baber/WOPTO huggingface dataset:
Patent CA-2093845-A1 (CA)
Title: Channel compression and dynamic repartitioning for dual mode cellular radio
Inventor: KAY STANLEY E
IPC: H04W24/00
Filed: 1993-04-13
Abstract: ABSTRACT     A cellular system uses dynamic repartitioning and channel packing to improve capacity without impacting quality. Dynamic repartitioning is employed to convert a carrier which operates, at one time, as an analog carrier to operate, at a later time, as a digital carrier in response to changes in offered traffic alternatively, a carrier which, at one time, operates as a digital carrier is converted to operate, at a later time, as an analog carrier in response to changes in offered traffic. Channel packing is used to allocate as many digital channels as possible to as few digital carriers as possible. In a preferred embodiment, both repartitioning and channel packing are implemented in response to call origination or call termination.
Patent CA-2096792-A1 (CA)
Title: Modulating method
Inventor: SHIMPUKU YOSHIHIDE
IPC: G11B7/00
Filed: 1993-05-21
Abstract: ABSTRACT OF THE DISCLOSURE         A method of modulating digital data to a variable-length code (d, k; m, n; r) for recording information on and reproducing the same from an optical disc.  The optimal range of a minimum run length d corresponding to the minimum number of successive same symbols is determined by a procedure which comprises a first step to determine the minimum S/N required for obtaining a desired error rate from the relationship between a bit error rate and the S/N when d = 0; a second step to obtain the relationship between a change of the numerical value d and that of the S/N by calculating, on the basis of the required minimum S/N obtained at the first step, the S/N loss caused due to the change of the numerical value d; and a third step to determine, from the relationship between the numerical value d and the S/N, the range of the value d corresponding to the S/N of the transmission characteristic dependent on an optical system and an optical disc.
Patent CA-2096872-A1 (CA)
Title: Apparatus for the production of hermetically coated optical fiber
Inventor: AIKAWA HARUHIKO
IPC: G02B6/44
Filed: 1993-05-25
Abstract: The present invention is directed to an apparatus for the production of a hermetically coated optical fiber in which a glass preform for an optical fiber is melt drawn in a melt drawing furnace to produce a bare optical fiber which is passed to a reactor where a feed gas is supplied. The bare optical fiber is coated with a thin carbon coating made from the feed gas using a chemical vapour deposition (CVD) method wherein the reactor comprises an upper portion to which the feed gas is supplied, a middle portion in which the CVD method is substantially carried out and a lower portion from which an exhaust gas is withdrawn, and a cross sectional area of the middle portion perpendicular to a longitudinal direction of the optical fiber is larger than that of the upper portion.
Patent CA-2096960-A1 (CA)
Inventor: BISHOP ARTHUR ERNEST
IPC: B24B5/36
Filed: 1991-10-28
Abstract: A machine for grinding the outer metering edge contours on the edges of the axially extending grooves of a power steering gear input-shaft (10) in which a substantially cylindrical grinding wheel (40) whose working surface is dressed parallel to the axis of the input-shaft (10) effects the grinding, the distance between the input-shaft (10) and the grinding wheel (40) being cyclically increased and decreased several times during each revolution of the input-shaft (10) in such a manner that each outer metering edge contour so ground has a form which is a mirror image of the form of at least one other outer metering edge contour around the outside periphery of the input-shaft (10), characterized in that the angular velocity of the input-shaft (10) is varied cyclically in a manner co-ordinated with the cyclic increase and decrease of the distance between the input-shaft (10) and the grinding wheel (40) thereby substantially reducing the peak rate of stock removal per unit time compared with the peak rate that would occur if the angular velocity were constant and equal to the mean value of the cyclically varying angular velocity.
Patent CA-2099900-A1 (CA)
Inventor: MORGAN WILLIAM E
IPC: A63B37/12
Filed: 1993-07-06
Abstract: ABSTRACT A method of restoring a used golf ball in which a small portion of the old cover is removed and a new layer of material added, which new layer includes dimples.  The new layer may be transparent with an indicia on its outer surface or on the outer surface of the remaining old cover.                                           38432.1
Patent CA-2100185-A1 (CA)
Title: Overshoe for cleated footwear
Inventor: COCKBURN IAN G
IPC: A43B5/18
Filed: 1993-07-09
Abstract: OVERSHOE FOR CLEATED FOOTWEAR  Abstract of the Disclosure An overshoe for wear over cleated footwear, such as golf shoes.  The overshoe has a flat bottom surface and a flexible upper for snugly engaging an exterior surface of the cleated footwear.   A plurality of pliable,  spaced-apart nibs  project  upwardly  from  the  overshoe  bottom surface.  The nibs are resiliently flexible to conform to different cleat configurations.  A rigid, upwardly project-ing rim extends along the perimeter of the overshoe bottom surface surrounding the nibs.   The rigid rim has a flat upper surface extending in a plane parallel to the overshoe bottom surface.  The pliable nibs and rigid rim support the shoe sole in an elevated position to prevent the cleats from penetrating into the overshoe bottom surface.
