baber/WOPTO huggingface dataset:
Patent CA-1285860-C (CA)
Title: Chair
Inventor: CROSS MICHAEL G
IPC: A61G5/14
Filed: 1988-07-25
Granted: 1991-07-09
Abstract: ABSTRACT     An invalid chair      has a seat     which rises (under spring or other power) at the front      as well as at the back      to assist the occupant to stand.          The seat      is mounted by means of a mechanism comprising two pairs of tracks         on the frame and seat      respectively, two pairs of levers forming a scissor-like linkage      with lever ends carrying respective rollers         running in the tracks        , and torsion springs      to provide the force urging the seat      upwardly.  A latch mechanism       is provided to latch the seat down.  It can be released by a sitting occupant operating a manual device       under one arm When the seat      rises, the back      rises further than the front .
Patent CA-1319522-C (CA)
Title: Locking mechanism for multifunctional electronic lock
Inventor: FROLOV GEORGE
IPC: E05B47/00
Filed: 1988-08-30
Granted: 1993-06-29
Abstract: ABSTRACT               LOCKING MECHANISM FOR MULTIFUNCTIONAL ELECTRONIC LOCK      An electronic door locking apparatus which can perform a number of functions is provided.  The apparatus features a locking plate which is operated by solenoid action in such a manner that battery drain is minimized.  The apparatus may remain in an unlocked position for long periods of time without draining power.
Patent CA-1319212-C (CA)
Title: Polyphenylene ether resin composition
Inventor: MINEMATSU HIROYUKI
IPC: C08L55/02
Filed: 1988-09-13
Granted: 1993-06-15
Abstract: ABSTRACT          A resin composition comprising:          A) 10 to 90 parts by weight of a polyphenylene ether resin, (B) 8 to 88 parts by weight of an ABS resin, (C) 1 to 30 parts by weight of a first graft copolymer selected from the group consisting of (C-I) a graft copolymer which is obtainable by polymerizing a monomer mixture comprising an aromatic vinyl compound and at least one other compound copolymerizable therewith in the presence of a polymer (C-1) comprising an unsaturated nitrile compound, an aromatic vinyl compound and at least one other vinyl compound copolymerizable therewith and has a vinyl group at least at one of the molecular ends, and (C-II) a graft copolymer which is obtainable by polymerizing at least one vinyl compound in the presence of a polymer (C-1) and a polymer (C-2) comprising the aromatic vinyl compound and at least one other compound copolymeriza-ble therewith except unsaturated nitrile compounds and has a vinyl group at least at one of  the molecular ends, (D) 0 to 80 parts by weight of HIPS, and (E) 1 to 30 parts by weight of a second graft copolymer which is obtainable by polymerizing a monomer mixture comprising an unsaturated nitrile compound, an aromatic vinyl compound and at least one other vinyl com-pound copolymerizable therewith in the presence of a polymer which comprises an aromatic vinyl compound and at least one other vinyl compound copolymerizable therewith except unsaturated nitrile compounds and has a vinyl group at least at one of the molecular ends, provided that the second graft polymer is used in combination with the first graft copoly-mer (C-I).
Patent CA-1309214-C (CA)
Title: Portable blower
Inventor: MINER JONATHAN L
IPC: A47L11/24
Filed: 1988-11-01
Granted: 1992-10-27
Abstract: ABSTRACT                   PORTABLE BLOWER     A portable, rechargeable, battery-operated, slender tubular, blower (100) for removing relatively light debris (202) from hard surfaces such as sidewalks, driveways, decks or workbench surfaces uses an axial flow blower fan (307) arranged for noise minimization and energy efficient operation.  Blower tube inlet and outlet portions (106, 104) are arranged for debris removal effectiveness by optimizing airflow volume and velocity parameters.
Patent CA-1296706-C (CA)
Title: Device for displaying a first part relative to a second part
Inventor: ENAR NILSSON N
IPC: B66F7/16
Filed: 1988-11-22
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE            A lifting device comprising two piston cylinder mecha-nisms (1) is adapted to lift a first part (2) relative to a second part (3). The first part (2) is in releasable force transmitting engagement with the pistons (9) of the mechanisms. Arrangements (17) for restricting the expansion of the mechanisms act tensile force transmit-ting between the first part (2) and the cylinders (15) of the mechanisms. The portions of the pistons (9) inten-ded to be received in the cylinders have generally uni-form cross sections. The tensile force transmitting ar-rangements (17) are adapted to allow disengagement of the first part (2) from the pistons (9) and such movement of the first part that the pistons get free to be drawn out of the cylinders. (Fig 1).
