baber/WOPTO huggingface dataset:
Patent CA-2185475-A1 (CA)
Title: Strech blow-molding process for the preparation of polypropylene contai ners
Inventor: LESCA CARLO
IPC: B29K23/00
Filed: 1996-09-13
Abstract: Stretch  blow-molding  process  for  the  preparation  of polypropylene  containers,  wherein  use  is  made,  as  the polypropylene material, of a crystalline propylene copolymer containing from 4 to 12% by weight of one or more C4-C8 .alpha.-olefins.
Patent CA-2186910-A1 (CA)
Title: Two-chamber metering device with an integral, sealing regulator for the amounts to be metered, and method of metering liquids
Inventor: BONGERS BERNHARD
IPC: G01F11/26
Filed: 1995-03-21
Abstract: The invention concerns a tubular two-chamber liquid metering device (1) f leaktight insertion into a container opening (3). The metering device (1) comprises a cylindrical wall (5) with a dosed base (6) and a cover (7) which is provided with a passage for a pouting duct (8). The wall (5) has at least one opening (14) in the region of the cover (7) and at least one further opening (13) is located on a peripheral line between the opening (14) and the base (6). Disposed in the outer cylindrical chamber defined by the wall (5), the base (6) and the cover (7) is a tubular body (10) which at one end is connected in a leaktight manner to the pouting duct (8) and at its other end maintains a distance from the base (6). The tubular body (10) has at least one opening (12) on a peripheral line in the region of the connection to the pouring duct (8) A freely movable body (11) with a circular cross-section is provided in the main metering chamber (19') defined by the inner cylinder (10) between the opening (12) and the base (6). The invention further concerns a method of metering liquids by means of a chamber metering device in which a free body is provided in the metering chamber in order to close a pouring duct. The volume of the free body is such that the free volume remaining in the metering chamber corresponds to the amount of liquid to be metered.
Patent CA-2187855-A1 (CA)
Title: Method and device for securing computers
Inventor: BISSONNETTE ALBERT JOSEPH MARC
IPC: G06F21/50
Filed: 1996-10-15
Abstract: A device for securing computers is in the form of an internally installed computer card. The computer card plugs into an ISA bus slot in a PC. The computer card includes a computer interface and microcontroller. The microcontroller has inputs for motion, power and tamper sensors and communicates with an on-board basic input/output system (BIOS) EEPROM for storing a BIOS security program and a serial EEPROM for storing security parameters and access passwords. The computer card includes a power circuit with NiCd batteries and a recharger for operating the device while the computer is off. The computer card is given a unique physical device address prior to installation. When the computer is powered up, the computer card is addressed by the computer during its BIOS start-up routine. The internal BIOS security program is then initialized, requiring a password before start-up continues. A password hierarchy provides for multiple levels of access to the security capabilities.
Patent CA-2188261-A1 (CA)
Title: Catheter system for controllably releasing a therapeutic agent at a remote tissue site
Inventor: LINDALL ARNOLD W
IPC: A61N5/06
Filed: 1995-03-16
Abstract: A catheter having a therapeutic agent chemically bonded to a substrate on its exterior surface using a linker which photolytically releases the agent uponexposure to light energy at an appropriate wavelength. The linker is attached to the substrate via a complementary chemical group, with the opposing end containing an aromatic ring with a nitro group in the ortho position relative to a methyl or ethyl group which is functionalized to accept a complementary bond to the therapeutic agent. The substrate may include materials such as glass, polyamide, polyester,polyolefin, polypropylene, polyurethane, or latex. The therapeutic agent may include peptides, proteins, steroids, carbohydrates, nucleotides, or other aliphatic or heterocyclic products, and may be bonded to a molecular lattice or meshwork to accommodate a high molecular concentration per unit area and the inclusion of ancillary compounds such as markers or secondary emitters.
Patent CA-2188494-A1 (CA)
Inventor: KONNO HIDEAKI
IPC: H03D1/02
Filed: 1996-10-22
Abstract: A dual mode demodulating device includes a first mixer which receives a first digital detect signal or an analog detect signal in switchover manner so as to detect a received modulated wave.  The device further includes a second mixer which receives a second digital detect signal, differing in phase by 90° from the fist digital signal, so as to detect a received modulated wave.  The device can demodulate both digital and analog modulated waves using only two mixers.  As a result, the size and manufacturing cost of the device can be reduced.
