baber/WOPTO huggingface dataset:
Patent CA-2005265-A1 (CA)
Title: Power-operated valve
Inventor: JACKSON HAROLD E
IPC: F16K31/40
Filed: 1989-12-12
Abstract: ABSTRACT                    Power-operated valve In a power-operated valve in which the pressure of a working  fluid  is  used  to  control  the  opening  and closing  of  the  valve  member  in  dependence  on  the condition of an integral power-operated bleed valve, a compensation passage being formed in the valve member to permit working fluid to close the valve when the bleed valve  is closed,  the  compensation passage  is formed  in  that  area  of the valve member which  is bounded by the valve seating and which also defines the cross-sectional area of the inlet chamber, whereby the closing force on the valve member is proportional to the  area  of  the  valve  housing,  thus  enhancing  the sensitivity of the valve.  In a preferred embodiment, a filter is incorporated in the valve member to filter the working fluid to the compensation passage without filtering the bulk of fluid passing through the valve.
Patent CA-2009622-A1 (CA)
Inventor: BLANCHETTE ROBERT A
IPC: C12S3/08
Filed: 1990-02-08
Abstract: - 26 -            Case 118-7098/F/C     PROCESS FOR REDUCING THE PITCH CONTENT IN WOOD PULP            Abstract of the disclosure The invention relates to paper making industry and provides a process for reducing the resin content of wood which comprises applying an inoculum of a penetrating stain fungus to the wood in a systematic manner and maintaining environmental conditions effective for promoting the fungal growth.
Patent CA-2012709-A1 (CA)
Inventor: HEROLD GUNTHER
IPC: C01F7/782
Filed: 1990-03-21
Abstract: A process is disclosed for producing a dawsonite with a short-prismatic, isometric crystal habit. The dawsonite can be produced without occupational medicine concerns and can be used, among other things, as a flame-retardant additive in plastics.
Patent CA-2012829-A1 (CA)
Title: Elasticized vinyl dispersion resins having outstanding storage stability
Inventor: MIKOFALVY BELA K
IPC: C08L35/00
Filed: 1990-03-22
Abstract: ABSTRACT OF THE DISCLOSURE   An elasticized, dispersion-grade vinyl chloride resin powder is pro-vided which not only imparts improved elasticity and reduced hysteresis losses to fluid plastisols made therewith, but also has excellent stability under adverse environmental conditions, insuring consistent performance in plastisols even  after said powder has been in storage for several months. This resin powder has an average particle size between about 0.4 and about 4 microns and contains between about 0.5 and about 20% by weight of an elaso-meric acrylic polymer having a Tg below about -10°C which is present as discrete particles most of which are at least partly occluded by hard thermo-plastic vinyl chloride polymer formed in situ, which vinyl chloride polymer represents substantially all of the remaining mass of said powder. Fluid plastisols prepared from said resin powder are also described as well as finished articles of improved resiliency and elasticity, which are made from said plastisols.  Also disclosed, are preferred methods of preparing said elasticized resin powders.
Patent CA-2013270-A1 (CA)
Inventor: FAURE JEAN-FRANCOIS
IPC: C22C1/04
Filed: 1990-03-29
Abstract: Al-based alloys of the 7000 series which have a high modulus (E >/= 74 GPa), a high mechanical strength (R0.2 >/= 530 MPa in the lengthwise direction), a good tenacity (KIC, lengthwise direction > 20 MPa  2ROOT m) and a good corrosion resistance under (O pressure >/= 250 MPa in the short transverse direction, lifetime >/= 30 days - ASTM Standard G 38-73). 
