baber/WOPTO huggingface dataset:
Patent CA-1210494-A (CA)
Inventor: NEIDELL NORMAN S
IPC: G01V1/30
Filed: 1983-08-31
Granted: 1986-08-26
Abstract: ABSTRACT   This invention consists of producing a two-dimensional display from exploration seismic data designed to indicate zones of anomalous low velocity in the subsurface. Such zones may be indicative of porosity and the possible occurrence of hydrocarbons. They will be localized in terms of position along the seismic profile and in approximate zone of reflection arrival time. Data used in making the display are derived from both the CDP stacked seismic profile and corresponding velocity analyses used also to stack the data itself. Stacking velocity curves are plotted according to CDP location for each reflector designated by an interpreter to be of interest. These curves are overlain in pairs using calibration calculations and empirical criteria. Calibration helps smooth "noisy" values and compensates for velocity variations resulting from changes in separation or dip of the two reflectors from which the overlain velocity curves derive. In addition, it is presumed that the interval bracketed by each reflector pair taken in turn has uniform or only regional lateral variations of interval velocity - no local lateral variation is assumed. "Cross overs" or convergences of the paired curves thus indicate zones of either high or low interval velocity of local nature. The display itself consists of the velocity curves for all possible reflector pairs and vertical bands of color which are assigned to identify the reflection interval of particular low velocity zones which are shown consistently by all reflectors taken in pairs which bracket such zones. Horizontal position is of course indicated by the CDP location.
Patent CA-1217468-A (CA)
Inventor: MCVICKER GARY B
IPC: B01J23/90
Filed: 1983-10-17
Granted: 1987-02-03
Abstract: ABSTRACT OF THE DISCLOSURE           A process for removing metal contaminants from a hydroconversion catalyst, said catalyst containing at least one metal from Groups VIB, VIIB or VIII supported on a refractory inorganic oxide.  The process comprises contacting  the  contaminated  catalyst with  a buffered oxalic acid solution wherein contaminant is removed without dissolving the support.
Patent CA-1218811-A (CA)
Inventor: GUERRA GAETANO
IPC: C08J7/046
Filed: 1983-10-24
Granted: 1987-03-10
Abstract: A B S T R A C T           A process for manufacturing light guide articles based on glassy polymers, comprising  immersing the article in a bath containing a substance having an index of refraction different from the one of the polymer by at least 5.10-2 units, and in removing the solvent by heat treatment at 20-150°C.
Patent CA-1216713-A (CA)
Inventor: NIELSEN EDWARD M JR
IPC: B60S1/38
Filed: 1983-11-18
Granted: 1987-01-20
Abstract: ABSTRACT OF THE DISCLOSURE A heated windshield wiper has resistance wiring running along the length of the wiper arm, the blade carrier, and the wiper blade for heating the blade and carrier when connected into a vehicle electrical system.  Wir-ing connections are provided between the blade and the carrier allowing blades to be replaced independently of the arm and carrier.
Patent CA-1247295-A (CA)
Inventor: SIANO DONALD B
IPC: C08F220/56
Filed: 1983-12-29
Granted: 1988-12-20
Abstract: ABSTRACT OF THE DISCLOSURE             The present invention relates to a free radical copolymerization process for forming copolymers of acrylamide/alkyl acrylamide having the formula:       wherein R1 is an alkyl or cycloalkyl group having  6 to 22 carbon atoms, R2 is the same or different alkyl group as R1 or hydrogen, x is 90.0 to  99.9 mole %, and y is 0.1 to 10.0 mole %.
Patent CA-1196949-A (CA)
Inventor: NEFF PAUL J
IPC: A47B53/00
Filed: 1984-01-04
Granted: 1985-11-19
Abstract: Title: STORAGE UNIT Inventor: PAUL J. NEFF        ABSTRACT OF THE DISCLOSURE         A storage unit such as a pantry cupboard for a kitchen is disclosed.  The unit includes a cabinet en-closure and a pair of doors for closing the enclosure.  A pair of bi-fold panels are provided inside the enclosure and are hinged to respectively opposite sides of the enclosure so that each pair of panels can be disposed in a folded configuration when the doors are closed, or extended out of the enclosure when the doors are open.       The inner face of each panel is provided with storage racks arranged in a superimposed series and the panels are inset into the cupboard to an extent sufficient to accommodate the racks.
