baber/WOPTO huggingface dataset:
Patent CA-2040033-A1 (CA)
Title: Storage tank dehydration system
Inventor: WALCOTT WILLIAM R
IPC: B01D53/26
Filed: 1991-04-09
Abstract: STORAGE TANK DEHYDRATION SYSTEM                   ABSTRACT OF THE DISCLOSURE         The specification discloses a storage tank dehydration apparatus for connection to the air inlet pipe of the tank, having a polymeric quick connect coupling with a through passage and threads at the upper portion thereof, threadably attached to the air inlet pipe.  The lower portion of the coupling has an axial female cavity with pivotal cam lock levers at the exterior of the coupling, and cam surfaces extendable into the female cavity to engage a peripheral groove on the neck at the upper end of a molded polymeric bottle.  The bottle has an internal chamber for desiccant, the chamber being defined by a smooth, polymeric wall.  Near the bottom of the bottle are air inlet ports and a lower liquid drain outlet.
Patent CA-2040127-A1 (CA)
IPC: B44D3/12
Filed: 1991-04-10
Abstract: A paint brush holder to be attached to a paint can. The holder is an open topped container having an inner wall to conform to the outer surface of the paint can.  The holder is suspended from the paint can.  A brush scraper is attached to the open topped container to extend downwardly into the paint can.  Projections on the brush scraper allow the removal of paint from a brush moved across the projections.  The scraper may be removably attached to the open topped container or may be formed integrally with that container.
Patent CA-2040629-A1 (CA)
Title: Wavelength conversion by quasi phase matching and the manufacture and use of optical articles therefor
Inventor: BIERLEIN JOHN D
IPC: G02B6/00
Filed: 1991-04-17
Abstract: TITLE WAVELENGTH CONVERSION BY QUASI PHASE MATCHING     AND THE MANUFACTURE AND USE OF OPTICAL           ARTICLES THEREFOR ABSTRACT OF THE DISCLOSURE Articles and process for wavelength conversion are disclosed which use a series of aligned sections of optical materials for wavelength conversion selected from materials having the formula K1-xRbxTiOMO4 where x is from 0 to 1 and M is selected from P and As and materials of said formula wherein the cations of said formula have been partially replaced by at least one of Rb+, Tl+ and Cs+, and it least one of Ba++, Sr++ and Ca++.  The series of sections is characterized with regard to a change in nonlinear optical coefficient, section length, and section .DELTA.k (i.e. the difference between the sum of the propagation constants for the incident waves and the sum of the propagation constants for the waves generated).  The sections are selected such that the sum for the series of the product of the length of each section with the .DELTA.k is equal to about 2.pi.N (where N is an integer other than zero) and the nonlinear optical coefficient for at least one section is changed relative to the nonlinear optical coefficient for at least one adjacent section.  Also disclosed is a process for preparing a channel waveguide for wavelength conversion systems wherein areas along a portion of a crystal substrate surface used for forming the desired channel are alternately masked and unmasked during cation replacement by immersion in a molten salt.
Patent CA-2042737-A1 (CA)
Inventor: FLANAGAN DENISE M
IPC: A61P25/28
Filed: 1991-05-16
Abstract: .alpha.-Oxopyrrolo[2,3-b]indole acetic acids, esters, amides and related analogs, a process for their preparation and their use as medicaments This invention relates to compounds of the formula   where X is -NH, oxygen, N-loweralkyl, or N-arylloweralkyl; R1 is hydrogen, loweralkyl, cycloalkyl, aryl, arylloweralkyl, loweralkylene, haloloweralkyl, heteroaryl selected from the group consisting of thienyl, furanyl, pyrrolyl and pyridinyl; heteroarylloweralkyl, heterocyclic selected from piperidinyl, piperazinyl, pyrrolidinyl; or heterocyclicloweralkyl; R2 is hydrogen or loweralkyl; R3 is loweralkyl or arylloweralkyl; R4 is hydrogen, loweralkyl, loweralkenyl, loweralkynyl, arylloweralkyl, formyl, loweralkylcarbonyl, arylloweralkylcarbonyl or loweralkoxycarbonyl; Y is hydrogen, halogen, loweralkyl or loweralkoxy, and the pharmaceutically acceptable acid addition salts thereof, and where applicable, the geometric and optical isomers and racemic mixtures thereof. The compounds of this invention are useful for alleviating various memory dysfunctions characterized by a cholinergic defect such as Alzheimer's disease.
