baber/WOPTO huggingface dataset:
Patent CA-1267737-C (CA)
Title: Base station capable of monitoring occurrence of interference on every transmission
Inventor: SHIMURA YUKIHIRO
IPC: H04M1/733
Filed: 1987-05-08
Granted: 1990-04-10
Abstract: Abstract of the Disclosure: In a radio communication network comprising a base station (11) and a plurality of wireless telephone sets (12) each of which is communicable with the base station by the use of a plurality of speech radio waves and a control radio wave, a control wave monitoring circuit (22) is included in the base station to monitor the control radio wave on transmission of an allocated one of the speech radio waves and to determine whether or not interference occurs in the control radio wave due to the transmission. On occurrence of such interference in the control radio wave, the allocated speech radio wave is changed to another speech radio wave under control of a line control portion (15). When the control radio wave is divisible into a down control channel directed from the base station towards the wireless telephone sets and an up control channel directed from the wireless telephone sets to the base station, the control wave monitoring circuit monitors the down control channel. Alternatively, the up control channel may be monitored by the control wave monitoring circuit. Each of the wireless telephone sets may be either a cordless telephone set or a mobile telephone set.
Patent CA-1283724-C (CA)
Title: Motion and position sensor
Inventor: NORDHOLM KEN
IPC: G08C21/00
Filed: 1987-06-15
Granted: 1991-04-30
Abstract: ABSTRACT OF THE DISCLOSURE         A motion and position sensor adapted to detect motion and lack of motion is disclosed.  It is comprised of a motion and position sensing switch having means indicative of the motion of a contact making element in the switch and is adapted to provide at least a first and second electrical state according to the motion and lack of motion of the contact making element.  Means is pro-vided for detecting the first and second electrical state.  The detecting means being adapted to provide a signal indicative of the electrical state of said switch.
Patent CA-1309974-C (CA)
Inventor: OBADIA JACQUES
IPC: B65D47/12
Filed: 1987-06-25
Granted: 1992-11-10
Abstract: Pourer and stopper cap assembly comprising a guarantee strip (23) produced in a single, piece with the pourer (1). The guarantee strip (23) extends from the pourer (1) over the entire height of the cap (2) and, at its free upper end, has a turned-in portion (29) which covers the outer upper edge of the cap (2). The invention is used for the packaging of liquids, especially for long-term storage.
Patent CA-1299407-C (CA)
Title: Optical fiber connecting means
Inventor: FREEMAN LUCIUS J
IPC: G02B6/38
Filed: 1987-08-31
Granted: 1992-04-28
Abstract: OPTICAL FIBER CONNECTING MEANS     Abstract Disclosed are aligned plug optical fiber connectors that can accommodate larger differences in plug diameter and/or a wider range of plug diameters than is possible in prior art connectors, resulting inter alia in increased economy. The first of these advantages is attained through the use of bilaterally decoupled plug alignment means, i.e., means in which radial deformation of one half of the alignment means does not result in analogous deformation of the other half. A simple example of bilaterally decoupled alignment means is an alignment sleeve with a centrally located lateral slit. The second of the above advantages is attained through use of limited contact bilaterally decoupled alignment means, i.e., bilaterally decoupled alignment means shaped such that only a limited portion of the plug surface is in contact with the alignment means. A simple example of such alignment means is a transversely split alignment sleeve whose bore has roughly ellipsoidal cross-section. A preferred embodiment of the inventive connector comprises two cylindrical glass plugs, a glass alignment block of L-shaped cross-section, and a bifurcated metal spring clip that separately urges each plug against the two reference surfaces formed by the arms of the alignment block. The presence of a recessed portion of one of the reference surfaces is optical and can facilitate rotational tuning of the fiber connector.
Patent CA-1296104-C (CA)
Title: Metering retrieval of encrypted data stored in customer data retrieval terminal
Inventor: KATZNELSON RON D
IPC: G06Q30/04
Filed: 1987-09-08
Granted: 1992-02-18
Abstract: METERING RETRIEVAL OF ENCRYPTED DATA STORED IN CUSTOMER DATA RETRIEVAL TERMINAL     ABSTRACT OF THE DISCLOSURE A system for controlling and accounting for retrieval of data from a CD-ROM memory containing encrypted data files from which retrieval must be authorized. The system includes an authorization and key distribution terminal and a plurality of customer data retrieval terminals having such memories loaded therein. The authorization terminal authorizes retrieval of data by authorized customer terminals by providing to the authorized customer terminals an encryption key for enabling retrieval of the data and a authenticated credit signal for use in limiting the amount of data to be retrieved from the files. The encryption key is encrypted for communication to the customer terminals in unique unit keys that are stored in the respective customer terminals. The customer terminal limits the amount of data retrieved from the files in accordance with the credit signal; records the amount of data retrieved from the files; and provides to the authorization terminal an authenticated report of the recorded amount of data retrieved from said files. The memory includes data files of different data vendors; and the customer terminal separately records the retrieval of data from the files of the different vendors.