Patent CA-1300110-C (CA)
Title: Screw mill for comminuting and compressing material for grinding
Inventor: GUTKNECHT MAX
IPC: B02C19/22
Filed: 1988-12-06
Granted: 1992-05-05
Abstract: ABSTRACT OF THE DISCLOSURE         A screw mill comprises two motor-driven conveyor screws mounted in rotary manner in a casing.  Each of the conveyor screws is subdivided into two portions.  A first portion is constructed as a cooperating conveyor screw pair located in a common working area, whilst in a second portion the conveyor screws are located in separate working areas and from separate outlets.  On the one hand, this avoids the occurrence of lateral forces and, on the other hand, due to the lack of constrictions in the working areas, ensures a high processing capacity.
Patent CA-1293932-C (CA)
Title: Apparatus and method for readjusting pressure relief poppet valves
Inventor: STROUD DONALD R
IPC: B62D5/10
Filed: 1988-12-20
Granted: 1992-01-07
Abstract: Abstract An apparatus for readjusting first and second adjustable pressure relief poppet valves to vent the fluid pressure moving a piston when the piston is at the ends of a second work stroke which is of a length less than a first work stroke for which the poppet valves are adjusted.  Each of the poppet valves is carried by the piston and includes a valve seat and a valve member movable relative to the valve seat.  The piston is disposed in a fluid chamber defined by a housing.  The piston divides the fluid chamber into first and second chamber portions.  One of the chamber portions is pressurized and the other is vented to move the piston in a work stroke.  The apparatus includes a member supported by the housing for moving the seat of the second poppet valve outwardly relative to the piston in response to the member moving relative to the housing and engaging the seat of the first poppet valve to move the seat of the first poppet valve inwardly relative to the piston.  The piston moves to one end of the second work stroke to engage the seat of the second poppet valve with a surface defining the fluid chamber to move the seat of the second poppet valve inwardly relative to the piston to an adjusted position enabling fluid communication between the first and second chamber portions when the piston is at the one end of the second work stroke.
Patent CA-1334870-C (CA)
Title: Speech synthesizer using shift register sequence generator
Inventor: MATSUO NORIKO
IPC: G10L13/08
Filed: 1988-12-28
Granted: 1995-03-21
Abstract: In order to simplify a speech synthesizer arrangement concurrently with improvement of operation flexibility thereof, a digital memory is arranged to store at least one voiced sound source and at least one unvoiced sound source.  One of the sound sources is selected in accordance with the content of a first register, while the data within the selected source is specified by the content of a shift register sequence generator.  Each of the bit patterns obtained at the shift register sequence generator is compared with the content of a second register.  In the event that the contents of the sequence generator and the second register coincide, the shift register sequence generator is reset and/or the operating condition(s) of the synthesizer is changed.
Patent CA-1333454-C (CA)
Title: Method of treating a foodstuff to inhibit the development of mutagens and carcinogens
Inventor: WEISSBURGER JOHN H
IPC: A23L5/20
Filed: 1989-01-06
Granted: 1994-12-13
Abstract: L-Tryptophan is applied to foodstuff to prevent the development of mutagens/carcinogens.  Before the cooking of a foodstuff such as hamburger, L-Tryptophan is applied to the surfaces thereof to inhibit, for example, the generation of IQ type carcinogens.  The L-Tryptophan can be sprinkled on the surface of the foodstuff or incorporated into a sauce which is applied to the foodstuff or put into solution in water or the like. Other non-toxic indoles such as L-proline have identical properties in specifically blocking the formation of heterocyclic amino type mutagens and carcinogens, as do mixtures of L-tryptophan and L-proline.
Patent CA-1332207-C (CA)
Inventor: BRENNAN BRIAN W
IPC: G01P3/486
Filed: 1989-02-15
Granted: 1994-10-04
Abstract: ABSTRACT OF THE DISCLOSURE            A  method  and  apparatus  for  monitoring  the  rate  of rotation of, for example, a turbine engine shaft during the operation of the engine is described.   A chopper extends radially from the shaft.  Infrared radiation is passed through an input optical fibre having a bevelled end positioned adjacent to the chopper which chops the infrared  radiation.   The  chopped  infrared  radiation passes into a bevelled end of an output optical fibre which is positioned adjacent to the chopper.  The rate of rotation of the shaft is detected by monitoring the chopped  infrared  radiation  from  the  output  optical fibre.    Carbonaceous  coatings  are  formed  on  the bevelled ends of the optical  fibres by deposition of oil  and combustion products  thereon.   Although these coatings  are  opaque  to  visible  light, they  are transparent to the infrared radiation used.
