baber/WOPTO huggingface dataset:
Patent CA-1285047-C (CA)
Title: Apparatus for stabilizing turbine-generator shaft torsional oscillations
Inventor: MASE AKIRA
IPC: H02P9/04
Filed: 1987-03-02
Granted: 1991-06-18
Abstract: ABSTRACT OF THE DISCLOSURE    An apparatus for stabilizing turbine generator shaft torsional oscillations including:  a current detector for detecting ac current of a turbine generator used in combination with a dc power-transmission system, a filter to which an output of said current detector is delivered, the filter comprising a first bandpass filter for detecting a super synchronous component (fl + fm) and a second bandpass filter for detecting a sub synchronous component (fl - fm) where a fundamental frequency of the generator is represented by fl and a natural frequency of the mechanical shaft system of the generator is represented by fm, a calculation circuit for applying conversion of at least one of d and q axis to respective outputs from the first and second bandpass filters using a generator phase .theta.G to take out at least one of .DELTA.id and .DELTA.iq of the sub and super synchronous components, a third bandpass filter to which an output from the calculation circuit is fed, the third bandpass filter for taking out a stabilization signal therefrom, and a circuit for controlling a converter for delivering an output of the generator to the dc power-transmission system on the basis of the stabilization signal.
Patent CA-1303463-C (CA)
Title: Method of and installation for cleaning motor vehicles
Inventor: WEIKMANN GUENTHER
IPC: B60S3/06
Filed: 1987-04-29
Granted: 1992-06-16
Abstract: Abstract In a method of wet-cleaning and drying and/or visual inspection, servicing and repair of motor vehicles, in particular of motor vehicles having more than two wheels, in which the supply of cleaning liquids to the vehicle, with the exception of the underfloor thereof, is effected substantially with the aid of manually operated means, it is provided according to the invention, in contrast  to the method usual so far, that, during the afore-mentioned operations, the vehicle is moved by foreign power past an operator's stand in such a manner that all lateral surfaces of the vehicle successively come to face said stand, with; operations of the above-indicated type being carried out at the same time also on the underfloor   and/or the roof of the vehicle.            An installation for carrying out the method in a roofed treatment room (2) for motor vehicles which is at least partly delimitated with respect to the surroundings and which comprises means (36, 37) for suppyling cleaning liquids required for the treatment of the vehicles, is characterized by a platform (15) rotatably disposed in the floor of the treatment room (2) and serving for receiving the vehicle to be treated, and by one multi appliance set (100, 101, 102) each, which serve for supplying several cleaning liquids of different nature independently of each other  and are each disposed on an operator's stand (34) in the stationary floor region of the treatment room (2),  below the rotatable platform (15) as well as thereabove on the roof  framework (7) of the treatment room (2).
Patent CA-1290933-C (CA)
Title: Water-tree stable electrical insulating polymeric compositions
Inventor: UMPLEBY JEFFREY D
IPC: C08L101/00
Filed: 1987-07-08
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE     POLYMER COMPOSITION        A composition suitable for use as electrical insulation comprises a polymeric component and a water tree retardant additive which is (A) an organo orthoborate or partial ester of boric acid having the general formula B(OR)(OR1)(OR2) in which R is an alkyl, aryl, aralkyl, alkaryl or cycloalkyl group having from 4 to 24 carbons and R1 and R2 are individually hydrogen or an alkyl, aryl, aralkyl, alkaryl or cycloalkyl group having from 4 to 24 carbon atoms or (B) an organo orthoborate or partial ester of boric acid with a polyhydric hydrocarbyl alcohol.
Patent CA-1300689-C (CA)
Title: Method for performing ophthalmic laser surgery
Inventor: L ESPERANCE FRANCIS A
IPC: A61F9/009
Filed: 1987-07-20
Granted: 1992-05-12
Abstract: METHOD FOR PERFORMING OPHTHALMIC LASER SURGERY     ABSTRACT OF THE DISCLOSURE      The invention contemplates controlled ablation of the cornea, using ultraviolet laser radiation, wherein irradiated flux density and exposure time are so controlled as to achieve desired depth of the ablation.  Sculpturing action results from controlled change of projected laser-spot size, in the course of a given treatment, wherein, in one illustrative case, projected laser-spot size ranges from a maximum which covers the entire area to be treated, down to a predetermined minimum tolerable size, wherein cornea-curvature change is myopia-corrective.  Further illustrative techniques and situations are also disclosed, for achievement of hyperopia correction, for astigmatism correction, and in connection with corneal-transplant operations.
