baber/WOPTO huggingface dataset:
Patent NO-174260-C (NO)
Inventor: KRANTZ NICOLAS
IPC: C08L101/00
Filed: 1989-10-12
Abstract: The invention is in the field of plastics and relates to grafted block copolymers. Another subject of the invention is the synthesis of these grafted block copolymers. They are obtained by grafting and radical polymerisation of a monomeric composition on backbone-polymers whose units exhibit a block distribution. The invention also relates to the use of these grafted block copolymers are blend emulsifying agents and their use for the manufacture of moulded or extruded articles, films, sheets, etc.
Patent CA-2000442-C (CA)
Title: Preparation of acyl chlorides
Inventor: HOHMANN ANDREAS
IPC: C07C51/60
Filed: 1989-10-11
Granted: 2000-09-19
Abstract: where R is C8-C30-alkyl, C8-C30-alkenyl or C8-C30-alkynyl, from a carboxylic acid of the general formula II    where R has the abovementioned meanings, and phosgene, COC1 2 (III), in the presence of a catalyst adduct of phosgene and N,N-dialkylformamide of the general formula IV    where R1 and R2 independently of one another are each C1-C3-alkyl, the reaction product I being obtained by phase separation, by a process in which II and III are used in essentially equimolar amounts and the phase containing the catalyst adduct is reused.
Patent CA-2014059-C (CA)
Inventor: KOIDE NAOYUKI
IPC: C08G63/60
Filed: 1990-04-06
Granted: 1996-10-29
Abstract: A cholesteric liquid crystal polyester containing an optically active group, constituted of the structural units: (A) -O-Ar-CO- where Ar is a bivalent aromatic ring having 6 to 12 carbons;          (B)   where the mark * denotes optical activity; (C) -O-R1-O-;          (D) -CO-R2-CO-; where R1 and R2 each represent a bi-valent aromatic ring having 6 to 18 carbons, a bivalent aliphatic chain having 2 to 16 carbons, or a bivalent alicyclic ring having 6 to 18 carbons. The liquid crystal polyester comprises 20 to 90 mole % of (A), 5 to 40 mole % of (B), 5 to 40  moles % of (C), and 0 to 30 mole % of (D), and has a reduced viscosity of not less than 0.2 dl/g at a temperature of 60°C at a concentration of 0.5 g/dl in a mixed solvent of phenol/tetrachloro-ethane (60/40 by weight). Such a liquid crystal polyester is moldable in a molten state, has high strength and high modulus of elasticity, exhibits less mechanical anisotropy, and exhibits selective reflection in the visible light region under a certain condition.
Patent CA-2015385-C (CA)
Title: Sliding window apparatus and method
Inventor: PLUMMER DAVID D
IPC: E06B3/46
Filed: 1990-04-25
Granted: 1995-04-11
Abstract: An improved apparatus and method of  sliding window construction  are  disclosed.    When  moving  in  an  open position, a sash member is guided for movement in a first plane generally parallel to the window frame opening.  When moving  toward closure,  the  sash  is guided by  rotatable glide members  that  simultaneously  transversely move  all four corners of the sash into closure under cam action of the  glides,  to  uniformly  compress  a  weatherstrip  seal around the entire perimeter of the sash.   The transverse movement between open and closed positions can be performed in a manner such that the general plane of the sash remains parallel  to  the  first  plane  throughout  the  transverse movement  phase.     Means  are  provided  for  retainably maintaining  the  sash  at  discrete  positions  along  the transverse path of the sash during closure.
Patent CA-2018316-C (CA)
Title: Hydroextractor for textile pieces
Inventor: HERNANDEZ ALEGRE JOAQUIN
IPC: D06F25/00
Filed: 1990-06-05
Granted: 1995-02-21
Abstract: A hydroextractor which is mainly useful to carry out the industrial dedusting, rinsing and centrifuging of rugs, comprises a hollow cylindrical body having holes in its surface.  The cylindrical body is rotated around its longitudinal axis by a drive motor connected to a shaft connected to the closed end of the cylindrical body.  The rotation of the cylindrical body is guided by pairs of rollers placed on its periphery and which rotate in individual annular roller paths.  The rollers are mounted by supports and, in turn, support the cylindrical body.
