baber/WOPTO huggingface dataset:
Patent CA-1330372-C (CA)
Inventor: GUILHEM MICHEL
IPC: B01J41/05
Filed: 1987-07-09
Granted: 1994-06-21
Abstract: Abstract A combined membrane/sorption process is used to selectively remove ions from liquid streams.  As an example, nitrate ions can be more effectively removed from an aqueous stream also containing sulfate ions. Sulfate ions normally are not needed or desired to be removed from drinking water, but are typically sorbed by the available ion exchange resins and result in inefficient use of the ion exchange capacity.  The disclosed process and apparatus use an ion selective membrane to first remove the sulfate ions from the stream and then remove the nitrate ions by ion exchange.
Patent CA-1311049-C (CA)
Title: Surface lubricants for recording surface
Inventor: FREW DUNCAN W
IPC: G11B5/72
Filed: 1987-08-21
Granted: 1992-12-01
Abstract: ABSTRACT OF DISCLOSURE    Magnetic recording media wherein the record surface is coated with an isocyanate lubricant (and, preferably, a supercoat of like lubricant), such lubrication being adapted to inhibit spin-off and like depletion, despite frequent head contact, while exhibiting good durability, wear resistance and recording characteristics over extended life (computer applications).
Patent CA-1299081-C (CA)
Inventor: GIBB JOHN F
IPC: E04B1/684
Filed: 1987-08-24
Granted: 1992-04-21
Abstract: HEAT EXPANDABLE FIREPROOF AND FLAME RETARDANT CONSTRUCTION PRODUCT            A B S T R A C T A non-combustible blanket material is provided for use in manufacture and construction application to prevent the spread of flames and heat.  The blanket material includes a substrate layer made of inorganic fibers formed into a fireproof, porous cloth.  In addition, a heat-expandable non-combustible layer is permanently affixed to one side of the substrate layer.  This flame retardant layer includes a combination of fireproof manufactured fibrous material of relatively short length and random orientation, heat expandable particles of temperature sensitive material, and a fireproof adhesive for binding the fibrous material and the heat expandable particles together as well as binding the combination to the substrate layer.  The heat expandable particles are adapted to increase the thickness of the flame retardant layer when subjected to temperatures substantially in excess of ambient.
Patent CA-1329077-C (CA)
Inventor: KONNO TSUNEO
IPC: F02F1/42
Filed: 1987-08-26
Granted: 1994-05-03
Abstract: ABSTRACT    Valve operating apparatus for an internal combustion engine in which plural intake valves and exhaust valves are associated with each cylinder.  The respective valves are operated in one engine-operating condition in response to the action of a first set of cams and in another engine-operating condition in response to the action of a second set of cams coupled to the first cam set.  The cams operating the intake valves impart a different valve operating action than those operating the exhaust valves.
Patent CA-1307345-C (CA)
Inventor: BRONSON EDWARD C
IPC: G10L25/90
Filed: 1987-08-27
Granted: 1992-09-08
Abstract: DIGITAL SPEECH VOCODER       Abstract A speech analyzer and synthesizer system using a sinusoidal encoding and decoding techniques for voiced frames and noise excitation or multiple pulseexcitation for unvoiced frames. For voiced frames, the analyzer transmits the pitch, values for each harmonic frequency by defining the offset from integer multiples of the fundamental frequency, total frame energy, and linear predictive coding, LPC, coefficients. The synthesizer is responsive to that information to determine the phase of the fundamental frequency and each harmonic based on the transmitted pitch and harmonic offset information and to determine the amplitudes of the harmonics utilizing the total frame energy and LPC coefficients. Once thephase and amplitudes have been determined for the fundamental and harmonic frequencies, the sinusoidal analysis is performed for voiced frames. For each frame, the determined frequencies and amplitudes are defined at the center of the frame, and a linear interpolation is used both to determine continuous frequencyand amplitude signals of the fundamental and the harmonics throughout the entireframe by the synthesizer. In addition, the analyzer initially adjusts the pitch so that the harmonics are evenly distributed around integer multiples of this pitch.
Patent CA-1293733-C (CA)
Inventor: SHROOT BRAHAM
IPC: C07D333/54
Filed: 1987-08-28
Granted: 1991-12-31
Abstract: L'invention concerne un acide 2-(5,6,7,8-tétra-hydro-5,5,8,8-tétraméthylnaphtyl)-6-benzo ¦b¦ thiophènecarboxylique marqué au tritium; sa préparation et son utilisation notamment comme marqueur radioactif dans la détermination de l'affinité, de la présence ou de la teneur des rétinoîdes des possédant un groupement carboxylique et/ou dans la caractérisation d'anticorps dirigés contre cet acide et/ou dans la quantification du récepteur cRABP desdits rétinoîdes.
