baber/WOPTO huggingface dataset:
Patent CA-2024806-A1 (CA)
Title: Method of producing ceramics-type superconductor wire
Inventor: HAYASHI KAZUHIKO
IPC: C04B35/45
Filed: 1990-01-11
Abstract: In order to obtain a ceramics-type superconducting wire, a bulk type ceramics-type superconductor or its precursor previously treated to have orientativity in its crystal structure is reduced in diameter in a state charged in a metallic pipe, thereby being elongated, and then heat treated.  In the as-formed superconducting wire, crystal orientativity of a bulk formed of the superconductor or its precursor is maintained, whereby it is possible to obtain a superconducting wire having high critical current density.  In order to further improve the critical current density, it is effective that the diameter reduction working step and the heat treatment step are alternately repeated a plurality of times.
Patent CA-2025086-A1 (CA)
Title: Locking fastener
Inventor: AITTAMA ROBERT W
IPC: F16B39/32
Filed: 1990-09-11
Abstract: Abstract of the Disclosure A two member threaded fastener includes integral ribs and/or locking fingers formed concentrically around threaded portions of the two members which make up each fastener.  The ribs and/or locking fingers interferingly interengage one another as the two members are threadedly intermated to either removably or permanently lock the members together as desired for a given application. Preferably, the locking fastener members are formed of a polymeric resin and include concentric annular rings which are spaced from the threaded portions of the fastener members by interconnecting webs and define axially extending ribs.  The ribs are rounded and preferably sinusoidal for removably locking fastener members and are serrated for permanently locking fastener members.
Patent CA-2029292-A1 (CA)
Title: Determination of gas properties at reference conditions
Inventor: BONNE ULRICH
IPC: G01N25/18
Filed: 1990-11-05
Abstract: A method of determination of gas properties at reference conditions of temperature and pressure. This determination is needed in systems including mass flow meters, combustion control systems, gas meters and the like. The system disclosed enables the determination of properties including specific heat and thermal conductivity at reference conditions.
Patent CA-2030196-A1 (CA)
Inventor: STILES FRANK B
IPC: A61F2/92
Filed: 1990-11-16
Abstract: An apparatus for correcting narrowing of a fluid vessel of the body comprising a catheter, for insertion into the blood vessel at a location remote from a region of narrowing, and a fluid vessel liner. The liner is comprised of a radially resiliently compressible tube having an elongated split along one side thereof.  The edges of the sides of the liner on each side of the split overlap each other.  The liner is contained within the catheter adjacent a tip of the catheter in a compressed condition.  The catheter is constructed for expulsion of the liner from the catheter forward of the catheter at the region of narrowing, thereby facilitating expansion of the tube to a natural expanded condition so as to support the blood vessel from the interior to the diameter of the tube in its naturally expanded diameter.
Patent CA-2030918-A1 (CA)
Inventor: KIUCHI MITSUYUKI
IPC: D06F34/22
Filed: 1990-11-27
Abstract: The control device for a washing machine is provided to have a function of testing the working characteristic of the transmission sensing device for sensing light transmission of water filled while the water supplied in a washing bath is fresh before putting detergent therein or stirring the cloth for rinsing.          The control device makes it possible to automatically test the working characteristic of the transmission sensing device and judge if abnormality takes place if the washing or rinsing operation is executed while the washing machine is in operation.
Patent CA-2031801-A1 (CA)
Title: Variable bit rate coding system
Inventor: AKAMINE MASAMI
IPC: H04B1/66
Filed: 1990-12-07
Abstract: Abstract of the Disclosure A variable bit rate coding system has less degrada-tion of the quality of a decoded signal with respect to packet-by-packet signal abandonment to thereby ensure a stable quality and has high coding efficiency.  The variable bit rate coding system is characterized in that a sequence of digital signals is divided into signals of a plurality of band areas, and the divided signals are encoded frame by frame.  The present system as a whole eliminates the correlation or redundance of the input signal, thus ensuring highly-efficient encoding of the input signal, and maintains the quality of the decoded signal on the receiver side at a constant high level, enhancing the coding efficiency.