Patent CA-1275338-C (CA)
Inventor: HELLERMANN WALTER
IPC: B60C1/00
Filed: 1987-08-12
Granted: 1990-10-16
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed are ABC block copolymers based on butadiene and isoprene, processes for their manufacture and their use.  The block copolymers comprise: 40 to 75% of a block A based on buta-diene (uniformly distribut d vinyl group content less then 15%), up to 25% of a block B based on butadiene and isoprene (vinyl content less than 15%) or based on butadiene (vinyl content more than 75), and 20 to 55% of a block C based on butadiene and isoprene (vinyl content more than 75%).  The ABC block copolymers are useful for the manufacture of tyre treads.
Patent CA-1318589-C (CA)
Title: Drug delivery system
Inventor: ECANOW BERNARD
IPC: A61K9/50
Filed: 1987-08-13
Granted: 1993-06-01
Abstract: ABSTRACT         A injectable drug delivery system based upon a two phase liquid aqueous coacervate system useful for the solubilization and delivery of the parent compound or salt thereof of parenterally administered drugs is dis-closed.  The delivery system demonstrates normal pharmacokinetics and can be administered at the pH of body tissue.  The invention also provides a method for preparing the drug delivery system whereby sterile, effective solutions of injectable drugs are provided.
Patent CA-1290036-C (CA)
Title: Waterproof electrical splice enclosure
Inventor: JOHANSSON RONALD C
IPC: H01R13/523
Filed: 1987-09-02
Granted: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE             A waterproof electrical splice enclosure for receiving an electrical connector connecting the ends of a plurality of insulated electrical conductors extending out of the connector in the same direction and parallel to one another.  The enclosure comprises an elongate hollow tube having one open end and one closed end and having a cross-section slightly larger than the connector, means for retaining the electrical connector adjacent the closed end of the tube with the insulated electrical conductors extending out of the open end of the tube, and a waterproofing fluid which will not flow out of the tube but which will flow around the connector as it is slid into the tube to provide a waterproof seal around the connector and around and between the insulated conductors.
Patent CA-1341498-C (CA)
Title: Polysubstituted aryl acridinium esters
Inventor: PALMACCI STEPHEN A
IPC: C07D219/04
Filed: 1987-09-30
Granted: 2006-03-14
Abstract: The present invention relates to novel acridinium esters which are useful as luminescent labels in specific binding assays such as immunoassays or nucleic acid hybridization assays. More particularly, polysubstituted aryl acridinium esters are highly stable labels for use in a chemiluminescent immunoassay.
Patent CA-1290874-C (CA)
Title: Thermoplastic resin composition
Inventor: KITAHARA HARUYOSHI
IPC: C08L51/00
Filed: 1987-10-05
Granted: 1991-10-15
Abstract: Abstract Disclosed is a thermoplastic resin composition comprising a graft polymer resin (I) obtained by polymerizing one or more monomers (b) selected from the group consisting of aromatic vinyl compounds and ethylenically unsaturated compounds, in the presence of a latex of an ethylene-propylene-non-conjugated diene terpolymer rubber (a) having a specific gel content and a specific particle diameter, so that the graft polymer resin contains a specific proportion of the rubber (a); and a rigid thermoplastic resin (II).  This resin composition has excellent weather resistance and impact resistance, and yields molded articles having a good surface gloss.
Patent CA-1287516-C (CA)
Title: Banding knives and the like
Inventor: CRUSON IZAAC
IPC: A01B15/02
Filed: 1987-10-13
Granted: 1991-08-13
Abstract: IMPROVEMENTS IN BANDING KNIVES AND THE LIKE          ABSTRACT OF THE DISCLOSURE         A banding knife holder is provided together with a replaceable tip which are bolted into position rather than being welded thus facilitating easy replace-ment thereof.   The side plates of the tip are recessed into each side of a holder thus enabling a single fasten-er to be used in the securement of the tip to the holder because of the socketing relationship therebetween.  This improves draft and the full shoulder contact spreads and absorbs the impact pressure of obstacles engaged by the tip during use.  Replaceable tillage sweeps may be bolted on each side of the tip for ease of replacement and enable fertilizer to be deep banded while shallow culti-vation of the soil is accomplished.