Patent CA-1306414-C (CA)
Title: Affinity enhancement system
Inventor: BARBET JACQUES
IPC: A61K47/00
Filed: 1987-09-17
Granted: 1992-08-18
Abstract: ABSTRACT          AFFINITY ENHANCEMENT IMMUNOLOGICAL REAGENTS FOR DETECTION AND KILLING OF SPECIFIC TARGET CELLS             Immunological reagents, consisting of a) antibody or fragment conjugates having both an anti-cell specificity and an anti-hapten specificity, and b) synthetic tracers containing at least two hapten sites and at least one site suitable to attach radioactive isotopes, paramagnetic ions, drugs or toxins, are provided. These reagents are capable of binding to target cells in a specific way, and the tracer localizes preferentially on the membrane of antigen-bearing cells, even in the presence of excess antibody conjugate (affinity enhancement).  These reagents are usefully employed, either in vitro or in vivo, to detect tumors, metastases, or other tissue injuries, when the synthetic tracer carries radioactive or paramagnetic compounds, and to kill target cells when the synthetic tracer carries radioactive compounds or drugs or toxins.
Patent CA-1312207-C (CA)
Title: Recovery of germanium from aqueous solutions by solvent extraction
Inventor: NEUDORF DAVID A
IPC: C22B41/00
Filed: 1987-09-29
Granted: 1993-01-05
Abstract: ABSTRACT OF THE DISCLOSURE         An improved method for selectively recovering Ge from acidic solution containing Ge and typically Zn, As, Cd, Sb, In, Cu and Fe (II) by multistage, countercurrent liquid-liquid extraction is described.  The extractant used in the organic phase is an oxime, for example 5,8-diethyl-7-hydroxy-6-dodecanone oxime, mixed with at least one alkylphosphoric acid, for example either di-2-ethylhexyl phosphate alone or admixed with mono-2-ethylhexyl phos-phate, dissolved in a hydrocarbon diluent.  This mixed system shows better selectivity for germanium than known systems using either oximes or alkylphosphoric acids separately.
Patent CA-1303076-C (CA)
Title: Dampening shock absorber
Inventor: CHRISTOPHERSON ROLLIN F
IPC: B60G11/56
Filed: 1987-10-05
Granted: 1992-06-09
Abstract: ABSTRACT         A  dampening   shock  absorber  (10)  for  retrofit  or original  construction  with  a   conventional  gas   charged  or hydraulic shock  absorber or  strut having an annular sleeve (14) telescoped in sliding engagement over an  inner  sleeve  (13) to provide therewith  a spring  biasing to return the shock absorber to a  null  state  after  a  displacing  force  has  been removed therefrom.    The  spring  biasing  is  provided by a single coil spring (26)  that is  telescoped over  an annular  sleeve of that shock absorber  that has  at least  a pair  of longitudinal slots (17) removed therefrom, which  coil  spring  ends  are maintained between  outwardly   extending  flanges  of  a  pair  of  sliding retaining clips (18) and  (19)  that  are  telescoped  over said annular sleeve that also include inwardly projecting fingers (20) and (21), said fingers each  to  engage  a  slot end  and extend therebeyond so  as to  engage an  inner side  or edge of one of a pair of guide rings (28a) and  (28b) that  are secured  in spaced arrangement around  the inner  sleeve, the distance between which opposite guide ring inner sides is equal to the longitudinal slot length.     The  inwardly   projecting fingers  are  thereby  in overlapping  engagement  with  the  longitudinal  slot  ends  for maintaining  retaining  clip  positioning  with  the  coil spring compressed therebetween, the relationship between which retaining clip fingers, longitudinal slot ends, and guide rings inner sides or edges to provide for sliding  movement of  the retaining clips towards  one   another  so   as  to   compress  the  coil  spring therebetween when  the inner  and annular  sleeves are telescoped together or pulled apart.
Patent CA-1292537-C (CA)
Title: Motor control for banknote handling apparatus
Inventor: BARNES ELWOOD E
IPC: H02P3/08
Filed: 1987-10-07
Granted: 1991-11-26
Abstract: Abstract An improved motor control for banknote handling apparatus is described.  An improved stacker pusher motor arrangement has a defined cycle of operation.  The time it takes the stacker pusher motor to complete a predetermined portion of this cycle is measured.  A braking time is computed from the measured time, and a braking control signal dependent thereon is applied to the stacker pusher motor to stop the stacker pusher motor at the appropriate position.  An improved banknote transporting arrangement measures the time needed for a banknote to travel from a first point to a second point.  A braking time is computed from the measured time and an appropriate braking control signal is applied to stop the banknote at the appropriate position.
