baber/WOPTO huggingface dataset:
Patent CA-2120204-C (CA)
Title: Electronic seal
Inventor: HAYWARD GILBERT O
IPC: G09F3/03
Filed: 1994-03-29
Granted: 2003-02-18
Abstract: An electronic seal comprises a housing (12), a cord (14) with one end fixed to the housing (12) and a free end which can be passed through a door catch or the like and releasably connected to the housing (12), an electronic circuit within the housing (12) arranged to generate one of a number of unique codes when a switch (70) in the housing (12) is actuated on connection or disconnection of the cord (14) to or from the housing (12) and a display device (18) which can display the unique code.  The cord (14) has a series of regularly spaced enlargements (36), and the interior of the housing (12) has a plurality of teeth (40) arranged so that when a length of cord (14) at its free end is inserted into the housing (12) the enlargements (36) can fit between the teeth (40) to hold the cord (14) against withdrawal from the housing (12).  A slide (16) is movable in the housing (12) between an open position in which the cord (14) can be inserted into and withdrawn from the housing (13) and a locking position in which it retains the enlargements (36) in engagement with the teeth (40). The switch (70) has an actuating member (72) projecting into the space between two of the teeth (40), so that the switch is actuated when the length of cord (14) is moved into or out of engagement with the teeth (40). The fixed end of the cord (14) is connected permanently to the housing (12) by engagement of enlargements (36) on the cord (14) with a further set of teeth in the housing (12). The card (14) is held in engagement with the further teeth by the slide (16), when the slide (16) is in the open or locking position. The slide (16) is movable from a third position in which the fixed end of the cord (14) can be inserted into the housing (12) before the seal is first used, but is then prevented from being moved back to the third position.
Patent CA-2120623-C (CA)
Inventor: MARSHALL IAN WILLIAM
IPC: H04B10/27
Filed: 1993-01-15
Granted: 1999-01-05
Abstract: An optical code recognition unit (OCRU) for recognising a predetermined n-bit optical code has an n-way splitter (7) having an input and n parallel outputs (7a). A plurality of cominbers (8a, 8b, 8c) are associated with the splitter outputs (7a), and a respective gate (9a, 9b, 9c) is controlled by the output of each of the combiners. Each of the splitter outputs (7a) is subject to a different delay of from 0 to (n-1) bit periods, and each combiner (8a, 8b, 8c) receives an input from at least one of the splitter outputs (7a). The OCRU is such that all the gates (9a, 9b, 9c) are turned on if a predetermined optical code is applied to the splitter input.
Patent CA-2128987-C (CA)
Title: Instrument et methode de detection d'analytes
Inventor: CHARLTON STEVEN C
IPC: B01L3/00
Filed: 1994-07-27
Granted: 1998-04-21
Abstract: L'invention porte sur un dispositif et un procédé pour la détection d'un composé à analyser dans un liquide biologique. Le dispositif comprend un couvercle avec une section restreinte pour l'application d'un échantillon, une matrice pour séparer le composé à analyser d'autres substances présentes dans l'échantillon, lesquelles pourraient interférer avec la détection du composé et le système de détection. La section restreinte pour l'application de l'échantillon représente moins de 90 % de la section transversale de la matrice de séparation; la matrice et le système de détection pour le composé à analyser sont comprimés à 14-43 %. La méthode consiste à appliquer un échantillon du liquide sur ce dispositif et à déceler le signal produit par une interaction entre le composé à analyser et le système de détection.
Patent CA-2129550-C (CA)
Title: Shaving aid for a wet razor
Inventor: VREELAND WILLIAM E
IPC: A61Q9/02
Filed: 1992-12-16
Granted: 2003-01-28
Abstract: A shaving aid for use with a wet razor comprising a water insoluble polymeric material including at least two different po-lymers, and a water soluble active ingredient, such as polyethylene oxide. One embodiment of the present invention comprises a flexible, polypropylene razor head, having a shaving aid bonded directly thereto. The shaving aid comprises a water soluble pol-yethylene oxide and water-insoluble polystyrene and polypropylene. Other additives such as pigments and skin-treating additives are also disclosed. Another embodiment of the present invention comprises the shaving aid molded onto a flexible blade support which is preferably formed of polypropylene.