Patent CA-2044668-A1 (CA)
Title: Placement device for a catheter and guide wire
Inventor: WENDELL AMY M
IPC: A61M25/01
Filed: 1991-06-14
Abstract: PLACEMENT DEVICE FOR A CATHETER AND GUIDE WIRE                  ABSTRACT OF THE DISCLOSURE      A placement device for a catheter and guide wire comprising, a valve assembly having a proximal end,  a distal end for connection to the catheter, an elastic valve member having a least one slit and a slide member being slidably received in the valve assembly and being movable between a first position spaced from the valve member with the valve member being closed, and a second position engaged against the valve member with the valve member being open, with the slide member having a bore extending therethrough.  The device has a valve opener having an elongated stem on an end of the opener with an outer diameter sufficiently small to be received in the bore of the slide member, with the stem having sufficient length to extend through the slide member and open the valve member with the valve opener extending through the valve member, and with the stem having a channel with an inner diameter sufficiently large to receive the guide wire.
Patent CA-2044986-A1 (CA)
Title: Positive-type photosensitive electrodeposition coating composition
Inventor: AKAKI YUW
IPC: H05K3/00
Filed: 1991-06-19
Abstract: Abstract of the Disclosure A positive-type photosensitive electrodeposi-tion coating composition comprising (A) a photosensitive compound having a molecular weight of not more than 6,000 and containing at least one modified quinonediazidesulfone units represented by the following formula (I) (I)   wherein R1 represents    or   R2 represents a hydrogen atom, an alkyl group, a cycloalkyl group or an alkyl ether group, R3 represents an alkylene group, a cyclo-alkylene group or an alkylene ether group, and A represents a carboxylic acid ester linkage, in a molecule and; or a photosensitive compound obtained by reacting a polyfunctional amino compound with o-benzoquinonediazidesulfonic acid chloride or o-naphthoquinonediazidesulfonic acid chloride, and (B) a water-soluble or water-dispersible resin having a salt-forming group.        Said composition is suitable for forming a printed wiring photoresist by coating an electrically conductive material-clad laminated plate by electrode-position to form a smooth film whose portion exposed to actinic rays such as ultraviolet light through a positive photomask can be washed away with a developing solution.
Patent CA-2045456-A1 (CA)
Title: Golf swing training system
Inventor: DURSO JOSEPH M
IPC: A63B69/36
Filed: 1991-06-25
Abstract: GOLF SWING TRAINING SYSTEM A golf swing training device (pad) includes a flat substantially rectangular base with two forwardly directable edges, means for securing the base to a practice surface, a substantially rectangular hitting surface with two forwardly directable edges spaced apart a distance less than that between the two forwardly directable edges of the base, means for adjustably attaching the hitting surface to the base, and optionally, either a ball position pointer pivotably associatable with the base, which includes an elongate substantially parallel-sided pivotable rule with a pivot end and a pointer distal to the pivot end, or a golfer's square, which includes the ball position pointer or the like, an elongate substantially parallel-sided right rule rightly attachable to the pivotable rule, and means for attaching the rules. Also, a golf swing training mat has a follow-through notch. Golfers may align their feet and body with the notched mat and hit the ball near a hitting area edge thereof for more authentic golf swing training, especially at driving ranges. The ball can be struck in a forward area of the pad or mat, with the golfer able to swing down and through the ball as on real turf, and bounce back can be generally eliminated to provide for the practice of an authentic feeling golf swing, particularly with respect to iron shots. Good practice is engendered hereby. JMD/CJR151
Patent CA-2046066-A1 (CA)
Title: Aqueous polymer dispersions and polymer powders prepared therefrom by spray drying
Inventor: FRANZMANN GERNOT
IPC: C08J3/03
Filed: 1991-07-02
Abstract: - 11 -               O.Z. 0050/41708 Abstract of the Disclosure:  Aqueous polymer dispersions containing, I  as  the  disperse  phase,  a  film forming dispersion polymer and II in the aqueous phase, from 5 to 40% by weight, based on the total dry mass of I and II, of a completely or partially neutralized water-soluble copolymer of a)   from  50  to  80  mol  %  of  an  olefinically unsaturated mono- or dicarboxylic acid,  of an anhydride of these acids or of a mixture of these monomers, b)   from 20 to 50 mol % of a C3-C12-alkene, of styrene or of a mixture of these monomers and c)   from 0 to 10 mol % of further monomers which can be subjected to free radical polymerization, and the powders obtained by spray-drying these polymer dispersions are suitable as binders for water-resistant plastics  renders  and  coatings  and  as  adhesives  or adhesive components.
