baber/WOPTO huggingface dataset:
Patent CA-2126900-A1 (CA)
Title: Transition collar and spacing device for use in road construction
Inventor: TOMPKINS KENNETH
IPC: E02D29/14
Filed: 1994-06-28
Abstract: A transition collar for use in road construction comprises  an  annular  collar  member  made  of  elastomeric materials  such as  rubber.  It has  a generally planar top surface and a central opening sized to accommodate a rigid frame structure having an access opening formed therein.  The collar member has a vertical outer wall that faces the road material,  which outer wall has  a number of horizontally extending, spaced apart ridges formed thereon.  These ridges assist in securing the collar in a road bed. Preferably the uppermost ridge is spaced below the top surface of the collar.          The collar can have a number of small bumps distributed over its top surface to improve traction for vehicles.  Preferably these bumps have  sloping sidewalls extending about their periphery.  A cushioning device is used to adjust the position of the frame structure and comprises a flat,  elastomeric member with exterior dimensions corresponding to those of the frame  structure.    This  cushioning device  preferably  has shallow indentations on one of its two major surfaces.
Patent CA-2126977-A1 (CA)
Title: Hybrid aircraft
Inventor: CAUFMAN ROBERT L
IPC: B64B1/00
Filed: 1992-01-10
Abstract: A hybrid aircraft with a large non-rotating balloon chamber (1) containing a lighter-than-air gas which provides a large static lifting force having a magnitude substantially greater than the weight of the aircraft. It comprises a support structure (20) which is substantially longer in length than in width and is encased within the balloon chamber (1). The support structure system has two ends (22) which protrude from the balloon chamber at opposite sides along the center line of the balloon chamber. A rotatable rotor frame (15) is suspended to the ends of the support structure about the non-rotating balloon chamber. The aircraft has a plurality of blade airfoils (4) connected to the rotor frame and oriented radially relative to the balloon chamber. The angle of attack of each blade can be varied. A thrust means is mounted at or near the outboard end of the blade airfoils. A wing airfoil perpendicularly connected to the end of each blade airfoil at the same end as the thrust means. The angle of attack of each wing airfoil can be varied. The aircraft also has a cab, a load line, and an anti-torque device as required.
Patent CA-2129051-A1 (CA)
Inventor: HARVEY WILSON
IPC: A61F2/06
Filed: 1994-07-28
Abstract: Absorbable composite materials are described that comprise a collagen matrix reinforced with a layer of a biaabsorbable polymer. A chemotherapeutic agent is dispersed in the composite material. The layer of bioabsorbable polymer is preferably a woven, nonwoven or knitted mesh layer of a synthetic bioabsorbable polymer such as polylactic/polyglycolic acid copolymer, or oxidised regenerated cellulose. The chemotherapeutic agent may be an antibiotic, an anaesthetic, an antiseptic or an anti-inflammatory. Strips of the composite material are inserted into the periodontal pocket, where they are retained in place and provide effective sustained release of the chemotherapeutic agent over an extended period.
Patent CA-2131706-A1 (CA)
Title: Biological in-situ electrical current generating apparatus
Inventor: ANDERSEN ERIK
IPC: A61N1/20
Filed: 1993-03-03
Abstract: An apparatus (20) for the in situ generation of an electrical current in a biological environment characterized by including an electrolytic fluid. The apparatus comprises first (21) and second (23) electrodes of differing electrochemical potentials separated by an insulator (22). The apparatus is adapted to be implanted in the environment. The presence of the electrolytic fluid and formation of a current path by hyperplastic cells bridging the electrodes enables electrolysis to occur and a direct current to pass through the current path to impede hyperplastic cell growth.
Patent CA-2133097-A1 (CA)
Title: Immunoassays employing generic anti-hapten antibodies and materials for use therein
Inventor: YUE VINCENT T
IPC: G01N33/58
Filed: 1993-03-29
Abstract: The present invention relates to immunoassay methods for detecting and measuring the amount of an analyte in a sample by means of generic anti-hapten antibodies. Also disclosed are multi-analyte immunoassay methods. Reagents, devices, and kits using the anti-hapten antibodies are also disclosed. The present invention also relates to dyed erythrocytes, preferably fixed, which are coated with antibodies. Also disclosed is the use of these dyed erythrocytes in agglutination assays to detect and measure the presence of an analyte in a sample. The analyte can be a hapten, an antigen, or an antibody. Also included are agglutination assays, compositions and kits using these dyed and coated erythrocytes.