Patent CA-1238807-A (CA)
Inventor: ROANE JAMES B
IPC: A61C3/02
Filed: 1984-02-06
Granted: 1988-07-05
Abstract: Abstract Of The Disclosure An improved endodontic instrument includes a tapered working portion defined on a flexible shaft.  The working portion in-cludes a plurality of spiral rotationally bi-directional cutting edges thereon.  The instrument includes a tapered tip defined on the flexible shaft and intersecting an end of each of the cutting edges of the working portion.  The tapered tip has a greater angle of taper than does the tapered working portion.  The tapered tip is shaped such that the sharp cutting points which are normally present at an intersection between the ends of the cutting edges and a standard 75° included angle conically tapered tip are substantially eliminated so that lateral transportation of the instrument when cutting a curved root canal is reduced as compared to an otherwise similar instrument having a standard 75° included angle conically tapered tip.
Patent CA-1219659-A (CA)
Inventor: LEVASSEUR JOSEPH L
IPC: G07F5/22
Filed: 1984-02-08
Granted: 1987-03-24
Abstract: ABSTRACT OF THE INVENTION          A vend control circuit for a multi-channel vendor, including a credit entry circuit, a plurality of selection switches actuatable for selecting different vend selections, a plurality of vend motors, each vend selection having a vend motor associated therewith, a plurality of vend channels each of which may have a different, pre-established vend price associated therewith, a master control circuit for accumulating total credit entered, which master control circuit sequentially compares the total credit entered against the vend prices of each of the vend channels and produces for each such comparison a vend channel authorization signal if the total credit deposited at least equals the vend price, a delivery control circuit for effecting energization of a particular vend motor when a vend selection switch with which such particular vend motor is associated is actuated during the time that a vend channel authorization signal is being produced for the vend channel to which the actuated switch belongs, and a monitor circuit connected in common to the plurality of vend channels for detecting the energization of any vend motor, the master control circuit responsive to detection of such vend motor energization to terminate further sequential comparison and to effect vend delivery circuit lock-up for a sufficiently long enough period to permit the energized vend motor to operate.
Patent CA-1216626-A (CA)
Inventor: GLENNON TIMOTHY F
IPC: H02M7/5387
Filed: 1984-08-30
Granted: 1987-01-13
Abstract: Method and Apparatus for Controlling Switches in an Inverter Abstract A method and apparatus for controlling switches in an n-phase static inverter of the bridge type is dis-closed wherein the inverter includes n pairs of switches connected across two DC voltages, with a phase output being developed at the junction between switches of each pair.  In such an inverter, at any particular time, n1 phase outputs are connected to one of the DC voltages while n2 phase outputs are connected to the other DC vol-tage, where n1 ? n2 and n1 + n2 = n.  The n1 phase out-puts are identified by logic circuitry and the sw?tches associated with such phase outputs are operated during times when a pulse width modulation waveform is in a low state so that all phase outputs are connected to the same DC voltage.  The method and apparatus of the present in-vention reduces the number of switching occurrences to the minimum required to achieve defined applied voltage pulse width modulation.  Further, the method and appara-tus of the present invention does not result in the gene-ration of regenerative currents, and hence various types of DC sources may be used and the DC bus filter may be reduced or eliminated.
Patent CA-1220079-A (CA)
Inventor: HORI KEIICHI
IPC: B41J2/05
Filed: 1984-08-30
Granted: 1987-04-07
Abstract: ABSTRACT OF THE DISCLOSURE           An ink jet printer utilizing a film having a plurality of ink filled holes passing in front of a thermal head having thermal heating elements which may be energized to spout or eject ink onto a record medium.  By appropriate film and record medium motion coupled with selective energization of thermal elements in a variety of configurations, both line and serial printing may be achieved.  Coloured inks may be com-bined to provide full colour reproduction.  The film may be an endless sheet carried on rollers and inked in an ink tank, or a reciprocating sheet passing in front of the thermal head.  The use of sponge rollers for ink-ing the film is also taught.
