baber/WOPTO huggingface dataset:
Patent CA-2056247-C (CA)
Title: Hinged metal band device mainly for moving heavy loads
Inventor: BURGER RAYMOND
IPC: B65G23/00
Filed: 1991-11-27
Granted: 1999-02-02
Abstract: Device characterised in that, at each lateral edge of the band (1) is arranged a handling chain (2), each of the metal plates (1') being connected to at least one of the links (2') of each handling chain (2), and in that the pinions (13) engaging with the rolling chain or chains (4) are arranged, at each end of the device, between the pinions (11) engaging with the handling chains (2) and over the same shaft (8) as the latter, the drive ratio between the two types of pinions (11, 13) being such that the linear speed of the endless metal band (1) is equal to twice the linear speed of the rolling chains (4). 
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Patent CA-2058935-C (CA)
Title: Pharmaceutical compositions and method for treatment using alzheimer's amyloid peptides
Inventor: KATUNUMA NOBUHIKO
IPC: G01N33/68
Filed: 1990-06-04
Granted: 1997-12-09
Abstract: Pharmaceutical compositions containing a 57 amino acid protease inhibitor and uses for those compositions are taught. The protease inhibitor is referred to as A4i which is associated with Alzheimer's disease. In addition to the A4i protease, other analogs are taught as are pharmaceutical compositions containing such analogs and their uses in treating a variety of abnormalities associated with Kunitz-type basic protease inhibitors. For example, it has been found that pharmaceutical compositions containing A4i protease and analogs thereof inhibit plasmin and tryptase, and also inhibit pancreatic trypsin, alpha-chymotrypsin, tissue kallikrein and serum kallikrein. In that certain diseases are associated with a general release of proteases such as trypsin, ehymo-trypsin and elastase into the circulatory system pharmaceutical compositions containing A4i and analogs thereof can be used in the management of such diseases.
Patent CA-2061462-C (CA)
Title: Speech signal coding and decoding system transmitting allowance range information
Inventor: TANAKA YOSHINORI
IPC: G10L25/90
Filed: 1992-02-19
Granted: 1996-04-30
Abstract: A speech signal coding apparatus inputs a pitch period generated by coding a speech signal, and outputs information on a range for said pitch period, together with the pitch period. A speech signal decoding apparatus inputs the pitch period and the above information on the range, and determines whether or not the pitch period is within the range. When the pitch period is determined to be within the range, the speech signal decoding apparatus outputs the above pitch period. When the pitch period is determined not to be within the range, the speech signal decoding apparatus outputs as a pitch period a predetermined value within the range.
Patent CA-2069119-C (CA)
Title: Data processing system
Inventor: MURPHY ALAN STANLEY
IPC: G06F9/46
Filed: 1992-05-21
Granted: 1996-12-24
Abstract: A data processing system is described which defines a plurality of logical workspaces for performing tasks in response to operations performed by a system user and provides communication between two or more of the workspaces. When a user in a first workspace selects a screen object ('door') corresponding to a second workspace, visual, audio and data communication are initiated between the first user and the second workspace according to predefined access privileges associated with the first user. In a preferred embodiment these access privileges are predefined by the owner of the workspace.
Patent CA-2070619-C (CA)
Title: Sample collection and inlet systems for gas chromatography apparatus
Inventor: SACKS RICHARD D
IPC: G01N30/16
Filed: 1992-06-05
Granted: 1997-03-18
Abstract: A gas chromatography system of the type incorporating a thermal focusing chamber for introducing a sample into a column for separation and analysis.  The system of the present invention provides benefits in terms of reducing memory effect of one analysis being influenced by prior experiments, a reduction in system dead volume which leads to broadening of peaks produced on the chromatogram and artifacts caused by sample decomposition. These advantages are achieved principally through a novel fluid circuit in which the sample is trapped onto the column by trapping it at the end of the thermal focusing chamber closest to the column.  This feature has the effect of eliminating the necessity of the sample residing in the heated focusing chamber for a period giving rise to sample decomposition.  This system further avoids the necessity of passing the inlet flow through mechanical valves which also contributes to memory effect.  This system further has the benefit of enabling sampling of sources at various pressures including ambient pressure as an air quality sensing probe.  An alternative embodiment is a simplified system for  enabling  ambient  pressure  source  monitoring  without mechanical valves in the sample flow path.
