baber/WOPTO huggingface dataset:
Patent CA-2022175-A1 (CA)
Title: Pulsating gas powered light source
Inventor: DIEDERICH WALTER J
IPC: F21S13/00
Filed: 1990-07-27
Abstract: PULSATING GAS POWERED      LIGHT SOURCE               Abstract of the Disclosure The present invention relates to a pulsating gas fuel light source, utilizing a flexible diaphragm secured within a housing that reciprocates between two positions to generate a pulsating fuel flow thereby providing a lamp which flashes at regular intervals.  The pulsating gas fuel light source is suitable for use as a highly visible warning light for construction sites on highways to warn passing traffic.          .
Patent CA-2022294-A1 (CA)
Title: Arrangement for and method of making and using an assembly for decorating pastries
Inventor: PHILLIPS CHARLES A
IPC: A23G3/50
Filed: 1990-07-30
Abstract: ABSTRACT OF THE DISCLOSURE          A marshmallow-based, edible, sheet-like, decorative overlay is formed in situ on a release film mounted on a rigid carrier sheet.  After peeling the release film and the overlay together from the carrier sheet, the release film is subsequently peeled from the overlay to enable the overlay to be transferred by it-self to a pastry to decorate the same.
Patent CA-2025548-A1 (CA)
Inventor: GIGNAC ROBERT J
IPC: B60J5/04
Filed: 1990-09-17
Abstract: VEHICLE DOOR CHECK MECHANISM            Abstract of the Disclosure A door check mechanism for regulating pivotal movement of a vehicle door between a closed position and one or more open positions, which mechanism is sometimes incorporated in a hinge, includes an elongated track member having a track surface with at Least one detent receptacle in that track surface; a detent roller engages the track surface in rolling pressure contact at least part of the time whenever the door moves between its open and closed positions.  A second detent member may engage a second track surface on the track member; the second detent member may also be a roller.  Either the detent roller or the track has a resilient elastomer core, preferably an elastomer material (e.g., a silicone polymer) that retains its elastic properties over a temperature range that extends much higher than any temperature usually endurable by humans; the core is usually covered by a hard, relatively non-elastic but flexible sheath.  The engaging portions of the roller and track surfaces are preferably dissimilar materials, usually a metal and a resin.
Patent CA-2025930-A1 (CA)
Title: Phenothiazine derivatives, process for their preparation and pharmaceutical compositions containing the same
Inventor: GARRET CLAUDE
IPC: A61K31/00
Filed: 1990-09-21
Abstract: New phenothiazine derivatives of general formula (I) in which   R denotes cycloalkyl containing 4 to 6 chain members, or denotes -CH2R" in which R" is hydrogen, alkyl containing 1 to 5 carbon atoms, alkenyl or alkynyl containing 2 to 4 carbon atoms, cycloalkyl (3 to 6 chain members) phenyl optionally substituted (by 1 or 2 halogen atoms or by a hydroxyl, alkyl, alkyloxy, trifluoromethyl or nitro radical) or heterocyclic ring chosen from furyl, thienyl or pyridyl, and R' denotes either a radical of general formula (IIa) in which R1 and R2, which are identical or different, are alkyl, cycloalkylalkyl, hydroxyalkyl, acetyloxyalkyl or form, together with the nitrogen atom to which they are attached, a saturated or partially unsaturated heterocyclic ring containing 4 to 7 chain members and optionally substituted by 1 or 2 alkyl, hydroxyalkyl or acetyloxyalkyl radicals, and R3 is phenethyl or alkyl optionally substituted by cycloalkyl (3 to 6 carbons) or benzoyl, or a radical of general formula (IIb) in which R1 and R2 are defined as above.   The new products are useful as antispasmodics. <IMAGE>
Patent CA-2026431-A1 (CA)
Title: Hot melt adhesive composition
Inventor: SUGIE MASAHARU
IPC: C09J153/00
Filed: 1990-09-27
Abstract: ABSTRACT OF THE DISCLOSURE       THIS INVENTION CONCERNS A HOT MELT ADHESIVE COMPOSITION FOR PREVENTING SLIPPING WHICH IS APPLIED TO PARTS OF THE SURFACES OF PAPER DIAPERS OF THE TYPE WHICH REQUIRE DIAPER COVERS, SANITARY NAPKINS, ETC., IN ORDER TO PREVENT THE SAID DIAPERS OR NAPKINS FROM SLIPPING INSIDE DIAPER COVERS OR UNDERWEAR.
