baber/WOPTO huggingface dataset:
Patent CA-1297251-C (CA)
Title: Process for forming flakes
Inventor: REVIS JACK W
IPC: C11D1/72
Filed: 1988-05-03
Granted: 1992-03-17
Abstract: PROCESS FOR FORMING FLAKES   Abstract of the Disclosure Flakes of a hydrophilic solid organic material, e.g., polyethylene glycol are formed from a melt of said solid organic material on a belt cooler. The process is improved by wetting the belt cooler with water and/or an organic, low molecular weight, hydrophilic liquid to maintain contact between flake and belt during rapid cooling.
Patent CA-1307654-C (CA)
Title: Cuvette with non-flexing thermally conductive wall
Inventor: HELFER JEFFREY L
IPC: B01L3/00
Filed: 1988-05-04
Granted: 1992-09-22
Abstract: CUVETTE WITH NON-FLEXING THERMALLY CONDUCTIVE WALL                 Abstract of the Disclosure There is disclosed a cuvette constructed with an improved sample fluid thermal time constant, featuring a flexible heat transfer wall.  To prevent such wall from deforming under pressure generated at high processing temperatures, thereby reducing heat transfer efficiency, the opposite wall is constructed to have a flexural strength that is sufficiently less than that of the heat transfer wall.  This causes flexing to occur in the opposite wall, under pressure, rather than the heat transfer wall.
Patent CA-1293337-C (CA)
Title: Secondary electron detector for use in a gaseous atmosphere
Inventor: MANCUSO JAMES F
IPC: H01J37/06
Filed: 1988-05-20
Granted: 1991-12-17
Abstract: SECONDARY ELECTRON DETECTOR FOR USE IN A GASEOUS ATMOSPHERE         ABSTRACT OF THE DISCLOSURE            The invention provides for a device for generating, amplifying and detecting secondary electrons from a surface   of a sample. The device may comprise a scanning electron microscope. The invention also provides for a method for generating, amplifying and detecting second-ary electrons from a surface of a sample.
Patent CA-1317165-C (CA)
Title: Exhaust system for a boat propulsion device
Inventor: GAGE ROGER A
IPC: B63H21/32
Filed: 1988-05-27
Granted: 1993-05-04
Abstract: ABSTRACT          A propulsion device for a boat which mounts throuqh a hole in a bottom surface of a boat includes an exhaust passageway means which connects between an engine positioned inside the boat and a propeller drive having an exhaust passageway therethrough positioned under the boat.          The propulsion device induces a mounting assembly, a steering assembly rotatably connecting the propeller drive to the mounting assembly for steering the propeller drive about a generally vertical axis, and a trimming assembly swingingly connecting the propeller drive to the steering assembly for trimming/tilting of the propeller drive about a generally horizontal axis.  The exhaust passageway includes a flexible portion connecting between the engine and the propeller drive to provide an exhaust connection during steering and trimming of the drive.
Patent CA-1295997-C (CA)
Title: Etherified and esterified starch derivatives and processes for preparing same
Inventor: EASTMAN JAMES E
IPC: C08B31/04
Filed: 1988-05-31
Granted: 1992-02-18
Abstract: Abstract of the Disclosure Cold water soluble etherified or esterified starch derivatives having a 20 rpm Brookfield viscosity of less than 15,000 cps when tested in the form of a 10 weight percent starch solids aqueous solution at 25°C and which forms a transparent film when dried from aqueous solution can be prepared by first preparing a non-crosslinked granular etherified or esterified starch derivative, washing said starch derivative to remove salt by-products therefrom and thereafter solubilizing said starch derivative and thinning same to the desired viscosity level. The resulting starch derivative products are particularly suitable for use in wall covering adhesive formulations and as protective colloids in emulsion polymerization processes.
