baber/WOPTO huggingface dataset:
Patent CA-2028855-C (CA)
Title: Method for reproducing coniferous plants by somatic embryogenesis
Inventor: GUPTA PRAMOD K
IPC: A01H4/00
Filed: 1990-02-23
Granted: 1995-04-18
Abstract: The present invention is a method for reproducing coniferous trees by somatic embryogenesis using plant tissue culture techniques. The method comprises a multistage culturing process. A suitable explant, typically the fertilized embryo excised from a mature or imma-ture seed, is first cultured on a medium that induces multiple early stage proembryos. Preferably the proembryos from the induction stage are further multiplied in a second culture having reduced growth hor-mones. The early stage proembryos are then placed in or on a late stage proembryo development culture having a significantly higher osmotic potential than the previous stage or stages. This increased osmotic potential medium is a critical key to the development of very robust late stage proembryos having at least about 100 cells and multiple suspensor cells. Culturing from this point continues in an embryo devel-opment medium very low in or lacking growth hormones but containing abscisic acid. After a period of several weeks cotyledonary embryos will have formed. These have a well defined bipolar structure with cotyledonary primordia at one end and a latent radicle at the other. Culturing to this point is carried out in darkness or greatly subdued light. The cotyledonary embryos are then transferred to a growth medium with a light/dark photoperiod for development of plantlets. The plant-lets may then be transplanted to soil for further growth. The method has been successful with a broad range of species and with numerous genotypes that could not previously be propagated by embryogenesis.
Patent CA-2030381-C (CA)
Inventor: LEFEVRE DIDIER
IPC: G01N33/50
Filed: 1990-11-19
Granted: 1997-03-25
Abstract: The invention relates to a reagent and to a method of using same for automatically determining at least one leukocyte sub-population from a total blood sample.  Thanks to this reagent, it is possible, in a single step, to lyse the erythrocytes through the action of saponin and SDS, as well as to ensure the differential staining of the leukocyte sub-populations, at the same time preserving the integrity and morphology of the cells, through the combined action of various components including chlorazol black, an alcohol, a surfactant and preserving agents. The reagent according to the invention can be applied to different types of automatic flow cytometry analyzers.
Patent CA-2031780-C (CA)
Title: Method and product for extruding plastic with accent color pattern
Inventor: SALOOM THOMAS JOSEPH
IPC: B29C48/07
Filed: 1990-12-07
Granted: 1995-10-17
Abstract: A new and useful process for producing a plastic article (e.g., vinyl siding) with an accent color pattern incorporated therein, and a specially formed accent color pellet which is useful in such a process. The process contemplates extruding a plastic product from a base compound formed of powder sized particles and specially formed accent color pellets. The accent color pellets are alloyed masses of resins and pigment which are larger than the powder particles of the base compound, and have a higher deflection temperature than the base compound. The alloyed pellets are designed with controlled heat deflection characteristics. During the extrusion process, the accent color pellets begin to soften and disperse later than the base compound, and cause restricted dispersion of the accent color into the base compound, thereby producing accent color streaks in the resulting extrudate. The process is particularly suited for producing a simulated woodgrain or streaking effect in plastic (e.g., vinyl) siding.
Patent CA-2033369-C (CA)
Title: Photonic switching system
Inventor: FUJIMOTO NOBUHIRO
IPC: H04Q11/00
Filed: 1990-12-28
Granted: 1994-11-29
Abstract: A photonic switching system includes an optical link conversion board having a first end and a second end opposite to the first end, a plurality of wavelength converter elements arranged at a constant pitch along the first end of the optical link conversion board and converting input optical signals into optical signal components having different wavelengths, a combiner for combining the optical signal components received from the wavelength converter elements into an optical signal which includes optical signal components having a plurality of wavelengths, a plurality of light output parts arranged at a constant pitch along the second end of the optical link conversion board, and a deflector for sequentially deflecting the optical signal from the combiner to an arbitrary one of the light output parts in response to a control signal so that the optical signal at the arbitrary light output part includes a plurality of optical signal components having different wavelengths.
Patent CA-2033937-C (CA)
Title: Hemihydrate
Inventor: IBRAHIM JUTTA
IPC: C12N9/99
Filed: 1991-01-10
Granted: 2001-03-13
Abstract: The invention relates to a novel crystalline form, containing water of crystallisation, of 4-(5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-5-yl)-benzonitrile hydrochloride of formula Ia (see formula I) and to a process for the preparation thereof. The novel crystalline form is distinguished by excellent storage stability.
