baber/WOPTO huggingface dataset:
Patent CA-2332028-A1 (CA)
Title: Sliding ring non-return valve
Inventor: DRAY ROBERT F
IPC: B29C45/52
Filed: 1999-05-04
Abstract: A sliding ring non-return valve primarily for use with an injection molding machine utilizes a frame having cut therein one or more longitudinal grooves. Material flows around the outer edge of a flange surface, into an inlet area, and through the longitudinal grooves in the frame's outer surface before entering an accumulation volume. A ring, dimensioned to fit slidably around the frame, blocks material flow into the grooves while in an upstream position and allows material to pass through the grooves while in a downstream position. In an alterative embodiment, the non-return valve utilizes a frame that surrounds a central passage accessed by inlets. The outlet passage is located downstream of said inlet and connects the central passage with an accumulation volume. A ring is dimensioned to slidably fit around the frame. A flange surface limits the ring's upstream travel, while grooves in the flange surface throttle, or limit, material flow into the inlet area. In an upstream position, the ring blocks material flow into the inlets and seals against a radial seal surface on the flange.  In a downstream position, the ring allows positive material flow from the inlet to the outlet. The material backflow around a downstream restraining cap forces the ring to its upstream position prior to the injection stroke.
Patent CA-2333598-A1 (CA)
Title: Toxoplasma gondii antigens, p35, and uses thereof
Inventor: CHOVAN LINDA E
IPC: G01N33/569
Filed: 1999-05-27
Abstract: The present invention relates to combinations or mixtures of antigens which may be used in the detection of IgM and/or IgG antibodies to Toxoplasma gondii as well as to the P35 antigen which may be used to distinguish acute from chronic Toxoplasmosis. Furthermore, the present invention also relates to methods of using these combinations of antigens, antibodies raised against these combinations of antigens or against the novel P29 antigen thereof, as well as kits and vaccines containing the antigens present in the combinations.
Patent CA-2335698-A1 (CA)
Title: Ski boot with improved closure strap
Inventor: FOUGERE RAYMOND D
IPC: A43B5/04
Filed: 1999-06-14
Abstract: A ski or other similar sport boot is provided which includes a boot base for accommodating the foot of the wearer of the boot and a soft inner boot adapted to fit inside or on the boot base and surround the lower leg of the wearer of the boot. The boot also includes an upper cuff attached to the boot base. A closure strap for securing the upper cuff and inner bladder to the lower leg of the wearer of the boot is provided. The closure strap has a non-elastic band (1 and 1A) attached to an elastic portion (2). It also includes a securing means (3, 3A and 4) for adjusting the length of the non-elastic band and securely maintaining the adjusted length of the band in a desired position.
Patent CA-2339996-A1 (CA)
Title: Method for treating hot flashes in humans
Inventor: BOBROVE ARTHUR M
IPC: A61K31/401
Filed: 1999-08-31
Abstract: This invention is directed to methods for treating hot flashes as a consequence of declining levels of estrogen or androgen in humans.  Specifically, the methods of this invention involve the topical administration of a glycopyrrolate analog of Formula (I) to humans.
Patent CA-2341949-A1 (CA)
Title: Novel compounds for the management of aging-related and diabetic vascular complications, process for their preparation and therapeutic uses
Inventor: SANKARANARAYANAN ALANGUDI
IPC: A61P25/00
Filed: 2001-03-23
Abstract: The invention discloses novel compounds of the pyridinium series useful for the management of diabetes and aging-related vascular complications, including kidney disease, nerve damage, atherosclerosis, retinopathy, dermatological disorders and discoloration of teeth, by breaking preformed AGE, or pharmaceutically acceptable salts thereof.      The invention also discloses, method for preparation of the novel compounds of the series and pharmaceutical composition comprising one or more of these compounds. The invention further discloses a method of treatment of a diabetic patient by administering the compounds either singly or in combination with drugs for antidiabetic therapy.