Patent CA-2034529-A1 (CA)
Title: Toy audio device
Inventor: KWAN DAVID C K
IPC: A63H5/04
Filed: 1991-01-18
Abstract: ABSTRACT OF THE DISCLOSURE         A toy audio generating device is disclosed for use as an accessory to another toy, for example as a backpack for a toy ac-tion figure.  The toy audio device comprises a receptacle defin-ing an enclosure containing a speaker and plural batteries laid out side-by-side adjacent the end of the speaker opposite the sound projecting portion of the speaker.  A printed circuit board containing circuitry for generating audio signals is located in a space alongside the speaker under a side wall of the enclosure.         A switch for activating sound generation is mounted to that side wall and directly contacts the printed circuit board.
Patent CA-2034660-A1 (CA)
Inventor: YANG HENRY S
IPC: H04L5/14
Filed: 1991-01-21
Abstract: A technique for establishing and maintaining full duplex communication between two stations connect-ed to a token ring network, without dedicated connections.  In an auto-configuration full duplex mode of operation, each station ascertains whether there are only two active stations on the network and, if so, performs an exchange of frames with the other station to establish full duplex communication.  Once established, full duplex communication can proceed at a greater bandwidth than communication in a token ring network, and without latency delays and distance limitations associated with token ring networks.       Periodic checks are made by each station in full duplex communication, to ascertain if the other station is still participating or if any third station has become active. In either case, stations in the auto-configuration mode revert to token ring mode auto-matically. In a variant form of the invention, stations can operate in a fixed full duplex mode, in which the detection of tokens or third stations are merely reported and do not necessarily result in reversion to the token ring mode.
Patent CA-2034996-A1 (CA)
Title: Non mechanical electronic switch for pedestrian crossing lights
Inventor: NICHOLLS JOHN T
IPC: G08G1/005
Filed: 1991-01-25
Abstract: ABSTRACT OF THE INVENTION         There  is  provided  a new  and useful  non mechanical electronic switch for a pedestrian crossing light comprising a housing with side walls and an end wall, an AC capacitive sensor operatively mounted on the end wall of the house and circuitry electrically  associated  with  the  capacitive  sensor  to  be electrically connected in operation to the crossing light,  the sensor actuatable on detecting in its vicinity the hand or the like of a pedestrian to activate the circuitry to operate the crossing light.
Patent CA-2036753-A1 (CA)
Title: Apparatus for deep drawing an open bowl
Inventor: REIL WILHELM
IPC: B29B13/02
Filed: 1991-02-20
Abstract: Abstract Apparatus for deep drawing an open bowl Described is an apparatus for deep drawing a bowl (8b) from a blank  (8)  of  deep-drawable  plastics  material  comprising,  movably relative to each other (arrow 20), deep drawing tools (16) and co-operating jaws.       In order to increase the machine output and reduce the wastage as far as possible and in order further substantially to facilitate the difficult handling of thermoplastic material webs, it is provided in accordance with the invention that provided as the co-operating jaw is a main suction plate  (7b) which is secured to a heatable main carrier (6) and which is intermittently movable together with the main carrier  (6)  as  a  forward  feed  heating  jaw  in  a direction  (21) perpendicularly to the direction of movement (20) of the deep drawing tool (16) by means of a lift device, that fixed at a spacing from the lower main suction plate (7b) to the main carrier (6) is at least one further central main suction plate (7a) as a forward feed heating jaw (5)  and that arranged beside the deep drawing tool (16) and at a spacing therefrom is an outside heating jaw (14) which is movable intermittently parallel to the direction of movement (20) of the deep drawing tool, in such a way that the outside suction plate (13, 13a) and the main suction plate (7a,  7b) are opposite each other for a period of time.
Patent CA-2039536-A1 (CA)
Inventor: YAMAGUCHI NORIYUKI
IPC: H04N9/78
Filed: 1991-04-02
Abstract: The present invention relates to a filter for separating luminance and color signals from a composite color television signal    in  which  the  frequency  of  the  color  signal  is multiplexed over  the  high-frequency  region of  the  luminance signal.    When  a  picture  is  detected  with  respect  to  its motion  under  frame  correlation  and  if  that  motion  is relatively  small,   the  separation  of  luminance  and  color signals is performed based  on the interframe correlation. If the motion is  relatively large,  the separation of luminance and   color   signals   is   made  based   on   the   interfield correlation.  The luminance and color signal  separation based on the interfield correlation is  attained from a correlation with signals  in  fields spaced forwardly and rearwardly away from the subject field by one field. This is accomplished by selecting  a  calculation  having  the  highest  correlation  in calculations for an objective sample point and a plurality of sample points located about the objective sæmple point. Such a  correlation  is  determined by checking the  correlation of image signals  in the set of sample points which are spaced apart  from one another by one frame and located around the objective sample point.
