baber/WOPTO huggingface dataset:
Patent CA-2076323-C (CA)
Title: Call signal generating circuit
Inventor: HIRAHARA MINORU
IPC: H04M3/02
Filed: 1992-08-18
Granted: 1996-08-13
Abstract: A call signal generating circuit includes a step-up transformer having a primary winding and secondary windings, a first switching circuit coupled between the primary winding of the step-up transformer and a D.C. power source for turning ON/OFF at a frequency higher than a frequency of a call signal which is to be generated by the call signal generating circuit, a rectifying circuit coupled to the secondary windings of the step-up transformer for rectifying voltages induced at the secondary windings into a positive polarity voltage and a negative polarity voltage, a second switching circuit coupled to the rectifying circuit for alternatively outputting the positive polarity voltage and the negative polarity voltage with a quiescent time in which both the positive and negative polarity voltages are not output, a capacitor coupled to the second switching circuit for receiving the positive and negative polarity voltages output from the second switching circuit, a resistor coupled to the capacitor, a third switching circuit for discharging the capacitor during the quiescent time, where the resistor and the third switching circuit are coupled in series to form a series circuit which is coupled in parallel to the capacitor, and a pair of output terminals coupled to the capacitor for outputting the call signal.
Patent CA-2090618-C (CA)
Title: High efficiency liquid/liquid hydrocyclone
Inventor: KALNINS CHARLES M
IPC: B01D17/038
Filed: 1991-08-27
Granted: 2001-10-23
Abstract: A high efficiency small diameter hydrocyclone (12) for separating liquid/liquid ocnstituents of a mixture. An effective se-paration portion L e of the hydrocyclone separation chamber begins at a small diameter throat D (28) where acceleration and velocity of the mixture cease to increase. This effective portion L e ends at the underflow outlet (16) from the separation chamber, and has an area to volume ratio that falls within certain limits to thereby promote efficient separation of the mix-ture, particularly small diameter droplets dispersed therein.
Patent CA-2092724-C (CA)
Title: Method and apparatus for detecting credit/debit cards in connection with the processing of bulk mail
Inventor: LILE WILLIAM R
IPC: B07C3/16
Filed: 1993-03-12
Granted: 2003-06-17
Abstract: envelopes with unspecified contents are inspected by a "magnetic imaging" device which operates to identify magnetic indicia associated with the contents of the envelopes in order to identify the orientation of contents within the envelopes and/or to identify magnetic indicia indicative of the magnetic stripe of a credit/debit card or its remnants, an addition to a second detection device (e. g., a thickness measuring device or a metal detecting device) which can then verify whether the indicia indicative of a magnetic stripe signify the presence of a credit/debit card or some other stimulus such as a paper clip or the like. Similar assurances can be provided by employing a thickness measuring device and a metal detecting device, in operative combination (with or without the addition of a magnetic imaging device). Alternatively, the magnetic imaging device may be deleted in favor of a thickness measuring device which, through additional processing, operates to remove subsequent analyses from the time domain in order to achieve a more reliable determination of the contents of an envelope, in less time. Such techniques are applicable to the detection of credit/debit cards contained within 'the envelopes which are to be processed, as well as the detection of other articles which such envelopes might contain, such as folded documents and the like.
Patent CA-2096293-C (CA)
Title: Alkene carboxylic acid derivatives, method of preparation thereof and pharmaceutical compositions containing them
Inventor: LAVIELLE GILBERT
IPC: C07D211/58
Filed: 1993-05-14
Granted: 1999-03-23
Abstract: Compounds of formula (I): <IMAGE>  in which:   R1 and R2, which are identical or different, represent a linear or branched (C1-C6)alkyl radical, a substituted or unsubstituted phenyl radical, a pyridyl radical or a thienyl radical, or form, with the carbon atom to which they are attached, a substituted or unsubstituted (C4-C7)cycloalkyl ring,   R3 represents     - a substituted or unsubstituted phenylsulphonyl radical,   - a linear or branched (C1-C6)alkyl radical,   - an alkylaminocarbonyl radical,   - or a linear or branched (C1-C6)acyl radical,     R4 represents any one of the radicals:  -CH=CH-(CH2)p-CO2H or -CH2-CH2-(CH2)p-CO2H  in which p is equal to 0, 1, 2 or 3,   n and m, which are identical or different, represent 0, 1 or 2, their isomers, enantiomers, diastereoisomers and epimers as well as their addition salts with a pharmaceutically acceptable acid or base.   The compounds described in the present invention possess antithromboxane A2 properties both as antagonists of thromboxane A2 (TxA2) receptors and as inhibitors of the activity of the enzyme responsible for the synthesis of thromboxane A2: thromboxane A2 synthase.
