baber/WOPTO huggingface dataset:
Patent CA-1303091-C (CA)
Title: Multiple fluid path junction device
Inventor: EDWARDS FLOYD V
IPC: F16L47/00
Filed: 1988-03-11
Granted: 1992-06-09
Abstract: Abstract of the Disclosure A multiple fluid path junction device includes first and second housing portions, each of which defines a         an inner surface having therein a plurality of intersect-ing channels extending to the edges of the inner surfaces. A body is defined by joining the housing portions along thoir inner surfaces, with the channels aligning to form passageways through the body.  Along one channel in each housing portion, adjacent the edge of the inner surface, is a widened portion formed into the housing portion to define a containment chamber for receiving a duckbill-type check valve constructed as a single piece from a resilient material.  The valve is secured within the chamber to cause fluid flow into the chamber to pass through the valve.   h
Patent CA-1321193-C (CA)
Title: Process for demineralizing sugar solutions
Inventor: LABRIE ROBERT L
IPC: C13B20/14
Filed: 1988-03-24
Granted: 1993-08-10
Abstract: ABSTRACT     Improved method for demineralizing a sugar-containing solution using an ion exchange resin in bead form wherein the mean bead diameter is from 400 to 700 µm and the bead diameter distribution is such that at least 80 volume percent of the beads have diameters which fall within a range of ?15 percent of the volume average diameter of the resin used.     35,915-F
Patent CA-1335025-C (CA)
Title: Procede de preparation en emulsion aqueuse de polymeres du chlorure de vinyle sous forme de latex a particules monodispersees
Inventor: GROSSOLEIL JACQUES
IPC: C08F2/20
Filed: 1988-04-11
Granted: 1995-03-28
Abstract: L'invention concerne un procédé de préparation d'homo- et co-polymères du chlorure de vinyle sous forme d'un latex à particules monodispersées, et plus particulièrement d'un latex à grosses particules, par polymérisation en émulsion aqueuse du ou des monomères correspondants, en une ou deux étapes. Selon l'invention, on réalise la première étape en l'absence d'agent tensioactif et en présence d'au moins 0,2% en poids par rapport au(x) monomère(s), d'au moins un amorceur hydrosoluble choisi dans le groupe formé par les persulfates des métaux alcalins et le persulfate d'ammonium. On réalise la première étape en présence également d'au moins un composé auxiliaire hydrosoluble, solvant du chlorure de vinyle, en quantité telle que la solubilité à 25.degree.C, sous la pression atmosphérique, du chlorure de vinyle dans la phase aqueuse soit au moins égale à 1,5 g/l. Le procédé permet d'obtenir, en une étape de polymérisation, des polymères du chlorure de vinyle sous forme de latex à particules monodispersées de diamètre moyen compris entre 0,17 et 0,8 .mu.m et, en deux étapes de polymérisation, des polymères du chlorure de vinyle sous forme de latex à particules monodispersées de diamètre moyen compris entre 0,5 et 1,2 .mu.m. Ces latex, qu'ils soient issus de la première ou de la deuxième étape, sont exempts de particules non sphériques.
Patent CA-1282506-C (CA)
Title: Multiplexed data channel controlled telephone system
Inventor: COMERFORD TIMOTHY N
IPC: H04M1/715
Filed: 1988-04-19
Granted: 1991-04-02
Abstract: Abstract of the Disclosure A multiplexed data channel telephone system comprising a master station and one or more remote stations is disclosed.  Each station is bridged, in a parallel electrical connection, onto a wire-pair that extends from the stations to a telephone switching system.  Each station includes a voiceband line interface for connecting to the wire-pair at voiceband frequencies, and a radio frequency line interface for connecting to the wire-pair at radio frequencies.  Each station further includes multiplexer and demultiplexer equipment for frequency shifting a data channel between baseband and rf.  Amplitude modulation and half-duplex transmission are used in the data channel.  Telephone status and control information, including ringing and answer control, are exchanged between processors via the data channel.  Remote stations minimize the amount of equipment required by using the data channel to control common equipment at the master station that interacts with incoming telephone lines.
