baber/WOPTO huggingface dataset:
Patent NO-178467-C (NO)
Inventor: PATT RUDOLF
IPC: D21C1/04
Filed: 1992-03-23
Abstract: PCT No. PCT/EP90/01622 Sec. 371 Date May 18, 1992 Sec. 102(e) Date May 18, 1992 PCT Filed Sep. 25, 1990 PCT Pub. No. WO91/05102 PCT Pub. Date Apr. 18, 1991.In a process for manufacturing chemo-mechanical and/or chemothermal-mechanical wood pulps, raw materials containing lignocellulose, such as wood shavings, wood chips, pre-ground wood or sawdust, are first impregnated with an aqueous alcoholic SO2 solution and then heated to a temperature between 50 DEG  and 170 DEG  C. for a period of 1 to 300 minutes. The wood shavings are then ground to the desired degree of fineness in a defibrinating device. The process makes it possible to achieve up to 50% reduction in grinding energy in comparison with known chemothermal-mechanical processes.
Patent AU-779483-C (AU)
Title: Composite material
Inventor: WILFORD-BROWN JACQUIN HILARY
IPC: B32B7/04
Filed: 1999-10-08
Granted: 2006-03-23
Abstract: A composite material comprises a first layer and a second layer, said layers being bonded together, wherein said first layer comprises 40 - 95 % by weight of an acrylic polymer formed from a monomer comprising 60 - 100 % methyl methacrylate and 0 - 40 % of a vinylic comonomer and 5 - 60 % of a copolymer wherein at least 10 % of the monomer residues are (optionally substituted) styrene and said second layer comprises a thermoplastic polymer. The material is particularly useful for forming sanitary articles, e.g. shower trays by thermoforming. A preferred second layer material is HIPS.
Patent CA-2000155-C (CA)
Inventor: FORSYTHE NEIL C W
IPC: C09C3/10
Filed: 1989-10-04
Granted: 2000-02-29
Abstract: The present invention provides processes for the production of a pigment composition comprising: Ia) contacting a pigment, before or during its synthesis, with a water-immiscible carrier medium, arid then completing the pigment synthesis to produce a pigment composition comprising the pigment and the water-immiscible carrier medium, and isolating the product or, optionally Ib) contacting the resulting aqueous fully-synthesized pigment composition with an aliphatic organic acid and optionally a water-immiscible carrier medium; adjusting the pH value of the mixture so obtained to below 7.0; and then adjusting to the pH value of the mixture to a value above 7.0 thereby transferring the organic acid into the aqueous phase; and isolating a pigment composition comprising the pigment and the water-immiscible carrier medium, or II) contacting an aqueous conventionally fully-synthesized pigment slurry with an aliphatic organic acid and a water-immiscible carrier medium according to above step Ib).
Patent CA-2002455-C (CA)
Title: Tensioned tent structure and erection method therefor
Inventor: LYNCH JAMES P
IPC: E04H15/00
Filed: 1989-11-08
Granted: 1994-10-11
Abstract: ABSTRACT      A tensioned  tent structure includes  a  flexible covering  having  a  vertex portion  and  spaced  corner portions  and which has a selected geometrical shape  in the erect position.  The tent structure further includes an  anchor  for  securing each  corner  portion  to  the support  surface and a pole assembly that  supports  the covering  in  an erect state with the vertex  above  the support surface.  The pole assembly has an extension and contraction  mechanism to vary its effective  length  to apply upward force to the vertex portion thus tensioning the  covering to draw it taut. The broad method of  the present  invention thus contemplates the broad steps  of providing  such a flexible covering having a vertex  and corner  portions,  securing the corner portions  to  the support  surface,  positioning  a pole  assembly  in  an upright  position  between the support surface  and  the vertex portion and forcibly expanding the pole  assembly to  tension the flexible covering in a  taut  condition.          Preferably,  the tent structure has a base perimeter  in the shape of a regular polygon with the structure shaped generally  as  a  pyramid.  The covering  is  formed  of fabric  panels cut to enhance the effect  of  tensioning forces.  The invention also contemplates tent structures having a plurality of center pole assemblies.
Patent CA-2007329-C (CA)
Inventor: GRINDROD PAUL E
IPC: B65D75/32
Filed: 1990-01-08
Granted: 1999-10-05
Abstract: This invention pertains to a reclosable package having a body member, a base, a hermetic seal between the body member and base and snap-locking projections formed in the side walls of the body member and base.
