baber/WOPTO huggingface dataset:
Patent CA-2011673-C (CA)
Title: Fine jewelry rope chain
Inventor: ROZENWASSER DAVID
IPC: A44C11/00
Filed: 1990-03-07
Granted: 1993-03-23
Abstract: A B S T R A C T     A jewelry rope chain having tightly interfitting links made of wire of a given cross-section, each link having a small gap  formed  therein slightly  larger  than  the cross-section of said wire, so as to enable one of said links to pass through the gap of a second such link, said links being intertwined to fit tightly one against the other and form in outward appearance a double helix, the  improvement  comprising  each link  being  of a non-circular elongated shape and including a major axis defining longer outer and inner diameters and a minor axis defining shorter outer and inner diameters,  said gap lying in a link section parallel to the major axis, said shorter  inner diameter being  just over X times greater than the cross-section of the link wire, where X is  a  number  equal  to  or  greater  than  2, said interfitting  links  being  positioned  in  the  chain  so that said longer outer diameter defines a width of the chain and a method for making same.
Patent CA-2015286-C (CA)
Title: Two-piece folder
Inventor: PACIONE PETER L
IPC: B42F7/02
Filed: 1990-04-24
Granted: 2000-07-25
Abstract: The present invention provides a two-piece kit for a portfolio folder which is readily adapted to be purchased by a small photocopy ar printing centre. The front panel of the kit is sized to become comparable to that of normal paper sizes and readily adapted to have printed material applied to at least one side thereof by use of standard sized photographic or of offset printing equipment. After application of indicia or printed matter to the front panel, the components of the kit are then assembled by securing the front panel to the rear panel. The kit and method in accordance with the present invention permit small quantities of folders to be provided with customized printing on the front panel at relatively low cost.
Patent CA-2016060-C (CA)
Title: Piano hammer and method for making same
Inventor: LOMBINO JAMES M
IPC: G10C3/18
Filed: 1990-05-04
Granted: 1994-05-24
Abstract: PIANO FORTE HAMMER AND METHOD FOR MAKING SAME    Abstract of the Disclosure A piano forte hammer has an elongated head with a nose defining side surfaces, and a felt body disposed to extend about the nose.  The felt body has a nose region for contact upon a piano string and first and second tall regions having surfaces affixed in contact upon the head side surfaces.  The felt body, in the tall regions only, contains a predetermined measured amount of acrylic copolymer, the felt body nose region being essentially free of the acrylic copolymer.  The hammer may be formed by a process including the steps of; providing a first volume of aqueous solution containing the predetermined measured amount of acrylic copolymer in a slot; disposing a first tall region of the felt body, prior to assembly about the nose, in solution in the slot; allowing the felt body to draw essentially all of the solution from the slot, into the first tall region only, by natural wicking action; and repeating the process for the second tall region of the felt body, the nose region being left essentially free of acrylic copolymer.
Patent CA-2019182-C (CA)
Title: Barrier of condenser type for field control in transformer bushing terminals
Inventor: HOLMSTROEM LARS
IPC: H01F27/04
Filed: 1990-06-18
Granted: 1994-05-03
Abstract: ABSTRACT            The invention relates to a condenser type barrier for field control in transformer bushings and their connection to the conductor of a transformer winding for transformers used in HVDC convertor plants.  The condenser barrier is arranged as a solid of revolution with concentrically laid condenser layers.  It is formed from both ends with inwardly-directed, straight frustums of cones with equally large smallest bases, between which the condenser barrier is formed as a concentric inner, straight circular cylinder.
Patent CA-2023501-C (CA)
Title: Modified plastic bag opening apparatus
Inventor: CONNING WILLIAM D
IPC: B65B69/00
Filed: 1990-08-17
Granted: 1995-05-02
Abstract: An apparatus for opening plastic bags to remove their contents has a pair of wheels mounted in approximate coplanar relationship such that there is a point of approximate cotangency. The two wheels rotate in opposite directions, and a series of tines are mounted in spaced relation on the periphery of each wheel to extend normal to the direction of travel of the loop. Once a filled plastic bag is placed onto the apparatus at the point of approximate cotangency of the wheels, a biased flexing structure presses the bag against the tines. A hole is created in that surface riding on the tines as the tines move away from the point of approximate cotangency.  To remove any articles remaining in an opened bag, a pair of oppositely-rotating rollers are positioned so as to draw the bag between them.  An oscillating member forward of the rollers acts to prevent any articles remaining in an opened bag from entering between the rollers.  A vacuum collection means draws off the emptied bags.  The apparatus has particular application to the opening of bags containing recyclable articles.
