baber/WOPTO huggingface dataset:
Patent CA-1276408-C (CA)
Title: Pressurised pulp chlorination and chlorine introduction in minute bubbles
Inventor: SHERMAN MICHAEL I
IPC: D21C9/12
Filed: 1985-10-25
Granted: 1990-11-20
Abstract: PRESSURIZED PULP CHLORINATION, AND CHLORINE INTRODUCTION IN MINUTE BUBBLES                 ABSTRACT OF THE DISCLOSURE          A method and apparatus are provided for increasing the efficiency of treatment of a paper pulp slurry with chlorine gas, such as in the bleaching or delignification of deciduous wood chemical pulps, coniferous wood chemical pulps, and non-wood fibrous chemical pulps.  Chlorine gas is intimately mixed with the pulp in a fluidizing mixer, the pulp preferably having a consistency of about 7-12%, and then is passed to a retention vessel.  The discharge of pulp from the mixer to the retention vessel, and from the retention vessel to other treatment structures, is throttled so as to increase the pressure in both the mixer and the retention vessel to above atmospheric, and preferably in the range of about 15-150 psig.  The chlorine gas is added to the mixer through one or more discs of porous materials having pore sizes in the range of about 5-175 microns, such as porous ceramic or sintered metal discs.  The increased pressure during the chlorine treatment, and the introduction of the chlorine gas in the form of minute bubbles, improve the solubility of the chlorine in the pulp slurry and thereby increase the efficiency of treatment.
Patent CA-1283141-C (CA)
Title: Anesthesiology connector
Inventor: NOWACKI CHRISTOPHER
IPC: F16L39/00
Filed: 1986-02-11
Granted: 1991-04-16
Abstract: ABSTRACT OF THE DISCLOSURE            A female anesthesiology connector is provided for connecting a tube supplying anesthesiology gases to an endotracheal tube.  The female connector is provided with a longitudinally extending finger having a bevelled locking tooth thereon for providing a positive securement of the male connector of an endotracheal tube with the present female anesthesiology connector. The finger is on a ring inserted into the body of the female connector and secured in  place by means of sonic or solvent welding, or a suitable adhesive.  The ring and the body together provide an internal groove receiving an O-ring which makes a positive seal with the male connector of the endotracheal tube.
Patent CA-1281410-C (CA)
Title: Color image processor
Inventor: COLLINS GALEN
IPC: H04N1/40
Filed: 1986-04-08
Granted: 1991-03-12
Abstract: COLOR IMAGE PROCESSOR           Abstract of the Disclosure A color image processing system described which provides more realistic hard copy color images from composite video system input signals than preciously available. The image processing system includes a synchronization separator 20 which operates to separate the synchronization pulses from the analog video information supplied. The separator includes an amplifier with a pair of input terminals. The video is coupled to one of the input terminals and a feedback loop coupled between an output terminal and the other input terminal. In this manner the negative synchronization pulses may be amplified while the positive video signals are limited. The extracted sync signal is used to control an analog-to-digital converter 70.  The analog video information is then converted to digital form by an analog-to-digital converter.  The converter operates under control of a time base generator 100, including a programmable delay line 300, which receives synchronization pulses from the synchronization separator, and following a programmable time delay supplies a control pulse to the converter to cause it to sample the analog waveform and convert it to digital format.  The generator 100 employs a delay line 300 to detect the fraction of a system clock period between the sync pulse and the next clock pulse.  The specified number of clock pulses are allowed to elapse.  Then the delay line 300 is used to provide the necessary further delay.  Once the signal is digitized, it is converted from an additive color system to a subtractive one and enhanced before being supplied to the color plotter 8.
Patent CA-1275395-C (CA)
Title: Water timer
Inventor: BRUNINGA KENNETH J
IPC: G04F3/02
Filed: 1986-05-21
Granted: 1990-10-23
Abstract: WATER TIMER                 ABSTRACT OF THE DISCLOSURE          A water timer including a housing having an inlet and outlet through which water flows to drive an impeller and speed reducer used to determine the open time of a valve member.  The valve member is movable in one direction, corresponding with one direction of axial movement of the timer dial, into a water flow position out of engagement with a valve seat and movable in an opposite direction, corresponding with an opposite direction of axial movement of the dial, into engagement with the valve seat into a water shut-off position.  The valve member has a first pressure responsive surface area facing in the opposite direction disposed in communication with water under pressure communicating with the housing inlet and a second pressure responsive surface area facing in the one direction.  A controllable water pressure chamber within the timer housing communicates with the second surface area and through a first series of passages with water under pressure communicating with the first surface area when the valve member is in its water shut-off position.  A biasing arrangement including the relative sizes of the first and second pressure responsive surface areas functions to bias the valve member into its water shut-off position when the dial is in its water shut-off position and a source of water under pressure is communicated with the inlet.  A chamber pressure control is operable in response to the axial movement of the dial in the one direction into its water flow position to communicate the chamber with the outlet thereby changing the biasing arrangement to an extent sufficient to cause the same to bias the valve member from its water shut-off to its water flow position.