Patent CA-2008897-C (CA)
Title: Apparatus for conveying travelable body
Inventor: KIUCHI NAOYUKI
IPC: B61B13/12
Filed: 1990-01-30
Granted: 1997-06-17
Abstract: The invention relates to a device for con-veying travelable bodies which are provided no driving source, on a fixed path.  A plurality of travelable bodies can travel on the fixed path while aligned substantially in close contact with each other.  Traveling power is transmitted to one of a plurality of travelable bodies which is posi-tioned on at least one end of the alignment.  The traveling power drives the travelable body with frictional force while pressing one side surface of the travelable body, and is transmitted to the travelable body while backing up the other side surface of the travelable body.  A device to trans-mit traveling power is arranged on only a part of the fixed path.
Patent CA-2012293-C (CA)
Inventor: KEYSER PAUL F
IPC: C09K3/10
Filed: 1990-03-15
Granted: 1994-09-27
Abstract: An EMI/RFI shielding gasket comprising a resilient elastomeric core enveloped with a fine, open format knit or braided wire mesh, and having a strip of pressure sensitive adhesive disposed lengthwise along a surface of the gasket.          This strip of adhesive allows the gasket to be removably fastened to an enclosure, circumventing the need for a metal clip and thus making the gasket lighter and less expensive than conventional gaskets.
Patent CA-2012834-C (CA)
Title: V-belt guide
Inventor: JENKINS MICHAEL J
IPC: A01D34/64
Filed: 1990-03-22
Granted: 1993-10-12
Abstract: V-BELT GUIDE Abstract of the Disclosure A V-belt guide is provided for the drive belt of a vehicle-implement combination wherein the implement is capable of vertical up and down floating movement relative to the vehicle.  The guide is positioned above the strands of the belt, just ahead of the drive pulley, and serves to restrict the angle at which the belt strands can enter into and exit from the drive pulley.  The guide takes the form of a plate having a gently curving surface around which the belt is guided into or out of the drive pulley.  Vertically projecting members are attached to the guide plate and restrict excessive lateral movement of the belt strands.
Patent CA-2013328-C (CA)
Title: Electronic baseball game method and apparatus
Inventor: BROMLEY ERIC
IPC: A63F9/24
Filed: 1990-03-29
Granted: 1995-03-21
Abstract: An electronic baseball game is presented which permits the human operators to input individualized attributes or statistical information relative to the batter, runner and pitcher based on real or fictionalized baseball players.  In a preferred embodiment, this statistical information is encoded as a bar code printed on a sticker.  In turn, the sticker is placed on the edge of a card, preferably a standard baseball card.  The bar code contains information as to the batting average, right or left handed batting and pitching, pitching speed, running speed and hitting power.  The statistical information on the bar coded card is then entered into the electronic baseball game by sliding the card through a slot containing a conventional photo optical bar code reader.  The statistical information is then used by the computer program in the game to regulate and interact with the playing activity of the human players.  Thus, in accordance with the present invention, a baseball card can act as a programmable means to enter supplementary information into an electronic baseball game to thereby effect the gameplay.  The electronic baseball game of the present invention also includes a scoreboard, liquid crystal display (LCD) playing field and a plurality of switches which allow the human player to select a desired type of pitch (e.g. change-up, off-speed or fast ball); to steal a base or pick-off a base runner; to send in a relief pitcher; to bunt or execute a double play and of course, to initiate the actual pitching and batting actions.
Patent CA-2016048-C (CA)
Title: Method for the production of potassium magnesium phosphate
Inventor: LOEBLICH KARL-RICHARD
IPC: C01B25/45
Filed: 1990-05-04
Granted: 1997-02-25
Abstract: A description is given of a process for the production of potassium magnesium phosphate hexahydrate by reacting calcium dihydrogen phosphate with potassium sulfate and a basic magnesium compound.
