baber/WOPTO huggingface dataset:
Patent CA-2115652-A1 (CA)
Title: Apparatus for adjusting the creping conditions
Inventor: TRELSMO KARIN BIRGITTA
IPC: D21H23/00
Filed: 1992-08-18
Abstract: A creping doctor apparatus includes a creping doctor (4) hav-ing a doctor blade (5) with a working edge (6). The creping doctor (4) is pivotable around a rotational axis (12) formed substantially at the working edge (6) to permit adjustment of an impact angle (A) formed at the working edge (6) between an impact surface of the blade edge and the cylindrical surface (2) of a Yankee dryer (3), from which an adhering paper web (1) is to be creped off. The impact angle (A), con-trols the result of the creping operation, e.g. the caliper and/or the macrostructure of the soft crepe paper web produced, but wear of the working edge (6) gradually causes a change in the impact angle (A), and thereby, in the creping conditions. To maintain the desired calip-er and/or the desired macrostructure as far as possible it is necessary to compensate for the wear of the working edge (6) by pivoting the creping doctor (4) substantially around the working edge (6) so as to maintain the impact angle (A). Circularly arched guide means (20), which have a radius of curvature (R) starting from a desired location of said rotational axis (12) substantially at the working edge (6), are provided for guiding the pivotal movement of the creping doctor (4).      The disclosed apparatus is compact, oscillatable and mechanically stable and can readily be substituted for an existing conventional creping doctor.
Patent CA-2119032-A1 (CA)
Title: Method and apparatus for control of filtrate volume in a disc filter
Inventor: LUTHI OSCAR
IPC: B01D33/21
Filed: 1993-04-15
Abstract: A rotating disc filter has a plurality of discs, each made of a plurality of sectors (20) removably mounted on support structures (14) which are fixed on a rotating hollow shaft (16) into core drainage channels (18) of which, the sectors drain. The drainage and support structure has flow channels (55) designed to rapidly drain filtrate and to permit filtrate split between clear and fiber bearing fractions. Rapid drainage is made possible by a novel method and device for controlling fluid transit volume within the sectors.
Patent CA-2123125-A1 (CA)
Title: Conveyor trough apparatus for loading catalyst pellets into vertical, tubular reactors
Inventor: JOHNSON KELLY J
IPC: B01J8/06
Filed: 1992-10-30
Abstract: An apparatus and process are disclosed for loading flowable materials, specifically catalysts, into receivers, specifically multi-tube reactors, quickly, without bridging of the catalyst and with maximum control over the catalyst drop rate and, consequently, control over the packed density of the catalyst in the reactor tubes. The invention utilizes a specially designed conveyor trough having a polygonal cross section, preferably octagonal, to load reactors in a more rapid, consistent manner without bridging and with minimum catalyst breakage and dust production. The invention is particularly applicable to jacketed multi-tube reactors used in the production of vinyl chloride monomer (VCM), ethylene dichloride (EDC), vinyl acetate, acrylic acid, ethylene oxide, phthalic anhydride and maleic anhydride.
Patent CA-2127324-A1 (CA)
Title: Sport Racket with String Stabilization and Friction Coating
Inventor: CSABAI JULIUS S
IPC: A63B51/10
Filed: 1994-07-04
Abstract: A method is provided of stabilizing a sport racket strung with synthetic strings, such as nylon strings, and imparting  thereto  additional  friction  that  enables  to achieve improved ball control during play, which comprises: roughening the strings at least in the main hitting area of the racket; coating the roughened strings with a polymer capable of stabilizing the strings and providing the same with extra friction; and curing the polymer on the strings so as to produce an essentially permanent polymeric coating at least in the main hitting area of the racket. Also the improved racket treated in accordance with the above method is part of the present invention.
Patent CA-2128951-A1 (CA)
Title: Preparation of aromatic carboxylic acids
Inventor: HAGEN HELMUT
IPC: C07C51/275
Filed: 1994-07-27
Abstract: Preparation of Aromatic Carboxylic Acids Abstract of the disclosure: Preparation of aromatic carboxylic acids of the formula I            Ar(COOH)n (Ar = isoaromatic or heteroaromatic radicals, n = 1 to 4) by oxidation of a compound II                    Ar(CH3)n          II   using an oxidizing nitrogen/oxygen compound (III) in the presence of sulfuric acid and a vanadium compound (IV) at from 120° to 180°C in the liquid phase, in which for each mole of compound II present in the reaction mixture, from 20 to 100 mol% of vanadium compound (IV) are available for the oxidation.
