baber/WOPTO huggingface dataset:
Patent CA-2021681-A1 (CA)
Inventor: FUJI HIROSHI
IPC: G11B27/19
Filed: 1990-07-20
Abstract: The present invention is an information recording and reproducing device, which records, erases and reproduces information on and from a memory device having pre-format sections, includes a pre-recorded area detection circuit for detecting a pre-recorded area having information predeterminately recorded and located on the memory device, and timing control circuits for providing timing control of an information recording, erasing or reproducing operation according to a pre-recorded area detecting signal released from the pre-recorded area detection circuit. Therefore, the timing of each recording, reproducing, or erasing operation is accurately determined. Additionally, the timing control may be performed according to both the pre-recorded area detecting signal of the present invention and the conventional synchronization detection signal. In case an error should occur in the synchronization detection signals, since the pre-recorded area detecting signal is released every time pre-recorded information for a sector mark or the like is reproduced, an accurate timing control without time lag is achieved according to the pre-recorded area detecting signals.
Patent CA-2024020-A1 (CA)
Inventor: RIOPEL RONALD A
IPC: B65D90/52
Filed: 1990-08-27
Abstract: ABSTRACT OF THE DISCLOSURE A  sealed  tank gauge consisting of  a sealed housing having a partitioning wall which divides the housing into a first chamber and a second chamber.   The partitioning wall has an interconnecting opening between the first chamber and the  second  chamber.    A  rotatably  mounted  shaft  extends through  the  opening  in  the  partitioning wall,  the  shaft having a first end disposed in the first chamber and a second end disposed in the second chamber.   A seal is provided to form a seal between the shaft and the opening.  A sheave is mounted on each end of the shaft.  A cable is wrapped around each  sheave.    A  float  is  secured  to  one  cable  and  a counterweight/indicator is secured to the other cable.   The positioning of the counterweight/indicator in relation to a visual display indicates the positioning of the float within a storage tank.  There is an inverse relationship between the positioning   of   the   counterweight/indicator   and   the positioning of the float.
Patent CA-2024503-A1 (CA)
Title: Remote sensor communications system and method
Inventor: ST MARTIN MICHAEL J
IPC: H04Q9/00
Filed: 1990-08-31
Abstract: PATENT                      Abstract A four-wire system is disclosed for communicating between the host station and  several remote stations.  A first pair of wires is employed across which the remote stations are coupled in shunt, and over which the host station addresses the particular remote station with which it wishes to communicate, and supplies power to the several remote stations.  The remote stations are coupled in shunt to a second pair of wires and transmit real time analog information to the host station over the second pair of wires.  Each remote station includes a receiving section, which determines whether an address appearing on the first pair of wires corresponds to the particular remote station, and if so, activates power to a transmitting section therein.  The transmitting section responds to control information extracted by the receiving section from the address and transmits selected real time information back to the host station over the second pair of wires by way of a differential voltage format.  The control information includes instructions as to the source of real time information to be transmitted by the transmitting section to the host station.
Patent CA-2025898-A1 (CA)
Title: Down-hole mud actuated hammer
Inventor: HALL DAVID R
IPC: E21B4/14
Filed: 1990-01-22
Abstract: Improvements in down-hole mud actuated hammers are disclosed. According to its broadest aspect the invention is a down-hole mud actuated hammer for use in a drill string, which includes a housing (1) with an upper end having means for connecting to the drill string. A throat (3) is located within the housing (1) which throat includes a main flow passage (61) to allow high pressure drilling mud to pass therethrough. A piston (2) is provided which is adapted to move axially within the housing means to thereby reciprocate between an up position and a down position. The piston (2) is moved between the up and down position by a minor portion of the high pressure mud which portion passes from the main flow passage (61) into at least one piston actuating chamber (67). This minor portion of mud is exhausted from the piston actuating chamber to a low pressure region out of the housing without being returned to the main flow passage.