Patent CA-2188821-A1 (CA)
Title: Window tilt lock and frictional positioner shoe
Inventor: STARK IVAN L
IPC: E05D15/22
Filed: 1996-10-24
Abstract: An improved window assembly of the type having sliding, pivoting sashes, includes a window frame having a pair of jambs, a jamb liner secured to each of the jambs, a sash which is slidable within the jambs, and a frictional positioner shoe disposed within a channel in the jamb liner. The frictional positioner shoe provides frictional engagement between the sash and the jamb liners to securely hold the window in a raised position, and providing additional restraint against vertical movement of the shoe and rotational movement of the sash when it is tilted away from the plane of the window opening. Also provided is an improved window of the type having sliding, pivoting sashes, which include an elongate slidable member disposed within a channel in the jamb liner, and a rotatable member having an integrally attached brake member disposed within a bore passing through the elongate slidable member. The rotatable member has axial camming surfaces which engage complementary axial camming surfaces on the bore passing through the elongate slidable member. A pivot shaft connects the sash with the rotatable member, whereby rotation of the sash causes rotation of the rotatable member and engagement of the complementary camming surfaces, resulting in axial movement of the rotatable member toward and into engagement with a back wall of the channel.
Patent CA-2191394-A1 (CA)
Inventor: KAWABE KAZUKI
IPC: C07C29/12
Filed: 1996-11-27
Abstract: The present invention relates to a process for producing ethylene glycol from ethylene oxide wherein ethylene oxide in a gas resulting from oxidation of ethylene is absorbed in a specific absorbing solution, is allowed to react with carbon dioxide, converted into ethylene carbonate, and then subjected to hydrolysis to produce ethylene glycol.      According to the present invention, a large energy consuming step such as stripping of ethylene oxide and separation of excess amounts of water during the ethylene glycol production becomes unnecessary and the process can be greatly simplified by combining the ethylene oxide absorption step and the carbonation step.
Patent CA-2196456-A1 (CA)
Inventor: BAILLIE IAN A
IPC: G01B3/04
Filed: 1997-01-31
Abstract: Le précis n'est pas disponible en          Abstract Not Yet Available ce moment
Patent CA-2198872-A1 (CA)
Title: Method and system for extracting a solute from a fluid using dense gas and a porous membrane
Inventor: ROBINSON JAMES R
IPC: B01D61/24
Filed: 1995-01-17
Abstract: A method and system (10) for extracting a solute from a fluid or a dense gas may include a dense gas supply (12) and a gas supply line (48) for delivering a dense gas to a pressure equalization chamber (122) and to a pressurizable module (16) containing a bundle of porous hollow fibers. The system (10) also may include a fluid supply (14) and fluid supply line (40) for delivering a fluid to the chamber (122) and to the module (16). The chamber (122) includes a floating diaphragm (26) and serves to substantially equalize the pressure of the fluid and dense gas so that the pressure on both sides of the membranes in the module (16) is essentially the same. At least one of the fluid and dense gas contains a solute to be extracted, while the other one serves as an extracting medium. Solute extraction is driven by the concentration gradient of the solute across the membrane.
Patent CA-2202694-A1 (CA)
Inventor: SUGIKAWA HIROFUMI
IPC: H01M4/80
Filed: 1997-04-15
Abstract: The present invention is directed to a method of manufacturing a porous metal sheet having pores forming a pattern, comprising the steps of supplying metal powders to a peripheral surface of at least one pattern roller of a pair of rollers, on which a pattern consisting of a large number of depressions is formed; dropping metal powders to the depressions and accumulating metal powders on the peripheral surface of the pattern roller except on the depressions; and directly rolling the metal powders accumulated on the peripheral surface of the pattern roller by rotating a pair of rollers. It is preferable to laminate porous metal sheets or solid metal sheets manufactured by a method other than the above-described method on the metal sheet manufactured by the above-described method.
Patent CA-2204416-A1 (CA)
Title: Computer-based multifunction personal communication system with caller id
Inventor: SUN TING
IPC: H04M1/66
Filed: 1995-11-09
Abstract: An interface (1650) for personal communications systems is described which provides rapid identification of a caller and limited access based on a variety of parameters obtained from caller identification information encoded by the telephone company. The incoming telephone call information is compared to a preprogrammed access matrix to determine if the caller is authorized to access the personal communications system connected to the interface. A  telephone call screening method and apparatus which incorporates the encoded caller identification is also described.
