baber/WOPTO huggingface dataset:
Patent CA-1279492-C (CA)
Title: Liquid-gas contactor for non-azeotropic mixture refrigerant
Inventor: FUJIWARA KATSUHIKO
IPC: F25B33/00
Filed: 1987-10-28
Granted: 1991-01-29
Abstract: ABSTRACT OF THE DISCLOSURE          A gas-liquid contactor for varying the mixing ratio of a non-azeotropic refrigerant circulated through a refrigeration cycle, wherein each of pieces of a filler filled in a filler bed of the gas-liquid contactor is composed of a substantially cylindrical member with a peripheral surface having convexities and concavities.          This form of the filler provides a voidage in the bed of the filler suitable for upward flow of the gaseous phase of the refrigerant through the filler bed and, at the same time, provides a large area for the contact between the gaseous phase and the liquid phase of the refrigerant by virtue of the presence of many convexities and concavities.  In a preferred form of the invention, the liquid returning pipe has a lower end which is opened downward into the container of the gas-liquid contactor at a position substantially on the axis of the container, so that the returned liquid refrigerant can be uniformly distributed over the entire region of the filler bed so as to enhance exchange of heat between the gaseous phase and the liquid phase of the refrigerant.
Patent CA-1296430-C (CA)
Title: Encoding system capable of accomplishing a high efficiency by anterior and/or posterior processing to quantization
Inventor: KANEKO MASAHIDE
IPC: H04N7/26
Filed: 1987-11-09
Granted: 1992-02-25
Abstract: Abstract of the Disclosure:         In an encoding system responsive to a sequence of coefficient signals which results from a predetermined linear transform and which is divided into a sequence of blocks, anterior processing is carried out prior to quantization about the coefficient signals in each block to determine a significant area of the coefficient signals by comparing each level of the coefficient signals with a threshold level.  Only the coefficient signals within the significant area are judged to be valid and produced as a sequence of significant coefficient signals from a classifying circuit (20) to be quantized by a quantizer (15) into a sequence of quantized signals.  The quantized signal sequence is subjected to posterior processing to produce a sequence of encoded signals.  The significant area may be decided by the use of a selected one of zone detection, zigzag scanning, and adaptive scanning.  In the posterior processing, the quantized signals may be encoded into the encoded signals by the use of a plurality of code sets or tables.
Patent CA-1330269-C (CA)
Title: Process for the formation of an image
Inventor: BANKS CHRISTOPHER P
IPC: G03F7/029
Filed: 1987-12-15
Granted: 1994-06-21
Abstract: ABSTRACT OF THE DISCLOSURE             PROCESS FOR THE FORMATION OF AN IMAGE     A process for the formation of an image comprises (i) applying to a substrate a layer of a liquid composition comprising (A) a residue which is cationically polymerisable or polymerisable by means of free radicals, (B) a radiation-activated polymerisation initiator for (A) and (C) a radiation-solubilisable residue, (ii) subjecting the composition to radiation having a wavelength at which (B) is activated but at which (C) is not substantially activated, optionally followed by heating, thereby polymerising (A) such that the layer of liquid composition is solidified, (iii) subjecting the solidified layer in a predetermined pattern to radiation having a wavelength which is different from that of the radiation used in stage (ii) and at which the residue (C) is activated, such that the solidified layer is rendered more soluble in a developer in exposed areas than in unexposed areas, and (iv) removing the exposed areas by treatment with a developer.  The process is useful in the production of printing plates and printed circuits.
Patent CA-1329533-C (CA)
Inventor: FOSTER FRANCIS G
IPC: C11D3/22
Filed: 1988-01-21
Granted: 1994-05-17
Abstract: ABSTRACT      A fabric treatment compositions comprises at least 10% soap as a fabric softener, especially an oleate/coconut soap, optionally a non-soap detergent active and up to 3% of a nonionic substituted cellulose ether having an HLB of 3.1 to 3.8 and a gel point of less than 58°C.  A suitable such material is an ethyl hydroxyethyl substituted cellulose ether.  Other fabric softening materials may also be present.  The cellulose ether derivative improves the softening performance of such compositions.