Patent CA-1321204-C (CA)
Title: Acylation products of bis(2-imidazolin-2- ylhydrazones) of 9,10-anthracenedicarboxaldehyde
Inventor: MURDOCK KEITH C
IPC: A61P35/00
Filed: 1987-10-21
Granted: 1993-08-10
Abstract: Abstract N-acylated derivatives of bis(2-imidazolin-2-ylhydrazoles) of 9,10-anthracenedicarboxaldehyde of the formula   wherein R1 and R3 are the same or different and are selected from a variety of simple aliphatic or aromatic moieties and R2 and R4 are the same or different and are selected from hydrogen or a variety of simple aliphatic and aromatic moieties are useful as anti-cancer agents.
Patent CA-1328031-C (CA)
Title: Preparation of copolymers of polyvinyl alcohols
Inventor: SHU PAUL
IPC: C08F8/30
Filed: 1987-12-07
Granted: 1994-03-22
Abstract: ABSTRACT OF THE DISCLOSURE      A  one-step  process  for the  preparation  of  high viscosity modified polyvinyl alcohols comprises forming at room temperature a water slurry of a polyvinyl alcohol having a degree of hydrolysis varying from about 90% to about 95% or more, an alpha, beta-unsaturated carbonyl compound modifying agent such as acrylamide wherein said polyvinyl alcohol and said modifying agent are present in a molar ratio of from about 1:10, and a base, and heating the mixture to a temperature of less than 100°C for a time sufficient to obtain the resultant modified high viscosity high molecular weight product.   Such products have higher viscosity than those prepared via a two-step high temperature modification reaction.
Patent CA-1283269-C (CA)
Inventor: GEIGER HERBERT B
IPC: B29C48/10
Filed: 1987-12-16
Granted: 1991-04-23
Abstract: ABSTRACT         A method and apparatus is disclosed for producing a reclosable bag film.  The bag film is produced by extruding a film web having a relatively thinner first portion and relatively thicker second portions which are formed unitarily with the first portion.  Closure members preferably in the form of male and female fastener profiles, are formed separately from the film web and joined to the thicker second portions before the thicker second portions have become cooled to an ambient temperature.   35,324-F
Patent CA-1305523-C (CA)
Title: Methods and devices for altering optical polarisation
Inventor: HODGKINSON TERENCE G
IPC: H04J14/00
Filed: 1987-12-23
Granted: 1992-07-21
Abstract: ABSTRACT                  OPTICAL POLARISATION CONTROL     The invention provides methods and devices for processing an optical signal.  In one embodiment an optical device (101) for scrambling an Input optical signal comprises an optical switch (10) which switches the optical signal between two intermediate optical paths (13,14) under control of a scrambling signal from A control circuit (12).  The polarisation of the signal in one of the intermediate optical paths (13) is rotated by a TE-TM converter (15).  The polarisations of the two intermediate signals are thereby made mutually orthogonal.  These mutually orthogonal signals are then recombined by a directional coupler (16) to provide a combined output optical signal with a scrambled polarisation alternating between othogonal states according to the frequency of the scrambling signal.    The invention may be applied to improve signal reception, for example, in coherent optical transmission systems.     Figure 3
Patent CA-1298266-C (CA)
Title: Electromagnetic flow control valve for pressure control or the like
Inventor: HASHIZUME YOSHIKAZU
IPC: F16K31/06
Filed: 1988-02-09
Granted: 1992-03-31
Abstract: ABSTRACT OF THE DISCLOSURE   A pivotal armature on which a resilient elatomeric body is mounted, is arranged to be engageable with first and  second  surfaces  in  a  manner  which  limits  its movement and which holds the armature in a first closed valve position wherein the elastomeric body is permitted to engage  and close a valve port but prevented from undergoing excessive deformation and a second valve open position wherein  the  elastomeric  body  is moved  just sufficiently to open the port.
Patent CA-1292428-C (CA)
Title: Method and apparatus for enhanced oil recovery
Inventor: SCHWAB CARL M JR
IPC: E21B43/24
Filed: 1988-02-11
Granted: 1991-11-26
Abstract: Abstract of the Disclosure.      An  enhanced  oil  recovery well  system  and  method providing  for  simultaneous  heated  vapor  or hot  liquid injection of usually water into one or more formations in a well through a single conduit.  The well system utilizes injection mandrels  selected  to  provide  drier  steam or wetter steam and hot water to inject for best recovery from  a  particular  formation.    One  injection  mandrel separates and collects wetter steam and hot water from injected steam flow and directs the wet steam and hot water flow through the mandrel while directing steam flow into a formation.   The other mandrel has upper and lower means  for  separating  and  collecting wet  steam and hot water and directs wet steam and hot water flow into a formation while directing steam flow through the mandrel. More than one mandrel may be used for each formation and control  means  may  be  installed  in  either  mandrel  to control flow into formations.  Well systems are monitered and controlled for efficient operation and recovery.
