baber/WOPTO huggingface dataset:
Patent CA-1314998-C (CA)
Title: Apparatus useful for correction of single bit errors and detection of double bit errors in the transmission of data
Inventor: TAN CHARLES M C
IPC: H03M13/00
Filed: 1988-09-28
Granted: 1993-03-23
Abstract: Abstract An apparatus which corrects single bit errors and detects double bit errors is presented. The present invention includes an encoder/decoder. During encoding the encoder/decoder produces a plurality of parity bits. These parity bits allow the correction of single bit errors in transmission and the detectionof double bit errors in transmission. The encoder/decoder comprises a plurality of arrays. Each array consists of logic gates arranged in the form of binary tree. Each array generates a single parity bit. Further every array receives as input the same number of data bits; however, each array receives a unique combination of data bits.      When the encoder/decoder is used in decoding, the encoder/decoder produces a plurality of syndrome bits. These syndrome bits are used to correct single bit errors in transmission and to detect double bit errors in transmission. When decoding, each array of logic gates within the encoder/decoder produces a single syndrome bit. Each array has as input data bits, as when it is encoding. Additionally each array receives as input one and only one parity bit. The receipt of one and only one parity bit by each array allows for the encoder/decoder to be used both for encoding and decoding. This allows a great reduction in hardware required to implement error correction and detection.
Patent CA-1285750-C (CA)
Title: Liquid transfer apparatus
Inventor: DAVIDSON GORDON K
IPC: B05B5/16
Filed: 1988-10-04
Granted: 1991-07-09
Abstract: ABSTRACT          Apparatus for transferring an electrically con-ductive liquid from a first container to a second container in which the liquid is maintained at a substantially differ-ent electrical potential from the electrical potential of the liquid in the first container without causing significant change in the electrical potential of the liquid in the first container.  The apparatus has a liquid transfer chamber with an electrically insulating inner surface, a sprinkler for sprinkling liquid from the first container into an upper por-tion of the liquid transfer chamber to cause liquid droplets to fall from the upper portion to a lower portion of the cham-ber, and a second container connected to the lower portion of the liquid transfer chamber to receive liquid therefrom.  The liquid in the second container is maintained at a substantial-ly different electrical potential from the electrical poten-tial of liquid in the first container, any flow of electric current from liquid in the second container to liquid in the first container is detected, and adjustable appropriate elec-trical potential is applied to liquid droplets from the sprinkler to reduce the current flow substantially to zero.
Patent CA-1314647-C (CA)
Inventor: SWOFFORD HOWARD W
IPC: C08J7/046
Filed: 1988-11-22
Granted: 1993-03-16
Abstract: ABSTRACT OF THE INVENTION:     An aqueous, radiation curable, coating composition is disclosed which comprises (A) from 50 to 85 percent, based on the total weight of the dispersion, of a vinyl functional silane, (B) from 15 to 50 percent, based on the total weight of tbe dispersion of a multifunctional acrylate, and (C) optionally, from 1 to 3 weight percent of a photoinitiator.  The vinyl-functional silane is the partial condensate of silica and a silane, such that at least sixty percent of the silane is a vinyl-functional silane conforming to the formula (R)a  Si(R')b(R")c wherein R is allyl or vinyl functional alkyl R' is hydrolyzable alkoxy or methoxy R" is non-hydrolyzable, saturated alkyl, phenyl, or siloxy, such that a + b + c = 4; and a > 1; b > 1; c > 0.    The above-described coating composition may be applied to plastic materials and cured by exposure to ultraviolet or electron beam irradiation to form a substantially clear, abrasion resistant layer.  The radiation curable composition has particular utility as an abrasion resistant coating for synthetic films, preferably polyester films.  Such coated films may then be employed in automotive glazing and touch panel control applications.