Patent CA-2100638-A1 (CA)
Inventor: LEIPONEN MATTI O
IPC: B01F3/04
Filed: 1993-07-15
Abstract: The present invention relates to an aerator device having a stator installed coaxially with a rotor. The stator is comprised of a plurality of flow chutes extending outwardly from the stator frame. The flow channel has a first portion that is closed at the top, and a second portion that is open at the top. The second open portion is a flow chute of a length which is advantageously at least 30% of the total length of the flow channel, thereby improving the aeration of the fluid being aerated.
Patent CA-2101009-A1 (CA)
Inventor: EGAN MICHAEL A
IPC: A01C1/04
Filed: 1993-07-21
Abstract: The present invention relates to a soil-less sand based root zone medium for the production of sod.  The present invention is also directed to a method for the production of sod using a soil-less sand based root zone medium and a sod mat produced by the method of the present invention.
Patent CA-2101542-A1 (CA)
Title: 2,4-diaminoquinazolines derivatives for enhancing antitumor activity
Inventor: COE JOTHAM W
IPC: C07D239/86
Filed: 1992-01-08
Abstract: 2101542 9214716 PCTABS00015 2,4-diaminoquinazoline derivatives as potentiators of chemotherapeutic agents in the treatment of cancer.
Patent CA-2107730-A1 (CA)
Title: Flotation process for purifying calcite
Inventor: HANCOCK BILL A
IPC: B03D1/01
Filed: 1993-10-05
Abstract: TITLE OF THE INVENTION           FLOTATION PROCESS FOR PURIFYING CALCITE                  ABSTRACT OF THE INVENTION Alkoxylated alkyl amines and alkoxylated alkyl guanidines are  excellent collectors when used in mineral froth  flotation  to  remove  quartz,  micaceous  minerals, chlorite, pyrite and other mineral impurities from finely ground  calcium  carbonate  to  control  tint,  color,  and abrasiveness.
Patent CA-2109516-A1 (CA)
Inventor: JANUSZ MICHAEL J
IPC: A61K38/04
Filed: 1992-04-21
Abstract: Novel compounds which are chemically linked inhibitors of the proteases Elastase and Cathepsin G prevent connective tis- sue degradation associated with neutrophil induced inflammatory disease.</SD OAB>
Patent CA-2110796-A1 (CA)
Title: Keratorefractive diamond blade and surgical method
Inventor: CASEBEER J CHARLES
IPC: A61F9/013
Filed: 1993-03-17
Abstract: A keratorefractive surgical blade (36) has opposing sides and first and second edges (31, 38) which intersect each other to form a point (42). The first edge is shaped to form a sharp cutting edge extending from the point (42) a predetermined distance shorter than the distance from the base of a surgical incision to Bowman's membrane, a portion of the first edge adjacent to the sharp cutting edge being dull relative to the cutting edge.
Patent CA-2110895-A1 (CA)
Inventor: DORSETT MICHAEL W
IPC: B21D39/02
Filed: 1992-09-17
Abstract: In order to provide a hemming press for automotive body panels which requires a small operating force and can be powered by, for example, an electric motor (46), a press tool (SU) is mounted on a mechanism which, as it approaches a final press position, is somewhat like a parallelogram with an elbow (P4) in one side (K2, K3) of the parallelogram. The elbow is straightened by a motor driven crank (C1) and linkage (K5) which also form a straightened elbow (P8). Furthermore, another side of the parallelogram is formed by a 2:1 lever (V1) which provides further amplification of the applied force. One corner (P5) of the parallelogram acts as a fixed pivot as the press approaches its final pressing position, but at other times that corner is movable and allows a cam arrangement (M1, M2) to lift the tool (50) well clear of the work-piece (28).
