baber/WOPTO huggingface dataset:
Patent CA-1310767-C (CA)
Title: Apparatus and method for closed-loop control of reactor power
Inventor: BERNARD JOHN A
IPC: G21C7/36
Filed: 1987-09-10
Granted: 1992-11-24
Abstract: Closed-loop controller for altering the power level of nuclear reactors in a safe manner and without overshoot. Apparatus is provided for moving a control element such as a control rod or for adjusting the concentration of a soluble neutron absorber (chemical shim) for altering the nuclear reactor power level. A  computer computes at short time intervals the two functions [.rho.(t) - ¦~c¦/.lambda.'e(t)]¦~c¦ and .tau.(t)ln(P F/P(t)).  The direction of motion of the control element is altered when these two functions become equal thereby resulting in the attainment of a new power level without overshoot. In a preferred embodiment, these two functions are computed at intervals of approximately one second.
Patent CA-1302197-C (CA)
Title: Detergent composition
Inventor: HULL MICHAEL
IPC: C11D1/74
Filed: 1987-09-30
Granted: 1992-06-02
Abstract: ABSTRACT    A detergent composition contains (i)   an anionic detergent active material; (ii)   polyvinyl pyrrolidone; and (iii)  a nonionic material or a mixture of nonionic materials, the nonionic material or its mixture having an HLB of not more than 10.5 The polyvinyl pyrrolidone and the nonionic material are present to reduce redeposition of suspended soil onto fabrics washed with this composition.
Patent CA-1319903-C (CA)
Inventor: YOSHIOKA KEIICHI
IPC: C25D5/02
Filed: 1987-10-01
Granted: 1993-07-06
Abstract: ABSTRACT OF THE DISCLOSURE       An exterior stainless steel sheet is provided comprising a stainless steel substrate and a coating layer formed on one surface of the steel substrate from Al, Al alloy, Zn or Zn alloy to a thickness of 0.1 to 70 µm, preferably 1 to 70 µm.  A Zn or Zn-Ni alloy plated stainless steel strip is prepared by degreasing a stainless steel strip, substantially activating the surface of the strip, and electroplating the strip in a zinc or zinc-nickel alloy plating bath at pH 3.5 or lower.  During electroplating of one side, the other side of the strip not to be plated is covered with a protective film.  A stainless steel sheet comprising a stainless steel substrate and a coating layer formed on one surface of the steel substrate from Zn or Zn alloy to a thickness of 0.1 to 50 µm, preferably 1 to 50 µm is useful in preparing welded pipes.
Patent CA-1288490-C (CA)
Title: Electrical cable connector
Inventor: TOMER JITENDRA P
IPC: H01R13/28
Filed: 1987-10-02
Granted: 1991-09-03
Abstract: ABSTRACT OF THE DISCLOSURE           An electrical cable connector configured to physically and electrically mate and connect with an identical such electrical cable connector.  The cable connector includes both male and female connectors corresponding to each circuit lead of the cable configured to mate and electrically connect with the female and male connectors, respectively, corresponding to like circuit leads of another identical cable connector.  The male connector is electrically insulated from its associated circuit lead when the cable connector is not electrically connected to a second cable connector and is electrically connected to the circuit lead when the cable connector is electrically connected to a second cable connector.  m e male connector is preferably a pin and the female connector a socket comprising two terminals electrically insulated from one another.  The male pin is electrically connected to one of the terminals of the female socket.  The other terminal of the female socket is electrically connected to the circuit lead with which the male pin and female socket are associated.  The circuit between the pin and the circuit lead is completed through the associated socket when the pin of an identical such cable connector makes contact with both terminals of the socket.
Patent CA-1296678-C (CA)
Title: Food container and method of manufacture
Inventor: WENDT DAN J
IPC: H05B/
Filed: 1987-10-15
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE    A food container for use in a microwave oven is disclosed.  The container contains a plurality of food substances, and employs a metal shield to shield at least one of the food substances from microwave radiation. Arcing and other problems associated with the use of metal shielding are avoided by proper selection of the geometry of the metal shield.  The metal shield is preferably looped in a manner. which provides some electrical inductance, and the ends of the metal shield are over-lapped and separated by a dielectric material to provide some electrical capacitance.  The geometry of the shield is selected so that the inductance and the capacitance in effect form a "tuned circuit" which minimizes problems associated with resonance and which eliminates arcing.