Patent CA-2206042-A1 (CA)
Title: Disposable absorbent article having a mechanical fastener
Inventor: SCHMITZ CHRISTOPH JOHANN
IPC: A61F13/62
Filed: 1995-12-13
Abstract: An absorbent article (20) is comprised of two hook-type fastening members (58) and a loop-type member (49) for mechanically engaging with the hook-type members (58). The landing member (49) comprises a section of the backsheet (30, 31) such that a landing member (49) of low bulk is obtained which is easily manufactured and which can be elastically contracted and extended.
Patent CA-2206633-A1 (CA)
Title: Internal ultrasonic tip amplifier
Inventor: VAITEKUNAS JEFFREY J
IPC: A61B17/34
Filed: 1997-05-30
Abstract: An ultrasonic energy amplifier. The amplifier comprises a delivery horn having a solid proximal portion and a hollow distal portion. The hollow distal portion has substantially less cross-sectional area than the solid proximal portion.      Ultrasonic energy is transmitted sequentially through the proximal and distal portions and its velocity is amplified because of the lower cross-sectional area of the distal portion.
Patent CA-2206745-A1 (CA)
Title: Compact thermoelectric refrigeration drive assembly
Inventor: POLKINGHORNE JOHN D
IPC: H01L35/30
Filed: 1997-06-02
Abstract: A compact thermoelectric refrigeration drive assembly comprises at least one thermoelectric heat transfer device (Peltier Effect device) whose active surfaces are in contact with a respective one of a collector member and a transfer member. When operating, a dc current is applied to the heat transfer device to transfer heat from the collector member to the transfer member. This results in the collector member, which is intended to be located in an insulated chamber, being cooled and the transfer member, which is spaced away from the collector member, being heated. Waste heat is removed from the transfer member via a closed looped fluid cooling system, the transfer member forming at least a portion of one side of a vessel for the cooling fluid and thereby transferring heat to the fluid. The construction and design of the assembly advantageously results in a compact refrigerator drive assembly which can be employed in a variety of environments.
Patent CA-2213114-A1 (CA)
Inventor: VAILLANCOURT WILF
IPC: E01H4/02
Filed: 1997-10-07
Abstract: This invention relates to a method of resurfacing an ice surface to reduce wear on the ice surface and to reduce friction between the ice and an object gliding on the ice surface. The steps comprise mixing an effective amount of lubricant with water, coating the ice surface with the mixture, and allowing the mixture to freeze to form a new ice surface. In particular, the lubricant is derived from silicone. In the preferred embodiment, the lubricant is a composition derived from Fluftone S-90 by Thomson Research Associates, of Granby, Quebec, Canada. In the preferred embodiment, the ratio of water mixed with the lubricant is 30:1. This invention also provides for the use of the composition as an agent to reduce friction between an ice surface and an object gliding on the ice surface. In particular, an effective amount of the composition is mixed with water prior to applying the mixture to a surface upon which the ice surface is to form.
Patent CA-2213706-A1 (CA)
Title: Novel quinuclidine derivative having tricyclic hetereo condensed ring
Inventor: MORITANI HIROSHI
IPC: C07D453/02
Filed: 1996-03-01
Abstract: Novel quinuclidine derivatives represented by general formula (I) and useful as a cholesterol-lowering agent having a potent activity of inhibiting squalene synthase without any side effect, pharmaceutically acceptable salts thereof, hydrates thereof or solvates thereof. In said formula, R1 represents hydrogen, halogeno or lower alkyl; R2 represents hydrogen, hydroxy or lower alkoxy; <u>---</u> represents a single bond or a double bond, provided that R2 is absent when <u>---</u> is a double bond; X and Y are the same or different and each represents a bond, oxygen (-O-), carbonyl (-CO-), -S(O)p- or -NR3-, wherein p is 0, 1 or 2; and R3 represents hydrogen or optionally substituted lower alkyl; and A represents saturated or unsaturated lower alkylene, -(CH2)mZ(CH2)n- or -(CH2)mZ(CH2)nCR4=, wherein Z represents oxygen (-O-), -S(O)q-, carbonyl (-CO-) or -NR5-; R4 represents hydrogen, halogeno or lower alkyl; R5 represents hydrogen or lower alkyl; m and n are the same or different and each represents an integer of 1 to 5, provided that m + n is an integer of 1 to 5; and q is 0, 1 or 2, provided that when one of X and Y is a bond, then A represents -(CH2)mZ(CH2)nCR4=.
