baber/WOPTO huggingface dataset:
Patent CA-1125247-A (CA)
Title: Electrical machine with an axial-flow fan
Inventor: DOMITROVIC JOSIP
IPC: H02K9/06
Filed: 1979-06-05
Granted: 1982-06-08
Abstract: ABSTRACT OF THE DISCLOSURE           An electrical machine with an axial-flow fan and a two-part ventilator encasing is disclosed.  One part of the ventilator encasing is non-moveable with respect to the fan blade of the axial-flow fan.  The second encasing part is moveable with respect to the fan blade, and can be moved from a first position in which the moveable encasing part is adjacent to the fan blade to a second position axially displaced from the first position.  The axial movement of the moveable encasing part facilitates maintenance and disassembly work on the machine which require a significant clearance between the fan blade and the encasing. The moveable encasing part is moveably mounted on a bearing bracket associated with the shaft of the rotor of the machine.          The shaft of the rotor is used to coaxially position the moveable encasing part with respect to the axial-flow fan and the axial-flow fan blade.  Means are provided to lock the moveable encasing part in the first axial position, and to maintain the quality of a seal between the moveable and non-moveable encasing parts during machine operation.
Patent CA-1123118-A (CA)
Inventor: FRASER DAVID B
IPC: H01L21/318
Filed: 1979-08-23
Granted: 1982-05-04
Abstract: FABRICATION OF INTEGRATED CIRCUITS UTILIZING THICK HIGH-RESOLUTION PATTERNS            Abstract of the Disclosure The present invention relates to a method of processing surface portions of a structure in a high-resolution manner with good line width control. The method comprises utilizing a relatively thin uniform-thickness layer of material and establishing a pattern therein definitive of the pattern in accordance with which the surface of the structure is to be processed. The method includes the steps of interposing a relatively thick layer of material between the relatively thin layer and the surface of the structure, processing the relatively thick layer employing the relatively thin patterned layer as a mask to form in the relatively thick layer a pattern having near vertical walls and substantially no under-cutting.  This pattern corresponds to the pattern of the relatively thin layer.  The surface of the structure is then processed, utilizing the relatively thick patterned layer as a mask therefore.
Patent CA-1135884-A (CA)
Inventor: HONGU MASAYUKI
IPC: H03J7/08
Filed: 1979-10-25
Granted: 1982-11-16
Abstract: ABSTRACT OF THE DISCLOSURE           An AFT circuit in which a frequency discriminated video intermediate frequency signal is supplied to a capacitor and a voltage across the capacitor is supplied to a variable reactance element of a tuner as an AFT voltage is disclosed. In this case, the AFT circuit includes a level comparing circuit for comparing the voltage across the capacitor with a reference voltage, a first switching element which is controlled by the level comparing circuit and forms a charging path for the capacitor, a second switching element which is controlled by the level comparing circuit and forms a discharging path for the capacitor, and a third switching element which will make the first and second switching elements OFF upon an AFT operation.
Patent CA-1139763-A (CA)
Title: Procede d'obtention de nouveaux  aryltrifluoroethanols
Inventor: VINCENT MICHEL
IPC: A61K31/445
Filed: 1979-10-29
Granted: 1983-01-18
Abstract: La présente demande de brevet se rapporte à un procédé d'obtention de nouveaux aryltrifluoroéthanols et plus spécifiquement des .alpha..alpha..alpha.-trifluoro (aminoaryl) éthanols de formule générale I <IMG> (I) dans laquelle Z représente un radical alcoyle, cycloalcoyle, pipéridyle substitué ou un reste acyle, ou de l'acide nicotinique, Ar représente un radical phényle, et R représente de l'hydrogène ou un radical alcoyle inférieur dans lequel on soumet une fluoroarylcétone à l'action d'une amine ou de l'ammoniaque pour former le dérivé amine correspondant que l'on réduit ou transforme en dérivé thiocétonique que l'on réduit ensuite. Les composés obtenus par le procédé de l'invention ont des propriétés pharmaceutiques intéressantes qui les rendent aptes à être les principes actifs de compositions à effet analgésique. antipyrétique et/ou anti-inflammatoire.
