baber/WOPTO huggingface dataset:
Patent CA-2065660-C (CA)
Title: Torque control mechanism for wrenches and the like
Inventor: LARSON JOHN K
IPC: B25B23/159
Filed: 1992-04-09
Granted: 2003-07-22
Abstract: A torque control mechanism for wrenches and the like in which a pivot block has one end rockably engaging a force transmission member, an axially movable plunger has one end rockably opposing a second end of the pivot block, a ball screw carried by the plunger has a control ball element engaging the second end of the pivot block, a balance cam carried by the plunger provides seat for a coiled compression spring having its opposite end engaged by an antifriction device permitting the spring to turn for adjustment purposes, a rotatably adjustable transfer screw engages the antifriction device and is threaded through a stop adjusting nut mounted in the distal end portion of tubular housing for the mechanism. The distal end portion of the transfer screw is secured in an end cap fixed within a distal end of a handle mounted on the housing; and the components of the mechanism provide a continuous passage therethrough for respective adjustment wrenches to be applied from the handle end of the tool to respectively the ball screw, a ball screw lock screw, and to said balance cam.
Patent CA-2068371-C (CA)
Title: Step gradient anti-iridescent coatings
Inventor: PROSCIA JAMES W
IPC: C03C17/34
Filed: 1992-05-11
Granted: 1997-02-11
Abstract: A glazing article comprises a substrate bearing a substantially transparent coating comprising an optically functional layer and a thinner anti-iridescence layer undercoat mediate the optically functional layer and the substrate.   The anti-iridescence layer eliminates or substantially reduces iridescence and, in addition, is readily designed to make the overall coating colorless or to provide a substantially uniform, muted color.   The anti-iridescence layer comprises a high refractive index zone on the substrate, having a refractive index higher than that of the substrate.  Multiple gradient step zones are stacked on the high refractive index zone, including a low refractive index zone.  A second gradient step zone having a refractive index higher than that of the first gradient step zone is positioned on the low refractive index zone, such that the low refractive index zone is directly sandwiched between the two higher refractive index zones.   Anti-iridescence is provided for a wide variety   of   optically   functional   layers   without significant  impairment  of  the  optical  performance thereof.
Patent CA-2072650-C (CA)
Inventor: YETTER JERRY JOSEPH
IPC: A61F13/15
Filed: 1990-12-07
Granted: 1997-07-15
Abstract: Vêtements hygiéniques jetables comprenant une couche supérieure et/ou une couche arrière faites de polymères obtenus à partir d'acide glycolique, d'acide lactique et de mélanges de ces deux acides. L'invention comprend aussi des articles d'hygiène jetables à centre absorbant fait de cellulose oxydé. Des couches, des serviettes hygiéniques, des protège-dessous, etc, fabriqués à partir du matériel décrit ci-dessus sont présentés.
Patent CA-2074414-C (CA)
Title: Hydraulic valve clearance compensation arrangement for an internal combustion engine
Inventor: BUDDE VOLKER
IPC: F01L1/25
Filed: 1992-07-22
Granted: 1994-10-25
Abstract: A hydraulic valve clearance compensating arrangement for an internal combustion engine includes a clearance compensating element which is axially movable up and down in a cylindrical lifter guide.  The element includes first and second hollow cylinders which are mutually sealed and axially elastically supported on each other by a compression spring.  A substantially cup shaped housing concentrically surrounds the cylinders.  The housing has a flat housing base and at least one lubricant delivery opening in its outer circumference.  The first hollow cylinder and the lubricant delivery opening are connected for the exchange of liquid.  The lubricant delivery opening is provided with a first check valve at the side of the opening which is located towards the hollow cylinders for permitting the flow of lubricant through the opening towards the first hollow cylinder and blocking a back flow of lubricant from the first hollow cylinder through the opening.  The housing, in at least a section of its outer circumference, has an outer diameter which decreases towards the housing base starting in the region of the delivery opening.  This provides for a wedge-shaped gap between the housing and the cylindrical lifter guide and an automatic filling of the clearance compensating element with lubricant.  Valve clicking during start-up of the engine is prevented and special lubricant supply bores in the cylinder head are obviated.
