baber/WOPTO huggingface dataset:
Patent CA-2028350-A1 (CA)
Title: Process for the accelerated ageing and treatment of iris rhizomes
Inventor: BACCOU JEAN CLAUDE
IPC: A01G7/04
Filed: 1990-10-23
Abstract: DESCRIPTIVE ABSTRACT            Process for the accelerated ageing and treatment of iris rhizomes.            The invention relates to a process for the accelerated ageing of iris rhizomes consisting of irradiating (6), after harvesting, all or part of the rhizomes with ionizing radiation with a view to accelerating the transformation of triterpenoids of the rhizomes into irones.  After leaving for several days (8), the irones pro-duced are extracted (10) and are ready for use, particularly in perfumery.          (single drawing) B 10233.3 LC
Patent CA-2028517-A1 (CA)
Inventor: WANG BOSCO S
IPC: C07K16/00
Filed: 1990-10-25
Abstract: 31,088-00 ENCHANCEMENT OF PORCINE SOMATOTROPIN ACTIVITY                  Abstract of the Disclosure This invention is directed to peptide fragments of porcine somatotropin (pST) which are used to generate epitope-specific anti-pST antibodies.  When such antibodies are administered with pST to warm-blooded animals, the growth enhancing activity of pST is potentiated.
Patent CA-2031835-A1 (CA)
Inventor: LALLIER GUY
IPC: E04F21/00
Filed: 1990-12-07
Abstract: FLUID ACTUATED CORNERBEAD CRIMPING TOOL          Background of the Invention This invention relates generally to a device for installing metal corner strip used in conjunction with a wallboard assembly.  More particularly, this invention relates to a device for installing metal cornerstrip or cornerbead on wallboard wherein the installation device is fluid activated, preferably by air.     Wallboard or sheetrock is well known and is used to provide smooth wall surfaces to the interiors of buildings.  As is also well known, the corner or edge where two wallboards form a 90° angle require a metal cornerstrip to protect the wallboard corners from breakage.  This metal cornerstrip comprises a flat metal sheet which is bent at an angle along the longitudinal center thereof.  Typically, the flat metal sheet has spaced openings therethrough for receiving
Patent CA-2033395-A1 (CA)
Title: Cartridge device for gas filtration
Inventor: BAERT JACQUES
IPC: B01D46/06
Filed: 1990-12-28
Abstract: ABSTRACT     A gas filtration device embodying in a frame a multiplicity of elongated porous polytetrafluoroethylene membrane filter pouches supported within by individual frames and without by a cradle. Useful for air filtration as a cartridge filter.
Patent CA-2034213-A1 (CA)
Title: Inductive coupled object identification system and method
Inventor: SLAWINSKI CHRISTOPHER
IPC: G06K7/08
Filed: 1991-01-15
Abstract: An inductive coupled object identification system (FIGURES 2a and 2b) uses inductive coupling to detect and identify objects. Each object includes an object resonance circuit (LT/CT) with a unique object resonance frequency.    Base electronics (50) includes an inductive-coupling base coil (L1) coupled to an oscillator circuit (60). To detect an object, the oscillator circuit continually sends START pulses to the base coil. When an object is proximate to the base coil, a START pules is inductively coupled to the object resonance circuit, causing it to resonate at the object resonance frequency. This resonance condition is detected by the oscillator circuit, which outputs an oscillation signal FREQ at the object resonance frequency.      Frequency counting logic (70) is used to determine the object resonance frequency, allowing a microcomputer (80) to identify the object. Two embodiments of the object identification system are described: a dynamic embodiment (FIGURES la and lb) in which ball-shaped objects (10) are dropped into a bowl (13) through a single base coil (L1) in the rim of the bowl, and a static embodiment (FIGURES 1c and 1d) in which ring-shaped objects (20) are placed over a post (23) incorporating multiple base coils (L1-L5). For the static embodiment, the multiple base coils are multiplexed by a base coil selector circuit (FIGURE 2b, 100).
Patent CA-2035141-A1 (CA)
Title: Agitators
Inventor: MIDDLETON JOHN C
IPC: B01F7/18
Filed: 1991-01-29
Abstract: AGITATORS      An agitator assembly for use in effecting dispersion of a fluid such as a gas in a liquid comprises a rotor having a rotatably driven shaft 18 mounting a series of scoop-shaped blades 20 which are oriented with the mouths 21 of the scoops presented in the direction of rotation of the shaft, each blade being mounted at an angle of attack such that one end of the blade leads the other in the direction of rotation. To eliminate gas cavity formation, each blade is of generally streamlined configuration in section and the ends 30 thereof are generally parallel to the direction of motion of the blade.
