baber/WOPTO huggingface dataset:
Patent CA-2007598-C (CA)
Title: Reversible turbine pump
Inventor: KERN JEFFREY A
IPC: F04D5/00
Filed: 1990-01-11
Granted: 1996-06-04
Abstract: A reversible turbine pump includes a pair of end walls and a side wall defining an annular pumping chamber.  A turbine impeller mounted for reversible rotation in the chamber includes a rigid input shaft. One end of the shaft extends through one end wall and is sealed from the chamber.  A spring biases the other end of the shaft toward the other end wall.   Cooperating thrust bearing members, mounted to the other end of the shaft and the other end wall, provide a large planar area of low friction engagement therebetween.   The pumping chamber has a pair of inlets, a pair of outlets and a dam.  The first inlet and second outlet are on one side of the dam while the second inlet and first outlet are on the other side of the dam so that reverse rotation of the impeller pumps fluid in opposite directions through a different set of inlet and outlet. Valves associated with the inlets and outlets permit fluid flow in the desired direction and prevent fluid flow in the opposite direction.
Patent CA-2013974-C (CA)
Title: Valve test plug
Inventor: SURVIL ROBERT JOHN
IPC: G01L19/00
Filed: 1990-04-05
Granted: 1996-05-07
Abstract: A valve test plug for connection with a pressure vessel.  The plug includes a hollow valve body and a resilient valve core. The valve core includes first and second core portions bonded in end-to-end relationship and has a slit extending therethrough.  The first core portion is exposed directly to the pressure and is softer than the second core portion which engages the valve body to close the slit or to seal on the probe when the probe is extending through the slit.  The softer first core portion maintains a seal with the valve body and urges the second core portion into sealing engagement with the valve body end to close the slit.
Patent CA-2014962-C (CA)
Title: Color television set
Inventor: HONG CHANG SOO
IPC: H04N5/00
Filed: 1990-04-19
Granted: 1995-10-03
Abstract: The present invention relates to a color television set operated by dual processor.    The color television set is composed of a  micom in common  to selectively control pursuant to the mode selection signal of  a remote  controller; dual-process total-processing service    function unit    to  display  the characters for  reserved watching, telephone directory, birthday, wedding anniversary in   memory  at a desired time; video band selection processing unit utilizing      PWM control method to output the color date stressing a specific    color    tone corresponding  with the  televised screen; audio selection processing unit to select an appropriate audio data in memory  for each  type of TV program, such as show program, drama, movies, sports program.
Patent CA-2019778-C (CA)
Inventor: TAKAGI KOTARO
IPC: H03L7/089
Filed: 1990-06-26
Granted: 1999-11-30
Abstract: A charge pump circuit for charging a capacitor in response to a phase difference between first and second input signals comprises a constant current source for providing a first constant current; a constant current sink for absorbing a second constant current; a circuit for substantially equalizing the magnitudes of the first and second constant currents; and a switching circuit for providing the first constant current and the second constant current flowing in opposed directions to the capacitor through an output terminal of the charge pump circuit in response to the phase difference between the first and second input signals to produce a voltage level across the capacitor corresponding to the phase difference. In a phase locked loop system employing such a charge pump circuit, a phase comparator produces a phase difference signal for controlling the provision of the first and second constant currents by the switching circuit to the capacitor. The capacitor acts as a loop filter supplying the voltage thereacross as a control voltage to a voltage controlled oscillator of the phase locked loop system.
Patent CA-2023003-C (CA)
Title: Machine and segment for compacting and/or crushing bulk material
Inventor: KASTINGSCHAFER GERHARD
IPC: B30B11/16
Filed: 1990-08-09
Granted: 1994-10-25
Abstract: Abstract The invention relates to a machine for compacting and/or crushing bulk material, in which two rollers which can be pressed together at high pressure each consist of a main roller body and a roller shell which is releasable conn-ected to the main roller body and is composed of individual segments.  Each of the individual segments has one single lug projecting in the circumferential direction on the front long side in the direction of rotation of the roller and one single complementary recess on the rear long side in the direction of rotation of the roller.  The generatrices of the outer surfaces of the segments point in the circumferential direction and run radially with respect to the roller axis.  This results in a simple construction of the segments and a high degree of security against tilting.
