baber/WOPTO huggingface dataset:
Patent CA-2005066-C (CA)
Inventor: RICE ARTHUR WILLIAM
IPC: C01B13/02
Filed: 1989-12-11
Granted: 1997-09-23
Abstract: Nitrogen gas of high purity is produced from compressed air by contacting the air with a first gas  membrane separator permitting oxygen to permeate therethrough selectively while restraining the passage of nitrogen.  The nonpermeant gas is then brought into contact with a second gas membrane separator of similar construction.  The use of the serially arranged separators provides nitrogen gas with very low levels of oxygen.
Patent CA-2005614-C (CA)
Inventor: HAYASHI KATSUHIKO
IPC: G06F9/40
Filed: 1989-12-15
Granted: 1994-11-01
Abstract: In a facsimile device, an application program to perform "concurrent" transmission, multicopy, etc., is divided beforehand into a plurality of phases each being allocated a phase value for identifying purposes.  A phase value corresponding to a predetermined phase such as the processing "wait for an operation" which is to be executed at the beginning of the application program is registered in a non-volatile memory.  The following processes are sequentially repeated to execute the appropriate application program:          (a)       A phase of the application program to be executed is sepcified in accordance with a phase value registered in the non-volatile memory:          (b)       The program allocated to the specified phase is executed: and (c)       The phase value registered in the non-volatile memory is updated with the phase value of a phase which the program to be executed next is allocated, in response to the ending of the program to be executed.  In any case, when the facsimile device is started up, the process (a) is started.  Thus, even if the application operation is interrupted due to trouble such as power stoppage, the application operation is smoothly continued smoothly when the facsimile is recovered.
Patent CA-2005925-C (CA)
Inventor: DIETLIN FRANCOIS
IPC: A61K31/00
Filed: 1989-12-19
Granted: 2002-03-26
Abstract: L'invention se rapporte au domaine de la chimie thérapeutique.   Elle a pour objet des compositions pharmaceutiques assurant la regénération des lymphocytes T4 au l'augmentation de leur nombre chez des sujets présentant un syndrome immuno-déficitaire qui renferment, à titre de principe actif, la 9-amino 1,2,3,4-Tétrahydro acridine ou un de ses sels ou un de ses précurseurs biologiques.   L'invention concerne aussi, à titre de produits nouveaux, les précurseurs biologiques de la 9-amino 1,2,3,4-Tétrahydro acridine.
Patent CA-2008624-C (CA)
Title: Tri-select hearing assist
Inventor: MACKEY JAMES T
IPC: H04R25/00
Filed: 1990-01-26
Granted: 1994-05-24
Abstract: A plug-in control  box to TV or radio (2-pole, 3-position rotary switch, non-shorting) is capable of providing sound from TV or radio speakers, earphones alone, or speakers and earphones together.  In the speaker position, the sound level is adjusted for general surroundings.  In the earphone position, the TV/radio speaker sound is omitted.  If necessary, the earphone level can be further adjusted to suit the earphone listener.          In speaker and earphone position, the TV/radio sound can be adjusted if necessary, and the earphone sound separately.          These settings are for normal hearing.     The big feature of this invention is provision for the hearing impaired.     An amplifier, built into the control box, provides the mixture of TV/radio sound and ambient sound, through a plug-in microphone.          Both sound levels can be adjusted separately, to suit the hearing impaired (i.e. ambient sound, phone, doorbell, conversations, etc.) When using plug-in earphones to TV/radio, the speakers are cut off.  There is no external sound for those who wish to participate.          The hearing impaired are completely cut off from the outside world.  The purpose of this invention is to give the hearing impaired opportunity of enjoying TV/radio sound and ambient sound without disrupting other persons about.
Patent CA-2010482-C (CA)
Title: Process for the fabrication of devices; utilizing electrochemically generated gases
Inventor: CADET GARDY
IPC: H01L21/205
Filed: 1990-02-20
Granted: 1998-08-25
Abstract: Many devices, such as those based on III-V semiconductor materials, are producedutilizing gases such as arsine that require careful handling of compressed gas cylinders. This care has engendered a search for alternate approaches. It has been found that the use of electrochemically generated gases such as arsine yields anefficient, pure source of such gases without necessitating the storage of large gas quantities. Thus, a device fabrication procedure including in situ electrochemical generation of gases such as arsine is particularly useful.
