baber/WOPTO huggingface dataset:
Patent CA-2061115-C (CA)
Title: Advanced proof-of-rotation switch
Inventor: JONES ROBERT E
IPC: F23N3/08
Filed: 1992-02-12
Granted: 1996-02-27
Abstract: A HVAC system (10) employs a gas valve (20) to supply gas for combustion within a heating portion (12) of the system.  An exhaust (22) removes combustion products using a motor (28) driven exhaust fan (24).  An apparatus (34) controls combustion and uses a sensor (36) for sensing the rotational speed of a motor shaft (26).  A switch (T1) is responsive to sensed motor speed to open and close the valve, the valve being opened only if the motor is operating within a predetermined speed range.          A first speed discriminator (48A) enables of the switch to open the valve when the motor speed exceeds a first predetermined value.  A second speed discriminator (48B) disables the switch to close the valve when motor speed exceeds a second and higher predetermined speed which is indicative of a blocked exhaust, or a fan blade is loose.  This latter action insures that a build-up of potentially dangerous exhaust gases cannot occur.
Patent CA-2061701-C (CA)
Title: Electric power supply for use downhole
Inventor: SCHULTZ ROGER L
IPC: F02C1/02
Filed: 1992-02-20
Granted: 1999-08-10
Abstract: A downhole electrical pawer supply apparatus has a high fluid pressure source zone and a low fluid pressure discharge zone each defined at least partially within the apparatus. A fluid powered engine provides rotational mechanical output and is powered by fluid flowing from the source zone through the engine to the discharge zone. An electrical powered generator converts the rotational mechanical output of the engine into electrical output.
Patent CA-2065075-C (CA)
Title: Method and apparatus for the cross-sectional measurement of electric insulated conductors
Inventor: SALZMANN HANNES
IPC: G01B15/00
Filed: 1992-04-03
Granted: 2002-01-29
Abstract: A method and an apparatus for an exact measurement of the thickness of a plurality of individual semi-conductor and insulation layers and the determination of the centricity/eccentricity of a medium-voltage and/or high-voltage insulated conductor. The individual semi-conductor and insulation layers of the insulated conductor emerging from an extrusion device are penetrated with X-rays in at least two directions laying within a plane orthogonal to the axis of the insulated conductor. On carrying out in-line scanning intensity detection of the X-rays having penetrated the insulated conductor, the thickness of the individual layers as well as the position of the conductor is computed. These values are compared with target ones, and, if necessary, the position of the extruder heads can be corrected accordingly.
Patent CA-2073311-C (CA)
Title: Magneto-optical recording medium whereon recording is carried out with an overwriting function
Inventor: TAKAHASHI AKIRA
IPC: G11B11/10
Filed: 1992-07-07
Granted: 1997-03-18
Abstract: A magneto-optical recording medium is consisted of a recording layer, a readout layer and a writing layer.  The readout  layer  is  made  of  rare  earth-transition metal alloys wherein an easy magnetization axis is parallel to the recording layer at room temperature,  and the  easy magnetization axis is perpendicular to the recording layer as the temperature of the readout layer is raised above a predetermined temperature by irradiating thereon with a light  beam.   The  writing   layer  is   made  of   rare earth-transition metal alloys having such coercive force that a magnetization direction thereof is switched by an external magnetic  field at  room temperature  and  Curie temperature  that  is  above  Curie  temperature  of  the recording   layer.    With  the  above  arrangement,   an overwriting function can be achieved by adjusting a light intensity of the light beam so that the temperature falls within the range between the Curie temperature of  the writing layer and the Curie temperature of the recording layer,  or  above  the  Curie  temperature  of  the writing layer.
Patent CA-2073320-C (CA)
Title: Magneto-optical recording medium
Inventor: NAKAYAMA JUNICHIRO
IPC: G11B11/105
Filed: 1992-07-07
Granted: 1996-12-03
Abstract: A magneto-optical  medium  has  a  substrate  through which  a  light  beam  is  transmitted  and  a  recording-reproduction  layer.   The  recording-reproduction  layer, which exhibits an in-plane magnetization characteristic at the first temperature while still containing magnetization components in the perpendicular direction corresponding to information,    comes   to   exhibit   a   perpendicular magnetization characteristic above the second temperature higher   than   the   first   temperature.     In   this magneto-optical   recording   medium,    information   is reproduced by utilizing a temperature distribution of the recording-reproduction    layer    being    subjected    to irradiation of a light beam and by raising the temperature of a portion within a light spot of the light beam from the first temperature to the second temperature.