Patent CA-2219046-A1 (CA)
Title: Extensions to distributed mac protocols with collision avoidance using rts/cts exchanges
Inventor: KERMANI PARVIZ
IPC: H04L69/14
Filed: 1997-07-08
Abstract: In a communication network having a plurality of stations and a shared commoncommunications medium using a collision avoidance media access protocol for communication between the stations; in which medium access is granted to a pair of stations obtaining a successful reservation of the medium; the pair of stations comprising a requester station and a target station, wherein multiple stations may request access to the medium to send data, a method of establishing a reservation between stationscomprising: the requesting stations sending Request-to-Send (RTS) control frames and the receiving stations responding as appropriate with Clear-to-Send (CTS) control frames; wherein a requesting node aborts the reservation if the medium becomes active between its RTS transmission and the corresponding CTS response of its target station; performing arbitration by stations receiving the RTS transmission as follows: if a receiving station receives multiple Request-to-Send (RTS) control frames directed to the receiving station during a contention period, the receiving station responds to the last RTS control frame received by transmitting Clear-to-Send (CTS) control frames; if the receiving station receives multiple RTS control frames directed to different receiving stations during a contention period, the receiving station will respect the first RTS control frame received.
Patent CA-2225212-A1 (CA)
Inventor: SHEA JOHN JOSEPH
IPC: H01C17/28
Filed: 1997-12-18
Abstract: A novel current limiting PTC polymer device comprising a conductive polymer composition with electrodes attached thereto characterized by having a low contact resistance and a method of producing the same. The invention provides for the selective treatment of portions of the surface of the conductive polymer composition by at least one of plasma/corona etching and plasma sputtering/plasma spray to create a site for attachment of the electrodes resulting in a low contact resistance. The electrical devices of the invention are particularly useful in circuit protection applications.
Patent CA-2225537-A1 (CA)
Title: Hot dip coating apparatus and method
Inventor: UNOKI KENICHI
IPC: C23C2/24
Filed: 1997-12-22
Abstract: Disclosed is a hot dip coating apparatus and method, enables stable and continuous production of a coated steel strip having a high degree of uniformity of the coating quality over the breadth of the steel strip and clean coated surfaces free of deposition of dross.  The hot dip coating apparatus has a bottom slit through which a steel strip to be coated is introduced and pulled upward through the coating tank, and an electromagnetic sealing device which applies a magnetic field to the molten metal in the coating tank so as to hold the molten metal inside the tank.  The coating tank is provided at its top with an overflow dam for allowing the molten metal to overflow out of the coating tank.  The apparatus also has a molten metal supply system which produces a circulating flow of the molten metal through the coating tank.  The molten metal supply system has molten metal buffers which communicate with a molten metal supply passage and from which the molten metal is discharged towards the steel strip.
Patent CA-2225712-A1 (CA)
Title: Analogues de la progesterone pour supprimer la resistance multiple aux anti-cancereux
Inventor: TALEBIAN ABDEL H
IPC: C07J41/00
Filed: 1996-06-24
Abstract: Cette invention concerne de nouveaux dérivés de progestérone, leurs compositions pharmaceutiques et les méthodes de traitement dans lesquelles on utilise ces dérivés. L'invention concerne notamment les dérivés substitués en C7 de la série du pregnène. Cette invention concerne les méthodes de traitement de tumeurs à résistance multiple aux anticancéreux, et plus particulièrement dans le cas de tumeurs au sein, avec de nouveaux analogues de progestérone substitués en C7.
Patent CA-2226016-A1 (CA)
Title: Proximity sensor
Inventor: PETER WALTER H
IPC: G01S13/04
Filed: 1996-06-21
Abstract: An improved capacitive sensor for detecting the presence of objects in a sensing region. The sensor is a multilayer structure with alternating layers of conductive and insulating materials. The sensor structure has three electrodes; a touch plate (25), a guard layer (15), and a ground plane (5), each of which are separated from each other by insulating layers (20, 10). The sensor is operated by detection electronic circuitry which function in either a self excited mode or an externally excited mode. This sensor is capable of detecting objects in a sensing region several feet away from the sensing surface and is particularly suitable for automobile applications, such as detecting potentially jamming objects in power (auto-closing) windows, doors, and the like.