<??>The alloy according to the invention corresponds to the following weight composition:
 from 5.5 to 8.45% of Zr
 from 2 to 3.5% Mg
 from 0.5 to 2.5% Cu
 up to 0.5% Fe
 up to 0.5% Si
 other elements </= 0.05% each
 and up to 0.15% in all
 with
 0.1 </= Zr </= 0.5%
 0.3 </= Cr </= 0.6%
 0.3 </= Mn </= 1.1%
 
<??>It is preferably produced by the following process:
 a) a massive body which has the composition claimed above is formed by spray-deposition,
 b) this body is converted into a wrought product between 300 and 450 DEG C and then optionally when cold
 c) the wrought product is heat-treated by dissolving, quenching and annealing to a T6 or T7 state. 
<IMAGE>
Patent CA-2013477-A1 (CA)
Title: Amino compounds, amino resins obtained therefrom, production of amino resins and resin compositions for water-borne coatings
Inventor: SEMBA REIKO
IPC: C08G12/30
Filed: 1990-03-30
Abstract: ABSTRACT OF THE DISCLOSURE         A resin composition comprising (A) an amino resin obtained by oxymethylating tetramethylene-diguanamine, followed by methyletherification of the resulting product and (B) a resin reactive with said amino resin is effective as a water-borne coating composition.
Patent CA-2013850-A1 (CA)
Title: Irrigation sprinkler with an internal drive clutch
Inventor: VAN LEEUWEN TIMOTHY O
IPC: B05B15/10
Filed: 1990-04-04
Abstract: ABSTRACT OF THE DISCLOSURE        A drive clutch mechanism for a pop-up oscillating irrigation sprinkler which serves to protect the internal com-ponents of the sprinkler against forceable rotation of the pop-up assembly by vandals, or others, and which when operated does not disturb the previous setting of the trip mechanism in the sprinkler.
Patent CA-2014651-A1 (CA)
Title: Long traveling button switch with enhanced user feedback
Inventor: SCHROEDER CHRISTOPHER K
IPC: H01H13/702
Filed: 1990-04-17
Abstract: LONG TRAVELLING BUTTON SWITCH WITH ENCHANCED USER FEEDBACK                  ABSTRACT OF THE DISCLOSURE       A pushbutton  switch  including  a keycap having a keycap top and a keycap plunger, a retaining bezel for guiding the keycap plunger and limiting the displacement thereof, a deformable elastomeric switch button supporting a  contact pad,  and  a  printed  circuit  contact  pattern engageable by the contact pad when the switch button is deformed  by  the  downward  displacement  of  the  keycap plunger.   The deformation of the button switch tactile feedback,  while  impact  of  the  keycap  top  against  the retaining bezel provides audible feedback.  The pushbutton switch is configured to limit the downward displacement of the keycap plunger to avoid excessive force on the printed circuit board.
Patent CA-2016141-A1 (CA)
Title: 8-substituted 4-(heterocyclylmethylamino) quinolines, the use thereof and drugs prepared therefrom
Inventor: GEISS KARL-HEINZ
IPC: C07D405/12
Filed: 1990-05-07
Abstract: O.Z. 0050/40846 Abstract  of  the  disclosure:  8-Substituted  4-(hetero-cyclylmethylamino)quinolines of the formula I                  (I) where R1-R6 have the meanings specified in the claims, and the physiologically tolerated salts thereof, are used for the preparation of drugs which are administered especial-ly for diseases in which a reduction in gastric acid secretion has a beneficial effect on healing.
Patent CA-2018834-A1 (CA)
Title: Cyclic anthranilic acid acetic acid derivatives and process for the preparation
Inventor: MIYASHITA MITSUTOMO
IPC: A61K31/47
Filed: 1990-06-12
Abstract: Title of the Invention:      Novel cyclic anthranilic acid acetic acid derivatives and process for the preparation Abstract of the Invention:      Cyclic anthranilic acid acetic acid derivatives of the following formula,                   (I) wherein R1 and R2 each independently indicate a hydrogen atom, lower alkyl group having 1 to 3 carbon atoms; their acid or alkali salts thereof are useful as drugs treat autoimmune diseases, antirheumatic agents and therapeutic or prophylactic agents to treat metabolic bone diseases.