Patent CA-1276734-C (CA)
Inventor: MAGNUS GEORGE
IPC: C08G18/00
Filed: 1986-06-17
Granted: 1990-11-20
Abstract: SELF-COMPATIBILIZING POLYESTER POLYOL BLENDS BASED ON POLYALKYLENE TEREPHTHALATE          ABSTRACT         Terephthalate polyester polyol blends comprising reaction products of a combination of polyethylene terephthalate, a polybasic carboxylic acid compound, a low molecular weight diol compound and a compatibilizer compound are compatible with fluorcarbon blowing agents. These polyol blends are produced by a simple heating process and are thereafter blendable with various conventional polyols and other additives to make resin prepolymer blends which can be catalytically reacted with organic isocyanates to produce cellular polyurethanes and polyurethane/polyisocyanurates.
Patent CA-1281560-C (CA)
Title: Fine amorphous metallic wires
Inventor: OGASAWARA ISAMU
IPC: H01F1/14
Filed: 1986-07-22
Granted: 1991-03-19
Abstract: ABSTRACT OF THE DISCLOSURE          A fine amorphous metallic wire having a circular cross section and stability to a bias magnetic field, said wire  being  composed  of  an  alloy  having  the  following composition formula (Co1-aFea)100-x-y-zSixByMnZ wherein  x < 20  atomic%,   7 atomic% < y < 35  atomic%, 7 atomic% < x+y < 35 atomic%, 0.1 atomic% < z < 3 atomic%, and 0.01 < a < 0.1.  The fine amorphous metallic wire has low  magnetostriction,  high  magnetic  permeability,  high saturation magnetic flux density, and excellent toughness, and is stable against a bias magnetic field.   Hence,  it can be used as a material for electromagnetic devices such as a coordinate reading device, a current sensor, an eddy current  sensor,  a  magnetic  sensor,  or  a  displacement sensor.
Patent CA-1286650-C (CA)
Title: Process for preparing a silver-on-carrier catalyst
Inventor: GEUS JOHN W
IPC: C07C45/38
Filed: 1986-10-30
Granted: 1991-07-23
Abstract: ABSTRACT         The invention relates to a process for preparing a silver catalyst on an inert carrier material, which process comprises reductively precipitating metallic silver, from a solution containing silver ions, onto the inert carrier.  The reduction is effected by means of a reducing agent which is an oxidizable metal or metal compound present on the surface of the inert carrier material.  The process ensures a uniform deposition of the silver over the carrier surface and an excellent adherence of the silver to the carrier surface.
Patent CA-1273503-C (CA)
Title: Chain belt construction, load block therefor and methods for making the same
Inventor: OLIVER LARRY R
IPC: F16G5/04
Filed: 1986-11-04
Granted: 1990-09-04
Abstract: ABSTRACT OF THE DISCLOSURE A chain belt construction, a load block therefor and methods of making the same are provided. The chain belt construction comprises a plurality of interleaved sets of links, each set of links having transversely disposed pivot pin means joining its links to the links of the sets of links adjacent thereto, and a plurality of load block means respectively interconnected to certain of the sets of links to be carried thereby. The improve-ment in such chain belt construction is provided by each load block means having means defining tubular opening means therein that telescopically receive the pivot pin means of its respective set of links therein to interconnect that load block means to its respective set of links. Each means that defines its respective opening means has a portion thereof that interlocks with its respective pivot pin means to prevent rotational movement there-between. The load block means has means defining tubular opening means therein so as to be adapted telescopically to receive the pivot pin means of its respective set of links, the means that defines its respective opening means having a portion thereof that is adapted to interlock with its respective pivot pin means to prevent rotational movement therebetween.