Patent CA-1336219-C (CA)
Title: Aromatic polymer
Inventor: NEWTON ALAN B
IPC: C08G75/20
Filed: 1988-02-10
Granted: 1995-07-04
Abstract: A crystalline polyarylether capable of being shaped into fibres or films or moulded or used as a matrix in composites, contains repeating units Ph1n, Ar1 and Ar2 connected by ether linkages, wherein Ph' is 1, 3 or 1, 4- phenylene optionally substituted with 0 to 4 methyl or chloro groups.   n is an integer from 1 to 4 Ar1 is Ph [CO [Ph' CO]x Ph] y wherein x = 0 or 1 y = 1 or 2 Ph is 1,4-phenylene optionally substituted with 0 to 4 methyl or chloro groups, and Ar2 is [Phn SO2 ]v Ph'w wherein u, v and w are integers from 1 to 4; said units being in the relative molar proportions:  Ph'n   40 to 60% Ar1       92 to 50% of the total of Ar1 and Ar2. and    Ar2        8 to 48% of the total.
Patent CA-1288826-C (CA)
Title: Circuit for cancelling whole or part of a waveform using nonrecursive and recursive filters
Inventor: KOIKE SHIN ICHI
IPC: H04B3/23
Filed: 1988-03-01
Granted: 1991-09-10
Abstract: (048A/M3) "Circuit for Cancelling Whole or Part of a Waveform Using Nonrecursive and Recursive Filters"             ABSTRACT OF THE DISCLOSURE       The whole or part of a waveform is cancelled by a circuit comprising a nonrecursive filter and a recursive filter.  The nonrecursive filter has a plurality of first multipliers having first tap weights for modifying symbols successively shifted along a shift register.  The recursive filter is connected in a series circuit to the shift register and has a second tap weight for recursively modifying the output of the shift register. The recursively modified symbol is modified by a second multiplier having a third tap weight and combined in an adder with the symbols modified by the first tap weights to produce a replica of an undesired waveform.  The replica is destructively combined in a subtractor with an incoming symbol having an undesired waveform.  The output of subtractor is utilized to derive the tap weights to adaptively control the inputs to the adder.
Patent CA-1282132-C (CA)
Inventor: CLASSON EDWIN O
IPC: H01R12/72
Filed: 1988-03-16
Granted: 1991-03-26
Abstract: Abstract of the Disclosure An edge connector for electrically connecting and mechanically securing a daughter board to a mother board.          The edge connector includes an insulator body with a pair of stalks spaced apart so as to accomodate a daughter board therebetween.  The insulator body is provided with a number of contacts, each of which is housed inside a contact slot inside the insulator body.  Each contact has a surface pressure contact area for electrically connecting to the mother board to which the edge connector is attached.  Each contact also has a contact area that extends into the daughter board slot.  The contacts are arranged so that in each pair of adjacent contacts one contact has an upper contact area and the other a lower contact area.  The upper contact areas are located above the lower contact areas.  This makes it poossible to use a daughter board with two rows of offset contact pads with this edge connector.
Patent CA-1339978-C (CA)
Inventor: NAGATA MASAYUKI
IPC: H01L39/14
Filed: 1988-03-23
Granted: 1998-08-04
Abstract: A ceramic oxide superconductive composite material comprises a ceramic oxide superconductor and a non-super-conductive material comprising at least one element that does not react with any of the elements of the superconductor. The composite material has improved super-conductive properties  such as a higher critical temperature and a larger critical current density.
Patent CA-1322143-C (CA)
Title: Canopy assembly
Inventor: HILL ROGER W
IPC: E04F10/00
Filed: 1988-03-29
Granted: 1993-09-14
Abstract: CANOPY ASSEMBLY                         Abstract A canopy assembly has an openable panel in a top or bottom  wall  to  allow  access  to  the  interior  without disturbing the front  face member.   This may be required e.g.  to maintain light fittings or to tension a flexible sheet of the front face member.   There may be a pair of upright rear girders and an assembly at the top and/or the bottom comprising a rear transverse member that bridges the girders and has a hinge channel at the front.   Brackets project  forwardly from  the  girders  and  carry  a  front transverse member.  A lid is hingedly engaged in the hinge channel and extends to the front transverse member, which also supports the front face member, a displaceable screen, and a support for light fittings.
Patent CA-1294516-C (CA)
Inventor: YARNELL JAMES A
IPC: F16H63/30
Filed: 1988-05-09
Granted: 1992-01-21
Abstract: ABSTRACT OF THE DISCLOSURE    A shifter housing assembly for a multiple speed power transmission which includes a die cast shifter housing, a plurality of axially shiftable cylindrical shifter rods slidably contained in circumferentially open, part-cylindrical notches in the housing, a poppet type interlock mechanism that is contained in a circumferentially open, interrupted notch which extends through the circumferentially open notches to engage the shifter rods and limit the axial shifting of the shifter rods, and a stamped steel retainer plate which is removably attached to the housing to retain the shifter rods in the part-cylindrical notches and the interlock mechanism in the interrupted notch.  The retainer plate has a plurality of part-cylindrical notch portions which are aligned with the part-cylindrical notches in the housing to form generally cylindrical passages for the shifter rods.