Patent CA-1324112-C (CA)
Inventor: NYCZ JOSEPH D
IPC: B65D47/04
Filed: 1989-02-22
Granted: 1993-11-09
Abstract: ABSTRACT OF THE DISCLOSURE      A dispensing closure for attachment to the finish of a bottle to selectively permit or prevent the dispensing of a flowable product in the bottle through an opening in the closure.  The closure is made up of a molded plastic, cup-shaped base cap member, the dispensing opening being in a top of such base cap member, and a molded plastic generally planar closing member an end of which is pivotally received in a depressed socket portion of the base cap member.  The closing member carries a plug which is engaged in the dispensing opening of the base cap member when the closing member is in a first position relative to the base cap members and the plug is out of engagement with the dispensing opening when the closing member has been pivoted with respect to the base cap member from the first position to a second position.  The end of the closing member which is received in the depressed socket portion of the base cap member is reinforced to prevent it from popping out of the depressed socket portion as the  losing member is pivoted from the second position back to the first position.
Patent CA-1320828-C (CA)
Title: Aligning
Inventor: FREEMAN GARY T
IPC: H05K3/12
Filed: 1989-04-17
Granted: 1993-08-03
Abstract: ABSTRACT OF THE DISCLOSURE An aligning system includes an object to be acted upon at predetermined locations, such as a circuit board to receive solder paste.   There is a device,  such as  a stencil,  characterized by the pattern for acting upon the object.   A video probe is arranged to  look at both the device  and  the  object   for  providing  image  signals representative of both.  A comparator compares the image signals  to  provide  an  error  signal  representative  of misalignment between the device and object.  A positioner responsive to  the  error signal relatively positions the device and object to reduce the error.  An operator causes the device to operate upon the object at the predetermined locations.
Patent CA-1326754-C (CA)
Inventor: KAESLER RALPH W
IPC: C01B25/225
Filed: 1989-05-02
Granted: 1994-02-08
Abstract: ABSTRACT     Separation of gypsum from phosphoric acid liquor produced during the production of phosphoric acid from finely ground phosphate rock is enhanced by use of filtration aids.          These filtration aids are characterized as containing  a sulfonated acrylamide polymer containing at least about 1 mole percent sulfonate and having a reduced specific viscosity (RSV) of at least 5, the sulfonated polymer being selected from the group consisting of 2-acrylamido-2-methylpropanesulfonate/ acrylamide, 2-acrylamido-2-methylpropanesulfonate acrylate/ acrylamide and 2-acrylamidoethanesulfonate/acrylate/acrylamide.
Patent CA-1314056-C (CA)
Inventor: EDWARDS CHARLES L
IPC: C11D1/72
Filed: 1989-05-18
Granted: 1993-03-02
Abstract: A B S T R A C T          NARROW RANGE ALKANOL ALKOXYLATES      A process for the preparation of narrow-range alkanol alkoxylates by contacting and reacting an alkylene oxide reactant comprising one or more C2 to C4 vicinal alkylene oxides with an alkanol reactant comprising one or more C6 to C30 alkanols in the presence of a catalytically effective amount of a catalyst prepared by contacting (i) sulfuric acid with (ii) an aluminum catalyst component comprising one or more aluminum alcoholates or aluminum phenolates, characterized in that the said contact and reaction are carried out in the presence of a catalyst prepared by contacting the sulfuric acid and the aluminum catalyst component in a molar ratio of sulfuric acid to aluminum alcoholate or phenolate which is in the range from 0.2:1 to 0.7:1 and further in the presence of a quantity of water in a molar ratio of water to aluminum alcoholate or phenolate which is in the range from 0.1:1 to 1.5:1.
Patent CA-1341120-C (CA)
Inventor: GOSIO GIOVANNI
IPC: B22D11/12
Filed: 1989-05-25
Granted: 2000-10-17
Abstract: A process for the continuous production of hoop steel or sheet steel from flat products produced according to the continuous arched casting process having a horizontal run-out direction is disclosed. The process comprises deformation of the flat product after solidication of the continuous casting in a first deformation stage at temperature exceeding 1100°C, inductive reheating up to a temperature of about 1100°C and deformation of the flat product in at least one further deformation stage. The process makes it possible to produce coils of strip steel of any desired mass and sheets of sheet steel of any desired length without modifying the dimension parameters of the installation. An installation to carry out the process is also disclosed.
