baber/WOPTO huggingface dataset:
Patent CA-2113271-A1 (CA)
Title: Dither generation for ring laser gyroscopes
Inventor: MILES DENNIS JOHN
IPC: G01C19/70
Filed: 1992-07-09
Abstract: A navigation system comprising an RLG (6), means for inducing an oscillatory phase change in the output of the laser of the RLG  which simulates an oscillatory dither whose amplitude is in excess of the sum of a defined lock-in range and a defined, narrower control zone, and means (3) for activating said oscillatory dither when the rotation rate applied to said RLG is within said control zone but to apply to the laser output a dither fixed at its full amplitude in the sense of the rotation rate applied to the RLG  whenever said rotation rate is outside said defined control zone.  Means (9) are preferably provided for applying to the laser output a dither output fixed at its full amplitude in the opposite sense and for the same period as a fixed dither output has previously been applied, provided that the applied rate is not outside said control zone in the original sense. The invention preferably includes means for reinstating oscillatory dither when the applied rate exceeds a higher control rate limit defined in both senses of rotation.
Patent CA-2114784-A1 (CA)
Inventor: TURNER EDWIN C
IPC: E21B33/076
Filed: 1994-01-31
Abstract: ABSTRACT The bore selector includes a housing with an upper end having at least a first bore and a lower end with at least second and third bores.  The housing includes a central bore extending between the upper and lower ends.  A tube has its upper end connected to the first bore and its lower end adjacent the second and third bores.  A yoke having an aperture therethrough for passing the tube, is reciprocably mounted with the bore of the housing.  The yoke includes cam slots receiving guide lugs projecting from the sides of the tube.  A hydraulic actuating means is also mounted in the lower end of the housing for reciprocating the yoke whereby as the yoke is reciprocated within the housing, the guide lugs move within the cam slots to shift the lower end of the tube between the second and third bores.  A cage is mounted within the lower end of the housing to ensure alignment and sealing engagement between the lower end of the tube and the face of the housing around the second and third bores.
Patent CA-2114956-A1 (CA)
Title: Vehicle speed control system with adaptive learning
Inventor: OO KAH S
IPC: B60K31/04
Filed: 1992-07-30
Abstract: A speed controller maintains the engine throttle at a desired throttle position based upon an initial throttle position and a speed error signal. The initial throttle position is generated by multiplying vehicle speed by a constant and adding an offset value related to throttle position at idle and speed control slack. The initial throttle position is adaptively updated by subtracting the above product from actual throttle position during speed control operation to learn a new offset value.
Patent CA-2115177-A1 (CA)
Title: Laparoscopic starter scalpel
Inventor: NEWMAN CRAIG D
IPC: A61B17/32
Filed: 1994-02-08
Abstract: ABSTRACT OF THE DISCLOSURE   A surgical scalpel capable of making a controlled depth and width incision for inserting a trocar during endoscopic surgery. The scalpel includes a handle and a shield slidably mounted on the handle between an extended position and a retracted position. When the shield is in the retracted position, a predetermined portion of a blade mounted on the handle extends beyond the end of the shield. The portion of blade extending beyond the end of the shield is correlated to theposition of the shank in the shield so that a controlled depth and width incision can be made using the portion of the blade extending beyond the end of the shield. The end of the shield, therefore, provides a means for stopping the further insertion of the blade into a cavity wall and causes a predetermined depth and width starter incision to be made.
Patent CA-2115797-A1 (CA)
Title: Optical sensor
Inventor: CAROME EDWARD F
IPC: G01N21/43
Filed: 1994-02-16
Abstract: ABSTRACT According to the present invention, there is provided an optical sensor capable of detecting, identifying or measuring a property of a solid, liquid or gas which is in contact with its measuring surface. The preferred sensor comprises an optically transparent sensing element with at least one surface, anoptical energy source, means for conducting optical energy from the source to the sensing element at a specific, precisely determined angle and a photodetector. The measuring surface of the sensing element forms an interface with the substance to be measured. Optical energy is partially reflected from the interface formed at the planar surface of the transparent element toward the photodetector. It has been discovered that the resulting signal from the photodetector is proportional to the refractive index of the medium covering the outer surface of the transparent element 6.