Patent CA-2025559-C (CA)
Title: Liquid jet recording head and liquid jet recording apparatus having same
Inventor: SAITO ASAO
IPC: B41J2/14
Filed: 1990-09-17
Granted: 1998-09-15
Abstract: A liquid jet recording head includes a heat generating element; a heat acting zone in which heat generated by the heat generating device acts on liquid; a liquid feeding passage adjacent to the heat acting zone having a liquid supply opening for supplying liquid to the heat acting zone; a liquid ejection passage adjacent the heat acting zone and having an orifice through which the liquid is ejected; wherein a center line passing through the center of the liquid supply opening along a direction of the liquid supply from the liquid supply passage to the heat acting zone is directly opposite a wall defining the liquid ejection passage.
Patent CA-2026279-C (CA)
Inventor: DAY JOHN J
IPC: G21H1/00
Filed: 1990-09-26
Granted: 1993-11-30
Abstract: ABSTRACT OF THE DISCLOSURE     A power cell for generating useful electrical power from high frequency electromagnetic radiation comprising a spiral-wound multi-layer film forming a cylindrical body with a central opening (10) for receiving the radiation source (11).  The film has in succession a conductive grounded emitter layer (E), a first intermediate layer (12) of dielectric material, A second intermediate layer (C') of a material having a substantial Compton effect, a conduc-tive collector layer (C), a third intermediate layer (13) of the same dielectric material, a conductive retarding layer (R), and an insulating layer (14).  The collector and emitter layers are to be connected to the opposite termi-nals of a load.  A bleeder regulator (15) is connected between the retarding and collector layers to pass excess charge on the retarding layer to the collector layer.
Patent CA-2031294-C (CA)
Inventor: MASSOUDA DEBORA F
IPC: B32B27/32
Filed: 1990-11-30
Granted: 1994-10-04
Abstract: A heat-sealable paperboard laminate for liquid packaging which does not transmit nor absorb oxygen or flavor ant odor ingredients comprises paperboard sandwiched between two layers of heat-sealable low density polyethylene polymer (LDPE) and including a three-component product-contact barrier layer coextruded onto the inner layer of LDPE. The barrier layer comprises ethylene vinyl alcohol copolymer (EVOH)/a tie layer (Plexar 177 or 175)/ low density polyethylene polymer (LDPE).
Patent CA-2031368-C (CA)
Title: Composition comprising non-steroidal non-inflammatory agent and effectively non-antibacterial tetracycline
Inventor: GOLUB LORNE M
IPC: A61K31/215
Filed: 1990-12-03
Granted: 2002-01-29
Abstract: A method for treating mammals suffering from rheumatoid arthritis and other tissue-destructive (chronic inflammatory or other) conditions associated with excess metalloproteinase activity comprising administering to the mammal an amount of a tetracycline that is effectively anti-metalloproteinase, but that is not effectively antimicrobial, and an amount of non-steroidal anti-inflammatory agent which, when combined with the effectively anti-metalloproteinase amount of tetracycline, results in a significant reduction of tissue destruction and/or bone loss.
Patent CA-2032281-C (CA)
Title: Child's cart
Inventor: CARPENTER BRUCE R
IPC: B62B7/04
Filed: 1990-12-14
Granted: 2000-10-03
Abstract: A cart for infants includes a front wheel bogie steerable by means of a handle for the cart. The cart is provided with rear wheels and runners.  The wheels are removable without the use of tools and without removal of the handle, whereby the cart may be used as a sled.
Patent CA-2039050-C (CA)
Title: Curing resin composition and its cured product
Inventor: TAKARADA MITSUHIRO
IPC: C08G59/00
Filed: 1991-03-26
Granted: 1999-05-25
Abstract: This invention discloses a curing resin composition comprising (a) an organic resin containing no less than 2 alkenyl groups per molecule,  and having a number average molecular weight of 500-100,000,  (b) an organohydrogen-polysiloxana containing no less than 2 Si-H bonds per molecule, and (c) a platinum catalyst.  It is desired that the organic resin of component (a) is at least one type chosen from acrylic, polyester and epoxy. The preferable amount of component (b) is such that there are 0.8-4 hydrogen atoms bonded to silicon atoms per alkenyl group of component (a).
