baber/WOPTO huggingface dataset:
Patent CA-1298695-C (CA)
Inventor: SOKOLOWSKI ROBERT C
IPC: D04H1/42
Filed: 1986-01-09
Granted: 1992-04-14
Abstract: ABSTRACT OF THE DISCLOSURE       An elasticized non-woven fiber material is made by combining one or more textile fibers with one or more elas-ticizeable fibers and bonding the combined fibers together. The resultant web of bonded non-woven fibers is then heat-treated to heat-shrink the elasticizeable fiber and recover its elasticity thereby shrinking the fibers and the web of material.  An elasticized non-woven fabric made by the de-scribed method is also provided.
Patent CA-1290086-C (CA)
Title: Curable casting resins
Inventor: ITTMANN GUENTHER
IPC: C08F20/12
Filed: 1986-09-05
Granted: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE     Curable casting resins comprising a liquid or liquefiable curable organic polymer precursor, a high content of finely divided inorganic filler, and a polymerizable organosilicon component as an adhesion promoter, the liquid phase formed from the organic components containing lecithin in amounts from 0,01 to 5 percent by weight of the casting resin.
Patent CA-1291796-C (CA)
Title: Hand-held self-contained electronic tonometer
Inventor: FELDON STEVEN
IPC: A61B3/16
Filed: 1986-11-03
Granted: 1991-11-05
Abstract: S P E C I F I C A T I O N     HAND-HELD SELF-CONTAINED ELECTRONIC TONOMETER                   ABSTRACT OF THE DISCLOSURE     Disclosed is a battery powered, hand-held self-contained electronic tonometer with a digital readout for displaying pressure in millimeters of mercury.  The tonometer includes a transducer which is a solid state pressure sensitive element and which produces a voltage proportional to intraocular pressure.          An electrical waveform is produced by gently bringing the transducer in contact with the cornea.  The waveform is converted to a digital signal and processed by a single chip micro-processor.  The baseline of a reference signal is nulled by equalizing the charges on two capacitors on the inputs of two differential amplifiers.  Equalizing the differential inputs of the two amplifier stages results in a gain of zero and removes any carrier signal.  Microprocessor software detects the baseline condition established by equalizing the differential inputs.  The microprocessor then looks for a series of valid measurements and calculates the average intraocular pressure along with an estimate of reliability.  This average value and the reliability indicator are displayed on a liquid crystal display.
Patent CA-1303155-C (CA)
Title: Electromagnetic shield for electromagnetic apparatus
Inventor: SHIKANO YOSHIROU
IPC: H01F27/36
Filed: 1987-01-16
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE           An electromagnetic shield for electromagnetic apparatus comprises a plurality of shield coils wound intermittently on a looped magnetic core.  The terminals of the shield coils having the same polarity are connected together to form current paths which prevent external fluxes ?1, ?2 from entering the core.
Patent CA-1282896-C (CA)
Title: Room-temperature-curing silicone sealants
Inventor: ALLEN PHILLIP R
IPC: C08K3/36
Filed: 1987-01-22
Granted: 1991-04-09
Abstract: IMPROVED ROOM-TEMPERATURE CURING SILICONE SEALANTS                Abstract This invention is a method of improving the shelf life and oil resistance of silicone elastomeric sealants which are based upon hydroxyl endblocked polydiorgano-siloxanes, alkyltrialkoxysilane, and titanate catalyst.  The improvement is accomplished by the addition of from 10 to 100 parts by weight of silethylene ended polymer of the formula   where each R is an organic radical selected from methyl, ethyl, propyl, phenyl, and trifluoropropyl r each R" is methyl or ethyl, Z is an ethylene radical or combination of ethylene radicals and siloxane radicals, a is 0 or 1, and x is of a value such that the polymer has a viscosity of from 0.05 to 10 Pa.s at 25°C.
Patent CA-1300635-C (CA)
Title: N-substituted arylcyclobutenyl-unsaturated cyclic imides
Inventor: KIRCHHOFF ROBERT A
IPC: C07D403/02
Filed: 1987-02-27
Granted: 1992-05-12
Abstract: ABSTRACT            The invention is a compound which comprises an un-saturated cyclic imide moiety, such as maleimide, and an aryl cyclobutene moiety, such as a benzocyclobutenyl moiety, wherein the cyclobutene moiety is fused to the aryl radical, and wherein the imide nitrogen is connected to the aryl radical by a direct bond or a bridging member.  Such compounds may have the structural formula   Another aspect of this invention is a polyimide polymeric composi-tion which results from the polymerization of the above-described compounds.
