baber/WOPTO huggingface dataset:
Patent CA-2129561-C (CA)
Inventor: CONDIT DAVID A
IPC: G01N31/00
Filed: 1994-08-05
Granted: 2002-02-26
Abstract: A method and apparatus for testing refrigerant of one type for contamination by refrigerant of another type as would be the case if an air conditioning or refrigeration system charged with a non-chlorofluorocarbon refrigerant received a replenishment charge of a chlorofluorocarbon refrigerant. A sample of the suspected refrigerant mix is exposed to a re-agent that will decompose the contaminant refrigerant but not the refrigerant that is proper for the system. The sample is then tested for a product of the decomposition. If the prod-uct is present, then one can conclude that the contaminant refrigerant is present.
Patent CA-2129564-C (CA)
Title: 2-.beta.-alkenyl penam sulfones as .beta.-lactamase inhibitors
Inventor: HUBSCHWERLEN CHRISTIAN
IPC: A61P31/04
Filed: 1994-08-05
Granted: 2006-07-25
Abstract: The present invention is concerned with penam derivatives, in particular it is concerned with 2.beta.-alkenyl-penam derivatives of the general formula   wherein one of R1 and R2 signifies -COR4, -CN, -CH2R5, halogen, -CH=CHR6 or Q and the other signifies hydrogen or lower alkyl or both together signify a .gamma.-lactam ring, R3 signifies hydrogen, lower alkyl, aryl-alkyl, allyl or a residue which is cleavable in vivo, R4 signifies hydrogen, lower alkyl, lower alkoxy, benzyloxy, amino, lower alkylamino or lower alkyl-lower alkoxyamino, R5 signifies hydroxy, -OCONHR7, -OCONH2 or a five- or six-membered hetero-aromatic ring which contains N,S and/or O and which is linked via a nitrogen atom, R6 signifies -CN or CHO, R7 signifies -COCH2Cl, Q signifies a five- or six-membered hetero-aromatic ring which contains N, S and/or O and n signifies 0, 1 or 2, as well as pharmaceutically compatible salts of these compounds.        These compounds are good .beta.-lactamase inhibitors. They can be used for the prevention or treatment of bacterial infections, optionally together with a .beta.-lactam antibiotic.
Patent CA-2134957-C (CA)
Title: Transformer oil gas extractor
Inventor: SLEMON CHARLES S
IPC: G01N33/28
Filed: 1994-11-02
Granted: 1999-03-23
Abstract: A device is disclosed for extracting dissolved gases from oil in an electrical transformer and for analyzing those gases using a plurality of gas sensors,  a signal processor, and a neural network.
Patent CA-2136417-C (CA)
Title: Method for melting copper
Inventor: WILLIAMS JIM D
IPC: C22B15/00
Filed: 1992-05-22
Granted: 1999-03-30
Abstract: A method is disclosed for melting copper without incorporating unwanted oxygen and/or hydrogen into the copper by effectively controlling the burners used to melt the copper within desired fuel/air ratio operating limits by employing a special fuel/air mixture sampling and control system.
Patent CA-2137943-C (CA)
Title: Ratio feed detergent controller and method with automatic feed rate learning capability
Inventor: CHAN WAI YIN CEDRIC
IPC: G05D11/13
Filed: 1994-12-13
Granted: 1998-04-28
Abstract: A detergent dispenser controller for use with a washing device, such as a dishwasher, that measures detergent concentration in a water tank by measuring the conductivity of the detergent solution in the water tank. The detergent controller automatically learns the feed rate of the detergent dispenser used, regardless of the type of detergent dispenser being used. For each detergent feed cycle, the controller computes a Feed Factor equal to the amount of detergent feed on time required for each unit increase in the detergent concentration, which is the inverse of the detergent feed rate. The controller stores the computed Feed Factor for the last N feed cycles in a non-volatile memory, and computes a running average of the N feed factors stored in the non-volatile memory. Whenever the detergent dispenser is powered on, it determines the difference between the measured wash tank detergent concentration and a specified detergent concentration set point value. The computed average feed factor and the difference between the set point and the current detergent concentration are multiplied to compute a detergent feed on time. The detergent dispenser is then turned on for the computed feed on time, and after a suitable subsequent mixing period, the change in detergent concentration during the last feed cycle is determined and a new Feed Factor is computed and stored. The detergent concentration is preferably measured using logarithmic measurement units, and separate Feed Factors may be computed and used for at least two detergent concentration ranges.
