baber/WOPTO huggingface dataset:
Patent CA-2203968-A1 (CA)
Title: Coatings for high temperature engine mounts
Inventor: GUO XIANG-YAO
IPC: C09D111/00
Filed: 1997-04-29
Abstract: The performance of natural rubber based products, such as engine mounts which are susceptible to degradation caused by heat, oxidation, ozone attack or ultraviolet radiation is significantly improved by coating exposed surfaces of the product with a polymeric material having excellent heat and oxidation resistance properties.  By applying such polymeric coatings having high resistance towards oxidation under excessive heat, the C=C bonds of the natural rubber are protected from oxygen and ozone attacks, thereby allowing its strain-crystallization characteristic properties to be retained.
Patent CA-2205396-A1 (CA)
Inventor: HAFNER ANDREAS
IPC: C08G61/00
Filed: 1995-11-06
Abstract: L'invention concerne un procédé de polymérisation photocatalytique d'une oléfine cyclique ou d'au moins deux oléfines cycliques différentes en présence d'un composé métal servant de catalyseur. Ce procédé se caractérise en ce qu'on effectue une polymérisation par métathèse avec ouverture du cycle en présence d'un volume catalytique d'au moins un composé ruthénium ou osmium cationique bivalent exempt de carbène, qui contient au moins un groupe phosphine, au moins un ligand photolabile, et éventuellement des ligands neutres liés à l'atome de métal, 2 ou 3 ligands au total étant liés, et qui contient des anions d'acide pour équilibrer la charge. On peut également appliquer ce procédé en commençant par l'irradiation, et en terminant par la polymérisation par chauffage. Ce procédé s'utilise par exemple pour produire des matières moulées, des revêtements et des représentations en relief thermoplastiques.
Patent CA-2209127-A1 (CA)
Title: A coupling arrangement between a multi-mode light source and an optical fiber through an intermediate optical fiber length
Inventor: SAMARTSEV IGOR
IPC: H04B10/29
Filed: 1994-12-28
Abstract: A coupling arrangement for non-axial transfer of light power between a multi-mode light source (LS), having a substantially circu lar emission with a divergence angle .alpha.s, and a multi-mode optical fiber (FF) with a cross section Ac, through a length of an intermediate feeding multi-mode optical fiber (IF) having an end with cross section area Af coupled with said light source (LS) and one portion fused to said optical fiber (FF). Said feeding fiber (IF) has a progressively tapered portion and is fused to said multi-mode optical fiber (FF) at a region of the tapered fiber, and in that the relationship between the acceptance angle .alpha.f of the feeding fiber (IF) and the emission angle .alpha.s of the light source (LS) is expressed by:  .alpha.f = k . .alpha.s where k is a positive constant greater than 1.
Patent CA-2209340-A1 (CA)
Title: Device for taking care of a dog's dung
Inventor: FUJINAGA JIRO
IPC: A01K23/00
Filed: 1997-06-30
Abstract: A device for taking care of a dog's dung simply and smartly while the dog i.s walked includes a harness which can be mounted easily removably on a dog by being pushed from the dog's back onto the dog's waist or hips. A dung bag is fitted to the harness in such a manner that the bag faces the dog's anus. Therefore, the device is simple to mount on a dog and the dung is easily received by the bag.
Patent CA-2209440-A1 (CA)
Title: Rubber compounds containing aryl bis citraconamic acids
Inventor: D SIDOCKY RICHARD MICHAEL
IPC: C08L9/00
Filed: 1997-07-02
Abstract: The present invention relates to rubber compounds containing acids of the formulae: (see formula I) or mixtures thereof.
Patent CA-2209960-A1 (CA)
Inventor: BLANK KARL-HEINZ
IPC: E21B37/08
Filed: 1997-07-04
Abstract: A well regeneration apparatus and method of accomplishing same are provided. A scrubber pump is associated with a device for mechanically cleaning a well casing for washing and scrubbing a filter pipe portion of the well casing, and a gravel bed that surrounds the well casing, by means of a fluid. A feed pump is disposed above the scrubber pump, and the pressure side of the feed pump is connected to a riser that leads out of the well. A pump chamber of the scrubber pump communicates with the suction side of the feed pump. A further chamber is disposed in the vicinity of the scrubber pump and serves to accommodate the mechanically cleaning device. The pump chamber of the scrubber pump is disposed above the further chamber and serves to accommodate components of the scrubber pump that convey fluid outwardly into the gravel bed, in particular such that fluid passes out of the gravel bed, via the lower further chamber into the upper chamber of the scrubber pump, and from the upper chamber into the gravel bed.
