baber/WOPTO huggingface dataset:
Patent CA-2007427-C (CA)
Title: Motor control circuit
Inventor: BROWN ROBERT J JR
IPC: H01H3/26
Filed: 1990-01-09
Granted: 1998-12-08
Abstract: A motor and manual actuated switch includes a motor control circuit for controlling the motor to rotate in either a clockwise or counterclockwise direction to actuate a mechanical switch between the open circuit and short circuit states.  The control circuit includes a capacitor coupled in series with the motor winding to form a series circuit and a control switch for connecting a source of d.c. power across said serial circuit when in a first position and a short circuit across said series circuit when in a second position.  When the control switch is moved to the first position, the capacitor charges, causing a current to flow through the motor winding during the charge time, thereby causing rotation in one direction. When the control switch is moved to the second position, the capacitor  discharges through the winding, thereby causing opposite current flow and shaft rotation.  The mechanical switch may be made to change states by actuation of a manual button or by rotation of the motor and includes a pin which  rotates upon a change of states of the mechanical switch.  The motor is interconnected with the pin by an extension and offset extending from the pin and an open center triangular shaped connector affixed to the motor shaft, with the offset extending into the open center.  The extension acts as a spring to reduce the impact of the connector against the offset when the motor shaft rotates.
Patent CA-2010212-C (CA)
Title: Method and apparatus for density control in rectangular balers to improve the bale tying operation
Inventor: SCHOONHEERE MARNIX J
IPC: A01F15/14
Filed: 1990-02-16
Granted: 1999-10-26
Abstract: A rectangular baler has a density control for con-trolling the density to which crop material is compacted by a cyclically operating plunger, and a cyclically operating tying mechanism for tying loops of binding material around successive lengths of the compacted crop material to form bales.  In order for the tying mechanism to function properly the binding material must slide between a tied bale and the crop material being com-pacted against the tied bale.  If the sliding friction is too great, the binding material breaks or is pulled free of the tying mechanism thus resulting in failure of the tying process.       To reduce the sliding friction, the compaction density is re-duced for an interval of time following each cycle of the tying mechanism.  The interval of time may be tolled by counting a number of plunger cycles immediately following a cycle of the tying mechanism, the density control being set for reduced com-paction density until the number of plunger cycles has been counted.  In an alternative embodiment the interval of time is controlled by the rate at which crop material enters the bale case following a cycle of the tying mechanism.
Patent CA-2011591-C (CA)
Title: Preventing off-flavor in certain alitame-sweetened beverages
Inventor: GLOWAKY RAYMOND CHARLES
IPC: A23L27/30
Filed: 1990-03-06
Granted: 1995-10-31
Abstract: The flavor of beverages having a pH below 4.0 which have been artificially sweetened with alitame is stabilized by formulating the beverages with edetic acid or a food-acceptable salt thereof.
Patent CA-2011647-C (CA)
Inventor: CALDWELL DONALD J
IPC: H01L25/11
Filed: 1990-03-07
Granted: 1994-09-27
Abstract: Abstract of the Disclosure The rectifier structure comprises a plurality of diodes including opposed first and second terminals.  A plate electrically connects the first terminals to one another. retainer locates the diodes on the plate.  A plurality of individual links including an outer end portion, an inner end portion, and a fuse portion therebetween are located on the retainer such that the outer end portion of each link is in contact with the second terminal of a respective diode.          A washer is in contact with the inner end portion of each link for electrically connecting the second terminals to one another.  The links provide fuses for disconnecting the diodes from the washer when excessive current flows through a diode.
Patent CA-2014045-C (CA)
Inventor: WITTRISCH CHRISTIAN
IPC: E21B23/08
Filed: 1990-04-06
Granted: 2000-10-24
Abstract: Méthode et dispositif adaptés particulièrement à la prospection sismique dans des drains sensiblement horizontaux avec des ondes acoustiques de fréquence intermédiaire permettant de concilier portée et pouvoir de résolution. Dans un puits, on descend par étapes un ensemble d'émission-réception comportant au moins une sonde associée à un bloc de guidage mais pouvant être désaccouplée mécaniquement de lui, et au moins une source d'ondes acoustiques associée à un bloc de guidage. La source est intercalée sur une colonne rigide reliant la sonde au dispositif de manoeuvre en surface. Un système de connexion différé permet de connecter électriquement la sonde et la source à un ensemble de commande et d'enregistrement en surface. La source comporte un ou plusieurs vibrateurs émettant dans la bande 200-2000 Hz par exemple où un étinceleur. Application notamment à l'étude locale de bassins sédimentaires.