Patent CA-2025448-C (CA)
Title: Bootstrap drive for a switch power converter
Inventor: LESLIE ALEXANDER DUNCAN
IPC: H02M3/335
Filed: 1990-09-14
Granted: 1996-02-27
Abstract: An improved switch-mode power supply is disclosed having a direct current power source, a transformer with a primary winding, at least one secondary winding and a core, first and second switching transistors and series with the primary winding of the transformer and drive means for generating signals to switch on the switching transistors to complete a circuit through the direct current power source, the switching transistors and the primary winding. In the improved circuit, a connection is provided through a diode to complete a circuit through the first switching transistor and part of the primary winding on activation of the drive means, drawing energy from a junction between two reservoir capacitors in series.   The current from this circuit generates a field in the core of the transformer which is sensed by an auxiliary winding on the transformer connected to the second switching transistor.  The signal generated in the auxiliary winding switches on the second switching transistor, allowing a circuit to be completed through both switching transistors and the entire primary winding of the transformer.  In a further embodiment of the circuit particularly useful in push-pull converters, third and fourth switching transistors are also provided in series with the primary winding of the transformer to complete a second circuit through the direct current power source, the third and fourth switching transistors and the primary winding.   The drive means sends two series of pulse-width modulated  drive  pulses,  the  first  series switching on the first switching transistor in order to complete a circuit ultimately through the first and second switching transistors and the whole of the primary winding in one direction, and the second series of pulses, 180- out of phase from the first, to switch on the third switching transistor,  in order to ultimately complete a circuit through ths third and fourth switching transistors and thQ   whole of the primary winding in the opposite direction.  A rebalance winding  on the core of the transformer and related circuitry are also provided where necessary to replace  energy  drawn  from  the  junction  between  the reservoir capacitors to maintain the reservoir capacitors in balance.
Patent CA-2025753-C (CA)
Title: Method and apparatus for serial data flow control
Inventor: COPELAND JOHN A III
IPC: H04L12/56
Filed: 1990-09-19
Granted: 1994-07-12
Abstract: Method and Apparatus for Serial Data Flow Control A data flow controller (150). A serial communications card (11) provides an interface between a remote transmitter connected to a serial port connector (20) and a host device (10). The card (11) contains a UART (14) which has a buffer. A counter (151) counts the number of bytes received by the UART (14) since the last time that the host (10) read all the data in the buffer. If the number exceeds a predetermined portion of the buffer capacity the counter output (Q11) will go high, thereby disabling the counter and sending a control signal (DTR, RTS) to the remote transmitter to stop sending data. Once the host (10) has read all the data in the buffer the UART (14) provides a signal (-RXREADY) which resets the counter (151), thereby causing the output (Q11) to go low, thereby allowing the remote transmitter to resume sending data. The counter (151) is held in a reset state until the buffer has received at least one byte of data. Data flow control is therefore obtained without the intervention of the host (10).
Patent CA-2027475-C (CA)
Title: Semimounted reversible plow
Inventor: MONG OYVIND
IPC: A01B3/46
Filed: 1990-10-12
Granted: 1995-08-29
Abstract: A device, particularly for a semimounted reversible plow, wherein the plowing width of the plow can be varied, and wherein the plow comprises a carriage adapted to be pivotally supported on a traction vehicle and, at the rear end thereof, is equipped with a rear wheel.  The plow further comprises a plow frame whereto a number of sockets with plow bodies are pivotally mounted, a parallel strut being pivotally connected to the sockets.  At its trailing edge, the plow frame is pivotally and slidably connected to the carriage and, at its leading edge, the plow frame is in pivotal and displaceable connection with an arm on the carriage.  A strut is pivotally attached to the parallel strut and to a bracket displaceable on the arm, and controls the angular rotation of the plow bodies during plowing width adjustment, so that the width of the furrow from the foremost plow body becomes as large as the width of the furrows from the following plow bodies.
Patent CA-2031580-C (CA)
Title: General purpose low cost digital amplitude regulator
Inventor: KUTZAVITCH WALTER G
IPC: H03G3/02
Filed: 1990-12-05
Granted: 1994-03-22
Abstract: A General Purpose Low Cost Digital Amplitude Regulator Abstract Apparatus for digital amplitude regulation is disclosed, for use as a volume control or the like, utilizing pulse width modulation to control gain through the variation of the incremental resistance of a two terminal non-linear element, the resistance of which varies with current, e.g., a diode or diode like element. A stream of pulses, the duty cycle of which is variable and digitally controlled, is filtered to produce a quasi-continuously variable direct-current (DC) voltage. The DC voltage either directly or by providing a DC current regulates the gain of an amplifier that is amplifying the signal of interest by regulating the transmission characteristics of the diode. For low cost implementation in a system already employing a microprocessor or microcomputer the determinative duty cycle can be derived under software control and supplied as an output from a single latchable output pin. In an exemplary implementation, the incremental resistance of an ordinary silicon diode operated in accordance with the small signal model of a diode. Additionally, the use of an energy storing type filter allows the the continuous stream of variable duty cycle pulses to be momentarily interrupted so that a pin used for supplying the pulses can be used for the performance of additional functions without affecting the perceived volume level. (FIG. 1).