Patent CA-1284297-C (CA)
Title: Stereo enhancement system
Inventor: KLAYMAN ARNOLD I
IPC: H03G5/02
Filed: 1987-03-25
Granted: 1991-05-21
Abstract: STEREO ENHANCEMENT SYSTEM                      ABSTRACT OF THE DISCLOSURE      A stereo enhancement system (300) is disclosed which provides an enhanced wider stereo image and a wider listening area, and further provides perspective correction for achieving correct stereo sound perspective with speakers at different locations and with headphones. The stereo enhance-ment system includes a stereo image enhancement system (100, 10, 110) which includes circuitry (11, 13, 111, 113) for generating sum and difference signals based on left and right stereo signals, circuitry (17, 18, 19, 22, 30, 115, 125, 129, 40) for selectively altering the relative amplitudes of the difference signal components, circuitry (17, 21, 30, 117, 127, 40) for selectively altering the relative amplitudes of the sum signal components, and circuitry (23, 25, 27, 119, 121, 123) for combining the processed sum and difference signals with the original left and right stereo signals to produce enhanced left and right stereo signals. The enhancement system further includes a perspective correction system (200, 210) which is responsive to the enhanced left and right signals provided by the stereo image enhancement system or to left and right stereo signals of an audio system. The perspective correction system includes circuitry (211, 213) for generating sum and difference signals from the left and right stereo signals, equalization circuitry (215, 217, 221, 223) for providing fixed equalization for the sum and difference signals to compensate for the variation with direction of the frequency response of the human ear, and mixing circuitry (225) for com-bining the equalized sum and difference signals to produce left and right signals.
Patent CA-1294568-C (CA)
Title: Shrinkable pipe wrapping
Inventor: WINGFIELD KEITH A
IPC: F16L58/16
Filed: 1987-05-12
Granted: 1992-01-21
Abstract: ABSTRACT           A protective wrapping for application to an elongate article such as a pipe comprising a substrate and a membrane of a self-adhesive compound to contact and adhere to the pipe, the wrapping being locatable around the pipe so that it is locked and prevented against longitudinal shrinkage, the substrate being a plastic sheet material which has been longitudinally extended such that when applied and locked it will at ambient temperature tend to contract to form a tightly applied protection around the pipe.
Patent CA-1298534-C (CA)
Title: Arrangement for automatic displacement of a cutter set of a meat comminuting machine
Inventor: SCHNELL KARL
IPC: B02C18/36
Filed: 1987-06-18
Granted: 1992-04-07
Abstract: Abstract of the Disclosure.     A meat comminuting machine has a cutting unit which includes at least one stationary perforated plate and a mobile associated cutter head arranged on a driving shaft, which is driven by a driving motor, and a device for an axial displa-cement of the driving shaft which supports the cutter head in dependence of the loading of the driving motor.
Patent CA-1276526-C (CA)
Title: Shut-off device for a sprinkler assembly
Inventor: CAPASSO VINCENT J
IPC: A62C37/10
Filed: 1987-07-03
Granted: 1990-11-20
Abstract: FOR:  A SHUT-OFF DEVICE FOR A SPRINKLER ASSEMBLY    ABSTRACT    A device for terminating the flow of fluid from an overhead sprinkler equipped with a cut-off valve.          The device provides a cut-off means for obturating fluid flow in sprinkler heads equipped with both a circular baffle and a baffle having a sidewall member for directing water into a limited area.  When impressed onto the sprinkler head a recessed segment returns the cut-off valve to its original shut-down position and a biased locking means allows the user to secure the device against unintended discharge.
Patent CA-1335950-C (CA)
Title: Method of forming semiconducting amorphous silicon films from the thermal decomposition of dihalosilanes
Inventor: SHARP KENNETH G
IPC: H01L31/04
Filed: 1987-09-04
Granted: 1995-06-20
Abstract: The invention relates to the chemical vapor deposition of dihalogenated silanes to form stable, abrasion resistant, photoconductive, dopable semiconductor amorphous films on substrates.  Additional hydrogen and plasma discharge conditions are not necessary to practice the invention.
Patent CA-1303050-C (CA)
Title: Salt of diclofenac with a cyclic organic base and pharmaceutical compositions which contain it
Inventor: ZIGGIOTTI ANTONIO
IPC: A61K31/445
Filed: 1987-11-12
Granted: 1992-06-09
Abstract: ABSTRACT          Salts of diclofenac (2-[2,6-dichlorophenyl)-amino]-benzeneacetic acid) with a cyclic organic base having the general formula (I)                (I) in which X is a group of the formula (CH2)m, in which  m is 0, 1 or 2 or X is oxygen, sulfur or NR, R being an alkyl group C2-C4, and  n  is  2  or  3,  are  useful  in  antiinflammatory pharmaceutical  compositions.    Such  salts  are  prepared  by dissolving diclofenac in a suitable organic solvent, adding said cyclic organic base,  reacting the two components together, removing the solvent and crystallizing the product obtained.