Patent CA-1112916-A (CA)
Inventor: SUNG PEI
IPC: A61C13/00
Filed: 1979-11-09
Granted: 1981-11-24
Abstract: ABSTRACT OF THE DISCLOSURE         The invention relates to dental constructions such as bridges, crowns and the like comprising a metal core and porcelain or other tooth simulating material bonded thereto.      The metal core is an alloy having excellent physical properties for dental applications, having a fusion temperature with the range of about 2050° to 2250°F, a coefficient of expansion of from about 13.6 x 10-6 in/in/°C to about 13.8 x 10-6 in/in/°C, good corrosion resistance when compared with similarly cast gold or other commercial nonprecious metal dental alloys and good oxidation resistance.  The alloy has as casted, a tensile strength of at least 90,000 p.s.i., an elongation of about 0.5 to 5.0%, a Rockwell C hardness within the range of about 25 to 33, and good bonding to porcelain.
Patent CA-1135493-A (CA)
Inventor: LAM LEO K
IPC: C09K8/16
Filed: 1979-11-30
Granted: 1982-11-16
Abstract: ALUMINUM HYDROXIDE GEL SYSTEM            ABSTRACT OF THE DISCLOSURE         A1(OH)3 is added to a drilling fluid system together with other optional additives such as carboxymethyl cellulose, bentonite, polymer, potash, barite, etc., and acts as a primary viscoxifier.  The principal advantage is due to the fact that it is an amphoteric material, i.e. it is soluble in both acid and alkaline conditions, but is insoluble in neutral or moderate pH conditions.  This means that the entire mud system and its filter cake are completely acid or strong alkali soluble so that the entire colloidal suspension can be changed to a clear fluid and the filter cake completely dissolved by simply lowering or raising the pH of the system, a characteristic that is particularly desirable if formation damage is to be avoided and when the drill string is differ-entially stuck.
Patent CA-1135586-A (CA)
Inventor: DUTCHER ROBERT G
IPC: A61N1/05
Filed: 1980-01-04
Granted: 1982-11-16
Abstract: III.  ABSTRACT          A body implantable lead and a stiffening stylet with a flexible tip for imparting rigidity to the lead to facilitate attachment of the lead to an internal body organ and for transmitting torque to the distal end of the lead. A flexible tip stiffening stylet is provided for insertion into a lumen in the lead extending from a pin at its proxi-mal end along the length of the lead conductor to the electrode.  At the proximal end of the stylet, a guide and rotation control device is provided to aid in insertion of the lead and stylet and to facilitate rotation of the stylet to permanently attach the electrode at the distal end to a body organ through endothelial tissue.
Patent CA-1133385-A (CA)
Inventor: SETTERBERG JOHN R JR
IPC: E21B37/08
Filed: 1980-02-08
Granted: 1982-10-12
Abstract: ABSTRACT OF THE DISCLOSURE         A well tool for depositing a gravel pack into an annulus formed between a casing string and the lower portion of a production tubing string.  The well tool includes a sliding sleeve valve which can be shifted to allow communication of a gravel pack slurry to the annulus through lateral ports in the sleeve valve. The sleeve valve includes shoulders which extend to engage a shifting tool preventing removal of the shifting tool from the sleeve valve with the lateral ports open.  The sleeve valve allows improved methods to be used to compress the gravel pack and remove undesired fluids from the gravel pack.  Methods are disclosed to position the sleeve valve to allow the gravel pack slurry to flow into the annulus or to isolate the annulus and compress the gravel pack.  The preferred well installation for using this invention includes a production packer with the sleeve valve and a gravel pack screen attached to the lower end of the packer.  The packer is positioned at a preselected lo-cation within the casing string and a production tubing string can be engaged with the upper end of the packer after the gravel pack has been deposited and the sleeve valve has be closed.
Patent CA-1142628-A (CA)
Inventor: ANDERSON DALE L
IPC: B65C9/42
Filed: 1980-02-15
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE     The invention resides in utilizing a servo motor to drive the label feed and employing a control system for the servo motor which is responsive to the rate of feed or speed of the surface to be labelled as it is advanced to the labeller.  The control system on receiving an instruct-to-label signal accelerates the servo motor smoothly from zero to the desired labelling speed while the surface to be labelled is advanced toward the labeller a predetermined distance and on receiving an end to labelling signal decelerates the servo motor smoothly from labelling speed to zero while the label feed is advanced a predetermined distance.  The arrangement is such that upon an instruct to label signal being fed to the control system at a predetermined position of advance of the surfae relative to the labeller the labeller will accelerate a label from a predetermined start position and deliver same to touch down on the surface to be labelled at the precise desired point with the label moving at the same speed as the surface and upon an end to labelling signal generated by a label feed sensor being fed to the control system the labeller will decelerate to bring the next label to be delivered to said predetermined start position in preparation for the next instruct-to-label signal.