Patent CA-1285653-C (CA)
Title: Magnetron device
Inventor: NOBUE TOMOTAKA
IPC: H01J23/22
Filed: 1987-10-15
Granted: 1991-07-02
Abstract: Abstract:           The present invention is directed to a magnetron device which includes an anode cylinder incorporated with multi-resonant cavities, an output antenna arranged in a direction normal to the axis of the anode cylinder, a set of strap rings arranged through holes in vanes, an antenna lead having its one end directly connected to the strap ring, and its other end connected to the output antenna, and an exhaust pipe provided at one end of said anode cylinder.  The magnetron device operates at high efficiency, is compact in size, and low in noise.
Patent CA-1306600-C (CA)
Title: Dry shavers
Inventor: PACKHAM CHARLES C
IPC: B26B19/02
Filed: 1987-11-06
Granted: 1992-08-25
Abstract: ABSTRACT         In a twin head dry shaver, the shaver heads are carried at the upper end of a four-bar mounting linkage comprising vertical side members 1A, 1B and bell crank links 2, 3 pivotally connected to the side members at point  7, 8 and 9, 11. The links are pivotally connected to the frame by pivot pins 4 and 6 set above and mid-way between the connections to the side members, thus render-ing the heads highly sensitive to cut of balance forces acting on the heads so that they may move vertically, relative to each other to restore the balance.
Patent CA-1286108-C (CA)
Title: Universal picture support assembly
Inventor: LANSKY MARC A
IPC: A47G1/16
Filed: 1988-01-13
Granted: 1991-07-16
Abstract: ABSTRACT    A support assembly for facilitating the hanging or display of a picture, preferably provided in the form of an unassembled kit, includes a plurality of separate relatively rigid elongate channel-like grid members preferably identical in construction and a plurality of attachment members preferably in the form of double-sided, acid free adhesive strips for attaching the grid members to the back of a picture.  Each grid member has a plurality of slots defined at uniformly spaced locations therealong for facilitating the breaking off of an end portion thereof to provide the grid member matched in length to a dimension, such as the length or width, of the picture.  A plurality of spaced apart rupturable webs are provided which span each slot and integrally interconnect portions of the grid member that define opposite sides of each slot so as to reinforce the grid members at the locations of the slots.  Also, each grid member has a plurality of notches defined at spaced locations therealong for facilitating interfitting of the grid members together in a gridwork pattern.  The double-sided adhesive strips can be provided separate from the grid members or alternatively preapplied thereto so that they only need to be cut off to the lengths of the grid members and applied to the back of the picture.  Resilient clips are provided to hold a sheet of glass on the front of the picture.
Patent CA-1305745-C (CA)
Inventor: LANGER RUTH GEB LAYHER
IPC: E04G7/30
Filed: 1988-01-25
Granted: 1992-07-28
Abstract: ABSTRACT OF THE DISCLOSURE           The system includes vertical posts with apertured disks secured thereto at intervals, coupling heads, wedge-like keys, scaffold pipes, coupling head extensions, and tang-link heads.          Each coupling head has a horizontal slot receiving an apertured disk when the head is pushed into mounted position thereon, and has top and bottom key-receiving openings above and below such slot. A wedge-like key extends down through the top key-receiving opening, through a disk aperture, then through the bottom key-receiving opening, fastening the coupling head to the disk.    Coupling heads for horizontal scaffold pipes have extensions insertable into the pipes.  Diagonal scaffold pipes have tang-link heads, whose tang has an aperture for a pivot provided on an associated coupling head.  Conventionally, the disks, coupling heads and pipes are all made of steel, the disks of 9 mm thickness and 122 mm diameter.  The disclosed lighter-weight version employs disks and scaffold pipes made not of steel, but of light metal such as aluminum.  The coupling heads although still of steel are differently designed, employing a smaller volume of material and thus lighter in weight.  The disks are of 10 mm thickness and 124 mm diameter, producing a 33% loadability increase.  Numerous other dimensional and configurational modifications of the standard elements compensate for any structural strength inferiority compared to the standard elements, but the herein disclosed lighter-weight versions thereof remain compatible with, and can be freely intermixed with, the heavier-weight standard elements.