Patent CA-2070857-C (CA)
Inventor: GAUTHERON MICHEL
IPC: F16D3/76
Filed: 1992-06-09
Granted: 2003-12-02
Abstract: Process for shaping, after moulding, at least one of the ends of the rigid inner bush (1) of a flexible joint having coaxial rings, characterised in that an annular allowance of material (overthickness) (6) is formed by local plastic deformation (creep) between half-dies which impose the external shape and by rivet die (snap) rocking about an oblique axis, of small-angle taper trajectory about the axis of the part, and in that the reaction is exerted on the opposite plane face of the rigid inner bush (1), without substantially stressing the elastomeric compound of the flexible sleeve (3), one of the plane end faces (5) of the said rigid inner bush (1) being capable of including at least one projecting element such as a cylindrical rib (18) or radial splines (fluting) (19). 
<??>Flexible joints produced according to this process. 
<IMAGE>
Patent CA-2073203-C (CA)
Title: Power tong for making up or breaking out threaded joints of pipe
Inventor: PENISSON DENNIS JOEL
IPC: E21B19/16
Filed: 1992-07-06
Granted: 1995-09-26
Abstract: There are disclosed several embodiments of a power tong for making up or breaking out threaded joints of pipe wherein a head is rotatably mounted on a housing which is held against rotation and both the head and housing have slots adapted to be aligned to permit the tong to be moved onto or removed from a pipe joint.  One or more belts are mounted on the head for movement into and out of positions gripping a substantial length of the circumference of the pipe in order to rotate the pipe with the head.  The belt or belts are so moved by a hydraulic cylinder which permits the amount of gripping force to be adjusted.
Patent CA-2073570-C (CA)
Title: Optical connector
Inventor: UEDA TETSUJI
IPC: G02B6/38
Filed: 1992-07-10
Granted: 1998-08-18
Abstract: Disclosed is an optical connector, comprising:  a glass ferrule having a center bore into which an optical fiber is inserted to be fixed; wherein the glass ferrule is strengthened in mechanical strength by ion-exchange.  The optical connector may be used in optical communication systems, optically applied equipments, etc.
Patent CA-2074657-C (CA)
Inventor: CAILLE GERARD
IPC: H01Q21/08
Filed: 1992-07-24
Granted: 1995-12-19
Abstract: L'antenne-réseau pour ondes hyperfréquences est caractérisée en ce que la largeur des sources du réseau augmente progressivement du centre du réseau vers ses extrémités. Par ailleurs, ces sources sont disposées, les unes par rapport aux autres, de façon que ce réseau ne présente pas de trous d'illumination.
Patent CA-2078993-C (CA)
Title: Two-stage pneumatic conveying process for rubber cooling
Inventor: VERO GREGORY M
IPC: B29B9/00
Filed: 1991-04-15
Granted: 1994-10-18
Abstract: A process for cooling rubber crumb wherein the rubber crumb is presented for cooling to a first stage pneumatic conveyor containing a hot wet first stage air stream. The rubber crumb is cooled in the first stage pneumatic conveyor to a first temperature, whereupon the cooled rubber crumb is separated from the first stage air stream and transferred to a second stage air stream of cool dry air. A second stage pneumatic conveyor transports the rubber crumb in the second stage air stream for additional cooling.
Patent CA-2081140-C (CA)
Title: Digital video compression method and apparatus
Inventor: RUTHERFOORD CHARLES THOMAS
IPC: G06T9/00
Filed: 1992-10-22
Granted: 1999-01-19
Abstract: This invention relates to the electronic storage and retrieval of sequences of digital video images, such as occur  in  digital  motion  video  and  frame  animation computer applications.   The method of the invention is a differential frame compression method in which a sequence of a plurality of video images each to be displayed in a predetermined array of pixels arranged in a succession of lines  are  provided;   a  first  digital  signal  which represents a first video image in the sequence  to be displayed is derived to have  a bit-mask data portion defining an array of pixels and a pixel data portion defining pixel  values  for pixels within  the  bit-mask array and to be displayed;  a second digital signal which represents a second video image in the sequence to be displayed and which is a successor to the first image is derived  similarly to  the  first;  the  first and  second digital signals are compared to distinguish pixel data which is unchanged in the succession from the first video image  to the  second video  image;   the  second digital signal  is  compressed  by  deriving  the  bit-mask  data portion thereof to represent which pixels are changed in the succession from the first video image to the second video  image  and  by  deriving  the  pixel  data  portion thereof  to  represent  only  those  pixels  which  are represented in the bit-mask portion as being changed; and the series of digital signals are stored.