Patent CA-1293142-C (CA)
Inventor: KROSS MANFRED
IPC: B25B23/04
Filed: 1988-05-19
Granted: 1991-12-17
Abstract: ABSTRACT OF THE DISCLOSURE A SUPPLEMENTARY DEVICE FOR INSERTING SCREWS BY MEANS OF A                  POWER-DRIVEN SCREW DRIVER         A supplementary device for driving screws by a power-driven screw driver having a driver blade or tool, the device comprising variable length holding means extending parallel to the driver blade and having a lateral extension or base plate.  A magazine disc is releasably attached to and rotatably supported by the base plate, the magazine disc being adapted to receive a plurality of screws arranged on a circular arc.  The axis of the driver blade or tool substantially extends through a point of the circular arc and the screws are supported on the disc such that they can be removed from the disc by axial pressure of the driver blade.    A  preferred  embodiment  provides  a  screw  supporting magazine disc which is  of  flexible material such as plastic, cardboard or thick paper and an index disc is rotatably supported on the base plate, which index disc has apertures for alignment with the screws supported by the magazine disc.  The index disc is adapted to support the magazine disc and index the location of the screws relative to the driver blade or tool.
Patent CA-1291835-C (CA)
Title: Ring trip circuit for subscriber telephone
Inventor: TOJO TOSHIRO
IPC: H04M19/02
Filed: 1988-06-17
Granted: 1991-11-05
Abstract: RING TRIP CIRCUIT FOR SUBSCRIBER TELEPHONES             ABSTRACT OF THE DISCLOSURE Disclosed is an improved ring trip circuit for a subscriber telephone, for detecting an on-hook state or an off-hook state of the telephone.  The ring trip circuit can be formed in a small size and can be formed by an LSI.  The ring trip circuit includes a voltage detecting circuit, for detecting a voltage difference between both ends of a ringer sending resistor and having a circuit converting the voltage difference to a current difference, the voltage difference varying in response to an on-hook state or an off-hook state of the telephone, and a state detecting circuit for detecting the on-hook state or the off-hook state in response to a value of the voltage difference.  The voltage detecting circuit is formed by a plurality of current mirror circuits, each of which includes at least two transistors.  The state detecting circuit includes a comparator circuit formed by a plurality of transistors.
Patent CA-1289501-C (CA)
Title: Method and apparatus for forming belts to pipe conveyor
Inventor: STEINKOTTER FRANZ-ALBERT
IPC: B65G15/08
Filed: 1988-07-22
Granted: 1991-09-24
Abstract: ABSTRACT. The invention proposes a method and an apparatus for drawing a conveyor-belt, shared into a tube, into and through support-roller stations, the said belts being rolled to a diameter which is smaller than the eventual operating diameter and being held in this configuration by an accompanying clamping means such as a net-stocking.  The desired diameter of the belt is obtained by means of a reducing element in the form of a nozzle.
Patent CA-1319549-C (CA)
Title: Method of making hydrogel contact lenses having aspheric front surfaces
Inventor: EVANS CYRIL H
IPC: B29D11/00
Filed: 1988-08-16
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE     A contact lens of soft,  pliable ophthalmic plastic material and a method of making same.  The lens, when  in  its  dehydrated  state,  has  a spherical back surface which in its hydrated state conforms to the corneal curvature of the wearer's eye and, when in its dehydrated state, having an aspheric front surface of polar coordinate form, having an asphericity which is a function (n)f [sin(a)] where (a) is the polar angle and (n) is the offset factor of a controlling circular surface.  The method of construction consists of rotat-ing a lens blank about a fixed axis of rotation while swinging a cutting tool along a path centered on the axis of rotation between a centered position in which the cutting tool engages a vertex point of the lens blank and a position angularly swung with respect to the centered position in which the cutting tool engages the peripheral limit of the contact lens being made.          The cutting tool and lens blank are progressively re-treated relative to each other as the cutting tool is swung from the centered position toward the peripheral position.