Patent CA-2023162-C (CA)
Title: Process for the preparation of iminodiacetonitrile and iminodiacetic acid
Inventor: KOENIG KARL ERIC
IPC: C07C255/61
Filed: 1990-08-13
Granted: 1996-08-13
Abstract: An improved process is provided for produc-ing iminodiacetonitrile by contacting ammonia, formal-dehyde and hydrogen cyanide, or hexamethylenetetramine, formaldehyde and hydrogen cyanide in a reaction medium, the improvement which comprises the further steps of thereafter adjusting the pH of the reaction medium to a pH between about 5.5 and about pH 10 and heating the reaction medium to an elevated temperature for a sufficient time to convert by-products in the reaction medium to iminodiacetonitrile.
Patent CA-2029204-C (CA)
Title: Schirmer i tear test
Inventor: GIN JERRY
IPC: A61B3/00
Filed: 1990-11-02
Granted: 2002-12-31
Abstract: An improved Schirmer I Tear Test is provided. The improvement comprises a strip having a graduated migration scale printed an the test strip and the presence of a water soluble marker dye that comigrates with the tear migration front. Both improvements serve to increase the reproducibility of the test and ease which with the results are read.
Patent CA-2038352-C (CA)
Title: Heat-resistant .beta.-galactosyltransferase, its production process and its use
Inventor: NAKAYAMA TORU
IPC: C12N9/10
Filed: 1991-03-15
Granted: 2001-05-15
Abstract: Described herein are a novel heat-resistant p-galactosyltransferase, a production process of the enzyme and a utilization method of the enzyme. The enzyme is produced preferably by a microorganism belonging to the family of Acrinomycetaceae, which may be selected from fungi belonging to the genus Saccharopolyspora, the genus Thermomonospora or the genus Thermoactinomyces.
Patent CA-2039021-C (CA)
Title: Dna sequence comprising a structural gene coding for xylose reductase and/or xylitol dehydrogenase
Inventor: STRASSER ALEXANDER W M
IPC: C12P19/30
Filed: 1991-03-25
Granted: 2006-09-12
Abstract: The invention relates to a DNA sequence comprising a structural gene encoding xylose reductase and/or xylitol dehydrogenase and being capable of expressing these polypeptides in a microorganism. The invention further relates to a combination of DNA sequences, a vector, a microorganism, a method for producing xylose reductase and/or xylitol dehydrogenase and the protein xylulose reductase and/or xylitol dehydrogenase. Microorganisms, expressing the structural genes comprised by the inventive DNA sequences may be used for producing ethanol from xylulose, for producing biomass and recovering NADP+ from NADPH. Preferred microorganisms are S. cerevisiae and Schizosaccharomyces pombe.
Patent CA-2039345-C (CA)
Title: Process for shaping preforms in the manufacture of thermostructural composite material components, especially web-like components or panels
Inventor: VIVES MICHEL
IPC: C23C16/34
Filed: 1991-03-28
Granted: 1997-10-07
Abstract: A fibrous preform  (10)  of  the component to be manufactured is conformed in the desired shape with the   desired   degree   of   compacting,   prior   to densification   by   chemical   vapor   deposition. According  to  the invention,  the  conformation  is achieved by linking the preform (10)  onto a rigid shaping device (12) by means of threads  (30)  that traverse the preform (10) and pass through holes (14) in the shaping device.  The linking threads (30) are made of carbon or ceramic.  Prior to the linking, a covering layer (16) may be arranged on the face of the preform (10) opposite to the one turned towards the shaping device.
Patent CA-2039453-C (CA)
Title: Chill-retention food service tray
Inventor: BRANDO MICHAEL
IPC: A47G19/02
Filed: 1991-03-28
Granted: 1994-11-01
Abstract: A chill-retention food service tray, capable of keeping its contents chilled for an extended time (e.g., several hours) in a warm environment, comprises a bottom tray member including a bottom panel having an upwardly projecting peripheral rim wall and a plurality of upwardly projecting stiffening ribs onto which a top tray member fits; the top tray member includes a support panel at the upper level of the reinforcing ribs and a peripheral rim wall engaging and adhesively secured to the bottom rim wall, as well as a closed configuration hollow wall defining a cup for a dip, sauce, or the like.  The two tray members conjointly define a chamber filled with a viscous chilling gel; the gel has a high heat of fusion.  A plurality of removable divider members may divide the top panel support surface, around the cup, into a series of storage compartments.