Patent CA-2135433-A1 (CA)
Inventor: LANGE ANTTI A I
IPC: G06F17/17
Filed: 1994-11-14
Abstract: The invention is based on the use of the principles of Lange's Fast Kalman Filtering (FKFTM) for large process control, prediction or warning systems where other computing methods are either too slow or fail because of truncation errors. The invented method makes it possible to exploit the FKF method for dynamic multiparameter systems that are governed by partial differential equations. A notebook PC of Fig. 1 works as a supernavigator through exploiting the FKF method. The receiver concept comprises an integrated sensor, remote sensing, data processing and transmission system (3) of, say, a national environmental service and an off-the-shelf GPS receiver. The database unit (2) contains control (4) and performance information on the subsystems and geographical maps. The logic unit (1) yields real-time 3-dimensional visualizations on what is going on (5). Dependable accuracy information is provided when the stability conditions of the optimal Kalman filtering are be met by the overall system.
Patent CA-2135754-A1 (CA)
Title: Device for volumetric dosing of products
Inventor: CREDLE WILLIAM S JR
IPC: B67D1/10
Filed: 1993-06-02
Abstract: A post-mix beverage dispensing valve for dispensing syrup and soda in the desired ratio without the need for flow controls for periodic adjustment of the ratio. The valve in-cludes a flow meter (30) for measuring the flow rate of the so-da and a pump (10) for dispensing metered quantities of sy-rup. The pump (10) preferably includes a chamber (14) within a ceramic sleeve (12) having first and second distal ends and a double-acting ceramic piston (16) mounted for reciprocat-ing sliding movement within the sleeve (12). A solenoid valve control system including a pair of solenoid valves (SCA, SCB) controls syrup flow through the pump (10), in response to signals from the flow meter (30). The valve preferably also includes a syrup flow regulator. The valve can include a single externally manually adjustable flow rate control to vary the dispensing flow rate to any desired value.
Patent CA-2138766-A1 (CA)
Inventor: UMEMOTO TERUO
IPC: H01M4/06
Filed: 1994-04-20
Abstract: The present invention relates to a process for generating an energy such as electricity, a device therefor and a compound having a N-F bond and generating an energy such as electricity and a battery using the compound, and can provide a process for generating energy such as electricity by the use of materials for an active material for a battery, an electrolyte, or the like, which is handled easily and is superior in environmental acceptability.
Patent CA-2142715-A1 (CA)
Inventor: DETER CHRISTHARD
IPC: G02B26/10
Filed: 1994-07-19
Abstract: A projection system for projecting a video image formed of picture elements on a screen (54) has at least one light source (10: 20: 30) of variable intensity that emits a beam of light and a scanning device (44, 46) that scans the beam of light for lighting the picture elements on the screen (54). Transformation optics (50) with at least two stages are arranged between the scanning device (44, 46) and the screen (54), and corrected according to the theorem of the tangent to eliminate optical distortions. The transformation optics in turn have at least two optical stages.      The first optical stage generates an intermediate focal plane reproduced on the screen by the subsequent optical stage(s).
Patent CA-2142824-A1 (CA)
Title: Activated carbon-containing fibrids
Inventor: BAIR THOMAS I
IPC: D01F1/10
Filed: 1992-08-31
Abstract: Polymeric fibrids containing embedded activated carbon are useful as adsorbents.
Patent CA-2143256-A1 (CA)
Inventor: WEINBERGER GERALD J
IPC: H04Q3/66
Filed: 1995-02-23
Abstract: A method and system for updating a database that stores billing rate parameters for call rating devices associated with a calling station is disclosed.  The calling station calls at a predetermined date and time a rate provider, which includes billing rate parameters for a plurality of calling stations.  The call rating device transmits over the telephone network to the rate provider the phone number of the calling station, and the date and time of the last updated database.  The rate provider verifies that the billing rate parameters of the calling station should be updated, then transmits back over the telephone network to the calling station the updated database.  The rate provider also sends data as to the new date and time for the call rating device to place a call to the rate provider.