Patent CA-2104584-C (CA)
Inventor: EVANS THOMAS W
IPC: B01D24/14
Filed: 1991-02-28
Granted: 2000-08-08
Abstract: Elément de tamis allongé utilisé, sous différentes formes, dans un réacteur, ou comme drainage inférieur dans un système de filtrage par gravité. Cet élément présente, dans un sens perpendiculaire à son axe, une section transversale dont la largeur est égale à au moins deux fois la hauteur. On décrit également un procédé de fabrication de ce tamis, consistant à comprimer les côtés opposés d'un tamis cylindrique à fil sous gaine entre une paire de plaques dont les rayons de courbure sont différents l'un de l'autre et supérieurs au rayon de courbure du tamis cylindrique.
Patent CA-2107346-C (CA)
Inventor: BAXI INDRA R
IPC: B29C45/17
Filed: 1992-04-01
Granted: 2000-07-18
Abstract: An apparatus for injecting a viscous fluid, such as a thermoplastic, and a non-viscous fluid, such as a gas, into a mold cavity (116) of a mold body (B) includes a nozzle body (10) having an inlet end (12), a discharge end (14) and a flow passage (40, 28) for the viscous fluid extending from the inlet end to the discharge end. A  valve element is mounted for reciprocation in the nozzle body flow passage to control the flow of the viscous fluid through the nozzle body discharge end. The valve element includes a barrel (50) having a first end selectively engaging a portion of the nozzle body discharge end to prevent a flow of viscous fluid therepast and a second end. A bore (62) extends longitudinally through the barrel. A pin (80) is located in the barrel bore. The pin has a first end (82) located adjacent to the barrel first end and a second end (84) secured to the nozzle body such that the pin remains stationary as the barrel reciprocates in the nozzle body. A non-viscous fluid flow passage (86) is defined between the pin and the barrel.
Patent CA-2109363-C (CA)
Inventor: ITOH HIROSHI
IPC: G05B19/19
Filed: 1993-10-27
Granted: 1997-02-25
Abstract: High-speed, high-precision course control can be performed without increasing the loop gain of each control system.  A target value for moving a controlled object as a reality axis by a desired amount is produced.  A virtual target value for moving a virtual controlled object as a virtual axis based on the reality axis is also produced.  A control input and a virtual control input which optimize a predetermined first evaluation function are calculated upon reception of the produced virtual target value, the produced target value, a virtual state amount from the virtual controlled object, a state amount from the controlled object, a first disturbance signal with respect to the virtual controlled object, and a second disturbance signal with respect to the controlled object.  The calculated control input and the calculated virtual control input are input to the virtual controlled object and the controlled object, respectively.
Patent CA-2110145-C (CA)
Title: Methods and apparatus for correcting customer address lists
Inventor: MOORE WAYNE D
IPC: G06F17/00
Filed: 1993-11-26
Granted: 1998-03-03
Abstract: Apparatus for correcting a list of addresses comprising, computer structure, structure for storing a database of postal addresses in the computer structure, structure for storing a list of shipping addresses in the computer structure, the computer structure programmed for determining whether each address stored in the shipping list storing structure and which was not previously compared to any address stored in the database storing structure compares to any address stored therein, the computer structure programmed for determining whether each postal address to which any shipping list address compares is a post office box postal address, and the computer structure programmed for storing in the shipping list storing structure said each postal address which is not a post office box postal address.