Patent CA-2010752-C (CA)
Inventor: PALATCHY JOSEF
IPC: F16L17/04
Filed: 1990-02-22
Granted: 2000-05-09
Abstract: A circular pipe coupling for coupling aligned pipe ends is formed of arcuate segments arranged end to end. Each segment has outwardly extending lugs formed on its opposite ends, with the lugs on the adjacent segment ends being interconnected. One of each pair of interconnected lugs is formed with an integral hook, with a corresponding opening for receiving the hook formed on the opposite lug and providing an axle upon which the hook is engaged to form a hinge connection, except that one of the pairs of lugs is connected together by a manually releasable mechanical fastener, such as a bolt. One of the segments may be manually positioned upon the adjacent pipe ends to be coupled, with one or more segments freely dangling downwardly therefrom under the force of gravity, which sections may be manually pivoted upwardly for encircling the pipes and for applying the releasable mechanical fastener.
Patent CA-2011080-C (CA)
Title: Tamper proof hanger with improved ratchet arm
Inventor: MAUFFETTE CLAUDE
IPC: A47G25/48
Filed: 1990-02-28
Granted: 1999-04-27
Abstract: A key-operable combination for use in a tamper-proof garment  hanger, which combination is very simple yet efficient in structure and is capable of cooperation with a rack forming part of a garment gripping member for selectively holding the gripping member into and out of locking position.  This key-operable combination comprises a cylinder lock comprising an outer lock cylinder solid with the larger casing and a key-operable rotary lock barrel mounted within the outer cylinder.  An operating member is rotatably mounted on the outer lock cylinder, within the casing,  this operating member and the lock barrel being coupled together for allowing rotation of the operating member when the lock barrel is key-operated into rotation. A pawl radially projects from the operating member.  This pawl has a free end operatively engaging the rack of the gripping member.  Finally, a resilient lever is provided which radially projects from the rotary operating member and has a free end which is resiliently applied against the inner wall of the casing to press the pawl against the rack.
Patent CA-2013831-C (CA)
Inventor: ALSCH GOTTFRIED
IPC: H01H19/11
Filed: 1990-04-04
Granted: 1995-06-13
Abstract: In a snap locking mechanism for rotary switches an operating shaft (4) operable by a switch handle can be rotated against the force of an energy-storage mechanism and each lock-in position is occupied with at least partial release of the energy-storage mechanism.  The energy-storage mechanism is formed by axially acting compression springs (8) and acts on a driver ring (6) exhibiting slopes in the peripheral direction which interacts with another driver ring (13), couplable with the operating shaft, exhibiting a corresponding counterprofile with slopes.  A coupling for dragged slaving (28, 29) is provided between the two driver rings (6, 13).  Handle-side driver ring (6) carries stops (11) on its front facing away from these slopes, which interact with counterstops (12), integral with the housing, when they reach the snap position of the locking mechanism.    Two annular links (14, 15) placed concentrically to the slopes of driver rings (6,13), each of which is operative for one direction of rotation each and which exhibit on their front sawteeth inclined in the opposite direction to one another running in the peripheral direction and which interact respectively with a corresponding counterprofile on handle-side driver ring (6) or in housing (2) (Fig. 1).
Patent CA-2019594-C (CA)
Title: Communication system
Inventor: VAN ENGELSHOVEN ROBERTUS JOSEP
IPC: H04L12/56
Filed: 1990-06-22
Granted: 1998-08-18
Abstract: This system includes a main station (MS) and a plurality of substations (SX/SZ) which include each a transceiver and are all connected in parallel to first (UL) and second (DL) unidirectional links on which recurrent first and second cells of fixed length are transmitted in opposite direction.  Each of these cells contains a plurality of signalling channels smaller than the number of substations.          When a substation has to transmit data it starts an allocation procedure wherein the substation cooperates with the main station and by which a channel is allocated to it.  Afterwards prior to transmitting the data the substation transmits a request signal in the allocated channel and starts transmission after having received from the main station a grant signal in the homologous signalling channel of a second cell.  De-allocation of a channel occurs as soon as the latter is no longer needed.
