baber/WOPTO huggingface dataset:
Patent CA-2019805-C (CA)
Title: Multi-layer shingle
Inventor: QUARANTA JOSEPH
IPC: E04D1/12
Filed: 1990-06-26
Granted: 1999-05-25
Abstract: A multi-layer shingle is provided, comprising three shingle layers; specifically, a base layer, a secondary layer and a top layer.  The base layer and the secondary layer each have butt portions and tab portions.  The secondary layer has tab portions that are preferably somewhat shorter than the tab portions of the base layer, showing portions of the tab portions of the base layer beneath the tab portions of the secondary layer.  The top, or third layer is comprised of individual strips that are preferably narrower than the tab portions of the secondary layer, and which preferably extend up into the butt portion of the secondary layer, in overlying relationship therewith.  The base layer and secondary layer are secured together by preferably horizontal adhesive stripes.  Adhesive also secures the top or third layer strips to the secondary layer, preferably by means of vertical adhesive stripes.  Different granule applications are provided for desired aesthetic effects.  optionally, a shadow line may be provided on the upper surface of the secondary layer at the juncture of the butt and tab portions thereof.  Different tab portions of the secondary layer may have different vertical heights, for random effect.  Each of the base and secondary layers is approximately twice as wide as high, such that two such layers may be cut from a substantially square piece of shingle material.  The final shingle may be palletized at two generally coplanar shingles per layer, with alternate layers disposed at 90 degrees relative to each other.
Patent CA-2028777-C (CA)
Title: Spiropyran compounds
Inventor: MIYASHITA AKIRA
IPC: C07D517/10
Filed: 1990-02-27
Granted: 1999-08-17
Abstract: The present invention provides a spiropyran compound represented by the formula   wherein R1 is alkyl having 1 to 20 carton  atoms or aralkyl, R2, R3, R4 and R5 are the same or different and are each a hydrogen atom, alkyl having 1 to 6 carbon atoms, aryl or aralkyl, alkoxyl having 1 to 5 carbon atoms, halogen atom, cyano, trichloromethyl, trifluoromethyl or nitro, R6 and R7 are the same or different and are each a hydrogen atom, alkyl having 1 to 6 carbon atoms, aryl or aralkyl, halogen atom, cyano or nitro, X is an oxygen atom or sulfur atom, Y is   Se or (CH3)2C<, Z is          , and X is a sulfur atom when Y is (CH3)2C<, The spiropyran compound of the present invention itself is usable as a material such as recording material, photosensitive material, optical filter or decorative material. The present compound can further be homopolymerized or copolymerized with other polymerizable compound into a high polymer spiropyran compound for application to optical devices or dynamic devices.
Patent CA-2030251-C (CA)
Title: Multiple tier junction box
Inventor: MICHIE ALEXANDER
IPC: H02G3/08
Filed: 1990-11-19
Granted: 1996-01-02
Abstract: There is disclosed an electrical junction box having a plurality of tiers each of which increases in cross-sectional area from the top of the box to the bottom thereof.  The tiers, being annular are adapted to receive conduits from a plurality of angles or levels.  A releasably engageable lid covers the box which, may be mounted to or within a substrate by a mounting member integral with the junction box.
Patent CA-2031092-C (CA)
Title: Seat track assembly with mechanical memory
Inventor: COLOZZA LUCIANO
IPC: B60N2/12
Filed: 1990-11-29
Granted: 1994-09-20
Abstract: An easy entry seat track assembly is provided.   The assembly includes a mechanical memory for the comfort position when the seat is moved to the easy entry position and returned.          A latching mechanism is provided which engages a latching plate at a multiplicity of positions to establish a comfort setting for the occupant. A handle is provided to establish the comfort setting.  The  handles  has  a  detent  which  is  automatically releasably engageable with the latch mechanism when the seat moves to the easy entry position and returns to the comfort position.
Patent CA-2035656-C (CA)
Title: Sal olein, a process for its preparation and cosmetic compositions containing it
Inventor: MOTTIER LINE
IPC: A61Q19/00
Filed: 1991-02-04
Granted: 2001-04-03
Abstract: To avoid problems affecting the physicochemical stability of cosmetic products containing sal fat, the sal fat is subjected to fractional crystallization with n-hexane to obtain an olefin in the form of a clear liquid at ambient temperature.      The olefin obtained is suitable for the preparation of cosmetic compositions in the form of aqueous or anhydrous emulsions which retain a smooth and lustrous appearance while showing the qualities of sal fat.
