baber/WOPTO huggingface dataset:
Patent CA-2091895-C (CA)
Title: Method and apparatus for constructing seawalls and docks
Inventor: DOW JOHN M
IPC: E02B3/06
Filed: 1991-09-24
Granted: 1996-12-31
Abstract: Method and apparatus for making a dock or seawall (8). A forming float device, comprising a forming deck (120) and bal-lasting means (110, 220) therebelow, floats in a body of water a selected distance from the shoreline. A first wall section (22) is formed on the top surface (200) of the forming deck (120), such that the first wall section (22) rests horizontally on the surface of the deck (120), and comprises a plurality of wall pieces (5) whereby the wall pieces (5) are aligned and shaped appropriately to together provide a uniform wall. Each wall piece (5) is fastened by fastening means (314) to the top surface of the forming deck (120). Earth reinforcing strips (40) are installed in each wall piece (5) such that the earth reinforcing strips (40) extend upwardly from the wall pieces (5) generally perpendicular to the planes defined by the wall section (22) and forming deck (120) and the earth reinforcing strips (40) are secured in that upward position. Alternatively, a bundle of cylindrical containers (400) may be att-ached together and to the wall section (22).  The forming float device is rotated 90° by means of ballasting means (110, 220) so that the wall section (22) assumes a generally perpendicular position and the wall section (22) is then rested on a pre-selected lo-cation of the floor of the body of water. Backfill (80) is placed between the shoreline (35) and the wall section (22) such that the earth reinforcing strips (40) and wall pieces (5) are made to stabilize and maintain position. (Or, if cylinders (400) are used, back-fill (80) is placed in and around the cylinders (400)). The forming float device is then freed from the wall section (22) by unfasten-ing the fastening means (40). Finally, the forming float device is rotated to its original orientation and refloated to the surface of the water by means of the ballasting means (110, 220).  The foregoing steps are repeated for each successive wall section (22, 10, 28) to comprise the dock or sea wall (8) and each successive wall section (22, 10, 28) is positioned on the floor of the body of wa-ter adjacent to the previously placed section.
Patent CA-2095151-C (CA)
Title: Oil sorbent
Inventor: SMITH STEPHEN ROBERT
IPC: C09K3/32
Filed: 1991-10-29
Granted: 1998-06-23
Abstract: The present invention relates to an oil sorbent comprising a matrix of interming led non-woven polyolefin fibres, shredded polyolefin film and cellulosic fibres. In preferred embodiments, the cellulosic fibres are wood pulp fibres, the polyolefin fibres are polypropylene fibres and the polyolefin film is polyethylene film. The inven tion also provides a process for the sorption of oil comprising the steps of contacting the oil with a sorbent, said sorbent comprisi ng a matrix of intermingled non-woven polyolefin fibres, shredded polyolefin film and cellulosic fibres. The oil sorbent is usefu l for recovery of oil, especially hydrocarbon oil, from oil spillages, especially spillages into water.
Patent CA-2095761-C (CA)
Title: Portable antenna mast support system
Inventor: GROPPER DANIEL R
IPC: E04H12/20
Filed: 1993-05-07
Granted: 1996-06-18
Abstract: This invention relates to a portable, easy-to-put-together, strong, durable mast support system for use in field operations where an antenna mast, or other similar mast, needs to be safely and quickly assembled, raised and supported.  The mast support system is comprised of few pieces which stack in a compact longitudinal bundle for easy transportation to or from a site of use or for storage.  When packed for shipment, the entire assembly may easily be placed on the top of a car or other vehicle.  The mast support system is assembled through use of slideably interlocking pieces with hitch pins or clips.  No special tools are required.  The mast support system features a rotatable mast base alignment and support receptacle to enable one person to safely raise and lower a long mast after an antenna or other device has been safely affixed to the top of the mast when the mast is still at a safe horizontal ground-level position.      The primary anticipated use for the mast support system is when free-standing quick setup masts are required, is either an emergency or permanent installation.  The system may be used in backyards, driveways, fields, parking lots, and on platforms or rooftops, or in other suitable areas.