Patent CA-2039701-A1 (CA)
Title: Process for the preparation of functionalized (meth)acrylic macromonomers and macromonomers thus obtained
Inventor: REMPP PAUL
IPC: C08F8/12
Filed: 1990-09-07
Abstract: For the preparation of said macromonomers represented by the formula (PA)n-F or F-PA-F, wherein PA is a (meth)acrylic polymer sequence; n equals 1, 2 or 3; F is a group terminated by O<->, OH or by a vinyl radical providing that F is a group terminated by O<-> or OH when PA is a methacrylic sequence and n equals 1, the anionic polymerisation of a monomer A is carried out by means of an initiator system capable of leading to the formation of a leaving polymer sequence PA<-> or <->PA<-> and comprised of at least one primer respectively monofonctional or bifonctional and at least one ligand; then the obtained living linker is reacted with a functionalisation agent in order to obtain a macromonomer presenting one or two vinyl terminations or O<->. If the resulting macromonomer presents at least one termination O<->, it may be reacted with a second functionalization agent in order to obtain a macromonomer presenting at least one OH or vinyl termination.
Patent CA-2040282-A1 (CA)
Inventor: LONGINI RICHARD L
IPC: G01R21/133
Filed: 1991-04-11
Abstract: A method and apparatus for digitally measuring electrical energy consumption from a transmission line carrying alternating current. Instead of actually measuring current from a transmission line conductor, the time derivative of the magnetic field induced by current flowing in the conductor is measured thereby obtaining a reading which is proportional to the time derivative of the current flow. Using an appropriate microcomputer, the time derivative of the magnetic field (the magnetic field rate of change) is represented with an algorithmic series for expressing cyclic phenomena, such as the Fourier series of low order. An approximation of the power consumption is then computed by converting the time derivative of the current as expressed in the algorithmic series and a voltage measurement from the conductor mathematically to a power reading, and the power reading is summed to obtain a number value proportional to the energy consumption. Even harmonics and high frequency harmonics may be eliminated in the algorithmic expression of the current derivative to further simplify computer computations and required hardware, and the magnetic rate of change pickup and the voltage pickup are preferably filtered to remove unwanted noise.
Patent CA-2041722-A1 (CA)
Title: Coal hydroconversion process comprising solvent enhanced pretreatment with carbon monoxide
Inventor: NESKORA DANIEL R
IPC: B01J27/047
Filed: 1991-05-02
Abstract: ABSTRACT OF THE DISCLOSURE           This  invention  is  directed   to  a  staged process for  producing  liquids  from  coal  or similar carbonaceous feeds combining a pretreatment stage and a liquefaction stage.  In  the process, the  feed is dis-persed in an  organic solvent  and reacted  with carbon monoxide at an  elevated temperature  and pressure. The so pretreated coal  is sent to  a liquefaction reactor, wherein the coal is reacted in the presence of hydrogen and catalyst to produce valuable  liquid fuels or feed-stocks.
Patent CA-2042593-A1 (CA)
Title: Procede de fabrication de preformes de fibres optiques
Inventor: OKAMURA KOUJI
IPC: C03B37/018
Filed: 1990-10-31
Abstract: Un premier processus de l'invention comprend la formation de deux parties comprimées (28) sur un tube de quartz à réaction (4), l'introduction d'une solution d'un composé d'un élément des terres rares dans la section située entre les parties comprimées (28) pour dopage.  La concentration de l'élément dopant devient ainsi uniforme sur la longueur d'une préforme de fibre optique (30) rarement imparfaite.  Ce processus ne comporte aucune opération complexe.  Un deuxième processus de l'invention comprend l'imprégnation d'une solution sous forme de brume dans une couche de coeur (26) formée par dépôt de suies, permettant ainsi de contrôler avec précision la concentration de l'élément dopant.  Un troisième processus de l'invention consiste à imprégner une solution, tout en contrôlant la concentration en réponse à une quantité d'un faisceau laser transmis au travers de la couche de coeur (26); la concentration de l'élément dopant est assurée indépendamment de la densité de la couche de coeur.  Un quatrième processus de l'invention comprend la répétition de la formation de la couche de coeur (26) à différentes températures;on peut établir arbitrairement la distribution de la concentration de l'élément dopant le long de la direction radiale du coeur.