Patent CA-1298654-C (CA)
Title: Tracking method and apparatus for optical recording medium
Inventor: SUZUKI HIDEFUMI
IPC: G11B7/09
Filed: 1987-10-20
Granted: 1992-04-07
Abstract: TRACKING METHOD AND APPARATUS              FOR OPTICAL RECORDING MEDIUM              ABSTRACT OF THE DISCLOSURE    A tracking method for reading/writing data with respect to an optical recording medium having clock tracks each formed of clock bits of optical patterns and data tracks.     The present invention features by: irradiating a pair of light beams onto a pair of clock tracks, between which a data track to be written/read is positioned, from an optical head side, with the beams so deviated from each other in a direction of a relative movement of the optical head with respect to the medium that beam detection signals may have a phasial difference therebetween; detecting reflections of the respective light beams from the clock tracks; obtaining a difference signal between said reflections from the detection signals; extracting a tracking-error signal from the difference signal; and detecting a zero-crossing point of the difference signal to extract a clock signal.
Patent CA-1302372-C (CA)
Inventor: FOCKE HEINZ
IPC: B65B19/22
Filed: 1987-11-12
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE      There is disclosed a packaging machine, especially for producing cigarette packs, the machine having rotating folding turrets for the folding of blanks, and conveyors for cigarette groups, packaging material and cigarette packs.  The folding turrets, conveyors, and any further units such as a drying turret are arranged in two parallel production tracks on opposite sides of a common, centrally disposed supporting stand, for the simultaneous production of  two cigarette packs at a time.  Thus, the output of the machine is increased because of the double-track arrangement, while the effect of any malfunction is minimized since the two production tracks are functionally separate.
Patent CA-1290110-C (CA)
Title: Scraping device
Inventor: SIMPSON RAYMOND A
IPC: F23J3/02
Filed: 1987-11-19
Granted: 1991-10-08
Abstract: ABSTRACT   The invention essentially comprises a scraping device for mounting at the end of a rod, said device having a body comprising a plurality of radial extending arms. At the ends of each arm is the scraping surface. The construction of this scraping device is such that when the device is positioned in a flue or like structure, debris and incrustations can be scraped therefrom by a reciprocal movement of the scraping device against the surface to be cleaned.
Patent CA-1331832-C (CA)
Inventor: HOFMANN GUENTER
IPC: C01D3/04
Filed: 1987-12-15
Granted: 1994-09-06
Abstract: SALT SLAG PROCESSING                      ABSTRACT OF THE DISCLOSURE           NaCl and KCl are crystallized from solutions having them as major components under utilization of tubular heat exchangers and evaporation processes by providing evaporation crystallization in one or several stages, completely and exclusively at tempera-tures of the solution remaining consistently in excess of 90 degrees C, preferably above 100 degrees C.
Patent CA-1298674-C (CA)
Title: Image display
Inventor: RICHARDS NORMAN D
IPC: H04N1/41
Filed: 1987-12-23
Granted: 1992-04-07
Abstract: 3.12.1987 ABSTRACT:          IMAGE DISPLAY Pixel information representing an image for display is coded using data compression.  The data compression consists in obtaining the pixel information as a first matrix of high resolution pixel values, subtracting from this first matrix a second matrix composed of lower resolution pixel values, produced by (ow pass filtering the first matrix, to produce a third matrix of difference values, sub-sampling the second matrix to produce a fourth matrix of less density lower resolution pixel values and coding the third and fourth matrices.  Complementary decoding consists in restituting the second matrix by interpolation filtering the decoded fourth matrix, and combining the restituted second matrix with the decoded third matrix.  Loss of accuracy in the decoding method is reduced by coding and then decoding the fourth matrix during the coding method before it is interpolated to full pixel density to form the restituted second matrix which is subtracted from the first matrix to produce the third matrix of difference values.  In this way, any sub-sampling and interpolation errors in the restituted fourth matrix occur in both the coding method and the decoding method and therefore cancel out.  Figure 3 illustrates the coding method including these coding and decoding steps.