Patent CA-2096420-C (CA)
Title: Optical device
Inventor: JENKINS RICHARD MICHAEL
IPC: G02F1/313
Filed: 1991-12-02
Granted: 2002-05-07
Abstract: An optical device (l0) for use in beamsplitting, recombination and related applications incorporates a rectangular multi-mode waveguide (20) connecting a first coupling waveguide (l8) to two second coupling waveguides (22,24).The first coupling waveguide (18) operates in its fundamental mode and provides an input which excites a series of symmetric modes of the multi-mode waveguide (20). Modal dispersion along the multimode waveguide (20) provides for the input excitation (70a) to be trans-formed into separate output excitations (75a,75b) centred on respective second coupling waveguides (22,24).The radiation inten-sity distribution (75) goes to zero at multimode waveguide end wall regions (54) between the second coupling waveguides (22,24). This minimises reflection and increases beamsplitting efficiency.The device (10) may be operated in reverse as a beam combiner. Further embodiments include a phase-locked laser array (240) in which the second coupling waveguides (258) provide gain and a second multimode waveguide (260) provides phase correction.
Patent CA-2097272-C (CA)
Title: Angular velocity sensor and camera including the same
Inventor: FUSHIMI MASAHIRO
IPC: G01C19/5719
Filed: 1993-05-28
Granted: 1998-08-04
Abstract: In an angular velocity sensor, there are provided a flat substrate having a flat surface, a movable portion provided to a portion of the substrate and adapted to be vibrated in a direction perpendicular to the substrate surface, a first weight portion provided to one portion of the movable portion, second weight portion provided to another portion of the movable portion, first and second beam portions extending in first and second directions which are different from each other in the substrate surface and supporting the first and second weight portions, respectively.  The movable portion is vibrated in the direction perpendicular to the substrate surface.  Deformations of the first and second beam portions generated upon reception of Coriolis' forces when the substrate is rotated about the first and second directions as rotational axes are detected.  Angular velocities of rotations about the first and second directions as the rotational axes are detected on the basis of the deformations of the first and second beam portions.
Patent CA-2100285-C (CA)
Title: Hydroxyphenylpropionic ester having novel crystal structure
Inventor: INOUE KIKUMITSU
IPC: G01N23/20
Filed: 1993-07-12
Granted: 2004-03-16
Abstract: A hydroxyphenyl propionic ester represented by the formula of (see formula I) which has a crystal structure showing a sharp X-ray diffraction peak at a diffraction angle 28 - 7.9° by X-ray diffraction measurement using an X-ray of a Cu-K.alpha. wavelength. This novel crystal exhibits largely advantageous effects in industrial production and usage of the ester because of its high purity, high quality, excellent filterability owing to the large crystal growth, and excellent fluidity owing to the large bulk specific gravity.
Patent CA-2100563-C (CA)
Title: Antimicrobial lubricant including fatty acid and quaternary ammonium compound
Inventor: LIU CHUNG-TSING
IPC: C10M/
Filed: 1991-09-25
Granted: 2002-04-16
Abstract: Stable concentrated liquid and solid antimicrobial lubricating compositions can be formulated which include 5 to 40 wt% of a C6-24 fatty acid, 10 to 40 wt% of a quaternary ammonium salt, an amount of an alkaline source sufficient to increase the pH of the composition to at least 8, and optionally about 0.1 to 10 wt% of an amine. The balance of the liquid form of the composition constitutes water. The lubricating compositions are particularly useful on the load bearing surfaces of conveyor belts used in food preparation where a combination of effective lubricity and efficacious antimicrobial activity are neces-sary.
Patent CA-2104280-C (CA)
Title: Process for deinking wastepaper utilizing organoclays formed in situ
Inventor: MAGAURAN EDWARD D
IPC: D21C5/02
Filed: 1993-08-17
Granted: 1997-11-18
Abstract: A process for deinking wastepaper, which comprises: (a) forming an organoclay deinking agent in an aqueous system; (b) contacting ink from wastepaper in the aqueous system with an amount of the organoclay deinking agent effective to deink the wastepaper; and (c) recovering deinked paper pulp from the aqueous system.
Patent CA-2110703-C (CA)
Title: Process and culture medium for the production of cells infected by a multiple sclerosis associated virus
Inventor: PERRON HERVE
IPC: C07K14/035
Filed: 1993-04-02
Granted: 2001-12-04
Abstract: A culture or cell line infected with a virus strain associated with multiple sclerosis (MS) is prepd. by (1) taking a body sample from an MS patient; (2) culturing this in medium favouring growth of infected cells to produce a culture of primary infected cells; (3) subjecting a sample of this (or of derived subculture) to successive passaging. The culture medium used contains an antibody (Ab) against beta-interferon (or an antigenically similar cpd.) which acts as an inhibitor of viral expression, to allow persistent expression of virus and propagation of the viral strain in the culture or cell line. Also new are (1) prodn. of continuous cultures or cell lines infected with the viral; (2) culture media contg. Ab; (3) cell withdrawn from (or belonging to) cultures produced as above (also their derivs. in which the genome has been modified without affecting the phenotype); (4) method for transactivation of MS-related virus in such cells; (5) virus fractions isolated from these cells; and (6) immunological reactant comprising mono- or poly-clonal antibodies directed against antigenic viral extracts.