Patent CA-1341264-C (CA)
Inventor: GROLLIER JEAN-FRANCOIS
IPC: A61K8/37
Filed: 1988-12-05
Granted: 2001-06-26
Abstract: Combination intended for inducing and stimulating hair growth and reducing hair loss, which comprises: (a) a component (A) containing, in a physiologically acceptable medium, at least one 1,8-dihydroxy-, 1,8-diacyloxy- or 1-hydroxy- 8-acyloxyanthracene or -anthrone derivative, (b) a component (B) containing, in a physiologically acceptable medium, at least one pyrimidine derivative,  corresponding to the formula: <IMAGE>  in which R1 denotes a group <IMAGE> in which R30 and R31 can denote, independently of one another, hydrogen or an alkyl, alkenyl, alkylaryl or cycloalkyl group, R30 and R31, together with the nitrogen atom to which they are linked, can also form a heterocycle chosen from aziridinyl, azetidinyl, pyrrolidinyl, piperidyl, hexahydroazepinyl, heptamethylenimine, octamethylenimine, morpholinyl and 4-[(lower) alkyl]piperazinyl groups, it being possible for the heterocyclic groups to be substituted on the carbon atoms with one to three lower alkyl, hydroxyl or alkoxy groups; the group R29 denoting a hydrogen atom or an alkyl, alkenyl, alkyloxy, cycloalkyl, aryl, alkylaryl, arylalkyl, alkylarylalkyl, alkoxyarylalkyl or haloarylalkyl group; as well as the addition salts with physiologically acceptable acids, the components (A) and (B) being present in a single composition or being intended for separate applications, either simultaneous or successive or separated by an interval of time, on the hair and the scalp.
Patent CA-1290672-C (CA)
Inventor: SEKI MITSUHIRO
IPC: G03F7/16
Filed: 1988-12-14
Granted: 1991-10-15
Abstract: Abstract A  thin-film  releasing  apparatus  in  which  a portion of a thin-film is released from a surface of a substrata on which the thin film is stuck,  the remaining portion  of  thin  film  is  then  released starting from the released portion thereof and the thus  released  thin  film  is  then  removed.   The apparatus  comprises  a  first  thin  film  conveyance system for releasing the remaining portion of the thin film from the thin film by nipping the thin film at the initially released portion thereof and for conveying the thus released thin film upwardly from the surface of the substrate simultaneously,  and a second  thin-film  conveyance  system  for  mounting thereon the thin film conveyed by the first thin film conveyance system and for conveying the mounted thin film  in  a  direction  intersecting  a  conveyance direction of the substate.
Patent CA-1308817-C (CA)
Title: Low dielectric composite substrate
Inventor: BAISE ARNOLD I
IPC: C04B41/48
Filed: 1989-03-08
Granted: 1992-10-13
Abstract: ABSTRACT      The cracking experienced during thermal cycling of  metal:dielectric  semiconductor  packages  results from a mismatch in thermal co-efficients of expansion. The non-hermeticity associated with such cracking can be addressed by backfilling the permeable cracks with a flexible material.  Uniform gaps between the metal and dielectric materials can similarly be filled with flexible  materials  to  provide  stress  relief,  bulk compressibility and strength to the package.  Further-more, a permeable, skeletal dielectric can be fabri-cated as a fired, multilayer structure having sintered metallurgy and subsequently infused with a flexible, temperature-stable material to provide hermeticity and strength.
Patent CA-1322387-C (CA)
Title: Measuring electrical impedance of low conductivity samples
Inventor: BLAKE-COLEMAN BARRIE C
IPC: G01N27/02
Filed: 1989-03-08
Granted: 1993-09-21
Abstract: ABSTRACT     Apparatus for measuring the electrical impedance of low conductivity samples, and particularly microbial suspensions, has a coil surrounding a tubular sample container. A capacitive pick-up on the sample wall provides an input to a variable gain amplifier driving the coil. The resident frequency of the circuit is measured to provide an indication of sample conductivity.
Patent CA-1328961-C (CA)
Inventor: PALEY STEVEN J
IPC: F24F7/06
Filed: 1989-03-22
Granted: 1994-05-03
Abstract: WIPERS FOR CLEANROOM USE AND METHOD                  Abstract of the Disclosure A method and a wiper for reducing particulate contamination which otherwise might result from the use of the wiper in a controlled environment, such as that maintained in a cleanroom, the wiper being of the type constructed at least partially from a thermoplastic fabric material by severing the wiper along peripheral edges thereof from a sheet of such material having indeterminate dimensions, the method and the wiper providing a fused border in the material along the peripheral edges of the wiper and extending inwardly into the wiper a distance great enough to provide the fused border with sufficient area and sufficient tear-strength to maintain therein segments of the material of the wiper which otherwise might be released from the peripheral edges of the wiper during use of the wiper, yet small enough to maintain pliability and absorbency in the wiper for wiping procedures.  In one embodiment of the wiper, two outer plies of the material are joined along the fused border to establish a sealed envelope within which is placed an inner ply of absorbent material isolated from the controlled environment by the outer plies of material and the fused border.