Patent CA-2039939-A1 (CA)
Inventor: DARCHIS FRANCOIS
IPC: F25J3/04
Filed: 1991-04-08
Abstract: On introduit en tête de la colonne, dès le démarrage de l'installation, un débit d'azote liquide au moins égal au débit nominal d'azote gazeux, puis on régule le débit d'azote liquide sur une faible fraction de ce débit nominal. Application à la production d'azote gazeux à débit variable et modéré.
Patent CA-2041778-A1 (CA)
Title: Method and apparatus for rheocasting
Inventor: KELLY JAMES E
IPC: C22C1/00
Filed: 1991-05-03
Abstract: Abstract A method and apparatus for rheocasting (slurry casting) molten metal employ a stirring chamber located upstream of a casting mold.  Electromagnetic stirring is employed in both the stirring chamber and the casting mold.  Structure is provided for minimizing secondary recirculating flows in the molten metal as it flows downstream through the apparatus, for preventing hangers and for eliminating the columnar dendritic zone at the periphery of the casting.  The efficiency of utilization of the magnetic field is optimized as is the agitation required for producing a desired fine, spheroidal, degenerate dendritic grain structure in the solidified casting.
Patent CA-2042103-A1 (CA)
Title: Process for co-oligomerizing 1,3-di-isopropenyl benzene and alpha-olefins to prepare synthetic lubricant base stocks having improved properties
Inventor: SANDERSON JOHN R
IPC: C07C2/02
Filed: 1991-05-08
Abstract: ABSTRACT (D# 80,944-F) A process is disclosed for preparing synthetic lubricant base stocks having improved properties.  Synthetic lubricant base stocks may be prepared in good yield by oligomerizing linear olefins  using  certain  acidic  calcium  montmorillonite  clay catalysts.  When a mixture of 1,3-di-isopropenyl benzene and long-chain alpha-olefin is used, in which up to about 20 wt.% of the mixture comprises 1,3-di-isopropenyl benzene, and the co-oligomers prepared therefrom are hydrogenated, a synthetic lubricant base stock having a lower pour point and a higher viscosity is prepared.
Patent CA-2046830-A1 (CA)
Inventor: DELUCA PATRICK P
IPC: A61K47/48
Filed: 1991-07-11
Abstract: A drug delivery system far controlled release of a protein or polypeptide comprising a hydrophobic biodegradable polymer and a protein or polypeptide. A physical interaction is present between the polymer and the protein or polypeptide, thus, allowing protection and controlled release of the protein or polypeptide in-vivo.      The drug delivery system may be prepared by a polymer precipitation technique or a microsphere technique.
Patent CA-2047717-A1 (CA)
Title: Anticorps monoclonaux contre de petites molecules et methodes pour les preparer
Inventor: WAGNER FRED W
IPC: C07K16/00
Filed: 1990-03-14
Abstract: L'invention concerne des anticorps monoclonaux, leurs fragments, des chaînes individuelles et des imitateurs polypeptidiques de leurs régions hypervariables immuniréagissant avec des petites fractions simples telles que des cations métalliques et des petites molécules organiques, les hybridomes permettant la production des anticorps monoclonaux, des composés immunogènes permettant de développer les hybridomes, ainsi que des procédés d'utilisation des anticorps monoclonaux.
Patent CA-2048164-A1 (CA)
Title: Photoimageable electrodepositable photoresist composition
Inventor: OLSON KURT G
IPC: G03F7/031
Filed: 1991-07-30
Abstract: An electrodepositable photoresist composition comprising an aqueous dispersion of:  (a) a water-dispersible neutralized cationic polymeric material having a pendant unsaturation, (b) a nonionic unsaturated material and (c) a photoinitiator; characterized in that it can form smooth, thin and pinhole free coatings and further characterized in that the film is capable of being selectively insolubilized by patterned radiation exposure such that the unexposed portion of the film is soluble in dilute aqueous acid and the exposed portion is insoluble in said aqueous acid.
Patent CA-2051695-A1 (CA)
Inventor: TROTTEIN FRANCOIS
IPC: C12N15/54
Filed: 1991-02-06
Abstract: 2051695 9112327 PCTABS00105 L'invention concerne une glutathion-S-transférase de Schistosoma mansoni, ayant un poids moléculaire de 26 Kd, appelée p26 ou Sm26 ainsi que les moyens de production de cette protéine sous une forme substantiellement purifiée.