Patent CA-2074875-C (CA)
Title: Ink jet recording method
Inventor: MATSUBARA MIYUKI
IPC: H04N1/191
Filed: 1992-07-29
Granted: 2000-02-15
Abstract: Image data is thinned out by using thinning patterns having arrays not synchronized with an image data array according to an area gradation method at the same duty, and the resulting thinned image data is divisionally recorded on a predetermined area of a recording medium by using different record areas of a recording head while a scan operation is performed a plurality of number of times. The thinning patterns are formed such that substantially equal quantities of an ink are implanted in a plurality of number of times of the divisional recording.
Patent CA-2078077-C (CA)
Title: Centralized security control system
Inventor: MCNAIR BRUCE E
IPC: G07C9/00
Filed: 1992-09-11
Granted: 1998-01-27
Abstract: A central security control system (security system) interfaces between a plurality of requesters and a plurality of destinations such that it receives from the requesters requests for access to the destinations  and communicates to the destinations a level of access that should be granted to a requester by that destination on a per request basis. In a preferred embodiment the security system also a) authenticates the requester to a predetermined level from which the level of access that is to be granted is derived and b) causes a direct connection to be established between the requester and the destination.
Patent CA-2082120-C (CA)
Title: Removable disk drive
Inventor: FASIG JONATHAN LEE
IPC: G11B33/02
Filed: 1992-11-04
Granted: 1996-09-17
Abstract: A computer system having a removable hard disk drive is disclosed. The interposer card is modified to receive a docking bay which receives a cartridge which contains a hard disk drive.  The docking bay includes the male portion of a zero insertion force connector and a first circuit board to which connects to the interposer card of the computer. The first circuit board also includes circuit paths between the male portion of the zero insertion force connector and the end which connects to the interposer card of the computer. The first circuit card also includes circuitry which allows "hot plugging" of the hard disk drive to the bus of the computer and which also acts as a lockout to prevent writing to the removable hard disk drive until after the computer system has been rebooted.  The docking bay also includes a spring mechanism for ejecting the cartridge.  A finger lever holds the cartridge in place and can be lifted to eject the cartridge.  A hard disk drive is placed within a cartridge which includes a second printed circuit board.  Attached to the second printed circuit board is the female portion of a zero insertion force connector.
Patent CA-2085747-C (CA)
Inventor: SCHAEFER JOSEPH H
IPC: F15B13/00
Filed: 1991-09-03
Granted: 1999-03-16
Abstract: Module de fluide (33) destiné à un appareil de commande de fluides (30) comportant un diaphragme interne (95) actionné par du fluide, et permettant le raccordement de plusieurs modules (31, 32 et 33) ensemble. Chacun des modules a la même configuration et il est relié à une source d'alimentation fluide principale commune (29). Les unités modulaires sont branchées ensemble à l'aide de raccords (40) à la source de fluide principale reliée par conduites à uniquement un dispositif (33) présentant un passage de fluide interne (34, 34' et 34'') acheminant le fluide à toutes les unités modulaires. Lesdites unités modulaires peuvent être reliées en une combinaison en série ou parallèle par rapport à des fluides de signalisation. Les unités modulaires suppriment le coût de l'interconnexion de différentes unités en plusieurs endroits avec différents raccords, ainsi que l'alimentation indépendante en fluide de chaque unité.