Patent CA-2342483-A1 (CA)
Title: Method and apparatus for distributing electric power
Inventor: MCMILLAN GLENN
IPC: H01H71/52
Filed: 2001-03-28
Abstract: An electric power distribution system includes a first power distribution apparatus for distributing power to individual load circuits from a main power source and a second power distribution apparatus adjacent the first apparatus. The second panel has a base, an electric power distribution conductor supported by the base for providing electric power from the alternate electric power source and a load circuit selector site on the base and is operable to supply power from the main electric power source and the electric power distribution conductor to a signal-controlled selector installed at the load circuit selector site.
Patent CA-2343527-A1 (CA)
Title: Bidirectional communication between control element and electrical devices
Inventor: SLATER JAMES S
IPC: G08B26/00
Filed: 2001-04-06
Abstract: A software driven monitoring system includes a common control element coupled to a plurality of monitoring devices. The devices can indicate to the control element that a predetermined condition has been detected. Where the control element transmits a status inquiry command to the devices, those devices exhibiting the status provide the same indication to the control element as is indicative of the predetermined condition. One indication is a shunt or a short circuit of a medium between the common control element and the devices. An existing system can be upgraded by installing the control element, or upgrading an existing control program. Alternately, the devices can be installed in a system wherein the control element does not issue the status inquiry command. In those installations, the monitoring devices never issue a status reply as the required command is never received.
Patent CA-2343912-A1 (CA)
Title: Mining machine and mining method
Inventor: MULLET MERLE R
IPC: E21C25/58
Filed: 1999-09-07
Abstract: A mining machine (20) for combined entry and retreat cutting of material located in underground seams including, a movable mainframe (21), a wing (50, 51) extending ahead of the movable mainframe, a cutter assembly (100) positionable proximate the end of said wing for entry cutting a hole in the material when the wing is aligned with the direction of movement of the mainframe, a pivotal connection (130) between the mainframe and the wing for orienting the wing at an angle to the direction of the movement of the mainframe, and a carriage mechanism (80) for moving the cutter assembly along the wing for cutting of the material in proximity to the wing during retreat cutting of the material.
Patent CA-2347967-A1 (CA)
Inventor: WULFF MARKETTA
IPC: A23L33/21
Filed: 1999-10-25
Abstract: L'invention concerne une substance pour la réduction du taux de cholestérol et de lipides, à base de chitosane microcristallin sous forme de dispersion solide ou en gel. Le chitosane microcristallin sous forme de dispersion en poudre et/ou gel contient un mélange de deux fractions possédant des poids moléculaires différents, l'une réduisant le taux de cholestérol et l'autre le taux de lipides. Le chitosane cristallin est également combiné à des substances actives synergiques, telles que des acides organiques du type acide ascorbique et/ou des carbonates tels que du carbonate de sodium, du carbonate de calcium et/ou du carbonate de magnésium, pour l'augmentation du taux de cholestérol et la réduction du taux de lipides.
Patent CA-2351085-A1 (CA)
Inventor: URECH WERNER
IPC: B23K26/00
Filed: 1999-09-14
Abstract: The invention relates to a method for producing welded blanks (16). Said blanks are maintained in a substantially upright position by holding devices (17) and the welding process is carried out in this position using a laser welding device (11, 13). The inventive method and device provides a means for substantially saving space, both with regard to the treatment and handling of the blanks vis-à-vis known horizontal arrangements.
Patent CA-2351931-A1 (CA)
Inventor: SEGAMI HIDEAKI
IPC: F16G13/02
Filed: 2001-06-27
Abstract: A low noise roller chain includes a rigid roller made of metal and an elastic roller made of elastic material that are arranged end to end and fitted on a bushing between two opposed inner plates so as to jointly form a roller assembly. The width of the elastic roller is 13 to 45% of the overall width of the roller assembly, and the thickness of the elastic roller is larger than the thickness of the rigid roller by 5 to 25 % of the thickness of the elastic roller. with the elastic roller thus constructed, noise generated upon abutment of the roller chain with a sprocket can be effectively suppressed without deteriorating the du-rability of the rigid metal roller. The elastic roller may be arranged in a zigzag pattern in the longitudinal direction of the roller chain.