Patent CA-2014726-C (CA)
Title: Operation control system for automated guided vehicles
Inventor: HORI HIDEKI
IPC: G05B19/418
Filed: 1990-04-17
Granted: 1997-10-14
Abstract: An operation control system for automated guided vehicles conveying articles along an unmanned conveying system.  This operational control system comprises a first travel path loop and a second travel path loop along which a first group and a second group of the automated guided vehicles are automatically travelled. A common travel path is provided along which the automated guided vehicles of both the first and the second group are travelled, to enable a transfer of articles between the groups of automated guided vehicles.  Also a correlating unit for correlating one automated guided vehicle of the first group with another automated guided vehicle of the second group, and a transfer control unit for controlling the transfer of the articles between the automated guided vehicles are provided.  The transfer control unit permits only a transfer of articles between automated guided vehicles correlated with each other by the correlating unit.
Patent CA-2015015-C (CA)
Inventor: WOOD RICHARD J
IPC: F23M20/00
Filed: 1990-04-20
Granted: 1993-10-05
Abstract: BELL ORIFICE PLATE FOR INSHOT COMBUSTION FURNACE A belled orifice inlet plate is provided for an induced draft combustion furnace heat exchanger of the type in which an inshot burner produces a hot gaseous combustion that is injected through an opening in the inlet plate into a combustion zone in the heat exchanger. The inlet plate has a flared collar that surrounds the opening at its periphery, and which extends a predetermined distance into the combustion zone. Preferably, the collar should have a depth on the order of one-quarter inch to one-half inch, and the flared portion should have a radius of curvature on the order of about one-quarter inch.
Patent CA-2027460-C (CA)
Title: Calender for surface treatment of material webs
Inventor: HEITMANN PETER
IPC: D21G1/00
Filed: 1990-10-12
Granted: 2000-03-28
Abstract: A calender for surface treatment of material webs, wherein in the event of one sided seizure of an intermediate roller the fixed roller not subject to pressure is adjusted in position at one end such that the asymmetrical linear force profile resulting from the seizure is symmetrically adjusted according to the desired condition in order to optimise processing of the material web.
Patent CA-2030840-C (CA)
Title: Automatic self-guiding lawn mower and mowing method
Inventor: SHURMAN DARLENE M
IPC: A01D34/00
Filed: 1990-11-26
Granted: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE         An automatic self-guiding lawn mower includes a carriage having first and second sets of electric motors mounted thereon.  A blade is operatively connected to and driven by each one of the first set of electric motors for cutting grass, and a wheel is operatively connected to and driven by each one of the second set of motors for moving the carriage.   A relay device having at least one trip point is electrically connected to each of the first motors and to the second set of motors.  The method of mowing a lawn with the improved lawn mower includes the steps of actuating the first set of motors and attached blades and manually cutting a border around the lawn with the mower. The mower then is positioned adjacent to a peripheral edge of an uncut area of the lawn.  The relay devices detect a predetermined change in the power consumption of their respective first motors corresponding to the trip point when the attached blades move between cut and uncut grass, and actuate certain ones of the second motors and attached wheels in response thereto for guiding the mower carriage along the peripheral edge of the uncut area of the lawn. The relay devices reverse the polarity of the second motors and the direction of the mower when the blades encounter cut grass for a first predetermined amount of time, and automatically shut off the first and second motors when the blades encounter cut grass  for a  second predetermined amount of time.
Patent CA-2030995-C (CA)
Title: Internal impact type particle separator
Inventor: BELIN FELIX
IPC: B01D45/08
Filed: 1990-11-28
Granted: 1995-09-05
Abstract: An internal particle separator having impingement members positioned within the furnace enclosure across and just upstream of  the  furnace  exit opening.   These  impingement members  are organized into at least two staggered rows that are positioned to fully cover the exit opening thereby allowing entrained particles to strike the impingement members and free-fall directly back into the fluidized bed to increase its density.  A baffle plate is attached to the lower end region of the impingement members thereby  obstructing  the  vertical  gas  passage  between  these members.