Patent CA-2042981-A1 (CA)
Inventor: OAKES JOHN
IPC: C07C255/46
Filed: 1991-05-21
Abstract: ABSTRACT            Bleaching (detergent) compositions are disclosed comprising a peroxide bleaching agent and a novel cationic peroxyacid bleach precursor having at least one of the following groups (A) and (B) :            (A)    - N+ - CR1R_CN     (B)      wherein R1 and R2 are each individually H, or a substituent group containing at least one carbon atom, provided that R1 and R2 are not both H.            The novel bleach precursor of the cationic nitrile type shows no tendency to deliguesce under normal atmospheric conditions.
Patent CA-2043830-A1 (CA)
Title: Polymer material of thermo-optical effect for a bistable optical device
Inventor: WESTLAND DUNCAN J
IPC: G02F1/01
Filed: 1991-06-04
Abstract: POLYMER MATERIAL OF THERMO-OPTICAL EFFECT FOR A BISTABLE OPTICAL DEVICE.    ABSTRACT            The present invention provides a bistable optical device in which the active medium is a polymer material of thermo-optical effect inserted into a cavity resonator, preferably a FABRY-PEROT resonance cavity, in said cavity the polymer material transmitting and reflecting an incident light wave with bistable values and values variable according to its thermal state.  This latter is varied by the absorption of a fraction of the incident light wave, which transfers heat to the polymer material to generate therein an increase in the transmission of the incident light and a variable refractive index in response to the increase in its temperature, to thus provide a positive response effect which enables the device of the present invention to vary between two bistable states.
Patent CA-2044549-A1 (CA)
Title: New light polarizing films or foils and dyes for their production
Inventor: CLAUSSEN UWE
IPC: C08K5/42
Filed: 1991-06-13
Abstract: New light polarizing films or foils and dyes for their production A b s t r a c t The present invention relates to light polarizing films containing water-soluble, transparent organic polymers and dichroic dyes capable of fluorescence and to new dichroic dyes.
Patent CA-2048231-A1 (CA)
Inventor: DAHNERT DEAN L
IPC: F16P3/14
Filed: 1991-07-31
Abstract: A control circuit for continually testing a photoelectric: detector. The detector includes a light source, and a photoelectric receiver having a predetermined drop-out tuna, attached to a movable storage carriage, spaced apart and substantially sight-aligned.       The carriage has a reversible electric motor which is controlled by the control circuit, including at least two relays, the contacts of which are connected in series so that the contacts of both must be closed in order for the motor to be energized. The relay drop-cut time is substantially longer than the receiver drop-out time. In the circuit, an inverter is connected between the second coil and the light source. This inverter inverts signals received from the second coil and passes thorn to the light source so that receipt of a signal at the receiver causes the light source to turn off, in turn causing a loss of signal at the receiver, resulting in the light source turning on. An oscillation is thus established which passes through each component of the monitoring circuit and the detector. The drop-out time of the relays is long enough that the relays stay closed unless the oscillation is stopped, either by a failure of the monitoring circuit or light source or receiver, or by the light beam being broken. In either case, one or both of the relays opens, disabling the carriage from moving.
Patent CA-2050142-A1 (CA)
Title: System of tubes and connector blocks to contain electric telephone and television cables and similars
Inventor: SERGIO ZEN
IPC: G02B6/50
Filed: 1991-08-28
Abstract: TITLE A SYSTEM  OF TUBES  AND CONNECTOR  BLOCKS TO CONTAIN ELECTRIC TELEPHONE AND TELEVISION CABLES  AND SIMILARS                   ABSTRACT The present is a system of tubes and connector blocks to contain electric  telephone and television cables.  The tubes and the blocks are subdivided by dividing walls which create perfectly separated cavities to contain the cables.
Patent CA-2051686-A1 (CA)
Title: Single transistor non-volatile electrically alterable semiconductor memory device with a re-crystallized floating gate
Inventor: YEH BING
IPC: H01L29/788
Filed: 1991-01-18
Abstract: A single transistor electrically programmable and erasable memory cell (10) has a substrate (12) of a semi-conductor material of a first-conductivi-ty type (18). Within the substrate are de-fined source (16), drain (14), regions with a channel region (18) therebe-tween. A first insulating layer (20) is disposed over the subtract (12) and over the source (16) channel (18) and drain (14) regions. An electrically conductive, re-crystallized floating gate (22) is dis-posed over the first-insulating layer (20) and extends over a portion of the chan-nel region (18) and over a portion of the drain region (14) to maximize capaci-tive coupling therewith. A second insu-lating layer (25) has a top wall portion (24) over the floating gate (22) and a side wall portion (26) immediately adja-cent to the floating gate (22) and has a thickness which permits the Flowler-Nordheim tunneling of charges therethrough. An electrically conductive control gate (29) has two electrically connected sections: a first section (30) is over the first insulating layer (20) and is immediately adjacent to the side-wall portion (26) of the second in-sulating layer (25). The first section (30) extends over a portion of the channel region (18) and over the source region (16). A sec-ond section (28) is disposed over the top wall portion (24) of the second insulating layer (25) to minimize capacitive coupling with the floating gate (22).