Patent CA-1287434-C (CA)
Title: Curable polyorganosiloxane composition
Inventor: SHIRAHATA AKIHIKO
IPC: C09D183/04
Filed: 1986-11-07
Granted: 1991-08-06
Abstract: CURABLE ORGANOSILOXANE COMPOSITION       Abstract Curable organosiloxane compositions exhibiting superior adhesion to a variety of substrates in the cured form comprise a polyorganosiloxane containing at least two alkenyl radicals per molecule, an organohydrogensiloxane, a platinum-containing catalyst and, as the adhesion promoter, the combination of 1) an organosilicon material containing diorganovinylsiloxy, triorganosiloxy, SiO4/2 and alkoxy groups in specified proportions and 2) a silane containing at least two alkoxy groups and either a glycidoxy or epoxycyclohexyl group bonded to silicon.
Patent CA-1277060-C (CA)
Inventor: GENSKE ROGER P
IPC: B32B15/085
Filed: 1986-11-28
Granted: 1990-11-27
Abstract: ABSTRACT OF THE DISCLOSURE    This invention pertains to blends of a first component of a polypropylene, a second component of an ethylene-based copolymer, and a third component which may be an elastomeric polymer.  The blends are useful in making single and multiple layer sheet structures.  The invention further contemplates packages made from sheet structures incorporating layers of blends therein.
Patent CA-1277325-C (CA)
Title: Synthesis of nizatidine
Inventor: JACKSON BILLY G
IPC: C07D277/28
Filed: 1986-12-15
Granted: 1990-12-04
Abstract: Abstract of the Disclosure The present invention provides a process for preparing nizatidine comprising reacting 4-[[(2-amino-ethyl)thio]methyl]-N,N-dimethyl-2-thiazolemethanamine with a 1-alkoxy-N-methyl-2-nitroetheneamine.
Patent CA-1294242-C (CA)
Title: Liquid applicator
Inventor: KONOSE YOSHIOMI
IPC: A46B11/02
Filed: 1987-02-20
Granted: 1992-01-14
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a liquid applicator comprising: (a) a main body having a neck and a liquid reservoir; (b) a longitudinally extending liquid conduit feeding from said reservoir to a pen core; (c) a mouthpiece threadedly connected to the neck of said main body and having a bore therethrough for mounting a pen core therein with an end projecting therefrom for use; (d) a plurality of first spaced ridges extending longitudinally in the bore of said mouthpiece for significant length and defining an inner diameter slightly smaller than the outside diameter of said pen core to frictionally retain said pen core in said mouthpiece; (e) a plurality of second spaced ridges extending longitudinally in the front end portion of said liquid conduit defining an inner diameter smaller than the inner diameter defined by first ridges, the outer forward ends of said second ridges serving as an abutment support for the end of said pen core; and (f) the circumferential spaces between said first ridges and between said second ridges providing ventilation to the exterior for said reservoir and said liquid conduit.
Patent CA-1290704-C (CA)
Title: Air/water distributor underdrain
Inventor: DAVIS THOMAS A
IPC: B01D24/46
Filed: 1987-02-23
Granted: 1991-10-15
Abstract: ABSTRACT          An air/water distributor underdrain assembly for providing a uniform distribution and metering of backwash air and/or water through a filter bed.  The distributor assembly includes a distributor member which defines a distributor chamber for receipt of backwash air and/or water thereinto.  A plurality of first and second spaced apart openings extend through the distributor member.  A shroud extends downwardly into the distributor chamber from each of the first openings in fluid communication with an intermediate portion of the distributor chamber for directing backwash water therethrough.  Backwash air collected in a gas compartment formed in an upper portion of the distributor chamber is directed through the second openings.
Patent CA-1275220-C (CA)
Title: Surgical stapler
Inventor: THORNTON CURTIS W
IPC: B25C5/16
Filed: 1987-03-11
Granted: 1990-10-16
Abstract: SURGICAL STAPLER Abstract of the Disclosure A surgical stapler, preferably in a single use disposable form, comprises a combination of a staple feeding mechanism and a staple forming mechanism secured in a frame and an actuating trigger functionally con-nected to both the staple feeding mechanism and the staple forming mechanism, wherein the staple feeding mechanism includes a rail to guide contained staples serially to a staple forming position and a shuttle in association with the rail as a movable staple retaining cover, the shuttle being functionally connected to the trigger for movement in the same direction and the same time as the staples. This structure provides a reliable surgical stapler in which staples are not likely to jam the staple feeding mechanism.
