baber/WOPTO huggingface dataset:
Patent CA-2214621-A1 (CA)
Title: Snow removal device
Inventor: SINCLAIR SYLVESTER JR
IPC: E01C19/20
Filed: 1997-09-04
Abstract: A snow removal push board and snow barrow.  More specifically, the invention is a snow push board made up of a generally rectangular board with handles on one side and a scraping edge directly opposite the handles.  The push board is operated by grasping the handles in front of the waist and allowing the board to be on an approximately forty-five degree incline from the user's waist to the ground while pushing the scraping edge along the ground.  The snow barrow includes a board having a scraping edge and generally triangular sides.  The snow barrow has handles for the user to grasp and push the barrow with two large wheels in the rear and two smaller wheels in the front of the barrow for maneuvering.  The snow barrow also has structure for dispensing salt using either a vertical pinwheel or track dispersement axles in between the rear wheels of the barrow.  The amount of salt dispensed can be controlled by adjusting a gauge.
Patent CA-2214698-A1 (CA)
Inventor: BARNSLEY MICHAEL F
IPC: H04N7/26
Filed: 1996-03-06
Abstract: A method and apparatus are described for encoding a three-dimensional array of data representing a physical entity, such as an image (or sequence of frames), by means of its local symmetries. This encoding yields both compression and a resolution-independent description which allows reconstruction of the image to an arbitrary scale. Spatial zooming and  interframe interpolation can be achieved without significant loss of information. The method of the invention includes the steps of storing digital data of a predetermined size in a three-dimensional format (20), dividing the array into a plurality of rectangular domain boxes to generate a plurality of uniquely addressable three-dimensional domain sets (22), dividing the array into a plurality of range boxes that are uniquely addressable (24), applying an affine transformation to each domain set and, for each domain set, selecting a range set and transformation (26), and outputting the address of a selected range set and selected transformation as a codeword (28). This set of codewords, one codeword for each of the selected domain sets, represents the original digital data. The transformations selected for each of the domain sets corresponds to one of the following criteria: (a) the minimum distance between the domain set and a transformed range set; (b) the distance between a domain set and a transformed range set that falls below a given threshold; or (c) the range set satisfies a secondary criterion and the distance between the domain set and a transformed range set falls below a given threshold.
Patent CA-2215517-A1 (CA)
Title: Treatments for inhibiting vinyl aromatic monomer polymerization
Inventor: MARTIN JOHN F
IPC: C07C7/20
Filed: 1996-04-19
Abstract: Compositions and methods for inhibiting vinyl aromatic monomer polymerization during processing are disclosed. The compositions are combinations of a dinitrosalicylic acid derivative and a hydroxylamine compound and are added to the monomer during processing.  The preferred composition is 3,5-dinitrosalicylic acid or 3,5-dinitrosalicylic methyl ester and bis-(hydroxypropyl)hydroxylamine in a weight ratio ranging from 1:9 to 9:1.
Patent CA-2215617-A1 (CA)
Title: Image processing device
Inventor: YAMADA HIDEAKI
IPC: H04N1/21
Filed: 1997-09-16
Abstract: The present invention is directed to an image processing device that can prevent the occurrence of moire patterns when processing a dot image. An image processing device according to the present invention comprises an image memory for storing multi-gradational image data, an area-deciding portion for deciding an area of pixels PIX (x, y) of a multi-gradational image stored in the memory and outputting a decision signal SEL=0 when the pixel is a character area pixel or a decision signal SEL=1 when the pixel is a halftone area, a binarizing portion for character for binarizing a character image pixel PIX (x, y) of the multi-gradational image data stored in the memory and outputting a binarized image data L, a binarizing portion for photograph for binarizing a halftone image pixel PIX  (x, y) of the multi-gradational image data stored in the memory and outputting a binarized image data P, an output selecting portion for selectably outputting binarized image data B which is the binarized image output L from the binarizing portion for character when the output SEL of the area deciding portion is 1 or the binarized image output P from the binarizing portion for photograph when the output SEL  is 0, and a memory for storing binarized image data outputted from the output selecting portion.