Patent CA-2084574-C (CA)
Title: Synchronization techniques for multimedia data streams
Inventor: KOVAL MICHAEL J
IPC: G06F17/30
Filed: 1992-12-04
Granted: 1996-10-22
Abstract: A personal computer based, multimedia, data processing system includes a software solution to the problem of synchronizing two or more data streams which output data to two or more multimedia output devices. One stream is a master and each other stream is a slave. The master stream generates sync pulses that can be handled in two different synchronization methods, master-slave independent synchronization or master-driven slave synchronization. Sync pulses are generated with a predetermined granularity, and synchronization is achieved when a slave stream is out of tolerance. Adaptive resynchronization may be used to speed up or slow down a slave stream.
Patent CA-2084862-C (CA)
Title: Gas turbine steam addition
Inventor: DRNEVICH RAYMOND FRANCIS
IPC: F02C3/30
Filed: 1992-12-08
Granted: 1995-07-11
Abstract: The output of gas turbines is enhanced by gas moisturization using a  water contact tower and a pumped water recirculation loop with low pressure steam addition thereto.
Patent CA-2090590-C (CA)
Title: Roller chain idler replacement
Inventor: ROGUS THOMAS E
IPC: F16H7/08
Filed: 1993-02-26
Granted: 1998-05-05
Abstract: A tightener roller 40 replace idler sprockets in roller chain 20 applications to decrease noise and reduce wear on the system components. The roller chain 20 wears parallel alignment grooves 50, 52 in the resilient material 44 of the tightener 40.
Patent CA-2091746-C (CA)
Title: Antifoams for solid crop protection agents
Inventor: KOCUR JEAN
IPC: C09K3/00
Filed: 1993-03-16
Granted: 2003-11-25
Abstract: The invention relates to solid active substance formula-tions which contain wetting agents in combination with a surfactant (antifoam) from the group comprising per-fluoroalkylphosphinic acid/perfluoroalkylphosphonic acids or their salts. The invention also relates to the use of these formulations, in particular in the preparation of spray slurries.
Patent CA-2099524-C (CA)
Title: Procede de laminage de film de lithium mince par decollement controle
Inventor: BOUCHARD PATRICK
IPC: B21B27/00
Filed: 1993-07-02
Granted: 1999-05-18
Abstract: On produit un film de lithium susceptible notamment de constituer l'anode d'un accumulateur à électrolyte polymère en effectuant le laminage dlun feuillard de lithium entre deux rouleaux de travail. A la sortie, le film reste accolé sur l'un des rouleaux jusqu'à un point donné de la circonférence de ce dernier formant un angle d'environ 90.degree. avec le point de rencontre entre les deux rouleaux. On exerce ensuite une tension suffisante mais en tout cas inférieure à la limite élastique du lithium, en enroulant le film pour le décoller de la surface du rouleau et habituellement pour que le point donné se déplace en une position intermédiaire entre 90.degree. et le point de rencontre, par exemple environ 45.degree.. Le produit obtenu peut aussi servir à chaque fois qu'on a besoin dlun film de lithium d'une épaisseur notamment entre 10 et 100 .mu.m.
Patent CA-2099969-C (CA)
Title: Swivel bunked double trailers for containers
Inventor: KLEYSEN HUBERT T
IPC: B62D53/00
Filed: 1993-07-06
Granted: 1998-12-29
Abstract: A double lead-pup trailer assembly for container transport has swivel bunks enabling the container to be carried on the articulated trailers.  The rear swivel bunk slides rotatably within a slot extending to the rear of the pup trailer allowing the container to be directly unloaded.  The coupling means between the trailers is adjustable between a highway articulated driving relationship, and a backing up aligned relationship.  One advantage is the gross vehicle weight and payload are improved.  Another advantage is that the container more closely tracks the tractor and trailer wheels on turns, thus providing more manoeuvrability and safety.