Patent CA-1299677-C (CA)
Title: Resistance welding of aluminium
Inventor: PUDDLE MARK W
IPC: B23K11/11
Filed: 1988-05-12
Granted: 1992-04-28
Abstract: ABSTRACT      The invention concerns a method Or forming a Joint between aluminium workpieces.  These carry an artifically applied e.g. chromate or anodic oxide coating on their surface.  A curable adhesive containing up to 40% by weight Or particulate filler having a maximum particle size of 300 microns is provided between the workpieces to be Joined. resistance welding is performed using a welding electrode whose tip has a surface with an average roughness depth of at least 10 microns.  This increases electrode life and makes it possible to use lower welding currents than previously recommended.
Patent CA-1286008-C (CA)
Title: Conductive lead arrangement
Inventor: SEIDLER JACK
IPC: H01R12/57
Filed: 1988-08-18
Granted: 1991-07-09
Abstract: ABSTRACT         A conductive lead for connection to a first conductive area of a device having two opposed surfaces with a conductive area  comprises  an  elongated  conductive  body  formed  from  a substantially  flat  strip  of  a  resilient  material.    The conductive body has a pair of opposite arms adapted to engage the  opposed  device  surfaces  resiliently.   A non-conductive element is held by one arm and is adapted to engage the other surface  of the device to insulate the  lead  from the other surface.  The conductive area of the other surface is insulated by the lead and the non-conductive element from the conductive are of the first surface.
Patent CA-1317746-C (CA)
Title: Process for manufacturing bimetallic coins and metals
Inventor: LASSET MICHEL
IPC: A44C21/00
Filed: 1988-10-11
Granted: 1993-05-18
Abstract: ABSTRACT      This invention relates to a process for manufacturing bimetallic coins or medals by connection by creeping of a ring with an insert, wherein: - an insert is used, comprising a discontinuous groove on its periphery; - said insert is positioned in said ring; and - crimping of the ring on the insert and mintage of the piece are effected in one single operation by using a die whose action provokes creeping of the metal of the ring towards the insert and in the discontinuous groove made on the periphery thereof and stamping of the assembly, i.e. the formation of the surface of the coin or the medal.
Patent CA-1325974-C (CA)
Title: Device and method for depletion of the leukocyte content of blood and blood components
Inventor: PALL DAVID B
IPC: B01D39/00
Filed: 1988-10-19
Granted: 1994-01-11
Abstract: ABSTRACT:       Devices for the depletion of leukocytes in blood products, preferably comprising an upstream porous element including means for removal of gels, at least one intermediate porous element including means for removal of microaggregates, and a downstream element including means for removal of leukocytes by both adsorption and filtration, preferably with at least one of the elements having been modified to a CWST in excess of 53 dynes/cm.
Patent CA-1340363-C (CA)
Inventor: THOMAS KENNETH A
IPC: A61P43/00
Filed: 1988-10-21
Granted: 1999-02-02
Abstract: Novel genes coding for mutant bovine and human aFGF are constructed.  The unique genes are derived from genes encoding recombinant bovine and human aFGF by specific point mutations.  Each gene construct is inserted into an expression vector which is used to transform an appropriate host.  The transformed host cells produce unique mutant recombinant aFGF, human or bovine, which is purified and has enhanced or improved biological activity in the absence of heparin compared to the unmutated forms.
Patent CA-1293533-C (CA)
Title: Paging device
Inventor: FERNANDEZ EMILIO A
IPC: H04W88/02
Filed: 1988-10-27
Granted: 1991-12-24
Abstract: ABSTRACT OF THE DISCLOSURE    A paging device includes a radio receiver (10-20) and decoding circuitry (22) for receiving an encoded transmitted signal and operates an indicator (26) to alert a user that a call has been received.  A signal strength detector (30) monitors the strength of a carrier for a transmitted signal and provides a voltage level proportional to the carrier signal strength.  A switch (33), when enabled, connects the voltage level from the detector (30) to a voltage controlled oscillator (32) which provides an output having a frequency proportional to the monitored strength of the carrier signal.  The output of the variable frequency oscillator (32) is connected to the indicator (26) to provide the user with an indication of whether transmissions may be reliably received.  The variable frequency oscillator may be replaced by a threshold device (35) to simplify the paging device, or the basic system may be provided with an averaging device (27) so that the user may select between instantaneous and average values of the strength of the monitored carrier signal.  In an alternative embodiment, the paging device may be implemented using a microprocessor (23) controlled by a program stored in ROM (25) as the decoder.  In this implementation, the microprocessor may be programmed to perform additional functions including computing the error rate of decoded messages, and if the error count exceeds a predetermined threshold, alerting the user of an unreliable radio link.  A further refinement allows the user to monitor the error rate.