Patent CA-2046316-A1 (CA)
Inventor: LARSSON LARS G
IPC: H04L27/01
Filed: 1990-11-22
Abstract: Symbols (y(n-L)) in a symbol sequence transmitted via a fading channel are estimated (~(n-L)) in an equalizer having a channel estimating filter (CEST). An error signal (e(n)) influences an adaptation circuit (10) which controls adjustable coefficients (7) so as to form a channel estimate (c1(n), c2(n) c3(n)), which is adapted during the whole of the symbol sequence. The adaptation circuit (10) performs an adaptation algorithm, which is influenced by mean energy values (U(n)) obtained from the channel estimate in a mean-value-forming circuit (15). Subsequent to fading the adaptation algorithm is able to control the coefficients (7) so that one of the coefficients will erroneously dominate the channel estimate, with erroneous estimation of symbols (~(n-L)) as a result. This is counteracted by selecting the largest of the mean energy values U(n)), this largest value influencing the adaptation algorithm (10). When the signal strength of the transmitted symbols falls beneath a threshold value, the coefficient which dominated the channel estimate, for instance the first coefficient (c1(n)), is sustained to also dominate after fading and the remaining coefficients are set to zero:
Patent CA-2046823-A1 (CA)
Inventor: PECHT GLENN G
IPC: F16J15/34
Filed: 1991-07-11
Abstract: ABSTRACT OF THE DISCLOSURE A seal face of a ring used in a non-contacting, gap-type seal having an annular groove area with microdams, each having a preferable width of about .025 inches, between a plurality of groove surface areas.  The microdams provide a boundary to the groove surface areas thereby the recess of each groove surface area bounded by the microdams acts as a unitary pressure zone and the pressure in the separate zones decreases in a series of steps as measured from one circumference of the ring to the other circumference.
Patent CA-2047272-A1 (CA)
Inventor: DEHENNAU CLAUDE
IPC: B32B27/30
Filed: 1991-07-17
Abstract: The flexible multilayer structures comprise a layer of vinylidene chloride copolymer bonded to a layer of plasticized vinyl chloride polymer with the aid of a polymeric adhesive consisting of a mixture of vinyl acetate polymer and of polymethyl methacrylate, for which the product of the vinyl acetate weight content, expressed in per cent, multiplied by the dynamic viscosity at 100 DEG  C. and 1 s-1, expressed in kPa s, is greater than 1.3x103. The flexible multilayer structures may be in the form of films, sheets, cartons or flexible pouches which can be employed in the packaging field.
Patent CA-2047979-A1 (CA)
Inventor: LE VAN MAO RAYMOND
IPC: B01J29/04
Filed: 1991-07-26
Abstract: In accordance with the present invention, there is now provided a hybrid catalyst suitable for the aromatization of light paraffins and olefins, comprising a mixture of a pentasil type zeolite having the structure of ZSM-5 orZSM-11, and a cocatalyst consisting of gallium oxide supported by an oxide selected from the group consisting of silica, alumina particles and chromium oxide particles.
Patent CA-2048359-A1 (CA)
Title: Dna sequences which impart resistance to the fungicide 8-chloro-4-(2-chloro-4-fluorophenoxy) quinoline
Inventor: GUSTAFSON GARY D
IPC: C12Q1/32
Filed: 1991-08-02
Abstract: Abstract The present invention provides 8 chloro-4 (2-chloro-4-fluorophenoxy)quinoline (a fungicide) resistance genes for use as selectable markers in fungi.  These resistance genes are mutants of the wild-type Aspergillus nidulans dihydroorotate dehydrogenase gene.  The wild-type gene is also provided herein.
Patent CA-2052772-A1 (CA)
IPC: G10H1/00
Filed: 1991-10-04
Abstract: ABSTRACT OF THE DISCLOSURE     METHOD AND APPARATUS FOR AUDIO EDITING OF MIDI FILES          A method and apparatus are disclosed for the audio editing  of  MIDI  (Musical  Instrument  Digital  Interface) files.  MIDI files make it possible to exchange information such as: musical notes, program changes, expression control and  channel  information  between  musical  instruments, sequencers,  computers,  lighting  controllers  and  mixers. MIDI files generally consist of serially listed channel and system  messages  which  include  at  least  program  status messages and matching note on and note off messages.  The method  and  apparatus  of  the  present  invention  may  be utilized to ensure the integrity of a source file, a copied or  lifted  section  or  a  target  file  by  automatically inserting matching note on or note off messages into a file or file section to correct inconsistencies created by such editing. Additionally, program status messages are automatically inserted into source files, copied or lifted sections, or target files to yield results which are consistent with the results which may be obtained by editing digital audio data. Timing information is selectively added or maintained such that MIDI files may be selectively edited without requiring a user to learn a complex MIDI sequencer.