Patent CA-2035728-C (CA)
Inventor: TURNER JAMES E JR
IPC: C12M1/34
Filed: 1991-02-05
Granted: 2002-10-01
Abstract: An instrument and a sealable vessel for detecting the presence of microorganisms in a specimen, the vessel containing a liquid culture medium communicating with a sensor means containing an indicator medium therein. Changes in the indicator medium resulting from pH change or change in CO2 concentration in the medium are detected from outside the vessel.
Patent CA-2038022-C (CA)
Title: Restricted access opening for disposable sharps containers
Inventor: SHILLINGTON RICHARD A
IPC: A61B19/02
Filed: 1991-03-12
Granted: 1996-06-18
Abstract: A limited access closure cover for an opening in a top of  a  disposable  sharps  container  comprises  a  frame  for securing to the periphery of an open top of a container, an opening in the cover, the opening having the configuration of  a  cross  section axial view of the  syringe body,  and finger flanges on the syringe body for receiving the axial passage of the body of a hypodermic syringe when angularly oriented to conform thereto.
Patent CA-2047314-C (CA)
Title: Method of and apparatus for pumping particulate solids
Inventor: PONZIELLI GIUSEPPE
IPC: B29C48/04
Filed: 1991-07-17
Granted: 2002-10-22
Abstract: A method of pumping particulate solids that have an initial bulk density which is lower than its structural density; the method comprises providing a flow channel (12) having an inlet (120) and an outlet (129) and including (i) an annular drag flow channel segment (L1) formed between a stationary outer wall member (14) and a rotating circular inner wall member (16); and (ii) a straight channel segment (L2) formed between a first planar and stationary wall portion (148) and a second planar and stationary wall portion (182); the inlet (120) of rotary channel (12) is that of the drag flow channel segment (L1) while the outlet (129) of flow channel (12) is that of the straigth channel segment (L2); no axial cross-section of the flow channel (12) between the inlet (120) and the outlet (129) is smaller than the axial cross-section of the inlet (120); the particulate solid is passed through the flow chan-nel (12) so as to increase the initial bulk density and avoid-ing significant melting and/or thermal degradation of the particulate solid while in the flow channel (12).
Patent CA-2053681-C (CA)
Inventor: SMITH GRAHAM
IPC: A61B17/32
Filed: 1991-10-18
Granted: 2003-04-15
Abstract: A surgical device having a surgical element removably connected to a drive element so that drive torque is transmitted to the surgical element as the drive element rotates, while allowing the surgical element at least one degreee of freedom of motion relative to the drive element; a retaining element maintains the drive and surgical elements in torque-transmitting relation during operation of the device.
Patent CA-2054748-C (CA)
Title: Fat-like bulking agent for aqueous foods comprising microcrystalline cellulose and a galactomannan gum
Inventor: MCGINLEY EMANUEL JOSEPH
IPC: A23L29/238
Filed: 1990-05-16
Granted: 1999-07-27
Abstract: Microcrystalline cellulose intimately admixed with a galactomannan gum such as guar gum, in an aqueous medium and then dried, preferably by spray drying, forms a novel aggregate comprising a powder whose particles are spheroidal in shape. The resulting material may be used, that is, as a low-calorie fat-like material in certain foods. Optionally, a third, edible, component such as a lipophilic material, or a hydrophilic material, such as a proteinaceous material or a polysaccharide, or mixtures thereof, may be incorporated in this composition to enhance taste and/or other desired properties. When this composition, in colloidal form, is added to such foods as salad dressings or dairy products as a fat substitute, it imparts a fat-like mouth feel and consistency without the caloric value of fat. In a further embodiment of this invention it has been found that the spherical particles may be broken down under high energy shear conditions to form a fibrous material which, when dispersed in water, also imparts fat-like properties to foodstuffs.