Patent CA-2113933-A1 (CA)
Title: Tar sands fines tailings remediation techniques
Inventor: LERCHER BARRY H
IPC: B03B9/02
Filed: 1994-01-21
Abstract: In 1973, while at the Suncor plant, north of Fort MacMurray to get oil for our SOLID OIL COMPANY, the head chemist, Gus Galbraith and senior manager Jerry Tostawin alerted us to their huge tailings disposal problem.  They suggested to us that we work on it and said samples would be sent down to Calgary.          Tostawin said, "the cheque book is open if you can solve this problem".  Since then the problem still exists.  Mine has been the only cheque book open and I still have the only solution to the problem that works!  Joe Kutasinski, my partner, died in September 22, 1979.          I settled matters with his family in 1980.  Since then I carried on alone.  My patent attorney Robert MacRae, who was very helpful and protective, passed away in June 1992.  Mr. Bill Howard of Calgary, the lawyer that formed our first company and partnership INTERNATIONAL FLUIDIZED SOLIDS is still my attorney, advisor, close confidant and best friend.  Because of the magnitude of the problem, it is now 70-80 times larger in volume than when we began.  I have aligned myself with a business associate that is interested and capable of making it all happen.  RUST REMEDIAL SERVICES INC., WASTE MANAGEMENT INC..,(which will be referred to as RUST REMEDIAL herein) of Oak Brook Chicago Illinois has the capacity to make this happen now.  I have held back from applying for patent protection as my patent attorney Bob MacRae, when we first went to see him in January 1974 said to wait until we could be on-site.  Until that time work was done by contract as only one company then years later a second company joined us in the problem of solving this environmental disaster.  Twenty years have gone by - still no known solution to the fine tailings problem.  Our solution still works and has stood the test of time.  To make it happen I still have to get on-site and be able to handle the volume.  WASTE MANAGEMENT INC. controllers of RUST REMEDIAL want to enter into a business arrangement with me and would prefer that I begin the patent application now.  WASTE MANAGEMENT INC. is the world's largest environmental service company.  I could not ask for a better relationship.    Together we can do the job.  We are beginning now.  This preparation of the original patent application is with the expectation that as development work proceeds, we are likely to be in a position to shift ground somewhat by way of supplementary disclosure or re-filing.
Patent CA-2114453-A1 (CA)
Title: Apparatus for continuously forcing an elongate and extrusile raw material into an extrusion pressure vessel
Inventor: YANO SADAHIDE
IPC: B21C27/00
Filed: 1994-01-28
Abstract: ABSTRACT OF THE DISCLOSURE     An  apparatus has first propellers (20)  and  second propellers  (21) alternating with the  first  propellers.   Each propeller has one or more helical biting edges (24a) protruding into a guide passage (28) through which a  raw material  (W)  advances.   The biting  edges  are  formed along an inner periphery of each propeller at a predeter-mined lead angle so as to bite an outer periphery of  the raw  material (W).    The apparatus further has  a  drive mechanism  for  rotating the first propellers (20)  in  a direction opposite to that in which the second propellers (21)  are driven.    The helical biting edges  (24a)  are inclined  such  that the raw material (W) may  be  forced towards  a  pressure vessel (2) by  all  the  propellers, notwithstanding  the  opposite directions  in  which  the first and second propellers are driven, so that a  strong thrust  is applied to the raw material,  without  causing any torsion of the material which is being forced towards the pressure vessel.
Patent CA-2116624-A1 (CA)
Title: Radiation-sensitive mixture and the production of relief structures having improved contrast
Inventor: FUNHOFF DIRK
IPC: G03F7/039
Filed: 1994-02-28
Abstract: Abstract of the Disclosure:  Positive-working radiation-sensitive mixtures, essentially consisting of (a1)    a water-insoluble organic binder which contains acid-labile groups and is rendered soluble in aqueous alkaline solutions by the action of an acid, or (a2.1)  a polymeric binder which is insoluble in water but soluble in aqueous alkaline solutions and (a2.2)  an  organic  compound  whose  solubility  in  an aqueous alkaline developer is increased by the action of an acid, and (b)     an organic compound which produces an acid under the action of actinic radiation, which additionally contain (c)     a strongly basic organic compound having hydrox-ide, alkoxide or phenoxide anions, are suitable for the production of relief structures having improved contrast.
Patent CA-2117513-A1 (CA)
Inventor: HALEY CHARLA S
IPC: C08K5/521
Filed: 1994-08-16
Abstract: A flame retardant, light stable composition, prepared from a polyolefin, a halogenated hydrocarbyl phosphate or phosphonate ester flame retardant, and an N-alkoxy hindered amine light stabilizer.  Suitable forms, in which the composition may be provided, include fibers, and fabrics prepared from such fibers.