Patent CA-2052476-A1 (CA)
Title: Rotary-anode type x-ray tube
Inventor: ONO KATSUHIRO
IPC: H01J35/10
Filed: 1991-09-30
Abstract: A rotary-anode type X-ray tube wherein bubbles produced in the gap of a sliding bearing are securely and easily replaced with liquid metal lubricant and the lubricant is prevented from leaking because a rotary anode 11 is secured to a cylindrical rotary structure 12 and a columnar fixed structure 15 is fitted to the rotary structure 12, a gap is formed between the rotary structure 12 and fixed structure 15 and filled with liquid metal lubricant, spiral grooves 20 and 21 are formed on a part of the outer surface of the fixed structure 15 and the sliding bearing is installed between the fixed structure 15 and the rotary structure 12, the rotary structure 12 and fixed structure 15 are housed in a vacuum envelope 18, the gap of the sliding bearing is connected to the space inside the vacuum envelope through an annular space 25 and gap formed between a ring block 16 for blocking the opening of the rotary structure 12 and the fixed structure 15, a spiral groove to return the lubricant to the space 25 is formed on the outer surface of the ring block 16 facing the gap, and the space 25 is coated with a film repelling the liquid metal lubricant.
Patent CA-2055355-A1 (CA)
Title: Conductive polyurethane-urea/polyethylene oxide
Inventor: EHRHART WENDELL A
IPC: H01B1/12
Filed: 1991-11-13
Abstract: CONDUCTIVE POLYURETHANE-UREA/POLYETHYLENE OXIDE                Abstract of the Invention A water reaction synthesis with polyoxyethy-lene diol, diisocyanate and dibutyltin bis lauryl mer-captide produces a high molecular weight thermoplastic polyurethane-urea linear polymer with surface resisti-vity 1011 - 106 ohm/sq.  Thermoplastic and/or elasto-meric antistatic compositions containing other melt processable polymers and/or filler, and the polymer exhibit permanent protection.  Antistatic protection can be increased when the polymer complexes with a metal salt such as lithium chloride, or lithium acetate.  The composition is useful in the manufacture of antistatic floor coverings and textile elements such as cots and aprons.
Patent CA-2055419-A1 (CA)
Title: Nonaqueous polyisocyanate formulation
Inventor: HAEBERLE KARL
IPC: C08G18/70
Filed: 1991-11-13
Abstract: Nonaqueous polyisocyanate formulation containing a)   one or more aliphatic polyisocyanates having a mean NCO functionality of from 2.5 to 3.5 and b)   an amount, which ensures that the polyisocyanate is dispersible, of a reaction product of a diisocyanate selected from the group consisting of tetramethylene diisocyanate,  hexamethylene diisocyanate, dodecamethylenediisocyanate,1,4-diisocyanatocyclohexane, 4,4'-di-(isocyanatocyclohexyl)-methane, diisocyanatotrimethylhexane,    diisocyanatotetramethylhexane, 1-isocyanato-3,3,5-trimethyl-5-(isocyanato-methyl)-cyclohexane, tolylene  2,4- and 2,6-diiso-cyanate, tetramethylxylylene diisocyanate, p-xylylene diisocyanate,  2,4'- and 4,4'-diisocyanatodi-phenylmethane and a mixture of two or more of these diisocyanates  with  a  monohydric  or  polyhydric polyalkylene ether alcohol where the alkylene groups are of 2 to 4 carbon atoms and which contains a polyether chain having 8 or more ethylene oxide units, are prepared and are used in aqueous coating materials and in adhesive dispersions.
Patent CA-2056016-A1 (CA)
Inventor: OHMICHI MAKOTO
IPC: H04W88/02
Filed: 1991-11-22
Abstract: A portable radio telephone is capable of setting up a channel by electromagnetic transmission to a base station, which is connected to a telephone network. On the termination of a call, the telephone user is prompted to press aparticular key, to which an answering function is fixedly assigned. The telephone allows the user to assign the function of answering the termination of a call to any other selected key on the telephone.
