baber/WOPTO huggingface dataset:
Patent CA-2093523-C (CA)
Inventor: WANNOP GEORGE
IPC: B25B13/46
Filed: 1991-08-15
Granted: 1998-09-01
Abstract: A ratchet wrench (10) having a handle (12) through which a rotatable shaft (16) extends. A bevel gear (26) is coupled to one end of the shaft for rotation by the shaft about an input drive axis. A pair of concentrically aligned ring gears (30, 32) are coupled to the bevel gear for counter rotation of the ring gears, by the bevel gear, about an output drive axis perpendicular to the input drive axis. A drive member (64) is mounted inside the ring gears for rotation about the output drive axis. A ratchet mechanism (42, 44, 52, 54) couples the ring gears to the drive member such that, for either direction of rotation of the bevel gear, one of the ring gears is coupled to the drive member and the other of the ring gears is decoupled from the drive member The ring gears are further coupled to the bevel gear for unidirectional rotation of the ring gears about the output drive axis in response to pivotal movement of the handle about the output drive axis. The ratchet mechanism additionally couples the ring gears to the drive member such that, upon such unidirectional rotation of the ring gears about the output drive axis, both of the ring gears are coupled to the drive member.
Patent CA-2095541-C (CA)
Title: Aggregated composite mineral pigments
Inventor: BROWN ALAN J
IPC: C09C1/42
Filed: 1991-11-04
Granted: 1997-07-15
Abstract: A process for forming chemically aggregated composite porous bulking pigments for use in paper filling and coating formulations. An aqueous slurry is formed of feed mineral particles selected from one or more members of the group consisting of kaolin, calcium carbonate, titanium dioxide, gypsum, and mica. A high molecular weight carboxyl-containing polymer or copolymer is added to the slurry to flocculate the mineral particles. An excess of calcium ion is added to the flocced slurry to precipitate the calcium salt of the carboxyl-containing polymer in situ on the feed mineral flocs, structure and thereby form aggregates of feed mineral particles by the calcium salt and having a bulk, porous, floc structure. Gaseous carbon dioxide is added to the slurry, and reacts with remaining calcium ion to precipitate calcium carbonate onto the polymeric carboxyl calcium salt. This forms additional light scattering voids or pores and strengthens the connections among the flocced feed particles. The resultant composite aggregates are recovered and dried, as product. The composite aggregate products are also disclosed and claimed.
Patent CA-2096297-C (CA)
Title: Transfer device, such as a printer device
Inventor: MANDZUK RAYMOND A
IPC: B41K3/56
Filed: 1993-05-14
Granted: 2004-07-27
Abstract: A simplified printer device has a print body on one end of which a print head is mounted, the print body being longitudinally movable along an inking stroke and being longitudinally movable along a printing stroke, with the printing stroke being angularly offset by approximately 90° from the inking stroke, and with the print body being pivotally movable through an intermediate pivot stroke between the inking stroke and the printing stroke. A piston and cylinder assembly is connected to the print body for operatively causing advance movement of the print body along the inking stroke, the pivot stroke and the printing stroke, and return movement of the print body along the printing stroke, the pivot stroke and the inking stroke. The print body has a longitudinally elongated slot, and a fixed pivot pin is disposed in the elongated slot in the print body for guiding the print body, a first freely rotatable roller restraining the print body against pivotal movement during advance movement of the print body along the inking stroke. A channel in the print body is in alignment with the first roller at termination of the advance movement of the print body along the inking stroke whereby the print body undergoes advance movement along the pivot stroke during which the first roller passes through the channel in the print body. A second freely rotatable roller terminates the advance movement of the print body along the pivot stroke and restrains the print body against pivotal movement during advance movement of the print body along the printing stroke, the first roller restraining the print body against pivotal movement during return movement of the print body along the printing stroke. At termination of the return movement of the print body along the inking stroke the print body undergoes return movement along the pivot stroke during which the first roller passes through the channel in the print body, and return movement of the print body along the pivot stroke being terminated by a third freely rotatable roller, with the second roller restraining the print body against pivot movement during return movement of the body along the inking stroke.