Patent CA-1332422-C (CA)
Title: Process for the preparation of bicyclic amino carboxylic acids, intermediates in this process, and their use
Inventor: URBACH HANSJOERG
IPC: C07D209/42
Filed: 1988-06-30
Granted: 1994-10-11
Abstract: Abstract of the disclosure A process for the preparation of bicyclic amino carboxylic acids, intermediates in this process, and their use The invention relates to a process for the preparation of compounds of the formula 1   (I) in which n denotes 1, 2 or 3, R denotes acyl, and R1 denotes alkyl, cycloalkyl, aralkyl or another carboxyl protective group, which comprises radical cyclization of compounds of the formula II                    (II) in which n, R and R1 are as defined above, and Hal denotes chlorine, bromine or iodine, to intermediates in this pro-cess, and to their use.
Patent CA-1322504-C (CA)
Title: Conformable, stretchable surgical wound closure tape
Inventor: LUNN ANTHONY C
IPC: A61L15/16
Filed: 1988-07-22
Granted: 1993-09-28
Abstract: ABSTRACT      CONFORMABLE. STRETCHABLE SURGICAL WOUND CLOSURE TAPE   There is disclosed a wound closure tape comprising a nonwoven fabric having a pressure-sensitive adhesive uniformly disposed over one surface thereof.  The tape is strong enough to hold minor wounds closed, and yet will conform to skin contours and will permit flexing and bending without undue restraint or detachment of the tape.  The nonwoven fabric employed in the invention is a web of continuous filaments that are randomly oriented in the plane of the fabric, with the filaments being essentially free of bonding at cross-over points (that is, at points of intersection), and wherein the fabric is emboss bonded in an intermittent pattern.
Patent CA-1308879-C (CA)
Title: Method and apparatus for solids separation in a wet oxidation type process
Inventor: HONG GLENN T
IPC: B09B3/00
Filed: 1988-09-19
Granted: 1992-10-20
Abstract: METHOD AND APPARATUS FOR SOLIDS SEPARATION     IN A WET OXIDATION TYPE PROCESS            ABSTRACT            The present invention relates to a novel aqueous-phase oxidizer and solids separator reactor.  More particularly, the invention relates to a two zone pressure vessel in which precipitates and other solids fall or are sprayed from a supercritical temperature super zone into a lower temperature sub zone.  The feed material may consist of various waste products which are subsequently oxidized in the super zone of the pressure vessel.  The resultant brine or slurry which is found at the lower temperature sub zone of the vessel is removed via a pipe and disposed of accordingly.
Patent CA-1288165-C (CA)
Inventor: TROFIMENKOFF FREDERICK N
IPC: H03M1/00
Filed: 1988-11-04
Granted: 1991-08-27
Abstract: ABSTRACT OF THE DISCLOSURE          A clock-controlled voltage-to-frequency converter comprises a reference voltage source, an integrator for receiving the reference voltage and a variable input voltage and producing an output having a triangular waveform, the integrator including a capacitor which is charged at a rate proportional to the input voltage and discharged at a rate proportional to the difference between the reference voltage and the input voltage, the charging and discharging occurring during a time interval To, a clock pulse source for generating a continuous series of clock pulses, a counter responsive to the clock pulses for terminating the discharging of the capacitor and initiating the charging of the capacitor at a fixed time interval following termination of the charging of the capacitor, and a logic unit responsive to the output of the integrator for terminating the charging of the capacitor and initiating the discharging of the capacitor when the integrator output rises above a preselected threshold level, the time required for the capacitor to charge to the threshold level varying in accordance with the magnitude of the input voltage.
Patent CA-1331380-C (CA)
Inventor: KANEKO MASAKATSU
IPC: C07H19/02
Filed: 1988-12-02
Granted: 1994-08-09
Abstract: ABSTRACT            GRISEOLIC ACID MONOESTERS, THEIR PREPARATION AND USE   Monoester griseolic acid derivatives of formula (I):                                          (I)   (in which: R1 and R2 are the same or different and each represents a hydrogen atoms, hydroxy groups and protected hydroxy groups; R3 and R4 each represents a hydrogen atom, or together represent an extra carbon-carbon bond between the two carbon atoms to which they are attached; one of R  and R  represents a hydrogen atom and the other  represents a carboxy-protecting group removable in the biochemical environment of the human eye); and pharmaceutically acceptable salts thereof have been found to have valuable properties in the treatment of ophthalmic disorders,  They may be prepared by the selective esterification of the appropriate free acid.
