baber/WOPTO huggingface dataset:
Patent CA-2197957-A1 (CA)
Title: Shopping Cart Having Front Basket Wall with Lowered Upper Edge and Combination with Checkout Stand
Inventor: HURST JACK W
IPC: B62B3/18
Filed: 1997-02-19
Abstract: A checkout stand supported by a floor has a working surface at a specific elevation above the floor and is combined with a shopping cart comprising a wheeled chassis, a handle structure, and a basket having side, bottom, and frontwalls, which are fixed to one another. The upper edges of the side walls are parallel to each other and slope downwardly toward the front wall. Being spaced at least several inches below the upper edges of the side walls, the upper edge of a central region of the front wall is located approximately at the same elevation above the floor. Each of two side regions of the front wall has a stepped edge between the upper edge of one of the side regions and the upper edge of the central region of the front panel.
Patent CA-2199120-A1 (CA)
Title: Time-of-flight radio location system
Inventor: MCEWAN THOMAS E
IPC: H04B1/7163
Filed: 1995-08-29
Abstract: A bi-static radar configuration measures the direct time-of-flight of a transmitted RF pulse and is capable of measuring this time-of-flight with a jitter on the order of about one pico-second, or about 0.01 inch of free space distance for an electromagnetic pulse over a range of about one to ten feet. A transmitter (53) transmits a sequence of electromagnetic pulses in response to a transmit timing signal, and a receiver (58) samples the sequence of electromagnetic pulses with controlled timing response to the samples. A timing circuit supplies the transmit timing signal to the transmitter and supplies the receive timing signal to the receiver. The receive timing signal causes the receiver to sample the sequence of electromagnetic pulses such that the time between transmission of pulses in the sequence and sampling by the receiver sweeps over a range of delays.
Patent CA-2199417-A1 (CA)
Title: Particle delivery
Inventor: BELLEHOUSE BRIAN JOHN
IPC: A61M5/20
Filed: 1995-10-20
Abstract: A needleless syringe comprising an elongate nozzle (5) at the upstream end of which is an open ended capsule chamber (19) in axial alignment with the nozzle and arranged, in use, to contain and intimately enclose a soft-walled capsule (19A) containing particles of a therapeutic agent, means (21) at the upstream end of the capsule chamber for piercing the upstream end of a capsule in the chamber, and energizing means (12) for applying through the open upstream end of the capsule chamber, after the capsule has been pierced, a gaseous pressure sufficient to force the particles out through the downstream end of the capsule and the open downstream end of the capsule chamber and thus to create through the nozzle (5) a supersonic gas flow in which the particles are entrained.
Patent CA-2199925-A1 (CA)
Title: Fluoroalkyl- and fluoroalkoxy-substituted heterocyclic bradykinin antagonists, process for their preparation, and their use
Inventor: WAGNER ADALBERT
IPC: C07D215/26
Filed: 1997-03-13
Abstract: Fluoroalkyl- and fluoroalkoxy-substituted heterocyclic bradykinin antagonists, process for their preparation, and their use Heterocyclic fluoroalkyl derivatives and fluoroalkoxy derivatives of the formula (I) having bradykinin-antagonistic action (see fig.I) in which X1-X3 are N or CR5, R1 and R2 are H or halogen, R3 and R4 are H, halogen, alkyl or alkenyl, R5 is H, halogen, (substituted) alkyl, O-R6, S-R6, NHR6, (substituted) aryl, (substituted)aryl-alkyl, -C(O)-OR6 or -C(O)-H, R6 and R8 H, alkyl, alkenyl or aryl-alkyl, R7 is (substituted) alkyl or(substituted) alkoxy, B is an aminocarboxylic acid, D is alkenediyl, alkanediyl or -(CH2)n-Yp -(CH2)m-, E is oxygen or sulfur, Y is oxygen, sulfur or NR8, n and m are a number 0 - 3, o is a number 1 - 3 and p is 0 or 1, and their physiologically tolerable salts and a process for their preparation are described.