Patent CA-2353231-A1 (CA)
Inventor: LEWIS NORRIS E
IPC: G02B6/35
Filed: 2001-07-19
Abstract: An m-input/n-output (e.g. 1x1, 1x2, 2x2) optical fiber switch includes a switch substrate formed with v-grooves in which singlemode fibers are disposed with their ends operatively arranged in relation to a deflecting mirror to transmit or receive optical signals. To prevent misalignment between the optical paths defined by these singlemode fibers, a lens is fused to directly to each of the singlemode fiber ends to eliminate the need for separate collimating lens and create a stable and dimensionally invariable interface between the fiber and the lens, resulting in a more compact optical switch arrangement.
Patent CA-2354496-A1 (CA)
Title: Impact resistant lock apparatus with anti-theft lock core
Inventor: CHEN WATERSON
IPC: E05B27/06
Filed: 2001-07-27
Abstract: A lock apparatus includes a lock core device received in a lock core chamber of a lock body and having a key operable lock core, a shackle member with a leg portion inserted into a shackle insert hole in the lock body, and a catch member received in a catch chamber that extends from the lock core chamber to the shackle insert hole . The lock core device has a latch member disposed in the catch chamber and formed with a pin hole that is eccentric to an axis of the lock core. The catch member has a first end portion for engaging the shackle member, and an opposite second end portion formed with a pin which extends rotatably into the pin hole for engaging the latch member such that the catch member is movable between locking and unlocking positions during locking and unlocking movement of the latch member.
Patent CA-2354742-A1 (CA)
Title: Fender structure for an all terrain vehicle
Inventor: PORTELANCE MARTIN
IPC: B62J15/00
Filed: 2001-08-06
Abstract: An all terrain vehicle (ATV) includes a plurality of wheels and a fender structure positioned over the wheels having a support portion designed as and defining a load-bearing surface. The fender structure may include a plurality of raised support portions that increase rigidity and load capacity. Additionally, it is not necessary to support either the fender structure or the support portion using the bumper of the ATV. The fender structure may be formed with plastic material, such as polyethylene, polypropylene or fiberglass-charged polyethylene, and may be manufactured using a blow-molding technique or an injection molding technique. The ATV may also include mud guards and a floor board that extends between the mud guards. The mud guards and the floor board may be formed as an integral or one piece unit with the fender structure. The mud guards can be injection molded or blow-molded while the fender structure can be blow-molded.
Patent CA-2358705-A1 (CA)
Inventor: POWELL DUANE
IPC: F16K31/04
Filed: 2000-01-28
Abstract: A valve closure system (10) for rotating an actuator (52) of a valve (12) relative to a body (46) of the valve to operate the valve from open to closed.     The system contains a motor (14) having a rotatable shaft (82), a mounting that comprises plural parts including a bracket (22), for associating the motor with the valve, and a coupling (16, 18) for coupling the motor shaft to the valve. The bracket comprises a plate having a surface defining a notch (64) that has an entrance at a perimeter of the plate and a shape enabling the plate to associate with the valve body by disposing the plate alongside the valve body with the notch entrance aligned with the valve body and then moving the plate laterally of the valve actuator axis (54) to cause of the valve body to pass through the notch entrance and enter the notch.
Patent CA-2359761-A1 (CA)
Title: Human and mouse trek-1 potassium channel protein and their use
Inventor: LAZDUNSKI MICHEL
IPC: G01N33/50
Filed: 2000-02-11
Abstract: Human and mouse TREK-1 potassium transport proteins are disclosed as well as a method for using potassium transport proteins for identifying substances having anesthetic properties, such as producing a safe, reversible state of unconsciousness with concurrent amnesia and analgesia in a mammal upon inhalation, in a method comprising (a) contacting the test substance with a mammalian potassium transport protein, wherein said potassium transport protein exhibits outward-going potassium rectification; and (b) determining the potassium transport activity of the potassium transport protein, wherein an activation of potassium transport is indicative of the test substance having anesthetic properties.
Patent CA-2361629-A1 (CA)
Inventor: NADJAFIZADEH HOSSEIN
IPC: A61M16/00
Filed: 2000-02-10
Abstract: L'invention concerne des procédés de commande d'un appareil de fourniture de  pression d'air à un patient souffrant de troubles du sommeil tels qu'apnées,  le patient portant un masque (MVA) par lequel de l'air sous pression est fourni à ses voies aériennes supérieures par l'appareil, dans lesquels: on mesure la pression d'air dans le masque (MVA) et le débit d'air fourni au masque (MVA); on détermine à partie des variables mesurées, si des événement s représentatifs de troubles du sommeil apparaissent ou non.