Patent CA-2026981-A1 (CA)
Title: Liquid toner supply system and method
Inventor: DUCHESNE MARK F
IPC: G03G15/10
Filed: 1990-10-04
Abstract: Abstract An automated system and method are provided to supply a liquid toner dispersion to the printing station of a high speed electrophotographic printing press.  A highly concentrated form of the liquid toner dispersion is supplied in a first container.  Density measurement of the liquid toner in a process tank controls the feed of concentrate to the process tank.  Liquid level switches in the process tank control toner carrier liquid flow to the process tank.  Conductivity sensor monitoring of the toner in the process tank controls the flow of liquid charge control agent into the process tank.  Flow rate of the liquid toner from the process tank to the printing station of the printing unit is controlled by a sensor, logic circuitry, and motorized adjustable flow valve and flow meter.
Patent CA-2028737-A1 (CA)
Title: Method for setting well casing using a resin coated particulate
Inventor: FITZPATRICK HARVEY J
IPC: E21B29/00
Filed: 1990-10-29
Abstract: ABSTRACT   An improved method for completing wells formed in both con solidated and unconsolidated formations is disclosed.  Further, methods are disclosed for completing deviated wells formed in consolidated formations which require stimulation by hydraulic fracturing.  The present invention specifically relates to more efficient, less expensive techniques for well completion comprising novel techniques for the utilization of permeably con-solidatably, resin coated particulates.
Patent CA-2029966-A1 (CA)
Title: Record material utilising a vinyl carbinol or derivative thereof as a chromogenic compound
Inventor: SHANTON KENNETH J
IPC: B41M5/132
Filed: 1990-11-14
Abstract: ABSTRACT     Pressure- or heat-sensitive record material utilises a chromogenic material of the formula (I) (Ia or Ib):                               (I) (Ia)    (Ib) in which: one of A1 and A3 is an optionally-substituted carbocyclic aryl group and the other of A1 and A3 is either an optionally-substituted aryl group which is the same as or different from A1, or an optionally-substituted nitrogen-containing aromatic heterocyclic group, with the proviso that if both A1 and A3 are aryl groups, then at least one of A1 and A3 has a substituted amino or -N-heterocyclic substituent in the 4- position (relative to the bond joining A1 or A3 respectively to the remainder of the molecule); A2 is hydrogen or an optionally-substituted aryl, alkyl or aralkyl group; and A4 is hydrogen or an optionally-substituted alkyl, aryl or aralkyl group.
Patent CA-2031603-A1 (CA)
Inventor: FARMER JAMES
IPC: H04N7/16
Filed: 1990-12-05
Abstract: Television  service  denial  apparatus  comprises  a microprocessor controller for controlling the generation of a control signal waveform.   The control signal toggles a program denial device between first and second conditions. The program denial device, responsive to the control signal waveform,  only periodically outputs  a television  signal spectrum to which a sophisticated television receiver is able to synchronize.  Consequently, the program denial device may be a device having only 20 dB of signal isolation.  In one embodiment,  the program denial device comprises a signal modulator  for  modulating  an  incoming  television  signal spectrum including one continuous wave carrier channel having no superimposed video.  A character generator, responsive to the microprocessor, generates a control signal waveform for controlling  the  operation  of  the  signal  modulator. Consequently, while all television channels are obfuscated by the signal modulator during a period of service denial, the continuous wave carrier is modulated with a message signal for delivering a message to the subscriber on the continuous wave carrier channel indicating why service is disconnected.
Patent CA-2033984-A1 (CA)
Title: Method for the production of human monoclonal antibodies
Inventor: WATZEK CARL
IPC: C12N5/24
Filed: 1990-06-20
Abstract: The process of the invention comprises the following steps: (a) isolation and preparation of cells exhibiting antigens, TH and B  cell precursors from tumour-infiltrated people, those infected with procaryotic or eucaryotic exciters, especially viruses, or those with a hereditary disease; (b) activation of the TH and B  cell precursors of (a) by bonding to the cells of (a) exhibiting antigens; (c) isolation and preparation of B cells from tumour-infiltrated people, those infected with procaryotic or eucaryotic exciters, especially viruses, those with a serious disease or healthy people; (d) activating the B cells of (c) by bonding to the antigen-activated TH and B cell precursors of (b), and (e) cloning the activated B cells of (d).