Patent CA-2112588-C (CA)
Title: Fuzzy retrieval apparatus and method, and apparatus for creating membership functions
Inventor: HAYASHI MOTOJI
IPC: F16H29/02
Filed: 1992-09-29
Granted: 1998-10-13
Abstract: Data stored in a data base (21) includes crisp numbers expressed by definite numerical values, fuzzy numbers expressed by attaching "about" to numerical values, and fuzzy labels represented by fuzzy language.          Status codes are used to distinguish these types of data, and data is stored in the data base (21) upon attaching the status codes thereto.  Membership function data accessed using data and the status codes attached thereto is stored in a fuzzy data dictionary (22).  When a retrieval condition has been given, data related to this retrieval condition is retrieved in the data base (21).  If this data is data involving a fuzzy concept, the membership function data corresponding to this data is extracted from the fuzzy data dictionary (22).          Fuzzy-retrieval execution means (20) calculates the degree of membership of the membership function data with respect to the retrieval condition and outputs the result through an output unit (24).
Patent CA-2114427-C (CA)
Inventor: TESCH GUENTER
IPC: D05C17/02
Filed: 1993-05-25
Granted: 1997-05-13
Abstract: A process for producing a needled, or sewn multi-layered  carpet  is  described  in which  an intermediate layer  (6)  containing  thermoplastic  film  material  is arranged between a layer of backing (5) and a top layer (7).  The three layers are bonded together into a carpet by means  of  a process  of needling or  sewing  through fibers  (9).   The intermediate layer  (6)  is formed by lumpy,  three-dimensional plastic film material  (8),  and-the needled fibers are tightly integrated into the inter-mediate layer (6) by the influence of temperature.
Patent CA-2119073-C (CA)
Inventor: NAGATANI YUJI
IPC: H04L69/40
Filed: 1994-03-15
Granted: 1998-05-05
Abstract: A data transmission system for an automotive vehicle includes a plurality of control units installed on the vehicle, and a transmission line connecting the plurality of control units with each other.  The transmission line is comprised of a pair of signal lines to which digital data signals having opposite polarities are delivered for transmission of data.  Each of the plurality of control units comprises a first receiver for receiving both of the digital data signals having opposite polarities and outputting a first difference signal indicative of a difference between the digital data signals, a second receiver for receiving one of the digital data signals and outputting a second difference signal indicative of a difference between the one of the digital data signals and a predetermined reference level set thereto, and a third receiver for receiving the other of the digital data signals and outputting a third difference signal indicative of a difference between the other of the digital data signals and a predetermined reference level set thereto.          Detecting which of the pair of signal lines is faulty, is carried out based on the first difference signal output from the first receiver, the second difference signal output from the second receiver, and the third difference signal output from the third receiver.
Patent CA-2121082-C (CA)
Title: Vertical and horizontal positioning and coupling of automatic tray processor cells
Inventor: PATTON DAVID LYNN
IPC: G03D3/02
Filed: 1994-04-12
Granted: 1998-08-18
Abstract: A low volume photographic material processing apparatus, that utilizes a plurality of processing modules, that have a narrow horizontal processing channel.  The processing modules may be arranged in either a horizontal or a vertical direction to solve the space constraints and the rigidity of prior photographic processor designs.
Patent CA-2121707-C (CA)
Title: Chain conveyor with frictionally driven recirculated pallets linked together in sub groupings
Inventor: GYGER JACK DOUGLAS
IPC: B65G21/12
Filed: 1994-04-20
Granted: 1998-09-15
Abstract: A chain conveyor is described having a pair of loops of triple strand chains,  frictionally driving pallets supported on upper advance runs, the pallets linked together in subgroups to be able to support long length workpieces. The pallets are driven around the chain loop sprockets at either end of the conveyor, the linked connection allowing relative tilting of the pallets in the subgroup as each subgroup is driven around the sprocket axes.  The pallets are held as they are swung around either sprocket axis by a split disc gripper mechanisms which each grip a tapered edge gripper bar mounted spaced below the pallet.   A pair of ride bars are also mounted below the pallet, each having a rounded shoulder at either end engaging a chain loop across the inside curvature of the chain loop when passing around the sprockets.   The rounded shoulders nonpositively engage the chain link rollers so that the pallets are not positively fixed to the chain loops when swung around the sprocket axis at either end.  An overhead form of the conveyor has workpiece hangers depending from each pallet during movement down the lower run, with workpiece suspended therefrom, the upper run being the return run in that embodiment.
Patent CA-2127895-C (CA)
Title: Process for the preparation of 2-h-heptafluoropropane
Inventor: FRANZ RAIMUND
IPC: C07C17/087
Filed: 1994-07-13
Granted: 2004-10-26
Abstract: The invention relates to a process for the preparation of 2-H-heptafluoropropane, wherein hexafluoropropene is reacted with hydrogen fluoride in the presence of a weakly basic ion exchanger whose reactive centers comprise tertiary amino groups.