Patent CA-1316354-C (CA)
Title: Sanding wheel
Inventor: VOORHEES THEODORE
IPC: B24D99/00
Filed: 1988-05-02
Granted: 1993-04-20
Abstract: ABSTRACT                       SANDING WHEEL        A sanding wheel is provided having easily removable  and replaceable  contoured  abrasive strips enabling use  of the  sanding  wheel  to  sand  workpieces  of  different contours accurately without replacement of the  complete sanding wheel.
Patent CA-1278338-C (CA)
Inventor: THOMAS STEPHEN E
IPC: F21S9/02
Filed: 1988-06-03
Granted: 1990-12-27
Abstract: ABSTRACT THE DISCLOSURE An imitation candle type of table lighting fixture contains  one or more rechargeable batteries.  While the lamp is in its holder, the battery is continuously coupled to the small light bulb. The battery is recharged by removing the candle from the holder and plugging it into a recharging unit having a phone plug extending into a jack centered in the bottom of the candle.  The insertion of the plug into the jack opens the light bulb circuit and forms a charging circuit through the rechargeable battery.
Patent CA-1300338-C (CA)
Title: Gutter assembly
Inventor: WILLIAMS ROBERT D
IPC: E04D13/064
Filed: 1988-06-14
Granted: 1992-05-12
Abstract: PATENTS                  ABSTRACT OF THE DISCLOSURE    A gutter assembly with a leaf and pine needle guard for attachment along the roof edge of a structure.  Mounting brackets are provided for securing the assembly to the structure along its length.  The gutter assembly includes an elongated trough with a curved shaped elongated shed surface engaging the roof edge and having a plurality of longitudinally spaced rows of slots and interconnecting slits along its vertical portion.  Each of the slots define therebetween a compound curved flange, its apex residing within the vertical plane of the water shed.  The slots selectively allow the water to enter the trough position below while excluding pine needles, leaves and other debris from engagement within the gutter.
Patent CA-1289999-C (CA)
Title: Ultrasonic driving device
Inventor: HONDA KEISUKE
IPC: H01L41/09
Filed: 1988-07-11
Granted: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE:     An ultrasonic driving device comprises a stator having two metal  blocks,  at  least  one  piezoelectric  vibrator,  and two electrodes,  one of which is divided into at least two parts, secured to the  sides of the two blocks,  and having a driven member threadedly secured to the stator,  for rotation relative thereto.
Patent CA-1279017-C (CA)
Inventor: HENDLEY DAVID G
IPC: F01D11/00
Filed: 1988-08-04
Granted: 1991-01-15
Abstract: ABSTRACT OF THE DISCLOSURE    A gas  turbine  rotor  blade platform sealing  and damping   system  has   elongated  symmetrical   insert elements   of   equilateral   triangular   cross-section loosely received within complementary shaped pockets at  the  spacing  gaps  between  opposing  convex  and concave airfoil side edges of adjacently mounted blade platforms.   The  inserts  and  pockets  are  relatively configured to provide self-orientation of the inserts into gap sealing and vibration damping engagement with the  platform  edges  when  acted  upon  by  centrifugal force due to rotor rotation.  The convex platform edge is thickened at the point of closest proximity with the  convex  side  of   the   airfoil.     Alternative embodiments  utilize  insert  grooves  for  increased leakage of  cooling  gas past  the platform edges  and incorporate a central bore for mass reduction.
Patent CA-1304633-C (CA)
Title: Friction surface for packing foil or like with friction surface
Inventor: KATILA MATTI
IPC: B65D/
Filed: 1988-08-17
Granted: 1992-07-07
Abstract: Abstract The  invention  relates  to  a  friction  surface  comprising  a conventional  foil  (1),  such as paper or plastic foil,  and hot melt bulges  (2)  and pattern formed by them made on the foil surface by a screening technique. The foil (1) chosen to be used should be  such that it is most  suitable  for the specific package, but the thickness of it should preferably be more than 35 mm and it should at least temporarily endure the heat of about 140 - 180° C, which the hot melt has. The bulges made of hot melt are most advantageously made 50-150 µm high, whereby their ability to adhere to other surfaces is excel-lent. By using filling materials of the hot melts the friction can be increased even more, but in such cases normally thicker basic foil has to be used so as to prevent the foil from tearing. By using a friction surface, considerably high piles of packages can be made. Because the hot melt can be remelted, the top packages can be bound together by spreading any kind of foil on them, which can be attached on the friction surface by heating.