Patent CA-2129661-C (CA)
Title: Biochemical purification of simvastatin
Inventor: CIANCIOSI STEVEN J
IPC: C12R1/88
Filed: 1993-01-29
Granted: 2001-07-31
Abstract: In the synthesis of simvastatin by direct methylation of lovastatin, selective hydrolysis of residual lovastatin, lovastatin acid or a salt thereof by treatment with a bacterium or fungus capable of hydrolyzing the 2-methyl-butyryloxy side chain or a mutant of such microbe or a cell-free extract derived therefrom, or a hydrolase derived therefrom yields 7-[1',2',6',7',8',8a'(R)-hexahydro-2'(S),6'(R)-dimethyl-8'(S)-hydroxy-1'(S)naphthyl]-3(R),5(R)-dihydroxy-heptanoic acid, the triol acid, or triol salt which can be easily separated from simvastatin, either before or after lactonization to the lactone form. This process produces simvastatin of high yield and purity.
Patent CA-2130050-C (CA)
Title: Method and apparatus for constructing a frame buffer with a fast copy means
Inventor: FORREST CRAIG S
IPC: G09G5/393
Filed: 1994-08-12
Granted: 2004-06-08
Abstract: A method and apparatus for quickly copying a first frame region into a second frame region. A video memory array comprising a plurality of video random access memory devices is divided into at least two frame regions. A background image is rendered by a central processing unit into a background frame region within the video memory array. The central processing unit then requests the background image in the background frame region to be copied into a new frame region in the video memory array. A dedicated circuit copies the entire background image in the background frame region into the new frame region. The dedicated circuit operates by using a serial data register within each video random access memory device during the vertical retrace period of a video timing signal. The dedicated circuit performs the background frame copy without requiring any processing resources from the central processing unit,
Patent CA-2130414-C (CA)
Inventor: CRITCHFIELD FRANK E
IPC: C08F291/08
Filed: 1994-08-18
Granted: 2005-12-27
Abstract: The present invention provides polymer polyols and a method for preparing polymer polyols which have (1) exceptional dispersion stability, especially at high styrene contents, and (2) substantially smaller particle sizes than polymer polyols having equivalent viscosity. In a preferred embodiment of the present invention, a first reaction product is obtained by feeding the following materials to a first continuous reactor in the presence of a free radical initiator or catalyst: (a) less than about 50 wt% of a total monomer proportion or monomer mixture, preferably comprising styrene/acrylonitrile at a ratio preferably greater than about 50/50 wt%; (b) at least about 50 wt% of a total base polyol proportion; (c) a majority of a precursor stabilizer; and, (d) a polymer control agent (PCA). The product from this first reaction then is again fed through a continuous reactor, which may be the same as the first reactor, along with additional initiator, at least about 50% of the total monomer proportion, and, optionally, any balance of the total base polyol proportion, precursor stabilizer, and PCA. The product from this second reactor is a high stability, low viscosity polymer polyol.
Patent CA-2133601-C (CA)
Title: Industrial equipment operating status scanner
Inventor: PATEL BALDEV
IPC: G07C3/00
Filed: 1994-10-04
Granted: 1999-02-16
Abstract: An industrial equipment operating status scanner for recording the location and exact time of all switch/contact openings in an industrial machine or process.  The scanner of the present invention also provides an indication as to whether the fault was intermittent or continuous.  Thus, system fault diagnosis is made simple and reliable, resulting in less down time and less loss of revenue to the owner of the industrial machine(s) or process.  The scanner provides an indication firstly of whether or not the machine is operational, secondly, in the event of an intermittent problem, the scanner displays which input device is faulty, and thirdly, in the event that operation of the machine has been stopped, the scanner displays which input device caused it to stop. In addition to the foregoing, the scanner displays also which input is preventing the machine from starting again.  The time and date of the fault is also displayed by the scanner of the present invention.  Thus, the scanner provides monitoring of the status of a machine's circuits and diagnoses any faults.  It also records the machine's running time as well as the down time.
Patent CA-2134056-C (CA)
Inventor: GUERET JEAN-LOUIS H
IPC: A45D34/00
Filed: 1994-10-21
Granted: 1998-07-14
Abstract: L'ensemble de distribution comporte un récipient (8) contenant le produit, une tête de distribution (20) ayant un canal de distribution (21), une membrane souple (30) présentant une partie en forme de dôme (32) qui définit dans la tête de distribution (20) une chambre de compression (50) à volume variable en communication avec le récipient (8); un clapet d'admission (133) est placé dans cette communication et n'autorise que le passage du produit depuis le récipient (1) vers la chambre de compression (50); ladite membrane souple (30) est maintenue sur la tête de distribution (20) par un élément de fixation constitué d'une bague (40) présentant une ouverture (42) d'où émerge le dôme de compression (32) de la membrane souple (30). La bague (40) porte une saillie annulaire (41) entourant ladite ouverture (42), la tête de distribution (20) étant munie d'une gorge annulaire (25) recevant une gorge annulaire (34) que présente la membrane souple (30) et qui entoure le dôme de compression (32) de la membrane souple (30), la saillie annulaire (41) de la bague (40) étant introduite à force dans la gorge annulaire (34) de la membrane souple (30).