Patent CA-2055976-A1 (CA)
Title: Mulching apparatus
Inventor: HUMPHREYS JAMES R
IPC: A01B33/02
Filed: 1991-11-21
Abstract: ABSTRACT OF THE DISCLOSURE    A mulcher for use in silviculture adapted to be mounted on or attached behind an off-road vehicle for mulching two or more rows prior to the planting of seedlings, said mulcher having a triangular frame, fastening means, tillers, tiller motors, tiller teeth and means for raising and lowering said frame relative to the ground, wherein the fastening means for connecting the triangular frame to an off road vehicle is mounted on the apex of the triangular frame, opposite the apex of the triangular frame, tiller motors mounted on the base of the triangular frame are connected to said tiller heads for rotating said tiller heads in a clockwise direction relative to the base of the triangular frame, elongated teeth mounted on said tiller heads are adapted to mulch the soil, means for lowering said triangular frame relative to the surface of the ground for tilling, and means for raising said triangular frame relative to surface of the ground when not tilling.
Patent CA-2056896-A1 (CA)
Title: Double wall gas absorber apparatus for use with hazardous materials
Inventor: LANKTON STEVEN P
IPC: B01D53/18
Filed: 1991-12-04
Abstract: A gas absorber, for removing at least one hazardous component from a flowing gas stream by contacting the gas stream with a lean liquid stream to absorb at least a portion of the gaseous component to produce a rich liquid stream comprising the gaseous component and a flowing gas stream having a reduced concentration of the gaseous component, comprises: (a) an absorber vessel [1], a double wall [2,5] forming an annulus, a top end [3], a bottom end [4], a means for restricting fluid flow into the bottom of the gas absorber from the bottom of the annulus and a means for passing fluid out of an upper section of the annulus into the gas absorber; (b) an inlet [5] for the lean liquid stream having a locus in the upper end of the vessel [1]; (c) an inlet [7] for the flowing gas stream located in the lower end of vessel [1]; (d) an outlet for the rich liquid stream having a locus in the bottom end [4] of vessel [1]; (e) an outlet [10] located in the top end [3] for the flowing gas stream having a reduced concentration of the gaseous component; and (f) at least one inlet [g] communicating with the lower end of the annulus in vessel [1] which inlet is used to introduce a lean liquid stream at least a portion of which flows upwardly through the annulus and overflows from the top of the annulus and thereby protecting at least a portion of the outer wall from contact with the flowing gas stream.
Patent CA-2058726-A1 (CA)
Title: Process for a liquid-jet printer
Inventor: DIETRICH KLAUS
IPC: B41J2/07
Filed: 1992-01-08
Abstract: ABSTRACT            In order to use liquid-jet printers for franking and value-stamping machines, a process is proposed in which in place of the conventional control of the positions of the droplet ejection devices relative to the receiving surface, a guide plate for the droplet ejection devices is deformed by surface waves.
Patent CA-2059063-A1 (CA)
Title: Novel antiviral compounds
Inventor: PARTIS RICHARD A
IPC: C07D491/056
Filed: 1992-01-09
Abstract: o-acylated derivatives of 1,5-dideoxy-1,5-imino-D-glucitol are disclosed that contain an N-alkyl or N-aroyl radical in which from one to four of the free hydroxyl groups are o-acylated with carboxylic alkanoyl radicals selected from the group consisting of .omega.,.omega.,.omega.-trifluoro alkanoyl having from three to eight carbon atoms, carboxylic cycloalkanoyl groups having from four to eight carbon atoms and carboxylic acyclic alkanoyl groups having from two to ten carbon atoms, wherein the N-aroyl radical is selected from the group consisting of p-decylbenzoyl, 3-(p-chlorophenoxy)-propanoyl, 2-(acetyloxy)benzoyl, [1,1'-biphenyl)-4-ylcarbonyl, 2-thiopheneacetyl, trans-3-furanacryloyl, 3-methoxyphenylacetyl and 3-(trifluoromethyl)benzoyl, and wherein the N-alkyl contains from one to fourteen carbon atoms, provided that when N-alkyl contains from one to five carbon atoms the o-acylated groups are .omega.,.omega.,.omega.-trifluoro alkanoyl or carboxylic cycloalkanoyl.