Patent CA-2199968-A1 (CA)
Inventor: MITTELSTADT WILLIAM A
IPC: A61B17/128
Filed: 1995-08-11
Abstract: A clip advance for sequentially advancing a stack of surgical clips in a surgical clip applier. The clip advance includes a longitudinal extending housing having a first channel for receiving the clips. A pusher is mounted in the housing for reciprocating longidutinal movement. The pusher has a plurality of tabs arranged to correspondingly engage and distally move respective ones of the stack of clips when said pusher is moved distally. A  cam and cam surface interact to move the tabs out of longitudinal contacting alignment with the clips upon proximal movement of the pusher.
Patent CA-2200139-A1 (CA)
Title: Multimodulus blind equalization using piecewise linear contours
Inventor: WERNER JEAN-JACQUES
IPC: H04L25/03
Filed: 1997-03-17
Abstract: A blind equalization technique ~ the multimodulus algorithm (MMA) ~ adapts coefficients of an equalizer so as to minimize dispersion of the output samples, of the equalizer, around piecewise linear contours of a signal space. The MMA  technique is illustrated in the context of both square and non-square signal point constellations.
Patent CA-2201231-A1 (CA)
Inventor: WHITE JONATHAN R
IPC: H04W40/38
Filed: 1997-03-27
Abstract: A multi-channel communications network includes a host computer, a controller, at least one base station and a plurality of remote terminals which communicate with the base stations via RF communication. Each base station has a plurality of communication channels which can be used to communicate with the remote terminals. Each base station also uses a control channel to communicate with the remote station to indicate which of the plurality of communication channels is to be used to transmit the information. A channel history is kept for each of the plurality of communication channels such that selection by the controller of the channel for communication can be based not only on whether the channel is presently clear but also on the success rate of that channel in the past. The controller includes the capability of comparing various channel histories to determine which channel is most desirable. In another embodiment of the present invention a power management communication protocol allows battery powered terminals to remain in a sleep condition until a predetermined time wherein all terminals wake up. Each terminal executes a random backoff before requesting that the base station provide a list of terminals with messages pending. After the first terminal has requested this list from the base station, no other terminals make this request but instead listen to the message sent back to the first terminal after its request of the pending message list. Terminals awaiting messages remain awake while those not awaiting messages can return to sleep.
Patent CA-2203346-A1 (CA)
Title: Flame retardant high temperature polyphthalamides having improved thermal stability
Inventor: REICHMANN MARK G
IPC: B29C47/00
Filed: 1997-04-22
Abstract: The thermal stability of flame retardant, high temperature polyamides containing an organohalogen flame-retardant such as brominated polystyrene in combination with an antimony compound such as sodium antimonate during molding and similar melt fabrication operations is markedly improved when further combined with a minor amount of calcium oxide. The thermal stability of these compositions are much improved over analogous flame retardant polyamides formulated with magnesium oxide and/or zinc oxide.
Patent CA-2203617-A1 (CA)
Inventor: JONEN HIROSHI
IPC: C08K5/098
Filed: 1997-04-24
Abstract: A power transmission belt includes a body including a cushion rubber layer with a load carrying cord embedded therein. The cushion rubber layer includes a first rubber composition including a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, silica and an organic peroxide. The body also includes a compression rubber layer disposed on the cushion rubber layer. The compression rubber layer includes a second rubber composition including a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, and an organic peroxide. Further, a power transmission belt includes a body including a cushion rubber layer with a load carrying cord embedded therein, the cushion rubber layer including a first rubber composition. The body also includes a compression rubber layer disposed on the cushion rubber layer and including a second rubber composition. The second rubber composition includes a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, short fibers and an organic peroxide. The body further includes a crack-resisting layer disposed on the compression rubber layer and including a substantially fiber-free, substantially carbon black-free rubber composition including a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, and an organic peroxide. Still further, a power transmission belt includes a body having a cushion rubber layer with a load carrying cord embedded therein, the cushion rubber layer comprising a first rubber composition comprising a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, silica and an organic peroxide. The body also includes a compression rubber layer disposed on the cushion rubber layer and comprising a second rubber composition comprising a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, short fibers and an organic peroxide. The body further includes a crack-resisting layer disposed on the compression rubber layer and comprising a substantially fiber-free, substantially carbon black-free rubber composition comprising a hydrogenated nitrile rubber, an unsaturated carboxylic acid metal salt, and an organic peroxide.
