baber/WOPTO huggingface dataset:
Patent CA-2208270-C (CA)
Title: Open frame injection molding machine
Inventor: NAVARRE LAWRENCE J
IPC: B29C45/17
Filed: 1995-12-01
Granted: 2000-05-02
Abstract: An injection molding machine (10) is provided with an open frame (12) specifically designed to avoid angular displacement of the stationary platen (14) during the molding process. More particularly, the stationary platen (14) and the supporting frame (12) are configured to maintain a constant moment of inertia relative to the line of force acting on the platen during the clamp closed part of the cycle, so that it displaces linearly when force is applied. In addition, the frame (12) is provided with integral support members (26) to connect with the die height adjustment mechanism. The support members (26) are positioned on the frame (12) to minimize the distance of the open frame, thus minimizing the length of frame (12) subject the deflection when the force is applied.
Patent CA-2213948-C (CA)
Title: Ultrasonic dissector
Inventor: WHITE JEFFREY S
IPC: A61B17/32
Filed: 1997-08-26
Granted: 2006-06-06
Abstract: An ultrasonic surgical instrument for dissection and coagulation of tissue is provided. The surgical instrument includes a vibration coupler supported within a housing and operably connected to an ultrasonic generator. An angled blade member is connected to the distal end of the vibration coupler to conduct high frequency vibration from the ultrasonic generator to the blade member. A clamp member is positioned adjacent to the blade member and is movable from a first position to a second approximated position. The clamp member and angled blade member combine to enhance contact between the tissue and the blade member during operation of the instrument to improve the performance of the instrument.
Patent CA-2214221-C (CA)
Inventor: CHOW HUGH
IPC: H03K3/03
Filed: 1997-08-28
Granted: 2000-06-06
Abstract: A voltage controlled oscillator comprising: a ring of inverters comprised of an odd number of serially connected CMOS inverter stages, the inverter stages being connected between first and second oppositely poled power leads, a MOSFET having a source-drain circuit connected between one of the power leads and a first power rail, the other power lead being connected to a second power rail, apparatus for operating the MOSFET in saturation, and apparatus for applying a control voltage to the gate of the MOSFET, referenced to the second power lead, whereby the MOSFET operates as a nonlinear current conduction device having a characteristic such as to linearize the voltage-frequency characteristic of the combined MOSFET - ring oscillator combination.
Patent CA-2218798-C (CA)
Inventor: GOTWALD FREDERICK L
IPC: H04N7/173
Filed: 1997-10-17
Granted: 2004-07-20
Abstract: Computer data provided according to a first data protocol, such as the Internet protocol, is communicated over a digital television broadcast network using a second data protocol such as MPEG2.      The computer data in the first data protocol is encapsulated in at least one data stream for distribution in conformance with the second data protocol. The at least one data stream encapsulating the computer data is multiplexed with a plurality of data streams conforming to the second data protocol for transmission over the network, which may be a cable or satellite television network. The data stream encapsulating the computer data is received from the network according to the second data protocol, and processed in accordance with the second data protocol to recover the computer data in the first data protocol. A prioritization scheme is provided wherein different messages in the first data protocol are prioritized in the output multiplex according to at least one of source address, destination address, data type and connection type.
Patent CA-2221370-C (CA)
Inventor: HARA YUKIHIKO
IPC: A61K31/352
Filed: 1997-11-17
Granted: 2004-03-02
Abstract: Disclosed is a pharmaceutical composition for the treatment of condyloma acuminata caused by human papilloma virus (HPV) which comprises tea catechin as an active component. This medication has no danger of side-effects and may be easily applied to or inserted in the infected area by patients themselves.
Patent CA-2227544-C (CA)
Title: Method of manufacturing molding for vehicle and extrusion molding machine used in performing such method
Inventor: LI DAREN
IPC: B29C48/12
Filed: 1997-06-05
Granted: 2005-03-15
Abstract: A method of manufacturing a molding having a molding body (12), a projection (15) and an outer lip (16) utilizes a fixed die having a main extrusion opening (24) corresponding to the cross-sectional configuration of the molding body (12) and the projection (15) and having a supplemental extrusion opening (25) corresponding to the cross-sectional configuration of the outer lip (16), and a movable die (31) having a shaping surface (33) to shape the outer surface of the projection (15) and adapted to move along a traveling path. The supplemental extrusion opening (25) is isolated from the traveling path of the movable die (31). The method includes the steps of forming the molding body (12) and the projection (15) by extrusion molding from the main extrusion opening (24), forming the outer lip (16) by extrusion molding from the supplemental extrusion opening (25), and moving the movable die (31) to change the cross-sectional configuration of the projection (15) by the shaping surface thereof.