Patent CA-1312560-C (CA)
Title: Drum
Inventor: PRZYTULLA DIETMAR
IPC: B65D1/16
Filed: 1988-02-16
Granted: 1993-01-12
Abstract: ABSTRACT OF THE DISCLOSURE         There is disclosed a drum with solid carrying/trans-porting rings formed out adjacent its end faces. The horizontal lower rim and the vertical inner wall of each carrying ring form contact surfaces for a drum loader.  Each carrying ring is inte-grally connected to the drum via a connecting ring which forms an axial extension of the cylindrical wall portion of the drum.  The base of the groove between the connecting ring and the wall por-tion that extends conically towards the end face of the drum is disposed below, and spaced from, the horizontal contact surface of the carrying (transporting) ring.
Patent CA-1297252-C (CA)
Title: Automatic removal of storage bin build-up
Inventor: AUTRY FARRELL
IPC: B65D88/68
Filed: 1988-02-18
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE       The present invention is directed to a cutting tip de-vice,  and  method  of  using  the  device,  for  removing  the build-up of particulate from an internal surface of a storage bin, such as a coal bunker or a grain silo.  The cutting tip is attached to a source of compressed gas by a hose, and in-cludes at least one internal gas passageway through which the compressed gas is forced.  The compressed gas is at a prede-termined minimum pressure and flow rate sufficient to cause the cutting tip to gyrate in an erratic fashion about the hose, and to strike the build-up with sufficient force to re-move the particulate from the interior of the storage bin. By lowering a hose having the cutting tip attached to it into a storage bin and forcing compressed gas through the hose and cutting tip, the interior of the storage bin is cleared of its build-up.
Patent CA-1291152-C (CA)
Inventor: SCHALLNER OTTO
IPC: C07F9/40
Filed: 1988-04-12
Granted: 1991-10-22
Abstract: ABSTRACT         A phenylhydrazine derivative of the formula                         (IV) in which R4 and R6 independently of one another represent cyano, nitro, halogen, alkyl, alkoxy, alkoxycarbonyl, halogenoalkyl, halogenoalkoxy or a radical -S(O)n-R13, and R5, R7 and R8 independently of one another and of R4 and R6 represent the same radicals as R4 and R6 and additionally represent hydrogen, R13 represents alkyl, halogenoalkyl, amino, alkylamino or dialkylamino, and n represents an integer of 0, 1 or 2, and Z represents one of the radicals       ,            and         wherein R1 represents hydrogen, nitroso, nitro, halogen, alkyl, halogenoalkyl, aryl (optionally substituted by halogen, nitro, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkyl), or one of the radicals -S(O)n-R9; -?-R10;   or -?(OR11)2 and R9 represents hydrogen, hydroxyl, halogen, alkylamino, dialkylamino, alkyl, halogenoalkyl or aryl optionally substituted by halogen C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkoxy, R10 represents hydrogen, alkyl or aryl optionally substituted by halogen, C1-C4-alkyl, C1-C4-alkoxy or C1-C4-halogenoalkyl, R11 represents hydrogen, alkyl, halogenoalkyl, alkenyl, alkynyl or aralkyl, and n is as defined above, and Hal and Hal' represents identical or different halogen atoms.    These compounds are useful as intermediates in the preparation of herbicidal 5 amino-1-phenyl-pyrazoles.
Patent CA-1306834-C (CA)
Title: Tampon applicators and compositions for making same
Inventor: WEBB ANDREW
IPC: A61F13/26
Filed: 1988-05-09
Granted: 1992-09-01
Abstract: TAMPON APPLICATORS AND COMPOSITIONS FOR MAKING SAME     ABSTRACT            A biodegradable tampon applicator comprising a molded, flexible, polymeric hollow cylindrical body for enclosing a tampon therein and having a first open end through which said tampon is expelled and a second open end for receiving means for expelling said tampon. said body comprising a moldable poly 3-bydroxybutyric acid composition.
Patent CA-1310775-C (CA)
Title: Composite articles
Inventor: ELING BEREND
IPC: C08G18/22
Filed: 1988-06-02
Granted: 1992-11-24
Abstract: Abstract Composite Articles A composite article comprising a body of semi-rigid polyurethane foam in contact with a layer or sheet of polymeric material.  The foam is prepared by reacting an organic polyisocyanate with a polymeric polyol having a hydroxyl number in the range from 20 to 80 and a crosslinking agent or chain extender having a hydroxyl number of at least 250 in the presence of water and a catalytically effective amount of an alkali metal or alkaline earth metal salt of an acid of the formula:               R-A-COOH          (1) wherein R represents RIOCO-, R'COO- or R'O-, R' represents an optionally substituted hydrocarbon or heterocyclic radical and A represents an optionally substituted C1-C3 chain.  The composite articles produced are resistant to staining of the polymeric material by the polyurethane foam catalyst.