Patent CA-2362993-A1 (CA)
Title: Method and apparatus for intervertebral implant anchorage
Inventor: WILLIAMS LYTTON A
IPC: A61B17/02
Filed: 2000-02-07
Abstract: Methods and devices are provided for intervertebral implant anchorage. An implantable device for insertion into an intradiscal section between adjacent vertebrae is provided. The implantable device includes at least one anchor plate which comprises a plate member sized to be positioned within an intradiscal section between adjacent vertebrae and a plurality of anchoring elements extending from a surface of the plate member, each anchoring element including a distal portion capable of being introduced into the vertebra through the vertebral end plate; and an intradiscal component coupled to the anchor plate.
Patent CA-2365252-A1 (CA)
Inventor: REEDER ROBIN A
IPC: H01S3/08
Filed: 2000-12-19
Abstract: The inventive rod includes a gain medium having first and second equal length portions (110) sharing a common optical axis and an optical rotator (101) disposed between said first and second portions which optical rotator compensates for birefringence. In an exemplary case, the optical rotator includes first (101a) and second (101b) waveplates optically coupled to one another and oriented with respect to one another by a predetermined angle, where the first waveplate receives a polarized beam having a first state, and the second waveplate produces the polarized beam having a second state, the first and second states differing from one another by 90~. Multiple rotators can be employed to compensate strongly birefringent rods, each rotator compensating a section of a rod constructed from a plurality of equal length optical gain elements.
Patent CA-2368973-A1 (CA)
Inventor: MONTAUT BRIAN EMILE
IPC: G03B17/24
Filed: 2000-04-03
Abstract: Un appareil photographique (1) comprend un microprocesseur (26) qui commande un projecteur (35) en vue de projeter une échelle de mesure (12) comportant des graduations (15) sur deux bords périphériques (17 et 18) d'un film (3) dans un plan d'image (4). Le microprocesseur (26) détermine le grossissement (positif ou négatif) d'une image (2) formée sur le film (3) par rapport à l'objet à partir duquel est formée l'image (2) ; et l'espacement des graduations (15) correspond au nombre d'unités métriques représenté par l'espacement des graduations (15) et le grossissement de l'image (2), de sorte que lorsqu'on forme une impression sur papier photographique, les dimensions linéaires de l'image dans le plan du papier photographique peuvent être lues facilement, directement à partir des échelles de mesure formées sur la photographie, qui correspondent aux échelles de mesure (12). Les dimensions lues sur l'échelle de mesure (12) sont les dimensions réelles de l'objet.
Patent CA-2371978-A1 (CA)
Title: Packet switch
Inventor: KAMIYA SATOSHI
IPC: H04L47/52
Filed: 2002-02-14
Abstract: A virtual output queuing controlling device 200 in the input buffering switch with a VOQ technique comprises a class bandwidth management section 201 for a CBR class, and a connection request generation section 202 that makes connection request for a switch scheduler that can execute three-stage priority control. The connection request generation section 202 makes connection request of the CBR class prior to the connection request of the other classes for the switch scheduler.
Patent CA-2374602-A1 (CA)
Inventor: TSUKIJI NAOKI
IPC: H01S5/125
Filed: 2002-03-04
Abstract: A semiconductor device and method for providing a light source suitable for use as a pumping light source in a Raman amplification system are provided. The device upon which the method is based includes an active layer configured to radiate light; a light reflecting facet positioned on a first side of the active layer; a light emitting facet positioned on a second side of the active layer thereby forming a resonant cavity between the light reflecting facet and the light emitting facet; and a partial diffraction grating having a predetermined length and positioned on a light emission side of the resonator. The predetermined length of the partial diffraction grating is selected such that the semiconductor device emits a light beam having a plurality of longitudinal modes within a predetermined spectral width of an oscillation wavelength spectrum of the semiconductor device. The predetermined length of the partial diffraction grating may be set in relation to a length of the resonant cavity, or in relation to a coupling coefficient .kappa.i of the partial diffraction grating.