Patent CA-2077326-C (CA)
Title: Scan image processing
Inventor: ROBIDEAU ROBERT PAUL
IPC: H04N1/407
Filed: 1992-09-01
Granted: 1997-07-15
Abstract: The method of scanning a document by providing a test patch to be scanned, initially scanning the test patch and storing the signal response of each reading element to the test patch in a pixel threshold table, providing a document to be scanned, scanning the document and comparing the signal response of each reading element with the corresponding signal response in the pixel threshold table, and printing a mark or not printing a mark in response to the comparison for each reading element. The method includes an extended threshold table to cover halftone cells.
Patent CA-2086189-C (CA)
Title: Gas lighter with safety device
Inventor: UEMATSU KENJIRO
IPC: F23Q2/34
Filed: 1992-12-23
Granted: 1996-01-09
Abstract: A gas lighter with a safety device which is composed of a lock lever and a resilient leaf.  The resilient leaf is defined, on the upper portion of a lighter body and on the path of a depressible actuating means, by a pair of slits formed parallel to each other and longitudinally.  The resilient leaf, which is slidably surrounded with the lock lever, is at the upper end thereof incurved towards the lighter body.  When the lock lever is positioned at the lowermost end of the slits, i.e., a locked position, the incurved portion of the resilient leaf is engaged with a recess at the lowermost end of the actuating means, thereby preventing the depression of the actuating means.  When the lock lever is thrust uppermost along the slits, i.e., up to an unlocked position, the incurved end of the resilient leaf is forcibly straightened, whereby the disengaged actuating means can be depressed.
Patent CA-2090504-C (CA)
Inventor: SCHMIDT WILLIAM
IPC: F27D99/00
Filed: 1993-02-26
Granted: 2001-05-01
Abstract: An electrically heated toolbox for heating hand tools that have been stored or used in a cold environment. The toolbox is a multiple drawer container which has installed therein heating  sheets integrally connected to an outside electrical power source, alternating current (AC) or direct current (DC). The heating sheets warm the hand tools by radiated heat or direct heat when the heating sheets are connected to the outside power source. A desired temperature may be obtained by using the rheostat temperature setting device. The toolbox may be connected to a standard AC plug connection, a DC vehicle battery or, if desired, a cigarette lighter outlet of a vehicle.
Patent CA-2092083-C (CA)
Inventor: DUTRA GERARD ANTHONY
IPC: C07D231/18
Filed: 1991-10-11
Granted: 1998-07-14
Abstract: The invention herein relates to substituted-arylpyrazole compounds according to formula (I), and agriculturally-acceptable salts and hydrates thereof wherein R1 is independently alkyl; cycloalkyl, cycloalkenyl, cycloalkylalkyl, or cycloalkenylalkyl; alkenyl or alkynyl; benzyl; and said R1 members substituted with halogen, amino, nitro, cyano, hydroxy, alkoxy, alkylthio, (a), (b), YR10, or NR11R12; R2 is haloalkyl; R3 is halogen; R4 is an R1 member, thioalkyl, alkoxyalkyl or polyalkoxyalkyl, carbamyl, halogen, amino, nitro, cyano, hydroxy, C1-10 hetecycle containing O, S(O)m and/or NR18 hetero atoms, aryl, aralkyl or alkaryl, (c), (d), YR15 or NR16R17 group and any two R4 groups combined through a saturated and/or unsaturated carbon, -(C = X)-, and/or hetero O, S(O)m and/or NR18 linkage to form a cyclic ring having up to 9 ring members which may be substituted with any of R4 members; X is O, S(O)m, NR19 or CR20R21; Y is O, S(O)m or NR22; R8-22 are hydrogen or one of the R4 members; m is 0-2 and n is 1 to 5, herbicidal compositions containing same, herbicidal methods of use and processes for preparing said compounds.
Patent CA-2094411-C (CA)
Title: Dental appliance for treatment of snoring and obstructive sleep apnea
Inventor: HALSTROM LEONARD WAYNE
IPC: A61F5/56
Filed: 1993-04-20
Granted: 1996-04-16
Abstract: A dentally retained intra-oral appliance worn at night for treatment of snoring and obstructive sleep apnea. The  appliance  maintains  the  patient's  mandible  in  an anterior, protruded position to prevent obstruction of the pharyngeal airway.  The appliance allows a limited degree of lateral movement of the mandible relative to the upper jaw in the protruded position to prevent aggravation of the patient's tempromandibular joint and associated muscles and ligaments.  The appliance preferably consists of an upper bite block conforming to the patient's maxillary dentition, a lower bite block conforming to the patient's mandibular dentition, and a connecting assembly secured to an anterior region of the upper and lower bite blocks for adjustably coupling the upper and lower bite blocks together.