Patent CA-2210089-A1 (CA)
Title: Anti-dandruff shampoos with particulate active agent and cationic polymer
Inventor: COFFINDAFFER TIMOTHY WOODROW
IPC: A61K8/23
Filed: 1996-01-05
Abstract: Provided is an anti-dandruff shampoo composition comprising: (a) from about 8 % to about 40 %, by weight, of anionic detersive surfactant; (b) from about 0.1 % to about 5 %, by weight, of particulate anti-dandruff agent having an average particle size of from about 0.35 microns to about 5 microns; (c) from about 0.01 % to about 1.0 %, by weight, of a stabilizing agent for said antidandruff agent, said stabilizing agent being a soluble cationic polymer; (d) from about 50 % to about 91.89 %, by weight, water; wherein said shampoo composition is substantially free of suspending agents selected from the group consisting of crystalline suspending agents and anionic, nonionic, and amphoteric polymeric suspending agents. Also provided is a process used for making the present compositions wherein said particulate anti-dandruff agent and said cationic polymer are admixed in water in the presence of anionicdetersive surfactant.
Patent CA-2210348-A1 (CA)
Title: Method and device for controlling the alignment of two lightwaves in the course of a coherent superimposed reception
Inventor: FISCHER EDGAR
IPC: H04B10/60
Filed: 1997-07-23
Abstract: In connection with a method and a device for the control of the optical alignment of two lightwaves in the course of a coherent superimposed reception, a spatial beam regulation is achieved in that the light of a local laser (5) is superimposed on the received light (1), that then the signal obtained in this manner is divided into two identical beam portions (1A, 1B) by means of a beam splitter (2) and that a respective error signal (14, 16) is generated from the two portions by means of a respective detector arrangement (3, 4), so that the two error signal portions result in a spatial error signal. The original data signal (15) is again obtained by the addition with the correct signs of the error signal portions.
Patent CA-2215748-A1 (CA)
Title: Freeze-drying process and apparatus
Inventor: OUGHTON DOMINIC MICHAEL ANTHON
IPC: F26B5/06
Filed: 1996-03-14
Abstract: A freeze-drying process includes a freezing step of rotating the vial (1) about its longitudinal axis at a speed not less than that required to maintain by centrifugal force the aqueous material to be freeze-dried in the form of a shell (7) on the inner walls of the vial (1) and then subjecting the material to freezing conditions to freeze it in the form of said shell (7). In another aspect of the invention, the freeze-drying process also includes the step of drying the shell frozen material (7), by directing heat radially inwards from a heating block (14) to the shell frozen material (7) and increasing the temperature over a time period to dry the shell frozen material (7).
Patent CA-2215772-A1 (CA)
Inventor: NORRBY HENRY
IPC: B60P7/08
Filed: 1995-09-19
Abstract: A strap tensioning device comprises a frame (1) with a rotatable reel (3) and a turnable command means (2). A ratchet wheel (43) is co-rotatively connected with the reel, said wheel cooperating with two spring-loaded latch elements (14, 29). When the command means (2) is turned out from the frame (1), the reel (3) is carried with it. At an opposed return movement, the reel (3) is blocked. A rotatable support roller (4) is arranged between the two side pieces (5, 5') of the frame (1). The reel (3) comprises a shaft (16) whose opposed ends are arranged in elongated holes (9). In this way, the reel (3) may be distanced from the support roller (4), whereby the device may be used for both strap tensioning and strap feeding.
Patent CA-2218192-A1 (CA)
Title: Blood-collection needle-disposal system
Inventor: SARSTEDT WALTER
IPC: A61B5/15
Filed: 1997-11-04
Abstract: A blood-collection needle disposal apparatus is disclosed for a needle having a sharp front end and a sharp rear end, and a mounting collar on the needle between its ends. The disposal system includes a holder tube extending along an axis and having front and rear ends and a piston axially slidable in the holder tube which piston is provided with a mount adapted to fit complementarily with the mounting collar when the needle rear end is directed axially backward into the tube. The piston normally is at the tube front end with its mount projecting axially forward from the tube. A flexible strand has a front end attached to the piston and a rear end projecting from the tube rear end. This mount is fitted into the needle's collar after the blood-collection operation is complete so that a pull on the strand retracts the piston back into the tube carrying along the needle fitted to its mount. In the fully retracted position, the needle ends are shielded by the tube substantially preventing needlestick accidents.