Patent CA-2023464-A1 (CA)
Title: Butyric acid derivatives
Inventor: MAIENFISCH PETER
IPC: C07F7/08
Filed: 1990-08-16
Abstract: PS/5-17701/1+2/+            Butyric acid derivatives Abstract Novel 4-chloro-4,4-difluorobutyric acid derivatives of formula I                                           (I),   wherein R1 and R2 independently of one another are hydrogen, C1-C4alkyl or C1-C4haloalkyl, R3 is hydrogen or an organic radical and X is oxygen or -NR4-, in which R4 is hydrogen or C1-C6alkyl, may be used as pesticides. Especially insects and arachnids can be controlled.
Patent CA-2025013-A1 (CA)
Title: Cryogenic air separation process and apparatus
Inventor: HA BAO V
IPC: F25J3/04
Filed: 1990-09-10
Abstract: ABSTRACT OF THE INVENTION        An energy efficient process and apparatus for the cryogenic separation of air by rectification to produce at least one vapor fraction, at least one liquid fraction, and at least one nitrogen product stream wherein cooled and pressurized feed air in vapor form is condensed by indirect heat exchange contact with at least one liquid fraction to vaporize the liquid fraction and condense the feed air stream, then vaporizing the condensed feed air stream by indirect heat exchange contact with at least one vapor fraction thereby condensing the vapor fraction, and then using the vaporized feed air stream as feed air for cryogenic separation by rectification.
Patent CA-2026020-A1 (CA)
Title: Transport vehicle approach notification systems
Inventor: POPOWICH HARVEY
IPC: H04B7/26
Filed: 1990-09-24
Abstract: ABSTRACT OF THE DISCLOSURE A  Transport  Vehicle  Approach  Notification  System consisting of a plurality of receivers in the possession of customers. Each receiver is responsive to a digitally coded transmission signal with distinct identifying characteristics thereby distinguishing the transmission signal intended for the customer  from transmission signals intended for other customers.   The  receiver  alerts  the  customer  when  a transmission signal  has been received.   A transmitter  is mounted in the Transport Vehicle. The transmitter has means for varying the digital coding of the transmission signal transmitted.   The digitally coded transmission signal of an individual passenger is transmitted as the transport vehicle approaches a prearranged pickup site.
Patent CA-2030337-A1 (CA)
Inventor: DEBACQUE PATRICK
IPC: F16K17/38
Filed: 1990-11-20
Abstract: Device for sealing an orifice for feeding with gas or with an air/gas mixture of a radiant burner in order to bring about its automatic shut-off in case of flashback, of the type comprising a deformable temperature detection part (2), the deformation of which leads to the displacement of a sealing bearing surface (8) intended to come to seal the orifice (11) in the event of detection of a given temperature, characterised in that the detection part (2) is arranged in the distribution chamber of the radiant burner. 
<IMAGE>
Patent CA-2031471-A1 (CA)
Title: Determination of slag tap blockage
Inventor: CRENWELGE OTTO E JR
IPC: C10J3/46
Filed: 1990-12-04
Abstract: A B S T R A C T                 DETERMINATION OF SLAG TAP BLOCKAGE      A method for determining blockage of a coal gasification slag tap by observing changes in the sound pressure across the slag tap.