Patent CA-1299287-C (CA)
Title: Data storage device having a phase change memory medium reversible by direct overwrite and method of direct overwrite
Inventor: STRAND DAVID
IPC: G11B7/2433
Filed: 1988-06-01
Granted: 1992-04-21
Abstract: 1524.1 ABSTRACT OF THE DISCLOSURE Disclosed is method and apparatus for direct, single beam, overwrite of new data over existing date in a phase change optical data storage device.  This eliminates the need for an intermediate erase step. 0110r
Patent CA-1291729-C (CA)
Title: Sealless dispensing mechanism
Inventor: DICKAU EWALD F
IPC: B05C17/005
Filed: 1988-06-02
Granted: 1991-11-05
Abstract: Abstract A simplified fluid dispenser for dispensing precise quantities of fluid without requiring special seals, particularly sliding seals, or springs.  It comprises a housing defining a fluid reservoir, having an inlet for delivery of pressurized fluid to the reservoir, and including a valve seat defining an outlet for dispensing fluid from the reservoir.  A deformable closure member overlies an open end of the housing opposite the outlet and normally biases a valve engageable with the valve seat to the closed position.  When the closure member is selectively deformed, the valve is able to move to the open position to dispense a quantity of the fluid from the reservoir.  When released, the closure member returns to its normal condition, returning the valve to the closed position instantaneously shutting off the dispensing of fluid.  This operation causes the fluid being dispensed to rapidly reverse direction resulting in an immediate termination of flow and elimination of drippage.
Patent CA-1310475-C (CA)
Inventor: CALMETTES LIONEL
IPC: F16L33/02
Filed: 1988-06-14
Granted: 1992-11-24
Abstract: ABSTRACT OF THE DISCLOSURE      This  invention relates to a clamp constituted by a metal band wound on itself, comprising complemen-tary tightening  and/or  joining  means  in  the  vicinity of  each of  its  ends.  The band presents,  in a  zone preferably  remote  from  said  ends,  a  longitudinal slit  thus  defining  two  band  sections,  parallel  and contiguous  with  respect  to  each  other.  On  each  of said band sections is provided at least one corruga-tion projecting outwardly of the clamp, each corruga-tion of one of the band sections being offset circum-ferentially with  respect to each corrugation of  the other band section.
Patent CA-1293855-C (CA)
Title: Rotary kiln
Inventor: PRZEWALSKI ZYGMUNT J
IPC: F27B7/26
Filed: 1988-06-21
Granted: 1992-01-07
Abstract: ABSTRACT OF THE INVENTION         A kiln is disclosed which includes an elongated housing formed by a plurality of interconnected longitudinally extending sections each forming an independent housing supporting that housing module independently of any other module and power means for moving the support means of each housing module into contact engagement therewith for compensating for load variations applied to the support means and uniformly distributing the loading forces imposed thereon by the housing modules and their respective contents.
Patent CA-1304019-C (CA)
Inventor: VOGAN DENNIS J
IPC: B65D75/62
Filed: 1988-08-15
Granted: 1992-06-23
Abstract: ABSTRACT OF THE DISCLOSURE     A pouch and a method and apparatus for forming an easy open pouch in a vertical form-fill-seal process where-in a pouch is formed from a sheet of thermoplastic film and a heat seal between pouches as they are filled serves as the top closure for the lower pouch and a bottom closure for the upper pouch,  the easy open feature being provided by a U-shaped portion having a plurality of seal ribs, and a tear initiation notch.
Patent CA-1315593-C (CA)
Title: Tractor work implement coupler
Inventor: VACHON BERTRAND
IPC: A01B59/048
Filed: 1988-08-25
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE           A tenon-and-mortise coupler for releasably connecting any type of work implement to the front chassis of any conventional tractor.  The tenon part defines an open frame, fixedly secured at its rear end to the front bottom of the tractor chassis, and tapered at its front end.          The mortise part defines a hollow tapered casing, fixedly secured at its small end to the bracket assembly of the work implement and frictionally engageable by the tenon tapered end at its opposite large open end or mouth.  A manually-operated lever is transversely mounted in the tenon part and defines an intermediate offset section carrying a longitudinally-extending latch bar, which is guided for combined longitudinal and vertical movement between a forward and lowered retracted position and a rearward and upper latching position.  The tenon-and-mortise parts are first assembled with the latch bar in retracted position.          Then the lever is rotated to bring the latch bar in latching position in which it engages the rear end of a slot made in the top wall of the mortise part.  A compression spring is located between the lever and the latch bar to constantly bias the latch bar against the rear end of the slot, in order to prevent any play between the tenon and mortise parts.
Patent CA-1316325-C (CA)
Inventor: UEHARA MASATSUGU
IPC: B22D11/053
Filed: 1988-08-26
Granted: 1993-04-20
Abstract: Abstract of the Disclosure A method of oscillating a continuous caster mold at high frequencies comprises disposing a plurality of oscillators having substantially the same oscillating characteristic at appropriate intervals along or in the vicinity of a line where liquid metal contacts an inner lining of a mold, connecting the tip of each oscillator to the inner lining so that the axis of the oscillator extends at right angles to the surface of the inner lining, and supplying power from an oscillation generator to each oscillator so that the oscillation frequencies of any two adjoining oscillators are differentiated within the limit of 2 KHz.  Thus, any two adjoining oscillators oscillate the inner lining at right angles to the surface thereof at mutually differentiated frequencies.                                     .