Patent CA-1328644-C (CA)
Inventor: SIGMUND JERRY A
IPC: A47K10/38
Filed: 1988-09-01
Granted: 1994-04-19
Abstract: ABSTRACT       A wall mounted toilet tissue dispenser for two very large rolls of toilet tissue. The rolls are rotatably supported side by side in the dispenser with the axis of each roll perpendicular to the mounting wall of the dispenser. Paper is dispensed through a dispensing opening located at the bottom of the dispenser. Tail guide members are provided in the dispenser for limiting the location in the dispensing opening of the tail of each roll of tissue and for guaranteeing that the paper is at an angle to the vertical when the paper is severed so that after the paper is cut the tail will project below the dispensing opening when the paper falls to a vertical position.
Patent CA-1293338-C (CA)
Title: Variable bandwidth control system
Inventor: SHAIO JACK
IPC: H04J3/17
Filed: 1988-09-08
Granted: 1991-12-17
Abstract: VARIABLE BANDWIDTH CONTROL SYSTEM            Abstract An NpR variable bandwidth control system comprises a class of systems specifically designed to control the access to a T1 link by traffic types that require differ-ent fractions of the transmission facilities simulta-neously.  These systems can be incorporated into the software that is used to control DCS based T1 networks for special services.  Essentially, wideband messages such as video signals are transmitted one at a time, whereas low bit rate data signals such as voice are transmitted in parallel.  Such a form of transmission makes economical sense in the transmitting of such signals.  A proportion p is applied to one of the groups so that all data is equitably handled.
Patent CA-1332980-C (CA)
Inventor: COLE JOHN B
IPC: G01F1/7086
Filed: 1988-09-14
Granted: 1994-11-08
Abstract: Flow meter which is used to measure the volume flow of fluid in a pipe. A light source (e.g. a semiconductor diode laser) illuminates scattering particles suspended in the fluid. A lens images the scattered light onto a multi-element photodetector. A digital processor interfaced to the detector calculates a time-delayed spatial correlation function, and hence the magnitude and direction of the flow velocity at one or more points in the pipe.
Patent CA-1307112-C (CA)
Title: Light projecting toy musical box
Inventor: OHASHI MICHIYA
IPC: G10F1/06
Filed: 1988-10-07
Granted: 1992-09-08
Abstract: 78.1795 ABSTRACT OF THE DISCLOSURE      A light projecting toy musical box projects a light pattern which is synchronized with musical sound generated by an acoustic mechanism.  The projected light patterns are formed by providing a lamp within a base and rotatably mounting a dome over the lamp and substantially on top of the base.          The dome is made out of translucent material which is patterned with a semi-opaque coating so as to form light patterns on the dome itself and project the light patterns on adjacent ceilings and/or walls of a room.
Patent CA-1303614-C (CA)
Title: Process for preparing bis(3,5-dioxopiperazinyl) alkanes or alkenes
Inventor: TU CHI-YUN JOHNNY
IPC: C07D241/08
Filed: 1988-12-09
Granted: 1992-06-16
Abstract: Abstract A process for preparing a compound of the formula (I)                      (I) wherein R1 and R2 are individually selected from the group consisting of hydrogen and methyl or R1 and R2 together represent an ethylene bridge group comprising: reacting a diamine of the formula (II) H2N-CHR1-CHR2-NH2          (II) where R1 and R2 are defined as above with formaldehyde and an alkaline metal cyanide at a pH in the range of about 0 to 2 to produce a tetranitrlle of the formula (III):             (NCCH2)2N-CHR1-CHR2-N(CH2CN)2         (III) hydrating said tetranitrile to yield an acid addition salt of a tetraamide of the formula (IV):            (H2NOCCH2)2N-CHR1-CHR2-N(CH2CONH2)2 .2HX  (IV) where R1 and R2 are defined as in formula (I) and X is an acid anion such as fluoride, chloride, bromide or sulfate but preferably chloride; and reacting said acid addition salt of said tetraamide in a cyclization reaction to yield said compound of the formula (I).
Patent CA-1300349-C (CA)
Title: Process for separating organic constituents from waste gases of the production of aromatic intermediates
Inventor: HOEROLDT ERNST
IPC: B01D53/34
Filed: 1988-12-29
Granted: 1992-05-12
Abstract: Abstract:       A process for the separation of undesired organic ingredients from waste gases which are formed in the preparation of aromatic intermediates which comprises washing the waste gases with a washing liquid comprising a) paraffinic hydrocarbons having from 10 to 20 carbon atoms or b) diisopropylnaphthalene or a mixture of isomers thereof having the sum formula C16H20, an average molecular weight in the range of from 210 to 215, a boiling range in the range of from 290 to 300°C (according to DIN 51 761) and a flash point above 130°C (according to DIN 51 758) at a temperature in the range of from 0 to 50°C to remove the said undesired organic ingredients.