Patent CA-2107484-C (CA)
Title: New arylalkyl(thio)amides, their preparation process and pharmaceutical compositions containing them
Inventor: LANGLOIS MICHEL
IPC: A61P37/00
Filed: 1993-10-01
Granted: 2000-09-19
Abstract: Compounds of formula (I): <IMAGE>  in which   - A represents a -CH2-CH2- chain which is unsubstituted or substituted by a lower alkyl,   - R1 represents a hydrogen atom or a lower alkyl,   - R2 represents a hydrogen atom, a halogen atom or a lower alkyl,   - R5 represents a hydrogen atom or a lower alkyl,   - R6 represents a group <IMAGE>  in which X represents a sulphur or oxygen atom.   The compounds of the invention had a remarkable activity on the melatoninergic system. They are therefore candidates for the treatment of disorders of the melatoninergic system.
Patent CA-2109140-C (CA)
Title: Pneumatic windshield wiper
Inventor: DOLEGOWSKI ARTHUR R
IPC: B60S1/10
Filed: 1993-10-25
Granted: 1995-04-25
Abstract: A pneumatic windshield wiper includes a compressed air motor provided with a piston which mounts a pair of actuator vanes one of which functions with a fixed electric sensor on the motor housing to establish the "park" position of the wiper blade.  The other sensor actuator vane is adjustable along the length of the piston rod and functions with the sensor to establish the extended, adjustable position of the wiper blade.  The sensor is included in an electronic circuit which controls operation of an electric solenoid valve and hence delivery of compressed air to the wiper motor.
Patent CA-2109556-C (CA)
Title: Polymer-modified polyol dispersions and process for production and use thereof
Inventor: VAN VEEN KASPER J
IPC: C08L71/02
Filed: 1993-11-19
Granted: 1998-05-05
Abstract: A polymer-modified polyol dispersion comprises a polyaddition product dispersed in a polyol. The polyaddition product is present in an amount of from about 25 to about 70 percent by weight based on the total weight of the polyaddition product and the polyol. The dispersion has a viscosity in the range of from about 4,000 to about 50,000 mPa~s, the viscosity remaining substantially the same after production of the dispersion. A process for producing the polymer-modified polyol dispersion is also disclosed together with a process for using the dispersion to produce a polyurethane foam.
Patent CA-2112469-C (CA)
Title: Systeme ameliore de diffusion d'erreur
Inventor: BOWERS HARRY
IPC: H04N1/405
Filed: 1992-05-05
Granted: 2001-02-27
Abstract: Pour les zones lumineuses ou sombres des images, les termes d'erreur (52) diffusés aux pixels voisins renferment des composantes qui sont périodiques par rapport à une longueur d'onde qui est fonction d'un degré de densité de pixels à partir duquel les termes d'erreur sont diffusés. Il est possible, de cette façon, de réduire ou d'éclairer des artefacts à motifs dans les zones claires ou les zones sombres d'une image.
Patent CA-2115649-C (CA)
Title: Hydrostatic axial piston motor for fitting in the hub of a driven wheel
Inventor: BECK JOSEF
IPC: B60K17/14
Filed: 1992-07-16
Granted: 2003-02-11
Abstract: The invention relates to an axial piston motor of adjustable swept volume for installation in a wheel hub, having a motor housing which is open on one side and is closed by means of a connection block, an output shaft rotatably mounted in the housing and connection block, an adjusting device for adjusting the swept volume, a step-down gear unit driven by the output shaft and having a driving toothed wheel for the drive of the wheel hub, and a brake associated with the output shaft on the connection block. For the purpose of reducing the outlay in terms of construction; with comparatively compact dimensions, and for greater ease of external access to the adjusting device, the step-down gear unit (13) is arranged inside the motor housing (1, 3) with two-sided mounting of the giving toothed wheel (47) and the connection block (5) is set back radially with respect to the motor housing (1) and the adjusting device (28, 29, 30) is arranged so as to be freely externally accessible in the region (23) of the motor housing (1, 2) that is free of covering.
Patent CA-2118273-C (CA)
Title: Method and apparatus for dynamic channel allocation for wireless communication
Inventor: CHAO PI-HUI
IPC: H04W16/10
Filed: 1994-10-17
Granted: 2000-04-25
Abstract: The present invention concerns the efficient use of the radio spectrum in wireless communications. Channel occupancy data and channel availability data concerning a specific base station and its neighbors are used to assign frequency channels to mobile units and/or base stations.      The channel occupancy and availability data may be located at a base station or at a mobile switching center.      Channels are preferably assigned as channel pairs.