Patent CA-2033775-C (CA)
Inventor: MASON CHARLES R
IPC: B65D81/34
Filed: 1991-01-08
Granted: 2002-03-19
Abstract: A microwave cooking bag, method, and system are disclosed in which a food product in the bag is cooked, browned and crisped in a microwave oven. The bag forms an enclosed cooking space which is substantially surrounded by a susceptor material layer. The susceptor material layer is heated during cooking by the microwave radiation to a temperature sufficient to brown and crisp the food product while the microwave radiation also directly heats and thereby cooks the food product. Both a five-sided bag and a four-sided. pouch-like bag are disclosed.
Patent CA-2037033-C (CA)
Title: Pattern-forming conveyor apparatus for container palletizing
Inventor: WYMAN RONALD EINER
IPC: B65G47/08
Filed: 1991-02-25
Granted: 1995-08-29
Abstract: Apparatus and method for arranging cartons or cases of beverages in predetermined patterns in a conveying process for stacking in tiers on pallets.  A combination of an input guide conveyor moveable between left, right, and centered positions and at least one moveably adjustable diverter bar is  utilized  to  direct  incoming  containers  along  a predetermined path through a pattern-forming zone comprised of  a  plurality  of  parallel,  power-driven  conveyors. Containers  are directed one at a time either along a dividing line path between two, adjacent, pattern-forming conveyors in overlapping relation thereto, or directly onto one of those  conveyors.   A differential  speed-control mechanism is provided in conjunction with one or more of the parallel,  pattern-forming conveyors  and  is  selectively actuated to change the speed of one conveyor of a pair of conveyors  on  which  a  container  is  being  carried  in overlapping relation to both conveyors.   Such a conveyor speed change causes the container to be turned sideways and is utilized to orient containers in desired, alternate tier patterns for stacking on pallets.
Patent CA-2037309-C (CA)
Title: Device for fixing beater bars in peripheral cut-outs of impact crusher rotors
Inventor: BERGMANN WERNER
IPC: B02C13/28
Filed: 1991-02-28
Granted: 2001-05-15
Abstract: The invention relates to a device for fixing beater bars 9 in peripheral cut-outs 8 of impact crusher rotors 2., Provided in the peripheral cut-outs 8 and firmly attached to rotor 2 are securing means 10, 11, which engage with, corresponding parts of the fitted beater bar 9, securing it against radial movement outwards. Also, provided in the peripheral cut-outs are wedges 16, which force into engagement securing means 10, 11 with the beater bar 2 and which are held in their clamping position by thrust elements 17, 18 which press them against the rotor 2. Thrust elements 17, 18 allocated to one beater bar are connected via transverse holes with the longitudinal hole 20 of an axis-parallel-extending component 19. According to the invention, the component 19 is formed as a pressure line rail, which is arranged at the base of the peripheral cut-outs 8, whereby the thrust elements 17 are arranged on the side of the pressure line rail facing towards the wedges 16, so that they are supported against the pressure line rail and thus against the rotor 2:
Patent CA-2049389-C (CA)
Title: Railless refrigerator display door
Inventor: RICHARDSON RICHARD J
IPC: E05D11/00
Filed: 1991-08-16
Granted: 1996-06-18
Abstract: A railless refrigerator display door constructed with two or more glass panels and having a peripheral door frame extending around the sides of the door and at the inside of the door without covering the outside glass surface of the door.  Sealant is used to bond the glass panels to periph-eral spacers separating the panels and to C-section struc-tures which extend peripherally around the sides of the door.   The door frame is also bonded to the C-section structures and glass panels by the sealant.  Rubber bumpers attached to the C-section structures reduce cold transfer from the inside glass panel to the outside glass panel.  As such, mechanical fasteners such as nuts, bolts or screws are not needed for the purpose of holding the refrigerator door together.
Patent CA-2049448-C (CA)
Title: Vertical cavity type vertical to surface transmission electrophotonic device
Inventor: KOSAKA HIDEO
IPC: H01S5/183
Filed: 1991-08-19
Granted: 1994-07-26
Abstract: A VC-VSTEP has a pnpn structure, and comprises first and second mirror structures, and an intermediate structure provided between the first and second mirror structures.  The intermediate structure comprises an active and light absorption layer of multi-quantum well layers, and is set to have a thickness which is n times of an oscillation wavelength in a medium, where n is an integer.