Patent CA-2097421-C (CA)
Inventor: LUDDEN CHRISTOPHER ANTHONY
IPC: H02M3/28
Filed: 1991-12-19
Granted: 1996-11-05
Abstract: A DC-to-DC converter (10) is operated in accordance with a predetermined primary circuit ON time (tON) and a sensed predetermined secondary circuit current level (IS) to provide improved charging performance and extended battery life. En-ergy is stored in the primary (14) of a coupled inductor (12) when power in the primary, provided by a battery (20) having an internal impedance (24) which varies over the battery's lifetime, is switched ON for a predetermined time tON.  Upon expira-tion of time tON, power is switched OFF, whereupon stored energy is transferred to the secondary (16) via a flyback type process, thus charging a storage capacitor (28). A preventing means (56) prevents a premature switching ON of power in the primary (14) subsequent to the expiration of time tON. The energy storage cycle repeats when current (IS) sensed in the sec-ondary decreases below a predetermined minimum current threshold (IMIN).
Patent CA-2100159-C (CA)
Title: Rapid assays for amplification products
Inventor: LINK JOHN R
IPC: C12Q1/68
Filed: 1992-11-13
Granted: 2003-01-21
Abstract: A method of detecting a nucleic acid sequence of interest in the amplification product of a polymerase chain reaction or other primer directed reaction comprising the steps of: (a) incorporating in a polymerase chain reaction mixture or other primer directed reaction mixture at least one nucleic acid sequence complementary to said nucleic acid sequence of interest labeled (i) at the 3' end thereof, or (ii) at the 3' and the 5' end thereof with a compound capable of electrochemiluminescence; (b) conducting a polymerase chain reaction or other primer directed reaction; and (c) measuring the electroehemiluminescence of labeled amplifi-cation product.
Patent CA-2100361-C (CA)
Inventor: LEE CHUNG-LI
IPC: D21C9/16
Filed: 1992-02-04
Granted: 1997-07-22
Abstract: A chemical pulp that contains reactants able to generate a dioxirane within the pulp. The reactants comprise of carbonyl compound, preferably a ketone, and oxygen donor in proportions suitable to produce a dioxirane having a molecular diameter of less than 140 angstrom units. A process of bleaching a chemical pulp is also described. The process comprises mixing the pulp with the reactants able to generate a dioxirane within the pulp.
Patent CA-2100595-C (CA)
Inventor: WIRICK CLOYD F
IPC: B61D9/06
Filed: 1993-07-15
Granted: 1997-04-08
Abstract: A connection members for attaching the upper portion of an inside stake of a gondola car to the upper chord and to the side wall.  A pair of connection members are employed on the upper portion of the inside stake and compliment its configuration.          Bolt and nut assemblies affixed the connection members to the upper portion of the inside stake member and the upper chord.
Patent CA-2110881-C (CA)
Title: Adaptive equalizer capable of compensating for carrier frequency offset
Inventor: TAKAHASHI KYO
IPC: H04L25/03
Filed: 1993-12-07
Granted: 1998-07-28
Abstract: An adaptive equalizer includes a multiplier for multiplying, by corrective data, an output signal from a filter unit for compensating for a signal distortion to which input digital data are subjected, a decision unit for estimating and outputting symbols of output data from the multiplier, a subtractor for subtracting an output signal of the decision unit from the output data from the multiplier, multipliers for inversely correcting the output signals from the decision unit and the subtractor which are corrected by the multiplier, a coefficient updating unit for updating the coefficients of the filter unit based on an output signal from the multiplier which inversely corrects the output signal from the subtractor, and a frequency offset estimating unit for estimating corrective data based on a frequency offset on the basis of the output signal from the multiplier which inversely corrects the output signal from the subtractor, and using the estimated corrective data as corrective data for the multiplier which multiplies the output signal from the filter unit by corrective data.  An output signal from the multiplier which inversely corrects the output signal from the decision unit is fed back to a feedback filter of the filter unit.
Patent CA-2112710-C (CA)
Title: Multimedia packet communication system
Inventor: SUZUKI HIROSHI
IPC: H04L12/28
Filed: 1993-12-31
Granted: 1999-07-27
Abstract: In a multimedia packet communication system, connections can be selectively used automatically and dynamically in accordance with qualities required by an application.  A plurality of communications of different required qualities are involved for setting quality classes.  The multimedia packet communication system comprises a network layer including mapping means for mapping a plurality of different required qualities from a layer protocol of a higher order than the network layer into corresponding connection types.  The network layer further includes a driver for setting the thus-mapped connections to individual packets.