Patent CA-2034233-A1 (CA)
Inventor: HEIDEMANN ROLF
IPC: H04J14/02
Filed: 1991-01-15
Abstract: ABSTRACT OF THE DISCLOSURE      The invention is based on the problem of transmitting a frequency-division multiplex signal occupying a broad frequency band, e.g., the cable television frequency band of 47-440 MHz, over an optical waveguide transmission section.  According to the invention, in the transmitting unit, the whole frequency band to be transmitted is divided into two sub-bands (FB1, FB2), and the lower sub-band (FB1) is converted by means of single-sideband amplitude modulation of a high-frequency carrier (f0) into a higher-frequency transmission frequency band, e.g. 497-688 MHz, which is less than one octave in width, based on its lowest frequency.  The lower sub-band (FB1) and the transmission frequency band produced by the conversion are converted separately into optical signals with different wavelengths (.lambda.1, .lambda.2) and are transmitted in a wavelength multiplex procedure via the optical waveguide.  Because of the limitation of less than one octave, second-order intermodulation products, which are usually formed during conversion into an optical signal, fall into unoccupied frequency regions.  A corresponding reverse processing is carried out on the receiving side.
Patent CA-2042770-A1 (CA)
Title: Process for making segmented sheathed pad brake lining and lining therefrom
IPC: B22F7/08
Filed: 1991-05-16
Abstract: The invention relates to a method of manufacturing a brake lining (120, 15 and 3) in which the cores (120) with a less fragile enclosure (15) are fixed non-contiguously to a metal support (3), characterised by the following steps: 
 
  (a) a bond surface on the support (3) is prepared by coating it with a braze welding suspension which is oxidised and reduced; 
  (b) preparatory cores (120) consisting of powdered friction products, and preparatory enclosures (15) consisting of metal powders (150) with internal diameters equal to 1.005 to 1.05 times the external diameters of said preparatory cores (120), are moulded and compacted; 
  (c) and (d) these enclosures (15) are arranged around said preparatory cores (120) and sintered, resulting in preparatory sleeved cores which are placed on the bonding surface of the support (3) and welded to this support (3) by a heat treatment; and 
  (e) said preparatory sleeved cores are then forged at 400 DEG C, thereby shortening them by at least 15%, and thus obtaining a brake lining (120 and 15 and 3). 
 
<??>The invention also relates to the resulting brake lining, which is used for the brakes of railway and motor vehicles, aircraft and industrial machines. 
<IMAGE>
Patent CA-2050095-A1 (CA)
Inventor: JEAN JAU-HO
IPC: C04B35/00
Filed: 1991-08-28
Abstract: Abstract of the Disclosure A ceramic composition for forming a ceramic dielectric body having a dielectric constant of less than about 4.6.  The composition comprises a mixture of finely divided particles of 35-55 vol.% borosilicate glass and 45-65 vol.% cordierite.  The exact particle size ratio of the cordierite to borosilicate glass that is used will depend on the proportions of the components, the desired fired density and the firing temperature.  The composition can be used with a polymeric binder to produce an unfired green tape which is co-fireable with high conductivity metallurgies such as gold, silver and silver/palladium.
Patent CA-2053613-A1 (CA)
Title: Tampon applicator
Inventor: SCHOELLING HANS-WERNER
IPC: F02B3/06
Filed: 1991-10-17
Abstract: The invention is related to a tampon applicator (10) made of plastic, especially for feminine hygiene, consisting of an approximately cylindircal outer sleeve (12) which is intended for receiving a tampon (14) and in the rear end of which there is inserted in an axially non-displaceable manner hollow grip piece (16), in which a slide (18) is arranged so as to be axially movable. The outer face of the slide (18) is connected in the vicinity of its fromt end, to the inner wall of the grip piece (16) by means of at least one predetermined breaking point (24). Thus, the tampon applicator can be produced from just two injection-molded parts allowing reduced expenditure on machinery and assembly. The slide is held captively in the grip piece until the tampon applicator is put to use.
Patent CA-2054916-A1 (CA)
Inventor: SERVAIS ALBERT
IPC: G02B1/14
Filed: 1991-11-04
Abstract: Un objet réfléchissant tel qu'un miroir ou un panneau transparent protégeant du rayonnement comprend un revêtement réfléchissant d'argent déposé sur une feuille de verre. Pour protéger l'argent contre la corrosion, on traite le revêtement au moyen d'une solution aqueuse acidifiée d'un sel stanneux, fraîchement fabriquée et dépourvue d'opalescence, de manière à augmenter la population d'atomes d'étain (II) dans une strate superficielle du revêtement.      L'invention concerne également un procéde de fabrication d'un tel objet.