Patent CA-2037576-C (CA)
Title: Clarifiers for polyolefins and polyolefin compositions containing same
Inventor: MILLNER O ELLMO
IPC: C08L23/00
Filed: 1991-03-05
Granted: 1999-11-23
Abstract: Dibenzylidene xylonates are a new class of clarifiers for polyolefins. the invention includes polyolefin compositions having the new clarifiers therein.
Patent CA-2041319-C (CA)
Title: Controlled thallous oxide evaporation for thallium superconductor films and reactor design
Inventor: EDDY MICHAEL MARTIN
IPC: C30B11/00
Filed: 1991-04-26
Granted: 2002-07-09
Abstract: Methods and reactors are described for the production of thallium cuprate based high temperature superconductor films on a variety of substrates. The reactors provide for low volume cavities, means for rapidly heating and cooling to and from a predetermined elevated temperature and control of the thallium oxide overpressure during the processing. Uniform high temperature superconducting films are obtained while inhibiting reaction between the substrate and superconducting film during the processing.
Patent CA-2044768-C (CA)
Title: Disposable diaper with barrier sheet
Inventor: VITARIS RONALD F
IPC: A61F13/15
Filed: 1991-06-17
Granted: 2001-12-04
Abstract: A disposable diaper having a backing sheet having a crotch portion, an absorbent pad having a pair of opposed side edges, and a liquid impervious barrier sheet having side margins extending around the side edges of the pad, such that the barrier sheet provides a barrier preventing waste material from escaping through the back of the diaper or through the side edges of the pad.
Patent CA-2048471-C (CA)
Title: Water-containing liposome system
Inventor: HAGER JORG
IPC: B01J13/02
Filed: 1991-08-06
Granted: 2002-02-26
Abstract: An aqueous liposome system which contains at least one phospholipid and which may contain a non-toxic organic solvent. In addition to the at least one phospholipid the liposome system contains at least one phospholipidic charge carrier.
Patent CA-2049822-C (CA)
Title: Stable aqueous preparation
Inventor: USHIO KAZUMICHI
IPC: A61K9/00
Filed: 1991-08-26
Granted: 2001-07-24
Abstract: Presented is a stable aqueous preparation for ophthalmic topical administration containing vitamin A or a vitamin A derivative having vitamin A activities to be used for the treatment of dry eye syndrome characterized in that it captains a buffering component selected from the group consisting of phosphoric acid, boric acid, citric acid, glutamic acid, .epsilon.-aminocaproic acid and the alkali metal salts thereof, a non-ionic surfactant and a chelating agent, that its acidity is adjusted an the range of pH 5 to pH 8, and that it is filled in a tight container made of polypropylene or polyethylene terephthalate.
Patent CA-2050066-C (CA)
Title: Fishing lure system and rattle therefor
Inventor: PIPPERT AARON J
IPC: A01K85/01
Filed: 1991-08-27
Granted: 1994-04-05
Abstract: Abstract of the Disclosure A fishing lure system comprises a rigid head and a body having a  loading  surface adjacent  the head.   The  body, preferably  flexible,  extends  rearwardly from  the  leading surface and removably receives a shank extending rearwardly from the head.   The body has a rattle cavity with a mouth opening  through  the  leading  surface and offset  from the shank.  A rattle assembly, preferably longer and wider than it is high, is removably disposed in the cavity.  The system may further comprise a different type of lure, such as a spoon-type  lure,  adapted  to  removably  receive the  same rattle assembly  which  is  disposed  in  the aforementioned cavity.
Patent CA-2051364-C (CA)
Title: Method of preparing photoconductive pigments
Inventor: WASMUND ERIC B
IPC: G03G5/06
Filed: 1991-09-13
Granted: 1995-10-10
Abstract: In  a  process  for  preparing  a  photoconductive pigment, a polymorph of a pigment is produced by a conver-sion process wherein a seed amount of the desired poly-morph  of  the  pigment  and a  larger  amount  of  another polymorph of the pigment are subjected to a liquid jet interaction process.
Patent CA-2052413-C (CA)
Inventor: JOSEPH JEFFREY L
IPC: C12Q1/68
Filed: 1991-09-26
Granted: 2004-07-13
Abstract: Short nucleotide sequences of human papilloma virus useful for the determination of the presence and type of human popilloma virus present in a test sample. The sequences provided can be amplified by polymerase chain reaction or ligase chain reaction. The sequences provided also can be hybridized by standard slot-, dot- or replica-blot procedures. Methods and kits also are provided for the detection of human papilloma virus in a test sample and the determination of the type of human papilloma virus present in the test sample.