Patent CA-2046533-C (CA)
Title: Treatment of endometriosis
Inventor: IGARASHI MASAO
IPC: A61P15/00
Filed: 1991-07-09
Granted: 1996-09-24
Abstract: Disclosed  is  a  use  of  danazol  for  vaginal administration in a form of powder, tablet, suppository, capsule  or  liquid,  or  for  parenteral  and  non-vaginal administration in a form of a solution, the content or concentration of danazol is specified.
Patent CA-2050931-C (CA)
Title: Preparation of a flexographic relief printing plate
Inventor: TELSER THOMAS
IPC: G03F7/30
Filed: 1990-03-14
Granted: 2000-05-09
Abstract: A new liquid cleaner composition is provided for the mild and gentle removal of polymeric materials from a surface without leaving any residues. The new cleaner composition is an emulsion of the water-in-oil type comprising an aqueous phase finely dispersed in a continuous phase selected from the group consisting of nonflammable, fire-retardant, high-boiling, and fire-retardant and high-boiling organic phases, the volume ratio of the finely dispersed aqueous phase to the continuous organic phase being in the range of form 90:10 to 10:90. The water-in-oil emulsion can additionally contain alcohols, surface-active compounds and further useful additives. It is preferably used in the process for preparing photopolymerized flexographic relief printing plates as the developer for washing out the non-irradiated and thus non-photopolymerized areas of the imagewise irradiated relief-forming recording layers of the flexographic relief printing plates.
Patent CA-2054877-C (CA)
Title: Low mass valve lifters
Inventor: KRIEG JOHN J
IPC: F01L13/00
Filed: 1991-11-04
Granted: 1994-06-14
Abstract: LOW MASS VALVE LIFTERS Abstract Low mass hydraulic and mechanical valve lifters are shown and described.  The lifters are of oblong configuration for reduced mass, with straight or narrowed sides connecting longitudinally spaced ends having depending semi-cylindrical end walls that are received in similarly shaped end portions of lifter gallery openings to absorb all longitudinal and lateral side loads.  The lifters are preferably made by investment casting of steel alloys.  The investment casting permits the use of thin semi-cylindrical walls at each end of the valve lifters which also have internal reinforcing ribs extending on their undersides.
Patent CA-2063056-C (CA)
Title: Snap-in connector with integral spring
Inventor: FAVALORA MARK L
IPC: H02G3/06
Filed: 1992-03-13
Granted: 2002-05-14
Abstract: A connector for coupling an electrical conduit in an aperture in a support having a wall of variable thickness.      The connector includes a body member having resilient legs with locking tongues on one end and a conduit retaining formation on the other end, and a frusto-conical spring coupled to the body member. The spring is integrally coupled to the body member between the locking tongues and retaining formation. The connector is sealingly engaged with the support by engagement of the spring on one side of the support and engagement of the locking tongues on the other side.
Patent CA-2064110-C (CA)
Title: Methods of and apparatus for heating elongated glass substrate
Inventor: ELLIOTT RAY STAHL
IPC: C03B37/018
Filed: 1992-03-26
Granted: 1998-04-21
Abstract: A glass tube (31) from which optical fiber is to be drawn is heated by a torch assembly comprising a plurality of nozzles (54-54) disposed on a carriage. In order to avoid contamination of the tube by particles of the torch assembly resulting from thermal degradation, the nozzles are disposed in a plane which is normal to an axis (36) of the tube with each nozzle axis inclined so that flame fronts associated with the nozzles are substantially closer to the tube than to the torch assembly. Reaction of materials which are flowed into the tube is enhanced by including a second row of nozzles (91-91) which are inclined within a plane which is inclined to the longitudinal axis of the tube. In order to collapse the tube into a rod, a muffle member (100) preferably is caused to be disposed about the tube with an opening in the periphery of the muffle member to allow portions of the gas flows to converge and to allow heat energy to be transferred from the flame fronts to the tube.
Patent CA-2065801-C (CA)
Title: Tension roller leveler
Inventor: YAMAMOTO KEIJI
IPC: B21D1/05
Filed: 1992-04-10
Granted: 1999-08-03
Abstract: ABSTRACT          A tension roller leveler which will produce neither abnormal noise nor flaws called chatter marks even in a high-speed treatment line.  A plurality of work rolls are disposed on each of an upper frame and a lower frame.  The upper frame and/or the lower frame can be regulated to adjust opening degrees of the work rolls in the inlet side and the outlet side for a strip.  A plurality of the work rolls are each supported indepen-dently over substantially the entire length by one set of backup rolls in two rows, and the backup rolls in two rows are arranged in a zig-zag pattern such that shaft support portions of one set of the backup rolls in two rows will not overlap with each other.