Patent CA-1156795-A (CA)
Inventor: NEWELL RICHARD G
IPC: C09D175/14
Filed: 1980-03-12
Granted: 1983-11-08
Abstract: Abstract of the Disclosure Radiation polymerizable polyetherurethane-acrylates having pendent fluorocarbon substituents are disclosed.          These novel compositions of matter may be radiation polymerized, e.g., by electron beam, actinic light or heat, to a light transmissive material.  The fluorocarbon substituent of the disclosed polyetherurethane-acrylates generally have the formula -W-Rf, wherein W is a divalent connecting moiety and Rf is a highly fluorinated, preferably perfluorinated, aliphatic, aryl or alkaryl radical.  These compositions have increased shelf life, may be utilized as 100% solids, and their time and extent of curing may be precisely controlled.      These novel radiation curable compositions are particularly useful for speciality application, such as in joining electro-optical components, and as a protective coatng.
Patent CA-1140298-A (CA)
Inventor: QUINN CLAYTON B
IPC: C08G63/64
Filed: 1980-04-24
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE A process is disclosed for producing copolyester-carbonates by direct polymerization of a dihydric phenol and an acid dichloride at a single pH profile level.
Patent CA-1129882-A (CA)
Inventor: KAUFMANN RUDOLF
IPC: A01N37/18
Filed: 1980-06-11
Granted: 1982-08-17
Abstract: ABSTRACT OF THE DISCLOSURE The present invention relates to new substituted benzamides of the formula wherein R represents a vinyl or ethinyl radical. The inven-tion also relates to the use of such compounds as herbicides per se, or in combination with other pesticidal or herbicidal substances. Preferably, they are used in the form of liquid or solid mixtures, or liquid or solid solutions. The invention also relates to a process of making the herbicides.
Patent CA-1177228-A (CA)
Inventor: BIOLIK FELICJAN
IPC: C04B35/56
Filed: 1980-07-07
Granted: 1984-11-06
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a kind of corrosion which has not yet been considered of products made of silicon carbide which are used at elevated temperatures and to a method of preventing this kind of corrosion which begins already at a moderate temperature of about 550°C and is caused by the formation of carbon monoxide in the pores inside the silicon carbide products when there is a limited penetration of oxygen into these pores.  The disclosed method of preventing this kind of corrosion consists in shielding part of the surface of the mentioned silicon carbide products with perfectly gas tight shields or with a protective atmosphere or inversely in enhancing the access of oxygen into the pores of the mentioned products thus diluting the carbon monoxide being formed, by enlarging the number of open pores so that an open porosity of the product exceeding about 40 per cent is reached or by providing uniformly distributed channels in the silicon carbide product, the total volume of channels being at least about 10 per cent of the outer volume of the product.
Patent CA-1129609-A (CA)
Title: Method for oil-treating insoluble sulfur
Inventor: YOUNG RANDALL A
IPC: C08K9/00
Filed: 1980-07-29
Granted: 1982-08-17
Abstract: METHOD FOR OIL-TREATING                         INSOLUBLE SULFUR                              ABSTRACT                  Processing oil used to treat insoluble sulfur is mixed with iodine to inhibit its effect on the reversion rate of the insoluble sulfur.
Patent CA-1132197-A (CA)
Inventor: MORRIS DARRYL C
IPC: G01R19/22
Filed: 1980-07-30
Granted: 1982-09-21
Abstract: PRECISION RECTIFIER CIRCUITS            Abstract of the Disclosure A precision rectifier circuit includes two differential amplifiers each having a negative feedback path including a diode.  Two pnp transistors have their base-emitter paths connected in parallel with the respective diodes and their collectors connected together and via an output resistor to ground.          An a.c. signal to be rectified is applied to non-inverting inputs of the amplifiers, whose inverting inputs are interconnected via a resistor in series with a capacitor, to develop a unipolar output voltage across the output resistor.  The capacitor renders the output voltage independent of input offset voltages of the amplifiers.  The transistors can comprise Darlington-connected transistors to avoid the need for matching.     - i -
Patent CA-1097719-A (CA)
Inventor: SCHWARTZ LEON J
IPC: G01D15/16
Filed: 1980-08-15
Granted: 1981-03-17
Abstract: ABSTRACT OF THE DISCLOSURE      A micro computerized, miniature postage meter comprises an ink jet printing device adapted to project ink droplets onto a document.  A micro computer, which performs the control and data processing functions of the meter, includes a logic circuit programmed to actuate the ink jet printing device to project ink droplets on the document in a postage indicia forming pattern.          In the preferred form of the postage meter, the ink jet printing device is mounted to be moved in close operative proximity rela-tive to the document and the logic circuit is programmed to sequentially actuate the printing device during this relative movement.  The rate of movement of the printing device relative to the document is observed by an optical monitor, mounted with the printing device.  The micro computer also includes a clock circuit, connected to the optical monitor, that computes the instantaneous rate of relative movement of the printing device and document and then generates a feedback signal to the logic circuit to coordinate the instantaneous rate of actuation of the printing device to the computed instantaneous rate of relative printing device-document movement.  A postage memory register stores a purchased amount of postage and is addressable by the logic circuit to reduce the stored amount of postage by the amount printed during each meter use.  A disabling lock-out circuit disables the meter when postage stored in the memory register is depleted to a predetermined minimum amount.