Patent CA-1298137-C (CA)
Title: Flexographic printing machine, especially for flexographic web printing
Inventor: LAUBER PETER
IPC: B41F5/24
Filed: 1988-05-05
Granted: 1992-03-31
Abstract: ABSTRACT    A flexographic printing machine, especially for flexographic web printing, has at least one printing unit.  Such a printing unit comprises a printing cylinder or an endless printing belt (10) drawn on round a back-up cylinder (12) and a tension roller (14), an impression cylinder (24), an engraved roller (18) transferring the ink to the printing cylinder or to the printing belt, and an ink drier.  A paper web (22) runs through all the printing units.  Incorporated in each printing unit are a working engraved roller (18a), which can be uncoupled from the drive shaft (70) of the flexographic printing machine during the operation of the latter, and at least one stand-by engraved roller (18b) which can be connected automatically in exchange during the set-up time.          (Figure 3)
Patent CA-1313564-C (CA)
Inventor: DEEM JAMES R
IPC: H01H35/14
Filed: 1988-05-12
Granted: 1993-02-09
Abstract: ABSTRACT OF THE DISCLOSURE     Battery disconnect apparatus (1) for interrupting flow of power through an electrical circuit.  A circuit breaker (3) is connected  between a  battery  (B)  and  one  or  more  components connected  in  the  circuit.   A  switch  (23)  holds  the  circuit breaker in its closed position and moves the circuit breaker from its closed to an open position thereby interrupting the circuit.  A force responsive mechanism 37 triggers the switch in response to extraordinary forces being exerted on a vehicle in which the battery and components are installed.
Patent CA-1301448-C (CA)
Title: Precision positioning system for a coater
Inventor: FITZGERALD JOHN W JR
IPC: B05C3/18
Filed: 1988-07-08
Granted: 1992-05-26
Abstract: PRECISION POSITIONING SYSTEM FOR A COATER     Abstract of the Disclosure A die, preferably one with internal metering pumps for applying an extremely uniform coating to a traveling web, is mounted over a pair of very rigid side plates.  Horizontal surfaces of the plates support linear slides which in turn support the die through uprights.  The slides have preloaded bearings to allow a linear movement of each upright with no lost motion.  Pneumatic cylinders move each upright along its slide independently of the other upright.  Adjustable stops set the die-to-web spacing when the cylinders draw the uprights, and therefore the die, toward the web.  Other air/hydraulic cylinders drive the uprights away fro- the web, against the action of the main cylinders, to jump splices in the web.  The system preferably-includes an outrigger arm extending from each upright to a pair of auxiliary linear slides mounted on the side face of each side plate to relieve side loading on the main linear slides.  In the preferred form, the stops are positioned and the actuators are controlled by a servo loop to provide, in combination with the independently movable uprights, continuous automatic control of the cross web coating dimensions in response to a coating thickness sensor.  The servo system preferably also controls adjustment screws across the die to provide a continuous automatic control of the web coating profile.
Patent CA-1336020-C (CA)
Title: Clarification process
Inventor: BROWNE GEOFFREY R
IPC: C02F1/52
Filed: 1988-08-16
Granted: 1995-06-20
Abstract: A process for clarifying liquors containing suspended solids is disclosed.  The process is applicable to liquors having concentrations of suspended solids ranging from low to high, typically between 0.5 and 40 gm/l.  The clarification process is characterized by the addition of flocculent and in excess of 50 gm/l inert particulate material so as to cause the formation of flocs comprising suspended solids and inert particulate material thereby to separate the suspended solids from the liquor.  The inert particulate material is selected from silica sand, magnetite, limestone, ilmenite, hematite and calcite.
Patent CA-1311577-C (CA)
Title: Epoxide and rubber based curable compositions
Inventor: CHASSER ANTHONY M
IPC: C08L9/00
Filed: 1988-09-09
Granted: 1992-12-15
Abstract: Abstract A one package, stable curable composition contains: (a)  a non-functional polydiene; (b)  a polyepoxide; and (c) a sulfur and zinc containing vulcanization system adapted to cure the polydiene and the polyepoxide. The aforesaid curable composition is suitable for use as a sealant composition.
Patent CA-1328079-C (CA)
Inventor: FREGLY MELVIN J
IPC: A61K31/405
Filed: 1988-09-30
Granted: 1994-03-29
Abstract: ABSTRACT           A composition and method for treating hypertension, cardiac or renal hypertrophy, polydipsia, polyuria, stroke or atherosclerosis based on chronic administration of L-tryptophan or L-5-hydroxytryptophan.