Patent CA-2377816-A1 (CA)
Title: Process for preparing rubber latex containing water in particles
Inventor: MIZUTA TOSHIO
IPC: C08F285/00
Filed: 2001-05-09
Abstract: A rubber latex which is for use as an excellent impact modifier for thermoplastic resins. The rubber latex is obtained by conducting seed polymerization using a seed polymer which is highly hydrophilic and sufficiently swells in rubber monomers. The latex contains water in the particles.
Patent CA-2378039-A1 (CA)
Title: Process and apparatus for the capacitive demineralization of liquids containing ions
Inventor: SITTER ALOIS
IPC: C02F1/469
Filed: 1999-07-21
Abstract: The invention relates to a process and apparatus for the capacitive demineralization of liquids containing ions in which, after introducing the liquid into a container, an electric field is applied to capacitor plates (8, 9), which leads to ions of the liquid being conducted through a filter wall (7). The ions conducted through are deposited on the capacitor plates (8, 9) as bilayers (15, 16). By introducing pulsed voltage peaks, microcrystalline structures which result from ionic compounds are precipitated and then removed from the apparatus (1).
Patent CA-2378329-A1 (CA)
Inventor: JOINSON DANIEL
IPC: E21B47/12
Filed: 2000-06-30
Abstract: A first set of apparatus is arranged for transmitting data from a point in a cased section of a well (1, 3) to a remote location. The apparatus may be used as a relay station (6) to increase operational depth. Signals are applied to and received from the string (1) at the relay station (6) and a selected length of the string (1) is provided with insulating spacer means (9) on either side of the relay station to ensure that the string (1) and casing (3) are effectively isolated for a selected minimum distance. This enables potential differences to be both applied to and detected from the string (1), thus allowing data transmission and reception. A second set of apparatus (figure 8) is arranged for transmitting from an internal unit (408) inside a cased section of the well (401, 403) to the immediate surrounding area outside the casing (403). The internal unit (408) injects current into the string (401). A toroid (415) which surrounds the casing (403) is provided to pick up signals. Spaced connections between the string (401) and casing (403) are provided by conductive packers (411). A mismatch in the current flowing in the string (401) and casing (403) is generated so that a non-zero flux is seen by the toroid and hence a signal can be received.
Patent CA-2379513-A1 (CA)
Title: Chaise longue
Inventor: LO ALBERT CHONG-JEN
IPC: A47C4/42
Filed: 2002-03-28
Abstract: A chaise longue includes two foot frames of an inverted U shape, a seat and backrest composed of two side rods and a soft surface sheet fixed between the two side rods, which have respectively a sloped down front portion, a nearly horizontal intermediate portion and a sloping-up portion, and a support device pivotally fixed with rear sides of upper ends of the two side rods. The support device consists of two support rods and a support base connected pivotally with inner ends of the two support rods. The support rods have their outer ends respectively pivotally connected to the two side rods so that the two support rods may be expanded to form a line with the support base between the two side rods to expand the soft surface sheet. So the chaise longue can be collapsed to a small size for package to reduce the costs for transporting and prolong the service life of the soft surface sheet.
Patent CA-2380923-A1 (CA)
Title: Method and apparatus for multiple band voltage controlled oscillator with noise immunity
Inventor: SEE PUAY HOE
IPC: H03B5/08
Filed: 2000-08-02
Abstract: An RF Voltage Controlled Oscillator (VCO) design having improved power suppl y noise immunity. More particularly, a VCO resonant circuit that provides a hi gh circuit Q, immunity to noise, and is tunable over multiple distinct bands. T he resonant circuit is implemented in conjunction with an integrated circuit oscillator that requires a tuned circuit to determine the frequency of operation. When the integrated circuit oscillator is used as a Local Oscillator (LO) within a wireless phone it is subjected to numerous sources of power supply noise. In a Code Division Multiple Access (CDMA) wireless phone  system the power supply to portions of the RF transmit path are cycled on an d off depending on the transmitted data rate. The present invention provides a n oscillator with increased immunity to the noise induced on the power supply due to power supply cycling.