Patent CA-2117592-A1 (CA)
Title: N,n'-disubstituted guanidines and their use as excitatory amino acid antagonists
Inventor: WEBER ECKARD
IPC: A01N37/52
Filed: 1993-02-23
Abstract: N,N'-disubstituted guanidines exhibiting a high binding affinity to phencyclidine (PCP) receptors are disclosed. These N,N'-disubstituted guanidine derivatives act as non-competitive inhibitors of glutamate induced responses generated via the NMDA receptor by acting as blockers for the ion channel of the NMDA receptor-ion channel complex. These compounds thus exert a neuroprotective property and are useful in the therapeutic treatment of neuronal loss in hypoxia, hypoglycemia, brain or spinal cord ischemia, brain or spinal cord trauma, as well as being useful for the treatment of epilepsy, Alzheimer's disease, Amy-otrophic Lateral Sclerosis, Huntington's disease, Down's Syndrome, Korsakoff's disease and other neurodegenerative  disorders.
Patent CA-2119780-A1 (CA)
Title: 11.beta.-substituted 14,17-ethanoestratrienes, process for preparing these compounds and their use for preparing medicaments
Inventor: BOHLMANN ROLF
IPC: C07J53/00
Filed: 1992-09-24
Abstract: ABSTRACT OF THE DISCLOSURE   11.beta.-substituted 14, 17-ethanoestratrienes have general formula (I), in which R1 stands for a hydrogen atom, a C1-C12-alkanoyl group, a straight- or branched-chain C1-C12-alkyle, a C3-C7-cycloalkyle or a C4-C8-alkylcycloalkyle group; R2 stands for a hydrogen atom or a C1-C12-alkanoyl group and R3 for a grouping (A) or (B) or R4-SO-; n equals 0, 1 or 2; and R4 and R5 represent independently from each other a hydrogen atom or a straight- or branched-chain C1-Ca-alkyle group that may also be partially fluorinated.  Also disclosed are a process for producing these compounds, pharmaceutical preparations containing these compounds and their use for producing medicaments.
Patent CA-2120692-A1 (CA)
Inventor: DOPPSTADT WERNER
IPC: B02C13/09
Filed: 1994-04-06
Abstract: The comminuting machine includes a housing provided with a rotary impact mechanism. A conveyor conveys infed material to the rotary impact mechanism which cooperates with an impact plate in disintegrating the infed material. A first comminuting grate follows the impact plate in the rotary direction and is arranged laterally of the rotary impact mechanism. A second comminuting grate is arranged below thereof. Both comminuting grates constitute arcuate plates with throughpass openings and cooperate with the rotary impact mechanism in forcing the infed material through grate openings with further comminution. Adjusting devices are associated with the comminuting grates for adjusting the same relative to the rotary impact mechanism.
Patent CA-2120719-A1 (CA)
Title: Disposable tray sump foamer, assembly and methods
Inventor: COOK ROBERT PAUL
IPC: B65D83/76
Filed: 1993-08-24
Abstract: A biological agent growth-limiting and cross contamination suppressing foaming assembly (10). The foaming assembly (10) comprises a disposable foamable-liquid transport and foaming cartridge (40) and a housing (70) cooperatively used with the cartridge to produce and dispense foam from the cartridge. The cartridge comprises a low-cost package comprising a molded tray (300) which provides cavities (e.g. 314, 316, 328, 348, 350, 354, 356, 358, 362) for liquid containing chambers, air and liquid communicating channels, and initially sealed but frangible ports and a liquid impervious sheet (302) which covers a face of the tray to seal otherwise open portions of the chambers, channels and ports. The housing comprises a vertical wall mounting plate (60), a cartridge-accommodating and servicing cover (72) hingeably affixed to the mounting plate, a pump (30) which provides pressurized gas to produce the foam within the cartridge, and sharpened stems or shafts (284, 294) to open the frangible ports. Foamable-liquid is stored within the cartridge during shipment, foamed within the cartridge under pressure from the pump, and dispensed as a foam from a spout (40) which is a part of the tray.
Patent CA-2122034-A1 (CA)
Title: New drug formulations with ion-exchangers
Inventor: HILLGREN ULF BERTIL
IPC: A61K47/48
Filed: 1992-10-16
Abstract: The invention relates to the use of, and methods to obtain, ion exchanger complexes with psychotropic drugs for reducing toxic side effects and lethality when overdosing the drug. The invention includes methods and compositions for modifying the total amount of drug released from the complex in the gastro-intestinal tract by adding a substance which affects the ion exchange process.