Patent CA-2070801-C (CA)
Title: Tilt tray sorter accessory
Inventor: RICHARDSON DESMOND HAIG
IPC: B65G47/61
Filed: 1991-12-12
Granted: 2001-05-01
Abstract: An accessory (10) for a tilt tray sorter comprises a frame (11) and is adapted to be suspended by a fixture (12) from a transport mechanism of the type usually associated with conventional parcel sorting equipment. The frame (11) carries two or more tilting trays (14) which are attached by pivots (15) to the frame (11). Each of the tilting trays (14) has associated with it, a tilting mechanism (16) which comprises a pair of parallel rods (17) suspended below each tray. In addition, a bracket (18) is provided above each tray (14). The bracket carries a cam (19). The cam (19) pivots about an upper axis (20). The side of the cam which faces the tray (14) carries a stub (21). The stub (21) is received between the parallel rods (17). Thus, as the cam (19) pivots and returns to its rest position, the tray (14) is displaced from a level position to a tipped position and back again.
Patent CA-2075402-C (CA)
Title: Method and apparatus for the generation of smoothness and gloss
Inventor: LINK CHRISTOF
IPC: D21G1/00
Filed: 1992-08-06
Granted: 1999-03-16
Abstract: The invention has as its object the provision of a method and an apparatus for the generation of smoothness and gloss on paper which essentially precludes a re-erection of the surface fibers after the smoothing process. This is achieved in that the surface of a paper web (1) to be smoothed is heated to a temperature above the glass transition temperature of the fibers at the surface of the web and these fibers are deformed and fixed in the deformed state in a subsequent process step under the simultaneous action of pressure with shock cooling.  Accordingly, there is associated with each surface of the paper web (1) to be smoothed a heating device (2) and also a subsequent cooled body (5, 9, 10) which presses against the surface.
Patent CA-2077988-C (CA)
Title: Method and apparatus for drying containers
Inventor: YOSHIMURA TAKAYUKI
IPC: B65G15/58
Filed: 1992-09-10
Granted: 2001-01-16
Abstract: A drying arrangement includes transport device which uses suction or magnetism to produce an attractive force via which containers can be picked up by their bottom wall after they have come out of a washing station, and carried with an open end thereof oriented downwardly, over a nozzle arrangement which suctions off water in liquid form from the containers and over an arrangement which uses hot air to dry off the remaining water.
Patent CA-2079893-C (CA)
Title: Ring clamp for a cutter ring in a tunnel drilling machine
Inventor: NARVESTAD STEIN
IPC: E21B10/12
Filed: 1991-04-05
Granted: 1999-11-02
Abstract: Ring clamp for securing of a cutter ring to a cutter roll in a tunnel drilling machine, the cutter ring comprising at least two segments having a dovetail shaped basis and the ring clamp (3) having a corresponding wedge shape and also comprising at least two segments (3A, 3B, 3C) whereby the segments are secured to the roll by means of bolts (4), CHARACTERIZED IN the inner radius (R) of the segments (3A, 3B, 3C) being different from the radius (r) in the groove (5) in which the segments of the ring clamp are secured.
Patent CA-2083002-C (CA)
Title: Automatic printer data stream language determination
Inventor: CALLISTER DAVID BART
IPC: G06K15/00
Filed: 1992-11-16
Granted: 2001-02-06
Abstract: Printer (1) monitors current control language being interpreted for end of page and end of job codes, depending upon the language. Upon observing such commands, up to 500 bytes in buffer memory (19) are observed for command codes characteristic of specific languages. ASCII language is recognized by any one of several command codes, many of which have ESC. PostScript language is recognized by any one of several commands including the ASCII sequence of the percent sign. PCL4 or PCL5 and pen movement graphics languages are also recognized. Operator intervention and special coding defining the language are completely avoided.
Patent CA-2084532-C (CA)
Inventor: CHEMELLI JOHN BENJAMIN
IPC: B01L3/00
Filed: 1992-12-04
Granted: 2003-10-07
Abstract: There is described a method for forcing liquid out of a burstable compartment into a detection chamber without also forcing residual air of that compartment to interfere with liquid detection. The method features applying pressure sufficient to eject the liquid but not the residual air, and retaining that pressure as long as the reaction period of the liquid takes place, called the incubation period, and then completing the ejection to eject residual air into the chamber.