Patent CA-2146788-C (CA)
Title: Animal fluid applicator
Inventor: GROSS ANDREW M
IPC: A01K13/00
Filed: 1995-04-11
Granted: 2002-12-17
Abstract: A free-standing animal fluid applicator comprising a frame constructed from pipe having two spaced upright members.  Two mechanism support hanging arms are pivotally attached to upper end portions of the upright members.  The heights of the hanging arms are adjustable to the heights of differently sized animals.  A vessel extends between the hanging arms.  The bottom of the vessel has two downwardly directed valves.  Below the valves is an open trough having a cotton material hanging therefrom.  When an animal passes through the cotton portion, it pulls a chain which is guided to pull down on an exterior end portion of a rocker arm.          The interior end portion of the rocker arm lifts one end of a valve closure member.  The other end of the valve closure member moves downwardly opening the valves.  The fluid then runs down through the valves, into the trough; it then soaks the cotton which rubs the animal applying fluid thereto.
Patent CA-2150247-C (CA)
Title: Hydrostatic nut and lead screw assembly, and method of forming said nut
Inventor: PFLAGER WILLIAM W
IPC: F16H25/24
Filed: 1994-07-21
Granted: 1999-10-12
Abstract: A method of forming a hydrostatic nut (36) that cooperates with a lead screw (38) for translating a cam grinder wheel head (26). An externally lead screw master (66) is inserted into an internally threaded cylindrical mold (50). Beads of wax or tape (76, 78) are adhered to the external threads on the standard (66) while the rest of the standard (66) is treated with a release coating to define a continuous cavity (86, 88) between the internal threads of the nut (36) and the external threads on the standard (66). An epoxy resin is introduced into the cavity. The standard (66) is then removed and the wax or tape (76, 78) is removed to leave oppositely directed helical channels (86, 88) in the polymer. The helical channels are pressurized with a thin fluid film that prevents metal to metal contact.
Patent CA-2150687-C (CA)
Title: Frozen confections
Inventor: BEE RODNEY DAVID
IPC: A23G9/20
Filed: 1993-11-25
Granted: 2004-09-28
Abstract: Stable gas cells having D3,2 average particle size below 20ym are used in ice confections to provide creaminess, whiteness and flavour enhancement.
Patent CA-2150869-C (CA)
Title: Cosmetic sunscreens and their uses
Inventor: HANSENNE ISABELLE
IPC: A61K8/00
Filed: 1995-06-02
Granted: 2001-08-14
Abstract: Cosmetic compsns. for topical use contain a solubilised UV-B filter which is 2,4,6-tris(4-(2-ethylhexyloxycarbonyl)anilino)-1,3,5-triazine (I), and a solubilising UV filter (II) comprising homomenthyl salicylate (IIa) and/or octyl salicylate (IIb). Also claimed is a cosmetic treatment process for protecting the skin and/or hair against UV radiation, esp. sunlight, comprising application of a compsn. as above.
Patent CA-2151758-C (CA)
Title: Sanitary napkin
Inventor: WADA ICHIRO
IPC: A61F13/514
Filed: 1995-06-14
Granted: 1999-05-04
Abstract: A sanitary napkin comprising a pair of longitudinally stretchable barrier flaps provided on either side thereof, said napkin being folded in three layers by folding back longitudinally opposite end sections thereof along lines extending  transversely  thereof  as  well  as  transversely extending across said barrier flaps, and said napkin being packed in an envelope.
Patent CA-2152781-C (CA)
Title: Digital demodulator with frequency and timing control
Inventor: PETRANOVICH JAMES E
IPC: H04L27/22
Filed: 1993-12-30
Granted: 2004-02-24
Abstract: A PSK signal is received and digitized in a limiter (26) to substantially remove the signal's amplitude characteristics. A phase detector (44) receives the digital data and, based upon transitions in the data between high and low states, provides phase estimates. The phase estimates are converted by a data decoder (50) into binary data representing the symbols transmitted to form the PSK signal. A number of overlapping windows of digital data are used to determine phase estimates.  A unique word detector (52) receives binary data from the data decoder (50) and, using a correlation technique, identifies one set of windows which substantially maximizes synchronization of the demodulator with the received PSK signal. After the synchronizing window has been identified, an automatic frequency controller (46) monitors any frequency drift of the PSK signal and corrects the phase estimates.