Patent CA-2039279-C (CA)
Title: Pipe inspection system
Inventor: DAY ROBERT CHARLES LEWIS
IPC: G01M99/00
Filed: 1991-03-27
Granted: 2002-06-04
Abstract: A method of inspecting a water pipeline while the pipeline is full of water comprises providing a liquid-tight casing housing a video camera and lights, coupled to a cable housing both optical and electrical conductors. A drogue is attached to the casing and the camera pod and drogue are launched through the sidewall of the pipeline via a launch chamber. The camera pod and cable are neutrally buoyant and can be deployed several kilometres along the pipeline for inspecting the pipeline and recovered again into the launch chamber.      The advantage of this system over conventional systems is that much longer lengths of pipeline can be inspected from a single location.
Patent CA-2053355-C (CA)
Title: Zero clearance anti-extrusion rings for containment of ptfe packing
Inventor: HUTCHENS WILBUR DEAN
IPC: F16J15/20
Filed: 1991-10-11
Granted: 2003-05-06
Abstract: A packing containment assembly for sealing an operating member such as a shaft or stem in a fluid control valve, particularly where PTFE packing is used. A pair of zero clearance anti-extrusion rings of PEEK material are mounted in the shaft with the PTFE packing therebetween. Each ring has an inner diameter slightly less than the shaft outer diameter to form an interference fit. The rings are split with a scarf cut to provide an overlapping joint and enable mounting of the rings on the operating member. A male adapter PEEK ring matches a V-type female packing ring which significantly reduces the amount of PTFE packing needed for a reliable seal. A step cut PEEK zero clearance anti-extrusion ring could be used as well as a fractured carbon ring.
Patent CA-2057313-C (CA)
Inventor: SCHELL JEFF
IPC: C12N15/82
Filed: 1991-12-09
Granted: 2003-02-04
Abstract: Described are a method of producing pathogen-resistant plants in which a protein-synthesis inhibitor gene or a fusion product of the protein-synthesis inhibitor gene or of the protein-synthesis inhibitor protein with ligands permitting specific attachment to cells is introduced into the genotype of plants under the control of an active promotor, and the use of the protein-synthesis inhibitor protein obtained by introducing the protein-synthesis inhibitor gene into the bacterial overproducers for making pharmaceutical preparations.
Patent CA-2057656-C (CA)
Title: Method for manufacturing a peat moss board having a predetermined density and the resulting product thereof
Inventor: ROY MARTIN
IPC: D21H27/32
Filed: 1991-12-13
Granted: 1996-07-30
Abstract: A method for manufacturing a peat moss board suitable for use as an absorbent core in structures for absorbing body exudate.  The method is characterized by conditioning a  wet  laid  board  to  a  specific  water  content  and calendering the  conditioned board  at  a  predetermined pressure.  The water content and the calendering pressure determine the density of the peat moss board in final form.   The invention also extends to a peat moss board manufactured by the novel method.
Patent CA-2065501-C (CA)
Title: Preparation process of ginkgolide b from ginkgolide c
Inventor: TENG BENG-POON
IPC: A61K36/00
Filed: 1992-04-07
Granted: 1997-04-29
Abstract: The invention relates to a process for the preparation of ginkgolide B by conversion of ginkgolide C into ginkgolide B, and to the ginkgolide B thus obtained, which is a potent inhibitor of PAF-acether. The process of the present invention comprises the steps of protecting the 10-hydroxy group of ginkgolide C by conversion to an alkyl ester, the reaction being effected in dimethylformamide at a temperature of from 15 to 50°C for from 4 to 10 hours; activating the 7-hydroxy group of the resultant 10-protected ginkgolide C by conversion to a (R)thiocarbonyl ester, the activation being effected in basic conditions at a temperature of from 0 to 40°C for from 1 to 24 hours; deoxygenating the 7-activated group in the resultant 10-protected 7-activated ginkgolide  C  by treating  it  with  tributyltin  hybride  or  tris-(trimethylsilyl)silane,  in an aprotic solvent,  in the presence of a free-radical generator, the reaction being effected at a temperature of from 70 to 110°C for from 15 minutes to 3 hours under inert atmosphere, and cleaving the protecting group from the 10-hydroxy group of the resultant 10-protected ginkgolide B.
