baber/WOPTO huggingface dataset:
Patent CA-2066838-C (CA)
Title: High frequency printing mechanism
Inventor: IVRI YEHUDA
IPC: B41J2/175
Filed: 1992-04-22
Granted: 1997-02-04
Abstract: The present invention provides an ink-jet ejection device which is capable of ejection or ink (including hot melt ink) jet frequencies greater than 50,000 Hz.  A cantilevered beam of selected shape is mounted at its base to a piezoelectric element which oscillates the base.  The beam is shaped so that its moment of inertia is reduced toward its free end.  The element is activated by an oscillating electrical signal the frequency of which is equal to or close to a natural frequency of oscillation of the beam.  In the preferred embodiment herein a third or higher modal frequency is utilized.  Because of the structural configuration of the cantilevered beam and the selected frequency of oscillation thereof, the tip of the beam ocillates over an amplitude which is significantly greater than the oscillation amplitude of the base.  The beam is highly damped and made of low density material so that the tip amplitude is extremely responsive to variations in the base amplitude.  The tip of the beam is provided with an aperture which is preferably tapered in cross-section.  One opening of the tapered aperture is in fluid communication with a reservoir of ink and the other opening of the aperture is positioned at an appropriate distance from a recording medium such as paper towards which individual droplets of ink from the reservoir are to be propelled.  When the tip amplitude is above a predetermined threshold  the solid-fluid interaction between the tapered aperture and the ink causes a drop of ink to accelerate through the aperture and be ejected upon each excursion of the tip of the beam toward the printing media.
Patent CA-2069551-C (CA)
Title: Polymer coated powder heating and feeding system for a compacting press
Inventor: SMYTH DALE C JR
IPC: B30B11/00
Filed: 1992-05-26
Granted: 2002-01-01
Abstract: A system for heating and feeding polymer coated powder to a heated die cavity of a compacting press.      The system comprises at least one heated vertical pipe for heating the polymer coated powder and for delivering the polymer coated powder by gravity from source thereof to the entry end of at least one horizontally oriented auger conveyor. The at least one auger conveyor is heated and imparts heat to the individual powder particles through a mixing action.     The at least one auger conveyor delivers the polymer coated powder to the heated hopper of a shuttle assembly. The shuttle assembly is shiftable between a retracted position wherein the polymer coated powder is discharged from the shuttle hopper to a heated powder ring, to an extended position wherein the polymer coated powder is discharged from the powder ring to the heated die cavity of the compacting press. The system heats the individual particles of the polymer coated powder to a temperature just below the coagulation point thereof. The temperature of the polymer coated powder is rapidly increased to the "set" point by the combination of the heated die cavity and the energy imparted during the actual compacting stroke.
Patent CA-2070004-C (CA)
Title: Cloned glutamic acid decarboxylase
Inventor: TOBIN ALLAN J
IPC: C12N9/88
Filed: 1992-06-01
Granted: 2007-08-21
Abstract: Isolated polypeptides useful in ameliorating autoimmune disease.
Patent CA-2073533-C (CA)
Inventor: PENNETREAU PASCAL
IPC: C07C19/10
Filed: 1992-07-09
Granted: 2007-05-15
Abstract: L'invention concerne un procédé pour la préparation de 1-chloro-1,1,3,3,3-pentafluoropropane et de 1,1,1,3,3,3-hexa- fluoropropane par réaction en phase liquide de 1,1,1,3,3,3- hexachloropropane avec du fluorure d'hydrogène, en présence d'un catalyseur.
Patent CA-2076925-C (CA)
Inventor: SAKAI KUNIHIRO
IPC: G11B3/00
Filed: 1992-08-26
Granted: 1999-08-31
Abstract: An information processing apparatus for effecting recording of information on and/or reproduction of information from a recording medium is provided with a probe electrode, a cantilever piezo-electric member, a controller and a detector. The probe electrode is relatively displaced to the recording medium by the cantilever piezo-electric member. The controller applies a control signal to the cantilever piezo-electric member to control the cantilever piezo-electric member. The detector detects a minute signal obtained on the tunnel effect caused between the probe electrode and the recording medium. A switch element is further provided on the apparatus so as to electrically disconnect between the cantilever piezo-electric member and the controller during the minute signal being detected by the detector.