Patent CA-2153023-C (CA)
Title: Recovery of tube cleaners
Inventor: ECHOLS JAMES F
IPC: F28G1/12
Filed: 1995-06-29
Granted: 2006-08-15
Abstract: Apparatus and method are provided for removing hard-body cleaners from cooling water downstream of a heat exchanger. The bodies are removed from the cooling water by a screen placed such that water flowing in and out of a container which is open to the atmosphere flows through the screen. Bar rake screens, traveling screens or other stationary forms of screens may be used. The cleaning bodies are removed from the screen by mechanical, gravity or fluid flow forces, and then may be recirculated to a heat exchanger.
Patent CA-2159006-C (CA)
Inventor: MERCHAOUI MED HEDI
IPC: C10M175/02
Filed: 1994-03-21
Granted: 2005-06-21
Abstract: Process and plant for the regeneration of spent oils comprising: a tank (2) for the storage of spent oils; preheating means (3) for the preheating of spent oils; means (4) for the storage of a strong base; means (5) for mixing the strong base in a predetermined proportion with the spent oils; waste elimination means (10, 14).
Patent CA-2159406-C (CA)
Inventor: BURGER WILLIBALD
IPC: C09K8/26
Filed: 1995-09-28
Granted: 1999-08-17
Abstract: In the process of the present invention, crude oil is extracted from crude oil-containing deposits with the aid of an emulsion containing the components (A)  100 parts by weight of organopolysiloxane (B)  10 to 100 parts by weight of surfactant and (C) water.
Patent CA-2160573-C (CA)
Title: Fiber optic cable system including main and drop cables and associated fabrication method
Inventor: RAY CRAIG DWAYNE
IPC: G02B6/44
Filed: 1994-04-15
Granted: 2005-06-14
Abstract: A fiber optic cable system, such as a preterminated fiber cable, includes a main cable and one or more drop cables connected to the main cable at spaced apart locations along the main cable. The drop cable is spliced to the main cable using a splice closure including a fiber guide that secures spliced together end portions of the respective fibers in a longitudinally extending direction so that they are devoid of any slack coils of optical fibers. Accordingly the overall diameter of the splice closure is relatively small thereby permitting the cable system to be stored on a reel and to be readily placed within small diameter conduits. The splice closure includes a heat recoverable housing surrounding the fiber guide. Cable sheath end portions are scaled by melting C-shaped bodies of heat flowable material positioned adjacent cable sheath end portions.
Patent CA-2161267-C (CA)
Title: Appareil de distribution de liquide
Inventor: TARDIF JOHN
IPC: A62C2/08
Filed: 1995-10-24
Granted: 1997-02-18
Abstract: Un appareil particulièrement utile pour rafraîchir un pompier à même une lance d'arrosage, comprenant un embout 38 courbé qu'un pompier peut appliquer contre le jet de la lance. Un tube flexible 32 relié à l'embout 38 courbé canalise l'eau jusqu'à un T de jonction 30 d'accouplement à un anneau 26 placé dans la région du cou 104 et de la bouche d'un pompier. L'anneau 26 a un nombre d'orifices 34 dirigés contre le cou 104 du pompier. Le T de jonction comprend une ouverture de désaltération 36 à fermeture laissant passer un jet dirigé contre la bouche du pompier. L'embout 38 courbé comprend une poignée-conduit 50 à angle de 135.degree. avec une patte courte 56 ayant une face externe biseautée qui capte l'eau de la lance. L'aire de l'ouverture de désaltération 36 est au moins égale à la somme des aires des orifices 34 et peut être égale au diamètre du tube flexible 32. L'ouverture de désaltération 36 comprend un moyen de fermeture destiné à permettre ainsi uniquement un effet de douche.
Patent CA-2165856-C (CA)
Title: Number portability with database query
Inventor: CARKNER R WILLIAM
IPC: H04Q3/66
Filed: 1995-12-21
Granted: 2001-09-18
Abstract: A method of providing number portability for the treatment of calls from a calling party to a specific number of a called party is disclosed. An Initial Address Message (IAM) containing the calling and called party's numbers to enable said call to reach said terminating office is forwarded from an originating office to a terminating office. Once the IAM is received at the terminating office, a determination of whether the call is directed to a portable number is made. If the call is directed to a portable number, a release message containing an indication that the called party number is a portable number is forwarded from the terminating office to the originating office. Once the release message is received at the originating office, a TCAP query is launched from the originating office to an SCP if said release message contains an indication that the called party number is a portable number. At the SCP, the called party number is translated to obtain new routing information. A new IAM is then sent from the originating office to a terminating office associated with the new routing information.