Patent CA-2216187-A1 (CA)
Inventor: OLIVEIRA CESAR B
IPC: A61M5/50
Filed: 1997-09-17
Abstract: A syringe arranged for a single use is described. The syringe comprises a cylindrical body for holding a liquid therein, a nozzle for drawing up and ejecting the liquid and a plunger including a plunger head arranged for a sliding fit within the cylindrical body such that the plunger slides along the cylindrical body in an uptake direction for taking the liquid up into the cylindrical body and an expeldirection for ejecting the liquid from the cylindrical body. The syringe furtherincludes either individually or any combination thereof: one-way locking means, a valve system, a tear strip, a stopper, a spring-loaded ball and a snap-off nozzle for preventing the syringe from being used more than once. Specifically, the one-waylocking means is arranged to lock the plunger in place within the cylindrical body once the plunger has ejected the liquid. The one-way locking means may comprise a spring-loaded rib arranged to project inwardly from the cylindrical body proximal to the bottom of the cylindrical body. The tear strip may comprise a wire strip molded into the cylindrical body such that pulling the wire strip out tears the cylindrical body, thereby preventing the syringe from being reused. The stopper is arranged to prevent the plunger from being separated from the syringe. The spring-loaded ball is arranged, when released, to plug the nozzle as a result ofsuction generated when the plunger slides in the uptake direction, thereby preventing liquid from being drawn up. The valve system is arranged within the plunger head such that when the valve system is activated, air flows through theplunger head so that no suction is generated, thereby preventing liquid from being drawn up. Finally, the nozzle is arranged to snap off of the cylindrical body under applied pressure. Thus, any one of these features or any combination thereof maybe used to prevent the syringe from being reused.
Patent CA-2216497-A1 (CA)
Inventor: SATTLER DENNIS J
IPC: B60P1/64
Filed: 1997-09-24
Abstract: A truck mounted payload loading and unloading apparatus comprising a tilting bed supported over a frame assembly. The aft portion of the tilting bed being connected to the frame assembly by a link member disposed therebetween. The link member having a first end pivotally connected to the frame assembly at a link pivot joint. Wherein the link member is pivotable about the link pivot joint. The link member having a second end pivotally connected to the tilting bed at a bed pivot joint wherein the tilting bed pivot joints about the bed pivot joint about a substantially horizontal aft pivot axis. The tilting bed being pivoted by a first actuator operatively disposed between the frame and the tilting bed to drivingly engage the tilting bed and tilt the same about the bed pivot joint responsive to actuation of the first actuator. The bed pivot joint being movable in a direction parallel to the longitudinal axis of the vehicle and downward responsive to actuation of a second actuator operatively disposed between the frame and the link member. The movement of the first and second actuator being synchronized so that the same move in a predetermined manner wherein the aft end of the tilting bed shifts rearward and .downward responsive to actuation of the actuators.
Patent CA-2217113-A1 (CA)
Title: Method for testing and determining the alloy class of an aluminum alloy
Inventor: HEINZEL ULRICH
IPC: G01N33/20
Filed: 1997-10-01
Abstract: A method for testing and determining the alloy class of an aluminum alloy may be simply and easily carried out, for unequivocally determining the correct alloy class among the aluminum alloy classes 2XXX, 5XXX or 6XXX, and 7XXX, of the test sample. According to the method, the material sample is dissolved in hydrochloric acid (HCL) to prepare a first solution, then nitric acid (HNO3) is added drop-wise to the first solution in order to cause oxidation of any insoluble copper (Cu) therein and form a second solution, then a potassiumhexacyanoferrate (II) solution (K4[Fe(CN)6]) is added to the second solution to bring about a discoloration and precipitation reaction and form a final resulting solution. Finally, the applicable alloy class of the tested material sample is determined by visually categorizing the color and precipitation state of the resulting solution. A brown cloudy solution indicates a 2XXX alloy, a gray-green cloudy solution indicates a 7XXX alloy, and a blue or green transparent solution indicates a 5XXX or 6XXX alloy.