Patent CA-2117711-C (CA)
Inventor: FRIMML ROGER WILLIAM
IPC: A01F15/10
Filed: 1994-09-20
Granted: 1999-03-16
Abstract: A large round baler is equipped with a pickup having a reel provided with fixed tooth bars to which are mounted a plurality of teeth having tines projecting approximately radially outwardly from the axis of rotation of the reel.  The fixed tines cooperate with the upper surface of a stripper assembly to convey crop directly into the inlet of a baling chamber and against an upwardly moving surface of a run of belts defining a rear wall of the chamber.
Patent CA-2123960-C (CA)
Title: Current sensor for medical devices with continuity monitor
Inventor: THOMPSON RICHARD K
IPC: A61B18/14
Filed: 1994-05-19
Granted: 2005-07-05
Abstract: A current sensing device enables sensing the current being delivered from a source to a load at a medical implement connected to the distal end of a primary conductor connected between the source and the load in situations wherein distributed capacitance between the primary conductor and a return path to the source prevents a measurement of current at the source end of the primary conductor from being an accurate measurement of the delivered current. The current sensing device includes a reference conductor which is located beside and is preferably twisted together with the primary conductor along the length thereof and which is connected to the medical implement load through a resistor at the load of a value such as to effectively electrically isolate the reference conductor from the load. A subtractor subtracts the current flowing through the reference conductor from the total load current flowing to the medical implement so as to offset the effect of the distributed capacitance and to thereby produce a current measurement corresponding to the delivered current. The subtractor can comprise a current transformer through which the conductors extend in opposing relation.      An integrity detector monitors whether the reference conductor is intact.
Patent CA-2124331-C (CA)
Title: Trapping device for animals, insects and the like
Inventor: HOVER JOHN S SR
IPC: A01M1/14
Filed: 1992-11-25
Granted: 1997-10-14
Abstract: An animal and insect trapping device (10) is disclosed having a cylindrical form with an inner circumferential surface (16). A helical band of adhesive (18) is disposed on this inner circumferential surface (16) for trapping and holding the targeted species. The cylindrical member may include a window (32) or be transparent for providing positive visual indication of the trapped species.
Patent CA-2127240-C (CA)
Title: Hockey goaltender's blocker with angled upper area
IPC: A63B71/14
Filed: 1994-06-30
Granted: 1999-03-09
Abstract: The goaltender's blocker has an angled upper area, with the inside edge of the blocker being raised more than the outside edge.  The angled upper area thus angles outwardly away from the plane of the rest of the blocking pad, and also towards the outside edge.  One result of this configuration is that when the goaltender is in the usual upright position with the blocker oriented generally upright, a puck which hits the angled portion of the blocker will be deflected outwardly, i.e. toward the corner of the hockey rink, instead of rebounding in front of the net where a goal may be scored by an offensive player.
Patent CA-2129051-C (CA)
Title: Absorbable composite materials for use in the treatment of periodontal disease
Inventor: HARVEY WILSON
IPC: A61F2/06
Filed: 1994-07-28
Granted: 2000-07-18
Abstract: Absorbable composite materials are described that comprise a collagen matrix reinforced with a layer of a biaabsorbable polymer. A chemotherapeutic agent is dispersed in the composite material. The layer of bioabsorbable polymer is preferably a woven, nonwoven or knitted mesh layer of a synthetic bioabsorbable polymer such as polylactic/polyglycolic acid copolymer, or oxidised regenerated cellulose. The chemotherapeutic agent may be an antibiotic, an anaesthetic, an antiseptic or an anti-inflammatory. Strips of the composite material are inserted into the periodontal pocket, where they are retained in place and provide effective sustained release of the chemotherapeutic agent over an extended period.
Patent CA-2130331-C (CA)
Title: Glass brick partition members
Inventor: CONTI JEAN-PIERRE
IPC: E04C2/54
Filed: 1993-12-16
Granted: 1998-01-20
Abstract: The partition components in this invention include frame components forming a frame structure (1) having open cells to hold glass bricks (18). Beading (16, 17) is shaped to fasten to the edges of the components of the frame (1) around the openings of the said cells and to cover the edges of the glass bricks (18) so as to keep them in their respective cells.