Patent CA-2057506-C (CA)
Title: Laser trapping and method for applications thereof
Inventor: SASAKI KEIJI
IPC: H05H3/04
Filed: 1991-12-12
Granted: 2003-05-13
Abstract: This invention provides laser trapping designed to trap a microparticle or a group of microparticles by scanning at least a focused laser beam at high speed.        This laser trapping make it possible to control the formation of microparticles into a specified pattern according to the scanning form of the focused laser beam, fix and transport said pattern, and trap and manipulate the microparticles with lower index of refraction than that of a medium, or other photoreflective microparticles such as a metal.        Consequently, with increasing degree of freedom of processing and modification on various microparticles, the field of application expands.
Patent CA-2062236-C (CA)
Inventor: AKASHI SHUNJI
IPC: A44B19/26
Filed: 1992-03-03
Granted: 1995-11-21
Abstract: A slider pull tab, for a slide fastener, com-prising a main plate of metal having a cutout extend-ing from one edge to the center, and an ornamental plate of synthetic resin to be received in the cutout of the main plate.  The main plate has a hollow por-tion communicating with the cutout, and also a locking hole through one of opposite side walls defining the hollow portion.  The ornamental plate has a plug por-tion to be inserted into the hollow portion of the main plate, the plug portion having a locking claw to be resiliently locked with the locking hole.  The ornamental plate is exchangeable with another.
Patent CA-2069493-C (CA)
Inventor: WIENECKE HORST PAUL
IPC: A23L1/304
Filed: 1991-01-17
Granted: 1998-03-31
Abstract: Un produit de confiserie contenant un supplément minéral ayant des propriétés améliorées de biodisponibilité des minéraux et qui comprend une matrice constituée d'ingrédients de confiserie sans sucre dans laquelle sont distribuées, dans des régions discrètes multiples, une composition de supplément minéral et, toujours dans des régions discrètes multiples, une composition de bonbon dur contenant un agent de potentialisation comestible.
Patent CA-2074824-C (CA)
Title: Process for depleting viruses in solutions and for determining the depletion rate of the viruses
Inventor: NADER WERNER
IPC: C12Q1/24
Filed: 1991-02-06
Granted: 2001-04-17
Abstract: In order to remove viruses from organic material, the material to be purified is passed through a filter or a filtration unit, the removal rate of which has previously been determined, in such a way that the filtration unit is inoculated with viruses of the leviviridae family. The virus titer is determined before and after filtration which establishes the removal rate. By following up on the removal of a marker substance the virus removal can be controlled in the ongoing process.
Patent CA-2078472-C (CA)
Title: Absorbent article and a method of removing said article from an undergarment
Inventor: BEAL CHANTELLE MARIE
IPC: A61F13/56
Filed: 1992-09-17
Granted: 2002-04-02
Abstract: An absorbent article is disclosed along with a method of removing the absorbent article from an undergarment. The absorbent article has a liquid-permeable cover, a liquid-impermeable baffle, and an absorbent positioned therebetween to form a pad. The pad has a central portion, longitudinally-extending sides, and a pair of relatively stiff tabs extending laterally outward from the longitudinal sides. The pad has a body-facing surface and a garment-facing surface. The absorbent article further includes adhesive for securing the pad to the crotch portion of an undergarment. The adhesive is secured on the garment-facing surface of the pad and is present on each of the tabs. Release paper covers the adhesive.
Patent CA-2089154-C (CA)
Inventor: BAUM KEVIN L
IPC: H03L7/06
Filed: 1992-05-08
Granted: 1999-08-03
Abstract: Le procédé décrit par la présente invention consiste à produire un signal de contrôle automatique de fréquence optimale dans un appareil doté de plusieurs algorithmes adaptatifs, chacun ayant un signal de référence avec activation de fréquence associée. La première étape consiste à comparer la performance de chacun des algorithmes adaptatifs. Cette différence est introduite dans un comparateur (6), dans lequel elle est comparée à zéro. Ce signal delta modifie ensuite la fréquence (8) d'oscillateur contrôlée numériquement. Après plusieurs itérations, le décalage de fréquence est réduit pratiquement à zéro.