Patent CA-2032523-A1 (CA)
Title: Sliding mode control method with a feedforward compensation function
Inventor: TORII NOBUTOSHI
IPC: G05B13/00
Filed: 1990-05-11
Abstract: A B S T R A C T A sliding mode control method with a feedforward compensation function which is capable of achieving a control response characteristic adapted to varying system parameters and permitting a manipulated variable affecting a controlled object to be always kept proper. A position deviation (.epsilon.), speed deviation (?), predicted maximum and minimum inertias (Jmax, JO), predicted maximum and minimum gravity loads (GRmax, GRmin), switching variable (s), integral element (?(? + C?.epsilon.)), second differential (?r) of the command position, and actual speed (?) are periodically calculated on the basis of a command position (.theta.r). actual position (.theta.), inertia data, and gravity load data (100 - 102, 104, 107, 110, 114, 117, 120, 123, 127).  Even when a nonlinear system parameter such as an inertia varies, a proper torque command (T) is periodically calculated, as a manipulated variable, on the basis of a switching amount (T1) obtained by adding together five terms calculated in accordance with respective positive or negative signs of the switching variable, position deviation, integral element, second differential, and actual speed (105, 106, 108, 109, 111 - 113, 115, 116, 118, 119, 121, 122, 124 to 126, 128 -131).
Patent CA-2035600-A1 (CA)
Title: Light-stabilised binders for coating compositions
Inventor: VALET ANDREAS
IPC: C09D5/32
Filed: 1991-02-04
Abstract: The stabilised binder is a mixture of two copolymers and at least one curing agent. The one copolymer contains fluorine or silicon and a UV absorber in copolymerised form. The other copolymer is an acrylic resin. Suitable curing agents are melamine resins or polyisocyanates.
Patent CA-2036703-A1 (CA)
Title: Empty/load changeover valve for railway car
Inventor: HART JAMES E
IPC: B60T8/18
Filed: 1991-02-20
Abstract: A dual capacity empty/load changeover valve for a railway freight car in which a piston-operated check valve controls the supply of compressed air delivered from the auxiliary reservoir to the brake cylinder via the car control valve. The check valve is connected to a balance piston having equal opposing pressure areas, one of which is subject to the air supplied to the brake cylinder under all conditions of car loading. The opposing pressure area of the balance piston is pressurized in a load condition and depressurized in an empty condition, thereby establishing a proportional mode of brake control during empty car braking.      A proportioning spring acts on the balance piston to establish the brake cylinder pressure at which the check valve becomes operative to proportion the air supplied to the brake cylinder. In one embodiment of the invention, the proportional spring exerts a fixed force and in another embodiment, the proportioning spring exerts a variable force on the balance piston according to the empty car load weight, so as to vary the ratio at which the brake cylinder pressure is proportioned.
Patent CA-2037208-A1 (CA)
Title: Condensates suitable as demulsifiers for oil-in-water emulsions
Inventor: FIKENTSCHER ROLF
IPC: C09K23/00
Filed: 1991-02-27
Abstract: BASF Aktiengesellschaft                        O.Z. 0050/41424 Condensates suitable as demulsifiers for oil-in-water emulsions Abstract of the disclosure:   The present invention relates to condensates suitable as demulsifiers for oil-in-water emulsions and prepared from A)   a precondensate from one or more trialkanolamines of the general formula I                                         (I), in which R1 to R3 denote the same or different 1,2-alkylene groups of from 2 to 4 carbon atoms, and B)   from 0.1 to 30 % w/w, based on said precondensate, of one or more of the following compounds II:   a) urea or a urea derivative of the general formula IIa                 (IIa), b) a urea derivative of the general formula IIb                 (IIb), c) a urethane of the general formula IIc   (IIc), BASF Aktiengesellschaft          2              O.Z. 0050/41424 and/or d) a urethane of the general formula IId                 (IId), in which R1          is hydrogen, C1-C20-alkyl or C2-C20-alkenyl, R2 and R3   are the same or different and denote hydrogen or C1-C4-alkyl, R4          is C1-C4-alkyl and R5          is C1-C12-alkylene.
