baber/WOPTO huggingface dataset:
Patent CA-2009418-C (CA)
Inventor: TU MAI X
IPC: H02K37/16
Filed: 1990-02-06
Granted: 1993-08-17
Abstract: Le rotor multipolaire est aimanté dans le sens axial et comporte, dans une de ses faces située en regard des pièces polaires, des pôles alternativement nord et sud répartis le long de sa périphérie. Chacune des pièces polaires présente un bord intérieur concave muni de dents séparées par les zones intercalaires. Le noyau, sur lequel est monté la bobine, couple magnétiquement les pièces polaires à la bobine. Le pas as des dents des pièces polaires est différent du pas .alpha.r des pôles du rotor.
Patent CA-2012678-C (CA)
Title: Trepanning tool
Inventor: HAMILTON MARTIN N
IPC: B23B51/04
Filed: 1990-03-21
Granted: 1998-04-21
Abstract: A trepanning tool having a hollow,  cylindrical  body having a central axis with a drive means on one end and a means supporting cutting inserts on the other end.   The cutting inserts are arranged to cut in groups of three. Each insert has at least one generally straight cutting edge, the second insert of each said group being disposed generally perpendicular to the central insert, the cutting edge of the first and third insert each being disposed at an acute angle in a vertical plane to the cutting edge of the first  insert whereby  the  three  inserts  cut a concave circular groove as the tool rotates.
Patent CA-2014356-C (CA)
Inventor: WALMSLEY GRAHAM DEREK
IPC: C08J9/14
Filed: 1990-04-11
Granted: 1999-12-21
Abstract: A polyurethane foam is produced using acetone as an auxiliary blowing agent. A polyol, an isocyanate, water, acetone and a catalyst for catalyzing the formation of polyurethane are mixed to produce an unfoamed liquid mixture, which is then retained in bulk form, preferably in an open-topped reaction vessel, for a dwell time during which an exothermic reaction occurs and the liquid foams. Finally, the foaming liquid is spread on to a surface on which it is allowed to expand and form a solid polyurethane foam material. Significant reductions in the amount of auxiliary blowing agent can be achieved, as compared with conventional formulations using methylene or CFC's as auxiliary blowing agents.
Patent CA-2017259-C (CA)
Title: Transparencies
Inventor: MALHOTRA SHADI L
IPC: B32B23/08
Filed: 1990-05-22
Granted: 1995-11-21
Abstract: A transparent substrate material for receiving or containing an image and comprised of a supporting substrate base, an antistatic polymer layer coated on one or both sides of the substrate and comprised of hydrophilic cellulosiccomponents, and a toner receiving polymer layer contained on one or both sides of the antistatic layer, which polymer is comprised of hydrophobic cellulose ethers, hydrophobic cellulose esters, or mixtures thereof, and wherein the toner receiving layer contains adhesive components.
Patent CA-2017647-C (CA)
Title: Machine for forming cylindrical bales of crop
Inventor: VIAUD JEAN
IPC: A01F15/08
Filed: 1990-05-28
Granted: 1993-11-09
Abstract: MACHINE FOR FORMING CYLINDRICAL BALES OF CROP          Abstract of the Disclosure A baling machine includes a variable volume baling chamber with which there is associated a hydraulic tension cylinder containing fluid in its rod end for resisting expansion of the baling chamber.  A high pressure relief valve is connected in circuit between the opposite ends of the cylinder for permitting fluid transfer between the ends in accordance with the pressure setting of the valve.  A low pressure relief valve is connected in circuit between the opposite ends of the tension cylinder so as to be in parallel with the high pressure relief valve.  A mode select valve is located in circuit between the tension cylinder and the low pressure relief valve and is shiftable between a dense bale position wherein it prevents flow from the rod end of the tension cylinder to the low pressure relief valve whereby fluid exchange between the opposite ends of the tension cylinder is by way of the high pressure relief valve, and a soft bale position wherein it allows fluid to flow freely from the rod end of the tension cylinder to the low pressure relief valve whereby fluid exchange between the opposite ends of the tension cylinder is by way of the low pressure relief valve.