Patent CA-2204309-A1 (CA)
Title: Bag filling and sealing apparatus
Inventor: NICASTRO SALVATORE
IPC: B65B51/30
Filed: 1997-05-02
Abstract: A machine for automatically filling and sealing large bulk thermoplastic bags which includes: a framework with a base and a  backplane  having  an  integral  sliding  carriage;   a pneumatically controlled filling spout which holds the bag open for filling; a pneumatically controlled finger mechanism which aligns the bag for sealing; and a pneumatically controlled sealing mechanism which comprises a mounting arm, a guide rail, a first and second pneumatic cylinder and a heat sealing assembly. The heat sealing assembly uses electrically heated pads  and  pressure  to  seal  the  upwardly  open  end  of  a thermoplastic bag after it has been filled.
Patent CA-2204407-A1 (CA)
Inventor: GAZAL LOUIS-PAUL
IPC: E02B11/00
Filed: 1996-09-04
Abstract: A drainage wall device prevents an underground flow of water from penetrating in a ground or underground area (11) and essentially comprises drainage wells (6) connected at their ends to each other by a counter-balancing drainage gallery (8). The assembly is installed opposite the underground flow of water (10) and an axial drainage gallery (13) is added to direct the collected flow downstream of the area to be protected or of another system for hydraulically removing the water from said wall. The distance between each drainage well (6) can be relatively large. The invention is useful for protecting municipal grounds from pollution, for insulating building foundations and for storing nuclear waste in vertical storage wells.
Patent CA-2205228-A1 (CA)
Title: Spongiform encephalopathy detection methods
Inventor: JONES VERITY
IPC: G01N33/569
Filed: 1995-11-28
Abstract: A method for detecting the presence of a spongiform encephalopathy (e.g. Bovine Spongiform Encephalopathy) in an animal comprising determining the presence and/or amount of agent (e.g. by 2D-polyacrylamide gel electrophoresis and staining) in a body fluid (e.g. cerebrospinal fluid) of the animal which has a molecular weight of between 35-39 kDa, and a pI of 5.3 and which does not cross-react with antibody raised against apoliprotein E and relating the result of this determination to a control value (e.g. from a known uninfected animal) so as to be able to detect the likely presence of spongiform encephalopathy in the animal.
Patent CA-2205395-A1 (CA)
Inventor: SATO SHINOBU
IPC: B60R13/06
Filed: 1995-11-03
Abstract: L'invention porte sur un outil de moulage (1) pour produits pour joints et sur un procédé d'étanchéification utilisant ledit outil pour conférer à la surface extérieure du produit une forme adéquate sans augmenter le nombre des pièces ou des étapes de travail nécessaires. Après que le produit (120), constitué d'une résine adhérant fortement à la jonction, ait été déposé sur une partie saillante ou en retrait de ladite jonction (107) des éléments, l'outil de moulage (1) confère à la surface extérieure (122) du produit (120) la forme voulue. L'outil de moulage (1) comporte un corps principal, présentant une surface de moulage (11) s'étendant sur la longueur des parties à joindre et recouvrant au moins la surface extérieure (122) du produit (120) et en contact avec ladite surface (122) de manière à la mouler, et un élément presseur (50) disposé à la surface du corps principal et le pressant vers la jonction afin de presser la surface de moulage contre la surface extérieure du produit.
Patent CA-2205520-A1 (CA)
Title: Detecting active emitters using scan rate correlation of tracking receiver and radar data
Inventor: KENNEDY THOMAS A
IPC: G01S7/292
Filed: 1997-05-15
Abstract: A method wherein the scan rate of an active emitter is simultaneously estimated by a tracking receiver and a radar system and are then compared to correlate tracks generated by the tracking receiver and the radar system. The output produced by the present method provides for data that is more accurately indicative of the locations and identifications of emitters tracked by the tracking receiver and the radar system. More specifically, the method comprises the following steps. An active emitter having a scanning antenna is simultaneously tracked using a tracking receiver and a radar system. The location of the emitter is estimated using the tracking receiver by processing measurements of the electromagnetic signals generated by the emitter. The scan rate of the emitter is estimated using the tracking receiver by detecting strobing of the main lobe of the signals generated the emitter. The scan rate of the emitter is estimated using the radar system. Finally, the respective estimated scan rates are correlated to improve the accuracy of the estimated location and identification of the emitter.