Patent CA-2099067-C (CA)
Title: Plane light source unit
Inventor: OE MAKOTO
IPC: G02F1/13357
Filed: 1993-06-23
Granted: 2001-02-13
Abstract: A plane light source unit which may be advantageously used as a backlighting means for a liquid crystal display device, and which comprises a transparent light guide having a side end surface as a light incident surface, a surface perpendicular to the light incident surface as a light emitting surface, and a light reflecting layer provided on an opposite surface to the light emitting surface; and a second element having a large number of prism units formed on the light emitting surface of the transparent light guide which receives the light emitted from the transparent light guide and emits the light in a predetermined direction; wherein at least one of the light emitting surface and the opposite surface of said transparent light guide has a directional light emitting function which emits the incident light from the light incident surface of the transparent light guide in an oblique direction to the incident light and has a regulation function which makes the luminance of the light through the light emitting surface uniform over the whole surface thereof.
Patent CA-2104590-C (CA)
Inventor: RUSSO DAVID A
IPC: B32B9/00
Filed: 1992-12-21
Granted: 2007-05-08
Abstract: A coated-glass article is prepared by the chemical-vapor deposition of a mixture of a tin oxide precursor, a silicon dioxide precursor and an accelerant such as methyl phosphite at deposition rates higher than 350 .ANG./sec. onto glass having a temperature from 450 to 650°C. The layer of material deposited can be combined with other layers to produce an article with specific properties such as controlled emissivity, refractive index, abrasion resistance, or appearance.
Patent CA-2105593-C (CA)
Inventor: SAKODA NAOKAZU
IPC: B01J20/10
Filed: 1993-03-04
Granted: 1997-02-25
Abstract: A novel silver-containing tobermorite usable in place of silver-, copper- or zing-incorporating zeolites and having ethylene-adsorbing ability and antibacterial properties.  Stated more particularly, a silver-containing tobermorite having a composition of  [Ca5-y/2Agy+zMx-z(Si?-xAlxO1?H2)  4H2O, 0 ? X         ? 1, 0.001 ? Y ? 2, 0 ? Z ? 0.1, M is a monovalent cation]  and prepared from a tobermorite [Ca5Mx(Si?-xAlxO1?H2)  4H2O, O ?  X ? 1, M is as defined above] by exchanging Ca2+, or Ca2+ and a monovalent cation which are interlayer ions of the tobermorite for silver ion.  The silver-containing tobermorite is excellent in heat resistance, water resistance and mechanical strength, and also outstanding in ethylene-adsorbing ability and antibacterial properties.
Patent CA-2111203-C (CA)
Inventor: RIGAZZI PIER ANDREA
IPC: F02B3/06
Filed: 1992-06-29
Granted: 2001-10-23
Abstract: The method allows to move, for exam-ple with a rotative motion, a member or a group of members by moving another member or group of members with a reciprocating rec-tilineal motion by means of the interaction be-tween magnets (1, 2) or groups of magnets (1i, 2i) fixed to the said members or group, of members. If the reciprocating rectilineal mo-tion is obtained by connecting one of the two groups of magnets to the pistons of a re-versed-star two stroke engine and to a me-chanical energy restituting system (8), a high-efficiency propulsing means is realized, which is suitable for engine-traction, which does not need a crank-shaft, a lubricating system; water cooling system; alternator or torque converter; and is automatically switched off when the vehicle is not in mo-tion. Its work-torque can be varied by vary-ing the distance between said restituting sys-tem (8) and members (14) named cursors, connected to pistons (5). Easy and cheap to make, it causes little-pollution and is suit-able even for using hydrogen as fuel. In which case, its pollution products are insign-ificant or equal to zero.