Patent CA-2049806-C (CA)
Title: Modified carbon molecular sieves for gas separation
Inventor: GAFFNEY THOMAS RICHARD
IPC: C01B31/08
Filed: 1991-08-23
Granted: 1997-03-04
Abstract: A process is provided for making a modified carbon molecular sieve which is suitable for separating gases having different adsorption rates on the sieve.  The process involves modifying a starting sieve support having a majority of micropores with an effective pore size of about 4.5 to 8 angstroms, with a two-step process in which the sieve is contacted with two different volatile carbon-containing organic compounds, preferably hydrocarbons, which have different molecular dimensions.  The compound used in the first step is larger than that in the second step, so that the pore openings of the micro-pores of the support are narrowed successively in two distinct steps without filling the micropores themselves.  The invention also discloses an improved carbon molecular sieve and the separation of gases, such as oxygen from nitrogen, by the use of this improved adsorbent.
Patent CA-2053541-C (CA)
Inventor: FROST JOHN HUNNICUTT
IPC: A63B57/00
Filed: 1991-10-16
Granted: 1995-08-01
Abstract: A hand accessory contoured to fit into the webbed portion of the hand between the base of the thumb and the base of the forefinger, to overlie that area and to extend down into the palm to enable the handle of a piece of sport equipment or of a tool to be gripped snugly by the hand and to be swung to impact with a ball or other object without substantial movement of the web area of the hand before or at impact relative to the remainder of the hand.          This enables full force to be transmitted from the hand to the handle.
Patent CA-2054408-C (CA)
Title: Method for compensating for steering angle error in a fully-hydraulic steering system and a fully-hydraulic steering system
Inventor: THOMSEN SVEND ERIK
IPC: B62D5/093
Filed: 1991-10-29
Granted: 1998-01-06
Abstract: A method for compensating for steering angle error in a fully-hydraulic steering system and a fully-hydraulic system are proposed, in which, on displacement of a steering handwheel  (5), a steering handwheel angle and a steering motor angle and also the steering handwheel speed are ascertained, and the fluid flow between a steering control device (4) and a steering motor (8) is changed in dependence on the steering angle error.    With such a method, and with a steering system of this kind, the comfort of an operator when steering is to be increased despite steering angle error compensation.     For that purpose, in the method, is effected at every steering handwheel speed and every steering angle error, the change of the fluid flow being performed in dependence on the steering handwheel speed and the steering angle error.   In the steering system, a multiplier (24) is provided which multiplies the outputs of the difference-generating means and the differentiator together, the output of the multiplier being connected by way of a proportional element (25) to a valve control device (26) connected to pass signals to the valve arrangement.
Patent CA-2063203-C (CA)
Inventor: MAJOR MICHAEL D
IPC: A23L27/60
Filed: 1992-03-17
Granted: 2003-12-30
Abstract: A mixing apparatus for viscous emulsions, and more particularly a mixing apparatus incorporating a pinned mixing chamber cooperating with splined rotor for the blending and homogenizing of at least one further constituent and/or air with a base emulsion received from a mixer in order to impart a specified and intended consistency and texture to a product produced from the emulsion. Furthermore, there is also provided a method for producing the product formulated from the viscous emulsion by utilizing the mixing apparatus; and a resultant viscous flowable product of improved and specified consistency and texture, such as a mayonnaise, mayonnaise-type emulsion or salad dressing formulated through the mixing apparatus and method.
Patent CA-2067744-C (CA)
Title: The human c3b/c4b receptor (cr1)
Inventor: FEARON DOUGLAS T
IPC: C12N15/12
Filed: 1990-09-25
Granted: 2001-02-06
Abstract: The present invention relates to the C3b/C4b receptor (CR1) gene, its encoded protein, and CR1 nucleic acid sequences and fragments thereof comprising 70 nucleotides and their encoded peptides or proteins comprising 24 amino acids. The invention further provides for the expression of the CR1 protein and fragments thereof. The genes and proteins of the invention have uses in diagnosis and therapy of disorders involving complement activity, and various embodiments of the present invention include the cloning, nucleotide sequence and deduced amino acid sequence of a full-length CR1 cDNA and fragments thereof. The expression of the CR1 protein and fragments thereof is also described as is the expression of a secreted CR1 molecule lacking a transmembrane region which is useful in reducing damage caused by inflammation and in reducing myocardial infarct size and preventing reperfusion injury.