Patent CA-2228232-A1 (CA)
Inventor: SHIVELY RICHARD ROBERT
IPC: H04W8/24
Filed: 1998-01-30
Abstract: The present invention solves the current problem of allowing ad-hoc(manual) voice response by a user to a page received by a paging device. In one aspect of the invention, a paging device includes a digital signal processor for receiving and compressing a voice response to a page prior to transmission back to the paging party. In further aspects of the invention, the speech is first recorded and compressed and then transmitted to a wireless base station for subsequent transmission to the calling party.
Patent CA-2231086-A1 (CA)
Title: Input device for improving man-machine interface
Inventor: OISHI MASATOSHI
IPC: G06F3/0338
Filed: 1998-03-03
Abstract: An input device is provided with a lever and movement-transmission/feedback mechanisms. Each movement-transmission/feedback mechanism includes two fluid-containing chambers; a pipe that connects the chambers; a link that links the lever and the chambers; a control data generation means for monitoring the movement of the link and converting the movement into electrical signals; a transmission circuit for transmitting the signals to a host device; a restriction means for controlling the fluid-flow status of the pipe; and a receiver circuit for driving the restriction means. This input device provides a more natural and responsive feeling of control when operating a host device to which the device is connected.
Patent CA-2232083-A1 (CA)
Inventor: FINN SHANE DARREN
IPC: G01F15/02
Filed: 1996-09-13
Abstract: A method of flow estimation during CPAP treatment is disclosed and involves measuring turbine (32) speed by means of the motor's Hall-effect sensors (80). The equivalent pressure, P est, that would be developed by the turbine (32) for that measured speed if the flow were zero is estimated using a predetermined mathematical function. Coincidentally with the speed measurement and pressure estimation, the delivery tube pressure, P act, is measured by the pressure transducer (42), and from P act together with P est, the difference between the two pressures is calculated, representing an estimation of flow, f est. The flow estimation value can be linearised by the square root device (86), and then filteredby the combination of low pass and high pass filters (90, 92) to derive a filtered flow estimate value, that has the non-respiratory components removed. A method of flow compensation of flow-induced pressure swings also is disclosed.
Patent CA-2233545-A1 (CA)
Inventor: SADURAL SUSIE ADLAWAN
IPC: A23L27/60
Filed: 1996-10-23
Abstract: The present invention is directed to producing reduced fat food products with improved flavor. The term "reduced fat food product" as used herein is meant to include both those food products which qualify for being labeled fat free (less than 0.5 grams of fat per serving) and those food products which qualify for being labeled low fat (less than 1.68 grams of fat per ounce). In the method of the invention, an initial reduced fat food product is provided. The initial reduced fat food product has a fat content below that required for a fat free food product or a low fat food product. The initial reduced fat food product is blended with a high fat emulsion counterpart of the reduced fat food product to provide a final reduced fat food product with improved flavor. The high fat emulsion counterpart is added to the initial reduced fat food product at levels such that the final reduced fat food product still qualifies to be labeled either a fat free food product or a low fat food product.
Patent CA-2234288-A1 (CA)
Title: Dispositif de tirage d'un cable de traction dans une canalisation souterraine
Inventor: PLUMETTAZ GERARD
IPC: F16L1/06
Filed: 1998-03-20
Abstract: Le dispositif de tirage d'un câble (13) dans une canalisation souterraine (21 ) est constitué notamment d'un châssis (10) comportant un étrier de fixation (18) d'une poutre (3) munie à son extrémité d'une poulie de renvoi (30). De par la conformation de l'étrier de fixation (18), les efforts de traction sont reportés entièrement sur la poutre et le châssis, faisant que les moyens d'amarrage au sol (11 ) du dispositif peuvent être minimisés. Une telle construction permet facilement une mis en biais de la poutre lors d'un excentrage de la conduite. Le dispositif peut aussi facilement être introduit à l'intérieur d'une chambre de câbles pour opérer.