Patent CA-2059151-A1 (CA)
Title: A mobile steeping tank
Inventor: STROBACH KARL
IPC: C05F17/02
Filed: 1992-01-14
Abstract: ABSTRACT A mobile steeping tank (1) in the form of a closed container has at least one top loading hatch (2) attached to a framework (3) which is supported so as to be able to pivot on the steeping tank (1) on hinges (4) and with a pivoting system that is supported on a side wall (5) of the steeping tank (1), and which acts on the loading hatch (2) to open and hold it in the open position, and with a closer to hold the loading hatch (2) tightly in the closed position.  The pivoting system and the actuation of the closer are physically combined in a lifting device which in the closed position of the loading hatch (2) has an idle phase in respect to the closing movement of the loading hatch.  In this idle phase a locking mechanism is actuated by the lifting device (6), acting in each instance on at least two locking cams (7, 7a) that are each arranged on each long side of the steeping tank (1) and with which the loading hatch (2) can be brought into close contact on the corresponding contact sur-faces in the top of the steeping tank (1).
Patent CA-2061109-A1 (CA)
Inventor: FULLER TIMOTHY J
IPC: G03G9/087
Filed: 1992-02-12
Abstract: A toner composition comprised of resin particles and pigment particles, and wherein the toner is surface treated with a halogen.
Patent CA-2062732-A1 (CA)
Title: A mutated subtilisin protease
Inventor: BRANNER SVEN
IPC: C12N15/57
Filed: 1990-06-26
Abstract: Enzymes produced by mutating the genes for a number of subtilisin proteases and expressing the mutated genes in suitable hosts are presented. The mutated enzymes have a changed net electrostatic charge compared to the parent protease at the same pH. The enzymes exhibit improved wash performance in comparison to their wild type parent enzymes. The enzymes are well-suited for use in detergent compositions.
Patent CA-2063238-A1 (CA)
Title: Laparoscopic stapler with knife means
Inventor: MADDEN MARTIN
IPC: A61B17/115
Filed: 1992-03-17
Abstract: A four-row laparoscopic surgical stapler cutting mechanism is described wherein stapling and cutting are remotely accomplished. Further, there is disclosed closure means which enable closure and stapling of the apparatus.   Finally, such closure can take place either using lever or collar type means. This stapling apparatus is useful in performing surgical stapling functions through the cannula of a surgical trocar.
Patent CA-2065260-A1 (CA)
Inventor: SHELDON PAUL C
IPC: B23P23/02
Filed: 1990-08-28
Abstract: A machine such as a machine tool includes a pair of spaced platforms. One platform (11, 31, 185, 72, 159, 142) may mount an operator such as a tool in a spindle and the other platforms (10, 20, 180, 170, 144, 163) may mount an object such as a workpiece. The spaced platforms are joined by six powered and extensible legs (20-25, 40-45, 64-69, 145-150, 166, 182-84, 187-89) joined to the respective platforms by universal joints. The length of the legs is individually manipulated to vary the position of the platforms and, therefore, the object and operator relative to each other in six axes. The powered legs may be hydraulic cylinders (20-25) or recirculating ball screw driven (195, 197, 198). The distance between the spaced platforms may be measured by separate extensible instrument arms (130, 131, 171) which join the platforms. The instrument arms may use a digital position device (238, 240) to measure the extension and contraction of the instrument arms or may use a laser interferometer (267) for that purpose. The changes in the length of the instrument arms may be used to generate signals that control the extension and contraction of the powered legs.  A method is also disclosed for converting part program coordinate block instructions into instructions for varying the length of the powered legs.
Patent CA-2066664-A1 (CA)
Title: Process for the production of compositions containing biosynthetic pesticidal products and use of the compositions obtained
Inventor: DETROZ RENE
IPC: A01N63/23
Filed: 1991-07-18
Abstract: The invention relates to a process for the production of compositions containing a biosynthetic pesticide product from microorganisms of the Bacillaceae family and at least tannic acid. The compositions obtained are effective against insects.
Patent CA-2067127-A1 (CA)
Inventor: MOUNTFORD CAROLYN E
IPC: G01R33/465
Filed: 1990-07-23
Abstract: In a method for determining chemical states of living animal or human tissue using nuclear magnetic resonance with a homogeneous constant magnetic field, the tissue is measured by means of a high-resolution nuclear magnetic resonance measurement and the measured values obtained are then evaluated by comparison with measured values from resonance measurements on comparable tissue to determine whether the chemical state of the tissue corresponds to a chemical normal state or to a deviating abnormal state. In order to enable a determination of chemical intermediate states to be made, it is proposed to compare the measured values obtained with such a series of reference measurements which also contain the detectable characteristic transition states between the chemical normal state and the abnormal end state and that the chemical transition state of the measured tissue sample is determined from the comparison (Fig. 5).