Patent CA-2037946-A1 (CA)
Title: Horizontal auger for skidsteer tractors and the like
Inventor: WELLS ALLEN
IPC: E21B3/00
Filed: 1991-03-11
Abstract: TITLE:  HORIZONTAL AUGER FOR SKIDSTEER TRACTORS AND THE LIKE               ABSTRACT OF THE DISCLOSURE    An apparatus is provided that is mountable upon preferably a skidsteer tractor, though a forklift truck or similar wheeled vehicle could be employed.  The apparatus can be lowered into a trench on one side of a street or sidewalk and used to bore axially beneath the street or sidewalk to a trench on the other side of the street or sidewalk.  Operation of the apparatus, which uses conventional commercial augers is controlled from the hydraulic couplings situated in the skidsteer tractor.     The apparatus includes a main housing which includes a means for receiving the accessory shoe of a prime mover for physical attachment thereto; and a motor housing with a motor, hydraulic coupler and bearing disposed therein, which motor housing is pivotally mounted to the main body.
Patent CA-2040534-A1 (CA)
Title: Patch cord length calculator
Inventor: GUSTASON ROBERT J
IPC: G06G1/00
Filed: 1991-04-16
Abstract: PATCH CORD LENGTH CALCULATOR                ABSTRACT OF THE DISCLOSURE         A hand operated calculator is provided for estimating a length of a patch cord necessary to extend between any two of a plurality of connection locations of spaced apart frames in a distribution bay.  The calculator includes three members which are movable relative to one another.  Each of the members carries various indicia which when aligned indicate an optimum amount of patch cord necessary to extend between indicated connection locations of spaced apart frames.
Patent CA-2040698-A1 (CA)
Title: Medical adhesives
Inventor: YAMANAKA AKIHITO
IPC: A61K9/70
Filed: 1991-04-17
Abstract: ABSTRACT OF THE DISCLOSURE    A medical adhesive comprising a plaster layer containing the following ingredients, characterized in that the ingredient ? is incorporated in a larger amount than the ingredient ? and in an amount not less than 25% by weight relative to the total amount of the ingredients ?~?, and the plaster layer is a W/O type :     ? a medicinal ingredient, ? a hydrophobic polymer having a glass transition temperature (Tg) of -65°C to 35°C.     ? a percutaneous absorption-promoting agent, ? water, and ? a hydrophilic polymer which is soluble or capable of swel-ling in water; and a medical adhesive which comprises a porous base layer in the plaster layer or in contact with the plaster layer, which enable stable release of the medicinal ingredient, the percutaneous absorption-promoting agents and so on and sustaining of the pharmacological effects over a long period.
Patent CA-2041290-A1 (CA)
Title: Remote control apparatus
Inventor: FUNAMOTO TARO
IPC: H04B7/00
Filed: 1991-04-26
Abstract: ABSTRACT OF THE DISCLOSURE         A remote control apparatus includes a modulator for modulating a carrier signal with a remote-control voice signal.  A transmitting circuit serves to transmit an output signal prom the modulator when a recognition requirement signal is inputted.  The recognition requirement signal requires a recognition of the voice signal.  A receiving circuit receives the signal transmitted by the transmitting circuit.  A carrier detector serves to detect a carrier in an output signal from the receiving circuit, and serves to output a recognition requirement signal.  A demodulator subjects the output signal from the receiving circuit to a demodulating process, and outputs a voice signal.  Only when the carrier detector outputs the recognition requirement signal, a speech recognition circuit identities a type of the voice signal outputted prom the demodulator and outputs a control signal which depends on the identified voice signal type.          A control circuit serves to control a controlled device in response to the control signal outputted from the speech recognition circuit.
Patent CA-2043166-A1 (CA)
Title: Portable pitless livestock gate
Inventor: COBBE JAMES A
IPC: A01K3/00
Filed: 1991-05-23
Abstract: ABSTRACT OF THE DISCLOSURE          A portable pitless livestock barrier whereby vehicles or humans may easily gain access to a livestock enclosure but provides a deterrent to the unwanted passage of the livestock from such enclosure.  The barrier is provided by having a horizontal main frame to be placed on the ground with a vertical frame supported and attached to each side of the main frame.  Within the boundaries of the main frame are two platform grates that are connected to the main frame at the exit and entrance to the barrier but can be adjustably raised in the central area of the barrier by a spring biased lever lifting mechanism attached to each vertical frame which allows the platform grates to be forces to the ground when a vehicle passes over but when the vehicle has passed the grates regain their inclined position giving a perception of depth or poor footing to the livestock thereby providing a deterrent to their passage.