Patent CA-2074899-C (CA)
Title: Toughened, fiber-reinforced thermosetting resin matrix prepregs and composites made therefrom
Inventor: RECKER HANS GERT
IPC: C08L63/00
Filed: 1992-07-29
Granted: 2001-01-16
Abstract: The subject invention pertains to toughened thermosetting resin systems useful as structural adhesives and as matrix resins for thermosetting fiber-reinforced prepregs. These toughened resins employ a most minor amount of functionalized elastomeric particles having a T g of 10°C or below dispersed in a thermosetting base resin system.
Patent CA-2078313-C (CA)
Inventor: KAUFMAN MARK A
IPC: G06F11/14
Filed: 1992-09-15
Granted: 2001-05-08
Abstract: A digital data processing apparatus includes a processing element that executes a process for generating request for access to mapped data in a memory element. The apparatus also includes a fork/checkpoint-signalling element that generates "new-process signals" which delineate new time intervals. The apparatus responds to data requests generated by the process before the first new-process signal by accessing a requested datum as stored in a first set in memory. An address space manager responds to certain requests, e.g., for write access, in subsequent intervals for copying the requested datum from the most recent set in which it is stored to the current interval and, thereafter, accessing that copy. The manager responds to other requests, e.g., those fore read-type access, by accessing the requested datum in the most recent set in which it is stored. A fork element can create a second process that initially duplicates a first one and can initiate generation of a new-process signal in connection with creation of the second process.
Patent CA-2080285-C (CA)
Title: Improved recovery of platinum group metals and gold by synergistic reaction between allylalkylthionocarbamates and dithiophosphates
Inventor: ROBERTS DIANA E
IPC: B03D1/014
Filed: 1992-10-09
Granted: 2004-03-30
Abstract: Collector compositions for use in froth flotation processes for the beneficiation of gold, silver and platinum group values from base metal ores are disclosed. The collector compositions comprise at least one dithiophosphate compound of the formula: (see figure I) and at least one allylalkylthionocarbamate of the formula: (see figure II) wherein each R is, individually, a C2-C8 alkyl radical.      The use of the collector combination provides excellent selective recovery of the gold, silver and platinum group metal values into froth flotation processes conducted under neutral to alkaline conditions.
Patent CA-2080585-C (CA)
Title: Electrical connector with sealing feed-through
Inventor: FORTIN HUGUES
IPC: H01R13/52
Filed: 1992-02-13
Granted: 2001-12-18
Abstract: An electrical connector for use in automobiles comprises an insulating body (12) with passages to house contacts, each fitted with a connecting wire (18). It also comprises a rear feed-through (36) made from an elastomer with at least two rows of individual passages for the wires, and held by a perforated plate which can be removably secured to the body. Each passage in the feed-through incorporates at least one sealing lip shaped to close the corresponding individual passage when unused with no wire fitted, the feed-through being held in place by the perforated plate.
Patent CA-2080714-C (CA)
Title: Modular shelving system with a quick-change shelf feature
Inventor: CARLSON BRADLEY JON
IPC: A47B57/40
Filed: 1992-10-16
Granted: 2001-07-03
Abstract: A shelving system includes a horizontal polygonal base shelf assembly and a substantially identical horizontal top shelf assembly, a plurality of vertical support posts, and one or more intermediate shelf assemblies positioned between the top shelf assembly and the bottom shelf assembly. Each intermediate shelf assembly is supported by hanger brackets which are removably secured to the support posts. Accordingly, each intermediate shelf assembly can be quickly installed and removed without the necessity of disassembling the other components of the shelving system. Optionally, an overlay may be placed on one or more of the shelf assemblies. The overlay is removably secured at its perimeter to the shelf assemblies by means of a snap-on trim panel. The overlay and trim panel may have different selected textures, patterns, and colors to provide an inexpensive, easily changeable informational and decorative display.
Patent CA-2084467-C (CA)
Title: Flexible seal removal resistance tester
Inventor: COX GARY BRUCE
IPC: G01L5/00
Filed: 1992-12-03
Granted: 2003-02-04
Abstract: A method and apparatus for testing the force required to remove flexible seals from objects such as product cups is disclosed. The object, e.g., cup is held so that the seal defines a substantially horizontal plane and a portion of the flexible seal is attached to a force measuring gripper. The object, e.g., cup is then moved away from the gripper at an angle .theta./2 with respect to horizontal. Forces are then measured by the gripper at an angle .theta. from horizontal. In a particular example, .theta. equals 45° which simulates human removal of the flexible seal. The measured forces are digitized and stored for report generation.