Patent CA-1318886-C (CA)
Title: Dispenser for a stack of note paper
Inventor: WINDORSKI DAVID C
IPC: B65D83/08
Filed: 1989-05-10
Granted: 1993-06-08
Abstract: Abstract of the Disclosure A dispenser for sheets of note paper disposed in a stack with each of the sheets having a narrow band of adhesive coated on one surface along one edge by which the sheets are adhered together and with the sheets being stacked with the band of adhesive of adjacent sheets at alternate opposite edges of the stack.  The dispenser comprises a base having a top surface with a generally planar support surface portion adapted to support a lower surface of the stack.  Also included is a body having a bottom surface including spaced pressure surface portions adapted to engage and be supported on an upper surface of the stack adjacent the edges of the sheets along which the narrow bands of adhesive are coated with the spaced pressure surface portions engaging the upper surface of the sheets at predetermined distances from the edges of the sheets along which the narrow bands of adhesive are coated, and convex arcuate surface portions between the pressure surface portions and a top surface defining a slot through and extending centrally across the body.  The convex arcuate surface portions have radii with a dimension as least as large as the predetermined distances to restrict curling of sheets of paper pulled from the dispenser through the slot, and the body has sufficient weight to afford pulling a sheet from the stack through the slot without substantially lifting the body from the stack.
Patent CA-1341126-C (CA)
Title: Pressure-sensitive adhesive
Inventor: SMOLDERS ROBERT R L
IPC: C09J155/00
Filed: 1989-06-05
Granted: 2000-10-24
Abstract: The present invention provides a phase-separated ultraviolet-radiation polymerized pressure-sensitive adhesive having improved low-temperature performance.      Adhesives of the invention contain from about 70 parts to about 98 parts of a acrylic copolymer and, correspondingly, from about 30 parts to about 2 parts of a hydrocarbon elastomer which contains at least one segment having a lower glass transition temperature than the acrylic copolymer.
Patent CA-1333984-C (CA)
Title: Composition and method for neutralizing acidic  receiving waters
Inventor: CAIRNS JAMES E
IPC: C02F1/66
Filed: 1989-07-20
Granted: 1995-01-17
Abstract: A method is disclosed for neutralizing an acidic receiving water which comprises incorporating into said receiving water, or acidic water input thereto, an effective amount of certain set cement as compositions. The set cement compositions as disclosed are prepared from components comprising unset hydraulic cement such as portland cement, lime, and formula water and provide a controlled release of alkalinity to acidic receiving waters.  Other components which may be used in preparing the set cement compositions include water absorbing organic polymers, granular or fibrous filler material, metal chelating agents, fluorides and biocides.
Patent CA-1321467-C (CA)
Title: Concrete block molding machine having continuously driven vibrating shaft mechanism which can be programmably vibrated and method of programmably vibrating such machines
Inventor: WALLACE MARK P
IPC: B28B1/08
Filed: 1989-07-31
Granted: 1993-08-24
Abstract: CONCRETE BLOCK MOLDING MACHINE HAVING CONTINUOUSLY DRIVEN VIBRATING SHAFT MECHANISM WHICH CAN BE PROGRAMMABLY VIBRATED AND METHOD OF PROGRAMMABLY VIBRATING SUCH MACHINES                    ABSTRACT OF THE DISCLOSURE           A cement block molding machine has a vibratible mold box incorporating at least one molding cavity for a cement mixture which is to be densified in the cavity. A continuously driven shaft assembly mounts an eccentric fixed portion and a circumferentially adjustable balancing mass.  The shaft assembly has a cylinder with a piston therein, connected to the mass to produce rotary motion of the mass relative to the fixed eccentric portion.  A spring of predetermined rate opposes this.  The pressure of the fluid introduced is varied to change the amplitude of the vibration imparted during each cycle.