Patent CA-2022745-C (CA)
Title: Accelerometric sensor with flectional vibratory beams
Inventor: JANIAUD DENIS
IPC: G01P15/08
Filed: 1990-08-07
Granted: 1994-11-08
Abstract: The accelerometric sensor is of the type comprising a fixed mass, a mobile mass and two flectional vibrating beams each having ends that are linked to the masses. According to the invention, the masses and the beams consist of one single piece machined in a same plate of material of uniform thickness, e.g. in a piezoelectric material such as quartz. The single piece preferably comprises two second beams each having ends that are integral with the masses and placed on both sides of the vibratory beams. The flexural stiffness of the second beams is higher than that of the vibrating beams.
Patent CA-2027242-C (CA)
Title: Projection television apparatus for reducing red-emphasized peripheral screen portions
Inventor: TETSUDA HIROSHI
IPC: H04N5/74
Filed: 1990-10-10
Granted: 1993-07-20
Abstract: ABSTRACT OF THE DISCLOSURE        A projection television apparatus is composed of a combination of cathode ray tubes for the three primary colors, red, green and blue. The green and blue cathode ray tubes have a multilayered interference filter disposed on the inner surface thereof and display light on a screen, the intensity of which is varied by the multilayered interference filter, passing through a series of projection lenses positioned in front of the cathode ray tubes. The red cathode ray tube has no multilayered interference filter and produces light having a distribution of luminous intensity nearly equal to that of the green and blue lights. This is achieved by displaying light, the luminous intensity of which is not varied, passing through a series of projection lenses with a diaphragm.
Patent CA-2027988-C (CA)
Title: Method and apparatus for cleaning chimneys
Inventor: LLOYD KERRY W
IPC: B08B9/02
Filed: 1990-10-18
Granted: 2002-01-01
Abstract: A method and apparatus for cleaning chimneys. The method comprises the step of exhausting air up the chimney at a predetermined rate, brushing the flue from the top of the chimney down, loosening dust and both fine and larger particles, exhausting the dust and fine particles with the air, dropping the larger particles into the lower portion of the chimney, and removing the larger particles from the lower chimney portion. The apparatus includes an exhaust fan or blower positioned on the top of the chimney with the inlet thereof being in a ceiling relationship with the chimney flue.
Patent CA-2032966-C (CA)
Title: Domestic appliance having electrically isolated input control circuitry
Inventor: STRIEK RALF-JURGEN
IPC: G05B19/042
Filed: 1990-12-21
Granted: 2000-09-12
Abstract: In a domestic appliance such as a washer, dishwasher, dryer, beverage preparation device or the like having several control circuits driven by varying voltage supplies, the input control circuit is supplied with a relatively low voltage and is electrically isolated from higher voltages within the circuitry of the appliance. An optical isolator is provided in the communication channel between the input control circuit and a power control circuit which is connected to circuit elements connected to the A. C. line voltage, The low voltage supply driving the input control circuit is also isolated from the A. C. line voltage. All operator accessible components are coupled to the input control circuit and are therefore isolated from the A.C. line voltage.
Patent CA-2037641-C (CA)
Title: Measuring cell
Inventor: VON ALFTHAN GEORG CHRISTIAN
IPC: G01N1/20
Filed: 1991-03-06
Granted: 2001-08-07
Abstract: The invention relates to a measuring cell for analyzing solid granular or pulverous material, which measuring cell (1) is provided with an aperture (5) in the wall for a mea-suring window (6). Through the measuring window, the mate-rial fed in the measuring cell (1) can be analyzed according to the invention, so that inside the measuring cell (1) there is installed a feeder (10) in order to regulate the essentially continuous material flow passing through the measuring cell (1), and a guide member (8) in order to guide the material flow to pass by essentially near to the mea-suring window (6).
Patent CA-2042952-C (CA)
Title: Multipath self-routing network using availability information for switching asynchronous time division multiplex cells
Inventor: HENRION MICHEL A
IPC: H04L12/56
Filed: 1991-05-21
Granted: 1995-06-13
Abstract: Multiple-path and cell self-routing switching network for switching asynchronous time-division multiplexed cells characterised in that 
 
  - each elementary switch of a relevant stage of the switching network comprises state establishment means defining an availability state for routing the cell traffic, 
  - each elementary switch of the said relevant stage comprises state transmission means associated with the incoming links of this elementary switch transmitting an availability state datum when the relevant elementary switch is in the said availability state, 
  - each elementary switch of a preceding stage comprises state data reception means receiving an availability state datum for each of its outputs, when the latter leads to an elementary switch in the said availability state, and 
  - each of the switches of the said preceding stage comprises security means intervening in the cell routing decisions by prohibiting their access to any output whose outgoing link does not give rise to the reception of an availability state datum. 