Patent CA-2030840-A1 (CA)
IPC: A01D34/00
Filed: 1990-11-26
Abstract: ABSTRACT OF THE DISCLOSURE         An automatic self-guiding lawn mower includes a carriage having first and second sets of electric motors mounted thereon.  A blade is operatively connected to and driven by each one of the first set of electric motors for cutting grass, and a wheel is operatively connected to and driven by each one of the second set of motors for moving the carriage.   A relay device having at least one trip point is electrically connected to each of the first motors and to the second set of motors.  The method of mowing a lawn with the improved lawn mower includes the steps of actuating the first set of motors and attached blades and manually cutting a border around the lawn with the mower. The mower then is positioned adjacent to a peripheral edge of an uncut area of the lawn.  The relay devices detect a predetermined change in the power consumption of their respective first motors corresponding to the trip point when the attached blades move between cut and uncut grass, and actuate certain ones of the second motors and attached wheels in response thereto for guiding the mower carriage along the peripheral edge of the uncut area of the lawn. The relay devices reverse the polarity of the second motors and the direction of the mower when the blades encounter cut grass for a first predetermined amount of time, and automatically shut off the first and second motors when the blades encounter cut grass  for a  second predetermined amount of time.
Patent CA-2031186-A1 (CA)
Title: Reactive compounds containing perfluorovinyl groups
Inventor: CLEMENT KATHERINE S
IPC: C07C45/70
Filed: 1990-06-04
Abstract: ABSTRACT     The present invention is directed to a compound and a process for preparing a compound having at least one perfluorovinyl group and at least one functional group, the compound suitable for reacting with and/or forming polymers.  The compound is preferably represented by the following Formula I:        (G)n-R-(X-CF=CF2)m          Formula I   wherein R represents an optionally substituted hydrocarbyl group, X represents any group which links R and a perfluorovinyl group; n is an integer of at least 1, m is an integer of at least 1; and G represents any reactive functional group or a group convertible into a reactive functional group.       The process for preparing the compound of Formula I comprises the steps of:     (a)  preparing a 2-halotetrafluoro compound of the following Formula III:          (Q-CF2-CF2-X)m-R-(G")n     Formula III   wherein R, X, m and n are as defined for Formula I and Q is bromine, chlorine or iodine; and G" is a functional group G. or a functional group suitable for conversion into G;          (b) chemically modifying group G" to produce functional group G where G" is a functional group suitable for a conversion into G; and (c)  dehalogenating the 2-halotetrafluoro compound to form the corresponding trifluorovinyl compound.
Patent CA-2032777-A1 (CA)
Title: Hydrogenation with cu-a1-x catalysts
Inventor: WEGMAN RICHARD WILLIAM
IPC: B01J23/74
Filed: 1990-12-20
Abstract: HYDROGENATION WITH Cu-Al-X CATALYSTS          ABSTRACT OF THE DISCLOSURE       A process for hydrogenating feeds into their corresponding alcohols by contact with a coprecipitated catalyst comprising copper, aluminum, and a metal (X) selected from the group consisting of mag-nesium, zinc, titanium, zirconium, tin, nickel, cobalt and mixtures thereof; that has been reduced with an increasing temperature during the reduction.
Patent CA-2032877-A1 (CA)
Title: Head suspension connection assembly
Inventor: JURGENSON RYAN A
IPC: G11B5/48
Filed: 1990-12-20
Abstract: ABSTRACT OF THE DISCLOSURE        A connection mechanism for connecting a pair of head suspension assemblies to a disc drive actuator arm in which the connection mechanism includes connection portions associated with respective load beams with such connection portions having cooperating, mating bosses extending into a mounting opening in the actuator arm and into interconnecting overlapping engagement with one another to result in an interference fit connection.
Patent CA-2033471-A1 (CA)
Inventor: GRAY CHARLES H JR
IPC: A62C2/04
Filed: 1990-12-31
Abstract: A  valve  installed  in  the  flow  line  of  a flammable or other hazardous flowable material which is normally  open  but  will  be  automatically  closed  to interrupt the flow of flammable or hazardous material to a discharge point in the event of a hazardous condition occurring.  The valve is held in an open position by a fusible link which retains a pivotal latch in engagement with a spring biased valve to retain the valve in open position.  The fusible link will melt when subjected to predetermined  conditions  such  as  a  high temperature condition which occurs in the event of a fire thereby releasing the latch and valve for movement to a closed position for stopping flow of flammable material in order to control the fire or other hazardous condition.