Patent CA-2219899-A1 (CA)
Title: Shark serum preparations for inhibiting retroviruses and tumor growth
Inventor: HOWARD MARK E
IPC: A61K35/60
Filed: 1996-05-03
Abstract: Serum and immunoglobulin preparations obtained from sharks are used to prepare compositions, including pharmaceutical compositions, for inhibiting retrovirus replication in susceptible cells. Thus, the serum preparations are useful for inhibiting diseases associated with retroviral infection, such as acquired immunodeficiency syndrome. The serum concentrates and immunoglobulins therefrom are also used to inhibit growth of tumor cells, especially sarcomas and leukemias.
Patent CA-2220560-A1 (CA)
Inventor: BERBAKOV PAUL J
IPC: B23K31/12
Filed: 1997-11-07
Abstract: An automated process for inspecting and controlling the quality of titanium welds using color recognition. A color sensor and white light source are mounted to a fixture. The fixture is used to traverse the weld or the part being welded is moved in the viewing path of the sensor. The sensor is calibrated to indicate the desired or undesired color of a weld. A recording device such as a computer is used to receive signals from the sensor and record the location of weld colors that indicate an unacceptable weld. Weld parameters are controlled by color feedback to minimize the deposition of unacceptable weld.
Patent CA-2221755-A1 (CA)
Title: Cleansing compositions
Inventor: PHIPPS NICOLA JACQUELINE
IPC: C11D3/382
Filed: 1996-05-09
Abstract: A personal cleansing composition comprising: (a) from about 1 % to about 25 %  by weight of water-soluble gel-forming nonionic surfactant; (b) from about 0.1 % to about 3 % by weight of alkyl sulphate fluidising agent having an average of from 4 to 10 carbon atoms in the alkyl chain; and (c) optionally, from about 1 % to about 30 % by weight of a dispersed oil phase. The cleansing products demonstrate excellent low temperature fluidity characteristics, excellent mildness, in-use and after-use conditioning benefits, lathering and rinsibility.
Patent CA-2226289-A1 (CA)
Title: System for controlling production from a gas-lifted oil well
Inventor: DER KINDEREN WILHELMUS JOHANNE
IPC: E21B43/12
Filed: 1996-07-23
Abstract: A system for controlling production from a gas-lifted oil well comprises a dynamically controlled choke (1) for adjusting the flow of crude oil from a production tubing (2) of the well. The choke (1) is controlled by a control module (CM) comprising a PID controller (PID) which is set to dynamically control the opening of the choke (1) such that the pressure (CHP) in the lift gas injection conduit is minimized and stabilized. The system is capable of maximizing and stabilizing the crude oil production in an accurate manner and without requiring downhole equipment.
Patent CA-2227519-A1 (CA)
Title: Compact disc changer utilizing disc database
Inventor: YANKOWSKI CARL J
IPC: G06F17/30
Filed: 1996-07-02
Abstract: A method and apparatus for updating a memory in a Compact Disc changer.  Information identifying discs stored in a CD changer is stored in a memory. The memory is updated when a CD is loaded which does not have identifying features which are recognized by the CD changer. Updating is carried out via a modem connection to a remote database. The database can be stored locally in a local database residing in a personal computer where the database can be queried to locate desired tracks and can be used to facilitate control of the compact disc changer by providing a simplified interface for building a play list and the like.
Patent CA-2228694-A1 (CA)
Title: Co-dominant genetic diagnosis test
Inventor: CAMPBELL KEVIN P
IPC: C12Q1/6858
Filed: 1996-07-12
Abstract: A method for detecting the homozygous or heterozygous state of mutations assumed to be present in a nucleic acid by simultaneously using two primer pairs. The two different primer pairs lead to the production of amplified fragments of different sizes, and the number and quality of the amplified bands enables homozygous and heterozygous items to be distinguished on the basis of said mutation.