Patent CA-1299983-C (CA)
Title: Passivation of gallium arsenide surfaces
Inventor: GMITTER THOMAS J
IPC: H01L21/314
Filed: 1987-10-20
Granted: 1992-05-05
Abstract: Abstract of the Disclosure A method of passivating the surface of a gallium arsenide substrate by cleaning the gallium arsenide substrate in an etching solution and depositing a sulfide film on the substrate.  The step of depositing the sulfide film is preferably performed by spin-on of a sodium sulfide solution, followed by drying or annealing.  The resulting passivated surface exhibits superior surface recombination velocity characteristics compared to prior art passivation techniques, thereby making possible superior solid state device operating characteristics.
Patent CA-1299204-C (CA)
Title: Process and apparatus for hydrocarbon conversion
Inventor: BARNES PETER H
IPC: C10G67/00
Filed: 1987-11-09
Granted: 1992-04-21
Abstract: A B S T R A C T          PROCESS AND APPARATUS FOR HYDROCARBON CONVERSION      A process for catalytic conversion of hydrocarbons (e.g. hydroisomerization of unbranched paraffins) by passing a hydrocarbon-containing feed stream at hydrocarbon conversion conditions sequentially in opposite directions through at least part of a zone containing hydrocarbon conversion catalyst and subsequently through at least part of a zone containing adsorbent material capable of adsorbing unconverted hydrocarbons and sequentially passing a sweep fluid in the same direction as said feed stream through at least part of said zone containing adsorbent material.     The invention further relates to an apparatus suitable for carrying out said process.
Patent CA-1301853-C (CA)
Title: Method and apparatus for ablating and removing cataract lenses
Inventor: BATH PATRICIA E
IPC: A61F9/011
Filed: 1987-12-17
Granted: 1992-05-26
Abstract: METHOD AND APPARATUS FOR ABLATING    AND REMOVING CATARACT LENSES               Abstract of the Disclosure A method and apparatus for removing cataracts in which a flexible line (26) preferably 1 mm or less in diameter is inserted through an incision into the anterior chamber until its end is adjacent the cataract.  Coherent radiation, preferably at a frequency between 193 and 351 nm, is  coupled to the cataract by an optical fiber (28) in the line (26). An irrigation sleeve (30) provided about the fiber (28) and an aspiration sleeve (32) extending partially around the irrigation sleeve (30) conduct irrigating liquid to and remove ablated material from the anter-ior chamber and form with the optical fiber (28) the flexible line (26).
Patent CA-1309054-C (CA)
Title: Conveyor chain assembly
Inventor: HODLEWSKY WILLIAM G
IPC: B65G17/38
Filed: 1988-02-10
Granted: 1992-10-20
Abstract: Abstract of the Invention The conveyor chain assembly is made of multiple rows of pivotally connected link modules.          Each module has spaced link ends which project between the link ends of the module in the adjacent row.  The joint between modules in a row is straddled or bridged by a module in the adjacent cow to give a bricked lay-up.  Each of the modules on the left side of the conveyor has a solid link end so the pivot rod abuts the inside of the link end.  The other end of the pivot rod lies just inside of a spring plug mounted in the arm or link end on the right side module.  The modules cannot be end-for-ended and assembled.  They must be assembled correctly.     Certain link ends are wider than the others to require proper assembly to the modules in the adjacent row and to distribute drive loads over a greater area.  Both sides of the conveyor are essentially plush or smooth.
Patent CA-1285527-C (CA)
Title: Salt and pepper shaker
Inventor: CIACCIO RICHARD J
IPC: B65D47/08
Filed: 1988-03-07
Granted: 1991-07-02
Abstract: ABSTRACT OF THE DISCLOSURE       A two-chambered dispensing receptacle with a pair of closure assemblies integrally molded therewith. Each closure assembly includes a shaker top integrally hinged to the wall of one chamber at diametrically opposed portions of the receptacle.  Each closure assembly further includes a closure lid integrally hinged to the shaker top for pivotal movement relative thereto.  Each shaker top selectively closes and seals the adjoining chamber with the associated closure lid overlying the shaker top of the other closure assembly and selectively sealing dispensing openings defined therethrough.