Patent CA-2217379-A1 (CA)
Inventor: DELAGNES PHILIPPE
IPC: G01C7/04
Filed: 1997-10-01
Abstract: The invention concerns a process for detecting defects in a textured suface, particularly on a highway. The process consists in displacing with respect to the surface a camera presenting an inclination and in processing by processing systems the successive images taken by the camera. A mathematical processing is effected on sub-images, corresponding to the same spatial portion of the surface, taken at different consecutive instants.
Patent CA-2218357-A1 (CA)
Title: Retaining device for assembly parts
Inventor: SICKELS DAVID W
IPC: B23P19/06
Filed: 1996-06-06
Abstract: An installation tool, fastener, and method for installing the fastener are disclosed. The installation tool has control fingers which control the position of the fastener with respect to the plunger and workpiece to which the fastener is to be attached during the entire travel of the fastener from the entry into the installation tool to installation in the workpiece. The fingers are pivotally mounted to the plunger and travel with the plunger throughout the installation path. The fingers are adapted to engage the fastener in a displaced area on the fastener so that the fingers can control the fastener through installation of the fastener into the workpiece. The displaced area is positioned between the top and bottom of the fastener so that the fingers can maintain control throughout installation.
Patent CA-2218625-A1 (CA)
Title: Stress treatment and preconditioning against stress
IPC: A61K35/14
Filed: 1997-10-20
Abstract: Symptoms of stress such as elevated blood pressure in mammals are treated, and mammalian bodies are preconditioned to manifest reduced adverse reactions to subsequently encountered stresses, by injecting into the mammalian patient a small quantity of the patient's own blood which has been previously extracted and subjected  extracorporeally  to  three  stressors  simultaneously, namely ultraviolet radiation, ozone-oxygen gaseous mixture and mild heating.
Patent CA-2219092-A1 (CA)
Inventor: BURGESS LESTER E
IPC: H01H1/029
Filed: 1996-04-23
Abstract: A pressure sensitive sparkless switching device includes a layer of piezoresistive cellular polymer foam, at least two conductive layers, and an insulative spacer element having at least one opening. When pressure is applied to the device the piezoresistive foam disposes itself through the opening of the spacer element and makes electrical contact between the conductive layers. The resistance of the piezoresistive foam varies with the amount of pressure applied to provide an analog as well as on-off function. The device may also provide multiple switching, and shear detection capabilities.
Patent CA-2223676-A1 (CA)
Title: In-the-ear hearing aid with directional microphone system
Inventor: PREVES DAVID A
IPC: H04R29/00
Filed: 1997-12-04
Abstract: Apparatus for use as an in-the-ear hearing aid. The apparatus includes a housing having a shell and a face plate, wherein the shell is molded to custom fit a hearing aid user's ear. A first non-directional microphone system is included having a first output signal representative of the sound received. A second non-directional microphone system is included having a second output signal representative of the sound received. A switch mechanism is included having an operator extending through the housing for switching the in-the-ear hearing aid between a non-directional mode and a directional mode. In the directional mode, the microphone system is adjustable between a cardioid and super cardioid polar output pattern.
Patent CA-2224982-A1 (CA)
Inventor: ROYLE GARY JOHN
IPC: G01T1/167
Filed: 1996-06-24
Abstract: The invention provides a gamma detection and modelling system in which the energy deposition and incident locations on two detectors (15, 17) are used to calculate the source. The detector assembly and processing means are provided as distinct units allowing the detectors' use in radioactive and other inaccessible areas. The gamma radiation image can be superimposed on an optical image of the monitored location. Various detector arrays from a simple pair of detectors through single first and multiple second detectors to combinations of such detector pairs are disclosed together with a method for their use.
Patent CA-2225102-A1 (CA)
Title: High quality speech coder and coding method
Inventor: OZAWA KAZUNORI
IPC: G10L19/16
Filed: 1997-12-18
Abstract: A first coefficient generating unit derives, from past reproduced speech signal, a first coefficient signal representing a spectral characteristic of the past reproduced speech signal.      A residual signal generating unit derives, from speech signal for each frame, a predicted residue signal by using the first coefficients. A second coefficient generator derives second coefficients representing a spectral characteristic of the predicted residue signal. A second coefficient quantizing unit quantizes the second coefficients and provides a quantized coefficient signal. An excitation quantizing unit derives an excitation signal concerning the speech signal by using the speech signal, the first coefficient signal, the second coefficient signal and the quantized coefficient signal, quantizes the second source signal thus derived and provides a quantized excitation signal. A reproduced signal generating unit reproduces a speech of the pertinent frame by using the first coefficient signal, the quantized coefficient signal and the quantized excitation signal.