Patent CA-1222552-A (CA)
Inventor: CHARLEBOIS LEONARD J
IPC: H02G15/007
Filed: 1984-08-31
Granted: 1987-06-02
Abstract: CABLE SPLICE CLOSURE AND STRAIN RELIEF      ABSTRACT OF THE DISCLOSURE         Cable splice and closure arrangement to cover a cable region which is devoid of sheath and jacket.  At each side of the devoid region, the cable has a strap member encircling it and piercing prongs of the strap member protrude through the jacket and into the sheath at spaced positions around the cable.  An outwardly projecting flange of each strap member is intimately embedded in a moulded plastic end of a combined closure and tensile strength structure.  This structure may be an integral plastic moulding having the two ends and a portion between the ends and which bridges the devoid region. Alternatively, it may comprise individual moulded plastic ends with tensile elements such as steel rods extending between and embedded in the ends.  The invention also includes a strain relief device for inclusion in the splice and closure arrangement.                       - i -
Patent CA-1242716-A (CA)
Inventor: ROBERTSON DAVID W
IPC: A61P7/02
Filed: 1984-09-04
Granted: 1988-10-04
Abstract: Abstract This invention provides for certain naph-thalenylimidazo compounds, their pharmaceutical formu-lations, and their use as positive inotropic agents, bronchodilators, vasodilators, and anticoagulants.
Patent CA-1228349-A (CA)
Inventor: NITTA ISSEI
IPC: C07J7/00
Filed: 1984-09-06
Granted: 1987-10-20
Abstract: TITLE OF THE INVENTION:      NOVEL 6-OXYGENATED CORTICOID 17.alpha.-CARBONATE      DERIVATIVES AND PROCESS FOR PRODUCTION THEREOF     ABSTRACT:        Novel 6-oxygenated corticoid 17.alpha.-carbonate derivatives are disclosed.  These derivatives have strong topical anti-inflammatory activity and extremely weak systemic adverse reactions and are useful for the treatment of acute and chronic eczema, eczema seborrhoicorum, contact dermatitis, atopic dermatitis, asthma, etc.
Patent CA-1244515-A (CA)
Inventor: MAXFIELD MACRAE
IPC: H01M4/60
Filed: 1984-11-14
Granted: 1988-11-08
Abstract: ABSTRACT       BATTERY HAVING POLYMERIC ANODE COATED WITH    REACTION PRODUCT OF OXIRANE COMPOUND Rechargable battery with a conjugated backbone polymer anode which has been coated, when in the reduced state, by contact with a monomer with a reactive oxirane group.  Reduced polyacetylene anodes, after reaction with ethylene oxide, offer improved stability to solvents.
Patent CA-1237413-A (CA)
Inventor: FOCKE HEINZ
IPC: B65H19/12
Filed: 1984-11-19
Granted: 1988-05-31
Abstract: ABSTRACT      High-performance packaging machines, especially for cigarettes, require a large quantity of packaging material for producing blanks.  The sheet-like packaging material is provided in reels.  To provide a sufficient supply of reels for the packaging machine there is a reel magazine which has a reel turret with a plurality of reel holders.  Each reel holder itself receives a plurality of reels arranged equiaxially next to one another.  These are fed in succession to a consumption station or reel-receiving devices.
Patent CA-1219661-A (CA)
Inventor: BURGESS JAMES P
IPC: E05B65/20
Filed: 1984-11-29
Granted: 1987-03-24
Abstract: KEYLESS ACCESS CONTROL AND SECURITY SYSTEM            ABSTRACT OF THE DISCLOSURE    A keyless access control and security system especially adapted for use with an automobile comprises a piezoelectric permutation touchpad unit which can be affixed, without requiring bodywork, to the outside of the vehicle's door in the key cylinder aperture.  The touchpad is illuminated when touched and is therefore usable in the dark.  The person seeking access must enter the correct access code combination on the touchpad to open the door and/or the trunk.  The touchpad is connected to a remotely located logic circuit which controls access.  The circuit provides for a signal of low intensity, indicating that a correction in the code entered into the touchpad should be made and, after a time delay, an alarm of high intensity, if no correction is made.  Upon activation of the alarm, the headlights are flashed, the horn is sounded, or both.  In order to enable a parking attendant, repairman, or some other authorized person to have access to the automobile without revealing the access code, the logic circuit can be programmed, by operation of the touchpad, using the proper access code and a further secondary code, arbitrarily selected, to provide access to the automobile in response to the secondary code, which later can be erased.
Patent CA-1249798-A (CA)
Inventor: SCHNEIDER WESLEY C
IPC: A62B18/08
Filed: 1984-12-11
Granted: 1989-02-07
Abstract: ABSTRACT OF THE DISCLOSURE A liquid storage and delivery system for use with protective masks having hand-operable bulb siphon pumps in line with conduits extending from a canteen assembly to the drinking mouthpiece of the protective mask. The system includes structure to allow a user to drink directly from a central storage/dispensing reservoir by connecting the conduits directly thereto, and also allows the canteen assembly to be refilled from the reservoir while maintaining the system's protective integrity.