Patent CA-1316672-C (CA)
Title: Method for making fiber-reinforced ceramic matrix composite
Inventor: SHERWOOD DIANA L
IPC: C04B35/80
Filed: 1988-10-27
Granted: 1993-04-27
Abstract: Abstract of the Disclosure Fiber-reinforced ceramic matrix composites are fabri-cated by a process wherein a fiber reinforcement material, preferably in the form of a fiber array or ribbon of parallel-aligned monofilament fibers, is combined with multiple sheets of ceramic matrix material, preferably in the form of thin flexible ceramic tape. A preform consisting of a layered assembly of the fibers and ceramic matrix sheet is consolidated with heat and pressure into an integral, substantially void-free ceramic matrix composite wherein the matrix has fully penetrated and infiltrated the fiber array and wherein the fibers are disposed in precise alignment and position, following the fiber alignment in the preform.
Patent CA-1318799-C (CA)
Title: Multifocals using phase shifting steps
Inventor: COHEN ALLEN L
IPC: G02B3/08
Filed: 1988-11-10
Granted: 1993-06-08
Abstract: MULTIFOCALS USING PHASE SHIFTING STEPS                                 ABSTRACT   This invention relates to a multifocal optical lens configuration that relies on the phenomenon of simultaneous vision whereby the eye is presented with two clear images at once. In particular this invention allows a lens to be made with arbitrary relative brightnesses between the multiple images.
Patent CA-1314418-C (CA)
Title: Facilities for placing sleeve label on objects such as cans
Inventor: VANDEVOORDE JEAN-CLAUDE
IPC: B29C63/18
Filed: 1988-12-09
Granted: 1993-03-16
Abstract: Installation for applying labelling sleeves to articles such as cans (3), which installation is characterized in that it comprises a rectilinear transporter (2) for the cans in which is inserted a lifting table (4) capable, each time it is actuated, of bringing a can into the raised position for the application of a sleeve by means of stretching pincers (7), at least one barrier being provided below the lifting table to maintain the aligned cans (3), arranged on the transporter, in position while the table (4) is in the raised position and, when the table is lowered, to allow the can provided with a sleeve to be reintroduced into the rectilinear alignment of the cans.
Patent CA-1315923-C (CA)
Title: Non-contacting method of cleaning surfaces with a planar gas bearing
Inventor: DEAN ROBERT L
IPC: C23G5/00
Filed: 1989-01-11
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE    A non-contact method of cleaning a surface comprising forming a thin gas film (10) of high velocity gas between a surface (14) to be cleaned and a cleaning device (16). The gas film (10), being also a gas bearing, supports the cleaning device (16) and thus forms a self-regulating gap (G) between the surface (14) and the cleaning device (16) so that the cleaning device (16) never contacts the surface (14).  The cleaning device (16) comprises a plurality of bores (22) for directing gas onto the surface (14) and an opening (24) for vacuum.  In the preferred embodiment, the bores (22) are arranged in a circle and the opening (24) is located centrally of the circle.  The thickness of the gas film (10) is determined by the pressure of the incoming gas and vacuum.  The creation of turbulence and eddy currents and the use of an ionized gas are enhancements to the cleaning ability of the gas film (10).  The method includes moving the cleaning device (16) relative to the surface (14) and vice versa.
Patent CA-1335966-C (CA)
Inventor: OSHIMA TAKEHIRO
IPC: C12N1/16
Filed: 1989-02-02
Granted: 1995-06-20
Abstract: A KEX2 endoprotease produced by a recombinant DNA technique, a KEX2 endoprotease shortened at the C-terminal of a native enzyme and still containing a C-terminal hydrophobic region, a soluble KEX2 endopro-tease without a C-terminal hydrophobic region; DNA's coding for the above-mentioned enzymes; expression plasmids containing the DNA; hosts transformed with the plasmid; a process for production of the above-mentioned enzymes using the transformed host; and a process for production of biologically active polypeptide using the above-mentioned enzyme.