Patent CA-2077084-C (CA)
Title: Hole placement and fill system based on category selection
Inventor: REED JOHN D
IPC: H04B1/46
Filed: 1991-02-06
Granted: 1995-05-23
Abstract: A communication device (10) has a receiver (28) for receiving an audio signal, and an apparatus for producing a signal that is representative of the audio signal. A first analyzer (22) analyzes at least a portion of the representative signal to determine whether the portion of the representative signal belongs to a predetermined category. The communication device also includes a transmitter (20) that transmits a signal having an audio portion, with holes placed therein, and a first signalling information indi-cating whether the portion of the representative signal belongs to the predetermined category. A second analyzer (22) analyzes the portion of the representative signal to determine at what times to place holes in the audio signal.
Patent CA-2080758-C (CA)
Title: Manual seat back latch for vehicles and method of assembly
Inventor: PREMJI GULAM
IPC: B60N2/20
Filed: 1992-10-16
Granted: 1999-05-04
Abstract: A selectively latchable vehicle seat hinge assembly is disclosed and a method for assembling same. The selectively latchable vehicle seat hinge assembly has a first hinge arm and a first hinge plate each pivotally mounted about a common pivot for relative pivotal movement with respect to each other in first and second angular directions. A stop means mounted on the first hinge plate in interfering relation with the first hinge arm so as to limit the relative pivotal movement of the first hinge arm and the first hinge plate in the first angular direction. A latch plate is mounted on the first hinge plate. A latch pawl means pivotally mounted on the first hinge arm by way of an eccentrically operative, rotatably adjustable, backlash reduction means for pivotal movement about a separate pivot axis distinct from the common pivot axis and for selective latching contact with the latch plate, so as to limit the relative pivotal movement of the first hinge arm and the first hinge plate in a second angular direction. The backlash reduction means is mounted on the first hinge arm for rotation about a first pivot axis off-set and distinct from the common pivot axis to an optimized position, at which optimized position the backlash reduction means interacts with the latch pawl to move the separate pivot axis and the latch pawl means generally toward the latch plate, thereby to cause controlled reduction in the amount of backlash between the latch pawl means and the latch plate.
Patent CA-2080931-C (CA)
Inventor: KATZ AVISHAY
IPC: H01L21/603
Filed: 1992-10-20
Granted: 1994-08-23
Abstract: BONDING METHOD USING SOLDER COMPOSED OF MULTIPLE ALTERNATING GOLD AND TIN LAYERS Abstract A device such as a laser is bonded to a submount such as diamond by a process in which the submount is successively coated with an adhesion layer such as titanium, a barrier layer such as nickel, and a gold-tin solder-metallization composite layer formed by sequential deposition on the barrier layer a number (preferably greater than seven) of multiple alternating layers of gold and tin, the last layer being gold having a thickness that is equal to approximately one-half or less than thethickness of the (next-to-last) tin layer that it contacts immediately beneath it. The bonding is performed under applied heat that is sufficient to melt the solder-metallization composite layer. Prior to the bonding, (in addition to the submount) the device advantageously is coated with gold and optionally with a similar gold-tin solder-metallization composite layer, at least at locations where it comes in contact with the gold-tin solder-metallization composite layer.
Patent CA-2083974-C (CA)
Title: Asynchronous induction motor
Inventor: MORRILL GILES W
IPC: H02K1/08
Filed: 1992-11-27
Granted: 1997-11-18
Abstract: An asynchronous salient pole induction motor having a stator core with equally spaced teeth with inner ends having equal angular extent and defining a bore whereat a squirrel cage rotor is provided.  A main field winding includes serially connected coils embracing alternate stator teeth and connected across a single phase source of alternating current. An auxiliary field winding includes serially connected coils embracing consecutive teeth intermediate the teeth having the main winding coils thereon.  The auxiliary winding coils are phase displaced from the main winding coils.  Each of the teeth faces at their inner ends are shaped for increasing the air gaps on both sides of the center line longitudinal plane of each tooth thereby increasing the magnetic reluctance between each of the teeth and the rotor on both sides of the center line plane.  The laminations are first punched with circular shaped teeth inner ends and thereafter are punched to remove a cut-away portion from the teeth inner ends substantially near the tips of the teeth furthest away from the center line plane.