Patent CA-2086228-C (CA)
Inventor: HUMPHREYS ROBERT W
IPC: C11D1/66
Filed: 1992-12-23
Granted: 1998-09-22
Abstract: The invention relates to detergent, cleansing or personal product compositions comprising a glycerogylycolipid surfactant having an ether linkage.
Patent CA-2086777-C (CA)
Title: Video signal correction system
Inventor: TSUJI TOSHIAKI
IPC: H04N5/14
Filed: 1993-01-06
Granted: 1998-11-17
Abstract: A novel video signal correction system is disclosed, in which an average picture level detection circuit detects the average picture level (APL) of a luminance signal, and a coefficient calculation circuit calculates the amount of correction by the APL circuit.  An adder adds an APL-corrected signal to a corrected luminance signal.  A limiter circuit, on the other hand, limits the lower limit level of an input luminance signal.  A divider circuit divides an output signal of the adder by an output signal of the limiter circuit, and the result is used to correct an input color signal.  The color signal is thus capable of being corrected in accordance with the APL while at the same time preventing excessive correction of the color signal with a low brightness input.
Patent CA-2088964-C (CA)
Title: Light fixture with a reversible lens with adjustable brackets
Inventor: RUSSELLO THOMAS
IPC: F21S8/00
Filed: 1993-02-05
Granted: 2004-05-11
Abstract: A light fixture includes a symmetric trough-shaped lens with a first longitudinal side which is substantially clear and a second longitudinal side with prismatic elements. The lens is reversibly mounted with brackets including parallel tines with pairs of opposing protuberances which fit into slots in the fixture.      Side reflectors are optionally inserted into the lens inwardly adjacent from the end walls in order to adjust the light distribution pattern.
Patent CA-2089545-C (CA)
Inventor: HENNENKAMP JEFFREY RAYMOND
IPC: C01G5/00
Filed: 1993-02-15
Granted: 1997-10-14
Abstract: Silver nitrate crystals comprising a substantially non-platelet crystal morphology are disclosed.  The non-platelet silver nitrate crystals have an aspect ratio in the range of from about 1:2:3 to about 1:1:1.  Figures 4 and 5.
Patent CA-2098516-C (CA)
Inventor: ALI SHAIKH FARHAD
IPC: D21B1/32
Filed: 1993-06-16
Granted: 2001-05-29
Abstract: The details of a device, being basically common for making high quality primarily mechanical, but also semi-mechanical and chemical pulps from almost all kinds of cellulosic raw materials such as wood, waste papers and non-wood plants - and with low capital and operating costs - are disclosed.      These raw materials, mainly due to the sloped configuration of the platform, butt against the retaining bars to maintain a relatively constant distance from the shower headers which are located behind these bars. These headers, through the shower jets, apply oscillating, fan-shaped, overlapping, hot water sprays under pressure, with or without chemicals, to the surface of the cellulosic material being defibered - to make pulp. The dislodged fibres i.e. the pulp passes through the floor-openings, to be collected and processed by the normal industry methods. As an example, to make a mechanical pulp from debarked logs, the pressurized, oscillating, hot jet water sprays, with or without chemicals, surround the wood fibres, soften the lignin, and dislodge the horizontally oriented wood fibres gently and in relatively less-damaged conditions. By using relatively low jet hot water pressure at a constant distance to a large amount of raw material at the same time, this basic-for-all-pulping device, with its low capital and operating costs, is an improvement on the existing art to manufacture uniform quality, strong pulps.
Patent CA-2098767-C (CA)
Title: Blower mounting with belt tensioner
Inventor: HOHNL GARY DAVID
IPC: F16H7/08
Filed: 1993-06-18
Granted: 1995-11-07
Abstract: A mounting structure for drivingly connecting a belt driven attachment such as an auxiliary blower to a mower deck or similar implement.  The connecting structure includes a pivot and sleeve arrangement between one end of the blower and the mower deck for quickly and easily positioning the blower on the mower deck.  The pivot then allows for the blower to be swung around adjacent to the mower deck to permit a latching mechanism to be engaged between the mower deck and the blower. The combination latching and belt tensioning mechanism permits generally simultaneous belt tensioning for belt driven blowers as the rear of the blower is latched to the mower deck. Should the latch not be aligned and, therefore, not secure the mower to the blower deck, provision is made for the belt tensioning arrangement to not engage the blower attachment adequately with the mower's belt drive.