Patent CA-2112140-C (CA)
Title: Process for preparing pyromellitic dianhydride
Inventor: WAGNER WERNER
IPC: C07C51/265
Filed: 1993-12-22
Granted: 1998-09-15
Abstract: The invention relates to a process for preparing pyromellitic dianhydride (PMDA) by heterogeneously catalyzed oxidation in the gas phase by means of a gas containing molecular oxygen. The process involves oxidizing benzaldehydes which are 2,4,5-trialkylated by Cl- to C3-alkyl groups or mixtures of benzaldehydes which are 2,4,5-trialkylated by Cl- to C3-alkyl groups and benzenes which are 1,2,4,5-tetraalkylated by Cl- to C3-alkyl groups in the presence of a catalyst. The catalyst contains as active components 5% to 95% by weight of one or more transition-metal oxides of sub-group IV of the Periodic Table of the Elements, from 1% to 50% by weight of one or more transition-metal oxides of sub-group V of the Periodic Table of the Elements. The catalyst also contains from 0% to 10% by weight of one or more oxides of elements of main group I of the Periodic Table of the Elements and/or from 0% to 50% by weight of one or more oxides of elements of main groups III, IV and V of the Periodic Table of the Elements and of elements of sub-groups VI and VII of the Periodic Table of the Elements. The indicated percentages by weight are based in each case on the total weight of the active components and add to 100% by weight.
Patent CA-2119524-C (CA)
Title: Self contained gas powered surgical apparatus
Inventor: SAVAGE ROBERT C
IPC: A61B19/00
Filed: 1994-03-21
Granted: 2001-06-05
Abstract: A self contained gas powered endoscopic surgical apparatus is provided for placing lateral lines of surgical fasteners into body tissue. The apparatus includes an anvil member and a surgical fastener cartridge member mounted to the distal end of an elongated endoscopic portion. A tubular collar of the endoscopic portion moves distally to engage the anvil member and bias the anvil member and the cartridge member into cooperative alignment, thereby clamping body tissue to be fastened between the anvil member and the cartridge member. A self contained pneumatic system is disposed in the surgical apparatus and is actuable to eject and/or form the surgical fasteners in the clamped body tissue. The apparatus further comprises a locking means for preventing approximation of the anvil member and the cartridge. In one embodiment a clamping interlock is shown which prevents approximation of the jaws when the jaws are either misaligned or improperly inserted into the instrument. In a second embodiment a clamping interlock is shown which directly engages the tubular collar preventing approximation of the jaws when a cartridge member is not fully inserted. In a third embodiment a clamping interlock is shown which directly engages the tubular collar when an unfired cartridge is not present or properly inserted into the instrument.
Patent CA-2120600-C (CA)
Title: Method for transmitting broadcast information in a digital control channel
Inventor: RAITH ALEX K
IPC: H04J3/12
Filed: 1993-09-03
Granted: 2002-01-22
Abstract: The present invention provides a method for transmitting information on a communications channel, e.g., a digital control channel between a base station and a mobile station in a cellular system. The method includes the steps of grouping the information into a plurality of information elements, providing at least one change flag to indicate whether the value of at least one of the information elements has changed, and transmitting the change flag and the information element over the communications channel.
Patent CA-2120804-C (CA)
Inventor: KOSUGI YUHEI
IPC: H01P5/02
Filed: 1994-04-07
Granted: 1997-12-09
Abstract: Assembling and checking microwave circuit modules is accomplished by storing results of checks of active elements after the manufacture, determining a combination of active elements according to the stored results or data, calculating the characteristic value of the determined combination according to the results of checks of the active elements in the combination, computing, if the calculated characteristic value is out of a predetermined range, a content and an amount of adjustment to be made in a substrate so as to correct the characteristic value to be in the predetermined range, and adjusting the substrate according to the result of computation.  By selecting an appropriate combination, the chips whose characteristic value falls outside of the predetermined range are saved from being discarded, so that a low cost microwave circuit module can be obtained at a high overall yield.