Patent CA-2228193-C (CA)
Title: Fuel injector valve for liquified fuel
Inventor: HUNT DEVLIN A
IPC: F02M69/46
Filed: 1998-01-29
Granted: 2004-07-20
Abstract: A solenoid actuated fuel injector for liquified petroleum gas (LPG), compressed natural gas (CNG) or the like has a fuel passage therethrough and a valve to control the flow of fuel through the fuel passage. The valve has a valve head formed of a generally flexible and substantially resilient material engageable with a valve seat to prevent fuel flow through the injector. The valve is preferably spring biased to a closed position which compresses the valve head against the valve seat to prevent fuel flow between them. Compression of the valve head is preferably limited by contact between the metal valve body and the metal valve seat which limits the travel of the valve body relative to the valve seat. The valve head and valve seat are also constructed to be highly resistant to wear to provide a consistent seal between them. The valve head preferably engages the valve seat over a limited surface area to facilitate disengaging the valve head from the valve seat so that the force provided by the solenoid will be sufficient to accurately move the valve to its open and closed positions.
Patent CA-2234691-C (CA)
Title: Fuel cell
Inventor: TANIGUCHI SHUNSUKE
IPC: H01M8/02
Filed: 1998-04-14
Granted: 2005-01-11
Abstract: A current collector includes a thin porous substrate and a hydrophilic material, where the hydrophilic material is provided to holes of the thin porous substrate or surfaces of skeleton elements of the porous substrate so that hydrophilic areas formed by the hydrophilic material successively pass through the thin porous substrate between both surfaces of the thin porous substrate. In the current collector, water is let out through the hydrophilic areas and does not stay on an interface between an electrode and the current collector so that reaction gas is not hampered and is supplied, unlike a conventional current collector.      When the current collector is applied to a polymer electrolyte fuel cell, water is supplied with reliability through the hydrophilic areas to a polymer electrolyte membrane so that the polymer electrolyte membrane is effectively humidified. Tree current collector applied to a cathode achieves a profound effect because reaction product water tends to stay around a cathode of any types of fuel cells. The current collector also includes gas flow paths which are surrounded by particles of a hydrophobic material and pass through the thin porous substrate between both surfaces of the thin porous substrate. As a result, gas permeability of the current collector is maintained with reliability.
Patent CA-2235273-C (CA)
Title: Device for locking channel opening-closing handle of fluid controller
Inventor: NISHIMURA RYUTARO
IPC: F16K35/10
Filed: 1998-04-21
Granted: 2007-08-14
Abstract: A locking device comprises a stopper support fixed to the body of a fluid controller, and a stopper nonrotatably mounted on the stopper support and engageable with a channel opening-closing handle for preventing the rotation of the handle. The stopper mounted on the support is movable upward and downward between a locking position wherein the stopper engages with the handle and an unlocking position wherein the stopper is out of engagement with the handle. The stopper support is formed with an opening for fitting the controller body therein and an aperture for fitting the stopper therein. The stopper has a vertical portion slidably fitted in the aperture and formed with a lock attaching bore.
Patent CA-2237688-C (CA)
Title: Key agreement and transport protocol with implicit signatures
Inventor: MENEZES ALFRED JOHN
IPC: H04L9/28
Filed: 1996-10-18
Granted: 2007-07-24
Abstract: A key establishment protocol between a pair of correspondents includes the generation by each correspondent of respective signatures. The signatures are derived from information that is private to the correspondent and information that is public. After exchange of signatures, the integrity of exchange messages can be verified by extracting the public information contained in the signature and comparing it with information used to generate the signature. A common session key may then be generated from the public and private information of respective ones of the correspondents.