Patent CA-1314855-C (CA)
Title: High-symbol density printer cartridge
Inventor: MILLISER CHARLES E
IPC: B41J32/02
Filed: 1989-02-07
Granted: 1993-03-23
Abstract: HIGH-SYMBOL DENSITY PRINTER CARTRIDGE               ABSTRACT OF THE DISCLOSURE    A shuttle matrix printer cartridge has a housing for storing the ribbon, an exit arm, an entrance arm spaced from the exit arm and a drive mechanism for removing ribbon from the storage chamber through the exit arm into position for printing between a printhead and a substrate and reentry into the cartridge through the entrance arm.  The entrance arm is flexible in the plane of the cartridge toward and away from the exit arm to facilitate changes in ribbon drag produced during high dot density printing.  The cartridge has three spacer legs along its underside for supporting the cartridge on the printer platform in use.  Additionally, a post engages a recess in the exit arm to maintain the latter arm rigid during use, while such post, in conjunction with a drive shaft carried by the printer and received in a cartridge drive wheel, positions the cartridge in the printer against lateral movement.  A shield is disposed between the drive gears and nip rollers in the drive mechanism to prevent ensnarlment of the ribbon in the drive gears.
Patent CA-1314356-C (CA)
Title: Silicone surfactants containing cyclic siloxane pendants
Inventor: BUDNIK RICHARD A
IPC: C09K23/54
Filed: 1989-03-07
Granted: 1993-03-09
Abstract: SILICONE SURFACTANTS CONTAINING CYCLIC SILOXANE PENDANTS            ABSTRACT OF THE DISCLOSURE        Novel siloxane-polyether polymers are provided containing cyclic siloxanes which are useful in silicone surfactants for foam polyurethane foam applications.  The novel polymers are prepared by reacting a polyhydridosiloxane polymer with a cyclic polysiloxane containing a vinyl group and with an allyl started polyoxyalkylene polymer in the presence of a platinum-containing catalyst.  The resulting polymeric products are highly potent and impart flat breathability profiles to foams when used as surfactants in their preparation.
Patent CA-1313274-C (CA)
Title: Control of pipelined operation in a microcomputer system employing dynamic bus sizing with 80386 processor and 82385 cache controller
Inventor: BEGUN RALPH M
IPC: G06F12/08
Filed: 1989-04-26
Granted: 1993-01-26
Abstract: CONTROL OF PIPELINED OPERATION IN A MICROCOMPUTER SYSTEM EMPLOYING DYNAMIC BUS SIZING     ABSTRACT            Any incompatibility between pipelined operations (such as is available in the 80386) and dynamic bus sizing (allowing the processor to operate with devices of 8-, 16- and 32-bit sizes) is accommodated by use of an address decoder and ensuring that device addresses for cacheable devices are in a first predetermined range and any device addresses for non-cacheable devices are not in that predetermined range.  Since by definition cacheable devices are 32-bit devices, pipelined operation is allowed only in the address decoder indicates the access is to a cacheable device.  In that event, a next address signal is provided to the 80386.  This allows the 80386 to proceed to a following cycle prior to completion of the previous cycle.  For accesses which are to devices whose address indicate they are non-cacheable, a next address signal is withheld until the cycle is completed, i.e. without pipelining.  The invention further provides for proper interface between a DMA mechanism (driven by a first clock) and a CPU local bus subsystem (driven by an entirely different clock).  Data provided by the DMA mechanism is latched into an interface between the CPU local bus and the system bus, and a DMA cycle completed. Only after completion of the DMA cycle is detected, is the cycle on the CPU local bus allowed to complete.  In this fashion, the CPU can go on to a following operation and be assured that the DMA mechanism is no longer driving the system bus.
Patent CA-1332244-C (CA)
Inventor: COLAS ANDRE R L
IPC: C07F7/08
Filed: 1989-08-02
Granted: 1994-10-04
Abstract: Abstract of the Disclosure Surface  active  organosilicon  compounds  which  have  an improved stability at a pH above 9 or bolow 4, have the general formula   wherein each R independently represents an alkyl or aryl group, each R' represents an alkylene group preferably separa-ting neighbouring silicon atoms by up to 3 carbon atoms, each R" independently denotes R or, only if a is 0, the group R3SiR'-, Z represents a hydrophilic sulphur, nitrogen or pbosphorus containing substituent or a carboxy-functional group or a salt thereof, and a has the value 0, 1 or 2.