Patent CA-2167916-C (CA)
Title: Assured-integrity monitored-extrapolation navigation apparatus
Inventor: DIESEL JOHN W
IPC: G01C21/20
Filed: 1995-06-07
Granted: 1998-04-14
Abstract: The assured-integrity monitored-extrapolation (AIME) navigation apparatus (1) selectively utilizes measurements provided by ancillary sources at periodic intervals in determining the state of the platform on which the apparatus is mounted.  The measurements have attributes which are measures of quality, quality being a measure of the usefulness of the measurement in accurately estimating the state of a platform. The AIME apparatus (1) makes its selection of measurements for state determination on the basis of estimates of the values of these quality attributes.  The determination of the quality of a time sequence of measured values of a particular quantity requires an evaluation time for its accomplishment.  The AIME apparatus (1) therefore determines the platform's state in two phases.  It obtains highly-accurate determinations of the states of the platform at times prior to present time minus the evaluation time by using the quality measures available at these times and using only those measurements that are determined to be of high quality in the determination of state at these times.  The platform state at present time is then obtained by extrapolation of the highly-accurate state at time minus the evaluation time using measurements whose quality is more uncertain.  The ancillary sources consist of a GPS receiver (3) and an inertial reference system (5).
Patent CA-2168338-C (CA)
Title: Condensing and collecting optical system using an ellipsoidal reflector
Inventor: STROBL KARLHEINZ
IPC: F21Y101/00
Filed: 1994-07-07
Granted: 2001-05-08
Abstract: An off-axis optical system for collecting and con-densing electromagnetic radiation utilizes an ellipsoidal reflector configured to minimize the effects of magni-fication and optical aberrations.  An ellipsoidal reflec-tor (M1, P) having primary and secondary focal points (F1, F2) along the major axis (8) is illuminated by a light source (S) and subtended by an acceptance cone (16) of the target (T). In one embodiment, a single ellipsoidal reflector is configured with its major axis non-coincident with its geometric optical axis (12) and with the optical axis (14) of the target at an angle greater than zero degrees so as to reduce substantially the distance at which a focused image is formed and to achieve an average magnification near unity thereby maintaining the brightness of the source at the target. The radiant flux at the location of the target is increased by incorporating a retro-reflector (M2) of toroidal or spherical design.
Patent CA-2178799-C (CA)
Inventor: CLAREMBEAU MICHEL
IPC: C07C11/02
Filed: 1996-06-11
Granted: 2008-08-12
Abstract: A monoolefin oligomerization process which gives high yields of dimer and trimer at high monoolefin conversions in a single stage reaction is described The process involves contacting a C6-20 vinyl olefin with a catalyst comprising boron trifluoride and from 0 075 to 0.5 mol%, based on the total quantity of monoolefin being used, of an alcohol catalyst promoter The oligomerization is performed at a temperature below about 40°C and under a pressurized atmosphere of boron trifluoride in the range of 2 to 4 bars gauge until the monoolefin conversion is at least 95% and the combined total of dimer and trimer in the liquid reaction mixture is at least 60% by weight
Patent CA-2192141-C (CA)
Title: Waterfast ink composition for printers
Inventor: AUSLANDER JUDITH D
IPC: B41J2/01
Filed: 1996-12-05
Granted: 2007-09-18
Abstract: Liquid inks are disclosed that fulfill United States Postal Service requirements for automation compatibility, while being able to be used in an ink jet printer. The inks of this invention may be read by current United States Postal Service equipment. The inks are waterfast, having improved print quality. The formulations are based on water cosolvent solutions of soluble fluorescent or non fluorescent toners to which toning dyes and non ionic surfactants are added.
Patent CA-2193523-C (CA)
Title: Joint filete pour tubes metalliques avec revetement interieur
Inventor: NOEL THIERRY
IPC: F16L58/18
Filed: 1996-12-19
Granted: 2004-08-24
Abstract: L'invention concerne les joints filetés pour tubes équipés d'une couche destinée notamment à protéger les tubes et les joints contre la corrosion ou à améliorer les conditions de circulation des fluides. Ce joint comporte deux composants tubulaires filetés (3, 4) munis chacun d'une surface annulaire (16, 17) radiale. La paroi intérieure (14, 15) des composants et les surfaces annulaires sont revêtues d'une couche (22, 23). La forme des surfaces annulaires (16, 17) est telle que à l'état vissé ces surfaces sont partiellement en contact d'appui sur leur portion extérieure (16.1, 17.1), leur portion intérieure créant une zone d'ouverture progressive (24) au moins en partie remplie (L) par les couches des deux composants. Ce joint concerne en particulier l'exploitation des gisements de pétrole et de gaz en présence de fluides corrosifs.