Patent CA-2040593-C (CA)
Title: Coatings for the protection of products in light-transmitting containers
Inventor: KAPP DAVID C
IPC: C03C17/32
Filed: 1991-04-16
Granted: 1995-06-06
Abstract: Disclosed herein is a combination of a film-former, a metal-free, reactive colorant, ultraviolet light absorber and an adhesion promoter in an effective combination to substantially block transmission of light through a container in order to reduce lightstruck phenomenon.
Patent CA-2042398-C (CA)
Title: Orally administered porphyrins to control intestinal iron absorption
Inventor: KAPPAS ATTALLAH
IPC: A61K31/555
Filed: 1990-09-24
Granted: 1995-10-31
Abstract: Orally administered metalloporphyrins are useful to inhibit absorption of iron in animals.
Patent CA-2044302-C (CA)
Inventor: FRASER MICHAEL J
IPC: B23P6/00
Filed: 1991-06-11
Granted: 1994-09-06
Abstract: A method of repairing stator blades in a turbine comprises the steps of making a pre-shaped insert of a material the same as or compatible with the material of the stator blade, the size of the insert is such that it forms a substantial part of the stator blade, the method including the step of removing a piece of material from the stator blade including the damaged part or part that it is required to modify and welding in the new insert. The insert is treated sothat at least a part of it is hardened, the hardening may be diffusion alloying or plasma spray and the size of the insert is that the weld line between the insertand the turbine blade is removed from the area of high wear by making the insertlarger than would apparently appear necessary, this enables substantial cut-outsto be made on each stator blade which in turn permits of much better access to the stator blades for securing the new insert and/or additional hardening steps such as plasma spray after the insert has been secured to the stator blade.
Patent CA-2044406-C (CA)
Inventor: GLICK ISAAC N
IPC: A47F7/00
Filed: 1991-06-12
Granted: 1996-06-18
Abstract: The easel comprises a flat, generally diamond-shaped member formed of resilient, non-scratching material of limited flexibility.  The member is scored to provide a line of weakness extending thereacross between its opposed oblique angle points.          When bent along the line of weakness, the member adopts a two-sided pyramidal form.  In this form, the member has rearwardly inclined,  load-supporting front edges and bottom edges.   The front edges form forwardly spaced and upwardly projecting hooks and slots close to their lower ends.   The hooks function to suspend,  retain and frictionally engage the lower edge of a generally flat item received in the slots to be displayed, such as a card, plate or the like.  The sides of the easel member can be  moved  closer  together  or  apart  to  vary  the  angle  of inclination of the load-supporting edges, thereby varying the angularity of the displayed item.  Frictional engagement between the hooks and the display item functions to prevent the side walls of the easel member from sliding apart when loaded.
Patent CA-2054848-C (CA)
Inventor: SID-AHMED ABDEL-HADI
IPC: B60C9/12
Filed: 1991-11-01
Granted: 2001-02-20
Abstract: Pneumatic tires are rendered less susceptible to blow or blister defects by providing, in at least one cord reinforcement ply of a tire, a plurality of gas absorbing hollow bleeder cords with the reinforcement cords and gas absorbing cords lying in the same general plane and with the gas absorbing cords consisting of staple filaments selected from the group consisting of nylon, rayon, polyester or glass. The gas absorbing cords are used as fill yarn in weaving fabric employing parallel reinforcement cords.
Patent CA-2055789-C (CA)
Title: Free floating tower assembly for a work place
Inventor: BALLARD JAMES G
IPC: B21D1/14
Filed: 1991-11-18
Granted: 1996-10-29
Abstract: A tower assembly for applying a force to a damaged part of a vehicle mounted on a work rack having upper and lower plates with inner and outer flanges, the assembly including a carriage mounted on the inner and outer flanges of the lower plate and a beam extending radially outward from the carriage, a tower mounted on the outer end of the beam with a vertically adjustable bracket mounted on one side of the tower and a guide member pivotally mounted on the bracket, a rail assembly mounted in the bottom of the tower for guiding a chain through the tower, a chain dog assembly mounted for reciprocal motion on the opposite side of the tower, a chain aligned with the chain dog assembly, rail assembly in bracket and being connected to the damaged vehicle and a force applying hydraulic piston and cylinder assembly mounted in the tower for moving the dog assembly to apply a force to the damaged vehicle.