Patent CA-1340897-C (CA)
Title: 1,2,4-trioxane derivatives
Inventor: JEFFORD CHARLES W
IPC: C07D493/04
Filed: 1988-03-31
Granted: 2000-02-15
Abstract: 1,2,4-trioxane derivatives of formula: (see above formula) wherein the subscript n is equal to 0 or 1; the symbol Z represents an epoxide oxygen atom at the 5,6 or 6,7 positions, or a pair of electrons forming a double bond at the 5,6 or 6,7 positions; each of the symbols Ar1 and Ar2, being the same or different, represents an aromatic group which is optionally substituted; each of the symbols R1 and R2, being the same or different, represents a linear or branched alkyl group, which is optionally substituted, or R1 and R2, taken together with the carbon atom to which they are attached, form an alicyclic group which is optionally interrupted by one or more oxygen, sulphur or nitrogen atoms and which group is optionally substituted with one or more alkyl or aryl groups, or one or more functional groups; and Y is hydrogen and X represents a hydrogen atom, a hydroxy group, a hydroperoxy group, an oxo group or a carbonyloxy group selected from o-fluorobenzoyloxy, isopropoxycarbonyloxy and isopentanoyloxy; are of use in the treatment of tropical diseases including malaria, and have other physiological activities.
Patent CA-1294380-C (CA)
Title: Display system
Inventor: HARRISON ROY B
IPC: G06T1/60
Filed: 1988-03-31
Granted: 1992-01-14
Abstract: DISPLAY SYSTEM                     ABSTRACT      The present invention relates to a display system comprising a display buffer 36 data indicative of picture elements with a facility for moving an image from a source to a destination position by manipu-lating the data in the display buffer. The present invention provides this facility by having means for reading, processing and Storing bursts of display buffer words.  In the described embodiment of the invention control logic 44 first causes a burst of display buffer words containing bytes representative of the image in its source position to be read out from the display buffer. These words are passed through a barrel shifter 66, where the word is rotated as necessary and stored in appropriate byte locations in a FIFO buffer 68. The FIFO buffer has the capability to write to two word addresses simultaneously so that data words are created in the FIFO buffer which contain data in the correct alignment for writing unmodified into the corresponding display buffer words. When the source has been completely read or the buffer is full (whichever comes first) the display adapter automatically switches from reading to writing and stores the burst of data words it has in its FIFO buffer into memory at the destination locations.
Patent CA-1290555-C (CA)
Title: Fastening device
Inventor: WARD CLINTON G
IPC: B65D63/00
Filed: 1988-04-05
Granted: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE A fastening device suitable for retaining a power cord, speaker cable, tubing or the like in bundled or coiled form is made of VelcroTM materials. An elongate base strip has one face covered with hooks. Three VelcroTM fastener segments are adhered to the opposite face of the base strip, one segment adjacent to one end of the strip, another segment adjacent to an opposite end of the strip, and an intermediate segment. The intermediate segment and one end segment are formed with complementary hook and fibrous loop fasteners which permit the fastening device itself to be secured, for example, to a power cable. The remaining end segment is formed with fibrous loop fastening material. When the power cable is bundled or coiled, the remaining segment of fibrous loop fastening material is engaged with the hooks covering the opposite face of the base strip at a location which accommodates the size of the bundle or coil to be secured.
Patent CA-1320048-C (CA)
Title: Fibrillation device for the manufacture of mineral wool
Inventor: NURMI TOM E E
IPC: C03B/
Filed: 1988-04-06
Granted: 1993-07-13
Abstract: Abstract The invention relates to a fibrillation device for the manufacture of mineral wool.            According to known technology the mineral wool melt runs down onto the peripheral surface of a spinning wheel from which the melt is thrown further to the following (3) and from there to the following spinning wheel. There are commonly four spinning wheels. As a result of the centri-fugal force the melt is thrown out in the form of fibres which are subjected to a strong blast of air, the purpose of which is to cool the fibres before binder is added to them and to transport them to the receiving conveyor. The stream of air is conducted through an air gap (7) which is furnished with oblique guide vanes in order to impart to the stream of fibres an axial and tangential velocity com-ponent in the direction of rotation.            According to the invention the air gap (7) is so formed as to impart to the stream of fibres a radial velocity com-ponent directed outwards in addition to a tangential velo-city component in the direction of rotation. By this means the air stream meets the peripheral surface of the spinning wheel at an oblique angle and forms a conically shaped curtain around the peripheral surface of the spinning wheel. The oblique air blast is gentler to the fibre formation in progress and it does not cool down the melt ring (6), which promotes the fibre formation and reduces the formation of beads.