Patent CA-2129447-A1 (CA)
Title: Elevated temperature dimensionally stable impact modified polyester with low gas permeability
Inventor: DALGEWICZ EDWARD J III
IPC: B29C49/00
Filed: 1993-02-03
Abstract: 2129447 9315146 PCTABS00024 Polyester composition with improved impact properties, improved oxygen permeability and improved dimensional skrinkage during heating. Impact modifiers are dissolved into a molten polyester to form a eutectic alloy. On slow cooling, the eutectic alloy of the invention freezes to form a mixture of particles of the impact modifier embedded in a matrix of the polyester. By controlling the solidification of the melt, the size and distribution of the precipitates from the melt can be controlled, which allows control of the mechanical properties. The precipitation can also be controlled either by homogenous nucleation or by heterogeneous nucleation through the addition of a nucleating agent or the introduction of a suitable surface for nucleation. The invention also provides a process of manufacturing the above polyester, an article comprising this polyester and a process for making this article. The crystalline polyester article is useful as a container for microwavable, ovenable and/or frozen foods, and has improved gas barrier properties, impact strength, and post-mold dimensional stability between -60 ·C and 200 ·C.
Patent CA-2131470-A1 (CA)
Inventor: BOJAR JAMES A
IPC: A01B1/06
Filed: 1994-09-06
Abstract: Disclosure  is  made  of  an  adjustable  pitch garden hoe tool as an article of manufacture wherein the pitch of the head assembly can be adjusted to control the dig or "bite" into the soil and comprises ferrule  legs  mounted  on  an  extended  handle  and adjustable pitch garden hoe tool head mounted on the ferrule  legs  and  a  compression  V  spring  mounted within the ferrule legs and arms of the compression V spring extending into pitch set slots and pitch set stops in vertical sides of the garden tool head and the  compression V  spring  to  reciprocate back  and forth  in  lengthwise  direction  to  reset  arms  in desired stop slots.
Patent CA-2134554-A1 (CA)
Title: Applicator for semisolid medications
Inventor: SKWAREK GARY M
IPC: A61M31/00
Filed: 1993-04-28
Abstract: 2134554 9321986 PCTABScor01 An applicator (10) includes a barrel (12) for containing a semisolid medicinal, the barrel including a large diameter cylindrical section (16), a small diameter cylindrical section (18) and an annular sloped transition section (20) that connects the large diameter cylindrical section and the small diameter cylindrical section, the sections being coaxial with each other, the small diameter cylindrical section including an inner surface defining an internal cavity for containing the medicinal, a first end (30) with a first opening (32) and equiangularly spaced, axially aligned evacuation channels (28) in the inner surface for venting air out of the barrel when the internal cavity is filled with the medicinal, and the large diameter cylindrical section includes a second opposite end with a second opening (24); a rubber plunger (58) for pushing the medicinal through the first opening, the plunger being slidably positioned in sealing contact with the inner surface of the small diameter cylindrical section; a plunger rod (86) connected with the plunger and contained within the barrel; a removable cap (40) for sealingly closing off the first opening and for applying a pushing force to the plunger rod when the cap is removed from the sealing relationship with the barrel in order to slidably move the plunger in the small diameter cylindrical section of the barrel to expel the medicinal from the first opening; and a connection assembly (36) for removably connecting the cap to the barrel such that the cap sealingly closes off the first opening.  The applicator is useful for introducing medicinals into body cavities.
Patent CA-2134898-A1 (CA)
Title: Compositions and methods for vaccination against coronaviruses
Inventor: MILLER TIMOTHY J
IPC: G01N33/569
Filed: 1993-05-07
Abstract: The present invention provides a chimeric coronavirus S protein useful in diagnostic, vaccinal and therapeutic compositions comprising two or more S protein fragments, said fragments being selected from the same or different coronavirus strains.
Patent CA-2136082-A1 (CA)
Title: A sliding partition containing rotatable louvres
Inventor: GRICE ELWYN N
IPC: E06B7/08
Filed: 1993-09-06
Abstract: A partition assembly comprises a number of louvre blades (11) which can be opened and closed by an activating means in the form of a push rod (19) which is concealed with the partition.