Patent CA-2084282-C (CA)
Title: Systeme du bromure de n.perfluorooctyle
Inventor: DRIVON GILLES
IPC: C07C19/08
Filed: 1992-12-01
Granted: 1997-02-04
Abstract: L'invention concerne la préparation en continu du bromure de n.perfluorooctyle. Le procédé selon l'invention consiste à faire réagir du brome et l'hydrogéno-1 heptadécafluoro n.octane en phase gazeuse, à une température comprise entre 450 et 520.degree.C, dans un rapport molaire Br2/C8F17H pouvant aller de 0,2 à 5 et avec un temps de contact compris entre 2 et 240 secondes. La sélectivité en C8F17Br est quasi-totale et l'on évite la formation de sousproduits toxiques comme le perfluoroisobutylène.
Patent CA-2089439-C (CA)
Title: 3,5-substituted benzoylguanidines, process for their preparation, their use as a medicament or diagnostic and medicament containing them
Inventor: LANG FLORIAN
IPC: C07C217/44
Filed: 1993-02-12
Granted: 2006-04-11
Abstract: Benzoylguanidines of the formula I   (see formula I) are described where R(1) is R(4)-SO m or R(5)R(6)N-SO2-, where R(4) and R(5) are alk(en)yl or -C n H2- R(7), and where R(7) is a cycloalkyl or phenyl, where R(5) also has the meaning of H, and R(6) is H or C1-C4-alkyl, R(2) is hydrogen, halogen, alkyl, O-(CH2)m C p F2p+11, -X-R(10), where X is O, S or NR(11), R(10) is H, (cyclo)alkyl-(methyl) or -C n H2n-R(12) where R(12) is phenyl, and R(3) is defined, inter alia, as R(1), and their pharmaceutically tolerable salts.      The compounds I are obtained by reaction of compounds of the formula II (see formula II).     with guanidine, in which L is a leaving group which can be easily nucleophilically substituted. Compounds I are outstandingly suitable as antiarrythmic pharmaceuticals having a cardioprotective component for infarct prophylaxis and infarct treatment and for the treatment of angina pectoris, where they also preventively inhibit or greatly reduce the pathophysiological processes during the formation of ischemically induced damage. They are moreover distinguished by strong inhibitory action on the proliferation of cells. They can therefore be used as antiatherosclerotics, agents against late-onset diabetic complications, cancers, and fibrotic diseases such as pulmonary fibrosis, fibrosis of the liver or fibrosis of the kidneys. They are effective inhibitors of the cellular sodium/proton antiporter (Na+/H+ exchanger).
Patent CA-2092588-C (CA)
Inventor: NEHRA NARENDER S
IPC: A01H4/00
Filed: 1993-03-26
Granted: 2008-07-08
Abstract: Whole scutella are isolated from immature zygotic embryos of cereal plants and cultivated, in the absence of the zygotic embryo axis, to produce somatic embryos, which in turn are converted into plantlets. The scutellar cells optionally are transformed with foreign DNA so that at least some of the resulting plantlets are transgenic or chimeric. The regeneration is much more rapid than with conventional methods.
Patent CA-2094464-C (CA)
Inventor: RANDOLPH VALERIE B
IPC: C07K14/005
Filed: 1993-04-20
Granted: 2005-08-23
Abstract: This invention provides cold adapted mutant RSV, specifically, mutant RSV of subgroup A and B. Nucleic acid molecules encoding the mutant RSV of this invention, and immunogenic polypeptides of these mutant RSV also are provided by this invention. Pharmaceutical compositions containing any of the above compositions are provided herein. These are especially useful as vaccines.      Further provided by this invention are methods of vaccinating a subject against RSV infection using the pharmaceutical compositions described herein.
Patent CA-2096409-C (CA)
Title: Retroviral protease inhibitors
Inventor: CLARE MICHAEL
IPC: A61K31/415
Filed: 1991-11-18
Granted: 2005-02-08
Abstract: Compounds represented by formula (1) wherein A represents radicals represented by formulae (A1, A2, A3) (values for the variables given herein), are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease.