Patent CA-1325342-C (CA)
Title: Silicon-based mass airflow sensor and its fabrication  method
Inventor: LEE KI W
IPC: G01P5/10
Filed: 1988-12-21
Granted: 1993-12-21
Abstract: SILICON BASED MASS AIRFLOW SENSOR AND ITS FABRICATION METHOD                 ABSTRACT OF THE DISCLOSURE    A mass airflow sensor is fabricated on a semiconductor substrate (18) and includes a dielectric diaphragm (1), p-etch-stopped silicon rim (2), thin-film heating (3) and temperature sensing elements (4-7), and tapered chip edges (18). The dielectric diaphragm (1) is formed with thin silicon oxide and silicon nitride in a sandwich structure (32) and provides excellent thermal insulation for the sensing (4-7) and heating (3) elements of the sensor.  The diaphragm (1) dimensions, including thickness, are accurately controlled through the use of the heavily-p-doped silicon rim (2) to help ensure uniform and reproducible sensor performance.
Patent CA-1304541-C (CA)
Inventor: KOBAYASHI KEIICHI
IPC: A47K13/10
Filed: 1989-01-25
Granted: 1992-07-07
Abstract: ABSTRACT OF THE DISCLOSURE     A detachable  opening  and  closing  structure  for stool seat and cover, wherein a resistance mechanism is not actuated when opening the seat and cover, but turns them quickly within a predetermined range of angles and then  operates  slowly  for  closing,  and an  erection mechanism applicable preferably  to such mechanism  is provided further thereto.  Accordingly, when opening the seat and cover, these can be handled lightly as in the case of normal seat and cover, and closed within a short time despite being loaded with a resistance.   Shocks from the opening and closing mechanism to the stool side are relieved, thus preventing members from damage, loose work and the like.   Further,  it is not necessary to provide  the  erection  mechanism  separately  from  the opening  and  closing  mechanism,  a  structure  can  be compact, the mechanism is detachable easily to simplify the maintenance work, and sanitary use is ensured.
Patent CA-1334932-C (CA)
Title: Swab expressor immunoassay device
Inventor: LENNON DONALD J
IPC: B01L3/00
Filed: 1989-02-22
Granted: 1995-03-28
Abstract: A disposable, pre-packaged device is particularly suitable for conducting diagnostic procedures based on immunological reactions using specimens gathered in the absorbent tip of a swab. The device is made up of an elongated holder member which includes structure for supporting and positioning a swab, another holder member hingedly mounted at one end of the swab holder member and which carries a capture media element assemblage suitable for conducting an immunoassay test.  The device also includes a cover member hingedly mounted on the opposite end of the swab holder member.  The cover member includes structure positioned for pressed the swab tip against the capture element when the device is operated.  Thus, the liquid in the swab tip is squeezed and the test fluid is expressed therefrom and brought into intimate contact with the capture element.  The results of the test are visually observable by simply swinging the member which carries the capture element away from the swab holder member.
Patent CA-1332254-C (CA)
Inventor: ODA HIDEMASA
IPC: B32B27/20
Filed: 1989-02-24
Granted: 1994-10-04
Abstract: Abstract The present invention is directed to multilayered containers comprising a layer of a composition comprising a gas barrier resin, particularly an ethylene-vinyl alcohol copolymer, incorporating an inorganic powder, e.g. mica, and a layer of a composition comprising a thermo-plastic resin incorporating an inorganic powder, e.g. mica.  The containers have excellent gas barrier properties, particularly after being retorted, while showing very little deformation during retort treatment, and further have excellent mechanical strengths.
Patent CA-1316002-C (CA)
Inventor: HOBLINGRE ANDRE
IPC: F16D1/108
Filed: 1989-03-13
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE:           An improved rapid fastener of the bayonet type, The rapid fastener is adapted to achieve a connection in the axial direction and in rotation of two elements and more particularly torque-transmitting shafts.   It comprises at the end of one of the elements a socket which is provided with at least one helical slot and on which is axially slidable  a ring defining at least one longitudinal slot which is laterally offset relative to the entrance of the helical slot.  The ring is biased by a spring toward the entrance of the socket.   The second element has a stem provided with a driving pin which,  in entering the helical slot, urges back the ring but is guided under the action of the spring and the edges of the two slots toward the inner end of the helical slot and is then locked in this position without clearance.