Patent CA-1230709-A (CA)
Inventor: RAHKILA PEKKA
IPC: D21C5/00
Filed: 1984-12-12
Granted: 1987-12-29
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention concerns a procedure for produc-ing refined groundwood pulp from chips, in the procedure being used softwood and hardwood chips in such manner that the pulp that is obtained contains in mixture both matter from softwood and matter from hardwood.  In the procedure, the hardwood chips are prior to the refining step pretreated by impregnating them with an alkaline solution, and the essential feature of the invention is that in the pretreatment is used an alkali hydroxide solution with concentration in the range 0.1-0.5 M, and that the pretreated hardwood chips are mixed with the softwood chips, whereafter the mixture thus obtained is refined to groundwood pulp.  The pretreatment solution is preferably a sodium hydroxide solution, and it may also contain sodium sulphite.  The mixing of the pretreated hardwood chips and the softwood chips is most advantageously done so that the proportion of hardwood chips in the mixture is 30-60%.  The binding strength and opacity of the groundwood pulp thus obtained are such that the pulp is appropri-ate e.g. for making printing paper.
Patent CA-1235497-A (CA)
Inventor: WILKINSON RICHARD L
IPC: G11B7/0045
Filed: 1985-02-21
Granted: 1988-04-19
Abstract: APERTURE COMPENSATION SIGNAL                    PROCESSOR FOR OPTIC RECORDING     ABSTRACT           A signal processor and method for frequency compensating the drive signal for an optical modulator in an optical recording apparatus to make the exposure level modulation amplitude on the medium independent of the spatial frequency of the information being recorded.  The processor compensates for exposure level modulation roll off at high spatial frequencies due to the finite size of the recording spot by increasing the amplitude of the modulator drive signal at high frequencies.  The compensation is preferably the inverse of the modulation transfer function of the recording objective lens.
Patent CA-1249174-A (CA)
Inventor: NEHRING JOHN R
IPC: A61M5/14
Filed: 1985-03-07
Granted: 1989-01-24
Abstract: ABSTRACT OF THE DISCLOSURE A two-stroke pumping device for developing pulsatile fluid flow includes a housing with an internal resilient flexible element.  The flexible element defines a pair of chambers within the housing, including a pumping chamber and a driving chamber.  The pumping chamber is connected to a source of the fluid to be pumped and the driving chamber is connected to a pneumatic pressure source adapted to create a pressure differential across the flexible element.  The device includes a means responsive to the flexure of the element in the ejection stroke to terminate that stroke and begin the filling stroke.  The flexible element oscillates to generate repetitive ejection and filling strokes.
Patent CA-1240036-A (CA)
Inventor: YOKOYAMA YUKIO
IPC: H01Q9/30
Filed: 1985-05-17
Granted: 1988-08-02
Abstract: ABSTRACT     An antenna includes a microstrip antenna comprising a ground con-ductor plane and a radiating conductor plane arranged on opposite sides of a dielectric substrate.  A connecting conductor plane connects the radiating conductor plane and the ground conductor plane, and a unipole antenna is coupled to the radiating conductor plane on one end thereof.
Patent CA-1246132-A (CA)
Inventor: KEEFFE WILLIAM M
IPC: H01J61/073
Filed: 1985-05-23
Granted: 1988-12-06
Abstract: ELECTRODE POSITIONING IN METAL HALIDE LAMPS                            ABSTRACT    A low wattage metal halide discharge lamp includes an evacuated outer envelope, a domed quartz sleeve therein and an arc tube within the domed quartz sleeve with the arc tube having a pair of electrodes press sealed therethrough with each of the electrodes having a coil thereon spaced from the press seal and from the end of the electrode to provide a figure of merit (FM) substantially equal to the product of the distance from the press seal to the coil and the distance from the press seal to the end of the electrode.
Patent CA-1244710-A (CA)
Inventor: MAI JIMBIN
IPC: A23F3/18
Filed: 1985-06-06
Granted: 1988-11-15
Abstract: Abstract Composition containing tea extract A composition comprising a nitrite cured food product and an extract formed by the aqueous extraction of black tea leaves in a process which includes a treatment at a temperature from 120°C to 210°C, the amount of extract being such that the content of tea solids present is from 0.005% to 1.5% by weight based on the weight of food, said extract containing at least 5% by weight of polyphe-nols based on the weight of tea solids. The formation of N-nitrosamines is inhibited in the nitrite cured food product.