Patent CA-2092079-C (CA)
Inventor: UESUGI YASUJI
IPC: C23C2/02
Filed: 1992-07-22
Granted: 1999-08-24
Abstract: The invention provides an aluminum alloy sheet having improved formability, an elongation of at least 30%, a sliding frictional resistance of up to 0.13 and minimized surface pressure dependency of sliding frictional resistance, comprising an aluminum alloy substrate containing at least 4 wt% of Mg and a Fe rich plating layer on a surface thereof in a coating weight of 1 to 50 g/m2.      Also provided is a bake hardenable, surface treated aluminum alloy sheet having improved formability, an elongation of at least 25%, a sliding frictional resistance of up to 0.13 and minimized surface pressure dependency of sliding frictional resistance, comprising a bake hardenable aluminum alloy substrate containing Mg and Si in an amount of at least 0.4 wt% calculated as Mg2Si and a Fe rich plating layer on a surface thereof in coating weight of 1 to 50 g/m2.      By forming a zincate layer as an undercoat below the Fe rich plating layer, the plating adhesion is further improved.      The preferred Fe rich plating layer is a Fe-Zn alloy plating layer containing 20 to 80 wt% of Zn for corrosion resistance improvement. A Fe-Zn alloy plating layer containing 30 to 40 wt% of Zn meets both formability and corrosion resistance.     By further forming a layer of an inorganic compound such as alkali metal borate on the Fe plating layer, sliding frictional behavior is further improved.      The preparation of a bake hardenable, surface treated aluminum alloy sheet includes annealing at a temperature of at least 480°C before or after Fe rich plating.
Patent CA-2093027-C (CA)
Title: Plasma torch nozzle
Inventor: EVERETT JEFFREY STUART
IPC: H05H1/34
Filed: 1993-03-31
Granted: 1997-06-24
Abstract: An improved plasma torch nozzle which has a substantially barrel-shaped body having a longitudinal opening therethrough for directing the flow of gas for a plasma arc from rearward portions of the body downstream to forward portions of the body and then out of a face at the forward portions to form a plasma arc in the presence of a sufficient electrical potential difference.  The nozzle body particularly comprises a rear section for which the outer surface portions diverge with respect to the downstream direction, a center section for which the outer surface portions are cylindrical with respect to the downstream direction, and a forward section for which the outer surface portions converge with respect to the downstream direction so that the respective outer surface portions form a continuous outer surface for the nozzle body that encourages the flow of gases that is directed along the outer surface of the nozzle body to follow the outer surface and converge at the face of the nozzle body.
Patent CA-2097036-C (CA)
Inventor: SCHEIWILLER RENE
IPC: E04F15/02
Filed: 1993-05-26
Granted: 2004-09-07
Abstract: All elements are designed in a modular manner on the base of a unitary length. They include elements comprising more than one square having side lengths a and a camfered edge b at an angle of 45°. Said elements, which can be produced in the form of paving stones, or thin ceramics tiles, or trough stones and can be laid out to create floor or wall coverings, allow to lay out all letters, numbers or common symbols, as well as a great variety of other figures, and to provide them with straight-lined borderings without the need of brewing, grinding or otherwise altering a single element. It is understood that said elements can be differently colored in order to emphasize them.
Patent CA-2101325-C (CA)
Title: Cell-free and whole cell ice nucleators and process for their production
Inventor: WIGHT DAVID R
IPC: C07K14/27
Filed: 1992-02-21
Granted: 2002-10-29
Abstract: A process for producing a cell-free ice nucleator comprising the steps of: i) culturing a blebing microorganism capable of producing an ice-nucleator protein, the culturing being carried out at a first temperature promoting growth phase of the microor-ganism and being continued until stationary phase: ii) culturing the blebing microorganism, during stationary phase, at a second temperature below the first temperature effective to promote production of active cell-free ice nucleator protein; iii) separating ac-tive cell-free ice-nucleator protein from the microorganism.
Patent CA-2104597-C (CA)
Inventor: LAVINSKY JOSHUA F
IPC: G11B23/50
Filed: 1992-03-17
Granted: 2000-08-15
Abstract: A cleaner unit is provided for applying a liquid cleaning solution onto the surface of an information disk, such as a so-called compact laser disk or the like. The cleaner unit comprises a housing with a rotatable spindle adapted to support the information disk in a generally horizontal orientation, in combination with a circulation system having a rotatable pump impeller for spraying a jet of a cleaning solution onto the underside of the disk near the spindle. A drive motor is operated by a control circuit for initially rotating the spindle and impeller in a first direction for spraying the cleaning solution against the spinning disk, with the rotational disk movement causing the cleaning solution to spread radially outwardly as a film over the underside disk surface. The cleaning solution is thrown from the disk periphery and is captured by an outer contoured deflector shroud for recirculation to the pump impeller. At the conclusion of a short cleaning cycle, the control circuit reverses the direction of spindle and impeller rotation to spin the disk in an opposite or second direction for the duration of a short dry cycle, without applying cleaning solution to the disk.