Patent CA-2115237-C (CA)
Title: Selectors for data visualization
Inventor: EICK STEPHEN GREGORY
IPC: G06F3/048
Filed: 1994-02-08
Granted: 1999-03-30
Abstract: Data selectors for selecting values which affect display of data. The data selector represents a set of values, and selection is done by interactively "painting" a portion of the data selector. The values which correspond to the painted portion are activated. Species of the data selectors include discrete data selectors, continuous data selectors, and multidimensional data selectors. An exemplary discrete data selector is employed in apparatus for displaying information about a very large number of entities. The apparatus includes very small entity representations representing entities such as lines of text contained in columns representing a context such as the files which contain the lines. The discrete data selector represents the values of an attribute of the entities. Painting the discrete data selector activates the entity representations having the corresponding values. A code viewer permits detailed views of information about the entity represented by a selected entity representation. There are further animated display modes and techniques for remapping colors onto the selector fields. Applications of the apparatus includetesting and maintenance of software and selection of programs in interactive TV systems.
Patent CA-2121368-C (CA)
Inventor: KEMPF DAVID
IPC: G01G11/08
Filed: 1993-09-30
Granted: 1997-10-21
Abstract: An impact flowmeter (10) includes a housing (12) having an inlet end, an outlet end, and an interior region (15), an inlet chute (18) having an open end for discharging material into the interior region (15) being coupled to the inlet end of the housing (12), a load cell (40) coupled to the housing (12) for generating an output signal, and an impact plate (32) coupled to the load cell (40). The impact plate (32) is aligned with the inlet chute (18) so that the material entering the housing (12) strikes the impact plate (32). The impact plate (32) deflects the load cell (40) in a measurement direction (64) to change the signal from the load cell (40) based on the flow rate of material. The flowmeter (10) further includes a stop (56) for biasing the load cell (40) in the measurement direction (64) to establish a preload condition on the load cell (40), a load cell mounting bracket (34) located outside the interior region (15).
Patent CA-2124911-C (CA)
Inventor: GRIFFOUL THOMAS
IPC: A61F13/15
Filed: 1994-06-01
Granted: 2005-03-22
Abstract: An apparatus and method for making absorbent products in which a first material, such as absorbent fluff formed from wood pulp, is introduced into a vacuum forming chamber. A portion of the fluff is deposited into the cavity of a mold transported through the forming chamber by a forming wheel so as to form a layer of pure fluff within the bottom of the mold cavity. A second material, such as superabsorbent particles or heat stabilized fibers, is introduced into the forming chamber so that streams of the first and second materials collide within a mixing zone.      As the mold continues it travel through the forming chamber, a mixture of first and second materials from the mixing zone is deposited within the mold cavity, thereby filling it. The portion of the mixture that extends above the surface of the mold is scraped off by a scarfing brush that directs the mixture back into the mixing zone, thereby creating turbulence that ensures thorough mixing of the two materials. The result is an absorbent product having a first layer formed by pure first material and a second layer formed by a mixture of the first and second materials.
Patent CA-2125331-C (CA)
Title: Optical disk, and information recording/reproduction apparatus
Inventor: SATOH ISAO
IPC: G11B7/09
Filed: 1994-06-07
Granted: 2000-01-18
Abstract: In an optical disk having a recording plane with a spiral first track and a spiral second track, information being recorded into and/or reproduced from said first and second tracks, the first track is formed in a groove-like shape, the second track is formed between adjacent first tracks and in a land-like shape, and information is recorded in the first and second tracks in different modulation methods.
Patent CA-2127834-C (CA)
Inventor: KAWAKAMI NORIKO
IPC: H02J3/18
Filed: 1994-07-12
Granted: 1997-06-03
Abstract: A control system for a power converter which is composed of a plurality of self-turn-off devices and is connected to an outer system through a transformer provided with a core.  The control system includes an output voltage instruction value generating circuit for generating an instruction value for an output voltage of the power converter.  The control system also includes a correction circuit for correcting the instruction value based on a magnetic flux relating value of the core of the transformer to generate a corrected instruction value for the output voltage of the power converter.  The control system further includes a gate pulse generating circuit for generating a gate pulse based on the corrected instruction value.  The gate pulse is applied to the self-turn-off devices of the power converter to control the output voltage of the power converter.  Whereby DC magnetization of the transformer is suppressed even for the case when DC component is generated by the outer system.
Patent CA-2131741-C (CA)
Inventor: KETTLER DANIEL JAMES
IPC: A01D34/73
Filed: 1994-09-09
Granted: 1997-10-07
Abstract: A mowing mechanism having a spindle rotatively driven by a power source, a blade having a radially inner portion coupled for rotation with the spindle and a radially outer portion for cutting vegetation, a housing within which the blade rotates, and a disc operatively carried within the housing for rotation with the blade and having a radially outer portion spaced above the blade.  The disc includes an inner portion extending radially inwardly from the outer portion to a position proximate the blade, the inner and outer portions of the disc serving to confine air and clippings near the outer portion of the blade.  The rotating disc prevents accumulation of the grass clippings beneath the disc and housing, and enhances airflow within the housing due to viscous drag or friction between the disc and the air within the housing.  Deflectors carried by the disc are designed to further enhance airflows and generally deflect clippings back toward the blade for mulching.