Patent CA-1339426-C (CA)
Inventor: LAYTON MICHAEL R
IPC: H03D3/02
Filed: 1988-08-31
Granted: 1997-09-02
Abstract: The optical signal in a fiber optic interferometer is phase modulated to provide a carrier signal for phase changes caused by changes in a physical parameter being sensed.  The signal  is  then  demodulated  to  measure  changes  in  the parameter.   A crystal oscillator frequency reference and passive filtering cause the circuit to have low phase noise.          Digital phase shifters provide mixer references that have low phase noise and stable gain.  The signal processing techniques of the present invention are applicable to sensor arrays using a single carrier excitation source, time demultiplexing of individual carrier signals and demodulation of each sensor carrier signal.  This demodulator circuit is also applicable to  frequency-multiplexed approaches,  which utilize direct frequency  modulation  of  the  source,  slightly  unbalanced interferometers,    and    electronic    frequency-division multiplexing.   The passive homodyne technique allows large linear dynamic range of about 100 dB so that both small and large  amplitude  signals  commonly encountered  in acoustic sensing applications may be observed with excellent fidelity.
Patent CA-1321489-C (CA)
Title: Reagent strip handling mechanism
Inventor: DESIMONE JOSEPH P
IPC: G01N33/52
Filed: 1988-09-01
Granted: 1993-08-24
Abstract: REAGENT STRIP HANDLING MECHANISM        Abstract of the Disclosure A quantitative measuring instrument includes a casing with a cavity for a reagent strip handling mechanism.  The mechanism includes a slide with a resiliently biased toggle member for providing snap action of the slide between an open, reagent strip loading position and a closed, quantitative measuring position.  A light seal is mounted on the toggle member that engages each reagent strip in the closed position of the slide.  In a first, alternative embodiment of the instrument, the slide mechanism includes a cam arm that engages cam surfaces on the instrument raising the cam arm to an open, reagent strip loading position from a closed, reagent strip holding position.  In this embodiment the slide can be removed from the instrument and cleaned.  In a second alternative embodiment the slide includes a first detent corresponding to a closed position of the slide and a second detent corresponding to an open position.  A pair of spring fingers are mounted in the cavity of the instrument casing.  One of the spring fingers engages the first detent in the closed position and the second spring finger engages the second detent in the open position providing resistance that defines the two positions.  The slide in this embodiment can also be removed and cleaned.         MILV:007/C4
Patent CA-1338389-C (CA)
Inventor: COOGAN RICHARD GEORGE
IPC: C08F283/00
Filed: 1988-09-14
Granted: 1996-06-11
Abstract: An aqueous polymer dispersion containing a vinyl polymer and a nonionic water-dispersible polyurethane having pendent polyoxyethylene chains, the vinyl polymer having been formed by the free radical polymerisation of at least one vinyl monomer in the presence of an aqueous dispersion of the polyurethane.  The dispersions are useful as coating compositions.
Patent CA-1306789-C (CA)
Title: Paging terminal apparatus with page forwarding capability and methodology therefor
Inventor: NELSON LEONARD E
IPC: H04W88/18
Filed: 1988-11-01
Granted: 1992-08-25
Abstract: ABSTRACT Apparatus and method is disclosed for automatically, or by selective response, call forwarding a message to one or more system pagers(12)which have an acknowledge back capability. In one embodiment, disclosed apparatus automatically forwards a message to another system pager upon the initially called pager failing to acknowledge back within a predetermined time period. Such other pager is determined from a set paging hierarchy list(42)included within the paging terminal apparatus itself. In another embodiment, wherein the system pagers have multiple acknowledge back response capability, a called pager(12)can request the received message be additionally call forwarded to one or more other system pagers in accordance with the particular acknowledge back response chosen by the called pager user.
Patent CA-1308881-C (CA)
Title: Cord cinching device
Inventor: BATEMAN BRIAN
IPC: F16G11/00
Filed: 1988-12-19
Granted: 1992-10-20
Abstract: ABSTRACT OF THE DISCLOSURE           The disclosure herein describes a device for cinching a cord; it comprises an outer body, having a cord entrance and a cord exit,and an inner body having a channel allowing the cord to extend from the entrance to the exit and a pair of opposite gripping surfaces which serve to secure the cord in a cinched condition.          A finger actuated unlatching slide carries a stirrup which releases the cord from the gripped surfaces.