Patent CA-2040726-A1 (CA)
Title: Modular cable
Inventor: ARROYO CANDIDO J
IPC: G02B6/00
Filed: 1991-04-17
Abstract: An undercarpet cable (40) includes a plurality of longitudinally extending interlocking segments (42-42). The segments are designed each to have an optical fiber (33) housed therein or when interlocked in an assembly to provide a longitudinally extending cavity for receiving an optical fiber. The assembly of segments is capable of being routed along at least two paths which are normal toeach other. Advantageously, longitudinal relative motion between adjacent ones of the segments and between the optical fiber and the segments is allowed. As a result, the cable may be routed in tortuous paths under a carpet to service workstations as desired.
Patent CA-2042700-A1 (CA)
Title: Water soluble film
Inventor: VANPUTTE ANDREW
IPC: B29C47/04
Filed: 1991-05-15
Abstract: A water soluble film suitable for packaging caustic chemicals has an outer layer of a water soluble polymeric material, and an inner layer of a polymeric material which is compatible with the contents of a package made from the film. An intermediate layer can optionally be included to contribute to the tensile strength, bulk, or abuse resistance, or some other property of the film. Water soluble fillers such as salt can optionally be added to one or more of the polymeric materials, prior to or during extrusion of the film, to improve the processability of the film or its rate of dissolution in water, or to add a pigment to the film.
Patent CA-2042850-A1 (CA)
Title: Auxiliary operator for circuit interrupting apparatus
Inventor: HECKENKAMP DANIEL P
IPC: H01H9/22
Filed: 1991-05-17
Abstract: Abstract of the Disclosure A removable control unit of a motor control center has an auxiliary operator handle linked to a molded case circuit breaker handle for control of the circuit breaker externally of the motor control center cabinet.  An interlock slide bar is driven by the auxiliary handle to an extended position to block removal of the unit with the circuit breaker in the ON condition, and follows the handle by gravitational force to a withdrawn position upon movement of the handle to an OFF condition of the circuit breaker, the slide bar abutting a fixed stop prior to the handle reaching the OFF condition to separate the handle from the slide bar in the OFF condition.  A spring carried on the interlock slide bar is engaged by the handle to effect driving engagement, compression of the spring occurring only as the handle is nearly in the ON condition.
Patent CA-2043673-A1 (CA)
Title: Process for dyeing keratinic fibers with 2,4-dimethoxybenzene-1,3-diamines at acid ph; compositions used therefor
Inventor: COTTERET JEAN
IPC: D06P1/64
Filed: 1991-05-31
Abstract: Process for dyeing keratinous fibres, especially human keratinous fibres such as hair, wherein a composition containing in a medium suitable for dyeing, at least 2,4-diamino-1,3-dimethoxybenzene as coupler;  an oxidation dye precursor;  an oxidising agent; is applied on these fibres, the pH of the composition applied on the fibres being below 7.
Patent CA-2044671-A1 (CA)
Title: Transit operators revenue accounting system
Inventor: MARTIN PETER R
IPC: G06Q40/00
Filed: 1991-06-14
Abstract: ABSTRACT A system for selling tickets and accounting for their sale is disclosed. The system generally includes a number of depots (1) each of which servicing a plurality of operators (2) each of whom act to sell tickets (10) to patrons on the system. The issuing of tickets (10) is controlled at a ticket distribution point (12) whereby tickets are scanned (3) to record in a local computer (4) those tickets (10) issued to an operator (2). Subsequent to the sale of the tickets (10) the operator (2) deposits monies (11) into a counting machine (5) which records a transaction value within the local computer (4). An invoice is printed (9) for each operator (2). Revenue data is transferable about the system via communications network (6) between depots (1) and central computer (7) which includes a data base (8) of statistical information. Fig. 1 IAP/742o
Patent CA-2045319-A1 (CA)
Title: Automated coffee apparatus
Inventor: ANDERSON KYLE T
IPC: A47J31/42
Filed: 1991-06-24
Abstract: An apparatus and method for making expresso coffee automatically.  The apparatus comprises a microprocessor, a coffee bean hopper and a coffee grinder associated with the hopper.  A brewer assembly which receives a charge of ground coffee, packs it and retains it in compression.  A hot water injector injects hot water into the coffee, extracts the brewed liquid, delivers it to a drinking cup, and ejects the waste coffee grounds.  A steam operated air-milk venturi-mixer draws milk, air and steam and whips the milk into a heated froth which is delivered to the drinking cups.  The apparatus further includes a refrigerated milk supply, a water heater for supplying hot water and a steam generator.