Patent CA-2233125-A1 (CA)
Title: Method and apparatus for providing multi-network virtual services
Inventor: LO RON
IPC: H04M3/00
Filed: 1998-03-25
Abstract: In the case of an outbound international call originating from the U.S., an international communication system at a first switch receives, over a segment of the communication channel, the calling party's automatic number identification (ANI) and the dialed number (DN).  The switch then sends a query to a processor having a previously stored customer processing records (CPRs).  The database at the processor correlates the call information with the appropriate CPR; a service identity value is then inserted into a field which is unused for domestic calls.  Call information including the service identity value is then transmitted to a second switch.  When the service identity value indicates a service has been triggered, the transmitted call information is correlated with the appropriate index in a trigger table.  The service-related values associated with the matched pseudo-country code are then inserted into the service-specific parameters.  Finally, the service-specific values are delivered to the called party in the destination country using the service-specific parameters.  A similar process is performed for an inbound international call originating from a foreign country and an international transit call.
Patent CA-2235503-A1 (CA)
Title: A broadband omnidirectional microwave parabolic dish-shaped cone antenna
Inventor: GUNNELS ROBERT
IPC: H01Q15/16
Filed: 1998-04-21
Abstract: An omnidirectional microwave antenna comprises a paraboloidal reflector disposed above the ground and facing downwardly with a substantially horizontal aperture and a substantially vertical axis. A vertically oriented feed horn is located below the paraboloidal reflector on the axis of the paraboloidal reflector and has a phase center located near the focal point of the paraboloidal reflector. A conical reflector having a shaped reflecting surface defined by the parameters of a mathematical equation extends downwardly away from the periphery of the feed horn for reflecting radiation received vertically from the paraboloidal reflector in a horizontal direction away from the conical reflector, and for reflecting horizontally received radiation vertically to the paraboloidal reflector. A radome extends downwardly from the outer periphery of the paraboloidal reflector and includes an absorber material for absorbing radiation propagated laterally from the feed horn and the conical reflector above the aperture of the feed horn.
Patent CA-2236848-A1 (CA)
Title: Electrochemical method
Inventor: MAXWELL IAN ANDREW
IPC: G01N27/49
Filed: 1996-11-15
Abstract: A method for determining the concentration of a reduced or oxidized form of a redox species in an electrochemical cell (Fig 10) of the kind comprising a working electrode (2) and a counter electrode (16) spaced from the working electrode such that reaction products from the counter electrode arrive at the working electrode, the method comprising the steps (Fig 5) of applying (21) an electric potential between the electrodes, such that the electro-oxidation of the redox species is diffusion controlled, determining the current as a function of time, estimating the magnitude of the steady state current (23), reversing the potential, again determining current as a function of time and estimating the reverse potential steady state (25).
Patent CA-2237627-A1 (CA)
Title: Lifesaving device for people in avalanches
Inventor: ASCHAUER PETER
IPC: A63B29/02
Filed: 1996-05-09
Abstract: A saving apparatus for persons in avalanches has at least one tear-resistant balloon (8) that can be secured next to the body of the user and that in operation is inflated with pressurised gas. A filling apparatus (6) that connects the balloon (8) to at least one pressurised gas container has a device for opening the container and communicates with a filling opening of the balloon (8). The pressurised gas container with the apparatus (6) is directly secured to the body of the user by fastening means, independently of the balloon, or is indirectly secured to the body of the user by his clothing or other objects. The filling apparatus (6) communicates with the filling opening of the balloon through a pressurised gas channel (13, 19, 75, 82) that ensures that the balloon is filled with pure gas.
Patent CA-2237889-A1 (CA)
Inventor: NAGASHIMA YASUHIKO
IPC: C23C22/16
Filed: 1996-12-06
Abstract: A zinc phosphate-type conversion film having microfine-sized crystals is formed on metal surfaces using a conversion treatment bath that contains zinc ions and phosphate ions along with 50 to 1500 ppm of an organoperoxide conversion accelerator, and optionally surfactant. Surface-conditioning treatments can be omitted from this method. The presence of the surfactant makes possible simultaneous execution of surface cleaning and conversion treatment.