Patent CA-2058428-A1 (CA)
Title: Analgesic formulations
Inventor: PUREWAL TARLOCHAN S
IPC: A61K31/445
Filed: 1990-01-04
Abstract: Fentanyl and physialogically acceptable derivatives thereof dissolved ar dispersed in an aerosol propellant to Form an aerosol formulation ~C~r administration by inhalation.
Patent CA-2061167-A1 (CA)
Title: Process for the purification of a highly glycolsylated protein
Inventor: KOLBE HANNO
IPC: C12P21/00
Filed: 1992-02-13
Abstract: The invention proposes a process for purifying a highly glycosylated protein from a crude preparation which comprises the action (i) of adding to said preparation a divalent metal ion in a sufficient amount in order to form a mixture which precipitates and (ii) after precipitation, of harvesting said protein from the mixture supernatant.
Patent CA-2062104-A1 (CA)
Inventor: NARITOMI TATSUO
IPC: C22B5/16
Filed: 1992-02-28
Abstract: Disclosed is an apparatus for producing a high-melting-point and high-toughness metal including a reducing vessel for reducing chlorides of the high-melting-point and high-toughness metal to be produced with an activated metal to form a high-melting-point and high-toughness sponge metal. A condensing vessel is provided for recovering a nonreacted activated metal and the chlorides remaining in the sponge metal formed in the reducing vessel by a vacuum separation.  The condensing vessel is arranged sideways relatively to the reducing vessel, the condensing vessel being integrally connected with the reducing vessel through a conduit, and at least one of the reducing vessel and/or the condensing vessel is supported so as to move with a thermal expansion of the conduit.
Patent CA-2062150-A1 (CA)
Inventor: KWON STEVEN S
IPC: A23L27/26
Filed: 1992-03-02
Abstract: A method for enhancing the flavour of a natural beef juice concentrate which comprises hydrolysing the beef juice concentrate with a protease and incubating the hydrolysed beef juice concentrate with a culture of a food-grade microorganism which is capable of producing aminopeptides.
Patent CA-2063458-A1 (CA)
Title: Flame-retardant thermoplastic resin composition, flame retardant, and process for preparing the flame retardant
Inventor: TAKAHASHI KATSUJI
IPC: C08G59/30
Filed: 1992-03-19
Abstract: ABSTRACT OF THE DISCLOSURE       A flame-retardant thermoplastic resin composition is disclosed, comprising (A) a thermoplastic resin and (B-1) a halogenated epoxy resin whose epoxy groups are blocked by a long  chain  aliphatic  carboxylic  acid  or  (B-2)  a mixture prepared by melt mixing (b1) a halogenated epoxy resin or (b2) a halogenated epoxy resin whose epoxy groups are blocked with (b3) a long chain aliphatic carboxylic acid.  The composition has easy release from mold and satisfactory thermal stability during molding.
Patent CA-2065527-A1 (CA)
Title: Picture frame
Inventor: TODD HAROLD F
IPC: A47G1/06
Filed: 1992-04-07
Abstract: Abstract An apparatus for framing a member, such as a picture, includes a first element for engagement with the member. The first element has an elongate recess.  A second element has a different aesthetic appearance than the first element.  The second element includes a portion which extends into the recess of the first element.  The first element has means for lockingly engaging the second element to secure the first and second elements together.
Patent CA-2066790-A1 (CA)
Title: Method and device for performing cholangiography
Inventor: KUMAR SARBJEET S
IPC: A61M3/02
Filed: 1992-04-22
Abstract: ABSTRACT OF THE DISCLOSURE         The present device discloses a grasping forceps with side channel.  A grasping forceps channel connects a clamp to a handle.  The clamp is shut to close off the gall bladder to prevent gall stones from travelling from the gall bladder into the cystic duct and into the bile duct.  The side channel is provided that is substantially parallel to the grasping forceps channel.          The side channel directs a catheter into the infundibulum on the side of the clamp away from the bile duct.  This catheter has a needle for application of a dye to the infundibulum.