Patent CA-2133756-C (CA)
Title: Treatment of urological and gastric fluid reflux disorders by injection of micro particles
Inventor: ERSEK ROBERT A
IPC: A61L27/18
Filed: 1993-03-30
Granted: 2000-02-22
Abstract: Novel principles for treating urological and gastric fluid reflux disorders are disclosed involving the injection of textured micro particles (30) wherein the textured micro particles having a combination of average unidimensional particle size range and average particle texture cooperate substantially to prevent loss of the micro particles from any injection site (31).
Patent CA-2133838-C (CA)
Title: Immunotoxins directed against cd33 related surface antigens
Inventor: ROSENBLUM MICHAEL G
IPC: A61K47/48
Filed: 1993-04-08
Granted: 2003-07-29
Abstract: The present invention provides novel immunotoxins and methods of treating neoplastic diseases. These immunotoxins ace comprised of a conjugation of an antigen binding region exhibiting binding specificity for the CD33 protein and a cell growth modulator. The immunotoxins of the present invention specifically and selectively-kill tumor cells that are characterized by the expression of C1733 antigen. Thus, the novel immunotoxins would be useful in treating human leukemias, both acute and chron-ic, and other myelodysplastic syndromes.
Patent CA-2135885-C (CA)
Inventor: DE RIJKE JAN M
IPC: B01J38/00
Filed: 1993-05-26
Granted: 2002-10-08
Abstract: A cobalt value recovery method, especially for use in recovering cobalt catalyst from an aqueous medium obtained in puri-fying the product of an oxo reaction, in which recovery is effected in a closed cycle using an outboard unit, the aqueous medium being treated with an organic solvent and syn gas to convert the cobalt to volatile carbonyls for re-use.
Patent CA-2137539-C (CA)
Inventor: DERLETH HELMUT
IPC: C07B61/00
Filed: 1994-12-07
Granted: 2006-10-24
Abstract: Composition catalytique comprenant du chlorure de cuivre, du chlorure de magnésium et du chlorure de potassium déposés sur une alumine, utilisable en parti- culier pour l'oxychloration de l'éthylène en 1,2-dichlor- éthane. Dans les procédés d'oxychloration de l'éthylène à l'oxygène en lit fluide, cette composition catalytique permet d'obtenir un excellent rendement en 1,2-dichlor- éthane sans provoquer le dépôt de salissures à la surface des tubes du faisceau de l'échangeur thermique disposé dans le réacteur.
Patent CA-2142308-C (CA)
Title: Dna sequences which lead to the formation of polyfructans (levans), plasmids containing these sequences as well as a process for preparing transgenic plants
Inventor: ROBER MANUELA
IPC: C12N15/54
Filed: 1993-08-09
Granted: 2005-04-05
Abstract: There are described DNA sequences, which lead to the formation of polyfructans (levans), plasmids containing these DNA sequences, as well as a process using these plasmids for preparing transgenic plants with polyfructan (levan) expression.
Patent CA-2143476-C (CA)
Inventor: OTT DAVID FREDRICK
IPC: A01C5/06
Filed: 1995-02-27
Granted: 1999-01-12
Abstract: A closing wheel for an agricultural seeding machine.  The closing wheel comprises a circular disc having a series of radially extending scallops or cavities on the furrow facing side of the closing wheel.  The scallops or cavities extend to the circumferential edge of the disc forming a wavy or castellated edge.  The circumferential edge is beveled away from the furrow facing side of the closing wheel.  The disc is also provided with a central aperture for receiving a bearing assembly for rotatively mounting the disc onto a planter frame.
Patent CA-2146672-C (CA)
Title: Data processing system and operating system
Inventor: HINSLEY CHRISTOPHER ANDREW
IPC: G06F9/45
Filed: 1993-07-01
Granted: 2002-02-05
Abstract: A data processing system uses a plurality of in-dividual code segments, forming unique and autono-mous tools, which are bound into a complete execut-able process only at the time of loading or executing the process. This enables process code to be short and the required tools to be brought into and out of local memory only when required. The system may have an interconnected array of processor nodes and allocates processes in a parallel fashion between nodes auto-matically and transparently to the user, ensuring that the most efficient use is made of the processing power available. Tools are stored in a virtual code that en-ables portability between different hardware architec-tures.