Patent CA-2117696-A1 (CA)
Title: Liquid-dosing tube
Inventor: GUNDELSHEIMER PETER
IPC: B01L3/14
Filed: 1993-03-16
Abstract: A liquid-dosing tube is provided with marks for the level of liquid.  According to the invention, the opening of the dosing-tube is linked to a shortened inner tube and a space with a constant retaining volume is located between the closing-tube and the inner tube.
Patent CA-2120149-A1 (CA)
Title: Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube
Inventor: BINDER MANFRED
IPC: H01H33/66
Filed: 1992-09-11
Abstract: Abstract Multi-pole vacuum switch with a pole operating unit for each vacuum switching tube A multi-pole vacuum switch  (1) has,  for each vacuum switching tube (10), a pole operating unit (5) with a lever arrangement for changing the direction of movement produced by a drive device (3). In a casing (16) of the pole operating unit (5), two toggle levers (21, 22) are arranged, one (21) of which is connected to the operating plunger (12) of the vacuum switching tube (10) and the other of which is connected to a supporting lever (25) which acts on a contact pressure spring (32) via a pull rod (30). In the switched-on position, the toggle levers (21, 22) are close to dead centre. An adjustment device (40, 42) permits the toggle levers (21, 22) to be adjusted in relation to the supporting lever (25).
Patent CA-2125148-A1 (CA)
Inventor: RAMAN SIVA N
IPC: A61K9/20
Filed: 1992-11-02
Abstract: Composition servant à la libération prolongée d'un agent thérapeutique biologiquement actif, dont la matrice est composée d'un glucide transparent amorphe comprenant un glucide approprié et un agent retardant la recristallisation du glucide, ainsi qu'un agent thérapeutique biologiquement actif et une cire insoluble dans l'eau dispersée dans ladite matrice. Les agents thérapeutiques biologiquement actifs pouvant être incorporés dans la matrice en glucide transparent comprennent la prolactine, les hormones de croissance, les albumines sériques, les facteurs de croissance ou tout fragment biologiquement actif ou toute forme recombinante dudit fragment.
Patent CA-2128521-A1 (CA)
Title: Preparation of optically active aliphatic carboxylic acids
Inventor: KADKHODAYAN ABBAS
IPC: C07C51/487
Filed: 1993-01-08
Abstract: An improved process for the separation of enantiomers of a racemic mixture of certain aliphatic carboxylic acids or esters thereof is disclosed. The process involves: (i) forming a salt solution comprising said racemic mixture of a C1 to C6 linear or branched aliphatic carboxylic acid and an organic or inorganic base;  (ii) treating said salt solution with one-half molar equivalent of a chiral organic nitrogenous base having a base strength no stronger than said organic or inorganic base; and (iii) precipitating from the reaction solution formed in step (ii) the less soluble diastereomeric salt, the improvement being adding to the salt solultion of step (ii) an inert organic or inorganic base that is soluble in the salt solution.
Patent CA-2130912-A1 (CA)
Title: A multi-axial yarn structure
Inventor: MOOD GEOFFREY I
IPC: D03D13/00
Filed: 1994-01-07
Abstract: In a method of and machine for forming a non-woven bias yarn assembly (10) comprising two superposed non-woven bias yarn sub-assemblies, each yarn (11, 12) is transferred by a yarn transfer member (22) from an opening it occupies in a yarn guide member (21) to another opening in the yarn guide member (21) in such a manner that each yarn (11, 12) is caused in a succession of forward transfer steps to follow the yarn preceding it from one opening to another along a non-intersecting path until the yarn (11, 12) at a first end opening in the path arrives at a second end opening in the path located at the opposite end of the path and the yarn (11, 12) at the second end opening in the path arrives at the first end opening and then in a succession of return transfer steps to follow the yarn preceding it from one opening to another along the non-intersecting path in the opposite direction until the yarn (11, 12) from the second end opening in the path arrives at the first end opening and the yarn (11, 12) from the first end opening arrives at the second end opening. The forward and return transfer steps are then successively repeated.
Patent CA-2136259-A1 (CA)
Inventor: FODOR ANDREAS
IPC: E01B7/02
Filed: 1994-11-21
Abstract: A railroad track switch has tongue rails which pivot relative to fixed stock rails and rolls onto which the tongue rails move when pivoted away from the stock rails.  The rolls are carried at opposite ends in spring supports and each roll is mounted for level adjustments in the respective supports.  Outer ends of the spring supports are themselves mounted for back and forth adjustments towards and away from the stock rails.