Patent CA-2102928-C (CA)
Title: Video and audio signal multiplexing apparatus and separating apparatus
Inventor: NAKAMURA KAZUHIKO
IPC: H04N7/24
Filed: 1993-11-12
Granted: 1999-02-09
Abstract: When transmitting an audio signal by multiplexing in a synchronous period of a video signal, a buffer memory for time axis adjustment of the audio signal is controlled. The number of audio signal samples in the buffer memory is detected in every n fields (n being a positive integer) of video signal, and when it is different from a specific value, the read or write address of the buffer memory is preset, so that the number of audio signal samples in the buffer memory is kept constant at the moment of inspection in every n fields.  Besides, by inspecting the number of audio signal samples in the buffer memory in one field or more, a line providing a maximum or minimum value of the number of samples is stored, and thereafter the number of audio signal samples in the buffer memory in that line is kept constant, so that the buffer memory capacity may be utilized effectively.  As a method of recovering isochrony of the video and audio signals, at the transmission side, the delay time of the audio signal with respect to the video signal of a predetermined video line is kept constant, and, at the reception side, the video signal is delayed on the basis of the delay time of the audio signal with respect to the video signal in that line.
Patent CA-2116238-C (CA)
Title: Oral 1 .alpha.-hydroxyprevitamin d
Inventor: KNUTSON JOYCE C
IPC: A61P19/08
Filed: 1993-06-22
Granted: 2007-09-04
Abstract: Method of increasing activated vitamin D blood level by administering orally a 1.alpha.-hydroxyprevitamin D or a delayed and sustained release formulation of activated vitamin D or a combination thereof.  Both the previtamin D form and the delayed and sustained release activated vitamin D formulation increase vitamin D blood level without significant risk of hypercalcemia associated with other oral dosing of vitamin D forms.
Patent CA-2122141-C (CA)
Title: Methods for selectively expanding stem cells
Inventor: HEIMFELD SHELLY
IPC: G01N33/50
Filed: 1992-10-22
Granted: 2007-07-17
Abstract: Methods are provide for increasing the number of human hematopoietic precursor cells in vitro, comprising the general steps of (a) separating CD34-positive human hematopoietic precursor cells from CD34-negative cells present in a blood product; (b) inoculating the separated precursor cells at an initial density of between 1×10 3 cells/ml and 4× 10 6 cells/ml into a culture vessel containing a culture medium comprising a nutritive medium and hematopoietic growth factors effective for expansion of CD34-positive cells, with the proviso that said culture medium and culture vessel contain no stromal cells or stromal cell conditioned medium; and (c) culturing the precursor cells under conditions and for a time sufficient to increase the number of precursor cells relative to the number of precursor cells present after separation of hematopoietic cells from said blood product.
Patent CA-2125790-C (CA)
Inventor: HORVATH JOSEPH RICHARD
IPC: A61M16/06
Filed: 1994-06-14
Granted: 1999-09-21
Abstract: This invention is an eyewear frame which is formed with cannula grooves for receiving and accommodating an oxygen nasal cannula and which has plates for covering the cannula grooves so that, during use, the oxygen nasal cannula grooves are not visible. Preferably, the plates are interlocking plates mountable onto the main member of the eyewear frame.
Patent CA-2127125-C (CA)
Inventor: HUDSON DON
IPC: B65G47/30
Filed: 1993-11-05
Granted: 2004-09-21
Abstract: A belt transfer suction (30) for use in a right angle carton blank feeder. The belt transfer section (30) nips the leading edge of articles (8) leaving a feeding mechanism (12) and moves them to another feeding mechanism (24) operating at right angles to the first mechanism. The belt transfer section (30) moves the articles (8) along n diagonal path connecting the paths of movement on the other feeding mechanisms (12, 24). Articles (8) are moved by the belt transfer section (30) at a speed greater than the speeds of the other feeding mechanics (12, 24) adding to the ratio of the length of the diagonal path, considered as the hypotenuse of an imaginary right triangle, to the other legs of the triangle.
Patent CA-2128745-C (CA)
Inventor: TAKAHASHI YUZURU
IPC: H01M4/587
Filed: 1994-07-25
Granted: 1998-12-08
Abstract: A lithium secondary battery employing a non-aqueous media in which the carbonaceous anode material is prepared by the calcination of an organic compound obtained by reacting a precursor organic compound with a lithium salt.
Patent CA-2130653-C (CA)
Title: Conveyor belts with spiral overlay
Inventor: KUCHARSKI JOHN G
IPC: B65G17/00
Filed: 1994-08-22
Granted: 1998-07-07
Abstract: A spiral overlay having multiple variations, but generically, comprised of wire spirals intermeshed together by connecting rods extending across the conveyor in the transverse direction. Broadly, a first overlay is made up of spirals which may be tapered and afford pitch control by incorporating elongated loops in the spirals to limit the movement of the rods therein. The elongated loops also provide for collapsibility of the spirals relative to one another. A second overlay is made of integral or modular spirals such that the overlay includes upstanding spiral elements on its conveying surface to provide traction and separation of the articles being conveyed.