Patent CA-2054229-A1 (CA)
Title: A method for the reduction or prevention of tannin-staining on a surfacesusceptible to tannin-staining through the use of a complexing agent fora transition-metal ion and compositions containing such a complexing agent
Inventor: MCNEEL THOMAS E
IPC: C09D7/12
Filed: 1991-10-25
Abstract: Discoloration of surfaces, such as painted or treated wood surfaces, by tannin-staining caused by the complexing of certain transition metal ions with tannate ions (the process is often referred to in the art as "tannin-stain bleed") is reduced or prevented (eliminated) by contacting a transition natal ion on a painted surface or surface to be painted with a complexing agent for the transition metal ion, such as by the addition of the complexing agent for the transition-metal ion to paint formulations or by pretreatment of the wood surface with the complexing agent before painting. It is believed that the complexing agents form coordination complexes with transition-metal ions on the surface of and within the paint film, thus preventing the formation of highly-colored complexes of the transition metal ions with the tannate ions derived from the tannins in the wood. This technique is applicable to all woods and other surfaces susceptible to tannin-staining and especially to stain-susceptible woods such as redwood and cedar. Using appropriate formulation or application techniques, the method may be used with water-based or solvent-based paints.
Patent CA-2054913-A1 (CA)
Title: Apparatus and method for detecting hidden marks on progressive aspheric ophthalmic lenses
Inventor: SMITH LUTHER W
IPC: B01L9/00
Filed: 1991-11-04
Abstract: AN APPARATUS AND METHOD FOR DETECTING HIDDEN MARKS     ON PROGRESSIVE ASPHERIC OPHTHALMIC LENSES     Abstract of the Invention:     A device for detecting hidden marks on progressive aspheric ophthalmic lens is disclosed.  The device includes a housing, a light source within the housing, a magnifying lens mounted above the housing and a target element mounted within the housing between the light source and the magnifying lens.  A progressive aspheric ophthalmic lens is supported by the housing at a position between the target element and the magnifying lens.  A light beam is directed from the light source through the target element, the ophthalmic lens and the magnifying lens.  The ophthalmic lens is then visually inspected through the magnifying lens against a background provided by the target element to detect the hidden marks.
Patent CA-2056556-A1 (CA)
Title: Absorbent for lower aldehydes
Inventor: TSUTSUMI YOSHIO
IPC: B01D53/02
Filed: 1991-11-28
Abstract: The present invention relates to an adsorbent for lower aldehydes, which comprises a saturated cyclic secondary amine and a porous carrier therefor. The adsorbent can eliminate lower aldehydes efficiently at ordinary temperature over a long period and, furthermore, is inexpensive. And the adsorbent when a halogenide of an alkali metal or alkaline earth metal is further supported on the porous carrier, has an excellent heat resistance.
Patent CA-2057398-A1 (CA)
Inventor: KREUZ JOHN A
IPC: C09J7/02
Filed: 1991-12-11
Abstract: TITLE TETRAPOLYIMIDE FILM CONTAINING BENZOPHENONE TETRACARBOXYLIC DIANHYDRIDE               ABSTRACT OF THE DISCLOSURE      Tetrapolyimide films derived from 3,3',4,4'-benzo-phenone tetracarboxylic dianhydride, pyromellitic acid dianhydride, p-phenylene diamine and 4,4'-diamino-diphenyl ether, and their preparation, are described. The tetrapolymer films have low water absorption, low coefficients of thermal and hygroscopic expansion, high modulus and are caustic etchable and can be used in flexible printed circuit and tape automated bonding applications.
Patent CA-2062948-A1 (CA)
Title: Process and apparatus for measuring the gelation of parafinic petroleum products, namely croudes
Inventor: CANDAU SAUVEUR
IPC: G01N33/22
Filed: 1990-06-26
Abstract: The invention relates to a process and a device for measuring the gelling of paraffin petroleum products, in particular, crude oil. The process involves: measuring, with respect to the temperature and over a given thickness, the propagation velocity and the amplitude of an ultrasonic wave in the crude oil being analysed; then determining the transition temperature Tt, at which a sudden change in the thermal variation in the inverse of the propagation velocity is observed; determining the ratio of the slopes for the propagation velocity inverse obtained between the linear parts of the thermal variation of said propagation velocity, around said break point corresponding to Tt, above and below, respectively, the determined temperature Tt; determining the ultrasonic signal amplitude difference  DELTA A between the temperature Tt and a given lower reference temperature, for example Tt-5 DEG C.