Patent CA-1318025-C (CA)
Title: Method of testing spliced portion of optical fibers
Inventor: YAMADA TAKESHI
IPC: G02B6/12
Filed: 1988-12-19
Granted: 1993-05-18
Abstract: Abstract of the Disclosure In a method of testing a spliced portion of exposed fiber portions of optical fibers, the optical fibers are arranged with each other in line so that ends of the exposed fiber portions are spaced apart from each other by a predetermined distance.  The ends of the exposed fiber portions are heated and melted by discharge heating.  The optical fibers are then moved in the abut-ment or closing directions by a predetermined distance, so that the ends of the exposed fiber portions abut against each other to form a spliced portion.  The mini-mum outer diameter value d of the spliced portion is measured.  Ratio d/D of minimum value d to value D of the outer diameter of exposed fiber portion is calcu-lated.  Spliced portions having splicing defects can be detected by detecting of spliced portions having ratio d/D of less than 1 (d/D < 1).  That is, spliced portions having ratio d/D of less than 1 (d/D < 1) are regarded as splicing defects.
Patent CA-1338480-C (CA)
Inventor: COTTRELL PETER ROXBY
IPC: H01Q1/34
Filed: 1989-01-10
Granted: 1996-07-23
Abstract: A structure comprises a first component subject to loading and connected to a second component via a load transmitting member so that the loading exerted by the first component is imposed on the second component.  The first component includes a surface secured to a complementary first surface of said load transmitting member and the second component includes a surface secured to a complementary second surface of said load transmitting member.  The load transmitting member and the second component are formed of materials having relatively superior and inferior mechanical properties, respectively and the area of said surface of the second component is greater than the area of said surface of the first component. The first component may be an antenna and the second component a radome for a submarine formed of, for example, syntactic foam.  The load transmitting member may be formed from fibre-reinforced plastics material.
Patent CA-1298276-C (CA)
Title: Verin de poussee
Inventor: GAGNON PIERRE
IPC: B66F3/08
Filed: 1989-01-26
Granted: 1992-03-31
Abstract: titre: VERIN DE POUSSEE                     PRECIS DE LA DIVULGATION          Ce tube  télescopique (10)  est constitué d'une première  et  d'une  seconde  bandes  continues  (32, 36) enroulées   respectivement   en   spirale   et  de  façon hélicoïdale, avec  les tours  de chaque  bande reposant à plat les uns contre les autres dans la position rétractée du tube.  Les tours des  bandes respectives  sont à angle droit les  uns des  autres.   Pour allonger  le tube, les tours de la  première  bande  sont  espacés  les  uns des autres,  et  les  tours  de  la second bande sont insérés entre les tours espaces de la première bande,  de façon agir  comme  espaceurs  pour  ces  derniers  tours.    Un mécanisme y est décrit lequel produit l'allongement et la rétraction du tube lequel est utilisé surtout en tant que vérin de poussée (10).     Figure # 6
Patent CA-1321370-C (CA)
Title: Spray gun
IPC: B05B15/06
Filed: 1989-02-02
Granted: 1993-08-17
Abstract: ABSTRACT OF THE DISCLOSURE     A spray gun operable by low pressure high volume air is described.  The spray gun (10) comprises an air cap (128) formed with a central spraying aperture and a fluid nozzle (70) projecting toward the spraying aperture, the profile of the nozzle is a plain frustum of a core terminating at a small front face bounding an orifice through which fluid is discharged.  The arrangement being such that in operation a flow of atomizing air that emerges through a gap between the nozzle (70) and the air cap (128) attaches to the nozzle (70) and to an emergent fluid jet which assumes a conical form that is a continuation of the nozzle surface and changes to a parallel jet before it breaks up into atomized droplets.
Patent CA-1313427-C (CA)
Title: Hermetic package for integrated circuit chips
Inventor: HUBBARD DOUGLAS A
IPC: H01L23/13
Filed: 1989-03-03
Granted: 1993-02-02
Abstract: HERMETIC PACKAGE FOR INTEGRATED        CIRCUIT CHIPS             ABSTRACT OF THE DISCLOSURE        The hermetic package (10) has an interior recess (46) for receipt of a semiconductor chip.  The recess is square and set at 45° with respect to the rectangular exterior of the package.  The ceramic layers which make up the package carry conductive planes thereof with the interior opening stepped to provide connection points. The lowest layer having a chip opening therein may be left out of the assembly for providing a larger chip opening recess.