Patent CA-1315633-C (CA)
Title: Perfusion balloon catheter
Inventor: GOLDBERGER JEFFREY
IPC: A61F2/958
Filed: 1989-05-26
Granted: 1993-04-06
Abstract: ABSTRACT OF THE INVENTION A  balloon  catheter  utilizing  a  perfusion balloon at one end thereof is described.  The perfusion balloon has a doughnut shaped cross section having a central  opening  formed  therethrough.    The  central opening provides a blood flow passage even when the balloon is fully inflated.  When inflated, the perfusion balloon is used to dilate a stenotic region of a blood vessel or heart valve to restore blood flow.   After deflation, if the blood vessel collapses, the balloon catheter of the present invention can be reinflated and kept in place while the patient is prepared for surgery. In this manner,  acceptable blood  flow  is provided regardless of the length of time required for surgical preparation.   In an alternate embodiment,  a one-way valve is formed integrally with the perfusion balloon so that the present invention may be better applied to valvuloplasty.   In this application, the balloon is inflated at a stenotic region of a heart valve to expand the valve and restore acceptable blood flow.  The one-way valve of the perfusion balloon takes the place of the coronary valve so that normal operation of the heart can be maintained during the valvuloplasty process.
Patent CA-1339526-C (CA)
Title: Recombinant myco-bacterial expression vehicles and uses therefor
Inventor: BLOOM BARRY R
IPC: C07K14/01
Filed: 1989-07-06
Granted: 1997-11-04
Abstract: Recombinant cultivable mycobacteria capable of expressing DNA of interest which encodes at least one protein antigen against which an immune response is mycobacteria.   In the recombinant mycobacteria, the DNA of interest is stably maintained extrachromosomally or is stably integrated into genomic DNA.  Such recombinant mycobacteria are useful as vehicles to be used as vaccines to provide immunity against a pathogen, as anti-fertility "vaccines" and as a means to nonspecifically augment immune responses to foreign antigens expressed by BCG or to treat human cancers. The present invention also relates to recombinant vectors useful in introducing DNA of interest into mycobacteria, where it is expressed.  One type of vector is a recombinant phasmid capable of replicating as a plasmid in E. coli and of lysogenizing a mycobacterial host.  A second type of vector is a recombinant plasmid which can be introduced into mycobacteria, where it is stably maintained extrachromosomally.  A third type of recombinant vector is one which replicates in E. coli but not in mycobacteria.
Patent CA-1324421-C (CA)
Title: Integrated multiple particle agent for inductive heating and method of inductive heating therewith
Inventor: LEATHERMAN ALFRED F
IPC: H05B6/02
Filed: 1989-07-21
Granted: 1993-11-16
Abstract: Abstract Of The Present Invention An integrated multiple particle heating agent is provided for heating, particularly using the agent for heating and bonding plastic substrates.  The inte-grated multiple particle heating agent includes significant portions of non-conductive ferromagnetic oxide particles which generate heat because of hysteresis losses and of conductive ferrous particles which generate heat because of eddy current losses. The dual particles are thoroughly intermixed and re-spond to a magnetic field of an appropriate RF frequency.  The ferromagnetic particles are submicron size and the ferrous particles are micron size.  The particles are combined with an inert resin carrier and applied as a coating, directly incorporated within the substrate, or as a separate element.  The ferromagnetic oxide loading is generally less than the ferrous particle loading, with a range of 30 to 60 percent (40 to 50 preferred) by weight of ferrous particles and a range of 10 to 50 percent (15-25 preferred) by weight of the oxide particles.  The radio frequency magnetic field can be in the range of 1.2 to 7 megahertz (MHz) with 3.5 to 4 MHz being typical.  The integrated submicron sized ferromagnetic particles and micron sized ferrous particles generate heat at a significantly and unexpectedly high rate using a single RF magnetic field of a relatively low frequency.  The percentage loading may vary with different substrates.
Patent CA-1326983-C (CA)
Title: Needleless drug delivery system
Inventor: LINDMAYER ISTVAN
IPC: A61D7/00
Filed: 1989-08-22
Granted: 1994-02-15
Abstract: ABSTRACT OF THE DISCLOSURE           A relatively simple portable, needleless apparatus for injecting drugs into cattle, etc. includes a fluid actuated, pistol-type, manually operated injector for discharging a drug under pressure; and a portable drive mounted in a backpack for controlling operation of the injector, the drive including a hydraulic fluid reservoir, a pressure accumulator for receiving fluid from the reservoir, a DC motor and pump combination for pumping fluid from the reservoir through a one-way valve to the accumulator when the pressure therein reaches a predetermined level, a solenoid valve permitting the flow of fluid under pressure from the accumulator to the injector to operate the latter, and for returning fluid from the injector to the reservoir following an injection.