Patent CA-2144951-A1 (CA)
Title: Random Coding Cipher System and Method
Inventor: VOBACH ARNOLD A
IPC: H04L9/18
Filed: 1993-09-29
Abstract: In a random coding cipher system and method, a sender and receiver pair share a long string of random digits, the masking tape. To encrypt a plaintext message, the sender generates a random integer (using a pseudo-random number generator, RNG) or a pseudo-random integer (using a pseudo-random number generator, PRNG). This is the initializing integer. The sender then selects an integer formed from a subset of the digits of the initializing integer. This is the starting integer for the message. The method of formation of the starting integer (choice of position of the digits and their ordering, etc.) from the digits of the initializing integer is shared by sender and receiver. The starting integer determines a starting, or indexing, position in the masking tape for extraction of a sequence of blocks of digits, of common length, to be put in one-to-one correspondence with the characters of the plain-text alphabet used for communication. The integer blocks comprise the numerical synonyms for the plaintext alphabet characters.
Patent CA-2146445-A1 (CA)
Inventor: SAWAHASHI MAMORU
IPC: B62D25/08
Filed: 1994-08-04
Abstract: Un répéteur permet d'améliorer un effet de réception en diversité. Un signal, reçu d'une station de base, passe en parallèle par un premier chemin comportant un premier élément retardateur, et par un deuxième chemin dépourvu d'un tel élément, puis il est envoyé à une station mobile. Un signal, reçu de cette station mobile, passe en parallèle par un troisième chemin comportant un deuxième élément retardateur, et un quatrième chemin dépourvu d'un tel élément, puis il est envoyé à la station de base. Le retard propre aux éléments retardateurs est réglé de façon à dépasser un cycle de circuit électronique nécessaire pour un code de diffusion. En conséquence, une onde multiple pouvant être résolue est obligatoirement produite par un récepteur en diversité, dans lequel seule l'amplitude d'une composante d'onde désirée est estimée par rapport à chaque onde retardée. Cette amplitude permet de pondérer chaque composante d'onde retardée provenant d'un détecteur, et les signaux pondérés sont synthétisés et soumis à une décision relevant d'un code.
Patent CA-2154601-A1 (CA)
Title: Formulations containing coumarins and the use thereof in the pharmaceutical and cosmetic fields
Inventor: BOMBARDELLI EZIO
IPC: A61K36/82
Filed: 1995-07-25
Abstract: The present invention relates to the use of coumarins such as esculoside, esculetin, extracts containing them and mixtures thereof, in combination with dimeric and oligomeric proanthocyanidins, in topical formulations for the treatment of peripheral vasculopathies, including the complications of acute venous stasis, or of the unesthetisms related to capillary alterations, or to improve the cicatrization processes. These coumarins, alone or in combination with proanthocyanidins, are also useful in atopical dermatitis and in the treatment of the haematomas.
Patent CA-2156239-A1 (CA)
Title: Electrorheological fluids of polar solids and organic semiconductors
Inventor: HAVELKA KATHLEEN O
IPC: C10N20/06
Filed: 1995-08-16
Abstract: An electrorheological fluid of a particulate phase and a continuous phase of a hydrophobic liquid medium, a certain dispersed particulate phase, and a lowmolecular weight polar material exhibits a broad effective temperature range. The dispersed particulate phase comprises a polar solid material which is capa-ble of exhibiting substantial electrorheological activity only in the presence of a low molecular weight polar material, and an organic semiconductor. The weight ratio of the polar solid material to the organic semiconductor is at least about 2:1.
Patent CA-2159028-A1 (CA)
Title: Microwave energized ion source for ion implantation
Inventor: TRUEIRA FRANK R
IPC: H01J37/317
Filed: 1995-09-25
Abstract: A microwave energized ion source apparatus is disclosed.  The ion source apparatus is supported by a support tube extending into a cavity defined by an ion source housing assembly and includes a dielectric plasma chamber, a pair of vaporizers, a microwave tuning and transmission assembly and a magnetic field generating assembly. The plasma chamber defines an interior region into which source material and ionizable gas are routed and includes a recessed portion.  The plasma chamber is overlied by a cap having an arc slit through which generated ions exit the chamber. The microwave tuning and transmission assembly, which feeds microwave energy to the plasma chamber in the TEM mode, includes a coaxial microwave energy transmission line center conductor. An enlarged end of the center conductor fits into the recessed portion of the plasma chamber and transmits microwave energy to source materials in the chamber.  The microwave center conductor extends through an evacuated portion of a coaxial tube surrounding the conductor.  A vacuum sealing window spaced apart from the microwave window is disposed in or adjacent to the coaxial tube and from the boundary between the evacuated coaxial tube and a non-evacuated region. The arc slit cap is secured to a plasma chamber housing surrounding the plasma chamber and is adapted to interfit with a clamping assembly secured to an end ofthe support tube such that the arc slit is precisely aligned with a predetermined ion beam line.  The microwave energy transmission line center conductor is coupled to a tuning center conductor which is slideably overlied by a pair of slug tuners. Moving the slug tuners along their paths of travel changes an impedance of the microwave energy input to the plasma chamber.