Patent CA-2207017-A1 (CA)
Title: Method and adjuvant composition to improve retention of particles on a wire screen
Inventor: RADU GEORGES
IPC: D21H21/10
Filed: 1997-05-23
Abstract: Disclosed is a method for the production of paper and an adjuvant composition comprising the following ingredients: 30 to 80 % by weight of phenolic resin or modified phenolic resin; 10 to 50% by weight of melamine resin; and 5 to 35% by weight of at least one naphthalene sulphonate salt.   The ingredients are under granulated form or dissolved in an aqueous solution.  The method comprises the step of admixing the adjuvant composition with a solution of one or several polyethylene oxide having a molecular weight varying from 1 x 106 to 13 x 106 and with an aqueous mixture comprising lignocellulosic  particles  and  an  aqueous  medium  to significantly improve the retention of particles such as fines and fibers, on a wire screen and the drainage of the aqueous medium.
Patent CA-2207561-A1 (CA)
Inventor: GIBBS DAVID E
IPC: A61M5/32
Filed: 1997-06-12
Abstract: A drilling catheter assembly comprising: a hollow drilling needle adapted to serve as a catheter affixed to a first flange at its non-drilling end; a second flange adapted at one side thereof to engage said first flange and adapted at its opposite side to engage a rotating shaft; and said first flange with affixed drilling needle and said second flange held together in an assembled position by means an outer protection housing open at its end near said opposite side.
Patent CA-2207762-A1 (CA)
Inventor: WESTFECHTEL ALFRED
IPC: C07C69/52
Filed: 1995-12-04
Abstract: The invention pertains to synthetic esters containing a) fatty acid mixtures with an oleic acid content of 85 wt % and a stearic acid content of 0.5 to 2.5 wt %, both relative to the mixture, b) alcohols and c) as desired, polyfunctional carboxylic acids. The invention also relates to hydraulic oils based on these esters, and to the use of the esters as lubricants, as hydraulic oils and in cosmetics.
Patent CA-2209790-A1 (CA)
Title: Microfibrillated cellulose and method for preparing same from primary wall plant pulp, particularly sugar beet pulp
Inventor: VINCENT ISABELLE
IPC: C09K8/20
Filed: 1996-02-07
Abstract: A microfibrillated cellulose contains at least 80% of prim. walls, and is charged with carboxylic acids.
Patent CA-2210266-A1 (CA)
Inventor: MACMILLAN JOHN R
IPC: G06F17/21
Filed: 1997-07-14
Abstract: A computer-implemented method for spacing characters rendered from a digital font at an output pointsize.  The font has first spacing metrics for a small pointsize and for a different large pointsize.  The method includes calculating a separation by interpolating the small pointsize metrics and the large pointsize metrics and spacing the pair as a function of the calculated separation.  Embodiments may include the following features.  The font has spacing metrics for at least three different pointsizes.  The spacing metrics include left sidebearings, right sidebearings, or kerning values.  A kerning value for a character pair is generated by interpolating a first kerning value at a small pointsize and a second kerning value at a large pointsize to the output pointsize.  The invention also features a computer program on a computer-readable medium having instructions for rendering characters and two sets of spacing metrics at two different pointsizes.  The invention also features a computer program having instructions for rendering a set of characters and a set of kerning values for all pairs consisting of one character from the set of characters and the space character. A method of the invention for justifying a line of text includes the steps of obtaining a kerning value for the pair (space, left-most text character) and a kerning value for the pair (right-most text character, space), positioning the text characters at the margins according to the kerning values.  A method of the invention includes the steps of reading kerning information into a random access memory, adding the kerning information to a matrix addressable by character pairs, using a pair of characters to address the matrix, using the matrix value to calculate a separation, and spacing the pair as a function of the calculated separation.