Patent CA-1106972-A (CA)
Inventor: BARLOW GEORGE J
IPC: G11C29/00
Filed: 1980-08-27
Granted: 1981-08-11
Abstract: Apparatus and method are included in the main memory of the data processing system which receives data from a plurality of input/output devices connected to a common bus.  During a write cycle of operation, a device applies a plurality of data byte signals together with associated parity bits for writing into an addressed storage location of memory.  Error detection and correction encoder circuits are connected to receive the data bits and parity bits and from them generate check code bits which are coded to signal selectively the presence of an uncorrectable error condition in accordance with the parity bits from a given source.  During a read cycle of operation, error detection and correction decoder circuits connected to the memory in response to the data and check code bits read out from an addressed location are operative to generate a number of syndrome bits having a predetermined characteristic for indicating the existence of an uncorrectable error condition when the parity bits associated with data signals when written originally into memory if checked would have indicated that the data was in error.
Patent CA-1148142-A (CA)
Inventor: MAKABE OSAMU
IPC: A61K31/545
Filed: 1980-09-12
Granted: 1983-06-14
Abstract: ABSTRACT OF THE DISCLOSURE Cephalosporin compounds, intermediate compounds therefor, and processes for preparation thereof are described; the compounds have the formula (I)   (I) wherein R1 and R2 can each represent hydrogen, a hydroxyl group, a lower alkoxy group, or a substituted or unsubsti-tuted phenylalkoxy group; R3 represents hydrogen or a lower alkyl group; R4 represents hydrogen or a hydroxyl group; and R5 represents     ,            ,          ,            ,         or   wherein R6 is hydrogen, a lower alkyl group, an aminoalkyl group, an aminoaralkyl group, a -(CH2)n-SO3Na group, or a -(CH2)n-COR9 group [wherein R9 is a hydroxyl group, an OM group (wherein M is an alkali metal), an alkoxy group, or an    group, (wherein R10 and R11, which may be the same or different, can represent hydrogen or an alkyl group], and n is 0 or an integer of from 1 to 4; R7 is hydrogen, a lower alkyl group, an amino group, or a substituted or unsubstituted aryl group; and R8 represents hydrogen or a lower alkyl group; or, a pharmaceutically acceptable salt thereof.
Patent CA-1143244-A (CA)
Inventor: GANSSER ROBERT E
IPC: B01D19/04
Filed: 1980-10-16
Granted: 1983-03-22
Abstract: DEFOAMING COMPOSITION              Abstract of the Disclosure A defoaming composition for controlling and suppres-sing foam and dispersed air in aqueous systems.  The composi-tion of this invention is particularly useful in pulp and paper mill operations and comprises: a)   a polyoxyethylene adduct of a polyoxypropylene hydrophobic base, said hydrophobic base having a molecular weight of about 3500 to 4500 and an oxyethylene content of about 2 to 20 percent by weight of the total molecule, b)   a water insoluble solvent, c)   a normally solid fatty acid amide, and d)   a fatty alcohol mixture which may also include other hydrocarbons.        In addition to the above, the composition may include hydro-phobic silica particles.
