolley or second trolley are moved backwards and forwards on the first or second guide rails, and a steering arrangement to direct direction of movement of the craft through the water.
Patent CA-2090625-A1 (CA)
Title: Counter-current process for the rapid regeneration of ion exchange materials in an unrestrained bed
Inventor: KUNZ GERHARD K
IPC: B01J49/00
Filed: 1993-03-01
Abstract: A method of regenerating an ion exchanger which is used to treat a solution introduced to the ion exchanger in a downward charging direction. The ion exchanger contains a non-constrained bed of ion exchange material in the form of ion exchange granules and has a concentration profile through the ion exchange material after solution has been introduced to the ion exchanger in the charging direction. The method of regenerating comprises passing a regenerating solution upwardly through the non-constrained bed of ion exchange material in an intermittent flow manner comprising an alternating up flow of regenerating solution followed by a down flow of liquid in a direction opposite to the up flow. The duration and velocity of the up flow of regenerating solution is sufficient to lift and generate a perceptible mixing of ion exchange materials in approximately the bottom portion of the ion exchange bed, with the down flow being sufficient to seat the bed very rapidly and terminate mixing.
Patent CA-2096469-A1 (CA)
Title: Circuit for generating a stretched clock in quarter-cycle increments
Inventor: LEE ROBERT H J
IPC: G06F1/08
Filed: 1993-05-18
Abstract: ABSTRACT       CIRCUIT FOR GENERATING A STRETCHED CLOCK        IN QUARTER-CYCLE INCREMENTS                    Robert H.J. Lee John D. Kenny The time a microprocessor CPU must wait for memory access is controlled to be one of two values by stretching the CPU clock signal either a first time duration or a second time duration, depending on the expected delay caused by the memory access.  The clock stretching is in increments of one quarter of the CPU clock period and is done with both the leading and trailing edges of the clock pulse.
Patent CA-2097666-A1 (CA)
Title: Slat for a window blind
Inventor: RYDEN LEE N
IPC: E06B9/386
Filed: 1993-06-03
Abstract: SLAT FOR A WINDOW BLIND                             Abstract A slat for a vertical blind is disclosed.  The slat comprises a backing, an end piece, and a decorative insert.   The side flange is disposed along each side edge of the backing, and extends inwardly over a front side of the backing.  An end flange is similarly inte-grally connected to the end piece and extends inwardly over an end edge of the backing.  An opaque strip is disposed along each side flange, and an opaque strip is disposed along the end flange. A decorative insert is held against the backing by the flanges.
Patent CA-2100865-A1 (CA)
Title: Material and material properties from multi-layer blown microfiber webs
Inventor: JOSEPH EUGENE G
IPC: D04H1/54
Filed: 1992-08-11
Abstract: A method for forming melt-blown fiber webs which webs have multiple layers of polymeric material. The method provides novel webs and control over web properties.
Patent CA-2101075-A1 (CA)
Inventor: PEDERSEN OVE
IPC: A61P31/22
Filed: 1992-02-24
Abstract: Peptides of the general formula (I): I-A-B-C-D-E-F-G-H-II, wherein A is Ala, Gly, Val or absent, B is Ala, Gly, Val, Ser or absent, C is Ser, Thr or absent, D is Ser, Thr, Asn, Glu, Arg, Ile, Leu or absent, E is Ser, Thr, Asp or absent, F is Thr, Ser, Asn, Gln, Lys, Trp or absent, G is Tyr or absent, H is Thr, Gly, Met, Met(O), Cys, Thr, or Gly and I is Cys or absent, II is Cys, an amide group, substituted amide group, an ester group or absent, comprising at least 4 amino acids, and physiologically accept-able salts thereof, are active against Herpes Virus infections in animals and human beings.
Patent CA-2102081-A1 (CA)
Inventor: BI QI
IPC: H04B1/7105
Filed: 1993-10-29
Abstract: To recover the bits from various users in an asynchronous CDMA communications system, samples of the received signal are processed using blocksof code coefficients. Each code coefficient block includes the sequence of code coefficients for each user which formed the received signal samples. Each sequence has the same number of code coefficients and this number is equal to the product of a predetermined number of bit intervals and the number of code coefficients per bit interval. Processing of the received signal samples using this block formation completely eliminates interference including the so-called leading and lagging edge effects and can be implemented with blocks that include the code coefficients in one or more bit intervals.
Patent CA-2107178-A1 (CA)
Title: Process for Protecting and Repairing Plastic and Plastic Composite Materials
Inventor: WU YULIN
IPC: C08J7/04
Filed: 1993-09-28
Abstract: A process has been developed for treating plastic and plastic composite materials wherein a protective epoxy coating is placed on said material by contacting with a composition comprising an epoxy resin, an effective amount of curing agent for the epoxy resin, an alcohol and a hydrocarbon solvent.  In another embodiment, the protective epoxy coating is applied by a process comprising the sequential contacting of the plastic or plastic composite surface with a first hydrocarbon solution comprised of an epoxy resin and a hydrocarbon solvent, and a second hydrocarbon solution comprised of an alcohol, a curing agent, and a hydrocarbon solvent.
Patent CA-2108385-A1 (CA)
Title: Flexible cannula
Inventor: HEMPEL SVEN
IPC: A61B17/34
Filed: 1993-10-14
Abstract: Abstract A flexible cannula consists of a flexible tube (2), whose distal zone is introducible into the inside of the body through a trocar puncture point, and a top piece (1).  The top piece (1) is divided into a housing (10) which is flat when seen in the direction of the longitudinal axis  (L-L) of the cannula and which is secured at the proximal end (6) of the tube (2) and contains a closure device (30, 32, 33); a flexible intermediate tube (16) which, starting from the proximal end wall (14) of the housing (10), extends along the longitudinal axis (L-L) of the cannula; and a coupling part (22) which is attached to the proximal end (20)  of the intermediate tube  (16)  and which comprises an opening, which is essentially aligned with the cross-section surface of the tube (2), and coupling elements for the  coupling  of  additional  equipment.    In  an  alternative version, the top piece (1) is designed flat, the intermediate tube (16) being dispensed with.            (Figure 1)
Patent CA-2110127-A1 (CA)
Title: Color Mixing Method for Variable Color Lighting and Variable Color Luminaire for Use with the Method
Inventor: GOTOH SHIGEO
IPC: H05B37/02
Filed: 1993-11-26
Abstract: A variable color lighting arrangement includes at least first to third light sources and at least one other light source, and allows a desired mixed color light to be obtained in a relatively simpler manner,  such that an emission color of an assumed light source is first set with an emission color of one of the first  to third light sources mixed with another emission color of the  other light source, a mixing ratio is calculated with emission colors of remaining two or more of the plurality of light sources including at least the first to third light sources and  the  emission  color  of  the  assumed  source, and  a required mixing ratio of the respective light sources for obtaining the desired mixed color light is obtained on the basis of the calculated mixing ratio.