Patent CA-2213716-A1 (CA)
Title: Electronic anti-shoplifting system employing an rfid tag
Inventor: SMALL DONALD G JR
IPC: G07G3/00
Filed: 1997-08-22
Abstract: An electronic anti-shoplifting system monitors articles of merchandise in a sales outlet to deter shoplifting. The system is provided with transponder tags connected to the articles of merchandise. A tag exciter is positioned at an exit leading from the sales outlet and generates an RF surveillance excitation signal. If a customer carries an article through the exit without removal authorization due to failure to pay for the article, the transponder tag is activated, being powered by the RF surveillance excitation signal as the customer passes the tag exciter. The activated transponder tag generates an RF surveillance response signal that triggers an alarm. If the customer has removal authorization as the result of paying for the article, the transponder tag is reprogrammed to modify the operational data stored therein. The operational datatypically includes data to alter the frequency of an RF response signal generated by the transponder tag, the frequency of an RF excitation signal to which the transponder tag responds, and/or the type of modulation used by the transponder tag to generate an RF response signal. Sales data, such as the purchase price and date of purchase, is also stored in the transponder tag. When the customer exits the sales outlet after the transponder tag is reprogrammed, the transponder tag does not generate the RF surveillance response signal that triggers the alarm. However, the sales data stored in the transponder tag can be accessed by the clerk of the sales outlet at a later date.
Patent CA-2213932-A1 (CA)
Title: Rotor supercharger with oil slit for vibration damping
Inventor: BECKER KARL-HELMUT
IPC: F16C35/077
Filed: 1997-08-25
Abstract: Apparatus for vibration damping a rotor rotatably supported in a stationary housing by a bearing whose retainer housing is concentrically engaged in the stationary housing in an axial position by elastic elements. In order to avoid or reduce vibrations produced by rotation of the rotor particularly resonance vibrations, an oil space is formed between the stationary housing and the bearing retainer which is sealed at its ends by axially spaced sealing rings. An inlet channel is provided in the stationary housing for supplying oil under pressure into the space and outlet channels for the oil are formed in the bearing retainer in the vicinity of the sealing rings. The oil discharge channels are provided with constricted regions whose flow cross-sections and lengths are related to the flow cross-section of the oil inlet channel such that the oil discharge channels act as chokes or throttles.
Patent CA-2214037-A1 (CA)
Title: Method of making camptothecin and camptothecin analogs
Inventor: BAEVSKY MATTHEW F
IPC: C07D213/64
Filed: 1991-12-18
Abstract: Compounds of Formula I (see formula I) are made in accordance with the following scheme: (see formula II) wherein R may be loweralkyl; R1 may be H, loweralkyl, loweralkoxy, or halo; R2, R3, R4, and R5 may each independently be H, amino, hydroxy, loweralkyl, loweralkoxy, loweralkylthio, di(loweralkyl)amino, cyano, methylenedioxy, formyl, nitro, halo, trifluoromethyl, aminomethyl, azido, amido, hydrazino, or any of the twenty standard amino acids bonded to the A ring via the amino-nitrogen atom; Y is H and W and X are halogen. Also disclosed are novel processes for making starting materials for the scheme given above, and novel intermediates employed in these processes.
Patent CA-2214169-A1 (CA)
Title: Unconsolidated formation stimulation and sand migration prevention methods
Inventor: ABASS HAZIM H
IPC: C09K8/62
Filed: 1997-08-27
Abstract: The present invention provides methods of stimulating fluid production while preventing the migration of sand with produced fluids from an unconsolidated subterranean formation penetrated by a well bore. The methods basically comprise the steps of creating one or more fractures in the formation, injecting a hardenable resin composition into a portion of the formation through which the fractures extend whereby the portion of the formation is consolidated into a hard permeable mass and depositing proppant in the fractures to maintain the fractures open.
Patent CA-2214950-A1 (CA)
Title: Electronic gas meter
IPC: G01F15/04
Filed: 1997-09-09
Abstract: According to the present invention, there is provided an electronic device for correcting a volume indicated by a gas meter, the device comprising pulse input means, connected to the gas meter for receiving pulses, means for determining a rough uncorrected volume from the pulses, means for determining a flow rate from the rough uncorrected volume and the frequency of pulses, memory means for storing a tablecomprising a plurality of meter factors each factor being indicative of a respective percentage of a maximum flow rate for the meter, means for calculating an uncorrected volume by multiplying an an appropriate meter factor with the rough uncorrected volume such that the uncorrected volume is indicative of an uncompensated flow rate through the meter.