Patent CA-1300124-C (CA)
Title: Erosion resistant rock drill bit
Inventor: DITZIG JOSEPH R
IPC: E21B10/60
Filed: 1987-05-27
Granted: 1992-05-05
Abstract: EROSION RESISTANT ROCK DRILL BIT                           ABSTRACT       Disclosed herein is an erosion resistant down hole rock drill bit which utilizes a radial distribution of carbide cutter bits or buttons about the exhaust hole. This minimizes carbide wash or removal of base metal which retains the carbide and thereby extends bit life.
Patent CA-1283743-C (CA)
Title: Modified polyolefine
Inventor: BERGSTROM CHRISTER
IPC: C08F255/02
Filed: 1987-05-27
Granted: 1991-04-30
Abstract: ABSTRACT OF THE DISCLOSURE       The present invention relates to a modified polyolefine which has good adhesion to metals and to polar substances.          The polyolefine is admixed with or grafted to fumaric acid.          The fumaric acid may be added at about 0.01-20%, preferably 0.01-1% of the polyolefine weight, while the preferred polyolefine is an ethylene copolymer.
Patent CA-1286023-C (CA)
Title: Reentrant fiber raman gyroscope
Inventor: DESURVIRE EMMANUEL
IPC: G01C19/64
Filed: 1987-06-05
Granted: 1991-07-09
Abstract: ABSTRACT OF THE DISCLOSURE      A re-entrant fiber optic interferometer comprises an optical  fiber,  forming  a  loop  for  recirculating  an optical signal in the loop.   The loop of optical fiber comprises an active material which emits photons at a first wavelength and responds to pumping  in a second wavelength.   Signal  light  at the first wavelength is input to the loop for circulation therein, and pump light at  the  second  wavelength  is  input  to  the  loop  to optically pump the active material to emit light at the first  wavelength.    The  invention  also  includes  a multiplexing coupler which has different coupling ratios for the pump light and the signal light, such that only a fraction of the signal  light is coupled out of the loop on each circulation about the loop, but substantially all of the pump light is coupled out of the loop after a single circulation, thereby suppressing pump phase noise in the loop.
Patent CA-1293316-C (CA)
Title: Fluorescent colored encapsulated liquid crystal apparatus using enhanced scattering
Inventor: FERGASON JAMES L
IPC: G02F1/133
Filed: 1987-06-22
Granted: 1991-12-17
Abstract: ABSTRACT The present invention relates to use of liquid crystal material encapsulated in a containment medium to produce a controlled colored output, for example, in response to the application, removal and variation in an electric field. In one embodiment a non-pleochroic dye is in the containment medium itself and in another embodiment the non-pleochroic dye is in the liquid crystal material itself; and in both cases the dye preferably is fluorescent or a combination of fluorescent and non-fluorescent, and the object is to color light and/or to whiten or to brighten the light emitted out from a display embodying the invention. Incident light impinging on the encapsulated liquid crystal material, which is mounted on, in, or with respect to a support medium, is isotropically scattered in the absence of an electric field, and using the principle of total internal reflection (or optical interference or both) a relatively large part of the isotropically scattered light in the support medium is reflected back to illuminate the scattering liquid crystal material, which isotropically scatters such light again, thus increasing the optical path through the dyed material and, therefore, the coloring, whitening and/or brightening of the light traveling such increased path. Light scattered back to the viewing direction out of the support medium causes the liquid crystal material to appear relatively bright and colored as compared to the background where there is no liquid crystal material or where the liquid crystal material is in parallel alignment in field-on condition, i.e. aligned with respect to an electric field, and, thus, substantially transmissive. Original incident light where there is no liquid crystal material, that light which is isotropically scattered toward the back or non-viewing side of the display and within a certain cone or solid angle, and that light passing through aligned (field-on) liquid crystal material will tend not to be totally internally reflected; such light will pass through the support medium and may be absorbed by a remote black or colored material. Light amplification type of operation may be effected in a sense because the dye is a fluorescent one that fluoresces, isotropically emitting light in response to incident light for possibly other radiation).
Patent CA-1296282-C (CA)
Title: Process for hydrodewaxing hydrocracked lube oil base stocks
Inventor: ZIEMER JAMES N
IPC: C10G65/04
Filed: 1987-08-26
Granted: 1992-02-25
Abstract: ABSTRACT OF THE DISCLOSURE         We disclose a single stage, multilayered cata-lyst system capable of hydrodewaxing and hydrofinishing a solvent-dewaxed lube oil base stock.  In the first layer we catalytically dewax the solvent-dewaxed stock.  In the second layer we hydrofinish the catalytically dewaxed stock.  Our invention also relates to a process for hydro-dewaxing and hydrofinishing a solvent-dewaxed lube oil base stock.