Patent CA-2064863-A1 (CA)
Inventor: MATTHEWS LESLIE N
IPC: B23D61/02
Filed: 1990-08-17
Abstract: ABSTRACT      This invention relates to a rotary cutter comprising a central member adapted to be mounted to a shaft for rotation therewith and supporting a plurality of teeth located at intervals around a circular path, each tooth having at least one cutting edge, a second member adapted to be mounted in association with the first member for rotation therewith and being capable of selective angular displacement in relation to the first member, said second member supporting a set of guides located at intervals around a circular path such that each guide is associated with one tooth of the plurality of teeth and is located ahead of said tooth.
Patent CA-2065816-A1 (CA)
Title: Fm modulator circuit having separate modulation and channel signal paths
Inventor: TWITCHELL EDWIN R
IPC: H04B1/04
Filed: 1992-04-10
Abstract: Abstract An FM modulator circuit is provided having separate modulation and channel signal paths.  The modulation path includes a numerically controlled modulated oscillator which receives a modulation signal and provides a modulated intermediate frequency signal which has been frequency modulated in accordance with the modulation signal. channel select number is provided representative of a channel of a desired frequency.  A channel signal path is provided including local oscillator means for receiving the channel select signal and providing a channel signal of the desired frequency.  The modulated intermediate frequency is then combined with the channel signal to provide the desired FM output signal.
Patent CA-2066629-A1 (CA)
Title: Disjoncteur enfichable
Inventor: RUNYAN DANIEL J
IPC: H01H83/02
Filed: 1991-07-19
Abstract: Un disjoncteur enfichable du type interrupteur de mise à la terre comprend une mâchoire élastique (42) destinée à s'appliquer sur la barre du neutre dans une sous-station. La mâchoire est pourvue à son extrémité d'une barrette conductrice (70) qui passe à travers la fenêtre d'un transformateur (78) et aboutit à une borne filetée (28) destinée au raccordement à un conducteur de charge neutre (29). Le trajet conducteur de phase comprend aussi une barrette conductrice (8) qui est couplée à un bout à une borne conductrice de charge de phase et à son autre bout au mécanisme (24) déclenchant le disjoncteur. Le transformateur et les deux barrettes conductrices sont montés sur une plaquette de circuits imprimés qui est située à l'intérieur du boîtier de disjoncteur. L'invention élimine la nécessité d'une queue de cochon distincte pour connecter le conducteur de charge neutre à la barre du neutre de la sous-station.
Patent CA-2067593-A1 (CA)
Title: Edge integrating phase detector
Inventor: MATHIEU ALAN E
IPC: H03L7/091
Filed: 1992-04-29
Abstract: Abstract of the Disclosure A edge integrating phase detector for a phase locked loop passes a portion of a sync edge an input video signal as a sampled signal to an integrator (16) in response to a gate pulse nominally centered on a timing reference point of the sync edge. The sampled signal has a positive and negative portion. The integrator produces from the sampled signal a control signal for a VCO (12) that is proportional to the unbalance between the positive and negative portions. The gate pulse is generated from the output of the VCO as a function of the nominal period of the input video signal.
Patent CA-2071833-A1 (CA)
Title: Red blood cell storage solution
Inventor: PAYRAT JEAN-MARC
IPC: A01N1/02
Filed: 1991-10-30
Abstract: The present invention provides an improved aqueous solution for suspending and storing red blood cells. The solution includes sodium citrate, a combination of sodium biphosphate and sodium phosphate dibasic, adenine, and mannitol. The solution is formulated at a low osmolarity and has a physiological pH of approximately 7.4. The solution simultaneously maintains stored red cells ATP and 2,3-BPG.
Patent CA-2072661-A1 (CA)
Inventor: BIELAGUS JOSEPH B
IPC: B07B1/46
Filed: 1990-09-27
Abstract: A wood particle screen (10) particularly useful for separating fines from wood chips in which a bed of flexible foraminous material (50) having holes therein sized to permit fines to pass therethrough is flexibly mounted for receiving a flow of wood chips and fines thereon. Beater rolls (60, 62, 64, 66, 68, 70, 72) are disposed beneath the screening bed, each including a plurality of spaced beater bars (92, 94, 96) so positioned as to contact the bottom of the screening bed as the bars rotate through the upper-most position of the rolls.