Patent CA-2091514-C (CA)
Title: Process for forming siloxane bonds
Inventor: BERGSTROM DEBORA FRANCES
IPC: C08G77/06
Filed: 1993-03-11
Granted: 2002-02-26
Abstract: The present invention relates to a novel method of preparing siloxane bonds. The method comprises reacting less than or equal to 1 equivalent of a carboxylic acid with 2 equivalents of alkoxy groups on an alkoxysilane in the presence of a strong acid.
Patent CA-2091568-C (CA)
Title: Catheter attachment device
Inventor: YOUNG THOMAS M
IPC: A61M39/12
Filed: 1991-09-13
Granted: 1995-02-14
Abstract: A connector (10) for detachably sec-uring an end of a tube, such as a catheter (20), to a fluid port (37) of a fluid transfer assembly, such as an implantable device (30), the connector having a body part (50) which defines a coupler for coupling to a coupler receiver (43) of the transfer assem-bly. The connector includes a sleeve (40) which fits within the body part and defines an aperture (46) for compressively receiving an end of the tube which has been fitted over a fluid port (37) of the transfer assem-bly. The body part is rotatable about the sleeve to facilitate coupling of the coupler and coupler receiver. In one embodiment, the connector further includes bayonet pins (54a, 54b) for twist locking the coupler in the coupling receiver. A tie down (62) may be provided to prohibit the coupler from be-ing inadvertently detached from the coup-ling receiver. A tactile indicator (55, 155) may be included to indicate correct coupling of the coupler and the coupler receiver. The sleeve generates a compressive force to secure the tube to the fluid port. A compression insert (80) may be inserted between the sleeve and tube to provide a higher degree of compression of the tube upon the fluid port. In one embodiment, the tube is a cathe-ter (120) coupled to a patient and the fluid transfer assembly (130) is an implantable device, for subcutaneous delivery of fluid to a patient in which the catheter and device have been implanted.
Patent CA-2093345-C (CA)
Title: Automatic air cooking system for vending machines
Inventor: COVINGTON WAYNE L
IPC: A23L19/12
Filed: 1991-10-09
Granted: 2001-08-28
Abstract: A closed-loop air cooking system for use in a vending machine that vends french fried potatoes and the like, including: a) a closed-loop air duct assembly (11); b) a coo-king basket (13) mounted for rotation within the air duct assembly: c) a fan (15) for forc-ing air through the air duct assembly; d) a separator (17) for removing entrained parti-culates from the air stream within the air duct assembly; and e) a heater (19) for heat-ing air that circulates within the air duct as-sembly. In addition, the cooking system in-cludes a separator for removing oil and other particulates from the closed-loop air stream.
Patent CA-2093402-C (CA)
Inventor: BARTHOLOMEW DONALD DEKLE
IPC: F16B21/18
Filed: 1993-04-05
Granted: 1998-01-06
Abstract: A means for configuring  a  spring  arm  (12) retaining ring (10) which is contained by a groove (90) that is put into a bore (88), such that the concentricity of the ring to a male part (40) which is installed into the bore is limited to an extent that allows the ring to enter a  tapered  bore  (86)  leading  to  the  ring  bore,  and compresses the outside diameter of the ring is shown.  The male part that is installed into the bore includes a configuration which cooperates with the retaining ring, and may or may not be a portion of the part, or assembled to the part.  The combination of the ring disclosed and the cooperating portion allows a retaining ring to be installed by pushing the male part (that is to be retained in the bore) into the bore.
Patent CA-2098331-C (CA)
Title: Method for the isolation of degradative microbial consortia and apparatus therefore
Inventor: LAWRENCE JOHN R
IPC: C12M1/18
Filed: 1993-06-14
Granted: 2001-08-21
Abstract: There is disclosed a method for isolating microorganisms which are capable of metabolizing a selected contaminant at a variety of concentrations. An apparatus in the form of an extended concentration gradient gel cell is disclosed for the purpose of sustaining the contaminant in various concentration levels on the gel. The microorganisms self colonize on the gel cell at a concentration suitable for metabolic activity of the microorganisms. This permits easy identification and isolation of microorganisms capable of metabolizing various concentrations of a contaminant.
Patent CA-2101088-C (CA)
Inventor: CORREIA YVES
IPC: C01B7/01
Filed: 1993-07-22
Granted: 1996-02-13
Abstract: L'invention concerne dans un procédé de synthèse d'acides chloracétiques par chloration d'acide acétique en présence d'anhydride acétique ou de chlorure d'acétyle et qui sous produit un courant gazeux d'acide chlorhydrique brut, le perfectionnement comprenant : a/ la mise en contact de ce courant gazeux avec du charbon actif jusqu'à disparition du chlore qui y était contenu, b/ la séparation, dans le courant obtenu en a, à l'aide d'au moins une compression et un refroidissement (i) de l'acide chlorhydrique pur et (ii) des autres produits, c/ le recyclage des autres produits (ii) dans le réacteur de synthèse d'acides chloracétiques.