Patent CA-2200665-C (CA)
Inventor: RIDLEY RODNEY K
IPC: F04B9/125
Filed: 1997-03-21
Granted: 2001-07-31
Abstract: An apparatus and method for producing reservoir fluids through a wellbore wherein the reservoir fluids enter the wellbore and separate into a liquid and a gas phase at a gas pressure. The apparatus includes a first pump for pumping the liquid phase towards the surface and a pump drive for driving the first pump. The pump drive is powered using the gas pressure in the wellbore. An intake communicates with the gas phase in the wellbore to direct it to the pump drive to power the pump drive. An exhaust directs the gas phase from the pump drive towards the surface. The method includes the steps of intaking the gas phase into the pump drive, powering the pump drive using the gas pressure of the gas phase, pumping the liquid phase from the wellbore towards the surface by the first pump and exhausting the gas phase from the pump drive towards the surface.
Patent CA-2202672-C (CA)
Inventor: PADULA SANTO A
IPC: G01L5/22
Filed: 1997-04-14
Granted: 2002-09-24
Abstract: A torque transducer has a circumferentially sleeve press fitted on the user-tiltable portion of a vehicle steering shaft and disposed axially intermediate the shaft support bearings. A stationary pickup coil is mounted over the sleeve and located with respect to the sleeve by a second pair of bearings. In an alternate embodiment, two circumferentially magnetized, axially spaced sleeves are utilized.
Patent CA-2203666-C (CA)
Inventor: DYKE COLIN
IPC: E01H5/08
Filed: 1995-10-26
Granted: 2000-12-19
Abstract: A universal powerhead apparatus (12) which is securable to a frame portion (14) of a land vehicle (10), pump or other tool to replace an existing internal combustion engine of the device without requiring significant modification to the frame portion of the device. The powerhead apparatus (12) includes a universal mounting plate (16) and a main body portion (18) which is secured to a portion of the motor. The universal mounting plate (16) has a footprint similar to that of a specific make and displacement of internal combustion engine which the apparatus is intended to replace. The apparatus (12) can be secured directly to a frame portion of the land vehicle (10), tool or pump in either a horizontal or vertical orientation to thus enable it to be used as a power source for vehicles requiring a horizontally disposed output shaft as well as vehicles requiring a vertically disposed output shaft.
Patent CA-2206208-C (CA)
Inventor: NILSON BILLY
IPC: A61M16/16
Filed: 1995-11-30
Granted: 2007-08-07
Abstract: A moisture-heat exchange arrangement which is intended for connection to a patient to humidify and heat the air inhaled by the patient, wherein the arrangement includes a moisture-heat exchanger unit (5) and a humidifier means (11, 12) that connects with the unit (5) to increase the humidity of the inhalation air. The humidifying means includes a casing (3) which is connected with the moisture-heat exchanger unit (5) and which has a first opening (9) that communicates with the moisture-heat exchanger unit and an opposing opening (6) that communicates with the patient. The inner surface of the casing has provided thereon a water-absorbing and/or water-vapour permeable material (11) which delivers moisture to the air inhaled by the patient.
Patent CA-2208396-C (CA)
Inventor: KISE KAZUHIKO
IPC: E04F19/02
Filed: 1997-06-19
Granted: 2006-02-28
Abstract: This foundation material 1 comprises a substrate 2 having a sheet form, and a surface modifying layer on at least front surface of said substrate comprising 2-30 parts by weight of a film formation aiding agent for every 100 parts by weight of a resin having a hydrophilic functional group. In addition, this foundation material 1 is manufactured by forming substrate 2 by extrusion molding a synthetic resin, laminating at least a front surface of substrate 2 with a surface modifying agent comprising 2-30 parts by weight of a film formation aiding agent for every 100 parts by weight of a resin having a hydrophilic functional group, and drying the thus formed laminated substrate.
Patent CA-2209881-C (CA)
Inventor: DOUGHERTY ROBERT P
IPC: B64C1/40
Filed: 1997-07-04
Granted: 2004-09-21
Abstract: Noise attenuating linings for a turbofan engine inlet are installed around the upper crown area and/or around the lower lip. The acoustical lining at the upper crown area attenuates those fan noise emissions which are normally reflected from the crown area downward toward the ground. The acoustical lining at the lower inlet lip attenuates those fan noise emissions which travel along the inner surface of the lip and are diffracted around the lower lip downward toward the ground.