Patent CA-1328343-C (CA)
Inventor: WAGSTAFF FRANK E
IPC: B22D11/04
Filed: 1989-09-26
Granted: 1994-04-12
Abstract: MEANS AND TECHNIQUE FOR FORMING THE CAVITY OF AN    OPEN-ENDED MOLD                       Abstract The mold is equipped with a casting ring 6 which is formed by clamping together four generally rectilinear wall segments 8 that are, first, arranged like the sides of a picture frame about the rabbet 52 of a rectangular case 10, and then abutted together, sash-like, at their mitered ends 80, to form a ring, the casting surface 9 of which will produce the rectangular cross-sectional outline common to sheet ingot or the like, when molten metal is fed through the ring.  The clamping action is produced by a set of screws 94 at the corners 10' of the case, and after the ring 6 is clamped about a pair of spaced, axially opposing lips 54 and 60 on the case and an annular plate 14 thereabove, the plate 14 is clamped to the top of the case, to secure the ring in place and seal the axial ends of the ring against fluid flow thereacross.  This makes it possible, in turn, to fabricate the wall segments 8 from graphite or other fluid-permeable material, and to practice the process disclosed in USP 4,598,763, supplemented, if desired, by the process disclosed in USP 4,693,298.
Patent CA-1307857-C (CA)
Inventor: SCHMIDT HANS-F
IPC: H05K3/40
Filed: 1989-09-28
Granted: 1992-09-22
Abstract: ABSTRACT OF THE DISCLOSURE    A printed circuit board includes an injected molded substrate having   a  pattern  recessed   in  the substrate  surface  of interconnects, through-connections and contact surfaces. A trench-shaped depression is provided in the substrate surface in the region of each interconnect, and a planar depression is provided in the substrate's surface in at least one of (a) the region of each through-connection and (b) the region of each contact surface.          The pattern of recesses is covered with a conductive metal coat, and the depth of each planar depression is greater than the depth of each trench-shaped depression, so that the metal coat fills the trench-shaped depressions to the surface of the substrate, while in the planar depressions a distance remains between the metal coat and the surface of the substrate.  A solder stop lacquer can then be applied such as by roller coating, without the necessity of photo-structuring and without filling the planar depressions.
Patent CA-1332034-C (CA)
Inventor: BOSTER CLARK S
IPC: F01D1/02
Filed: 1992-11-17
Granted: 1994-09-20
Abstract: ABSTRACT OF THE DISCLOSURE        The present invention is directed to improvements in a pump having a pump cover and a hydrostatic bearing.  In particular, the invention provides a radially slotted keyway spacer ring for providing alignment between the bearing and the cover.  The ring has a plurality of equally spaced apart holes and at least four slots equally radially spaced apart and radially oriented.
Patent CA-1340292-C (CA)
Inventor: MICH THOMAS F
IPC: C07D471/04
Filed: 1993-04-13
Granted: 1998-12-29
Abstract: Novel naphthyridine-, quinoline-carboxylic acid  compounds  are  disclosed.    These compounds,  which  are  useful  intermediates  in  the preparation  of  antibacterial  agents,   have  the following general structure.                          (see fig.I) wherein L is fluorine or chlorine; X is CH, CF, or N; R1 is hydrogen, an alkyl having from one to six carbon atoms, or a cation; R2 is a cycloalkyl of from three to six carbon atoms, or a pharmaceutically acceptable acid addition salt thereof.
Patent DK-158482-C (DK)
Inventor: BAKER JOHN RICHARD
IPC: G01N33/66
Filed: 1982-12-22
Granted: 1990-10-15
Abstract: The invention provides a method of determining serum glucose levels in a blood sample or a sample derived from blood, said method comprising the steps of maintaining the sample at a controlled temperature, controlling the pH of the sample to a suitable value, between 10 and 14, adding a colouring agent, preferably a reducible dye such as nitro-blue tetrazolium, to the sample and after a first delay in taking a first colour measurement and after a second delay in time taking a second colour measurement and comparing the resultant colour change with the colour change in a standard solution, the selected colouring agent and pH conditions being such that a change of colour in the colouring agent is caused by the glucose in the sample while that glucose is still reacted or associated with an amine group of protein in that blood and when the glucose has undergone a molecular re-arrangement and is present in the form of fructosamine.
Patent FI-83457-C (FI)
Inventor: MACK GERHARD
IPC: G03F7/26
Filed: 1985-10-28
Granted: 1991-07-10
Abstract: A developer for negative-working reproduction layers and process therefor. The developer includes water, an organic solvent, a surface-active agent, an alkaline agent, a complexing agent, a buffer substance, an emulsifier and an n-alkanoic compound. Use of the developer suppresses speck and fibril formation in the developing process, and can be used in reproduction layers which optionally contain a binder.