Patent CA-2066865-A1 (CA)
Title: Shielded cathode ray tube
Inventor: MCGILL TERRENCE M
IPC: H04N5/64
Filed: 1992-04-22
Abstract: Abstract of the Disclosure A shielded CRT (18) display includes a secondary shielding enclosure (14) for enclosing the CRT (18) and for inhibiting electromagnetic emissions therefrom.  A primary shielded enclosure (12) internal to the secondary shielding enclosure (14) has a portion coaxial (16) with the neck portion (22) of the CRT (18) for also inhibiting electromagnetic emissions from the CRT (18).  The CRT (18) includes an internal conductive layer comprised of an internal aquadag, wire mask, and phosphor coating.  This internal conductive layer is grounded via a reactive path to ground to suppress electromagnetic emissions.  This double shielding suppression technique eliminates the need for external shielding of the face portion of the CRT (18).
Patent CA-2069914-A1 (CA)
IPC: H04W88/18
Filed: 1990-09-04
Abstract: 2069914 9106163 PCTABS00005 A central controller (40) operating as a pager terminal for receiving, handling, and transmitting messages is shown that adaptively alters its message handling characteristics in order to improve the overall throughput of the central controller. The channel loading characteristics, based upon the time of day, are used in order to vary the limitation of the size of message received by the central controller (40) as well as vary the transmission size and age of messages prior to transmission. Additionally, channel loading may be determined by determining the total size of messages within the central controller (40). In response to the total size determination, the limitation of the message size received by the controller (40) may be varied. Furthermore, the transmission size and age of messages prior to transmission may be varied in response to the total size determination. The central controller (40) may also adopt these operations in response to the combination of the total size determination and channel loading based upon the time of day characteristics.
Patent CA-2071200-A1 (CA)
Title: Fiber optic switch having a curved reflector
Inventor: LEE JERALD D
IPC: G02B26/08
Filed: 1990-12-07
Abstract: A switch (10) for controlling the transmission of light from a first optical fiber (F1) to at least at second optical fiber (F2) or from a single bidirectional optical fiber (F1) back to itself includes a housing (22) having a spherical concave reflector (40) mounted therewithin. Fiber mounting means (M) is provided for mounting optical fiber(s) at a predetermined location within the housing such that at least a portion of a beam of light emanating from the end face of one fiber propagates along an incidence path (52) toward the reflector from which it is reflected by the curved concave reflector along a predetermined reflectance path (54). A  light interrupter (60) is mounted within the housing for switchable movement between a light transmissive state and a light interruptive state. A light absorbing member (76) is positioned such that residual light reflected from the light interrupter is directed toward and absorbed by the light absorbing member. A switch presence indicator (70) for providing an indication that the light interrupter is disposed in the interdiction position may also be included.
Patent CA-2071643-A1 (CA)
Title: Process for joining workpiece part made of plastic
Inventor: KELDANY RACHID
IPC: B29C53/78
Filed: 1991-10-23
Abstract: In the process described for joining workpieces made of plastic along abutting edges, a permanently elastic compound adhering to the plastic and acting as a welding medium is applied along at least one of the edges and heated before the edges are brought into contact.
Patent CA-2072234-A1 (CA)
Title: Intensity correction device
Inventor: OKUMURA NAOJI
IPC: G09G5/10
Filed: 1992-06-24
Abstract: The invention relates to an intensity correction device for automatically adjusting an intensity of an input video signal to an optical image by detecting luminance characteristics of the input signal, and provide intensity correction with maintaining a clear image by reducing magnitude of the correction signal or by not effecting correction when the luminance level of the input luminance signal is concentrated to a certain luminance level. The intensity correction device includes a histogram memory, a look-up table operating circuit, a look-up table, a maximum value detecting circuit, and an invertor and a multiplier, limiter, or a gain control circuit. By this, when a luminance level of the input video signal is concentrated to a certain luminance level, magnitude of the correction can be reduced or made zero. Therefore, by detecting the characteristics of the input image, the intensity of the input video signal can be automatically corrected to the optimal image for providing better picture quality.