Patent CA-2023844-C (CA)
Title: Test bench for monitoring fatigue in cylinder heads
Inventor: COFFLARD DANIEL
IPC: G01N3/32
Filed: 1990-08-28
Granted: 1995-06-13
Abstract: This invention relates to a fatigue test bench for engine cylinder heads, particularly for motor vehicles. This bench comprises as main elements: a device for fixing the test cylinder head on an intermediate connecting member, connecting it to the means of establishing hydraulic pressure in the combustion chambers and in the circulating of the heat bearing fluids; a pressure generating device which simulates as faithfully as possible and in a reproducible manner the pressure cycle as a function of time in the combustion chambers; and a system of circulating heat bearing fluids through the water chambers of the cylinder head with two differnt circuits, one at ambient temperature and the other at a higher temperature used alternately by means of a regulable timing device which controls the operation of one or other of the circuits. The apparatus according to the invention makes it possible in a limited time, generally less than half the time required for tests on an engine bench: for a given type of cylinder head, to define the most suitable alloy or alloys; to develop new alloy compositions which are more suitable for the increasingly more severe demands encountered in the field of motor vehicle cylinder heads; to rapidly test new forms of cylinder heads; and to draw up comparative data of resistance to mechanical fatigue.
Patent CA-2025544-C (CA)
Title: Processing of tobacco leaves
Inventor: KLAMMER BARBARA C
IPC: A24B3/00
Filed: 1990-09-17
Granted: 1995-07-18
Abstract: Whole  tobacco  leaf is fed to a milling  machine  such that there is produced a mixture of lamina flakes and intact stem  lengths.   The  lamina fraction,  with  little  or  no further  particle size reduction can be fed to a  cigarette making  machine.   The  stem fraction can  be  discarded  or processed according to conventional methods.
Patent CA-2030369-C (CA)
Inventor: MCNAMARA JAMES D
IPC: B01J20/20
Filed: 1990-11-20
Granted: 2002-02-05
Abstract: Impregnated carbon adsorbents for the removal of mercury from liquid hydrocarbons are used in a variety of applications. The activated carbon impregnated adsorbents in the present invention remain effective in removing mercury. Generally, these activated carbons are comprised of an activated carbon adsorbent impregnated with a composition containing metal halide or other reducing halide, supplemented according to the desired characteristics with other elements. The formulation of the impregnants in the present invention can be varied to adjust the performance characteristics so as to meet the desired mercury removal performance criteria, to achieve enhanced removal of organic bound mercury from liquid hydrocarbon, and to have other advantages useful in a variety of applications. These impregnated carbon adsorbents possess desirable qualities regarding their ability to remove even trace levels of mercury from liquid hydrocarbon without a leaching effect of the impregnants used.
Patent CA-2031427-C (CA)
Inventor: HEGNER FRANK
IPC: H01L29/84
Filed: 1990-12-04
Granted: 1996-07-30
Abstract: The substrate (12) and/or the diaphragm (11) of the pros-sure sensor (10) are made of ceramic, glass, or a single-crystal material. The side of the diaphragm (11) facing the substrate (12) is covered with a layer of silicon carbide, niobium, or tantalum which, in turn, is covered with a protective layer (21) and serves as one capacitor electrode (14). The side of the substrate (12) facing the diaphragm (11) is covered with at least one addi-tional layer of any one of said materials which, in turn, is covered with an additional protective layer (22) and serves as the second etc. capacitor electrode (15). Sub-strate (12) and diaphragm (11) are soldered together by a formed part of active solder (20) which also serves as a spacer.            This pressure sensor can be manufactured in a single soldering step. The maximum load capacity of the dia-phragm is determined not by the strength of the joint, but only by the strength of the diaphragm material. The pressure sensor can be used at higher temperatures than pressure sensors with glass-frit joints.