Patent CA-2103193-C (CA)
Title: Procede et dispositif de controle ultrasonore industriel de pieces par retournement temporel
Inventor: BEFFY LIONEL
IPC: G01N29/04
Filed: 1993-11-16
Granted: 2002-02-19
Abstract: La présente invention concerne un procédé de contrôle ultrasonore industriel de pièces du genre dit de retournement temporel consistant, après émission d'un faisceau ultrasonore non focalisé et réception de l'écho renvoyé, à réémettre ce signal d'écho après retournement de sa répartition dans le temps.  Conformément à l'invention la pièce à examiner est animée d'un mouvement de rotation continu alors que le transducteur ultrasonore est animé d'un mouvement linéaire pas à pas dont chaque déplacement correspond â un nombre. entier de révolutions de la pièce.
Patent CA-2104724-C (CA)
Inventor: FLATHAU ROBERT J
IPC: E04G5/06
Filed: 1993-08-24
Granted: 1997-06-10
Abstract: In order to make it possible to align a concrete form while at the same time providing a safe working walkway therealong,  a  scaffold  bracket  comprises  a  generally triangular shaped brace having an attachment leg, a plank supporting leg and a brace leg.  The attachment leg is adapted to be secured to an outer surface of the concrete form, the plank supporting leg extends generally transversely of the attachment leg, and the brace leg extends from the attachment leg to the plank supporting leg at an acute angle to both the attachment leg and the plank supporting leg.  A first stop is provided on the plank supporting leg at a preselected distance outwardly of the attachment leg to define a waler bracket for accepting a plank of predetermined width for aligning the concrete form.   A second stop is provided on the plank supporting leg at a preselected distance outwardly of the first stop to define an outer limit for accepting one or more planks of predetermined width for creating a working walkway. The brace is configured in such manner that the attachment leg can cooperate with one or more spaced fasteners on the outer surface of the concrete form such that the attachment leg is secured  to  the  spaced  fasteners  with  the  planks  of predetermined  width  suitably  positioned  on  the  plank supporting leg.   In a preferred embodiment of the scaffold bracket of the present invention, the second stop takes the form of a guardrail pocket having an opening adapted to accept an upright for forming a guardrail with other such uprights at the outer limit of the working walkway.
Patent CA-2110845-C (CA)
Title: Control circuit push-control and display apparatus for multi-purpose power leisure car
Inventor: LIN YU-SHU
IPC: B60L11/18
Filed: 1993-12-07
Granted: 2000-02-15
Abstract: This invention relates to a push-control circuit control and display apparatus for multi-purpose power leisure car, and particularly to a display panel including automatic display control circuit and turning-left, turning-right display and buttons; 6-block shift display and buttons; voltage automatic charge warning and LED warning signal buzzer indication and buttons; headlamp button and LED; solenoid brake release LED display and button; horn button, etc. such multiple functions for leisure power car. It comprises a leisure car main body, an automatic display control circuit display panel mounted in the front part of the main body; the automatic control circuit display panel having turning-left, turning-right signal LED, obstacle LED, shift LED, voltage automatic charge warning LED and release buzzer LED, headlamp LED, solenoid brake release LED; the buttons which are made of light-transmission film, if intended for automatic display of the aforesaid functions during running, the user only needs to press down the markings on the panel as desired and therefore easy operation and leisure function can be achieved hereof.
Patent CA-2111314-C (CA)
Inventor: HOWELL BRADFORD S
IPC: A01N55/02
Filed: 1993-12-13
Granted: 2004-08-17
Abstract: The combination of surfactant carrier mixture with an aqueous copper complex in emulsified form provides rapid algaecidal and herbicidal action.    The composition is of particular use in running water systems.
Patent CA-2114377-C (CA)
Inventor: PRESS ROMAN JOSEPH
IPC: F02M51/06
Filed: 1994-01-27
Granted: 1998-12-15
Abstract: A fuel injector has a flat armature/valve controlling fuel flow through an opening in a valve seat.  The valve seat comprises a raised annular land with a cylindrical opening extending therethrough to define a substantially cylindrical outlet for the passage of fuel having a substantial flow area.