Patent CA-2238067-C (CA)
Inventor: NAKAJIMA SHINYA
IPC: G10L13/04
Filed: 1998-05-20
Granted: 2005-09-20
Abstract: A three-layered prosody control description language is used to insert prosodic feature control commands in a text at the positions of characters or a character string to be added with non-verbal information. The three-layered prosody control description language is composed of: a semantic layer (S layer) having, as its prosodic feature control commands, control commands each represented by a word indicative of the meaning of non-verbal information; an interpretation layer (I layer) having, as its prosodic feature control commands, control commands which interpret the prosodic feature control commands of the S layer and specify control of prosodic parameters of speech; and a parameter layer (P layer) having prosodic parameters which are objects of control by the prosodic feature control commands of the I layer. The text is converted into a prosodic parameter string through synthesis-by-rule. The prosodic parameters corresponding to characters or character string to be corrected are corrected by the prosodic feature control commands of the I layer, and speech is synthesized from a parameter string containing the corrected prosodic parameters.
Patent CA-2239279-C (CA)
Title: Image generating apparatus and method
Inventor: KOTANI NAOYA
IPC: G06T15/40
Filed: 1998-06-01
Granted: 2002-04-23
Abstract: An image generating apparatus comprising a multi-plane buffer comprising a plurality of planes, and can record R, G, B, A and Z values as pixels, and a multi-plane buffer processor which stores in said multi-plane buffer in sequence from closest distance from a vantage point a plurality of defocus data which is data consisting of object model data that has been at least coordinate converted, hidden surface processed, and defocus processed, and which assigns R, G, B, A and Z values to each pixel, this object model data being derived from an object whose positional relationships are to be represented from a vantage point using depth of field, which is the effective focus range within which the object is focused.
Patent CA-2241150-C (CA)
Inventor: VICKARS ROBERT ALFRED
IPC: E21B7/26
Filed: 1996-12-20
Granted: 2002-10-29
Abstract: A method for making piles and apparatus for practising the method of the invention are disclosed. The invention may be used to support the foundation of a structure, such as a building. The method draws soil displacing means (60) on a shaft (39) down through a body of soil (46) by turning a screw (34) at the lower end of the shaft. The soil displacing means forces soil out of a cylindrical region (74) around the shaft. The cylindrical region is filled with grout (70) which encapsulates and strengthens the shaft. The grout may be fed by gravity from a bath of grout around the shaft. The soil displacement means has a diameter smaller than a diameter of the screw and may be a disk extending in a plane generally perpendicular to the shaft.
Patent CA-2242831-C (CA)
Inventor: LE TIMOTHY VAN
IPC: A01G3/025
Filed: 1996-12-17
Granted: 2002-07-30
Abstract: A portable pruner (10) for cutting limbs comprising a hollow shaft (27) havi ng a longitudinal axis, a lower end (30) and an open upper end (28). The slidab le grip portion (32) is slidable along the longitudinal axis between a first an d a second position. A shearing mechanism (14) is attached to the upper open e nd (28) of the hollow handle (27) and includes a body (16) having a hook (22) adapted to receive and hold a limb. A cutting blade (24) is pivotally attach ed to the body (16) and selectively pivots against the hook (22) to cut the selected limb. The pruner (10) includes means (26) for pivoting the cutting blade (24) with respect to the hook (22) wherein the pivoting means (26) is responsive to movement of the sliding portion (32) between the first and second positions.
Patent CA-2247922-C (CA)
Title: Genetic sequences encoding flavonoid pathway enzymes and uses therefor
Inventor: BRUGLIERA FILIPPA
IPC: A01H5/02
Filed: 1997-02-28
Granted: 2012-01-10
Abstract: The present invention relates generally to genetic sequences encoding flavonoid pathway metabolising enzymes and more particularly to flavonoid 3'-hydroxylase (hereinafter referred to as "F3'H") or derivatives thereof and their use in the manipulation of pigmentation in plants and other organisms.
Patent CA-2264922-C (CA)
Inventor: BELL GARY M
IPC: B65D33/36
Filed: 1997-09-05
Granted: 2006-10-10
Abstract: A bag construction (1) for use to distribute flowable material is provided.  The bag construction generally includes first (4) and second (5) panels or panel sections oriented juxtaposed to one another. In one end of the bag construction, a base gusset (8) is provided between the panels. The base gusset includes apertures (9) therein, for distribution of flowable materials. In preferred embodiments, a rib-and-trough closure arrangement (31) is provided so that the pouch construction can be selectively closed to inhibit distribution of material, when desired. Methods of preparing such arrangements and methods of use are provided.