Patent CA-1153182-A (CA)
Inventor: MARTIN JEAN
IPC: E04B2/74
Filed: 1980-10-24
Granted: 1983-09-06
Abstract: ABSTRACT OF THE DISCLOSURE     The present invention relates to an assembly of pre-fabricated wooden elements for the erection of a framework in a construction, such as wall or partition, and constituted by wooden strips or mounts of constant section pierced with holes at modular intervals for constituting mortises; spacer pieces constituted by segments of wood pierced with orifices forming mortises at the same intervals; connecting tenons or pegs adapted to penetrate in said mortises; two strips being joined, to form a framework element which is either horizontal (longitudinal girder) or vertical (upright), by said spacer pieces which are suitably spaced apart to ensure connection in spaced-apart relationship of the two assembled strips; certain of the framework elements comprising a spacer piece projecting at one end to penetrate in the inner space separating the two strips of an adjacent element to be assembled at any angle, and preferably a right angle, the projecting end of this spacer piece comprising an orifice adapted to come into register with the orifices of the strips of the element to be assembled, to receive a connecting peg.
Patent CA-1149078-A (CA)
Inventor: PROUD JOSEPH M
IPC: H01J65/04
Filed: 1980-10-30
Granted: 1983-06-28
Abstract: 22,142 Abstract of the Disclosure Light source wherein high frequency power is capaci-tively coupled to a low pressure discharge includes at least one metallized power coupling conductor.  A dis-charge lamp includes an envelope which is typically pear-shaped with a re-entrant cavity.  The lamp envelope encloses a fill material which forms during discharge a plasma which emits ultraviolet radiation and typically includes on its inner surface a phosphor coating.  An outer conductor is disposed around the outer surface of the lamp envelope.  A conductive coating disposed on the inner surface of the re-entrant cavity forms the inner conductor.  The outer conductor can be a conductive mesh or can be a conductive coating disposed on the outer surface of the lamp envelope in a pattern which permits light to escape from the lamp.  When the conductive coat-ing of the inner conductor is substantially more than one skin depth in thickness at the frequency of operation, the re-entrant cavity is substantially field-free and can be used to house power source circuitry.  When the conduc-tive coating of the outer conductor is substantially more than one skin depth in thickness at the frequency of operation, the light source is prevented from radiating high frequency power.  A high frequency power source can be included in the light source.
Patent CA-1140540-A (CA)
Inventor: SHUMAN ROBERT T
IPC: C07K14/70
Filed: 1980-12-11
Granted: 1983-02-01
Abstract: Abstract of the Disclosure Compounds of the formula     (I) and pharmaceutically acceptable non-toxic acid addition salts thereof, in which L and D define the chirality;           R1 is hydrogen or C1-C3 primary alkyl; R2 is C1-C4 primary or secondary alkyl, allyl, cyclopropylmethyl, C1-C2 hydroxyalkyl, or -(CH2)m-U-CH3 in which U is -S- or   and m is 1 or R3 is cyclopropylmethyl or allyl; and Z is -CH2OR4, -?-NH2, or -?-OR5, in which R4 is hydrogen, acetyl, or acetoxymethyl and R5 is C1-C3 alkyl; are useful analgesic agents.  These compounds of formula I are prepared by deblocking the correspondingly blocked tetrapeptide of formula I.
Patent CA-1165819-A (CA)
Inventor: COLLIN CLAUDE
IPC: H04B7/12
Filed: 1981-01-27
Granted: 1984-04-17
Abstract: A DIVERSITY RADIO TRANSMISSION SYSTEM HAVING A SIMPLE AND ECONOMICAL STRUCTURE     Abstract of the Disclosure In a system for frequency-diversity transmission, separate and distinct frequency carriers are obtained from the frequency modulation of an oscillator by a pure fre-quency with an index such that a certain number of Bessel lines thus obtained constitute a corresponding number of separate carriers.  All the carriers are sub-sequently modulated by the information, then power-amplified in a single amplifier having a peak power equal to that of a single signal whose effective power would be the sum of those of the separate carriers.  By means of this system, equipment for radio communication by tropo-spheric or ionospheric scatter propagation can be con-structed in a simple manner and at low cost, with a high diversity order.
Patent CA-1141931-A (CA)
Inventor: THIIS-EVENSEN HARALD
IPC: E04D1/26
Filed: 1981-02-26
Granted: 1983-03-01
Abstract: Abstract An improved element for the production of roofs comprises a shingle-element (2) secured to a rigid support (1), which will form part of the roof structure. With said element it is possible to mount a finished roof boarding provided with roof shingle. To enable rational packing of such elements the underside of said rigid element is provided with a longitudinal recess (4) which renders it possible to pack elements in pairs without said elements adhering, since said recess is adapted to receive an adhesive strip on the under-side of shingle (2) on the other element without the occurrence of any adhesive contact.