Patent CA-2123206-C (CA)
Inventor: VANBUSKIRK ELLOR J
IPC: C09D5/00
Filed: 1992-08-27
Granted: 1999-12-14
Abstract: Revêtement protecteur temporaire pouvant être soudé et formé, destiné à être utilisé sur des métaux. Ledit revêtement protecteur comprend un polymère à fonctionnalité base ou acide neutralisé, un lubrifiant et un solvant renfermant de l'eau et un alcool ne comportant pas plus de quatre atomes de carbone par molécule; le revêtement protecteur pouvant par conséquent sécher rapidement à des températures relativement basses tout en ayant un point d'inflammation à des températures supérieures à 100  F
Patent CA-2123350-C (CA)
Inventor: BIBLE SUSAN J
IPC: A47C21/00
Filed: 1994-05-11
Granted: 1996-12-10
Abstract: A decorative bed ruffle is capable of installation on a mattress foundation such as a box spring without removal of an upper mattress therefrom. A band of elastically stretchable material forms a closed loop adapted to be stretched to pass over the upper mattress and grippingly retained on the sides of the mattress foundation. The width of the band is such that top and bottom edge portions of the band will extend over and elastically grip top and bottom edge 5 of the mattress foundation, respectively. A decorative skirt is attached to the band ofmaterial in overlapping relation therewith, for covering at least part of a central portion of the band extending over the foundation sidewalls, and at least part of the space between the mattress foundation and a supporting floor surface. In addition to easing installation, the inventive bed ruffle provides greater retention on the foundation, permits adjustment of the skirt drop to accommodate differentheight bed frames and foundations, and can accommodate a range of mattress sizesand shapes.
Patent CA-2123911-C (CA)
Title: Dispositif de fixation oculaire
Inventor: SHER NEAL A
IPC: A61B17/02
Filed: 1992-11-16
Granted: 1998-11-24
Abstract: Il s'agit d'un instrument ophtalmique permettant d'immobiliser l'oeil du patient pendant une intervention ophtalmique. Cet instrument comprend un spéculum (20) qui s'appuie contre la cavité orbitale et un anneau de fixation (60) qui s'attache à l'oeil du patient et qui comprend à la fois un mécanisme (22) permettant de fixer l'anneau par rapport à l'oeil et un mécanisme (66) pour attacher et ajuster l'anneau au spéculum. Cet instrument peut comprendre un ou plusieurs niveaux à bulle (62) placés sur l'anneau de fixation et servant à indiquer l'orientation de l'anneau et à aider le chirurgien à orienter l'oeil du patient avant de fixer l'anneau au spéculum.
Patent CA-2132823-C (CA)
Inventor: SAKUMOTO HIDEKI
IPC: G11B15/675
Filed: 1989-10-27
Granted: 1996-06-11
Abstract: Provided is a cassette holder device in a tape recording apparatus having a body, which receives either one of more than two kinds of tape cassettes having different sizes, and loads thereof in the tape recorder body, comprising: a cassette holder member, having an insertion opening, for storing and holding therein a large size tape cassette; and a small size tape cassette guide member disposed rotatably so that it can project into the insertion opening of the cassette holder member from above the latter, having one of side surfaces facing one of side surfaces of an inserted small size cassette with a slight gap therebetween so as to regulate and guide the position of insertion of the small size tape cassette, the one side surface of the small tape cassette guide member guiding the one side surface of the small size tape cassette so as to introduce the latter into the holder member while the guide member is rotated upward by insertion force of a large size tape cassette which is inserted into the insertion opening of the holder member and is therefore retracted outside of an insertion path of the large size tape cassette.
Patent CA-2141622-C (CA)
Inventor: PAUL GERALD T
IPC: A47J27/022
Filed: 1995-02-01
Granted: 1997-12-30
Abstract: This invention pertains to cookware and more particularly to a cookware vessel in which the cooking surface reaches the desired cooking temperature in the shortest possible time, which has an increased bottom area available to absorb heat from a heating source, which maintains its rigidity over a longer period of time as contrasted to conventional constructions and, as a consequence, distributes heat more evenly throughout the bottom area, and which is more stable with respect to the heat source during use.