Patent CA-2140192-C (CA)
Title: Combined oil return and compressor discharge temperature limitation regarding flooded economizer heat exchanger
Inventor: SJOHOLM LARS I
IPC: F01P3/20
Filed: 1995-01-13
Granted: 2002-12-03
Abstract: A refrigeration system of the type having an economizer cycle is provided with a null cycle, in addition to heating and cooling cycles, without shutting a compres-sor prime mover down, to preserve air flow in a conditioned space. First, second and third controllable valves respec-tively: (1) select main and auxiliary condensers, (2) open and close a liquid line, and (3) open and close a line which provides a warm liquid to an economizer heat exchang-er. The valves are controlled in at least one predeter-mined open/close pattern during a null cycle, and prefera-bly in a plurality of selectable predetermined open/close patterns, to provide a null cycle at any instant which sub-stantially matches the net heat gain or loss taking place in the conditioned space. Thus, the temperature of the served space will be more apt to remain in a null tempera-ture range close to set point, providing smoother and more accurate control over the temperature of the conditioned space for longer shelf life of perishables stored therein.      The system achieves the latter by controlling cooling circulation in the compressor oil cooler.
Patent CA-2142734-C (CA)
Inventor: SOL JEAN-MARC
IPC: C03C17/34
Filed: 1994-06-16
Granted: 2005-08-02
Abstract: The invention relates to a laminated glazing comprising a visible pattern, said glazing being comprised of at least one rigid sheet (9, 8) of glass or plastic material and at least one flexible sheet (11, 12) of plastic material. The pattern according to the invention is formed of at least one layer (13) of organic ink situated on an internal face (14) of one of the sheets forming the laminated glazing, said sheets being assembled by the conjuguated action of the press and the temperature.
Patent CA-2151730-C (CA)
Title: New crystalline form of a vitamin d analogue
Inventor: HANSEN ERIK TORNGAARD
IPC: C07C11/00
Filed: 1994-01-07
Granted: 2005-01-04
Abstract: A novel form of calcipotriol, namely calcipotriol (1.alpha., 3.beta., 5Z 7E  22E 24S)-24-cyclopropyl-9,10-secochola-5,7,10(19), 22-tetraene-1,3,24-triol, monohydrate is provided herein. This calcipotriol is characterized by its storage stability at 40°C after 12 months, its ready wettability and wet ball milling characteristics. This product is perfectly crystalline, stable and well suited for its use in modern therapy.
Patent CA-2153892-C (CA)
Title: Flashlight and recharging system therefor
Inventor: SHARRAH RAYMOND L
IPC: H01M50/548
Filed: 1994-01-12
Granted: 1999-10-26
Abstract: A guide plate (32) on the head (28) of the flashlight (20) provides an alignment feature which aligns a pair of flashlight charging contacts (34, 36) with a pair of terminals (52, 54) in charging unit (40) for releasably holding the flashlight (20) in its charging receptacle (40).  The flashlight (20) is held within the charging receptable (40) in a consistent orientation, so that the flashlight switch may be easily found when the flashlight (20) is grasped.  The charging receptacle (40) grips the head portion (28) of the flashlight (20) with a pair of spring-loaded jaws (46).  A battery assembly (100) is provided which presents both positive and negative terminals (104, 102) at the forward end of the battery unit (100).  Connections (106, 108) are made from the forward end of the battery (100) to an interconnection module (90) within the flashlight head assembly (28).
Patent CA-2154830-C (CA)
Inventor: ROBERTS RODNEY W
IPC: B65D3/26
Filed: 1995-07-27
Granted: 1998-04-21
Abstract: An easy-open container has a spirally-wound paperboard bodywall layer, interior barrier liner layer and outer label layer forming as easy-open seam extending spirally between the ends of the container. Easy-opening of the container is enhanced by the provision of pull tabs formed by superimposed and bonded longitudinal edge portions of the bodywall layer and label layer and an easy-open panel formed by diverging lines of score cuts formed in the bodywall layer to initiate and aid in easy-opening of the container along the spiral seam.