Patent CA-1322225-C (CA)
Inventor: SEIDL HANS
IPC: A61N1/36
Filed: 1988-04-13
Granted: 1993-09-14
Abstract: ABSTRACT OF THE DISCLOSURE            An equipment for the treatment of lymph blockages, hyperacidic musculature and the like, containing a switching circuit to generate a series of voltage impulses and two contact devices to apply these voltage impulses to a to-be-treated part of the body in order to achieve a mechanical vibration stimulation, is provided so that the switching circuit generates a series of high voltage impulses and contains a current limiting circuit, and that one of the contact devices has a high transfer resistance to human skin, while high filed intensities at higher mechanical loading capacity should be achieved.
Patent CA-1314827-C (CA)
Title: Temperature-controlled tank container
Inventor: GERHARD HELMUT
IPC: B65D88/74
Filed: 1988-05-03
Granted: 1993-03-23
Abstract: TEMPERATURE-CONTROLLED TANK CONTAINER            Abstract In a temperature-controlled tank container, the cylindrical tank shell is surrounded at a uniform close spacing by an insulating jacket, wherein the space between tank surface and insulating jacket in divided into helical flow passageways by means of division webs which extend along helical paths and also have the function of reinforcing the tank shell otherwise afforded by reinforcing rings.  Said passageways are in communication with inlet and outlet portholes provided on one end face for a temperature control medium which flows around the entire tank surface.
Patent CA-1338326-C (CA)
Title: Compounds for the treatment of alzheimer's disease
Inventor: DAVIS BONNIE
IPC: C07D487/10
Filed: 1988-06-16
Granted: 1996-05-14
Abstract: Compounds of formula I       are of use in treating Alzheimer's disease.
Patent CA-1331593-C (CA)
Inventor: OBERWEILER GUENTER
IPC: E01B9/68
Filed: 1988-06-20
Granted: 1994-08-23
Abstract: ABSTRACT OF THE DISCLOSURE          A device for attaching a rail to a bearing element (tie) (3) and comprising an elastic intermediate plate (34) and on top of this a rigid pressure distribution plate (35) which is arranged between the base (2) of the rail (1) and the tie (3); guide plates (10, 11) are attached to the tie (3) to provide lateral guidance of the base of the rail (2) and clamps (38) act on the base of the rail (2) and clamp the rail (1) to the tie (3). The elastic intermediate plate (34) projecting on both sides beneath the base (2) of the rail (1) extends on each side into a recess (16, 17) formed by the guide plate (10, 11). As a result, the elastic intermediate plate (34) can provide adequate resistance to the horizontal forces so that tilting of the rail is prevented. At the same time, the major forces of the clamps (38) are transmitted via the guide plates (10, 11) directly to the tie (3) so that non-uniform compression of the elastic intermediate plate (34) cannot occur during assembly and thus rail cant errors are avoided.
Patent CA-1310847-C (CA)
Inventor: FEUSTEL HELMUT
IPC: B31B50/02
Filed: 1988-06-28
Granted: 1992-12-01
Abstract: An apparatus for controlling machines for making bags or sacks which have been severed by welding from continuous tubular or semitubular films or synthetic thermoplastics comprises at least one pair of pinch rollers for feeding the continuous film, which pinch rollers are driven via a transmission by a motor, and also comprises a pair of welding jaws for providing the continuous film with seam welds, transverse seam welds or severed transverse seam welds, a second motor for actuating said pair of welding jaws via a drive mechanism, and optional further cutters and the like, which are provided with drives. A central processing unit is provided, by which the motors are controlled in such a manner that the motor for the pair of welding jaws is energized even at a time at which the motor for driving the pair of pinch rollers, and after the standstill phase of the motor for driving the pair of pinch rollers the latter motor is energized even before the motor for driving the pair of welding jaws has stopped.
Patent CA-1291411-C (CA)
Title: Cement finishers's knee board
Inventor: MCDOWALL NEIL A
IPC: E04G1/00
Filed: 1988-08-30
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE          A rigid light weight knee board for cement finishers. The body of the knee board comprises a high density extruded closed cell polystyrene foam. A water repellent cover made from soft pliable vinyl is provided for the board and includes an upright handle strap.