Patent CA-2139573-A1 (CA)
Title: Yeast promoter and its use
Inventor: BOLOTIN MONIQUE
IPC: C12N1/19
Filed: 1993-07-06
Abstract: The present invention concerns DNA sequences comprising all or part of the K. lactis promoter gene PDC1 or a derivative thereof, and having transcriptional promoter activity. The invention also relates to the use of the sequences for the expression of recombinant genes.
Patent CA-2141021-A1 (CA)
Inventor: TRAHAN MICHEL
IPC: E02F3/76
Filed: 1995-01-24
Abstract: Dans les conduits souterrains miniers, la qualité de l'air est un élément primordial à la santé des travailleurs. Ainsi, il est important que le nombre de machines y circulant soit réduit au minimum, la productivité des travailleurs étant augmentée d'autant. Les niveleuses actuellement utilisées n'ont pas accès à certaines parties de ces conduits, telles que les chantiers. De plus leur coût d'acquisition et d'entretien est dispendieux. D'autre part, les appareils amovibles actuellement utilisés et fixés en-dessous de la machinerie, consistant en une lame verticale, sont trop volumineux par rapport à l'espace disponible entre les roues avant et arrières des machines minières, cet espace étant déjà utilisé à d'autres fins. De plus, la surface du sol desdits conduits étant trop cahoteuse, une lame y serait inutile puisque sa hauteur devrait sans cesse être ajustée. Ainsi la présente invention consistant en un appareil amovible fixé en-dessous des machines minières existantes anéantie le nombre de niveleuse dans lesdits conduits, augmentant la qualité de l'air et la productivité des travailleurs. Cet appareil fixé sous la machinerie minière facilite le nivelage des endroits inaccessibles aux niveleuses actuelles, cette machinerie étant déjà conçue pour s'y rendre. Par son profil bas, l'invention cadre parfaitement à l'espace disponible en-dessous desdites machines. De plus, par la position de ses ancrages, l'invention s'ajuste automatiquement aux conditions du sol. Enfin, l'appareil exige aucun entretien mécanique et coûte moins cher que les niveleuses usuelles.
Patent CA-2141436-A1 (CA)
Title: Treatment of Alzheimer's Disease and Modulation of Immune System with Delta-5-Androstenes
Inventor: LARDY HENRY A
IPC: A61P25/28
Filed: 1993-08-02
Abstract: Alzheimer's disease and immune deficiency disorders may be effectively treated by administering a therapeutic amount of a .DELTA.5-Androstene-3.beta.-ol-17-one having a C7 substituent selected from the group consisting of oxo, hydroxy and groups convertible thereto by hydrolysis.
Patent CA-2141442-A1 (CA)
Title: Power package for spa apparatus
Inventor: IDLAND CARSTEN H
IPC: A61H33/00
Filed: 1993-08-10
Abstract: Disclosed herein is a tub apparatus comprising a foamed, resiliently compressible, plastic tub wall having an inner side and an outer side, the tub having an interior to receive liquid, and ports extending through the wall. The tub apparatus further includes a plastic pack having a cavity formed therein for receiving, and protectively enclosing, a pump unit. A water circulation system comprising a tubular duct structure connects the pump unit with the ports for circulating water between the tub interior and the pump unit.
Patent CA-2143217-A1 (CA)
Title: Temporary pacing wire package
Inventor: ROSHDY CONSTANCE
IPC: A61B19/02
Filed: 1995-02-22
Abstract: A foldable package for a temporary cardiac pacing wire is disclosed.  The package has a plurality of panels connected along fold lines as well as holes and tab pockets  for  mounting  surgical  needles  and  electrode needles.  The package also has tabs and tab pockets for locking the package.
Patent CA-2143969-A1 (CA)
Inventor: DEMOORE HOWARD W
IPC: B41F22/00
Filed: 1995-03-06
Abstract: The circumferential support surface of a transfer cylinder is covered with a conductive, fluoropolymer layer secured beneath a protective, wash-free disposable flexible jacket covering.   The low friction properties of the conductive base covering permit free movement of the ink repellent,  flexible  jacket  covering  relative  to  the transfer cylinder surface. Electrostatic charges delivered to the flexible jacket covering by the printed sheet material are drawn away from the flexible jacket covering and are discharged into the transfer cylinder by the conductive base covering.