Patent CA-2267631-C (CA)
Inventor: MCCORMICK WILLIAM R
IPC: A63D15/00
Filed: 1999-04-15
Granted: 2003-04-08
Abstract: A billiard table leg and foot height adjuster comprising a bottom plate including at least one concentric bearing race and an upstanding peripheral rim, an upstanding boss in the center of the bottom plate, a billiard table support plate resting on the bearing race within the upstanding peripheral rim, an axle having a lower end, and an upper end projecting up through the boss and support plate, a snap ring retainer on the upper end of the axle for securing the support plate, and at least one set screw in the upstanding peripheral rim and projecting above the support plate to engage a billiard table foot. The foot includes a frustoconical lower portion for rotatable adjustment of the foot by manually gripping and rotating the foot.
Patent CA-2271166-C (CA)
Inventor: COUPLAND KEITH
IPC: A61K8/29
Filed: 1997-06-03
Granted: 2006-08-29
Abstract: Une composition de filtre solaire comprend un acide stéaridomique, ou un dérivé physiologique de ladite composition, combiné à une substance de blocage et/ou d'absorption des UV. L'acide stéaridomique peut également être utilisé pour traiter une inflammation causée par l'exposition aux rayons UV ou à la lumière solaire ou par des brûlures.
Patent CA-2271286-C (CA)
Inventor: DUNCAN WILLIAM MAX
IPC: C09K8/36
Filed: 1999-05-06
Granted: 2009-04-07
Abstract: Disclosed are invert oil emulsion drilling fluids in which the internal aqueous phase contains one or more water soluble polyethylene glycols dissolved therein. The fluids are characterized by an elevated low shear rate viscosity, hence excellent suspension properties, an elevated Shear Thinning Index, hence excellent drilling characteristics, and a high shale stability index, hence excellent cuttings stabilization and formation protection. Preferred polyethyleneglycols have a molecular weight from about 500 to about 10,000, preferably from about 1000 to about 10,000. Preferred fluids contain from about 5% to about 40% by weight of the polyethyleneglycol in the aqueous phase, most preferably from about 10% to about 30% by weight. Also disclosed is a method of enhancing the thermal stability of invert emulsion well drilling and servicing fluids which comprises dissolving in the aqueous phase thereof one or more polyethyleneglycols.
Patent CA-2274336-C (CA)
Inventor: BYERLEY MARK S
IPC: B29D30/20
Filed: 1999-06-11
Granted: 2007-01-23
Abstract: A belt and tread drum having an annular shell comprising a plurality of circumferentially spaced segments, each of which is mounted on a carrier which disposed in circumscribing relationship to a generally cylindrical actuator rotatably connected with a reciprocating piston disposed within a cavity defined between the actuator and a hub fixed to a central core of the drum. Translational movement of the piston between extended and retracted positions in a direction parallel to the rotational axis of the drum is converted into selected rotational movement of the actuator relative to the hub. A plurlaity of sets of links interposed between the segments and the actuator and hub have their first ends commonly pivotally pinned to a segment. The second end of one link of each set of links is pivotally pinned to the actuator and the second end of the other link of each set of links is pivotally pinned to the hub. Rotation of the actuator relative to the hub controls the arcuate separation of these second ends such that bringing these second ends toward contiguity moves the segments radially outwardly, and conversely, moving these second ends arcuately apart serves to move the segments radially inwardly of the drum. A hand wheel establishes maximum and minimum rotational movement of the actuator and provides a visual indication of the radial positions of the several segments, i.e. the diameter of the drum.
Patent CA-2278802-C (CA)
Inventor: HU ZHENZE
IPC: A61K31/045
Filed: 1998-01-29
Granted: 2002-12-24
Abstract: L'invention concerne des compositions ophtalmiques dotées de propriétés hydrophiles élevées, qui sont utiles comme: solutions hydratantes et lubrifiantes (c.-à-d. larmes artificielles), traitement d'yeux secs, solutions d'humidification et de lubrification de verres de contact, et véhicules d'administration de médicaments ophtalmiques. Les compositions en question renferment de la glycérine en combinaison avec du propylène glycol. Elles peuvent en outre renfermer des dérivés de cellulose, p. ex. de l'hydroxypropylméthylcellulose, ainsi que des agents de conservation, p. ex. du chlorure de benzalconium, du PHMB, de l'acide sorbique, etc. Des compositions préférées renferment au moins 11 % d'eau liée, ont un pH de 7,1 à 7,5 environ, et une osmolalité comprise entre 280 environ et 320 mOsm/kg environ.