Patent CA-2122279-A1 (CA)
Inventor: INOUE JUN
IPC: B08B3/02
Filed: 1994-04-27
Abstract: While a portal frame is reciprocated longitudinally of a vehicle body to be washed, a lifting/lowering drum is lifted/lowered to allow an upper nozzle to follow the outer surface of the vehicle body with a predetermined distance and the upper nozzle is laterally moved to inject a washing liquid therefrom, side nozzles are lifted/lowered to inject a washing liquid on the side surfaces of the vehicle body therefrom.  In the first going operation of the portal frame, a plurality of photo-sensors disposed vertically which are provided on the front portion of the portal frame detects the vehicle body and information from the photo-sensors is stored in time sequence to perform a comparative operation with the previously set information, thereby controlling the movement of the portal frame, lifting/lowering of the lifting/lowering drum, the lateral movement of the upper nozzle and lifting/lowering of the side nozzles according to each portion of the vehicle body.
Patent CA-2122461-A1 (CA)
Title: Parking mechanism for a power transmission
Inventor: KINSEY KYLE KENNETH
IPC: F16H63/34
Filed: 1994-04-28
Abstract: A countershaft type power transmission has a plurality of selectively engageable friction clutches for establishing a plurality of forward drive ratios and a reverse drive ratio between meshing gear members on an input shaft, a countershaft and an output shaft. One of the power paths established by the meshing gears includes a gear member rotationally fast on the output shaft.  A parking pawl member is selectively engageable with this gear member to prevent output shaft rotation when parking is desired.  The pawl has teeth formed thereon having a profile which permit continuous simultaneous engagement between two teeth on the pawl and two teeth on the gear member regardless of the rotational bias imposed on the output shaft during parking.
Patent CA-2122699-A1 (CA)
Title: Method and apparatus for production of metal granules
Inventor: SAXENA SURENDRA K
IPC: B22F9/10
Filed: 1994-05-02
Abstract: ABSTRACT            Reactive  metal  granules,  especially  of  magnesium  and/or magnesium alloys are produced directly from molten metal. The metal is fed under pressure to a granulation nozzle which forces the metal to aquire a circular motion of increasing velocity before  it  reaches  the outlet  of  the nozzle and disintegrates successively into small fragments and droplets. These fragments and droplets are formed in an inactive gas atmosphere in an enclosed system and are thereafter solidified and cooled in a nonoxidizing cooling bath. An apparatus is also described with a granulation chamber made up of to parts (1,2) which could be fitted to each other at various positions with an air tight locking system (3).
Patent CA-2124798-A1 (CA)
Title: Absorbent article having fused layers
Inventor: REISING GEORGE STEPHEN
IPC: A61F13/15
Filed: 1992-11-06
Abstract: An absorbent article, such as a diaper, sanitary napkin, adult incontinent device, and the like having fused layers is provided. The absorbent article preferably comprises a liquid pervious thermoplastic apertured film topsheet, a liquid impervious backsheet, an absorbent core, and a fibrous acquisition web of spunlaced nonwoven fibers. The absorbent core is positioned between the topsheet and backsheet which are joined at least about a portion of the periphery of the absorbent article and the topsheet is fused to the acquisition web at discrete points of attachment. The acquisition web is positioned between the topsheet and the absorbent core.
Patent CA-2128246-A1 (CA)
Inventor: ESSARY WILLIAM A
IPC: C09D133/00
Filed: 1993-03-12
Abstract: A coating composition which may be water based and which is adapted for metallic substrates is disclosed, having: (1) binder resin comprising acrylic polymer having carboxy functionality, and (2) a curing agent comprising hydroxyalkylamide, wherein the ratio of hydroxy groups in the hydroxyalkylamide to carboxy groups in the binder resin is less than 0.5:1, preferably less than 0.4 to 1, and most preferably less than 0.35:1. The composition has been found to yield films exhibiting good resistance to water at high temperatures, thereby rendering them particularly suitable for use on metal food and beverage containers that are subjected to sterilization or pasteurization processes.