Patent CA-2151341-C (CA)
Title: Mold clamping and precure of a polymerizable hydrogel
Inventor: MARTIN WALLACE ANTHONY
IPC: B29C35/08
Filed: 1995-06-08
Granted: 2007-08-14
Abstract: An apparatus and method for partially curing a polymerizable monomer or monomer mixture to form a soft contact lens includes a transport device for transporting a plurality of contact lens molds to a precure station in a low oxygen environment, each contact lens mold including a first and second mold half with a polymerizable monomer or monomer mixture therebetween. A clamping member clamps a first contact lens mold half against a second contact lens mold half for a predetermined pressure and time. While the mold halves of the contact lens mold are clamped, the polymerizable monomer or monomer mixture is exposed to a radiant energy source for polymerizing the polymerizable monomer or monomer mixture contained in each contact lens mold.
Patent CA-2153848-C (CA)
Title: Oxide thin film having quartz crystal structure and process for producing the same
Inventor: TANAKA MOTOYUKI
IPC: C30B23/02
Filed: 1995-07-13
Granted: 2003-05-13
Abstract: An oxide thin film having a quartz crystal structure formed on a substrate, the oxide thin film being composed of a single layer or a plurality of layers having a thickness of 5 nm to 50 µm per layer, each of the layer comprising silicon dioxide, germanium dioxide, or a mixture thereof.
Patent CA-2155345-C (CA)
Inventor: PFEIFFER JOHN DAVID
IPC: H02J7/00
Filed: 1993-08-27
Granted: 1999-12-21
Abstract: Un chargeur de batterie et un procédé pour charger les batteries alcalines, au Ni-Cad, à base de zinc, particulièrement les tailles N, AAA, AA, C et D, sont décrits. Pour les batteries d'environ 1,25 volts à 1,5 volts le chargeur de batterie et le procédé fournissent un courant constant de charge d'environ 0,28 ma à 1,5 ma par gramme de batterie. Un circuit à courant constant sous le contrôle d'un contrôleur, fournit le courant constant à la batterie sous charge. Un générateur de tension de référence génère des tensions de référence lorsque la batterie est en train d'être chargée, pendant que le contrôleur surveille fréquemment la tension de la batterie et la compare à la tension de référence. Un courant sensiblement constant est fourni à la batterie alors qu'une tension de référence plus grande que la tension de la batterie est fournie. Ensuite, alors que la tension de la batterie augmente, la tension de référence est augmentée jusqu'à une tension de référence maximale prédéterminée. Le contrôleur commande au circuit à courant constant d'arrêter l'alimentation en courant à la batterie lorsque la tension de référence atteint le maximum prédéterminé ou lorsque la tension de la batterie n'augmente pas pendant la charge de manière à être plus grande qu'une première tension de référence ou une tension de référence suivante pendant un temps de charge prédéterminé. Le contrôleur peut aussi commander au circuit à courant constant d'alimenter de temps en temps la batterie avec un courant de test constant qui dépasse le courant de charge d'environ 2,5 % à 25 % pendant un temps de test prédéterminé, et d'arrêter l'alimentation de la batterie en courant si le courant de test augmente d'une valeur supérieure à une valeur prédéterminée pendant le temps de test prédéterminé. En même temps, le chargeur de batterie peut charger des batteries de tailles différentes et il comporte un circuit à courant constant pour chaque batterie du chargeur de batterie. Chaque batterie est alimentée continuellement avec un courant de test ou un courant de charge tels qu'ils sont déterminés par le contrôleur et celui-ci contrôle la charge de chaque batterie, indépendamment des conditions de charge de toute autre batterie. Un contrôleur séparé peut contrôler chaque circuit à courant constant ou un microprocesseur peut contrôler tous les circuits à courant constant.
Patent CA-2155471-C (CA)
Title: Method and apparatus for testing concrete expansion
Inventor: LANDGREN ROBERT
IPC: G01F17/00
Filed: 1995-08-04
Granted: 2000-10-31
Abstract: A method and apparatus is disclosed for measuring on-site expansive volumetric changes in hardened, shrinkage-compensated concrete samples. The sample is disposed in a cylindrical container having a strain gauge for measuring hoop stress which is correlated with expansion of the sample.
Patent CA-2155835-C (CA)
Inventor: PFEIFFER FREDERICK R
IPC: G01C25/00
Filed: 1994-03-31
Granted: 2005-01-18
Abstract: An integrating analog-to-digital converter which includes a temperature sensor (340) to sense the temperature of selected analog circuit components and a storage (350) for storing information descriptive of the temperature characteristics of a quantity descriptive of the performance of the converter to correct the output of the converter as a function of the temperature.