Patent CA-2019020-C (CA)
Title: Vulcanizable rubber compositions containing hydroxy aryl substituted monomaleimides
Inventor: SANDSTROM PAUL HARRY
IPC: C08L21/00
Filed: 1990-06-14
Granted: 2000-06-27
Abstract: The present invention relates to vulcanizable rubber compositions containing a methylene donor and a hydroxy-aryl substituted monomaleimide. The substituted monomaleimides may be used as a replacement for resorcinol and function as a methylene acceptor.      The vulcanizable rubber compositions exhibit improved rubber/reinforcement interaction for increased adhesion and tear in rubber. These vulcanizable rubber compositions also contain a vulcanizing agent.
Patent CA-2020934-C (CA)
Title: Aqueous suspension of hydroxyethylcellulose
Inventor: ZWARTBOL FLORUS
IPC: C08L1/28
Filed: 1990-07-11
Granted: 2003-04-08
Abstract: An aqueous suspension comprising 8 to 28%, by weight of the total suspension, of water-soluble hydroxyethylcellulose dispersed in an aqueous solution comprising 20 to 35%, by weight of the total potassium carbonate and water, of potassium carbonate, 0.2 to 0.8%, by weight of the total suspension, of a wetting agent having a HLB of 6 to 9, and 0.08 to 0.6%, by weight of the total suspension, of a water-soluble or water-swellable thickener; a process for preparing the same; and use of the same in a variety of applications, are disclosed.
Patent CA-2022526-C (CA)
Inventor: URUSHIBATA KENICHI
IPC: H01R12/61
Filed: 1990-08-02
Granted: 1996-09-03
Abstract: A molded circuit component for connecting to lead wires includes body and a protective cover.  The body includes a partition wall area having a plurality of housing grooves, partition walls, body notches, positioning projections and fastening pin reception apertures.  The protective cover includes a plurality of cover notches, recesses and fastening pins to correspond respectively with the body notches, positioning projections and fastening pin reception apertures.  Metal lines having connection terminals on their ends are embedded in the housing grooves.  Lead wires are positioned in the grooves so that the conductors of the lead wires are placed on, and attached to, the connection terminals.  The protective cover is then attached to the body.
Patent CA-2024239-C (CA)
Title: Apparatus for torch jet assisted spark ignition
Inventor: CHENG SHI-WAI S
IPC: F02P23/00
Filed: 1990-08-29
Granted: 1996-01-16
Abstract: Torch jet ignition is used to assist conventional spark ignition.  A small (0.5 - 1 cc) chamber in a spark plug has an orifice (0.1 - 0.2 cm diameter) adjacent the spark gap to emit a torch jet into the main combustion chamber to enhance the combustion.  The combustion is initiated by the conventional spark in the combustion chamber and the combustion ignites the torch jet.  In another embodiment, two spark gaps in series are used, one in the main combustion chamber and one in the torch chamber.
Patent CA-2032527-C (CA)
Title: Lytic peptides: their use in the treatment of microbial infections, cancer and in the promotion of growth
Inventor: JAYNES JESSE M
IPC: C07K14/00
Filed: 1990-04-10
Granted: 2002-07-02
Abstract: Novel synthetic lytic and proliferative peptides were designed and constructed to encompass the structural features associated with lytic and proliferative activity.      These compounds, along with the human .beta. fibrin signal peptide share structural and functional properties of the known lytic peptides. These peptides are effective agents in the treatment of microbial infections including gram negative and gram positive bacteria, fungus, virus, yeast, and protozoa, in the lysis of cancer cells, and in the proliferation of fibroblast and lymphocytes. Additional functions include synergy and use as general adjuvants and in the enhancement of wound healing.
Patent CA-2036267-C (CA)
Title: Mechanically variable transmission
Inventor: HERSCOVICI SAUL
IPC: F16H9/12
Filed: 1991-02-13
Granted: 1996-07-02
Abstract: A mechanically variable transmission is provided by a novel arrangement of sheaves in combination with a power ring which can be utilized with a planetary device to smoothly varying output speed from maximum rotational speed in one direction to maximum speed in the opposite direction while passing through or maintaining zero output speed or any other speed in a forward or reverse direction while the input speed is varied or remains constant.  The novel arrangement provides changes in the output speed over the entire range of engine power and under all load conditions since declutching is not necessary to shift gears allowing the engine to operate at a constant horsepower over the entire range of throttle settings and can enhance engine efficiency by allowing the engine to operate at the lowest possible speed and highest torque.  The infinitely variable speed transmission and engine can be controlled with a computer control to maintain the engine at full torque but the lowest possible speed while varying the infinitely variable transmission ratio to maintain a constant or desired ground speed.