Patent CA-2056681-C (CA)
Inventor: ARNTZ DIETRICH
IPC: C07B61/00
Filed: 1991-11-29
Granted: 2000-10-24
Abstract: Process for the hydration of acrolein in the presence of a chelate forming ion exchange resin based on polystyrene/divinyl benzene as catalyst, followed by hydrogenation of the reaction mixture which has been freed from unreacted acrolein and contains 3-hydroxypropionaldehyde. By using chelate forming ion exchangers having anchoring groups corresponding to the following general formula:    wherein Z = H, C1-C6-alkyl, -CH2-CH(CH3)-Y' or -(CH2)o-Y' and Y and/or Y' = -COOH, -OH, pyridyl or -P(O) (CH2OH)OH, hydration proceeds at lower temperatures with higher volume/time yields and in particular higher selectivity than hydration carried out with previously known ion exchangers.      Resins containing methylene iminodiacetic acid anchoring groups in the H form or partially doped with alkali metal, alkaline earth metal or earth metal ions are particularly suitable.
Patent CA-2065586-C (CA)
Title: A process for the enzymatic synthesis of 2-deoxy-.beta.-d-galactosides
Inventor: THIEM JOACHIM
IPC: C12P19/44
Filed: 1992-04-08
Granted: 2003-03-25
Abstract: The invention relates to a process for the enzymatic synthesis of 2-deoxy-.beta.-D-galactosides. The enzyme galactosyltransferase is able to catalyze the transfer of 2-deoxygalactose residues from the donor substrate uridine 5'-diphospho-2-deoxy-D-galactose to N-acetyl-glucosamine or aspartyl-N-acetylglucosamine or, in the presence of lactose, to terminal glucose.
Patent CA-2068920-C (CA)
Title: Maximum operation angle single plug and puppet type retention valves
Inventor: URDANETA JESUS E C
IPC: F16K15/06
Filed: 1992-05-19
Granted: 1994-08-02
Abstract: ABSTRACT    A check valve assembly is disclosed wherein a valve closure means includes a guide means and a connector means as a composite member for use in a pipeline or conduit inclined to the vertical.  The mass of the composite member relative to the angle of inclination and the coefficient of friction between the internal surface of the valve body and the external surface of the guide means is such that there is no risk of valve "jamming" action which would block operation of the valve.  In addition the guide means ensures symmetrical fluid flow whereby the valve operates positively and rapidly eliminating chatter and erratic travel during the course of opening and closing when fluid flow is reversed.
Patent CA-2069452-C (CA)
Title: Information recording/reproduction apparatus and method for recording and/or reproducing information onto and/or from recording medium using probe electrodes
Inventor: HATANAKA KATSUNORI
IPC: G01Q30/06
Filed: 1992-05-22
Granted: 1998-02-03
Abstract: Information recording/reproducing apparatus and method by use of probe electrodes are disclosed.          In this method, information to be recorded on a recording medium is encoded.  The encoded information is distributed to a plurality of probe electrodes.          The plurality of probe electrodes are driven on the basis of the distributed information so as to record the information on the recording medium.  In reproduction, the information recorded on the recording medium is read out from the recording medium by use of the plurality of probe electrodes.          The information read out from the recording medium is stored by use of the plurality of probe electrodes.          The stored information is decoded to reproduce the information recorded on the recording medium.  The encoding is performed by changing the information to be recorded to information added with an error correction code.
Patent CA-2072400-C (CA)
Title: Supercritical extraction of taxanes
Inventor: NAIR JAYAPRAKASH B
IPC: B01D11/00
Filed: 1992-06-25
Granted: 2003-08-19
Abstract: A method for extracting taxanes such as taxol .TM. comprising the use of supercritical fluids.
Patent CA-2074257-C (CA)
Inventor: LHOMME GERARD
IPC: C09J177/00
Filed: 1991-02-06
Granted: 2002-07-30
Abstract: An assembly for forming a semi-permanent electrical connection between a pair of wires (1, 2) comprises a male push-fit connector (3) and a female push-fit connector (4). Each connector (3, 4) has a connection part to enable it to be connected to the wire, e.g. in the form of a crimp (5, 6) and a mating part for engagement to the other connector. Each of the connectors has a seal-ing jacket (8, 10) for sealing the connection to the associated wire, and one of the connectors has a heat-recoverable skirt (11) which, when the connectors are engaged, extends over part of the sealing jacket of the other connector to seal the connection against moisture ingress. The skirt (11) is provided with a layer of adhesive for forming the seal.