Patent CA-2225238-A1 (CA)
Title: Air intake arrangement for outboard marine engines
Inventor: RINZAKI SHOICHI
IPC: F02B75/02
Filed: 1997-12-18
Abstract: In an outboard marine engine, an air intake passage is mostly defined by a partition wall which extends substantially horizontally inside the engine cover so as to define an air introduction chamber above an engine roomy accommodating an engine. The air intake passage is defined in such a manner that the intake air is initially guided along a horizontal path between upper and lower plates, and is forced upward through an opening in the upper plate by a first vertical baffle plate extending between front edges of the upper and lower plates before it goes over a second vertical baffle plate extending from the upper plate and finally enters the engine room. Therefore, any heavier contents such as water droplets are effectively removed from the intake air by the actions of inertia and the gravitational force. Because the intake air passage is mostly defined by the partition wall, any design change in the air intake arrangement can be readily and economically accommodated by changing the partition wall.
Patent CA-2226172-A1 (CA)
Inventor: KNOP REINHARD
IPC: B05C11/04
Filed: 1997-04-26
Abstract: Prior art systems for supporting the metering component (3) of a coating device include a flat strip (5) as the support, the front edge (7) region of which is continuous and has a series of longitudinal slots. A set of adjusting components engage with the tongues (8) between the slots. According to the invention, the supporting strip (8) is made of spring sheet steel, the tongues (8) are firmly clamped at their end away from the metering component (3) and the continuous front edge (7) is fitted movably towards the metering component (3) between guide strips (11, 12). The adjusters (14, 17) engaging with the tongues (8) produce a flexion perpendicular to the extension plane of the tongues (8).
Patent CA-2226233-A1 (CA)
Inventor: MOHRI MEHRYAR
IPC: G06F40/00
Filed: 1998-01-05
Abstract: A pattern recognition system and method for optimal reduction of redundancy and size of a weighted and labeled graph presents receiving speech signals, converting the speech signals into word sequences, interpreting the word sequences in a graph where the graph is labeled with word sequences and weighted with probabilities and determinizing the graph by removing redundant word sequences. The size of the graph can also be minimized by collapsing some nodes of the graph in a reverse determinizing manner. The graph can further be tested for determinizability to determine if the graph can be determinized. The resulting word sequence in the graph may be shown in a display device so that recognition of speech signals can be demonstrated.
Patent CA-2227594-A1 (CA)
Inventor: DESAI NITIN V
IPC: A61M15/00
Filed: 1996-07-25
Abstract: A tribo-inhaler (100) having a container portion (104) for electrostatically retaining a predefined dose of medicament powder and extracting the medicament powder by inhaling air through the container portion.
Patent CA-2228538-A1 (CA)
Inventor: BRASS JACK
IPC: G01R19/14
Filed: 1998-02-04
Abstract: A LED cartridge assembly for use in a polarity testing probe fits into a cavity in the handle of the probe with first and second assembly contacts to contact the first and second testing probe contacts, respectively.  The handle is transparent through to the cavity.  The assembly has two LEDs, the first LED conducting when current flows in one direction, the second LED conducting when current flows in the opposite direction. The assembly has a transparent holder with wells to receive the LEDs. The assembly has a spring contact at one end and a button contact at the other.  The assembly can be used to easily convert existing non-polarity testing probes to polarity testing probes. The assembly can be used with packages that contain two LEDs as an integrated unit for placement in a single well of the holder.