Patent CA-1327322-C (CA)
Inventor: JANSKY JAROSLAV
IPC: B29C65/08
Filed: 1988-08-19
Granted: 1994-03-01
Abstract: Abstract of the Invention Self-closing fuel tank closing device (4) to be mounted on a fuel tank filler pipe (1), with a filler cap (9), which is tensioned in the direction of a sealing seat (8), rotatable in the direction of the interior of the filler pipe and carried by swivel arm (13) supported at one end.   To achieve a small construction and degressive torque characteristics on opening the filler cap (9),  it is provided that the free end of the swivel arm (13) is supported on a supporting surface (14) running ap-proximately perpendicular to the longitudinal  axis of the fuel  tank closing device and in that a clamping device (16), which pretensions the filler cap (9) in the direction of the sealing seat (8), is mounted on the swivel arm (13) in the region between the free end and the filler cap (9).     (Figure 1)
Patent CA-1323001-C (CA)
Title: Multiple-product merchandising machine
Inventor: FALK LEONARD P
IPC: G07F11/54
Filed: 1988-09-13
Granted: 1993-10-12
Abstract: MULTIPLE PRODUCT MERCHANDISING MACHINE                  ABSTRACT OF THE DISCLOSURE           A multiple-product merchandising machine having a cylindrical drum mounted within a cabinet.  The drum is di-vided into a plurality of horizontal shelves each of which is divided by a plurality of vertical walls into separate compartments from which the product can be dispensed. These compartments can be brought into alignment with ac-cess doors associated with each level and the doors, which are normally maintained locked, can be opened upon the in-sertion of adequate currency in the machine to remove the product.  The access door locking system prevents more than one door from being opened at one time.  The drum is ro-tatable in either direction by a reversible motor.  A view-ing area is provided in the front of the machine which al-lows a prospective customer to see the product as it passes by.  The drum is divided into sections with opaque walls which prevent viewing from the viewing area of more than half of the compartments on a shelf when the drum is in its rest position.  The drum can be restricted in its rotation so that less than all of the compartments can be accessed by the access doors.  The section which is accessible can be changed at different times of day, or if the previous section has had a lot of its items sold so that a new sup-ply of items can be viewed and accessed.
Patent CA-1299998-C (CA)
Title: Sinusoidal pressure pulse generator for measurement while drilling tool
Inventor: MALONE DAVID
IPC: E21B47/18
Filed: 1988-09-21
Granted: 1992-05-05
Abstract: ABSTRACT OF THE INVENTION      A pressure pulse generator which generates relatively sinusoidal pressure pulses in a fluid flowing in a borehole is disclosed.  The pressure pulse generator for a MWD tool broadly comprises: a housing adapted to be connected in a tubing string so that fluid flowing in the string will at least partially flow through the housing; a stator mounted within the housing and having a plurality of lobes with intervening gaps; a rotor coaxial to the stator which rotates relative to the stator and which is mounted within the housing and has a plurality of lobes with intervening gaps between adjacent lobes, wherein the lobes of the rotor and stator are arranged such that as the rotor rotates relative to the stator, the area of the adjacent gaps between the lobes of the stator and rotor through which the fluid may flow in a direction parallel to the borehole varies approximately with the inverse of the square root of a linear function of a sine wave.  Preferably, the geometrical arrangement of the stator and rotor are substantially identical with a plurality of lobes with intervening gaps around a central circular hub.  A first side of each lobe is defined by a radial extension from the circular hub, and the second side of each lobe is substantially parallel to the first side.
Patent CA-1310055-C (CA)
Title: Controllable electric heater
Inventor: WORRALL PETER W
IPC: H05B3/74
Filed: 1989-02-24
Granted: 1992-11-10
Abstract: ABSTRACT           The present invention relates to controllable electric heaters, in particular heaters employing tungsten halogen lamps and suitable for use in cookers of the type having a ceramic hob below which are placed the heaters.           It is an object of the present invention to provide a controllable electric heater employing two tungsten halogen lamps and other components of an inexpensive nature and which allows six different power O settings to be obtained.