Patent CA-2129816-A1 (CA)
Title: Process and device for pellet-freezing pourable and flowable materials
Inventor: WEYERMANNS GUENTHER
IPC: B01J2/06
Filed: 1994-08-09
Abstract: Abstract of the Disclosure PROCESS AND DEVICE FOR PELLET-FREEZING      POURABLE AND FLOWABLE MATERIALS      The invention relates to a process and an apparatus for pellet-freezing pourable and flowable materials in a low-boiling liquified gas which is located in the interior of an insulated housing having an aperture for introducing the material to be frozen. To generate a cascade-like flow in which small drops can be frozen individually, coupled with a small surface area requirement of the immersion bath, there is, according to the invention, in the interior of the housing, a reaction tube with an agitator which is arranged at the lower end of the reaction tube, the charging device for the material to be frozen being arranged above the aperture thereof.
Patent CA-2129944-A1 (CA)
Title: Aircraft landing systems
Inventor: PARKIN DAVID
IPC: G01S1/54
Filed: 1994-08-11
Abstract: An MLS system comprising ground based equipment which includes a microwave signal transmitter arranged to feed microwave signals to radiator elements of an array antenna via phase shifter modules one of which is provided for each of the said elements, whereby the production of a scanned microwave signal beam is facilitated, signal monitor/detector means effective to provide a detected sample signal derived from the scanned beam, filter means responsive to the detected sample signals for providing a filtered signal derived in dependence upon effective sidelobe signals in the said beam, and comparator means responsive to the filtered signal for providing a transmitter shutdown signal when the filtered signal exceeds a predetermined threshold level for more than a predetermined time during a predetermined number of successive scans.
Patent CA-2130179-A1 (CA)
Inventor: GRASSE PETER B
IPC: G09F3/00
Filed: 1993-02-08
Abstract: A graphic package comprises a plurality of graphics including at least a first graphic (32) and a second graphic (34). The package further includes a dual function separating layer (40) which is intermediate the first and second graphics. The separating layer comprises a substrate having an upper surface and a lower surface. A release coating is provided on the upper surface of the substrate for releasably retaining the first graphic on the substrate and an adhesive is provided on the lower surface of the substrate for temporarily bonding the second graphic to the substrate. The graphic package may be a pad or a roll.
Patent CA-2130211-A1 (CA)
Title: System and method for passive voice verification in a telephone network
Inventor: BAHLER LAWRENCE G
IPC: G10L25/18
Filed: 1994-08-09
Abstract: A telephone long distance service is provided using speaker verification to determine whether a user is a valid user or an impostor. The user claims an identity by offering some form of identification, typically by entering a calling card number on the phone's touch-tone keypad or by a magnetic strip on the card which is read by the telephone. Unrestricted, extemporaneous speech of a group of customers are digitized, analyzed in accordance with a PCM circuit, and characterized as a non-parametric set of speech feature vectors. The extemporaneous speech of the long distance telephone service user claiming the identity of a service customer via his card number is digitized and analyzed in a like manner. The identity of the user is verified by comparing, either during or after the call, the signals in accordance with an algorithm which compares a reference utterance of a known customer with input utterances from one or more unknown telephone service users, one of which users has claimed the identity of the customer. This comparison results in a decision to accept or reject the hypothesized identity. The identity hypothesis to be tested is thus derived from the calling card of the customer.
Patent CA-2131513-A1 (CA)
Inventor: SKELTON KEVIN J
IPC: F04C19/00
Filed: 1994-09-06
Abstract: A two stage liquid ring vacuum pump having a selectively variable flow rate of service liquid through a first stage and a second stage. The flow rate through the second stage is reduced by venting service liquid from the second stage prior to normal passage through a discharge port. The vented service liquid is introduced in the first stage to enhance the pumping capacity of the first stage.
Patent CA-2131891-A1 (CA)
Title: A method of completing a telephone call in a telephone system
Inventor: BJOERNDAHL PER S
IPC: H04M3/48
Filed: 1994-01-28
Abstract: ABSTRACT OF THE DISCLOSURE      The invention relates to a method of effecting automatic callback in a mobile telecommunication system.  A calling subscriber is permanently connected to a public switched telephone network and a called subscriber is a mobile unit which moves in the public land mobile unit which moves in the public land mobile network.  A centrally located home location register keeps an account of where all mobiles registered in the mobile telecommunication network are located, with the aid of local databases, so-called visitor location registers.  The calling subscriber calls the called subscriber and finds that the subscriber is busy.  The calling subscriber then dials a code, wherewith a reference is stored in a queue in the home location register, this queue relating to the called subscriber.  When the called subscriber is free to receive a call, the calling subscriber is informed to this effect.  The calling subscriber then lifts his telephone receiver and a connection is set-up between the two subscribers.  When the called subscriber answers, the call is considered to have been connected.  The home location register then removes the reference from the queue.