Patent CA-2280173-C (CA)
Title: High speed, high density electrical connector
Inventor: COHEN THOMAS S
IPC: H01R13/514
Filed: 1998-01-15
Granted: 2008-09-16
Abstract: A high speed, high density electrical connector for use with printed circuit boards. The connector is in two pieces with one piece having pins and shield plates and the other having socket type signal contacts and shield plates. The shields have a grounding arrangement which is adapted to control the electromagnetic fields, for various system architectures, simultaneous switching configurations and signal speeds, allowing all of the socket type signal contacts to be used for signal transmission. Additionally, at least one piece of the connector is manufactured from wafers, with each ground plane and signal column injection molded into components which, when combined, form a wafer. This construction allows very close spacing between adjacent columns of signal contacts as well as tightly controlled spacing between the signal contacts and the shields. It also allows for easy and flexible manufacture, such as a connector that has wafers intermixed in a configuration to accommodate single ended, point to point and differential applications.
Patent CA-2290777-C (CA)
Title: Injection apparatus
Inventor: DRACH THOMAS J
IPC: A61M5/20
Filed: 1998-04-22
Granted: 2006-07-11
Abstract: The present invention comprises a non-needle injector (2) having the followi ng components: a non-needle syringe (126) installed in the injector (2) for holding medication prior to injection, the syringe (126 ) including an injection aperture (20) at the forward end thereof; a syringe plunger (130) slidable mounted to the rear end of the syringe (126) for forcing medication out the syringe aperture (20); a cartridge pressure control system (14) providing power to drive the syringe plunger (130), and thereby force medication out of the syringe (126); and a syringe control system (18) for controlling the activation of the syringe, the syringe control system (18) including a warning system which warns the user if a pre-injection condition is not met, an interlock system which prevents injection from taking place if the pre-injection condition is not met, and a sensing system which senses whether the pre- injection condition is not met, and conveys a signal to the warning and interlock systems informing as to whether the pre-injection condition is met.
Patent CA-2294761-C (CA)
Title: Drive wheel
Inventor: BECH MOGENS ILSTED
IPC: B60B19/00
Filed: 1998-06-30
Granted: 2004-11-30
Abstract: A drive wheel (10) for travelling over a surface comprising a support member (12), a wheel member (11) and a drive shaft (24). The drive shaft (26) has a drive means engaging a drive surface on the wheel member to rotatably drive the wheel member relative to the support member. The drive shaft (24) also has a longitudinal axis and the engagement of the drive means and drive surface define in vertical cross section a line of engagement that is at an acute angle to the longitudinal axis. The wheel member (11) has a tread portion (28) extending about its periphery and positioned such that it is intersected by the line of engagement substantially where it contacts the surface. A chassis for vehicles such as wheel chairs having one or more drive wheels according to the invention is also described.
Patent CA-2296417-C (CA)
Title: Vacuum extrusion system and method
Inventor: SADINSKI ROBERT L
IPC: B29C48/09
Filed: 1998-08-10
Granted: 2008-01-22
Abstract: A vacuum extrusion line includes a vacuum chamber (10) having an extrusion d ie (18) at one end and a water baffle immersion cooler (20) at the other end for extracting the extrudate to atmosphere, extrudate shaping and sizing equipment (62, 63, 64) downstream of the die (18), a large diameter fixed bulkhead (16) at the die (18), first (4 4) and second (46) large diameter movable sections surrounding the shaping and sizing equipment (62, 63, 64), and a smaller fixed section (24) of the chamber (10). The first section (44) sealing against the second section (46) and the fixed section (24) and telescoping over the fixed section to form a gap (68) with the second section (46) being movable within the limits of the gap (68). The second section (46) als o seals against the large diameter fixed bulkhead (16). In this manner the downstream equipment (62, 63, 64) can be fully exposed by movemen t of one or both movable sections (44, 46), and adequate volume and spatial working environment is provided for large through-put.</S DOAB>