Patent CA-2045446-C (CA)
Inventor: ZLOBIN MIKHAIL NIKOLAEVICH
IPC: B03D1/14
Filed: 1991-06-25
Granted: 1997-02-25
Abstract: A flotation machine comprises a cylindrical chamber having a tapered bottom to which there are secured a pipe for feeding a flotation pulp carrying mineral particles of fine fraction and a pipe  for discharging  gangue. Secured  to  the  walls  of  the chamber is a trough for collecting froth concentrate, and  a  group  of  pulp  aerators,  whereas  positioned axially inside  the  chamber  is  a  group  of  tapered shells  spaced equidistantly  from one  another  with bases of larger diameter thereof facing the top part of  the  chamber  and  resting  substantially  at  one tapered surface.  Positioned over  the  chamber  is  a means  for  feeding  mineral  particles  of  coarse fraction in the form of a hydrocyclone, a cylindrical casing  of  this  hydrocyclone  having  a  pipe  for evacuating the  liquid phase of the  flotation pulp positioned tangentially and communicating with  the pipe for feeding the flotation pulp carrying mineral particles of fine fraction.
Patent CA-2049898-C (CA)
Title: Method for manufacturing a silica glass base material
Inventor: SATOH TSUGUO
IPC: C03B37/016
Filed: 1991-08-26
Granted: 1996-06-25
Abstract: A silica-based glass rod is inserted into a space portion of a mold.  Then, a slurry, which is obtained by dispersing a silica glass powder material in pure water, is poured into a molding space between the glass rod and the inner surface of the mold, whereby a porous glass shaped body is formed around the glass rod.  Drying this shaped body results in a silica glass base material which includes the glass rod and the porous glass shaped body surrounding the same.
Patent CA-2051986-C (CA)
Title: Programmable emergency signalling device and system
Inventor: BADER JOSEPH F
IPC: G08B1/00
Filed: 1991-09-20
Granted: 1998-06-30
Abstract: An emergency signalling system is disclosed that incorporates an emergency signalling device including a light source and reflector mounted for relative rotation in incremental steps in either clockwise or counterclockwise directions.  A programmable control unit of the signalling system provides digital signals to a drive source for controlling the speed and direction of the relative rotation.  In response to the digital signals, the signalling device executes a variety of different visual patterns.  The signalling system can be programmed from a keyboard preferably integrated into a control head mounted to a dashboard area of a vehicle incorporating the emergency signalling system.  Virtually any type of visual warning pattern based on the relative rotation of a light source and reflector can be executed by the signalling device if properly programmed.
Patent CA-2053134-C (CA)
Inventor: BRAUN EUGENE R
IPC: F16H61/70
Filed: 1991-10-10
Granted: 1995-03-21
Abstract: A control (68) for controlling the input section (12) of a manually shifted compound synchronized transmission (10) of the type comprising the splitter type input section (12) connected in series with a manually shifted synchronized multi-speed main transmission section (14) is provided.  The control is effective upon sensing disengagement of the master clutch (20) and nonengagement of the main transmission section (14) to cause the input section (12) to be shifted to and maintained in the not engaged (N) position thereof and thereafter to cause the input section to be shifted to the preselected ratio thereof (H or L).  The control is also effective with the main transmission section in the disengaged position upon engagement of the master clutch to momentarily cause the input section to be shifted to one of the engaged ratios thereof allowing the synchronized jaw clutches of the main transmission section to be engaged in start-from-stop operations.
Patent CA-2060910-C (CA)
Title: Protective boot structure
Inventor: LAMONT WILLIAM D
IPC: A61F5/01
Filed: 1992-02-10
Granted: 2002-12-10
Abstract: A protective boot for patients with arterial disease.      The boot includes a separate fluid-containing cushion which can be attached in a variety of positions on or in the boot to provide support for the patient's foot and leg when bed-ridden.