Patent CA-2075863-C (CA)
Title: Synchronous drive belt with oblique and offset teeth
Inventor: GREGG MICHAEL J W
IPC: F16H55/38
Filed: 1992-08-12
Granted: 1998-09-15
Abstract: A synchronous drive belt has at least two adjacent rows of teeth which are at oppositely balanced oblique angles to the longitudinal direction of the belt.  In addition, the centerlines of the teeth in the adjacent rows are offset from each other by a distance of up to 10% to 90% of their pitch.
Patent CA-2076366-C (CA)
Title: Telecommunication interface apparatus and method
Inventor: REMION MICHEL J
IPC: G06F13/00
Filed: 1991-02-26
Granted: 1998-05-26
Abstract: An interface apparatus (12) and method for transmitting data between a host comp uter (16) and a telecommunication network (11) without requiring special host-based computer programs to communicate with the interface apparatus (12). The invention uses existing ports of the host computer (16), utilized in their standard method of operations, such as driving a printer (18) or communicating with a workstation. This reduces cost, simplifies use, and permits the use of the telecommunication interface apparatus (12) with any computer utilizing its existing programs. The interface apparatus (12) scans the beginning of a message for a command code comprising a string of special characters and the adressee number and/or code. If such a code is detected, the message is transmitted over the telecommunication network (11). Otherwise, the m essage is passed through the interface apparatus (12) unchanged to be printed or otherwise output.
Patent CA-2077739-C (CA)
Title: Camming device
Inventor: GOMRINGER GARY W
IPC: A61B17/22
Filed: 1992-09-08
Granted: 1996-05-28
Abstract: An expandable endarterectomy cutting tool for use in incising plaque at a stenosis in an artery of a patient includes a guide wire,  an over-the-wire catheter, and a camming mechanism which is attached near the distal end of the guide wire.   The  cam mechanism  is  formed with  a plurality of ramps which incline outwardly from the guide wire  in a distal  direction  along  the  guide wire.   A plurality of tethers each have one end attached to the catheter and their other end slidably mounted on one of the ramps  in  the  camming  mechanism.    A  cutting  blade  is attached to each tether near the end of the tether in the ramp so that as the guide wire is pulled in a proximal direction relative to the catheter, the blades are pushed by the tether up their respective ramp to be radially extended from the cam mechanism.   On the other hand, pushing the guide wire in a distal direction relative to the catheter will draw each extended blade back down its respective ramp to retract the blades.  In operation, the cam mechanism of the tool is placed distal to the stenosis and the blades are extended.   The blades are then drawn across the plaque in the stenosis to weaken the plaque for subsequent  dilation  of  the  artery  in  an  angioplasty procedure.  The blades are then retracted and the tool is withdrawn from the artery.
Patent CA-2081419-C (CA)
Title: Circular, stackable, rotatable display case for floppy disks/compact disks and the like
Inventor: DEPALMA MICHAEL J
IPC: G11B33/04
Filed: 1992-10-26
Granted: 1998-06-30
Abstract: A circular, stackable, rotatable display case is provided for floppy disks/compact disks and the like which consists of a mechanism for radially storing a plurality of the floppy disks/compact disks and the like and another mechanism for rotating the radially storing mechanism, so that any one of the floppy disks/compact disks and the like can be selectively removed from the radially storing mechanism.
Patent CA-2081531-C (CA)
Title: Cooking fuel container and burner
Inventor: KIEFER NATALIE ROBIN
IPC: F23D3/08
Filed: 1992-10-27
Granted: 2005-02-01
Abstract: A cooking fuel device includes a fuel container and a wick supporting member positioned at the tap of the container. The wick supporting member substantially closes the fuel container and contains at least one aperture to communicate with the interior of the container. A wick formed from a piled fabric includes a burn portion and a fuel feed portion. The fuel feed portion extends through the aperture into the full in. the container. A cover having a central aperture is positioned over the top of the container to define the burn area on the wick. A peelable lid is adhesively attached to the cover and the wick which when removed will raise the pile on the wick.