Patent CA-1282804-C (CA)
Title: Air spring with fabric restraining cylinder
Inventor: GREGG MICHAEL J W
IPC: F16F9/38
Filed: 1987-09-11
Granted: 1991-04-09
Abstract: Abstract of the Disclosure AIR SPRING WITH FABRIC RESTRAINING CYLINDER     There is disclosed a rolling lobe fluid spring (10) having an upper retainer (12) and a piston (14) with a tubular air impervious flexible membrane (18) sealingly attached thereto to form the airspring.  A radially inextensible fabric restraining cylinder (40) is provided circumferentially around the outer periphery of the flexible membrane.  The cylinder (40) shrouds the membrane (18) over at least the entire axial working stroke (WA) of the airspring.  The cylinder (40) radially supports and protects the flexible membrane (18).
Patent CA-1341289-C (CA)
Title: Amide complexes
Inventor: GRIES HEINZ
IPC: C07D295/185
Filed: 1987-09-25
Granted: 2001-09-04
Abstract: Compounds of general Formula I   (see formula I) wherein R3 is a saturated, unsaturated, straight- or branched-chain or cyclic aliphatic hydrocarbon residue of up to 16 carbon atoms or, if R4 is a hydrogen atom, a cycloalkyl group or an aryl or aralkyl group optionally substituted by one or several C1-C6-dialkylamino groups or by one or several C1-C6-alkoxy groups, R4 is a hydrogen atom, a saturated, unsaturated, straight- or branched-chain or cyclic hydrocarbon residue of up to 16 carbon atoms, or R3 and R4 jointly mean a saturated or unsaturated 5- or 6-membered ring optionally substituted or containing an O, S, N atom or oxo substituent, and Y is COOX or CONR3R4, are valuable complexing agents, complexes or complex salts, e.g., for use as NMR or X-ray diagnostic image-enhancement agents or radioactive diagnostic agents.
Patent CA-1325801-C (CA)
Inventor: DECH JAMES A
IPC: E21B7/06
Filed: 1987-10-01
Granted: 1994-01-04
Abstract: ABSTRACT OF THE DISCLOSURE     Medium curvature deviated wellbores having a radius of curvature in the range of 200 feet to 400 feet are drilled with  downhole drilling assemblies for drilling the curved wellbore portion and for correcting or holding the horizontal wellbore portion and which are connected to the end of a drillstem made up of elongated elastically bendable drillstem members which may be cyclically compressively stressed during rotation of the drillstem.          The elastically bendable drillstem members are charac-terized by joint forming portions at opposite ends of an elongated tubular body and which are of a diameter which minimizes the tendency for the drillstem to buckle during drilling.  Spaced apart stress bearing sleeves are attached to or integrally formed with the tubular body and are of a diameter greater than the body and preferably equal to the diameter of the tool joint portions.  The drillstem is made up of the elastically bendable compressive service drillstem members extending through the curved and horizontal portions of the wellbore and heavy walled drill pipe or drill collars are provided in the drillstem in the vertical hole portion to impose compressive loads on the drillstem through the curved portion of the wellbore.
Patent CA-1282391-C (CA)
Title: Hydraulic system for remote operable cone crushers
Inventor: VENDELIN JOHN C
IPC: B02C2/04
Filed: 1987-10-05
Granted: 1991-04-02
Abstract: ABSTRACT           A remote operable cone crusher employing all-hydraulic adjust and clamping systems features a hydraulic "intensifier" for the clamp cylinders and an auxiliary pressure maintaining circuit for the adjust cylinders in order to overcome "creep" under load.
Patent CA-1301233-C (CA)
Title: Anti tip shoe
Inventor: PETERMAN ROBERT J
IPC: A47B53/02
Filed: 1987-10-16
Granted: 1992-05-19
Abstract: Abstract of the Disclosure A mobile storage system is provided with safety devices that increase the stability of the movable carriages.  The safety devices include shoe plates mounted to the carriages proximate each carriage wheel and above the rails.  A nylon shoe is attached to the bottom of each shoe plate near the rail.  The shoe plates are adjustable to position the shoes with minimum running clearances with the rails.  Only a small amount of initial tipping causes the shoes to contact the rails and support a carriage against further tipping.  The increased spread between the anti tip shoes compared with the spread between the wheels provides increased resistance to overturning forces by the square of the ratio of the spreads.