Patent CA-2114471-C (CA)
Title: Optically amplified transmission systems
Inventor: TAYLOR MICHAEL GEORGE
IPC: H04B10/61
Filed: 1994-01-28
Granted: 2004-01-27
Abstract: In an optically amplified transmission system including a concatenation of optical amplifiers in the transmission path between an optical transmitter and a non-coherent receiver, the transmitter includes, in addition to a modulator for impressing data modulation, a polarisation state modulator for improving the signal-to-noise ratio at the detector.
Patent CA-2114561-C (CA)
Title: Greeting and schedule integration arrangement
Inventor: KLEIN ROBERT MICHAEL
IPC: H04M3/533
Filed: 1994-01-31
Granted: 1997-12-02
Abstract: An arrangement (FIG. 4) that automatically generates and manages a subscriber's personal greeting for a voice message system (1000), based upon information contained in the subscriber's electronic schedule database (1007), such as a calendar manager program's database, stored in a computer (1002).  The arrangement, implemented as a process on the computer, periodically converts information for the present time that is stored in the schedule database into a voicable greeting, using text-to-speech conversion facilities, and sends the greeting to the voice message system for conventional use.
Patent CA-2116791-C (CA)
Inventor: FOLEY DANIEL MICHAEL
IPC: A01B63/14
Filed: 1994-03-02
Granted: 1998-11-03
Abstract: A pair of grain drills are positional for side by side operation in the field and connected to a towing tractor by weight transfer hitch having a rear end portion connected to the grain drills and a forward tongue portion having its front end connectable to the tractor drawbar and its rearward end totally connected to the forward end of the rear hitch portion for swinging about a transverse horizontal pivot.  A hydraulic cylinder has its ends respectively connected to the tongue and the rear hitch portion and pressure to the cylinder is controlled by an adjustable pressure control valve that delivers pressurized fluid from the tractor hydraulic system to the cylinder at a pre-selected pressure below the tractor system pressure, whereby the force exerted by the cylinder on the tongue transfers a portion of the weight of the machine to the tractor drawbar.
Patent CA-2117020-C (CA)
Inventor: FALLAS DAVID M
IPC: B25J9/10
Filed: 1994-03-04
Granted: 2004-09-07
Abstract: A robotic arm for moving product from a first handling station to a second handling station is disclosed. The robotic arm includes a support structure and a driven shaft mounted to the support structure. The driven shaft is adapted for rotation about a first axis.      A device is provided for selectively oscillating the shaft through successive, selected arcs of rotation. A crank arm is secured to the driven shaft at a first point such that the crank arm is rotated about the first axis.      A linkage member is rotatably secured to the support structure for rotation about a second axis. The linkage member is rotatably secured to the support structure at a first linkage pivot point on the linkage member. The crank arm and the linkage member are interconnected by an elongated boom member having a first end, a cranking point and a product handling end. The boom member is pivotally connected at its first end to the linkage member. The boom member is further pivotally connected at its cranking point to the crank arm. The interrelationship among these members is such that when the crank arm is selectively oscillated, the crank arm causes movement of the product handling end of the boom in a path having an arcuate component and an approximately straight line component for handling product.
Patent CA-2119943-C (CA)
Inventor: BARTZICK GERD
IPC: B65B13/22
Filed: 1994-03-25
Granted: 2006-01-31
Abstract: A package strapper with three motor-driven mechanisms, specifically a strap feed, a strap stretcher, and a strap-end fastener. The mechanisms are mounted on a strap track that loops around the package. The strap feed includes at least two wheels, each forced against one side of the strap by a spring. The motor that drives the strap feed can be reversed. The strap-stretcher wheel is between the feed and the track and is partly loosely surrounded by a strap guide.      One end of the guide opens into the track. The strap-feed motor and the strap-stretcher motor are asynchronous three-phase motors. They are connected to a frequency converter that supplies them with electricity of varying frequency and potential and controlled by controls or by a processor integrated into the frequency converter. A manually adjustable terminal strap-tension selector is connected to the controls or to the processor. The frequency of the electricity that powers the strap-stretcher motor is varied in accordance with the prescribed terminal tension. The electricity that powers the strap-feed motor is varied in accordance with frequency and phase.