Patent CA-2075842-C (CA)
Title: Pneumatic stabilizer
Inventor: REID CHRIS
IPC: F41B5/20
Filed: 1992-08-12
Granted: 2004-04-13
Abstract: A pneumatic stabilizer for use with a bow, rifle, gun or any other instrument that produces destructive vibrational energy. The stabilizer includes a gas spring having weights secured thereto and structure for releasably attaching the stabilizer to an instrument. When the stabilizer is properly adjusted, it has similar vibrational frequency characteristics similar to the instrument such that the vibrational energy of the instrument is absorbed by the stabilizer.
Patent CA-2075893-C (CA)
Title: Coating head for applying a coating suspension layer on a paper sheet
Inventor: BALDINI GIORGIO
IPC: B05C5/02
Filed: 1991-02-19
Granted: 1996-10-22
Abstract: The coating head substantially comprises an elastic blade (5) thrust against the paper sheet (2) which is transported by a rotating cylinder (1), and a chamber (15) fit for containing a coating suspension which is delimited by a portion of the outer sur-face of the cylinder and by the blade and which communicates with a feeding line (18) of the suspension; moreover, said chamber is delimited by a deflector plate (13), the position of which, in relation to the cylinder, can be adjusted so as to define an exhaust port (20) for the coating suspension between it and the surface of the cylinder; according to the invention, the deflector plate is provided with a blocking element (24) which can be elastically deformed and fit for limiting the passage of the coating suspension through said exhaust port, said element presenting a free edge (25) facing the cylinder which is parallel to the cylinder axis
Patent CA-2077634-C (CA)
Title: Solid gel cosmetic composition
Inventor: KAUFFMANN MYRIAM
IPC: A61K8/49
Filed: 1992-09-04
Granted: 1998-08-04
Abstract: Transparent or translucent solid cosmetic gel. 
<??>This nonalcoholic gel contains: 
 
  - from 65 to 99% by weight of a polyol, 
  - from 0.1 to 5% by weight of a dibenzylidenemonosaccharide, 
  - from 0.1 to 5% by weight of a hardening agent of the sulphosuccinate type, and 
  - from 0.5 to 40% by weight of water. 
 
<??>Use especially in make-up products.
Patent CA-2079467-C (CA)
Inventor: CRAWFORD DONALD L
IPC: C09K17/32
Filed: 1991-04-09
Granted: 1999-03-30
Abstract: Novel methods for biodegrading nitroaromatic compounds present as contaminants in soil or water using microorganisms are disclosed. Water is treatable directly; dry soil is first converted into a fluid medium by addition of water. The preferred method comprises two stages, each employing microorganisms: a fermentative stage, followed by an anaerobic stage. The fermentative stage is rapid, wherein an inoculum of aerobic and/or facultative microorganisms ferments a carbohydrate added to the fluid medium, exhausting the oxygen in the fluid medium and thereby inhibiting oxidative polymerization of amino by-products of the nitroaromatics. In the subsequent anaeobic stage, an inoculum of a mixed population of anaeorbic microorganisms completes the mineralization of the contaminant nitroaromatics, using the remaining carbohydrate as a carbon and energy source. Preferably, the carbohydrate is a starch and the aerobic and/or facultative microorganisms are amylolytic, which cleave the starch at a moderate rate throughout both stages, ensuring a sustained supply of metabolizabe carbohydrate. The microorga nisms are preferably selected to be resistant to the types and concentrations of nitroaromatics present as contaminants.
Patent CA-2080452-C (CA)
Title: Electronic-monetary system
Inventor: ROSEN SHOLOM S
IPC: G06F19/00
Filed: 1992-10-13
Granted: 1997-12-16
Abstract: An improved monetary system using electronic media to exchange economic value securely and reliably.  The invention provides a complete monetary system having electronic money that is interchangeable with conventional paper money comprising (1) issuing banks or financial institutions that are coupled to a money generator device for generating and issuing to subscribing customers electronic money including electronic currency backed by demand deposits, or electronic credit authorizations; (2) correspondent banks that accept and distribute the electronic money; (3) a plurality of transaction devices that are used by subscribers for storing electronic money, for performing money transactions with the on-line systems of the participating banks or for exchanging electronic money with other like transaction devices; (4) teller devices, associated with the issuing and correspondent banks, for process handling and interfacing the transaction devices to the issuing and correspondent banks, and for interfacing between the issuing and correspondent banks themselves; (5) a security arrangement for maintaining the integrity of the system; and (6) reconciliation and clearing processes to monitor and balance the monetary system.