Patent CA-2098935-C (CA)
Title: Method of cleaning containers, a rinsing assembly and an apparatus for cleaning containers
Inventor: EGGER WALTER C
IPC: B08B9/093
Filed: 1993-06-22
Granted: 1996-07-16
Abstract: The invention provides a method of cleaning containers, par-ticularly bottles, in which the bottles to be cleaned are continu-ously moved in uniform spatial orientation past a row of jet noz-zles ejecting a cleaning agent. Each time a bottle passes a par-ticular jet nozzle, that jet nozzle is aligned with the bottle mouth during a certain portion of the path of motion of the bot-tle. This follower motion is positively effected by means of a catch member provided at the jet nozzle. The advantage of the method according to the invention lies in the fact that each jet nozzle is aligned with the bottle mouth during a relatively long period of time and, thus, is able to clean the bottle more effec-tively.  The jet nozzle can be mounted at the end of a swiveling lever arm member being under the influence of a spring member forcing the lever member back to an initial position. A cleaning apparatus can provide a row of such jet nozzles which are swivel-ing independently from each other. As a conveying means for the bottles, a drag chain conveyor can be provided since the mutual distance of the bottles to be conveyed past the jet nozzles is not critical.
Patent CA-2105258-C (CA)
Inventor: ASAI YUJI
IPC: H03H9/02
Filed: 1993-08-31
Granted: 1998-06-23
Abstract: A piezoelectric semiconductor is a single crystal composed mainly of ZnO having properties such as electrical conductivity of 10-11 ~ 10-3 1/.OMEGA.~ cm suitable for use as an acoustoelectric element, by adding a given amount of H2O2 to the alkali solvent, or by using NH4OH in the alkali solvent, or by doping the ZnO single crystal with Li or a trivalent metal. The piezoelectric semiconductor can be suitably used as a ultrasonic transducer material of acoustoelectric type and can also be used as a material for ultrasonic amplification, an surface acoustic wave filter, a piezoelectric transducer, a fluorescent material for emitting a low-velocity electron beam, etc.
Patent CA-2110947-C (CA)
Title: Resistance welding process for aluminum and aluminum alloy materials
Inventor: OKITA TOMIHARU
IPC: B23K11/10
Filed: 1993-12-08
Granted: 1999-09-21
Abstract: A resistance welding process for aluminum and aluminum alloy materials for enabling the remarkable improvement of the electrode life comprises the steps of preparing an insert material having the overall thickness of 0.02 to 1 mm including a sheet-like core material consisting of iron, steel, copper or copper alloy and coated layers each having the thickness of 1 to 100 µm, consisting of any one of Ni, Ni alloy, Ti, Ti alloy, Nb, Nb alloy, Mo, Mo alloy, W, W alloy, Cr, Cr alloy, Co and Co alloy and formed on both surfaces of the core material, or an insert material consisting of Ti foil or Ni foil; interposing the insert material between each of upper and under electrodes and each portion of overlapped materials to be welded consisting of aluminum or aluminum alloy; pressurizing the materials to be welded by the upper and under electrodes to join the materials to be welded together. The coated layers on both surfaces of the core material may consist of the same metal or different metals from each other. When the core material of the insert material consists of iron or steel, the insert material having the coated layer consisting of Ti and formed on one surface is interposed between each electrode and each portion of the materials to be welded in such a state that the coated layer faces each material to be welded, and the materials to be welded are pressurized and jointed together.
Patent CA-2110988-C (CA)
Title: Sequence-specific binding polymers for duplex nucleic acids
Inventor: SUMMERTON JAMES E
IPC: C12Q1/68
Filed: 1992-06-18
Granted: 1999-08-31
Abstract: The present invention describes a polymer composition effective to bind in a sequence-specific manner to a target sequence of a duplex polynucleotide at least two different-oriented Watson/Crick basepairs at selected positions in the target sequence. The composition includes an uncharged backbone with 5- or 6-membered cyclic backbone structures and selected bases attached to the backbone structures effective to hydrogen bond specifically with different oriented base-pairs in the target sequence. Also disclosed are subunits useful for the construction of the polymer composition. The present invention also includes methods for (i) coupling a first free or polymer-terminal subunit, and (ii) isolating, from a liquid sample, a target duplex nucleic acid fragment having a selected sequence of base-pairs.