Patent CA-2238621-A1 (CA)
Title: Novel drug for relieving pain and promoting the removal of calculi in urolithiasis
Inventor: AKAHANE MASUO
IPC: A61K31/138
Filed: 1996-11-29
Abstract: The present invention relates to a novel drug for relieving pain and promoting the removal of calculi in urolithiasis which contains as the active ingredient a drug having the stimulating effects on both .beta.2- and .beta.3-adrenoceptors and exerting a potent relaxing effect on human ureteral smooth muscle.
Patent CA-2238958-A1 (CA)
Title: Method and apparatus for facilitating compatibility between pulse oximeters and sensor probes
Inventor: VENKATACHALAM K L
IPC: A61B5/1495
Filed: 1996-12-18
Abstract: A sensor probe operable to transmit light of a first wavelength for scattering by a tissue sample is described for use with a pulse oximeter (310, 410) designed to operate with another type of sensor probe (302, 402) which transmits light of a second wavelength. The sensor probe (302, 402) includes at least one source of light (306, 308; 406, 408) for transmitting light of the first wavelength for scattering and/or absorption by the tissue sample. At least one detector (314, 414) is included for detecting light of the first wavelength affected by the tissue sample and generating a signal in response thereto. An encoder (420) in the sensor probe (402) transforms the signal to a form which may be employed by the oximeter.
Patent CA-2240757-A1 (CA)
Title: Blood vessel puncturing device
Inventor: SAITO KOETSU
IPC: A61B8/08
Filed: 1998-07-13
Abstract: A blood vessel puncturing device includes an ultrasound sensor which is brought into close contact with a subject body via an ultrasound propagation medium in the form of gel. The ultrasound sensor transmits and receives an ultrasound wave. The device further includes a processor which processes a signal derived from the ultrasound wave received at the ultrasound sensor so as to display an image of the subject body including a superficial blood vessel. While watching the displayed image, an operator sticks a puncturing needle at an angle of not greater than 30 degrees relative to the subject body along an ultrasound scanning surface of the ultrasound sensor and inserts the tip of the puncturing needle into the blood vessel. It may be arranged that a change in blood flow in the blood vessel is detected based on a Doppler signal or a change in luminance at a designated region on the displayed image is detected, and the detected change is notified in the form of an audible sound so that the operator confirms insertion of the puncturing needle into the blood vessel.
Patent CA-2243758-A1 (CA)
Title: Electric shaver
Inventor: MOMOSE KAZUHIRO
IPC: B26B19/44
Filed: 1998-07-22
Abstract: An electric shaver including a display that indicates when it is time to clean the shaving debris accumulated on a shaving debris receiving part that is covered by an outer cutter frame of the shaver. A counting device of the shaver counts the use time (or the load current) of the motor that drives the inner cutter so that a control device compares the counted use time with a preset reference value; and when the counted use time reaches the preset reference value, the control device judges that the time for cleaning has arrived and actuates the display so that the display shows that it is time for cleaning Thus, the user detaches the outer cutter frame and removes the shaving debris from the shaving debris receiving part in which a light-receiving devices is embedded. When the shaving debris is removed and the light exceeding a preset light quantity impinges on the shaving debris receiving part, the control device detects via the light-receiving device that light exceeding the reference quantity of light has impinged on the shaving debris receiving because of the removal of the shaving debris; as a result, the control device resets the counting device so that the counting device re-starts the count of the use time.
Patent CA-2243995-A1 (CA)
Inventor: SHIPP JOHN I
IPC: A61B18/12
Filed: 1997-02-18
Abstract: On décrit un électrocautère sans fil (5), utile dans des procédures chirurgicales, et fonctionnant sur piles (10), donc sans fil. Cette unité est commandée par un microprocesseur (14) et elle offre une rétroaction et une commande automatiques de la puissance de sortie, en fonction du niveau de puissance choisi, par l'utilisateur, parmi plusieurs niveaux de puissance.
Patent CA-2244296-A1 (CA)
Inventor: WHITEHOUSE GEOFFREY
IPC: A61G13/10
Filed: 1998-07-29
Abstract: A lightweight operating table top for use with a conventional operating table comprises a substantially planar sheet having a pair of opposed upper and lower surfaces and including reinforcement means for increasing rigidity of the sheet. The operating table top preferably extends substantially the full length of the operating table and includes a body portion and a head portion extending from the body portion so as to provide a surgeon with sufficient leg room for performing seated surgical procedures. The table top is held to the operating table by the combined weight of the mattress and the patient, and can by securing means extending from the table top to the operating table.