Patent CA-2040040-C (CA)
Title: Web guiding system, particularly turning bar system for superposing slit paper webs received from a web-fed rotary printing machine
Inventor: HAJEK JOSEF
IPC: B65H23/32
Filed: 1991-04-09
Granted: 1995-01-03
Abstract: To selectively place web portions slit from a printed paper web with a left web portion above a right one over a right web portion above the left one, the parallel-arriving web portions are so guided through a turning bar looping of the right or left web about the turning bars, with superposition, which involves a 90° position change of the turning bars, and while maintaining the air cushion between the paper web and the turning bars, the level of the arriving web with respect to the first-encountered or passed over or looped about turning bar is controlled or so set that the web will engage the turning bar tangentially with the plane of the arriving web portion and delivery web portion parallel to each other, by, respectively, guiding the web portion either above the turning bar pair or from below the turning bar pair, upon 90° shift of the turning bar pair.  The respective height guidance can be done by either first guiding the arriving web portion in the appropriate direction or by positioning the level of the turning bars of the turning bar pair to meet the arriving web portion in accordance with the desired looping direction of the arriving web portion about the pair of turning bars.
Patent CA-2040118-C (CA)
Title: Used products management cabinet
Inventor: SHIELDS SIMON F P
IPC: A47B96/16
Filed: 1991-04-09
Granted: 1993-10-12
Abstract: ABSTRACT OF THE DISCLOSURE    The present invention is a used products management cabinet consolidating the household storage of recyclable, reuseable, compostable and disposable materials in a convenience and functionally attractive manner particularly compatible with existing community-based recycling programs which utilize large, mass-produced containers (commonly known in Ontario as "blue boxes") for the collection of recyclable and other materials from individual households.  The invention has a counter top surface, and a top drawer with allocated space for separate storage of used materials such as newspapers, plastic bags and for a compost container.  Particularly, it has a main cupboard compartment with a sliding recessible tray therein which operates by means of an arm connected pivotally to both the cupboard door and to the sliding tray; the tray is designed to receive and hold the above-mentioned recycling containers such as are in common use in community recycling projects. Also, onto the back of the closure of the second main  cupboard compartment is attached a frame suitable for holding removable disposable means for holding used products such as those that are not reuseable or recyclable. The invention may also have another cupboard for storage of other items such as returnable bottles. In one of its forms the invention has a hole in the front face of the top drawer allowing manual access to materials contained therein, such as plastic bags.
Patent CA-2047477-C (CA)
Inventor: HANSEN JAMES RICHARD
IPC: A22C13/00
Filed: 1991-07-19
Granted: 1998-04-21
Abstract: A sausage casing comprising an elongated cellulosic tube having less than about 100 wt. % moisture based upon the bone dry weight of cellulose and having first and second longitudinal portions, and a colorant or opacifier which is longitudinally and continuously dispersed throughout the wall of at least one of these portions to provide it with different optical properties which are useful e.g., for quality control and identification of color development, meat type and particle definition and/or to provide an attractive package appearance.  In a preferred embodiment, a sausage is encased where the surface area of the second portion is less than or equal to the first portion and these portions are visually different having measurable L,a,b and opacity values such that:   i)   an average opacity value of the first portion is at least about 0.5 greater than that for the second; or ii)  the difference in average opacity between the first and second portions is less than 10, and a difference of at least about 5 exists between the first and second portions in their L,a, or b values; or iii) there is a difference of at least about 10 in average opacity between the first and second portions, and the sum of the absolute values of a and b of the first portion is at least 10.
Patent CA-2052146-C (CA)
Title: Quick action bar clamp
Inventor: SORENSEN JOSEPH A
IPC: B25B1/02
Filed: 1991-02-14
Granted: 1996-01-23
Abstract: The present invention is directed to a bar clamp especially suitable for rapid and precise closure against a workpiece.  The clamp includes a fixed jaw and a movable jaw opposing the fixed jaw.  The movable jaw connects at one end to a slide bar which is movable to bring the movable jaw toward and away from the fixed jaw.  A one-way drive controlled by a trigger handle grip, realeasably engages the slide bar and advances the movable jaw toward the fixed jaw. Return motion of the movable jaw away from the fixed jaw is accomplished manually when the one-way drive is disengaged. A first braking lever which is biased to bind against the slide bar prevents reverse motion of the movable jaw away from the fixed jaw, except when the first lever is disengaged from the slide bar.  For return motion of the jaw the one-way drive and the first braking lever are disengaged.  The trigger handle advances the slide bar by driving a second lever which binds against a surface of the slide bar and moves the rod as the second lever moves toward the fixed jaw. The second lever is returned by spring force to its original position after each stroke of the trigger handle, the second lever sliding over the bar surface during its return motion.