Patent CA-1308939-C (CA)
Title: Lower gearcase shift mechanism for marine propulsion device
Inventor: DRETZKA ROBERT G
IPC: B63H20/14
Filed: 1988-10-26
Granted: 1992-10-20
Abstract: ABSTRACT     The invention provides a marine propulsion device having a lower unit including a power transmission mechanism comprising a bevel gear having a first clutch element, a propeller shaft having a second clutch element and mounted for rotational movement and for axial movement between a neutral position and an engaged position with the propeller shaft clutch element in driven engagement with the first clutch element, [selectively engageable means on the bevel gear and on the propeller shaft for rotating] the propeller shaft at a rate less than the rotational rate of the bevel gear, and means biasing the propeller shaft to the neutral position, the [biasing means] being overcome to afford movement of the propeller shaft to the drive position in response to propeller shaft rotation.
Patent CA-1303875-C (CA)
Title: Cambered pin cvt chain belt
Inventor: IVEY JOHN S
IPC: F16G5/18
Filed: 1988-10-28
Granted: 1992-06-23
Abstract: CAMBERED PIN CVT CHAIN-BELT            ABSTRACT       A chain-belt  (19)  for engagement with the pulleys (11,12)  of a continuously variable transmission  (10) consists of interleaved sets of chain links (21,22) joined for articulation by a joint   (28)  which has a rocking action.   The joint includes a pair of pins  (29,31).   A small camber (48)  is introduced into one or both of the pins (29,31) to create a spring load between the pins and the links to retain the pins in the chain during handling and assembly.   Each chain link includes a pair of spaced apertures  (23)  adjacent the opposite ends; each aperture has a generally hour-glass shape with the enlarged ends (24,25) receiving the pins.   Also, each chain link (21 or 22) has a pair of oppositely disposed tabs (36,40) adjacent one end  (35) with the location of the tabs on the links alternating on adjacent links of each set.  In addition the outermost two links (21 or 22) of each set of links had a width substantially less than the width of the inner links in that same set.
Patent CA-1330175-C (CA)
Inventor: ERAMO LINCOLN JR
IPC: G03C1/74
Filed: 1988-12-07
Granted: 1994-06-14
Abstract: PHOTOIMAGEABLE COMPOSITIONS            Abstract of the Disclosure A photoimageable composition includes a polymeric binder which is soluble in aqueous solution; a cross-linking agent for the polymeric binder; a polymerizable acrylic substance; a chemical, photosensitive, free radical-generating initiating system; and a liquid epoxy resin composition and an epoxy cure catalyst. In one method of using the photoimageable composition of the present invention, the composition is applied as a film to a substrate, heated to make the film non-tacky but still aqueous-soluble, exposed to actinic radiation, developed in aqueous solutions to wash away non-exposed portions of the film and heat-cured to harden the film.
Patent CA-1331734-C (CA)
Title: Gas barrier structure for pneumatic articles
Inventor: LIN KUANG F
IPC: B60C1/00
Filed: 1989-03-28
Granted: 1994-08-30
Abstract: IMPROVED GAS BARRIER STRUCTURE FOR PNEUMATIC ARTICLES               Abstract of Disclosure A gas barrier structure for pneumatic articles, comprising a gas barrier film having low gas permeability, in which the gas barrier film is laminated between and bonded to two vulcanizable elastomeric surface layers and is a non-elastomeric polymeric layer that has an air permeability of no more than 0.05 x 10-10cc-cm/cm2-cmHg-sec at 23°C, and the said structure incorporated into a tubeless pneumatic vehicle tire as the tire innerliner, are disclosed.
Patent CA-1336196-C (CA)
Title: Process for the preparation of n-cyanoethanimidic acid esters
Inventor: WEISS STEFAN
IPC: C07B61/00
Filed: 1989-04-05
Granted: 1995-07-04
Abstract: A process  is  described  for  the  preparation  of  N-cyanoethanimidic acid esters by reacting orthoacetic acid esters with cyanamide, the reaction being carried out in alcoholic solution in the presence of an acid catalyst.   N-cyanoethanimidic  acid  esters  can  be prepared in this manner in a high yield and state of purity with a low technical outlay.
Patent CA-1321456-C (CA)
Title: Method for making a coated synthetic resin web
Inventor: VETTER HEINZ
IPC: B29C48/00
Filed: 1989-05-18
Granted: 1993-08-24
Abstract: ABSTRACT OF THE DISCLOSURE     An extruded web of synthetic resin having a scratch resistant coating thereon is made by depositing a material adapted to form a scratch resistant coating onto the return run of at least one of the the endless belts of a dual belt continuous casting machine, the coating being transferred to the surface of the web as the extruded web is polished and cooled in the casting machine.