 
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Patent CA-2043872-C (CA)
Title: Method of nitriding steel
Inventor: YOSHINO AKIRA
IPC: C23C8/34
Filed: 1991-06-04
Granted: 2000-12-12
Abstract: This invention relates to a method for forming a uniform, deep nitride layer on and in steel works at low cost, wherein a steel work is fluorided in heated condition in an atmosphere of a mixed gas composed of fluorine gas and inert gas and, then, nitrided in heated condition in an atmosphere of nitriding gas.
Patent CA-2046740-C (CA)
Title: Child's combination carseat and stroller
Inventor: CONE RICHARD E
IPC: B62B7/06
Filed: 1991-07-10
Granted: 2002-01-29
Abstract: A convertible carseat/stroller (10) is of the type having a molded plastic shell (12) with lower door panels (21, 22) in the shell and a wheel assembly includes front and rear legs (14, 15) pivotally connected to a common sup-port member (25) within the shell and extensible between a downwardly divergent stroller position beneath the shell and upper retracted position within the shell under the control of a manual release member (26) which is slidable along the support member for the wheel assembly. A handle unit (13) is telescopically mounted with respect to the support member and is retractable into the shell when con-verted into a carseat. The door panels on the bottom of the shell follow movement of the wheel assembly so as to open in extending the wheel assembly beneath the shell for use as a stroller and will return to a closed position when the wheel assembly is retracted into the shell.
Patent CA-2047440-C (CA)
Inventor: LAUTERBACH ACHIM
IPC: A47B57/40
Filed: 1991-07-19
Granted: 1994-10-25
Abstract: Apparatus for securing a hooked member to a post after engagement of the hooked member with the post.  The hooked member has vertically aligned upper and lower hooks. A deformable locking tab is formed atop the lower hook, beneath a recessed web portion of the hooked member.  The locking tab has top, rear and front edges.  A locking arm projects forwardly from the front edge.  A first notch is cut in the top edge; and, a second notch is cut in the recessed web portion, adjacent the first notch.  A levering implement such as a screwdriver can be fitted between the notches and used to pry the locking tab away from the locked position if it is desired to remove the hooked member from the post.
Patent CA-2049137-C (CA)
Inventor: PEDERSEN HARRY EMIL
IPC: B62D5/093
Filed: 1991-08-13
Granted: 1995-08-01
Abstract: A hydraulic steering system for vehicles comprises a steering unit (1) for operation of a steering motor (14). The steering motor can be supplied selectively by way of a by-pass valve (16) with compressed fluid.    Each motor chamber (12, 13) is connected selectively by way of a change-over valve (10, 11) to the motor line (20, 21) of the by-pass valve (16) or to a motor line (8, 9) of the steering unit (1).   The change-over valve (10, 11) is switchable in dependence on the activation of the steering unit (1).     In this manner the steering motor can be adjusted more rapidly than it is by the steering unit, without the steering safety during normal steering operation being lost.
Patent CA-2051579-C (CA)
Title: Procedure and apparatus for glazing a paper or cardboard web
Inventor: KARTOVAARA ILKKA
IPC: D21H25/00
Filed: 1991-09-17
Granted: 2005-06-14
Abstract: The invention concerns a procedure for glazing a cardboard web, the coated side of the web (1), dry matter content less than 80% by weight, being contacted with the surface of a heated, smooth belt (2), and the opposite side of the web being contacted with a cooled belt (3) or equivalent, and apparatus for implementing the procedure, comprising a smooth belt (2) with heating means (7) for heating the belt, placed immediately after the coating means (4) so that the web is conducted onto the belt immediately after the coating means, with the coating against the belt.
Patent CA-2066400-C (CA)
Inventor: WILSON GREGORY P
IPC: H04L69/14
Filed: 1991-08-02
Granted: 1996-09-24
Abstract: A multiplexed synchronous/asynchronous data bus is disclosed in which three bus lines are used to convey bidirectional synchronous data between at least two data devices at a relatively low data rate. Valid half duplex asynchronous data is applied at a higher data transfer rate to one of the three bus lines when only one of the bus lines is held in a logic high state.