Patent CA-2146380-C (CA)
Inventor: MARKYVECH RONALD K
IPC: F16H59/14
Filed: 1995-04-05
Granted: 2000-10-03
Abstract: An adaptive control system/method for an at least partially automated mechanical transmission system (10) is provided for determining if selected upshifts into a target gear ratio are feasible (208) or not feasible (210) under current vehicle operating conditions and for prohibiting the initiation of not feasible selected upshifts. If upshifts determined to be feasible are not completed by the system, the logic rules by which upshift feasibility is determined are modified to render such rules less aggressive.
Patent CA-2147624-C (CA)
Inventor: CAMPBELL CAREY V
IPC: A61F2/06
Filed: 1993-12-10
Granted: 1999-04-20
Abstract: - A vascular graft in the form of a tube (11) or flat sheet of biocompatible material having an outer covering of deflectably secured material such as porous film, fibers (15), discrete pieces of material, or combinations thereof. Two different types of fibers may also be used. The vascular graft may be of tubular form for replacing or bypassing entire segments of veins or arteries or alternatively may be in the form of a flat sheet useful for repairing portions of the circumference of veins or arteries. The tube (ll) or flat sheet of biocompatible material and the outer covering of defectably secured material are preferably of porous poly-tetrafluoroethylene The inventive vascular graft is useful for dialysis access in that it offers a reduction in blood leakage when the vascular graft is punctured by a dialysis needle and the needle is subsequently removed. It is also useful for reducing suture hole bleeding resulting from holes created through the graft by penetration of the graft with a suture needle.
Patent CA-2147949-C (CA)
Inventor: MCCLEAN CHRISTOPHER WILLIAM
IPC: H02P1/32
Filed: 1995-04-26
Granted: 2000-06-20
Abstract: A method and device to control start-up of three-phase electrically-powered equipment such as a compressor having a drive output rotor shaft to avoid mechanical damage.  The device is used to detect and measure rotor shaft speed during start-up to produce an output signal and feeding that output signal to an actuating means arranged to abort start-up in the event of failure of the rotor shaft to attain a specified speed, preferably if it has not been reached within a specified time.            Particular application is in star/delta starting of high starting load/torque electrical motors.
Patent CA-2156228-C (CA)
Inventor: EDENS ROY C JR
IPC: D21F7/10
Filed: 1995-08-16
Granted: 2000-07-25
Abstract: A composite pintle for joining the ends of a pin-seamable papermaker's fabric together with a pin seam includes a monofilament yarn having at least one monofilament strand, and a filler yarn, so-called because it fills the void volume surrounding the monofilament yarn in the passage formed by the interdigitated seaming loops and through which the composite pintle is directed to join the fabric into endless form. The filler yarn, including sample fibers, may be a texturized, spun, cabled or plied yarn. The monofilament and filler yarns are-drawn through the seaming passage by a wire leader, which may be attached to them by a connecting sleeve.
Patent CA-2164117-C (CA)
Inventor: COHEN DANIEL E
IPC: G06F17/00
Filed: 1994-06-14
Granted: 2003-12-30
Abstract: A sleep analysis system (11) for analyzing a sleep episode of a subject (10) based on measured values of a plurality of parameters characterizing that subject. Portions of the measured parameter signals (Figs.  3A-3H) are classified as significant events (boxes about signal portions in Figs. 3A-3H), and the significant events are segregated (see Fig.  4) based on parameter signal criteria and time correlation as a basis for the analysis.
Patent CA-2169607-C (CA)
Title: Drive unit with bearing mount
Inventor: FOSTER RAYMOND KEITH
IPC: B65G25/06
Filed: 1996-02-15
Granted: 2001-05-08
Abstract: A drive unit for a reciprocating floor conveyor has a piston component (90) with an outer end longitudinally fixed to a transverse mounting member and a movable cylinder component (92) with a tubular extension (102). A slide bearing (104) supports and guides the tubular extension (102). The drive unit, including the tubular extension, acts as a structural beam. In a first embodiment, each floor member of the conveyor has its own drive unit to provide a powerful drive assembly for heavy loads. In a second embodiment, a plurality of drive units are part of a compact frame (302) having two longitudinal frame members (308) and two transverse mounting members (304, 306).  The drive units are mounted in a window defined by the frame (302).  A plurality of transverse drive beams (330), one for each drive unit, are connected to the drive units and reciprocate between the transverse mounting members (304, 306).  This provides a compact and lightweight drive assembly that may be used for lighter loads.