Patent CA-1318727-C (CA)
Title: Apparatus for measuring density of a finely divided solid carbon-containing fuel flow
Inventor: VAN DER BURGT MAARTEN J
IPC: G01N9/24
Filed: 1989-02-09
Granted: 1993-06-01
Abstract: A B S T R A C T           APPARATUS FOR MEASURING DENSITY OF A FINELY DIVIDED SOLID CARBON-CONTAINING FUEL FLOW      For a proper solid fuel flow measurement the velocity and the density of the flow must be known. The density can be determined very accurately with a gamma-ray densitometer. In order to minimize the effect of the tube wall the gamma-ray source and -counter are positioned such that the rays "look" through a longitudinal section of the tube taking care that the disturbing effects of the tube bends are minimized. This is accomplished by: 1)   using symmetrical bends for connecting a straight fuel supply pipe with a straight fuel measuring pipe and connecting the latter with a straight fuel exit pipe, and advantageously 2)   using parallel fuel supply and exit pipes.
Patent CA-1338359-C (CA)
Inventor: CREWS ERIC J
IPC: G07C1/24
Filed: 1989-02-24
Granted: 1996-05-28
Abstract: Timing system for use on a track involving a plurality of vehicles including a series of stationary transceivers located at selected locations along the track and a mobile transmitter located in each vehicle.
Patent CA-1334222-C (CA)
Title: Slime control for primary filtration systems
Inventor: ROSS DAVID S
IPC: C02F1/50
Filed: 1989-03-06
Granted: 1995-01-31
Abstract: A process and apparatus for protecting a medium bed filter with underlying support screen from solids contained in a liquid, such as filtrate from the filter, used to regenerate or backwash the medium bed filter.  Filtrate enters a first collection chamber containing a screen assembly covering one outlet, the chamber also containing a second outlet.  Filtrate traverses the screen assembly and is transferred to a second collection chamber with addition of a predetermined amount of bactericide to prevent solids growth therein.  Upon bactericide-treated filtrate reaching a predetermined level within the second chamber, filtrate in the first chamber bypasses the screen assembly and flows out the second outlet to further biological treatment or use.  Bactericide-treated filtrate from the second collection chamber is used to regenerate or backwash the medium bed filter with addition of optional surfactant to assist in cleaning the filter medium and underlying support screen.  The first collection chamber has an alarm system which detect resistance of filtrate flow traversing the screen assembly and warns that the screen assembly requires cleaning or replacement, thus fully protecting the support screen from solids.
Patent CA-1319737-C (CA)
Title: Acupuncture locating device
Inventor: ISHIKAWA KEIHACHI
IPC: A61H39/02
Filed: 1989-04-05
Granted: 1993-06-29
Abstract: ABSTRACT OF THE DISCLOSURE      Apparatus is described for determining cutinous points in an animal body,  (for example a human body) where two metallic points make contact with the body. In use the body and metallic points complete a circuit including resistors, a transistor, transformer and loudspeaker.  When a cutinous point on the body is located the sound through the loudspeaker changes or some other indication is given.
Patent CA-1325369-C (CA)
Inventor: BUCHDRUCKER EWALD
IPC: B62D51/04
Filed: 1989-04-10
Granted: 1993-12-21
Abstract: ABSTRACT         The disclosure relates to the use of two clutches, one associated with each wheel of a two wheel snowblower, selectively operated by a pivoting control on the handle so as to allow for power steering of the snowblower.
Patent CA-1336495-C (CA)
Title: Antacid compositions with prolonged gastric residence  time
Inventor: SPICKETT ROBERT GEOFFREY WILLI
IPC: A61K33/08
Filed: 1989-04-21
Granted: 1995-08-01
Abstract: Antacid powders, tablets etc. of prolonged gastric residence time have an internal phase of a solid antacid and excipient surrounded by a solid external phase containing a hydrophobic substance e.g. an ester of glycerol with palmitic or stearic acid, a hydroxylated polyalkene and a non-ionic emulsifier.
Patent CA-1293689-C (CA)
Title: Low no- high efficiency combusion process
Inventor: HO MIN-DA
IPC: F23C1/00
Filed: 1989-06-01
Granted: 1991-12-31
Abstract: LOW NOx HIGH EFFICIENCY COMBUSTION PROCESS                      ABSTRACT        A process to combust fuel and oxidant at high efficiency and with low NOx generation even when the fuel has non-uniform characteristics and the oxidant is pure oxygen, wherein fuel and oxidant are first combusted within a high velocity oxidant-rich jet, fuel is mixed with combustion products in a recirculation zone and the mixture is aspirated into the oxidant-rich jet and combusted in a diffuse secondary flame at the periphery of the oxidant-rich jet.