Patent CA-2128311-C (CA)
Inventor: GESEMANN HANS-JUERGEN
IPC: H01L41/43
Filed: 1994-07-18
Granted: 1999-09-28
Abstract: A process for producing PZT films on a substrate by thick-film technique in which the PZT films contain simply modified PZT and/or PZT with complex perovskite. PZT with a Zr content X of X ~ X p + 0.02 ~ X p + 0.10 is used, where X p is the Zr content of the base composition at the morphotropic phase boundary determined by the maximum coupling factor K ~.
Patent CA-2130988-C (CA)
Title: Pharmaceutical composition for treatment of sudden deafness
Inventor: KANEMARU SHINICHI
IPC: A61K45/06
Filed: 1994-08-26
Granted: 2000-06-06
Abstract: An interferon is administered singly or in combination with other pharmacological agents to patients with idiopathic sudden sensorineural hearing loss, whereby the patients are remarkably improved.
Patent CA-2131107-C (CA)
Inventor: KOMATSU KOHEI
IPC: F16B25/00
Filed: 1994-08-30
Granted: 2003-11-18
Abstract: A wood column-beam joint structure using lag screw bolts for joining a wood column member and wood beam members is disclosed. The lag screw bolts consisting of a lag screw section are screwed into the column member and both bolt sections provided at its ends are protruded beyond the side faces of the column member. Head sections of T-shaped gusset plates made of steel plate are fastened to the protruded bolt sections of the lag screw bolts by means of nuts and leg Sections of T-shaped gusset plates are fitted into slits provided at one end of each of the wood beam members. Drift-pins are fitted into the small holes provided in the leg sections of T-shaped gusset plate and the small through holes provided in the beam members corresponding thereto, thereby securing the leg sections of the T-shaped gusset plates and the wood beam members.
Patent CA-2131703-C (CA)
Title: Compositions and methods for the identification and synthesis of sialyltransferases
Inventor: PAULSON JAMES C
IPC: C12P21/02
Filed: 1993-03-09
Granted: 2007-08-21
Abstract: DNA isolates coding for sialyltransferase which contain a conserved region of homology and methods of obtaining such DNA are provided, together with expression systems for recombinant production of sialyltransferase.
Patent CA-2134230-C (CA)
Title: Method and apparatus for coherent communication in a spread-spectrum communication system
Inventor: FUYUN LING
IPC: H04B1/707
Filed: 1994-02-16
Granted: 1999-09-21
Abstract: A method and apparatus is provided for encoding and decoding to facilitate coherent communication. In encoding, reference symbols are inserted into a stream of input data symbols (110) to form a reference coded stream of input data symbols (114). Subsequently, the reference coded stream of input data symbols are prepared for transmission over a communication channel by spreading the reference coded stream of input data symbols with a spreading code prior to transmission over the communication channel. In decoding, a received communication signal (120) is despread with a spreading cede to derive a stream of reference samples (132) and a stream of data samples (138). The channel response is estimated by utilizing the stream of reference samples (132). Finally, an estimated data symbol is detected from the stream of data samples (138) by utilizing the estimated channel response.
Patent CA-2134781-C (CA)
Inventor: JOURQUIN LUCIEN
IPC: B32B27/40
Filed: 1993-05-18
Granted: 1999-10-05
Abstract: Dans le procédé décrit par l'invention, on fabrique, dans une première étape, sur une surface de moulage (1), une couche en élastomère de polyuréthane, de façon à obtenir une peau en polyuréthane (5). Dans une deuxième étape, on applique contre la peau en polyuréthane (5) un mélange réactionnel, de façon à obtenir une couche en mousse de polyuréthane (6). Dans une troisième étape, on applique contre la couche en mousse de polyuréthane (6) un mélange réactionnel approprié de polyuréthane ou de polyisocyanurate, de façon à obtenir un support synthétique rigide (8). Ceci permet de fabriquer un élément synthétique de garniture intérieure d'automobile plus facile à recycler. De plus, le procédé facilite le processus de fabrication.