Patent CA-2133879-A1 (CA)
Title: Toothbrush
Inventor: MCDOUGALL GREGORY J
IPC: A46B13/00
Filed: 1994-10-07
Abstract: ABSTRACT OF THE DISCLOSURE                       Toothbrush A toothbrush is disclosed which comprises a rotatably mounted toothbrush head, 100, a connection member, 150, for connection to a linear reciprocal drive means contained in hand-held casing and a flexible member, 160, formed preferably from steel wire or ribbon disposed between the connection member, 150, and the head, 100, and for converting linear reciprocal motion of the connection member to rotational motion of the head.
Patent CA-2133908-A1 (CA)
Title: Heating element defrosting assembly/process
Inventor: DI STAULO MICHAEL
IPC: H05B3/40
Filed: 1994-10-20
Abstract: A tool for defrosting the frozen earth for the purpose of trench excavation, bulk excavation or any excavation projects for use during winter or frozen conditions. It consists of a cable with a series of heating elements connected in parallel, the elements may be removable and the spacing between the elements may be made to vary depending on specific site conditions. This tool contains no mechanical parts subject to wear or breakage and can be left unsupervised to obtain a prepared work site for the next day. Once initially set-up it can be left unsupervised eliminating paid man-hours used in traditional methods.
Patent CA-2134928-A1 (CA)
Title: Photographic film segment flattening apparatus
Inventor: KRALLES CHRISTOPHER J
IPC: G03B27/62
Filed: 1994-11-02
Abstract: A film flattening apparatus and method of operation for a printer particularly operable in a film flattening mode for flattening image frames of filmstrip segments attached by a side attached tow web and transported through a transport path gap between the flattening apparatus and an aperture formed in a stationary film transport base. The flattening apparatus is formed of first and second clamping members suspended apart from the base in a retracted position during the web transport and moved toward the base to a contact position pressing against the longitudinal or lateral and the transverse edges of the filmstrip image frame in a film flattening mode. The first and second clamping members are formed with longitudinally and transversely extending clamping elements, respectively and are suspended apart from one another and the base in the retracted position and advance sequentially in a nested relation toward the base and the contact position in the film flattening mode. In the film transport mode, the longitudinally extending clamping elements guide against the filmstrip lateral edges and tend to flatten excessively, transversely curled filmstrip segments. The transversely extending clamping elements are positioned further apart in the transport mode and out of interference with the filmstrip segment leading ends transversely curled centrally toward the second clamping member. Preferably, the base has a thickness within which sculpted, arcuate reliefs are formed centered on the mid-point of the transverse opening edges of the aperture and provide upward guidance to filmstrip leading ends transversely curled centrally toward the aperture in the base.
Patent CA-2136012-A1 (CA)
Inventor: MCLEOD KENNETH J
IPC: A61N7/00
Filed: 1993-05-26
Abstract: An apparatus for preventing osteopenia, promoting bone tis-sue growth, ingrowth, and healing of bone tissue includes at least one rigid plate (11, 12, 31, 40, 42, 47, 50, 53, 70, 71) to support the living body, a stiffly compliant structure (13, 14, 41, 48, 48', 51, 76) engaged to the at least one plate, a dynamic force transducer (15, 15', 38, 38', 44, 44', 54, 77) engaged to the plate to vertically drive the plate. The stiffly compliant structure having a spring constant such that, in the context of the total of the mass of the plate and the mass of the plated-supported body mass, the total mass and the compliant structure exhibit a naturally resonant frequency in the range of 10 Hz to 100 Hz.   (See formula I)
Patent CA-2137343-A1 (CA)
Title: Stable foam-controlled liquid detergent compositions
Inventor: JONES ROGER J
IPC: C11D1/72
Filed: 1993-06-04
Abstract: 2137343 9325652 PCTABScor01 The present invention provides an antifoam agent for inclusion in a detergent composition in liquid form, comprising a silicone antifoam compound, a surfactant-containing solution and a particulate stabilizing aid. The present invention also provides detergent compositions comprising said antifoam agent.