Patent CA-2068910-C (CA)
Title: Arrangement for enveloping objects in enveloping material taken from two storage reels
Inventor: BJORKMAN CLAES
IPC: B65B61/10
Filed: 1992-05-19
Granted: 1994-09-13
Abstract: ABSTRACT OF THE DISCLOSURE        An arrangement for enveloping an object located between two heat weldable webs of enveloping material includes two coacting welding jaws for joining the webs together  in  their  transversal  direction  on  mutually opposite sides of the object.  The welding jaws extend in the transverse direction of the webs,  across the whole width thereof.   One of the jaws is a wire-carrying jaw which supports a freely extending heating wire, and the other jaw is forked and has two legs.   The jaws are moveable between a starting position on opposite sides of the webs, and a web welding position in which the webs are held together with the free ends of the fork legs in abutment with one side of the webs and with the heating wire located at the mouth region of the fork gap and in abutment with the other side of the webs.  The wire functions to weld said material webs together and to melt-off the webs within the weld region.   In the welding position, at least one of the jaws is biassed by a spring means towards a further position in which the wire is located within the forked jaw, between the legs thereof at a distance from the mouth of the fork gap.
Patent CA-2069900-C (CA)
Title: Dna segment encoding a gene for a receptor related to the epidermal growth factor receptor
Inventor: KRAUS MATTHIAS H
IPC: A61K47/48
Filed: 1990-11-30
Granted: 2004-07-27
Abstract: A DNA fragment distinct from the epidermal growth factor receptor (EGF-R) and erbB-2 genes was detected by reduced stringency hybridization of v-erbB to normal genomic human DNA.  Characterization of the cloned DNA fragment mapped the region of v-erbB homology to three exons with closest homology of 64 % and 67 % to a contiguous region within the tyrosine kinase domains of the EGF-R and erbB-2 proteins, respectively, cDNA cloning revealed a predicted 148 kd transmembrane polypeptide with structural features identifying it as a member of the erbB  family, prompting designation of the new gene as erbB-3. It was mapped to human chromosome 12q11-13 and was shown to be expressed as 6.2 kb transcript in a variety of normal tissues of epithelial origin. Markedly elevated erbB-3 mRNA levels were demonstrated in certain human mammary tumor cell lines. These findings indicate that increased erbB-3 expression, as in the case of EGF-R and erbB-2, plays a role in some human malignancies.
Patent CA-2069915-C (CA)
Title: A process for the production of low fat butter and an assembly to be used when carrying out said process
Inventor: PEDERSEN ERNST NYRGAARD
IPC: A23C15/16
Filed: 1990-11-07
Granted: 2002-01-01
Abstract: A process for the production of butter with a low fat content on the basis of ordinary butter preferably having a fat content of 80-83 % and exclusively made on the basis of milk. The ordinary butter is fed continuously through a tightly sealed assembly according to the invention from the inlet of the assembly to the outlet of the assembly. During its process flow through the assem-bly, the butter passes a kneading section where an airless aqueous solution containing lactic acid concentrate is continuously be-ing added to the butter whereupon it is heated to between 15 and 25 °C  while being kneaded. The butter then passes through a mixing section where it is continuously being admixed with an aqueous solution containing milk protein. As a result, a low fat butter with taste qualities, spreadability and attractive appearance comparable to that of ordinary butter is provided.
Patent CA-2075470-C (CA)
Title: Wave power generating device
Inventor: THIBAULT MAURICE
IPC: E02B9/08
Filed: 1992-08-06
Granted: 1999-04-06
Abstract: A wave power generating device which utilizes a simple mechanical arrangement to convert wave energy to rotational energy for subsequent conversion to other forms of energy. A main flotation section supports a pair of guides within which a frame is slidable. The frame has a float attached thereto which is responsive to the action of the waves for reciprocating the frame within the guides. A pair of racks movable with the frame and engageable with a pair of one-way drive mechanisms mounted on a power shaft drive the shaft uni-directionally on both the upstroke and the downstroke of the frame. Preferably, the guides are disposed at an oblique angle with respect to the vertical for capitalizing, at least in part, on the kinetic energy of the wave.