Patent CA-2138097-C (CA)
Inventor: MOWRY WILLIAM H JR
IPC: B42D25/29
Filed: 1994-12-14
Granted: 2000-05-23
Abstract: A security document according to the present invention includes a document substrate having a surface for receiving printed indicia. A half tone warning image is printed on first areas of the surface and a half-tone background image is printed in second areas surrounding the first areas. The half-tone a warning image includes at least one word indicating a status of a copy of the document. A camouflage image extending over the document surface for confusing the eye of an observer such that said warning image is not readily observed. The camouflage image includes at least one word indicating to an observer a status of the original document.      One of the half-tone warning image and the half-tone background image are printed with half-tone elements of such a line spacing and element size that it is not readily reproducible by a photocopier. As a consequence, the half-tone warning image becomes apparent on photocopies of the original document.
Patent CA-2139527-C (CA)
Inventor: SHIH JUI-YUAN
IPC: A61C19/055
Filed: 1995-01-04
Granted: 1999-05-11
Abstract: The present disclosure relates to a method and  an apparatus  for  recording  and  reproducing  the  path  of insertion  of  a  cast on surveyors.  In  the  method,  the accuracy  and speed of recording the path of  insertion  is easily  effected  with  the help of a scoring tool  and  an adjustable  surveyor table on which a cast is  secured  and the  spatial relationship of the cast with respect  to  the scoring tool can be easily adjusted,  facilitating parallel line making on the cast in one aspect and the reorientation of the cast in another aspect.
Patent CA-2144332-C (CA)
Inventor: ETTEL VICTOR ALEXANDER
IPC: H02J7/10
Filed: 1993-07-14
Granted: 1996-12-31
Abstract: A battery charger is provided which automatically controls the charging process independent of individual battery con struction or temperature. Control of the charging process is achieved by periodically interrupting the charging current, determin-ing resistance-free voltage of the battery in fixed intervals after interruptions of current, and comparing the resistance-free voltage with a reference voltage. Reference voltage is automatically determined for each recharging subject by analyzing the change in re-sistance-free voltage with respect to time during an initial, constant current period to locate certain characteristic points indicative of the onset of overcharge. The charging current is reduced as necessary, so that the resistance free voltage does not exceed the reference voltage and significant overcharge is avoided.
Patent CA-2146375-C (CA)
Inventor: KEWIN DANIEL D
IPC: B65D85/66
Filed: 1995-04-05
Granted: 2005-03-29
Abstract: A packaged roll of paper or other sheet material has a protective sheet of material wrapped around the circumference of the roll with overlapping longitudinally-extending edge portions secured together. The said protective sheet extends beyond the roll at opposite ends to provide projecting protective sheet portions which are crimped radially inwardly over the outer annular portions of the ends of the roll and a header assembly is located internally of the crimped over projecting protective sheet portion at at least one end of the roll. The header assembly has a header body with a generally circular periphery with a diameter substantially equal to the diameter of the roll, the header body having a circumferentially extending portion adjacent the periphery of increased thickness relative to the central portion thereof located between the crimped over protective sheet portion and the end of the roll to protect the radially outer portion of the end of the roll from damage by the crimped over projecting protective sheet portion.
Patent CA-2148182-C (CA)
Inventor: CHEUNG NELSON
IPC: F03B17/06
Filed: 1995-04-28
Granted: 2000-07-11
Abstract: A rotary apparatus, such as a pneumatic motor, is disclosed.  The rotary apparatus comprises an end plate having a race cavity, a main rotor with a stub shaft extending from one end, and a bearing, which includes an outer race seated in the race cavity and an inner race having a central bore.  The stub shaft is fitted into the central bore with a frictional fit.  In a preferred embodiment, the threaded shank of a screw is threaded into a threaded socket in the stub shaft so as to draw the stub shaft into the central bore with a washer bearing against the screw head, against the stub shaft, and against the inner race, whereby a controlled gap is provided between an outer surface of the main rotor and an inner surface of the end plate.  In an alternative embodiment, a threaded nut is threaded onto a threaded stud extending from the stub shaft so as to draw the stub shaft into the central bore with a washer bearing against the threaded nut, against the stub shaft, and against the inner race, whereby the controlled gap is provided.  Also, a related method for assembling the rotary apparatus is disclosed, in a preferred mode for assembling the preferred embodiment and in an alternative mode for assembling the alternative embodiment.