Patent CA-1323496-C (CA)
Title: Air condenser installation
Inventor: PALFALVI GYOERGY
IPC: F28B9/00
Filed: 1989-04-03
Granted: 1993-10-26
Abstract: ABSTRACT OF THE DISCLOSURE         Air  condensers  are  liable  to  suffer  from undercooling which may entail frost damages and represents, in any case, thermo-dynamic losses.  In order to prevent undercooling, the working length of the cooling surfaces of the air condensers are controlled by shutters which are associated with a drive mechanism operated dependent on the temperature difference of condensates withdrawing from a first and a further row of tubes of the air condensers.  By shutters located in a gap between the air condensers, the cooling air is enabled to recirculate whereby danger of frost and undesired risings of the temperature level of condensation may be avoided and impeded, respectively.  A casing encompassing the air condensers and provided with shutters at its bottom and top permits starting without danger of frost by means of recirculation.
Patent CA-1331060-C (CA)
Title: Apparatus and method for an electronically controlled  color filter for use in information display applications
Inventor: SILVERSTEIN LOUIS D
IPC: G02F1/1347
Filed: 1989-04-04
Granted: 1994-07-26
Abstract: ABSTRACT    A electronic color filter system for controlling a  picture element color signal includes three filter regions which selectively control spectral components of light transmitted sequentially therethrough.  Each filter region has a liquid crystal host material  and a dye guest component.  The orientation of the liquid crystal host, determined by an electric field applied to  the  filter  material,  determines the absorption coefficient of the dye guest component  to  polarized light.   By  appropriate  selection  of the guest dye component and control of the electric fields  applied to the host liquid crystal, the transmitted light can have a selected radiation spectrum.  The  transmitted light  of  a multiplicity of picture elements can be used to provide a full-color visual image display.
Patent CA-1332760-C (CA)
Title: Continuously varying hourly rate parking credit card device
Inventor: SAGLIO CLAUDE
IPC: G07F7/08
Filed: 1989-05-30
Granted: 1994-10-25
Abstract: Credit card device for parking facilities, comprising a credit card (1) having an area (2) susceptible of displaying a signal showing that the card is in operation, a meter of which the value decreases from a nominal value to tend towards zero as the parking time passes, and a device which actuates the metering device at a speed proportional to the value of the hourly rate, a support (1a) to receive the card, a power supply source, at least one contact (10) for connecting the above-mentioned devices to the electric source, and means (8, 9) allowing the user to continuously vary the value of the hourly rate of the card.
Patent CA-1309195-C (CA)
Title: Isdn network termination unit enabling to establish data link between one terminal equipment and other terminal equipments connected to the unit without use of subscriber line
Inventor: FUJIWARA RYUHEI
IPC: H04Q5/00
Filed: 1989-06-06
Granted: 1992-10-20
Abstract: Abstract of the Disclosure:     An ISDN network termination unit for connecting a user's bus line connected to a plurality of terminal equipments and a subscriber line extending from an exchanging office receives and transmits a D channel signal from one of the exchanging office and each terminal equipment to the other to thereby establish a data link between them on the D channel.  The D channel signal is provided with an identifier code field.  In order to establish a data link between the terminal equipments on the D channel without use of the subscriber line and the exchanging office, the ISDN network termination unit is provided with an identifier code holder for holding a predetermined identifier code and a deciding circuit for deciding whether or not the identifier code in the D channel signal from a specific one of the terminal equipment is equal to the predetermined identifier code.  When both are equal to each other, the D channel signal is returned by a returning circuit to the terminal equipments through the user's line to thereby establish the data link between the specific terminal equipment and the other terminal equipments through the network termination unit.  It may be made that a start flag and a stop flag are additionally detected so as to control the returning circuit.
Patent CA-1329274-C (CA)
Inventor: TANIGUCHI TOMOHIKO
IPC: G10L19/18
Filed: 1989-06-07
Granted: 1994-05-03
Abstract: ABSTRACT         Several encoders perform a local decoding of a speech signal and extract excitation information and vocal tract information from a speech signal for an encoding operation.  The transmission rate ratio between the excitation information and the vocal tract information are different for each encoder.  An evaluation/selection unit evaluates the quality of decoded signals subjected to a local decoding in each of the encoders, determines the most suitable encoders from among the several encoders based on the result of the evaluation, and selects the most suitable encoder, thereby outputting the selection result as selection information.  The decoder decodes a speech signal based on selection information, vocal tract information and excitation information.  The evaluation/selection unit selects the output from the encoder in which the quality of a locally decoded signal is the most preferable.  When vocal tract information changes little, the vocal tract information is not output, thereby allowing for increased quality of information.  As much of the surplus of unused vocal tract information as possible is assigned to a residual signal.  Thus, the quality of a decoded speech signal is improved.