Patent CA-2136313-A1 (CA)
Title: Optical filter
Inventor: WILLIAMS JEFFREY
IPC: G02B5/22
Filed: 1993-05-20
Abstract: An optical filter for absorption of electromagnetic radiation of wavelength 532 x 10 -9m with excellent photostability pro-perties is provided by a polymeric host material such as polycarbonate incorporating the absorbing compound 5,10,15,20 te-trakis (4-methoxyphenyl)-21H,23H porphine palladium (II).
Patent CA-2137707-A1 (CA)
Title: Cap for gas outlet nozzles
Inventor: FLINTA FRANK J
IPC: F16L55/115
Filed: 1994-12-09
Abstract: A cap member for fitment over a gas outlet nozzle having a plurality of serrations on the exterior thereof, is disclosed. The cap member comprises a peripherally disposed main body portion having an inner surface and an outer surface, the inner surface defining a nozzle receiving recess, an open first end, a generally closed second end, and a lock member. The lock member has a projecting lock portion movable between a first locking position and a second unlocking position. When the projecting lock portion is in the first locking position, the projecting lock portion projects into the nozzle receiving recess so as to be in interfering relation with one of the plurality of serrations on the exterior of the gas outlet nozzle, so as to thereby lock the cap member in placeand preclude the cap member from being removed from the nozzle. When the projecting lock portion is in the second unlocking position, the projecting lockportion no longer projects into the nozzle receiving recess so as to no longer be in interfering relation with any of the plurality of serrations on the exterior of the gas outlet nozzle, so as to thereby permit the cap to be removed from the nozzle. The cap member further comprises an access passageway to permit access by a co-operating key member to the projecting lock portion of the lock member, to thereby allow the key member to contact and thereby move the projecting lock portion from its first locking position to its second unlocking position.
Patent CA-2137893-A1 (CA)
Title: Valve for sprayer
Inventor: SU CHENG-YUAN
IPC: B05B11/00
Filed: 1994-12-12
Abstract: A valve for a sprayer, especially for a sprayer to be connected with a small liquid container, provides the sprayer with improved spraying effect to both atomization of the sprayed liquid and sensitivity for the response by including:a first rod having a smaller diameter, a second rod located below the first rod and having a larger diameter in comparison with that of the first rod, a third rod located below the second rod and having a largest diameter, and a fourth rod located below the third rod and having a reduced diameter in comparison with that of the third rod; wherein a top end of the first rod is formed with a conic shape; an annularshoulder is formed between the first rod and the second rod, on which a plurality of teeth-like grooves are provided; another annular shoulder is formed between the second rod and the third rod, which is inwardly recessed to form an inwardly recessed annular groove; and an outer peripheral surface of the third is provided with plurality of axial liquid introduction grooves.
Patent CA-2138510-A1 (CA)
Title: Methods of inhibiting dysfunctional uterine bleeding
Inventor: KEOHANE PATRICK P
IPC: A61K31/38
Filed: 1994-12-19
Abstract: A method of inhibiting dysfunctional uterine bleeding comprising administering to a human in need thereof an effective amount of a compound having the formula   (I) wherein R1 and R3 are independently hydrogen,          -CH3,       , or        , wherein Ar is optionally substituted phenyl;          R2 is selected from the group consisting of pyrrolidine, hexamethylenemino, and piperidino; or a pharmaceutically acceptable salt of solvate thereof.
Patent CA-2141350-A1 (CA)
Title: Novel kojic acid derivatives
Inventor: YANG CHANG M
IPC: A61K8/00
Filed: 1995-01-30
Abstract: Disclosed  herein  is  novel  kojic  acid  derivatives represented by the following formula (I):       (I) wherein, R is a hydrogen atom or methyl group, having a strong activity of inhibiting tyrosinase, which is an enzyme involved in a melanin formation.    The compounds of the present invention show a stronger tyrosinase-inhibiting and radical scavenging activities, and has a low side effects to the human skin.
Patent CA-2142786-A1 (CA)
Title: Reduced open circuit voltage power supply
Inventor: CORRIGALL DON J
IPC: B23K9/09
Filed: 1995-02-17
Abstract: A method and apparatus for providing an ac signal to load terminals, where the signal has a reduced open circuit voltage is disclosed.  The apparatus includes an ac current source connected to the load terminals and an open circuit sensor.  A control circuit is connected to the source of ac current and to the open circuit sensor, and when the sensor senses an open circuit the control circuit causes the current source to provide a dc signal.  The dc siqnal is created by allowing the current source to provide a signal of only one polarity.  The polarity may be either electrode positive or electrode negative.  The current source may be either a phase controlled current source or an inverter.  The method includes the steps of sensing the presence of an open circuit at the load a pair of terminals and causing the ac power source to provide a half wave signal of only one polarity in response to the detection of an open circuit.