Patent CA-2082442-C (CA)
Inventor: GRINDATTO BERNARD
IPC: C01B31/36
Filed: 1992-11-09
Granted: 2000-02-01
Abstract: Procédé de préparation de carbures métalliques et de carbure de silicium à haute surface spécifique destiné surtout à la fabrication de catalyseurs ou de supports de catalyseurs pour l'industrie chimique et pétrochimique. Le procédé consiste à faire réagir un composé volatil du métal ou du silicium sur du carbone à haute surface spécifique à une température de 900 à 1400.degree.c sous balayage d'un gaz inerte. De préférence, le procédé est mis en oeuvre en continu, par exemple dans un four tournant. Les carbures obtenus sont caractérisés par une teneur de 0 à 30% en carbone résiduel, de moins de 1% en métal résiduel, par une surface BET comprise entre 10 à 200 m2/g, et une taille des cristallites comprise entre 50 et 400 angstroms.
Patent CA-2089011-C (CA)
Title: Blocked polyisocyanates prepared from partially trimerized cyclic organic diisocyanates having (cyclo)aliphatically bound isocyanate groups and their use for the production of coatings
Inventor: VENHAM LANNY D
IPC: C09D175/04
Filed: 1993-02-08
Granted: 2003-08-05
Abstract: The present invention relates to a blocked polyisocyanate which is based on the reaction product of a polyisocyanate with a reversible, monofunctional blocking agent for isocyanate groups, wherein the polyisocyanate is prepared by trimerizing 5 to 85% of the isocyanate groups of a cyclic organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and contains i) an isocyanurate group-containing polyisocyanate and ii) at least 5% by weight, based on the weight of the polyisocyanate, of unreacted diisocyanate.      The present invention also relates to a one-component coating composition containing this blocked polyisocyanate and a polyhydroxyl polyacrylate and/or a polyhydroxyl polyester.      Finally, the present invention relates to substrates coated with this coating composition.
Patent CA-2098190-C (CA)
Title: Compensating filters
Inventor: CRAVEN PETER GRAHAM
IPC: H04R29/00
Filed: 1991-12-11
Granted: 2002-02-05
Abstract: A prefilter (5) for an audio system comprising a loud-speaker (1) in a room (2), which corrects both amplitude and phase errors due to the loudspeaker (1) by a linear phase correc-tion filter response and corrects the amplitude response of the room (2) whilst introducing the minimum possible amount of extra phase distortion by employing a minimum phase correc-tion filter stage. A test signal generator (8) generates a signal comprising a periodic frequency sweep with a greater phase repetition period than the frequency repetition period. A micro-phone (7) positioned at various points in the room (2) measures the audio signal processed by the room (2) and loudspeaker (1), and a coefficient calculator (6) (e.g. a digital signal processor device) derives the signal response of the room and thereby a requisite minimum phase correction to be cascaded with the lin-ear phase correction already calculated for the loudspeaker (1).      Filter (5) may comprise the same digital signal processor as the coefficient calculator (6). Applications in high fidelity audio reproduction, and in car stereo reproduction.
Patent CA-2099011-C (CA)
Title: Angioplasty device incorporating transmission member and ablation probe
Inventor: SIEGEL ROBERT J
IPC: A61B18/12
Filed: 1992-01-09
Granted: 2000-03-28
Abstract: An ultrasonic angioplasty device comprising an elongate ultrasound transmission member (20) having a proximal end attachable to an ultrasound generating device and a bulbous distal head (22) or probe formed on the distal end thereof for effecting ablative treatment of an occluding lesion.  The ultrasound transmission member (20) may be formed of one or more superelastic metal alloys such as Niti (50 at. % Ni). A guidewire lumen (14) may be formed in the distal head or probe to permit passage of a guidewire therethrough. Portions of the ultrasound transmission member may be curved or bent. Portions of the ultrasound transmission member may be tapered or narrowed. One or more surface disruptions may be formed on the distal head or probe to improve treatment efficacy. An increased hardness coating or outer skin may be formed on the ultrasound transmission member. The device of the present invention may be incorporated into an angioscopic device.
Patent CA-2109273-C (CA)
Title: Telephone call processing arrangement based on calling and called party telephone services
Inventor: FISCHELL SARAH T
IPC: H04Q3/00
Filed: 1993-10-26
Granted: 1996-11-19
Abstract: A telephone services functionality is disposed in a telecommunications network to ensure that a telephone call is processed in accordance with the telephone services respectively subscribed to by the calling and called parties. In addition, the functionality retains control over the call so that it may respond to service requests entered by either the calling or called party at any point following establishment of the call connection.