Patent CA-2069143-C (CA)
Title: Load chock and method of restraining load in event of sudden stop
Inventor: SHELLEBY FRANK J
IPC: B61D45/00
Filed: 1992-05-21
Granted: 1998-08-11
Abstract: A chock and chock anchor for a transport vehicle having a cargo carrying platform and a transport vehicle incorporating the same.  The chock anchor is secured to the platform and the chock is detachably mounted thereon with downwardly extending projections on at least one of the chock anchor and chock to cause structural damage to the vehicle platform confining the cargo such as a multi-ton coil of steel to the vehicle in the event of a sudden stop.
Patent CA-2069923-C (CA)
Inventor: MCVICKER JOSEPH E
IPC: C22C38/00
Filed: 1991-10-21
Granted: 2002-04-30
Abstract: A deep hardening steel has a composition comprising, by weight, about 0.26% to 0.37% carbon, about 0.5% to 1.0% manganese, about 1.0% to 3.0% silicon, about 1.5% to 2.5% chromium, about 0.3% to 1.0% molybdenum, from 0.05% to 0.2% vanadium, from 0.03% to 0.1% titanium, from 0.01% to 0.03% aluminum and at least 0.005% nitrogen. Also, the composition preferably contains less than about 0.025% each of phosphorus and sulfur. After quenching and tempering, articles made of this material are substantially free of aluminum nitrides, have a fine grained microstructure, and a combination of high hardness and fracture toughness.        The deep hardening steel embodying the present invention is particularly useful for ground engaging tools that are subject to breakage and abrasive wear at high temperature.
Patent CA-2070999-C (CA)
Title: Building block
Inventor: STONE ROBERT J
IPC: A63H33/06
Filed: 1990-12-18
Granted: 1995-05-09
Abstract: A building block (10) is in the shape of a right-angled isosceles triangular prism. The block has male hinge elements (22, 24) on one edge and female hinge elements (25, 26) on another edge such that two blocks (10) can not only be hingedly attached but also joined at both respective hinge element carrying edges to form a cube. Male (31) and female (30) face connection ele-ments are provided to allow face to face connection.
Patent CA-2077038-C (CA)
Title: Magnetic tape with motion limiting fingers
Inventor: LI CHI CHUNG
IPC: G11B23/087
Filed: 1992-08-27
Granted: 1996-12-31
Abstract: A magnetic tape cassette that includes a substantially rectangular housing and a pair of tape reels carried for rotation within the housing with a length of magnetic tape extending between the reels for recording and/or playback of information.  An aperture in a sidewall of the housing affords external access to the tape by recording/playback apparatus, and posts within the housing guide the magnetic tape between the reels adjacent to the sidewall aperture. The guideposts are mounted with the housing so as to be disposed entirely internally of the tape between the reels such that the information surface of the tape is free of contact with the guideposts or any other portion of the cassette as the tape is wound between the  reels  past  the  sidewall  aperture.    A  circular  array  of circumferentially spaced  fingers are integral with  the housing surrounding each of the reels radially spaced from the reels so as to limit lateral motion of the reels while maintaining alignment of the reels with apertures in the bottom wall of the housing for engagement with the tape drive mechanisms of recording/playback apparatus.
Patent CA-2078878-C (CA)
Title: Process for the preparation of high-purity tetrahydrofuran
Inventor: GUSTAFSON BRUCE LEROY
IPC: C07D307/08
Filed: 1991-03-28
Granted: 1998-08-11
Abstract: Disclosed is a process for the preparation of high-purity tetrahydrofuran from a mixture of 2,5-dihydrofuran and 3,4-epoxy-1-butene and/or crotonaldehyde wherein the mixture is hydrogenated in the presence of a nickel or platinum catalyst to obtain a product consisting essentially of tetrahydrofuran and 1-butanol which are readily separable.