Patent CA-2144290-A1 (CA)
Title: Compact motor controller with an improved arrangement for disconnecting and withdrawing a drawout unit
Inventor: KLEINECKE JOHN D
IPC: H02B11/167
Filed: 1995-03-09
Abstract: A motor controller includes an isolation switch having a main power supply terminal and a first bolted pressure contact and a load receptacle having a second bolted pressure contact. The motor controller also includes a drawout unit having a line terminal and a load terminal, the line terminal for engaging the f first bolted pressure contact when the drawout unit is in an inserted position and the load terminal for engaging the second bolted pressure contact when the drawout unit is in the inserted position. The drawout unit rests on a drawer which is in turn supported by a pair of sliding rails.      A current transformer generates a sensing signal for monitoring purposes. The components are arranged in a compact design which requires significantly less space than conventional designs.
Patent CA-2145541-A1 (CA)
Inventor: HARDING CLIVE R
IPC: A61K8/00
Filed: 1993-08-30
Abstract: A composition for topical application to human skin in order to promote the repair of photo-damaged skin and/or to reduce or prevent the damaging effects of ultra-violet light on skin and/or to lighten the skin comprising retinol or a derivative thereof and a dioic acid.
Patent CA-2151361-A1 (CA)
Title: Laser demolding apparatus and method
Inventor: DAGOBERT HENRI ARMAND
IPC: B29C33/20
Filed: 1995-06-08
Abstract: An automated demolding apparatus for reliably and repeatedly mechanically separating contact lens mold portions of a mold assembly without damaging the contact lens formed therebetween. The mold assembly includes a first front mold portion having a central mold section with a surrounding flange, and a corresponding second back mold portion also having a central mold section with a surrounding flange. A molded contact lens is formed between the front and back mold portions, and the flanges of the front and back mold portions are spaced apart and parallel to each other. The demolding apparatus includes restraining fingers positioned between and on opposite sides of the spaced flanges of the first and second mold portions and against the flange of the first mold portion. A separating fixture includes separating fingers positioned between and on opposite sides of the spaced flanges of the first and second mold portions and against the flange of the second mold portion. Before demolding, the second mold portion is irradiated by a laser beam, which is absorbed thereby to cause a substantial temperature gradient between the second mold portion and the contact lens being demolded. The temperature gradient causes a differential expansion and shifting of the surface of the heated second mold portion relative to the surface of the lens to lessen the adhesion therebetween to assist in separation of the mold portions, while leaving the lens in the first mold portion. During demolding, the separating fixture is rotated relative to the restraining fingers to progressively separate and peel the second mold portion from the first mold portion.
Patent CA-2152152-A1 (CA)
Inventor: BERNARD RICHARD A
IPC: B42D25/378
Filed: 1995-06-19
Abstract: The printing of postage indicia and postage stamps wherein a portion of the ink used to print the indicia and/or stamps has the characteristic of changing color when exposed to moisture. By having an indicia that changes color upon such exposure,  one is able to determine if an attempt has been made to defraud the postal service by removing a tape upon which a postage indicia is printed from a mail piece and using the same on a second mail piece.
Patent CA-2156668-A1 (CA)
Title: Lengthwise adjustable forked boom for surfboards
Inventor: NAMUR MARC
IPC: B63B35/79
Filed: 1995-08-22
Abstract: The lengthwise adjustable forked boom for surfboards comprises two principal bars (1) bound by a forked boom head piece and two extension bars (3) telescopically adjustable in them, which are interconnected on the trailing ends by a forked boom tail piece. At the end of both principal bars (1) is a connecting bush (6) that extends beyond the bar ends, attached securely with a catch lever (7) that has locking bars (8) which lock into the corresponding adjustment holes (9) in at least one series of holes at equal intervals in the extension bars (3) when the lever (7') is closed.             The forked boom makes possible a closely stepped lengthwise adjustment of the bars for trimming the sails. The catch levers of the connecting bushes, which are attached securely to the ends of the principal bars, guarantee a safe locking of the principal bars into the extension bars at the bar length adjusted to the corresponding sail size when in the closed position with the locking bars locked into the holes in the extension bars and prevent a mutual turning of the principal and extension bars by torsional forces on the forked boom. The catch levers offer optimal bar lock safety against unintentional opening during sail maneuvering, especially at the necks.