Patent CA-2134845-C (CA)
Inventor: CHESNUT JOHN M
IPC: A63H3/00
Filed: 1994-11-01
Granted: 1998-07-14
Abstract: The present invention is for a bank which has a viewable serpentine coin path through which coins are deposited into a coin reservoir.  The serpentine coin path has a major slot for the transportation of the coins into the reservoir and at least one minor slot through which the coins can be viewed as they travel down the serpentine path to the reservoir.  The slot and reservoir are particularly well suited for incorporation into an animal bank.
Patent CA-2137374-C (CA)
Title: Spinal therapy apparatus
Inventor: ROUSSOULY PIERRE
IPC: A61B17/70
Filed: 1993-06-18
Granted: 1997-05-20
Abstract: An apparatus comprising vertebral anchoring elements, e.g. a bone screw (1) or a hook (2), with a threaded cylindrical portion (5) and a locking plate (7). A nut (8) may be screwed onto the threaded cylindrical portion (5) to tighten the tightening portion of a slide (4) on a rigid connecting rod (3) with a circular cross-section. The rod (3), the slide (4) and the anchoring element (1, 2) may be sufficiently rigidly connected by means of non-slip projections on the engaged side of the locking plate (7), on the corresponding side of the slide (4), and on the surface thereof which surrounds the rod (3). The stiffness of the apparatus may thus be enhanced, whereby improved support of the vertebrae and easier fitting and adjustment of the apparatus may be achieved.
Patent CA-2140559-C (CA)
Inventor: BAKER JAMES ALLAN
IPC: H05B41/36
Filed: 1995-01-16
Granted: 2007-04-10
Abstract: An energy saving lighting control system for operating fluorescent light fixtures is provided with means for controlling the light level according to the light required for the task being done in the area.      Ambient light available from sources outside of the controlled area such as daylight can be harvested to reduce the amount of artificial lighting required. A method of providing sensor inputs to detect occupancy in the controlled area provides control signals to the lighting control system which are used to reduce the light level or turn light fixtures off at times when the area is not occupied. A method of providing a central control of the operation of the lighting system can provide time-of-day scheduling, can provide minimum and maximum lighting levels, and can provide calibration and set-points for response times to various sensor inputs. In order to minimize the installation cost of the lighting control system, the system is provided with components that can be controlled using signals carried along the power conductors that provide primary operative power to the lighting fixtures. Special circuitry in the ballasts for fluorescent lamps provides a starting sequence and operating conditions that maximize the life of the lamps which therefore minimizes maintenance costs.
Patent CA-2142842-C (CA)
Inventor: JASINSKI LEON
IPC: G06V10/98
Filed: 1993-07-19
Granted: 1996-05-14
Abstract: A method of transmitting and receiving encoded data generated from input data comprising readable text characters (102) in a communication system having an optical character recognition element (206) and a graphic encoding element (208), the com-munication system also having a transmitter (114) and a receiver (116), comprises accepting (602) the input data comprising the readable text characters (102) by a facsimile input (202).  The method further comprises encoding (620, 622) as character code for-mat data the readable text characters (102) received that are recognizable by the optical character recognition element (206), and encoding (610, 612, 614) as graphic code format data the readable text characters (102) received that are not recognizable by the optical character recognition element (206).  The method further comprises  assembling (632) the character code format data and the graphic code formate data into an output data stream, the output data stream including information that describes original sizes and positions relative to one another of the readable text characters (102).
Patent CA-2148856-C (CA)
Title: Process for treating waste water effluent
Inventor: GRAY JOHN M
IPC: C02F1/72
Filed: 1995-05-08
Granted: 2004-09-21
Abstract: Waste water effluent streams are treated with hydrogen peroxide and ultraviolet radiation. Hydroxyl ions formed by action of W on H2O2 reduces BOD, COD, AOX and color in effluent. In the case of pulp mill effluent, some or all of the effluent can then be recycled to the pulp mill.