Patent CA-2125595-C (CA)
Inventor: WALL JAMES C
IPC: A47L5/38
Filed: 1994-06-10
Granted: 1996-04-02
Abstract: An  automatic  dustpan  apparatus  for  central  vacuum cleaning systems has a hollow body member that is configured for built-in mounting under cabinetry or in walls adjacent a floor surface, and connection to a conventional central vacuum cleaning system whereby debris on a floor surface may simply be swept to the vicinity of the automatic dustpan and hence into the central vacuum cleaning system where it is discarded.          A valve within the dustpan body automatically closes when the dustpan is not in use to permit the other receptacles in the central vacuum cleaning system to function and provision is made to assure against the energizing of the central vacuum cleaning motor when the automatic dustpan is to be used until after the valve of the dustpan has been opened, in order to prevent harmful overloading and other undue damaging strains on the motor during its initial startup and operation.
Patent CA-2126798-C (CA)
Inventor: BAI XINLAI
IPC: C08F10/00
Filed: 1994-06-27
Granted: 1998-08-25
Abstract: A process for the production of polyethylenes or EPRs comprising contacting a mixture comprising ethylene, one or more alpha-olefins, and, optionally, a diene, under polymerization conditions, with a catalyst system comprising:             (A) a catalyst precursor comprising: (i) a vanadium compound, which is the reaction product of (a) VX3 wherein each X is independently chlorine, bromine, or iodine; and (b) an electron donor, which is a liquid, organic Lewis base in which VX3 is soluble;      (ii) a modifier having the formula BX3 or AlR(3-a)Xa wherein each R is independently alkyl having 1 to 14 carbon atoms; each X is as defined above; ant a is 0, 1, or 2; and (iii) a support for said vanadium compound and modifier, said catalyst precursor being in an independent or prepolymerized state, (B) a cocatalyst consisting of a compound having the formula AlR(3-a)Xa wherein R and X are as defined above and a is 1 or 2; and (C) a promoter consisting of a saturated or an unsaturated aliphatic halocarbon having at least 3 carbon atoms and at least 6 halogen atoms, or a haloalkyl substituted aromatic hydrocarbon wherein the haloalkyl substituent has at least 3 halogen atoms.
Patent CA-2134524-C (CA)
Inventor: HUGHES JOHN P JR
IPC: E04B1/70
Filed: 1994-10-27
Granted: 1999-11-23
Abstract: A basement wall is formed by a series of vertical metal studs supported at their lower ends on a metal sill extending along the upper face of a concrete footing. An insulating sheathing is mounted on the metal studs to form the wall outer surface. The sheathing is formed by two panel layers of rigid foam core insulator material. Edges of the inner panels are offset from the edges of the outer panels to form labyrinth seals preventing migration of ground water through the sheathing.
Patent CA-2149150-C (CA)
Title: Injectable taxol composition with improved stability
Inventor: CARVER DAVID R
IPC: A01D43/02
Filed: 1993-11-18
Granted: 2000-08-01
Abstract: A composition of taxol and polyethoxylated castor oil is pH balanced to have a pH less man 8.1 to improve stability. This composition can include an acid, preferably citric acid, to adjust the pH value. The invention includes a method of formulating a taxol solution for injection by mixing an acid with a carrier material, such as castor oil, to form a carrier solution after which taxol is mixed with the carrier solution to form the taxol solution at a pH of less than 8.1. The method may include the step of slurrying the taxol in alcohol before mixing with the carrier solution.
Patent CA-2149618-C (CA)
Title: Spray polyurea elastomers containing organic carbonates to improve processing characteristics
Inventor: PRIMEAUX DUDLEY JOSEPH II
IPC: C08K5/1565
Filed: 1995-05-17
Granted: 2008-11-25
Abstract: Spray polyurea elastomers are disclosed made from an (A) component and a (B) component, where the (A) component has a quasi-prepolymer made from an isocyanate and an active hydrogen-containing material, such as a polyoxyalkylenepolyamine. The (B) component includes an amine resin, such as an amine-terminated polyoxyalkylene polyol which may be the same or different from the polyoxyalkylene polyamine of the quasi-prepolymer. The viscosity of the (A) component is reduced by the inclusion of an organic, alkylene carbonate, such as ethylene carbonate, propylene carbonate, butylene carbonate, dimethyl carbonate, and the like.  The alkylene carbonate also serves as a compatibilizer between between the two components, thus giving an improved mix of the system.