Patent CA-1323109-C (CA)
Title: Method for maintaining a correct time in a distributed processing system
Inventor: FINE MICHAEL
IPC: G06F1/14
Filed: 1989-06-29
Granted: 1993-10-12
Abstract: ABSTRACT OF THE DISCLOSURE    A method for maintaining a correct time in a distributed processing system involves clerk nodes maintaining their local clocks by requesting time intervals from server nodes, and server nodes maintaining their local clocks either by requesting time intervals from other server nodes or by receiving time informa-tion from an outside source.  Server nodes also provide time in-tervals to requesting clerk nodes and requesting server nodes with such a method.  System time is always increasing and monotonic and faulty servers are detected periodically.
Patent CA-1315428-C (CA)
Title: Communication terminal apparatus and its control method
Inventor: SASANO JUN
IPC: H04M1/715
Filed: 1989-08-11
Granted: 1993-03-30
Abstract: ABSTRACT OF THE DISCLOSURE      A communication terminal apparatus connected to an integrated services digital network as a digital network to transmit a data from an outgoing call office to an incoming  call  office  and  a method of  controlling  the communication terminal apparatus, in which notification of a person to be called for an incoming signal and acception or rejection of the incoming signal are controlled on the basis of a predetermined identification data contained in the incoming signal.   When detecting the identification data  contained  in  the  incoming  signal,  the  present apparatus compares the detected identification data with registration identification data previously registered so that,   if  the  apparatus  finds  a  coincidence  data therebetween, it informs the user of a data corresponding to  the  coincided  identification  data  visually  by  a character data or audibly by a sound.   If the apparatus fails to find a coincidence therebetween then it rejects the  acception  of  the  incoming  signal  containing  this identification data, while if it finds a coincidence then it grants the acception of the incoming signal containing the coincided identification data.
Patent CA-1336484-C (CA)
Inventor: BRENNAN JOHN J
IPC: A01K5/02
Filed: 1989-08-16
Granted: 1995-08-01
Abstract: An apparatus for the semi-automatic feeding of piglets up to 21 days old, comprises an open feeding trough  which  is  supplied  with  liquid  feed  in predetermined quantities at predetermined intervals. The inlet to the feed trough is disposed substantially centrally along the length of the trough,  in the vicinity of a raised area of the trough,  so that the feed distributes itself to the end of the trough under gravity.   The strong,  dominant animal of the group automatically makes to feed from the trough vicinity of the feed inlet,  and the sloping arrangement of the trough ensures that the smaller, weaker animals obtain an adequate supply of feed.   The trough surface is smooth and essentially free from crevices, recesses and the like,  so that it is essentially cleaned by the feeding piglets themselves.
Patent CA-1330354-C (CA)
Inventor: FRANKS GEORGE J JR
IPC: H01H15/02
Filed: 1989-09-08
Granted: 1994-06-21
Abstract: ABSTRACT          An electrical slide switch contains an extendible actuator mechanism.  The actuator mechanism is initially flash with the housing, in an inactive position,  and can be extended outwardly from the housing and locked in an active switching position after the switch is inverted into a printed circuit board.  The actuator is movable along a guide ramp from the inactive position to the active position in which the actuator button and control carrier are locked together for further movement.
Patent CA-1326771-C (CA)
Inventor: GOULD GREGORY
IPC: G01N1/20
Filed: 1989-09-29
Granted: 1994-02-08
Abstract: METHOD AND APPARATUS FOR AUDITING MEANS USED FOR   MEASURING CHARACTERISTICS OF A BULK MATERIAL AND FOR EXTRACTING AN ALIQUOT FROM A BULK MATERIAL                    ABSTRACT OF THE DISCLOSURE    This invention concerns a method and an apparatus for auditing the means of measuring one or more variables which affect the accuracy or the reliability of the results obtained by devices used to measure particular characteristics of a bulk material, especially during handling and processing, and when said characteristics are measured on an aliquot extracted from said bulk material, a method and an apparatus for concurrently auditing one or more variables affecting the accuracy or reliability of the means for extracting an aliquot of said bulk material.