Patent CA-1299411-C (CA)
Inventor: THORNCRAFT DAVID A
IPC: G02B6/28
Filed: 1988-06-06
Granted: 1992-04-28
Abstract: ABSTRACT           "ASYMMETRIC FIBRE OPTIC COUPLERS AND THEIR FABRICATION"           An asymmetric multi-mode fibre optic coupler is assembled from two or more multi-mode optical fibres of different core and cladding diameters but substantially equal cladding refractive indices.  The fibres are selected so as to have substantially equal effective refractive indices for their respective highest-order cladding modes, at least in the fabricated coupler.
Patent CA-1299371-C (CA)
Title: Dry mix explosive composition
Inventor: WALDOCK KEVIN H
IPC: C06B31/28
Filed: 1988-06-07
Granted: 1992-04-28
Abstract: ABSTRACT OF DISCLOSURE     The invention relates to a dry mix explosive composition which includes a bulking agent which comprises from 1 - 20% (by weight) vegetable protein additive, having a bulk density of 0.1 - 0.6 grams per cubic centimetre. It is preferred that the explosive composition have a bulk density of from 0.5 -1.1 grams per cubic centimetre.
Patent CA-1330089-C (CA)
Title: Derivatives of n-phenylpyrazoles
Inventor: BUNTAIN IAN G
IPC: A01N47/02
Filed: 1988-06-10
Granted: 1994-06-07
Abstract: ABSTRACT            N-Phenylpyrazole derivatives of the formula:                   (I) wherein R1 represents cyano, nitro, halogen, acetyl or formyl; R2 represents R5SO2, R5SO or R5S in which R5 is optionally halogen substituted alkyl, alkenyl or alkynyl; R3 represents a hydrogen atom or a group NR6R7 wherein R6 and R  each represent hydrogen, alkyl, alkenylalkyl, alkynylalkyl,  formyl, optionally halogen substituted alkanoyl, optionally halogen substituted alkoxycarbonyl, or alkoxymethyleneamino, halogen, or R6 and R7 together form a cyclic imide and R4 represents a substituted phenyl group possess arthropodicidal, plant nematocidal, anthelmintic and anti-protozoal properties; their preparation, compositions containing them and their use are described.
Patent CA-1318102-C (CA)
Inventor: CONSIDINE RICHARD
IPC: E04B1/14
Filed: 1988-07-22
Granted: 1993-05-25
Abstract: ABSTRACT OF THE DISCLOSURE        The structural wall panel section is manufactured by feeding the wafer board panel in a predetermined direction, applying an adhesive to the wafer board panel as it is being fed,  locating the wafer board panel on top of a plurality of wall section components which includes a stud(s) and core, and pressing the wafer board panel onto the wall section components for a predetermined period of time to secure the wafer board panel to the wall section components.
Patent CA-1330389-C (CA)
Title: Corrosion inhibition
Inventor: FRANEY JOHN P
IPC: C23F11/18
Filed: 1988-10-05
Granted: 1994-06-28
Abstract: Abstract Corrosion of metals such as silver and copper by sulfur and chlorine containing entities are substantially prevented by surrounding these materials with a suitable polymeric structure. The structure should be a polymer containing a material such as copper or aluminum that reacts readily with corrosive gases. In one advantageous embodiment a polymer bag containing approximately 35 weight percent of dispersed, powdered copper is employed to enclose a metal containing structure such as a printed circuit board. Use of this expedient substantially reduces corrosion of the printed circuit board.
Patent CA-1299197-C (CA)
Title: Collectors and processes for making and using same
Inventor: WANG SAMUEL S
IPC: B03D1/018
Filed: 1988-10-13
Granted: 1992-04-21
Abstract: TITLE NOVEL COLLECTORS AND PROCESSES    FOR MAKING AND USING SAME     ABSTRACT OF THE DISCLOSURE      A method for the production of alkyl or alkaryl hydroxamic acids and/or salts wherein a C8-C22 alcohol is employed with water as the solvent is disclosed as well as the resultant salt and/or acid solutions per se and their use in the flotation of non-sulfide minerals, preferably clay.