Patent CA-2057125-A1 (CA)
Title: Apparatus for controlling and monitoring a lubricating system
Inventor: BECK DAVID C
IPC: F16N29/02
Filed: 1991-12-05
Abstract: An apparatus for controlling and monitoring a lubricating  system having  analog  sensors  and  switches indicating  the  status  of  the  lubricating  system.   An analog-to-digital  converter  is  responsive to  the analog sensors and switches and provides a plurality of digital sensing signals representative of the status of the lubricating system.  A provided memory includes a nonvolatile memory for storing instructions.  By using a keypad,  an operator selects and inputs parameters into the nonvolatile memory.  A microprocessor  processes  the digital  sensing  signals  in accordance with the parameters stored in the nonvolatile memory.  Relays are responsive to the microprocessor and initiate lubrication of the lubricating system.  A display, responsive to the microprocessor, indicates the status of the lubricating system.
Patent CA-2059055-A1 (CA)
Inventor: ROSENBAUM STANLEY D
IPC: H04M19/02
Filed: 1992-01-08
Abstract: High voltage converters  are disclosed.   The converters include at least a pair of transistor switches provided on the secondary windings of a flyback transformer. The transistor switches are controlled to be conducting, variably conducting and non-conducting so that the power flow between the transformer and a load can be controlled. Various configurations of a connection switch network are also disclosed.
Patent CA-2060195-A1 (CA)
Title: Pressure releasing device for overload apparatus
Inventor: HANKS JAMES V
IPC: F16D43/286
Filed: 1990-05-04
Abstract: Device (200) for releasing fluid pressure from the pressure chamber of an overload clutch (A) is disclosed including a valve (210) captured in a radial cavity (202) in the cylinder (10) of the overload clutch (A) between a shoulder (204) and a valve cover (212) held by a snap ring (226). The valve cover (212) includes an aperture (228) for receiving a ball (230) and allowing the ball (230) to move radially inwardly to push against the spool member (220) of the valve (210) to unseat its head (221) from a seat (218) but preventing the ball (230) from moving out of the valve cover (212). The ball (230) rolls on a valve actuator (232) mounted to the piston (22). When the cylinder (10) and piston (22) are axially separated by fluid pressure, the ball (230) is located in a detent (234) formed in the valve actuator (232) such that the head (221) of the spool member (220) seals with the seat (218) and prevents release of fluid pressure from the pressure chamber. When the cylinder (10) and the piston (22) move axially against the normal bias direction of the fluid pressure, the ball (230) rolls out of the detent (234) and pushes against the spool member (220) to unseat the head (221) from the valve seat (218). In the most preferred form, the valve actuator (232) is adjustably mounted to the piston (22) by a turnbuckle (238), with the valve actuator (232) and the turnbuckle (238) formed of hexagonal stock for receipt in a wrench.
Patent CA-2060395-A1 (CA)
Inventor: RICHARD MICHEL
IPC: D21D1/20
Filed: 1992-01-30
Abstract: TITRE de L'INVENTION NOUVEAU PROCEDE DE RAFFINAGE DE LA PATE A PAPIER TEXTE de L' Perfectionnement aux procédés de raffinage de la pâte à papier dans lequel on mélange un sol de silice colloïdale avec la pâte à papier à raffiner.
Patent CA-2061473-A1 (CA)
Title: Method and apparatus for mounting ancillary equipment to a furnace
Inventor: HARKNESS IAN K
IPC: C03B5/00
Filed: 1992-02-19
Abstract: METHOD AND APPARATUS FOR MOUNTING  ANCILLARY EQUIPMENT TO A FURNACE                         ABSTRACT      A furnace has side walls and a bottom wall with a refractory lining.  To permit mounting of ancillary equipment such as electrode refractory blocks are fitted to the bottom wall of the furnace.  To mount each refractory block a hole is bored through the bottom wall from the exterior of the furnace with a large diameter in the outer part of the wall and a smaller diameter in the lining.  The refractory block has a stepped construction to fit closely inside the bored holes.  A central passageway through the refractory block has a removable plug at its inner end which may be displaced by insertion of an ancillary device such as an electrode.
Patent CA-2061487-A1 (CA)
Title: Coating material stabilised against light-induced degradation
Inventor: VALET ANDREAS
IPC: C07D251/24
Filed: 1992-02-19
Abstract: 2-(2-Hydroxyphenyl)-4,6-diphenyl- and -4,6-di-p-tolyl-1,3,5-triazines are particularly suitable stabilisers, especially against light-induced degradation, for coating materials. They are superior in this respect to the corresponding 4,6-bis(2,4-dimethylphenyl) derivatives.