Patent CA-2062561-C (CA)
Title: Cross-point type switch using common memories
Inventor: OHTA SHINJI
IPC: H04L12/931
Filed: 1992-03-10
Granted: 1997-03-04
Abstract: A cross-point type switch includes a plurality of basic elements arranged in rows and columns so as to form a matrix arrangement of the basic elements.  Each of the basic elements includes a plurality of input ports, output ports, expanded input ports and expanded output ports.  A write/read part is connected to a common memory and has the function of writing data into the common memory and reading out the data from the common memory.  A selector part selectively outputs either the data read out from the common memory or data from the expanded input ports to the output ports.  The expanded output ports are directly connected to the input ports.
Patent CA-2063285-C (CA)
Inventor: HIKATA TAKESHI
IPC: H01B13/00
Filed: 1992-03-18
Granted: 1992-09-21
Abstract: In a method of preparing an oxide superconducting wire comprising the steps of filling up raw material powder for an oxide superconductor in a metal sheath and rolling the same in this state, frictional force on surfaces of rolls employed for rolling is increased in the rolling step in order to improve denseness of the raw material powder, thereby improving the critical current density of the oxide superconducting wire.  In order to increase the frictional force, films having large frictional force are formed on the roll surfaces, a coating material is applied to the roll surfaces during rolling, or the roll surfaces are roughened, for example.
Patent CA-2065785-C (CA)
Title: Fiber optic cable monitoring system
Inventor: VOKEY DAVID E
IPC: G01M11/08
Filed: 1992-04-10
Granted: 2000-03-07
Abstract: ABSTRACT The invention provides a monitor for monitoring the condition of fibre optic communication cables. The system employs one or more of the optical fibres of a cable to monitor the cable structure for damage or kinks. By using two separate laser sources and simultaneously monitoring the optical losses at two distinct and separate wavelengths, the loss signature of the monitored fibre is determined, analyzed and related to the mechanical condition of the cable structure. To monitor splice points for moisture, a special optical splice sensor unit detects any penetration of water into the splice and transmits a coded alarm signal over the monitored fibre to the optical receiver. Every splice location is assigned a unique sensor code. The optical splice sensor is driven by moisture detection cell, which forms a single cell water activated battery. Water entering the monitored splice closure wets the tape, which activates the cell. The cell generates sufficient voltage and current to power timing, code generation and modulator circuits in the sensor unit for an extended period of time. The activated circuit drives a modulator which modulates the light travelling down the fibre. The modulated light is monitored at the equipment office and the address of the alarming sensor decoded.
Patent CA-2066074-C (CA)
Title: Rotating throat/air port ring assembly
Inventor: BUNTON JOE H
IPC: B02C15/00
Filed: 1992-04-15
Granted: 1996-06-25
Abstract: An improved rotating throat/air port ring assembly is described for use in a pulverizing mill of the type including a rotating bowl member in a housing.  The improved assembly includes (1) a vaned throat/air port ring element secured to the periphery of the bowl and including vanes which are tilted 20° to 40° from vertical,  (2)  an inclined liner extending around the bowl above the ring element, and (3)  a skirt extending outwardly and downwardly from the ring element to guide inlet air through the vaned throat/air port ring element.
Patent CA-2081145-C (CA)
Title: Apparatus for engaging thermoplastic strap in a friction-fusion welding system
Inventor: CHEUNG NELSON
IPC: B29C65/06
Filed: 1992-10-22
Granted: 1995-07-25
Abstract: A movable strap-engaging member is provided for being connected at a first pivot axis to a vibrator arm for accommodating pivot movement of the vibrator arm about the pivot axis while the movable strap-engaging member is pressing a first length of flexible thermoplastic strap against a second length such strap in an elongate strap-receiving path.  The movable strap-engaging member is reciprocated generally transversely of the path to effect a friction-fusion weld of the strap lengths.  The movable strap-engaging member has a configuration in which first and second centers of mass are spaced apart on a line that passes through the pivot axis and that is oriented generally perpendicular to the path.  The product of the square of the distance along the line between the pivot axis and the mass of the first center of mass is substantially equal to the product of the square of the distance along the line between the pivot axis and the mass of the second center of mass.