Patent CA-2230641-A1 (CA)
Inventor: PUSCH MARTIN
IPC: A61G5/04
Filed: 1998-02-27
Abstract: A manually propelled vehicle has a power assisted drive wheel assembly coupled to a stationary chassis and a control system for actuating the powering.  The drive wheel assembly is integrated with a gearless electric motor.  The motor includes a stator and a rotor rotatable relative to the stator.  The drive wheel assembly includes a stationary wheel support coupled to the chassis and a rotatable drive wheel rotatably mounted to the stationary wheel support.  The drive wheel has an outer rim and an inner ring, the outer rim being connected to the inner ring by support members.  The stationary wheel support includes a first annular well for housing the control system and a power source, and a second annular well formed concentrically around the first annular well.  The stator is mounted to the stationary wheel support in the second annular well and the rotor is mounted to the inner ring, which is rotatably coupled to the distal portion of the stationary wheel support via bearings.  The drive wheel freely rotates relative to the stationary wheel support when no power is applied to the electric motor or if the motor fails.   A grip ring is connected to the drive wheel. The control system includes a torque sensor for detecting torque applied by the grip ring.  The signal from the torque sensor is used as a variable for activating the motor.
Patent CA-2230938-A1 (CA)
Title: Diverter valves with integral back flow preventer and inlet and outlet check valve mechanisms and improvements therefor
Inventor: BREDA SILVANO
IPC: E03C1/04
Filed: 1998-02-26
Abstract: A cartridge for a valve housing having outlets, the cartridge comprising a stationary body sleeve for fixed insertion within the housing and having outlet ports permanently aligned with the outlets of the housing, a moveable substantially hollow stem sleeve inserted within the stationary body sleeve and having an opening selectively alignable with the ports of the stationary body sleeve, the body sleeve and hollow stem being connected to one another by a retaining ring which aligns and maintains the cartridge as a unit in the housing. The diverting valve may be installed as a deck mounted fixture in atub, whirlpool, soaking bath, spa, roman tub, or the like wherein the tub spout is located below the flood line rim of the respective fixture wherein the divertingvalve can be repaired by replacing the cartridge from the top of the valve by removing the handle and replacing the cartridge in its entirety.
Patent CA-2231337-A1 (CA)
Inventor: LEONARD DANIEL
IPC: H04B7/216
Filed: 1996-08-23
Abstract: The object of the invention is a high performance satellite telecommunication method which minimises the costs of using space resources by means of a technique which includes adding, in the frequency band of a satellite repeater or repeater portion used for broadcasting an analog or digital television programme, telecommunications signals that are characterised by the spread spectrum modulation of the information carried by said signals, by a frequency offset of their carriers in relation to the television signal carrier, by the use of a frequency band that minimises the influence of said telecommunication signals on the performance of the television programme broadcasting and that also reduces the interference introduced by the modulated television signal into the telecommunication signals, and by a substantially normal division of the power associated with the space segment used for broadcasting said television programme, between the telecommunication signals and the modulated television signal.
Patent CA-2234943-A1 (CA)
Inventor: KOSTANIAN ARTAK ERANOSOVICH
IPC: B01D11/04
Filed: 1996-10-11
Abstract: This process for multi-phase extraction is carried out in an extraction apparatus comprising a multiplicity of stages connected in series, wherein each stage comprises an extraction and a reextraction chamber. In the extraction chamber, a raffinate phase is brought into contact with an extractant, which is reextracted, in contact with an extract phase, in a reextraction chamber. In the course of the process, the extractant is conveyed in cross-flow to the extract and raffinate phases within the same stage in each case, whilst the raffinate and extract phases are conveyed through some or all of the stages in counter-current flow.
Patent CA-2236236-A1 (CA)
Title: Substituted sulfonylalkanoylamino hydroxyethylamino sulfonamide retroviral protease inhibitors
Inventor: DEVADAS BALEKUDRU
IPC: C07D277/62
Filed: 1996-11-13
Abstract: Selected sulfonylalkanoylamino hydroxyethylamino sulfonamide compounds are effective as retroviral protease inhibitors, and in particular as inhibitors of HIV protease. The present invention relates to such retroviral protease inhibitors and, more particularly, relates to selected novel compounds, composition and method for inhibiting retroviral proteases, such as human immunodeficiency virus (HIV) protease, prophylactically preventing retroviral infection or the spread of a retrovirus, and treatment of a retroviral infection.