Patent CA-2159100-A1 (CA)
Title: Method and apparatus for process control
Inventor: REYNOLDS GERALD ALFRED JOHN
IPC: G11B7/26
Filed: 1994-04-05
Abstract: In order to investigate the develop-ment of a photoresist layer (2) on an optical master disk (I) by developing fluid (14), a transparent body (4, 35, 50) is brought into contact with the developing fluid (14). A light beam (6) is then incident on the op-tical master disk (I) from a source (5) and a diffracted beam (8) passes through the developing fluid (14) and the transparent body (4, 35, 50) to a detector (9). In this way the optical path of the diffracted beam (8) is stable. Preferably, the diffracted beam (8) is generated from the incident light beam (6) by reflection, and prefer-ably it is a first-order diffracted beam. It is also preferable that the incident light beam (6) is modulated. The development of the photoresist layer is then monitored by mon-itoring changes in the diffracted light beam (8) detected by the detector (9).
Patent CA-2159472-A1 (CA)
Title: Method for multistage bleaching of wood pulp
Inventor: SHACKFORD LEWIS DONALD
IPC: D21C9/153
Filed: 1994-04-19
Abstract: A pulp bleaching line has an initial stage (140) using gaseous bleaching reagent followed by its subsequent stages (70) without intervening washing or pumping steps.  The pulp is transported from the initial stage through a mixer (30) in which the pulp is heated and/or dosed with bleaching chemicals and through the subsequent stage by retained gas pressure developed in the initial stage. A portion of the retained gas may be separated and purged from the mixer through a pressure regulating device (90) to optimize pressure for processes which follow the mixer/heater.  This permits elimination of a washer and pump normally provided between the initial reactor and subsequent bleaching stage.
Patent CA-2159625-A1 (CA)
Inventor: PATEL HIRALAL V
IPC: F16J15/18
Filed: 1994-03-31
Abstract: A fitting body is pro vided with a lip that pro trudes radially from at least onc of the side walls of the seal groove in the sealing face toward the other side waU to form an underwt whereby an annular seal is trapped axially behind the lip to prevent the annular seal from falling out of the groovc. The lip is formed by forming the fitting body with a ledge that is integral with the fitting body and protrudes axially from the sealing face adjacent one of the side walls of the groove in the sealing face. The ledge is then flattened to form the lip and an annular seal such as an elastomeric O-ring seal is then inserted into the groove with the an-nular seal being mechani-cally trapped axially behind the lip to prevent the annu-lar seal from falling out of the groove.
Patent CA-2161448-A1 (CA)
Title: Process for polymerizing monomers in fluidized beds
Inventor: DECHELLIS MARC LOUIS
IPC: C08F4/659
Filed: 1994-04-25
Abstract: The invention is directed toward polymerizing alpha-olefins either alone or in combination with one or more other alpha-olefins utilizing a bully ligand transition metal catalyst in a gas phase fluidized bed polymerization reactor operating in condensed mode.
Patent CA-2161738-A1 (CA)
Title: Speed control system
Inventor: HORTON ERIC P
IPC: B60K31/04
Filed: 1995-10-30
Abstract: A  speed  controller  for vehicle  comprises  speed sensors which output to a controller which in turn outputs to a servo motor.  The servo is connected to the inner cable of a co-axial cable, the outer sheath of which is lodged between a buttress and the engine throttle.  The distance between the buttress and the engine throttle lever is, at least when the throttle is closed, shorter than the length of the outer sheath such that the outer sheath obtains a curved configuration.  The inner cable extends beyond the engine throttle lever to a support.  Accordingly, when the controller operates the servo to draw in the inner cable,  the outer sheath is urged to straighten and, thereby, push against the engine throttle lever to open it.  Conversely, when the inner cable is paid out, the outer sheath is relaxed to allow the engine throttle lever to close.