Patent CA-1311167-C (CA)
Title: Fuel injection line with compression nipple formed thereon by upsetting and process for the production thereof
Inventor: GUIDO JUERGEN
IPC: F16L19/02
Filed: 1988-10-21
Granted: 1992-12-08
Abstract: ABSTRACT OF THE INVENTION   A fuel injection line for an internal combustion engine is provided at at least one of its ends with a compression nipple formed thereon by upsetting, with a sealing taper portion having a sealing surface at a taper angle relative to the axis of the nipple. The taper portion, with plastic deformation of its sealing surface, serves for sealing against a hollow taper surface, with a corresponding taper angle, of a co-operating portion which is harder than the sealing surface of the nipple.  Its rearward bearing surface which is intended for bearing against a hollow taper surface of a cap nut for fixing the nipple is in the form of a spherical segment which blends into the outside peripheral surface of the adjoining pipeline by way of a rounded portion. The injection line is formed from a pipe of steel of cold-worked hardness, the nipple being formed on the pipe and then subjected to inductive soft annealing in its zone in the region at which the surface of its sealing taper portion is in contact against the hollow taper surface of the co-operating portion.
Patent CA-1326241-C (CA)
Inventor: PUCKETTE THOMAS A
IPC: C07F9/94
Filed: 1988-10-24
Granted: 1994-01-18
Abstract: Abstract of Disclosure A process is disclosed for preparing bidentate ligands of the formula:                       wherein:    each Ar is independently selected from aromatic ring compounds having 6 up to 14 carbon atoms, e.g., phenyl, naphthyl, phenanthryl and anthracenyl;        the x bonds and the y bonds are attached to adjacent carbon atoms on the ring structures;        each R, when present as a substituent, is independently selected from alkyl, alkoxy, aryloxy, aryl, aralkyl, alkaryl, alkoxyalkyl, cycloaliphatic, halogen, alkanoyl, alkanoyloxy, alkoxycarbonyl, carboxyl, cyano or formyl radicals;        n is a whole number in the range of 0-4 were Ar is phenyl; 0-6 where Ar is naphthyl; and 0-8 where Ar is phenanthryl or anthracenyl;        each R1 and R2 is independently selected from alkyl, aryl, aralkyl, alkaryl or cycloaliphatic radicals, or substituted derivatives thereof;        each R3 and R4 is independently selected from hydrogen and the R1 substituents;        each of the above alkyl groups or moieties is straight or branched chain of 1-20 carbons;     each aryl group contalns 6-10 rings carbons;     each cycloaliphatic group contains from 4-8 ring carbons;     each Y is independently selected from the elements N, P, As, Sb and Bi; and substituted derivatives include others, amines, amides, sulfonic acids, esters, hydroxyl groups and alkoxy groups.     The invention process comprises coupling two molecules of a reactant of the formula:                           by maintaining a redox reaction system comprising said reactant, a polar aprotic solvent, a nickel compound snd a reducing agent at a temperature and for a time sufficient to form the desired bidentate ligand.
Patent CA-1331930-C (CA)
Inventor: SCHROEDER LISA R
IPC: A23L1/30
Filed: 1988-11-28
Granted: 1994-09-13
Abstract: BEVERAGES CONTAINING FISH OILS    STABILIZED WITH FRUCTOSE                              ABSTRACT          Disclosed are food products, especially stable beverage emulsions which contain nonhydrogenated fish oil yet which exhibit enhanced stability of the fish oil against flavor and aroma degradation.  The improved food products are stabilized by the incorporation of the food product such that the weight ratio of fructose to fish oil is at least about 0.01:1.  Surprisingly, incorporation of modest amounts of fructose in food products within the indicated minimum provides a stabilizing effect of the highly unstable fish oil.  The present invention finds particular suitability for use in connection with fish oils rich in omega-3 fatty acids.
Patent CA-1332373-C (CA)
Inventor: DULEY WALTER W
IPC: B23K26/00
Filed: 1988-12-19
Granted: 1994-10-11
Abstract: ABSTRACT OF THE DISCLOSURE           A method of modifying the reflectivity and emissivity of a surface of a material comprises the steps of irradiating the surface with a beam of coherent pulsed radiation at a power sufficient to generate a surface plasma and scanning said beam across said surface.  Successive pulses of radiation are caused to overlap and chemical change at the surface is promoted by provision of a localized atmosphere.  The surface produced has features on a scale of less than 50 microns and 18 restricted to a depth of less than 10-3 cm.  The body of the material is not affected.