Patent CA-1328245-C (CA)
Inventor: BONTEMPS RAYMOND
IPC: A61K8/98
Filed: 1989-03-16
Granted: 1994-04-05
Abstract: La présente invention concerne un coffret contenant les substances cosmétiques déshydratées placées dans un étui et des ampoules de sérum physiologique ou tout autre soluté. Les substances conservées à température ambiante sont imprégnées de sérum avant d'être portées à la température de congélation avant emploi. L ' étui plastique isotherme contient la substance et deux ampoules de sérum logées à part dans un coffret.
Patent CA-1322106-C (CA)
Title: In-situ heating to detoxify organic-contaminated soils
Inventor: BUELT JAMES L
IPC: E02D3/11
Filed: 1989-03-30
Granted: 1993-09-14
Abstract: Abstract A method and apparatus for decontaminating ground areas where toxic chemicals are buried com-prises disposition of a plurality of spaced elec-trodes in the ground to be treated and application of a voltage across the electrodes for bringing about current flow through the ground.  Power delivered to the ground volatilizes the chemicals which are collected and directed to a gas treatment system.  The preferred form of the invention employs high voltage arc discharge between the electrodes for heating a ground region to rela-tively high temperatures at relatively low power levels.
Patent CA-1323868-C (CA)
Inventor: DOTY GERALD A
IPC: B60R22/44
Filed: 1989-03-31
Granted: 1993-11-02
Abstract: ABSTRACT OF THE DISCLOSURE          An automotive safety belt retractor comprising a remotely-operable, electromechanical tension-relieving system.  The tension-relieving system may be shifted either into or out of tension-relieving mode by a conveniently located manual switch.  A second, automatic switch shifts the retractor out of tensionless mode after termination of use of the associated belt.
Patent CA-1338132-C (CA)
Inventor: PELLEGRINI GIUSEPPE
IPC: C09J7/50
Filed: 1989-05-26
Granted: 1996-03-12
Abstract: The present invention refers to a self-adhesive tape comprising an olephinic polymer or copolymer support,  the support has an adhesive side and a back side, the adhesive side supports an adhesive substance layer possibly with an interposed anchoring layer. The self-adhesive tape according to the present invention does neither comprise a releasing layer applied on the back side thereof, nor has been treated on the back side and has a low noise while being quickly unrolled.
Patent CA-1318116-C (CA)
Inventor: SASAKI YASUO
IPC: B32B5/02
Filed: 1989-06-05
Granted: 1993-05-25
Abstract: ABSTRACT OF THE DISCLOSURE     A multiaxial nonwoven fabric is disclosed which is comprised of a selected warp material and a multiplicity of selected continuous yarns assembled in a specified lay pattern and bonded on to the warp material.  Each of the yarns is oriented in a scalene or right angled triangle shape, and the resulting yarn assembly is built of intersections at least in warp, weft and oblique axes, whereby structural strength and dimensional stability are greatly improved.  A method and an apparatus are also disclosed for producing the fabric.
Patent CA-1326557-C (CA)
Inventor: MICKLER BRIAN ELLIS
IPC: G01P5/10
Filed: 1989-06-15
Granted: 1994-01-25
Abstract: ABSTRACT OF THE DISCLOSURE           A mass flowmeter for measuring velocity of a flowing fluid employs a thermal sensor.   The sensor generates heat when supplied with electrical power.  A heat sink is located in the fluid flow directly across from the sensor perpendicular to the flowing  fluid. Electrical power is supplied to the sensor to cause a thermal flux to flow from the sensor to the heat sink. The  flowing  fluid  modulates  this  flux.    A  circuit measures the temperature of the sensor and computes the velocity of the flowing fluid from that measurement.
Patent CA-1337062-C (CA)
Inventor: MCCOWAN JAMES L
IPC: D21H11/00
Filed: 1989-06-29
Granted: 1995-09-19
Abstract: A screening system incorporated into the system of sawdust collection for paper producing pulp.  An upper and lower range of the sawdust particles is designated as between smaller, strength-inhibiting  size particles and larger strength-enhancing size particles.  A screen is provided to screen out the smaller size particles.  The screen is made out of stainless steel to avoid rusting and corroding and also to more readily pass the moistened smaller size particles.  The screen is sloped and agitated to induce shuffling of the sawdust mixture, the process of which results in a separation of about 50% of the particles as rejected smaller size particles and 50% as acceptable larger size particles desirable for paper producing pulp.