Patent CA-2156223-C (CA)
Title: Mwd surface signal detector having enhanced acoustic detection means
Inventor: CHIN WILSON CHUNG-LING
IPC: E21B47/18
Filed: 1995-08-16
Granted: 2006-08-01
Abstract: The acoustic detector in a mud pulse telemetry system includes a one dimensional waveguide disposed between a pressure transducer and a conduit carrying drilling fluid to a drill string. The waveguide, which may include a flexible hydraulic hose, increases the amplitude of the acoustic mud pulse signal received at the transducer located at the termination end by a factor of two or more. In addition, the waveguide may be substantially filled with a fluid having a viscosity higher than the viscosity of the drilling fluid so as to provide a means to dampen high frequency noise, and thereby improve the signal-to-noise ratio at the pressure transducer.
Patent CA-2156481-C (CA)
Title: 5-ht2 receptor antagonist compositions useful in treating venous conditions
Inventor: AMER M SAMIR
IPC: C07D211/28
Filed: 1993-02-19
Granted: 2004-05-11
Abstract: Treatment of compositions containing 5-HT2 receptor antagonists useful in treating such venous conditions as hemorrhoids, varicose veins, venous insufficiency and wounds. In particular it comprises use of a 5-hydroxytryptamine-2 receptor antagonist (5-HT2) at an effective therapeutic dose to treat a human or animal suffering from such a condition.  The 5-HT2 receptor antagonist can also be administered prophylactically.
Patent CA-2159478-C (CA)
Inventor: MURRAY ROBERT JOHN
IPC: A61P25/00
Filed: 1994-03-29
Granted: 2005-01-25
Abstract: (S)-.alpha.-phenyl-2-pyridineethanamine (S)-malate is useful in the treatment of neurodegenerative disorders. It is an anticonvulsant and a neuroprotective agent.
Patent CA-2160908-C (CA)
Title: Negative birefringent polyimide films
Inventor: HARRIS FRANK W
IPC: C08G69/44
Filed: 1994-04-21
Granted: 2005-02-01
Abstract: A negative birefringent film, useful in liquid crystal displays (2), and a method for controlling the negative birefringence of a polyimide film is disclosed which allows the matching of an application to a targeted amount of birefringence by controlling the degree of in-plane orientation of the polyimide by the selection of functional groups within both the diamine and dianhydride segments of the polyimide which affect the polyimide backbone chain rigidity, linearity, and symmetry. The higher the rigidity, linearity and symmetry of the polyimide backbone, the larger the value of the negative birefringence of the polyimide film.
Patent CA-2167074-C (CA)
Title: Method for metallising non-conductive substrates
Inventor: NEGRERIE MARCEL
IPC: H05K3/10
Filed: 1994-07-11
Granted: 2004-09-14
Abstract: A method comprising the steps of (a) preparing a divided copper oxide dispersion (4) including a solvent and a selected binder, (b) applying said dispersion to a non-conductive substrate (1) to form a film (5), (c) forming a Cu film (9) with a suitable reagent, and (d) electrolytically depositing at least one metal film (11) on said film (9).
Patent CA-2177244-C (CA)
Title: Metal layer pattern forming method
Inventor: YANAGIDA TOSHIHARU
IPC: H01L21/768
Filed: 1996-05-23
Granted: 2007-10-09
Abstract: Disclosed is a metal layer pattern forming method which easily allows lift-off. The thickness of the photoresist layer is not less than double the thickness of the metal layer, and the maximum temperature that the surface of the substrate to be processed attains ranges from 100°C to 150°C. Through appropriate improvement of the quality of the photoresist layer, bonding to the background is prevented and the lift-off is facilitated.
Patent CA-2178199-C (CA)
Title: Method and apparatus for discriminating, authenticating and/or counting documents
Inventor: MENNIE DOUGLAS U
IPC: G07D7/00
Filed: 1995-09-07
Granted: 2001-03-27
Abstract: A currency counting  and discrimina- tion  device (10) for receiving a stack of cur- rency bills, rapidly counting and discrimi- nating the bills in the stack (20), and then re-stacking the bills.  The device comprises an input receptacle (209) for receiving a stack of currency bills to be discriminated a discriminating unit (30) for discriminat- ing the denomination of the currency bills and one or more output receptacles (217) for receiving the currency bills after be- ing discriminated by the discriminating unit (30). The device further comprises a trans- port mechanism (16) for transporting  the currency bills, one at a time, from the in- put receptacle (209) past a sensor of the dis- criminating unit and to the one or more out- put receptacles (217).  One or more  coun- ters keep track of the value of bills that are discriminated.