Patent CA-1295380-C (CA)
Title: Amplifier with modulated resistor gain control
Inventor: MYER ROBERT E
IPC: H03G3/20
Filed: 1989-09-25
Granted: 1992-02-04
Abstract: AMPLIFIER WITH MODULATED RESISTOR GAIN CONTROL Abstract An automatic gain control circuit for an amplifier operating over a prescribed frequency range detects the output level of the amplifier and couples a repeated predetermined waveform occurring at a rate greater than the reciprocal of twice the upper frequency of the prescribed frequency range to the output level signal. The waveform varying level signal is compared to a reference threshold to control the gain of the amplifier through a switched resistive element in the amplifier feedback path. The repeated waveform variations about the amplifier output levelcauses the value of the switched resistance to vary as a function of the output level. A low pass filter connected to the amplifier output removes switching transientsresulting from the high frequency changes in the switched resistive element. Thegains of a plurality of amplifiers may be determined by a common control for accurate tracking over a wide dynamic range.
Patent DK-160617-C (DK)
Inventor: JOHNSTON PAUL DOUGLAS
IPC: C12P21/02
Filed: 1983-10-31
Granted: 1991-09-16
Abstract: A method of removing oligomers and slow monomer from leukocute interferon (IFN- alpha ) having high sequence homology with human leukocyte interferon which method comprises:
 a) incubating a buffer solution containing 1-20 mg/ml of IFN- alpha  at a pH between 3 and approximately 4.8 for 30 minutes-24 hours at 28-40 DEG C to precipitate oligomers and slow monomer followed by;
 b) recovering native IFN- alpha .
Patent DK-159995-C (DK)
Inventor: LINK HELMUT DETLEF
IPC: A61F5/10
Filed: 1985-11-06
Granted: 1991-07-01
Abstract: 1. A finger splint for fixing the outermost finger joint in an extended position, comprising a cup (1) supporting the outermost finger joint and the end segment on the underside, and a cup (8) supporting the outermost finger joint and the medial segment on the upper side, which cups are joined together near the outermost finger joint, wherein the underside cup (1) is cut away except for a web (5) supporting the outermost finger joint, a hollow accommodating the lower part of the finger-tip (4) and two side walls joining together the web and the hollow, characterised in that the cut-away portion is oval.
Patent FI-76233-C (FI)
Inventor: GRAUEL CHRISTOPH
IPC: H04B7/26
Filed: 1983-12-14
Granted: 1988-09-09
Abstract: A system and process is described for spreading the volume of traffic over different control channels of a cellular radio transmission system. A base station having at least two control channels subdivides the number of mobile radio stations in a cellular area of the base station into groups, of a variable number of groups. The base stations transmit the number of groups and a group code on each control channel. The mobile stations receiving the transmitted information detect the number of groups and group code of each channel. The mobile radio stations will combine the number of groups and the received group code with the stored group number. The result of this combination determines the channel over which the mobile station control is to be assigned.
Patent FI-88692-C (FI)
Inventor: BELKA HEINRICH
IPC: B62J6/00
Filed: 1986-05-27
Granted: 1993-06-28
Abstract: A mounting apparatus for a cycle headlamp, particularly for a bicycle headlamp, features a mounting bracket (13) which can clamp onto a horizontally disposed strut of the cycle frame or of a cycle accessory, such as a baggage carrier. The cycle headlamp has a reflector housing (9) which is rotatably coupled to the upper end of the mounting bracket (13). The lower end (14) of the mounting bracket is bifurcated into upper (15) and lower (16) legs or jaws, which define a bight or maw (18) having an interior clamping surface (17) which is preferably half-cylindrical but may also be polygonal. A further clamping element (24, 25) is supported by the jaws (15, 16) and presses the strut (7) between itself and the clamping surface (17). This mounting is very secure and resists twisting torques. Preferably, the clamping element includes a frusto-conical nut (25) which rides in a smooth bore (22) in one jaw (15) and is threaded onto a countersunk screw (24) mounted in a correspondingly shaped bore (23) in the other jaw (16).