Patent CA-2043518-A1 (CA)
Title: Edge cover
Inventor: TRUDEAU RICHARD
IPC: A01G9/28
Filed: 1991-05-29
Abstract: ABSTRACT     This concerns an edge cover which will prevent grass and weeds to grow.     This edge cover, is permanently installed, where you want it, with triangular tip anchor stakes on each side of the edge cover in order to prevent its lifting or moving.     This edge cover can be cut to any desired length.  Many lengths can be installed end to end and held together by holding or anchor devices set in the edge cover openings.
Patent CA-2045901-A1 (CA)
Title: Densified and re-expanded polyurethane foam and a method for preparing same
Inventor: HERRINGTON RONALD M
IPC: C08J9/02
Filed: 1991-06-28
Abstract: ABSTRACT         Polyurethane foams having a specified glass transition temperature are densified for transportation or other purposes by heating the foam to a temperature above its Tg, compressing the heated foam, and then cooling the compressed foam to a temperature below its Tg.  The cooled foam remains in a densified state until re-heated to a temperature above its Tg, whereupon it re-expands to assume its original dimensions.     37,711-F
Patent CA-2046449-A1 (CA)
Inventor: MAITINO PHILLIP M
IPC: C02F1/42
Filed: 1991-07-08
Abstract: An apparatus for recovering metals from waste metallic solutions includes a treatment tank and a hollow perforated cathode element rotatably mounted in the treatment tank for holding associated work pieces which are to be coated with the recovered waste metal. A fixed anode element extends in the treatment tank in spaced relation to the rotatable cathode element. A first solution inlet conduit extends into the rotatable cathode element. A second solution inlet conduit extends into the treatment tank in a spaced manner from the rotatably cathode element. A drain conduit leads away from the treatment tank.
Patent CA-2047329-A1 (CA)
Title: Compact sram cell layout
Inventor: GODINHO NORMAN
IPC: H01L21/8238
Filed: 1991-07-18
Abstract: ABSTRACT OF THE DISCLOSURE     A compact cell design for a static random access memory cell is achieved.  The cell has two transistors with gates (30a, 30b) substantially parallel to each other.  One interconnect (45) connects the gate (30b) of one transistor to an electrode (35a) of the other transistor.  Another interconnect (463 connects the gate (30a) of the other transistor to an electrode (35b) of the first transistor.  The two gates and the two interconnects form substantially a rectangle.  A power supply circuit line (47) is disposed outside the rectangle.  This line and the two interconnects are formed from one conductive layer.  Also, in an array of memory cells, some circuit lines (37) are formed in the substrate, and other circuit lines (47) are formed directly above those in-the-substrate lines (37).  The in-the-substrate lines (37) are provided with extensions (42a, 42b) that permit to contact these lines (37) without contacting the other, overlying lines (47).
Patent CA-2047705-A1 (CA)
Title: Device for conveying bulk material
Inventor: BIRKLE SIEGFRIED
IPC: C25D17/28
Filed: 1990-02-21
Abstract: The invention relates to an oscillating conveyor in which the conveyor trough is arranged helically about a contral pipe and is at least partly immersed in an electrolyte in a container. An oscillating drive is fitted outside the container. According to the invention, the oscillating drive (10) is arranged above the central pipe (2) and between the central pipe (2) and the container (5) there is a gastight flexible seal (40) which also receives a torsional component of the oscillation. This device forms a closed system which is suitable for a non-aqueous electrolyte as the treatment fluid.