Patent CA-1282184-C (CA)
Title: Substrate mounting device
Inventor: BELANGER THOMAS D JR
IPC: H05K1/18
Filed: 1988-09-29
Granted: 1991-03-26
Abstract: SUBSTRATE MOUNTING DEVICE         ABSTRACT A substrate mounting device for installing an electrical substrate to a carrier substrate. The substrate mounting device includes a plurality of tabs extending from the perimeter edges of the electrical substrate. First and second substrate guides are mounted to the carrier substrate and each include a lower shelf and a channel extending longitudinally along a substrate guide inner side, from an open end to a top guide. The channel is further defined by a top surface and a plurality of drop guides which in turn form a plurality of slots. The electrical substrate is installed by manually inserting the electrical substrate into a respective substrate guide open and and manually pushing the electrical substrate along the channels until the electrical substrate encounters a respective top guide whereby, the electrical substrate is urged downward. Each tab then falls within a respective slot, resting the electrical substrate on the lower shelf.
Patent CA-1305861-C (CA)
Title: Abrasive disc back up assembly
Inventor: LUECKE FREDERICK R
IPC: B24D15/00
Filed: 1988-10-05
Granted: 1992-08-04
Abstract: Abstract of the Disclosure A manually manipulatable pencil like abrasive disc back up assembly for supporting pressure sensitive adhesive coated abrasive discs while abrading defects in painted surfaces such as of automobiles.  The assembly includes an elongate rigid body member having sockets opening through its ends, and firm flexible support members having inner portions in the sockets, and outer portions projecting from the sockets with planar end surfaces adapted to support one of the pressure sensitive adhesive coated abrasive discs.
Patent CA-1322097-C (CA)
Title: Joint and shroud support for pour tube and collector nozzle
Inventor: KING PATRICK D
IPC: B22D41/56
Filed: 1988-11-08
Granted: 1993-09-14
Abstract: Abstract of the Disclosure:         A shroud or submerged pour tube which has a sealing cup of an essentially frustoconical configuration at its upper end is disclosed.  The sealing cup matingly engages a bullet-shaped nose on the lower portion of the collector nozzle extending downwardly from the valve.  The combination of the collector nozzle and the shroud and the join are held in compressive and oriented relationship by a shroud support assembly.  The shroud support assembly has adjustable length arms to permit tilting the shroud axis for alignment at the lower end of the shroud.  This urges a line contact at the joint at the upper end of the shroud where it engages the bullet nose of the collector nozzle.  The support assembly also may be mounted with flexibility for moving on the XY axis where the Z axis is the axis of the pour tube or shroud in those two plate situations where the collector nozzle shifts laterally during the on and off condition and also during throttling.
Patent CA-1291168-C (CA)
Title: Process for the production of dihydric phenols
Inventor: OGINO TAKAO
IPC: C07C409/12
Filed: 1988-12-01
Granted: 1991-10-22
Abstract: Abstract of the Disclosure A process for the production of dihydric phenoles by oxidizing diisopropylbenzenes, which comprises oxidizing diisopropylbenzenes with molecular oxygen to obtain a reaction product mixture (A) containing at least diisopropylbenzene dihydroperoxide (DHP) and diisopropylbenzene monocarbinol monohydroperoxide (HHP), supplying said product mixture (A) in a form of oily phase as a solution in an aromatic hydrocarbon solvent to an agitation reactor, supplying thereto at the same time, as an aqueous phase, hydrogen peroxide at a feed rate of 1 - 5 moles per mole of HHP contained in the product mixture and an acid catalyst in an amount sufficient to reach a concentration in the aqueous phase of 10 - 40 % by weight, the concentration of hydrogen peroxide in the aqueous phase being maintained at a value of at least 20 % by weight and the weight ratio of the oily phase/aqueous phase being at least 10, causing oxidization of the HHP into DHP by hydrogen peroxide while maintaining the reaction temperature at 30 - 60°C to obtain a reaction product mixture (B), separating the aqueous phase from the oily phase in the reaction product mixture (B) and subjecting the DHP in the so separated oily phase to an acid cleavage to form corresponding dihydric phenol.  The process permits to dispense with the removai of the reaction water, recirculation of the aromatic hydrocarbon and of the aqueous phase, while allowing a higher ratio of oily phase/aqueous phase and thus allowing reduction of the requisite amount of hydrogen peroxide and of the acid catalyst with simultaneous decrease in the reaction time.