Patent CA-2046436-A1 (CA)
Title: Neutron reflecting supermirror structure
Inventor: WOOD JAMES L
IPC: G21K1/06
Filed: 1991-07-08
Abstract: An improved neutron reflecting supermirror structure comprising a plurality of stacked sets of bilayers of neutron reflecting materials. The improved neutron reflecting supermirror structure is adapted to provide extremely good performance at high incidence angles, i.e. up to four time the critical angle of standard neutron mirror structures. The reflection of neutrons striking the supermirror structure at a high critical angle provides enhanced neutron throughput, and hence more efficient and economical use of neutron sources.
Patent CA-2048926-A1 (CA)
Inventor: NISHINO MASAKAZU
IPC: H04N5/92
Filed: 1991-04-22
Abstract: A video signal recording/reproducing apparatus which records pictures by compressing the video signal in multiple field units and reproduces the signal by the expansion process, and which continuously and repeatedly outputs each field of the reproduced television signal on the screen by use of field detecting unit which operates to ensure that a reciprocal of a multiplication index of a desired reproducing speed is selected as a number of continuous reproduction of one field and also by use of change-over unit for changing over the reproduced signal in field units.
Patent CA-2049142-A1 (CA)
Inventor: LONG HERBERT D JR
IPC: B61K7/06
Filed: 1991-08-14
Abstract: A latch for a crane travelable along a pair of generally parallel rails and having an overhead frame and a plurality of wheels engaging both of the rails for supporting the crane during its travel on the rails.  The latch comprises a latch arm mounted on the crane and having a path of movement substantially in the direction of travel of the crane.  The latch arm also includes a transversely protecting hook.  A latch block is stationarily mounted and has a lip member projecting into the path of movement of the latch arm.  The hook on the latch arm moves with the latch arm into engagement with the lip member and the lip member and hook have an engaged position in which the lip member is positioned between the hook and the crane whereby the crane is held from traveling away from the the latch block.  The latch may also include a compressible bumper mounted on the crane and engaging the latch block compressively in the direction of the crane travel toward the latch block.  The crane is thereby also held from traveling toward the latch block.  A support is positioned below the latch arm when the hook and lip means are in their engaged position.  The support is movable to an upward position beneath the latch arm to support the latch arm in an upward position in which the hook and lip member are disengaged.
Patent CA-2051332-A1 (CA)
Inventor: TANAKA HARUHIKO
IPC: C08K3/00
Filed: 1991-09-13
Abstract: Abstract of the Disclosure A polymer composition substantially comprising (A)  5 to 40 weight parts of a 1-butenic polymer, (B)  95 to 60 weight parts of an inorganic filler, (C)  a hydrocarbonic oil in an amount of 2 to 20 weight parts per 100 weight parts in total of the above (A) and (B), and (D)  a thermoplastic resin other than 1-butenic polymers in an amount of 0 to 20 weight parts per 100 weight parts in total of the above (A) and (B).
Patent CA-2051804-A1 (CA)
Inventor: GULUTZEN ALEXANDER M
IPC: F24B7/04
Filed: 1991-09-18
Abstract: ABSTRACT   A solid fuel burning stove is provided and includes a housing within which a combustion chamber is located. The combustion chamber receives combustion air via an adjustable inlet formed through a channel member running along the base of the housing. The channel member defines a combustion air duct which communicates with a combustion air intake in the rear wall of the housing.Combustion air is drawn into the stove via the air intake and is forced through the combustion air duct by a fan. The combustion air passes through the adjustable inlet into the combustion chamber. A fire box is located within the combustion chamberabove the adjustable inlet and holds the solid fuel to be combusted. Hot flue gasses heat air flowing through a plurality of heat exchange tubes passing through the combustion chamber. The heated air flowing through the heat exchange tubes is directed into the room in which the stove is located via a plurality of vents in the front wall of the housing. The hot flue gasses are then discharged from the stove via an exhaust in the rear of the stove. A hopper is also located within the housing and provides solid fuel to a delivery system which automatically replenishes the solid fuel in the fire box.