Patent FI-73568-C (FI)
Inventor: ORTHEY GEBHARD
IPC: A01D34/416
Filed: 1985-12-04
Granted: 1987-11-09
Abstract: PCT No. PCT/EP85/00160 Sec. 371 Date Dec. 5, 1985 Sec. 102(e) Date Dec. 5, 1985 PCT Filed Apr. 9, 1985 PCT Pub. No. WO85/04548 PCT Pub. Date Oct. 24, 1985.In a cutting head for an electric-motor-driven filament-type cutter the automatic adjustment of the length of the filament is effected in that intermittently a rotational movement occurs between a filament spool (36) and a sleeve (24) mounting said spool for axial displacement. The sleeve (24) is provided on the outside with locking cams and the filament spool on the inside with cams cooperating therewith. The sleeve (24) can be pushed in by hand against spring pressure to cancel the intermittent locking. For automatic filament adjustment a centrifugal adjustment is provided. For this purpose at least two radial ball slots (40) are provided between the housing portion (14) and a radial extension (48) of the sleeve (24) and in the ball slots balls (44) are guided which are adapted to be urged outwardly by centrifugal force. Since the height of the ball slot varies over an inclined plane (42), when the balls (44) move radially outwardly a spreading of the two parts (48, 14) takes place so that intermittent unlocking results. The individual rotational angle portions are limited by lower and upper cams which cooperate with a counter cam which is controlled by the displacement movement and cooperates alternately with the one or other cam, the sectionwise or intermittent angular displacement taking place by repeated switching on and off of the motor.
Patent FI-83132-C (FI)
Inventor: KELLER BRUNO
IPC: F24D13/02
Filed: 1986-04-22
Granted: 1991-05-27
Abstract: For reducing the energy required for lighting and heating in a room (2) of a building (1), windows (4) and opaque wall parts (3) of the outside wall are designed so that their heat transfer numbers (kF and kW, respectively) are smaller than 1 W/m2K. Electric lighting fixtures (7) and heaters (8) which have at least approximately equal power ratings are used for lighting and heating.
Patent FI-81388-C (FI)
Inventor: BILLARD GEORGES
IPC: B65H54/20
Filed: 1986-07-24
Granted: 1990-10-10
Abstract: The installation comprises a spinnerette which receives a thermoplastic material, and a rotating spindle carrying a support or tube which ensures the drawing of the filaments from the spinnerette as well as the winding of the filaments. There is an assembly and a guide device and a traverse mechanism comprising a filament guide, which has an opening facing spindle which communicates with an internal guide zone with at least two slots. Pref. slots of the filament guide are regularly spaced on either side of a line through the centre of the yarn guide perpendicular to the axis of rotation of the spindle. The depth of the slots is different for the slots on one side of the guide. Device with slots is attached to a rod parallel to the axis of rotation by the intermediate of means which allows the regulation of the distance sepg. the guide from the preceeding zone. Mainly used in the mfr. of glass filaments, assures sepn. of individual filaments in subsequent unwinding.
Patent FI-84568-C (FI)
Inventor: KRAUTZBERGER DIETER
IPC: B27G13/04
Filed: 1987-09-09
Granted: 1991-12-27
Abstract: A cylindrical cutter head for a wood planing machine has mounted in its circumference a number of disposable knife blades which are clamped in place with the help of centrifugal wedges in lengthwise grooves. Between each disposable knife blade and each centrifugal wedge there is positioned a bracket of L-shaped profile consisting of a base strip which is immovably attached to the cutter head body and a clamping strip bearing against the knife blade, this clamping strip being elastically deformable to a small extent. By means of a conformal relation of a profiled region of the disposable knife blade with a corresponding profiled region of the clamping strip, the disposable knife blade is held firmly in position when clamped in. After loosening of the centrifugal wedge, the disposable knife blade can be easily withdrawn in a lengthwise direction and can be replaced with accurate positioning.
Patent FI-96400-C (FI)
Inventor: HEYES PETER JOHN
IPC: B32B15/08
Filed: 1989-06-14
Granted: 1996-06-25
Abstract: A laminated metal sheet having adhered to one of its major surfaces a composite co-extruded polyolefin-containing film (B) comprising a plurality of layers in the following order:-   (B1) an inner layer of a bonding resin which is an acid modified polyolefin resin containing carboxyl or anhydride groups, (B2) a layer of a polyamide, the thickness of the layer being not greater than 9 microns, (B3) a further layer of a bonding resin which is as defined for layer (B1), and   (B4) a layer of a polyolefin.   The laminates of the invention are useful for forming with containers or various components therefor.