Patent CA-2162703-A1 (CA)
Title: Novel lupane derivatives, their preparation and pharmaceutical compositions containing same
Inventor: DEREU NORBERT
IPC: A61P37/04
Filed: 1994-05-06
Abstract: Lupane derivatives of general formula (I) in which R is: (II), wherein X is a bond or an optionally substituted carbamoyl or aminocarbonyl, Y is a bond or phenylene, R DEG  and R DEG  DEG , which are the same or different, are H or methyl and n is 6 to 12, m is 0 to 3 and p is 0 to 2, with 6  </=  m+n+p  </=  14, and R1 is methyl, hydroxymethyl, -CH2OR' or -CH2SR' (R' is alkyl or hydroxyalkyl), the alkyl radicals (1 to 4C) are straight or branched. The invention also concerns the salts of said derivatives and their preparation. The products according to the invention are especially useful in the treatment of AIDS and in infections induced by the herpes family of viruses.
Patent CA-2165437-A1 (CA)
Title: Utilization of efaroxan and derivatives therof for the preparation of a medicament intended to the treatment of parkinson disease
Inventor: COLPAERT FRANCIS
IPC: A61P25/16
Filed: 1994-06-15
Abstract: The present invention relates to the utilization of Efaroxan<TM> and its derivatives for the preparation of a medicament intended to the treatment of Parkinson disease.
Patent CA-2169483-A1 (CA)
Title: Fuel dispensing spout
Inventor: SIMPSON W DWAIN
IPC: F16L39/00
Filed: 1994-07-12
Abstract: A fuel dispensing spout (101) for use in a fuel dispensing nozzle is provided. The fuel dispensing spout (101) includes an inner cylindrical member (103) and an outer cylindrical member (102). The inner (103) and outer (102) cylindrical members are joined by series of ribs (104) which divide the space between the inner (103) an outer (102) members into a plurality of longitudinally and continually extending subchannels (105). Some of the subchannels (105) are utilized for vapor recovery during operation of the spout (101), while one (106) of the subchannels (105) is utilized in detecting pressure increases in captured air contained therein as fuel dispension takes place. The inside passageway (108) defined by the inner cylindrical member (103) is used for carrying fuel that is to be dispensed.
Patent CA-2173270-A1 (CA)
Title: Enantiomerically-enhanced nutritional energy substrates
Inventor: TRIMBO SUSAN
IPC: A23L1/30
Filed: 1996-04-02
Abstract: Synthetic  enantiomeric  esters  are  employed  as  energy substrates for parenteral or enteral nutritional formulations.   The substrates are provided in substantially monoisomeric or anomeric forms readily utilized in patient metabolism.
Patent CA-2174768-A1 (CA)
Title: Catalyst for use in olefin polymerization or copolymerization
Inventor: CHRANOWSKI STEPHEN MICHAEL
IPC: C08F4/64
Filed: 1994-12-05
Abstract: A catalyst precursor is formed by providing in slurry: (1) a carrier, which is porous and in the form of particles, or spheres, preferably particles of a cross-linked polymer, having a particle diameter of about 1 to about 300 microns, a porosity of about 0.001 to about 10 cc/gm, and a surface area of about 1 to about 1,000 m2/gm; (2) a metallocene complex having an empirical formula CpmMAnBp in which Cp is an unsubstituted or substituted cyclopentadienyl group, M is zirconium, titanium, or hafnium; m is 1, 2, or 3 and each of A and B is a halogen atom, hydrogen or an alkyl group, and (3) an anion forming reagent comprising either a borate complex or a borane. An alkyl aluminum compound is used in conjunction with the catalyst as either a cocatalyst or an impurity scavenger.
Patent CA-2175281-A1 (CA)
Title: Modular pedestal for vending machines
Inventor: SCHWARZLI JOSEF W
IPC: G07F9/10
Filed: 1996-04-29
Abstract: The invention provides a modular pedestal for a bank of vending machines, comprising a plurality of pedestal modules onto which each vending machine is mounted. Each pedestal module has a plurality of connecting posts disposed adjacent to edges of the top face at selected positions, so that when pedestal modules are placed side-by-side at least one post on the pedestal module is adjacent to at least one post on an adjacent pedestal module. A connecting member, havinga plurality of openings spaced apart a distance approximating the spacing between adjacent posts of the adjacent pedestal modules, is placed over the adjacent connecting posts to connect the modules together, and retained in position by the base of the vending machine. In a preferred embodiment the sides of the pedestalmodules converge slightly toward the top and the openings in the connecting elements are slightly larger than the posts, allowing adjacent pedestal modules to shift relative to one another and thus to accommodate an uneven floor surface.