Patent CA-2052960-A1 (CA)
Title: Handoff procedure that minimizes disturbances to dtmf signalling in a cellular radio system
Inventor: DAHLIN JAN E A S
IPC: H04W36/08
Filed: 1991-10-08
Abstract: Disturbances to DTMF signaling between mobile stations and the land-based system caused by handoff are minimized. DTMF signals are transmitted in real time between a mobile station and its associated base station.      However, if during a DTMF transmission between a base station and the mobile switching center a handoff is requested, the handoff is delayed by a specified time in order to allow completion of the DTMF transmission.      Alternatively, both base stations involved in the handoff transmit overlapping DTMF tones until the handoff is completed. If the handoff is requested before the start of the DTMF tone transmission, the DTMF transmission is delayed until the handoff is completed.
Patent CA-2053389-A1 (CA)
Title: Porous ceramic water distributor for quenching hot gases
Inventor: MOERER GREGORY S
IPC: B01F3/04
Filed: 1991-10-11
Abstract: POROUS CERAMIC WATER DISTRIBUTOR FOR QUENCHING HOT GASES        ABSTRACT OF THE DISCLOSURE    A device for quenching hot gases.  This quenching device includes a porous ceramic water distributor composed of a porous ceramic material, a water distributor plate and a means for feeding water to the water distributor plate.  In operation, water is fed to the water distributor plate which then distributes water to the porous ceramic material through which the water flows.  The water exiting the porous ceramic material flows down the inner wall of the quenching device.
Patent CA-2057481-A1 (CA)
Inventor: STEIN MICHAEL H
IPC: E21B49/00
Filed: 1991-12-12
Abstract: A novel method for characterizing multilayer subterranean reservoirs comprising forming a single layer reservoir model representative of the flow parameters of the multilayer reservoir and developing a set of predicted flow rates from a numerical reservoir simulator.  The predicted flow rates are scaled to form a set of dimensionless flow rates.  Differences between actual reservoir flow rates and predicted flow rates obtained from the dimensionless flow rates, are minimized automatically to obtain estimates of flow parameters for each layer of the multilayer reservoir.  Additionally, for a given set of flow parameters, the optimum injection and production well patterns as well as injection and production well operating conditions can be determined for producing hydrocarbon from the multilayer reservoir.
Patent CA-2057740-A1 (CA)
Title: Process for the preparation of mixtures of cyclic acrolein glycerol acetals
Inventor: HOEPP MATHIAS
IPC: C07B61/00
Filed: 1991-12-16
Abstract: ABSTRACT OF THE DISCLOSURE            Mixtures of cyclic acrolein glycerol acetals can be obtained in higher volume/time yields than in prior art processes and with very high selectivity from the reaction of acrolein with glycerol in the presence of a solid acid catalyst and distillative working up if the reaction is carried out in the presence of the reaction mixture consisting substantially of acrolein, glycerol, cyclic acrolein glycerol acetals and water, this reaction mixture being used as solvent, and without additional solvents.  If necessary, a pH increasing agent may be added to the reaction mixture, after the latter has been freed from catalyst and before it is worked up by distillation, in an amount such that the pH of the reaction mixture in tenfold dilution with water is in the range of from 4.5 to 7.  The reaction is preferably carried out at 10 to 30°C, using a strongly acid organic or inorganic ion exchanger.
Patent CA-2058199-A1 (CA)
Title: Macpherson strut assembly or the like
Inventor: DE FONTENAY ETIENNE
IPC: B60G15/06
Filed: 1991-12-11
Abstract: MACPHERSON STRUT ASSEMBLY OR THE LIKE                   ABSTRACT OF THE DISCLOSURE     A MacPherson Strut assembly, or the like, with a hydroelastic suspension attachment in which the attachment is formed by two thick membranes of elastomeric composition which enclose a liquid.  This unit forms a hydroelastic cartridge in which a sliding flap, provided with sealing joints, can move within a rigid confinement cup.  The flap itself is encircled by a liquid passage having a large cross section clearance which causes a high level damping of vibrations which result from the resonant movement between masses between which the suspension attachment is mounted.