Patent CA-2081689-C (CA)
Title: Process for preparation of --pyrone derivatives
Inventor: TAKAHASHI HIDEHIKO
IPC: C12P17/06
Filed: 1992-10-29
Granted: 1995-10-17
Abstract: Disclosed is a novel process for the produc-tion of pyrocomenic acid [3-hydroxy-4(1H)-pyran-4-one and rubiginol [3,5-dihydroxy-4(1H)-pyran-4-one, which are starting materials for synthesis of maltols useful as food spices as well as additives for cosmetics.         The chemical reactions possibly taking place in the fermentation and the heating post-treatment thereof in the present invention are shown as follows:                                 or/and   .alpha.-Methyl-D-xyloside IIa  IIb                               +         III                  IV     The microorganisms usable in the above oxidation fermentation include Gluconobacter rubiginosus IFO 3244, Gluconobacter suboxydans IFO 3254, Gluconobacter melanogenus IFO 3293, Pseudomonas fluorescens IFO 3081, Erwinia carotovara IFO 3380 etc.
Patent CA-2089081-C (CA)
Title: Heart valve prosthesis
Inventor: OLIN CHRISTIAN
IPC: A61F2/24
Filed: 1991-08-09
Granted: 2003-05-06
Abstract: A heart valve prosthesis (1) has a substantially annular valve body (2) and two leaflets (3) which are disposed in the valve body (2) and, by means of a hinge mechanism (4, 5a, 5b), are pivotable between an open position and a closed position. The leaf-lets (3) are substantially semicircular and evenly curved in two perpendicular directions, one direction being perpendicular to the diameter of the semicircle, so as to bulge outward, as seen from the centre of the annulus (2). The leaflet edges (6) closest to the diameter of the semicircle are so curved that they, when the valve is closed, are applied against one another along their entire length. Further, two projections (7) are provided on the inside of the annulus (2), entirely within the width thereof, the corner por-tions (8) of the leaflets (3) being applied against these projections when the valve is closed.
Patent CA-2089242-C (CA)
Title: Cassette sleeve with tear cards
Inventor: KURNIT PHILIP S
IPC: G11B23/40
Filed: 1993-02-10
Granted: 1996-01-16
Abstract: A packaging device for an audio cassette comprising a sleeve having opposed front and rear walls, opposed side walls and end openings for permitting the introduction of a cassette within a sleeve.  A flap extends from the sleeve and is easily detachable from the sleeve to define a card, which has printed material thereon related to the audio material recorded on said tape.
Patent CA-2091002-C (CA)
Title: Taxane derivatives, their preparation and use in oncology
Inventor: BOMBARDELLI EZIO
IPC: A61K31/22
Filed: 1993-03-04
Granted: 2004-06-08
Abstract: The preparation of new 3,11-cyclotaxanes having the general formula I.      wherein each of R' and R", independently of the other, is hydrogen, alkanoyl of 2 to 7 carbon atoms, -CO-CHOHCH(C6H5)NHCOC6H5, or -COCHOHCH(C6H5)NHCOOC(CH3)3.        Cyclotaxane 1a (1, R'=R"=H) may be isolated from plants of the genus Taxus. New cyclotaxanes 1 have antiblastic activity.
Patent CA-2092436-C (CA)
Title: Fastening device
Inventor: DUBOST DOMINIQUE
IPC: F16B37/04
Filed: 1992-07-24
Granted: 1999-01-19
Abstract: A device for securing at least two elements together by means of a screw (3) and a transfer nut (4) adapted to be engaged in the recessses (1a, 2a) of said elements (1, 2) is characterized in that the transfert nut (4) includes a nut plate (6) having a threaded hole (7), on either side of which are located areas (8, 9) for the passage of the arms (10, 11) of a fastening unit (12) having a generally flare-shaped U cross section. The intermediate portion (13) of the latter includes a hole for the passage (14) of the screw (3) opposite the threaded hole (7) of the nut plate (6) and is adapted to be applied against a stop surface of the screw (3) or of the element (1) on which said screw rests, such that the nut plate causes the arms (10, 11) of the fastening unit (12) to be spaced apart and abuts on a contact surface of the other element (2) during screwing, in order to secure the elements together.
Patent CA-2093463-C (CA)
Title: Interchangeable ornamentation system
Inventor: MARLEAU GILLES
IPC: B44C5/04
Filed: 1993-04-06
Granted: 2001-06-12
Abstract: A system for interchangeably ornamenting jewelry, clothing, accessories, eyeglasses, buttons, luggage, furniture, furnishings, or any combination of personal effects, so that a co-ordinated display of colour, fabric, and design information can be quickly and inexpensively applied to given articles, thus obviating the need for buying several articles or for taking several articles when travelling, when a change of appearance is desired. Additionally the system can be used for interchangeably ornamenting walls and furniture in public situations at the office or private situations at home, including public and private transportation equipment, including interior panels and components. Some typical examples with appropriate fastening means are described.