Patent CA-2179103-C (CA)
Title: Multi-layer golf ball
Inventor: SULLIVAN MICHAEL J
IPC: A63B45/00
Filed: 1996-06-13
Granted: 2006-08-08
Abstract: Disclosed herein is a multi-layer golf ball having a central core, an inner cover layer containing a non-ionomeric polyolefin material, preferably a plastomer, and an outer cover layer comprising a thermoplastic material. The combined thickness of the inner and outer cover layer preferably is at least about 0.10 inches. The golf ball has a coefficient of restitution of at least about 0.780. A method for forming the golf ball described above also is disclosed.
Patent CA-2180261-C (CA)
Title: Sequence peptidique formant une chaine de mucine et technique de modification de la proteine a lier a la chaine de mucine
Inventor: YOSHIDA ARUTO
IPC: C07K14/47
Filed: 1995-11-01
Granted: 2003-03-18
Abstract: Séquence d'acides aminés dans laquelle une chaîne de mucine est spécifiquement introduite dans une chaîne protéique ou peptidique, et technique d'introduction d'une chaîne de mucine dans une protéine ou un peptide à l'aide de ladite séquence d'acides aminés. Dans une protéine ou un peptide contenant une séquence d'acides aminés représentée par la formule générale (I): X(-1)-X(0)-X(1)-X(2)-X(3), la fraction GalNAc de UDP-CalNAc (UDP représentant uridine 5'-diphosphate, et GalNAc représentant N-acétylgalactosamine) est introduite dans l'acide aminé X(0) en présence d'une UDP-GalNAc: polypeptide .alpha.-1,0-GalNAc transférase (I), X(-1) et X(2) représentent chacun indépendamment un acide aminé arbitraire; X(0) représente T ou S; et X(1) et X(3) représentent chacun indépendamment un acide aminé arbitraire, à condition qu'au moins l'un d'eux représente P.
Patent CA-2183183-C (CA)
Inventor: WEI YAO-MING
IPC: B65B43/28
Filed: 1996-08-13
Granted: 1999-05-25
Abstract: A device is provided for opening at least one package bag which has a first sheet having a first top edge and a second sheet having a second top edge detachably engaged with each other. The device includes a horizontal L-shaped base member.  A vertical U-shaped baffle is arranged and has one distal end fixedly attached to a second plate of the base member. At least one horizontal post has one distal end fixedly attached to the baffle, and the top edge of the first sheet of the package bag is mounted around the horizontal post. A pushing member has a vertical section slidably mounted around the horizontal post for urging the first top edge of the first sheet of the package bag to abut on the baffle. A pressing mechanism is mounted on the first plate of the base member and includes a pressing member pivotally mounted thereon. A pressing plate is formed on one end portion of the pressing member and is rested on the second top edge of the second sheet of the package bag.
Patent CA-2186633-C (CA)
Inventor: GREWELL DAVID A
IPC: B23K20/00
Filed: 1996-09-26
Granted: 2000-01-04
Abstract: An expert system for a welding machine has an installed knowledge base concerning weld problems and preferred solutions. Trial welds are made from which input data concerning weld quality is obtained. The expert system applies predetermined rules and historic confidence levels to determine changes in weld parameters to attempt to correct any weld defects.
Patent CA-2188240-C (CA)
Title: Method and devices for endoscopic vessel harvesting
Inventor: KNIGHT GARY
IPC: A61B17/32
Filed: 1996-10-18
Granted: 2006-06-27
Abstract: A method for removing a vessel from a patient's body comprises the steps of identifying the vessel to be removing and providing an incision in the patient's body near the identified vessel. An optical dissector is inserted through the incision and tissue is optically dissected away from the surface of the vessel with the optical dissector. The optical dissector is then withdrawn from the body through the incision. An optical retractor is inserted into the body through the incision and is used to retract the dissected tissue away from the surface of the vessel thereby providing space between the dissected vessel and the retracted tissue. The vessel and its side branches are then dissected, ligated and transected and the vessel is then removed from the body through the incision.