Patent CA-2157866-A1 (CA)
Title: Isdn adapter board
Inventor: KOENZEN RALF
IPC: H04M11/06
Filed: 1994-03-08
Abstract: According  to  the  invention,  a  passive  ISDN adapter board is made compatible with a modem connected to the serial connectors by:  a serial controller known per se, as is normally used to connect an external data transmission   device;   an   ISDN   data   transmission controller  connected  to  the  serial  controller  and controlled by the CPU of the computeri  and an ISDN connection  controller  controlled by the  CPU  of  the computer and connected to the ISDN controller, without the  need  to  use  the  INT-14-H  interface  for the evaluation process.  This solution is based on the idea of simulating an externally connected data transmission device  with  the  aid of  the processor  of  the  data terminal device.
Patent CA-2161777-A1 (CA)
Title: Methods and compositions using optically pure (+)-zileuton
Inventor: GRAY NANCY M
IPC: A61P17/00
Filed: 1994-05-10
Abstract: Methods and compositions are disclosed utilizing optically pure (+)- zileuton for the treatment of asthma, rheumatoid arthritis and ulcerative colitis in humans while substantially reducing the concomitant liability of adverse effects associated with the racemic mixture of zileuton. (+)-Zileuton is an inhibitor of 5-lipoxygenase and is therefore useful in the treatment of other conditions related to elevated leukotriene levels. (+)-Zileuton is also an antioxidant and is therefore useful in treating or preventing artherosclerosis.
Patent CA-2162035-A1 (CA)
Title: Structure tubulaire de preforme ou de matrice pour le tubage d'un puits
Inventor: BERTET ERIC
IPC: E21B33/127
Filed: 1994-04-28
Abstract: Cette structure tubulaire comprend au moins un tressage de mèches souples (10) composées de fibres (100) qui s'entrecroisent avec un certain jeu, de sorte qu'elle peut s'expanser radialement tout en se restreignant en direction axiale sous l'effet de l'application d'une surpression à l'intérieur de la préforme ou de la matrice.
Patent CA-2163146-A1 (CA)
Title: Press pads for high-pressure and low-pressure presses
Inventor: HENNECKEN BRUNO
IPC: B30B15/06
Filed: 1995-11-17
Abstract: A press pad made of asbestos-free material for use in different types of high-pressure and low-pressure presses. The press pads of the instant invention are made from yams composed of an aromatic polyamide and metal filaments in combination with a plurality of heat resistant filaments. The press pads can be used in presses having short cycle and multiplaten presses for the lamination of particle-boards with melamine, or in high pressure presses for the production of high-pressure laminates.
Patent CA-2166410-A1 (CA)
Title: Improvements in or relating to processing of smoking material
Inventor: CUNNINGHAM WILLIAM
IPC: A24B3/18
Filed: 1994-06-23
Abstract: A process for treating smoking material such as tobacco, comprises heating smoking material having a moistule content of from 5 to 75 % at a temperature of from 70 to 220 °C at about or above atmospheric pressure in the presence of air and reducing the pressure on the heated smoking material at a rate sufficient to expand the smoking material.
Patent CA-2167279-A1 (CA)
Title: Process for the manufacture of a zeolite
Inventor: BUSKENS PHILIP LUC
IPC: C07B41/00
Filed: 1994-07-23
Abstract: In the manufacture of a substituted Beta zeolite, a high ethene pressure, is used advantageously accompanied by synthesis gel ageing and low aluminium content.
Patent CA-2168279-A1 (CA)
Title: Pneumatic tire having improved pitch sequencing
Inventor: WESOLOWSKI PIOTR JANUSZ
IPC: B60C11/00
Filed: 1996-01-29
Abstract: The present invention relates to a pneumatic tire having a tread with a plurality of load-supporting elements placed above the circumference of the tire. The tread is characterized by a pitch sequence comprising (a)  from 55 to 98 total pitches; (b)  only five different pitch lengths; (c)  a ratio of the longest pitch to the shortest pitch length ranging from 1.57 to 1.58;     (d)  there being a constant increment in pitch length in the five different pitch lengths as one progresses from the shortest pitch length to the longest pitch length.