Patent CA-2065376-C (CA)
Inventor: ARSENICH SVYATOSLAV IVANOVICH
IPC: H04N5/74
Filed: 1991-06-28
Granted: 1999-06-08
Abstract: Un projecteur comprend une plaque à fibres optiques (1) dont les faces terminales d'entrée (2) des guides de lumière (3) sont situées dans le plan d'image originale (a-a), ainsi qu'une lentille de projection (8) dans le champ optique duquel se trouvent les faces terminales de sortie (9) des guides de lumière (3) de la plaque à fibres optiques (1). Sur le chemin du faisceau de lumière de chaque guide de lumière (3) de la plaque à fibres optiques (1) se trouve un système optique (10) destiné à concentrer les faisceaux de lumière en un flux de lumière et destiné à orienter ledit flux de lumière dans l'oculaire d'entrée (11) de la lentille de projection (8). Le système optique (10) comprend un focon (12), un lentille convergente (13) ainsi qu'une lentille de réfraction (14), ces éléments étant montés successivement le long du chemin du faisceau de lumière dans le guide de lumière (3). L'axe optique (O4-O4) de la lentille convergente coïncide avec l'axe optique (O10O1) du guide de lumière (3).
Patent CA-2065860-C (CA)
Title: Inhibiting transforming growth factor .beta. to prevent accumulation of extracellular matrix
Inventor: BORDER WAYNE A
IPC: C07K14/78
Filed: 1990-09-27
Granted: 2001-03-27
Abstract: The present invention provides a method for treating or arresting the progress of pathologies characterized by an accumulation of extracellular matrix components by providing an agent to suppress the activity of transforming growth factor .beta. (TGF-.beta.) a peptide growth factor which is anabolic and leads to fibrosis and angiogenesis. In one embodiment, such agent is anti-TGF-.beta. antibody. Pathologies which can be so treated include the various fibrotic diseases. The invention further provides a method for the diagnosis of pathologies, or incipient pathologies, which are characterized by the accumulation of extracellular matrix components in tissues by determining the levels of TGF-.beta. in the tissues, a high level being indicative of such pathologies.
Patent CA-2072234-C (CA)
Title: Intensity correction device
Inventor: OKUMURA NAOJI
IPC: G09G5/06
Filed: 1992-06-24
Granted: 1998-04-21
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.
Patent CA-2076179-C (CA)
Title: Process for preparing a toner resin, toner resin prepared thereby and toner composition containing particles of toner resin
Inventor: KOBAYASHI NOBUKI
IPC: C08F2/10
Filed: 1992-08-14
Granted: 1997-10-28
Abstract: A toner resin suitable for being used in toner compositions or developer compositions for electrostatic imaging is prepared by polymerization of styrene and butadiene in the presence of a mixture of n-dodecyl mercaptan and t-dodecyl mercaptan.  The toner resin has defined weight average and number average molecular weights and a defined polydispersity that provide an improved toner resin that can be attained without blending different copolymers while using conventional apparatus.  Additionally, the toner resin can exhibit a suitable melt index and glass transition temperature.
Patent CA-2079736-C (CA)
Inventor: GREENBERG LAWRENCE J
IPC: A63H3/52
Filed: 1992-10-02
Granted: 1997-03-25
Abstract: A utensil which has a feeding end and a hollow handle.  A holding element is displaceable within the hollow element relative to the feeding end between a revealing position, where an end of the holding element that is deco-rated with imitation food projects over the feeding end, and a hidden position, where the decorated end of the holding element is withdrawn and concealed within the hollow handle. A spring biases the holding element into the hidden position and a latch retains the holding element in the revealing position.  The holding element enters the revealing position during withdrawal of the utensil from a toy container and enters the hidden position during insertion of the feeding end into a doll's mouth.
Patent CA-2083115-C (CA)
Title: Utility truck body with option attachment components
Inventor: KALIS GEORGE JR
IPC: B60R11/06
Filed: 1992-11-17
Granted: 1995-05-09
Abstract: A truck body is disclosed for mounting on a standard truck frame. The body includes extruded attachment components which run the full length of the body. The attachment components have T-slots formed beneath their surfaces for permitting attachment of optional equipment to the truck body. The attachment components are designed to conform to the shape of the truck body in an aes-thetically pleasing manner.