Patent CA-1259811-A (CA)
Inventor: MAZZIOTTI MICHAEL F
IPC: F16D3/205
Filed: 1985-06-27
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE    A tripot universal joint of the end motion type is provided.  The joint includes a first shaft (12) with a cup-shaped member (14) at one end having three axially-extending, parallel grooves (20) in its inner periphery.          Another shaft (22) has a spider (24) at one end with three (28) extending radially outwardly.  A roller (44) is mounted on each trunnion for slidable, rotatable, and pivo-tal movements with respect to the trunnion.  The roller is maintained with its axis perpendicular to the associated groove, even when the spider shaft is positioned at a sub-stantial angle to the axis of the first shaft and the cup-shaped member.  The roller mounting includes a guide ring (80) slidably mounted on the trunnion for axial movement with respect thereto, the guide ring having an outer segmental spherical surface (34).  Bearings (36) having surfaces (38) formed by a curved generatrix with a radius extending away from the longitudinal axis of the bearings and being substan-tially equal to the radius of the spherical surface of the guide ring are located around the guide ring which forms an inner race.  The roller is positioned around the bearings and forms an outer race.  The annular surface (46) of the roller adjacent the bearings can be curved in transverse cross section to fully support the bearings,  The surface can also be flat (76) in transverse cross section to support end portions of the bearings.  In that instance, the bearings have generally cylindrical and portings (68, 70) engaged by the flat surface of the roller for support.
Patent CA-1269770-A (CA)
Inventor: ADAMS JOHN L
IPC: H04L12/28
Filed: 1985-07-12
Granted: 1990-05-29
Abstract: ABSTRACT     A communications network comprises a plurality of stations which can communicate via a ring.  Information is transmitted from one station to another in message blocks which circulate around the ring.  The message blocks include control bits and a protocol is employed which ensures that no one station can monopolise the available message blocks.  Also described is a technique which allows each station independently to assess the current spare capacity of the network.  A link multiplexer may be used in conjunction with rings and incorporates a similar protocol.  It provides access to a link to queues of message blocks provided queue thresholds have not been reached.
Patent CA-1239509-A (CA)
Inventor: OLSON WINSTON O
IPC: A22B5/00
Filed: 1985-07-15
Granted: 1988-07-26
Abstract: ABSTRACT     An eviscerating and survival tool having a shaft with a handle at one end, a claw-like hook at the other end, the hook being comprised of at least two arcuately shaped tines defining a slot, and a saw blade disposed longitudinally along the portion of the shaft near the end containing said hook.  In its preferred form the shaft is in two approximately equal portions connected by pivotable fastening means to permit the two parts of the shaft to be folded against each other with means to maintain the two parts in rigid end-to-end relationship in use.
Patent CA-1239571-A (CA)
Inventor: WANG JOSEPH Y
IPC: G01N31/22
Filed: 1985-09-11
Granted: 1988-07-26
Abstract: ABSTRACT      Independent reagent matrix zones are created in hydrophobic open celled natural or synthetic material by heating the open celled material along parallel lines at right angles to the length of a reagent test device so as to seal the material at predetermined intervals and thereby form separate reagent matrix areas on the same reagent test device.  This technique results in a reagent test device which eliminates the runover problem which has caused cross contamination between reagent areas and resulted in the failure of reagent test devices to perform properly.
Patent CA-1273730-A (CA)
Inventor: ANIUK LAWRENCE M
IPC: C08L29/04
Filed: 1985-09-24
Granted: 1990-09-04
Abstract: ABSTRACT     An article suitable for use as a body implant is made from a novel comprising  a multiple phase polymer composition comprising:   a)   a first phase which comprises a substantially non-hydrophilic polymeric component; and b)   a second phase which comprises a hydrophilic poly-meric component;   said composition (i) being capable of absorbing water to an extent that it softens with a softening ratio of at least about 3:1 and/or swells with a swelling ratio of at least about 1:1.5; and (ii) when substantially completely hydrated has an energy to break of at least about 1,000 inch-pounds per cubic inch and a 2.5% Secant modulus of less than about 10,000 pounds per square inch.