Patent CA-2124710-C (CA)
Inventor: SHMULOVICH JOSEPH
IPC: H01S3/16
Filed: 1994-05-31
Granted: 1999-02-16
Abstract: Plural planar optical devices are simultaneously pumped by a single pumping source. Various arrangements for accomplishing such pumping are disclosed. By utilizing these arrangements, the topology and routing of integrated arrays including optical devices are simplified.
Patent CA-2129102-C (CA)
Title: Feedback level estimator between loudspeaker and microphone
Inventor: CHU PETER L
IPC: H04R3/02
Filed: 1993-01-08
Granted: 1999-09-14
Abstract: An improved echo cancelling device (18) for reducing the effects of acoustic feedback between a loudspeaker and microphone in a communication system. The device includes an adjustable filter (50) for receiving a loudspeaker signal and generating in response thereto an echo estimation signal. The device subtracts (54) the echo estimation signal from the microphone signal to produce an echo corrected microphone signal. During periods of time when the microphone signal is substantially derived from acoustic feedback between the loudspeaker and the microphone, the device adjusts (58) transfer characteristics of the filter (52) to reduce the echo corrected microphone signal. The improvement includes estimating from the adjusted transfer characteristics an energy transfer ratio representative of the ratio of the energy of the microphone signal to the energy of the loudspeaker signal. The device compares the microphone signal to the energy transfer ratio multiplied by the loudspeaker signal to identify periods of the time when the microphone signal is substantially derived from acoustic feedback between the loudspeaker and the microphone.
Patent CA-2133874-C (CA)
Inventor: MASON CHRISTOPHER ALLEN
IPC: G06F17/24
Filed: 1994-10-07
Granted: 2003-08-19
Abstract: A method and system for automatic formatting of user selected text in a word processing system. A number of format options are displayed to the user and a text format selection is then obtained from the user for a selected format option. An identifier identifying the selected text format is stored in a text format data structure. One or more portions of existing text are thereafter selected by the user. For each selected portion of existing text, the selected portion is formatted with the text format identified by the identifier stored in the data structure. These steps are repeated until canceled by the user or until the user enters new text. In a preferred embodiment, the word processing system provides a conventional mode for performing conventional text formatting in which a text format is specified only after a single portion of existing text is selected by the user to which to apply the specified text format. The word processing system also provides an automatic formatting mode for automatically formatting any number of selected portions of text with a selected text format, as described above. By selecting a text format without first selecting a portion of existing text to which to apply the selected text format, the user places the word processing system in automatic formatting mode. Canceling the selected text format or entering new text converts the word processing system back to the conventional mode.
Patent CA-2134667-C (CA)
Title: In vitro test for helicobacter pylori
Inventor: WITT CAMPBELL
IPC: C12N1/20
Filed: 1993-04-29
Granted: 1997-11-11
Abstract: Contemporary infection by Helicobacter pylori in a human or other mammal can be detected by detecting H. pylori-specific  IgG  antibody  in  saliva,  or  other  mucous secretion, with an antigen preparation from H. pylori. Diagnosis depends on detection of the antigen-antibody complex.   For   improved   reliability,   the   antigen preparation comprises H. pylori-derived components of about 265 kDa and about 340 kDa and is substantially free of an H. pylori-derived component of about 440 kDa.  The antigen preparation may be  immobilised onto  a  solid support such as a nitrocellulose strip.
Patent CA-2137302-C (CA)
Inventor: SHINJO HIROSHI
IPC: B21D28/34
Filed: 1994-12-05
Granted: 1999-06-29
Abstract: An apparatus makes self-piercing nuts from blanks (11) each having a cylindrical pilot portion (13) which has  a raw unopened and unthreaded bore (12) and an end surface serving as a punch.  The pilot portion  surrounded by a rim (14) extending along a periphery a nut body, and an annular groove (15) is present between the pilot (13) and the rim.    The apparatus has a punching die which has a boring punch (33) and a first cylindrical insert (35) fitted on the punch serving to open the bore (12).    The boring punch has at its basal portion a tapered annular wall (34), and the cylindrical insert (35) having at its end surface an annular lug (36) capable fitting in the annular groove.     The tapered wall (34) radially expands an end of the pilot portion, so that its peripheral wall is forcibly slanted in a radial direction and an annular edge (13a) of the peripheral wall is stopped by an inner periphery of the annular lug (36).    Due to this feature, the apparatus can mass-produce the self-piercing nut of an accurate dimension which can smoothly punch an opening trough a metal plate, and  an invariable and sufficient clinching force is ensured to the self-piercing nut.