Patent CA-2130959-C (CA)
Inventor: ESLINGER DAVID M
IPC: E21B33/127
Filed: 1994-08-26
Granted: 1997-10-21
Abstract: An inflatable packer for use in a well includes a tubular mandrel, an inner elastomer sleeve on the mandrel, armor surrounding the inner sleeve, and an outer elastomer sleeve member that covers at least a portion of the armor. Stress rings are mounted on end portions of the armor are made from a metal plate which has been highly cold-worked in both its longitudinal and transverse directions to provide optimum strength characteristics against stresses imposed thereon when the packer is inflated.
Patent CA-2134279-C (CA)
Inventor: IGAUE TAKAMITSU
IPC: A61F13/15
Filed: 1994-10-25
Granted: 2006-11-07
Abstract: A method of preparing a two-layer sheet comprises spraying a heat fusible polymer on the reverse side of a fabric base material surface in a shape of a sheet during movement of the sheet fabric base material so as to form a second fabric base layer. A method of preparing liquid absorbing sheet material comprises spraying a fibrous body made of liquid conveyable material on the second fabric base layer and having the liquid conveyable material penetrate both tissue organization of the two-layers. It is possible to introduce liquid so as to permeate from a surface to a reverse side without deterioration of the liquid-permeability in thus obtained liquid absorbing sheet material because the fibrous body as a liquid conveyable material to the surface is scattered, extending from the reverse side in both tissue organization.      Moreover, the surface of the liquid absorbing sheet material maintains a dry state.
Patent CA-2139508-C (CA)
Title: Cordless telephone system
Inventor: BEESLEY GRAHAM EDGAR
IPC: H04W88/08
Filed: 1993-08-18
Granted: 2000-05-16
Abstract: A cordless telephone system of the type comprising a plurality of telephone handsets communicating by two-way radio with a base unit connected to the public telephone network. In the larger premises, normally a plurality of spaced base units are employed, so that the handsets can communicate with the most favourably-positioned base unit wherever they are on the premises. In the present invention, however, larger premises are covered by just a single base unit (I), including within it all the necessary transceivers (7) together with a plurality of transponders (3, 4, 5) which are connected to the base unit and each other by means of an RF cable. The transponders each have aerials by which they can communicate by two-way radio with the handsets. The transponders downconvert the RF frequency of the radio link to a lower IF frequency which is passed to the transceivers (7) via the cable (6). The transponders (3, 4, 5) can be distributed about the premises as needed to provide complete radio coverage.
Patent CA-2142530-C (CA)
Title: Topical compositions containing benzoyl peroxide and clindamycin and method of use thereof
Inventor: POPP KARL F
IPC: A61K8/60
Filed: 1995-02-14
Granted: 2006-12-05
Abstract: Dermatological conditions are treated by topically applying to the affected area an effective amount of a combination benzoyl peroxide and clindamycin composition.
Patent CA-2143486-C (CA)
Title: Method of improving the immune response
Inventor: SCHNEIDER HEINZ
IPC: A23L1/305
Filed: 1995-02-27
Granted: 2009-06-30
Abstract: The invention provides diet supplements for pre-operative treatment of patients due for surgery.
Patent CA-2145832-C (CA)
Inventor: SCHMIDT GLENN H
IPC: A63B53/04
Filed: 1995-03-29
Granted: 2003-12-09
Abstract: A golf club head having a body defining a heel, toe, top wall, bottom wall, and a front wall defining an upwardly and rearwardly inclined front face and rear face, comprising a body defining a forwardly extending main recess located rearwardly of the front wall; the body also defining an undercut recess located rearwardly of the front wall rear face and extending outwardly from the main recess toward the top wall and toward the bottom wall, proximate the rear face; the head having rearward projection with downward thickening between the top wall and the main recess, and rearwardly of the undercut recess that extends toward the top wall, the undercut recess that extends toward the top wall having forward and rearward sides that extend generally parallel to one another; the rearward projection having a lower surface facing the main recess, the lower surface intersecting the rearward side of the undercut recess at an acute angle.