Patent CA-2081920-C (CA)
Title: Liquid carbon dioxide injection in exothermic chemical reactions
Inventor: WALLACE DAVID ERIC
IPC: C01B32/60
Filed: 1991-03-27
Granted: 1997-02-18
Abstract: The invention is directed to a method for car-rying out an exothermic chemical reaction with car-bon dioxide (15) in an aqueous environment (11). A fluid solution containing at least one chemical reactant which is exothermically reactive with car-bon dioxide is reacted with liquid carbon dioxide injected (31) at a pressure above its triple point of at least 60 psig.  The injection takes place under turbulent conditions (33) wherein the liquid carbon dioxide vaporizes.  The carbon dioxide vapor super-heats to approach the exothermic reacting tempera-ture which occurs between the carbon dioxide va-por and the chemical reactant during the exother-mic production of a chemical reaction product.  The flow rate of the liquid carbon dioxide can be con-trolled (23) to control the reaction temperature without the necessity of any cooling or heat ex-change apparatus.
Patent CA-2086517-C (CA)
Inventor: GOLDHABER RICHARD
IPC: A61J3/00
Filed: 1992-04-27
Granted: 2003-07-08
Abstract: Systems and methods of collecting blood cells use a first container (16) connected to at least three transfer containers (18, 26, 34). A filtration system (10) is provided with one transfer container (34), which ultimately serves as the storage container for red blood cells free of white blood cells. The two other transfer containers (18, 26) are connected to each other, one (18) of which is empty and one (26) or which contains an additive solution (S) for storage of red blood cells.      The empty transfer container (18) is used for storage of platelet concentrate, while the container (26) that originally contained the additive solution is ultimately used to store the platelet-poor plasma component. A portion of the additive solution (5) may be separately passed through the filtration system (10) after filtration of the red cells to flush additional red blood cells from the filtration device (40).
Patent CA-2089078-C (CA)
Title: Method and apparatus for stabilizing and simplifying an approach flow system for a paper-making machine
Inventor: KOHONEN RAIMO
IPC: D21D5/26
Filed: 1991-08-13
Granted: 1998-01-20
Abstract: An approach flow apparatus for causing pulp slurry to flow between a pulp slurry storage tank (1) and the forming wire (12) of a forming section of a paper making machine includes a pipe system (20) for conveying the slurry from the storage tank (1) toward the forming section for permitting the flow of the slurry; and a deaerating centrifugal pump (16) interposed in the pipe system (20) for causing the slurry to flow and for removing gas from the slurry, and for venting the removed gas to a location outside of the pipe system (20).
Patent CA-2096427-C (CA)
Title: Automatic code reading system having selectable long-range and short-range modes of operation
Inventor: ROCKSTEIN GEORGE B
IPC: G02B26/10
Filed: 1992-09-17
Granted: 1996-11-05
Abstract: Method and apparatus for automatically reading bar code symbols using an automatic hand-holdable bar code symbol reading device (2) comprising a housing (5) containing operative elements which provide an object detection field and scan field defined external to said housing (5). Such an arrangement detects the presence of an object, in the object detection field, by sen-sing the IR radiation reflected off of the object, irradiated by a source disposed in the housing (5). In automatic response of detec-tion of the object, the device detects the presence of a bar code in the scan field using a laser (28) disposed in the housing (5). Then in automatic response to detecting the bar code, the bar code is scanned and scan data signals are produced in response in order for bar code data to be read, collected and processed.
Patent CA-2098590-C (CA)
Inventor: WATANABE YOSHIHIRO
IPC: H04L47/80
Filed: 1992-11-16
Granted: 1999-10-12
Abstract: A correct admission decision can be made even when not relying upon traffic characteristics declared by a user.      With respect to each of established connections, traffic data are acquired (step 1016, 1022) and are Stored (step 1024). When a call request is issued (step 1002), an admission decision is made using the traffic characteristics (step 1010) if they are stored (step 1004).