baber/WOPTO huggingface dataset:
Patent CA-1286065-C (CA)
Title: Formation of continuous pores membrane by treating liquid medium containing protien with reactant
Inventor: SLEYTR UWE B
IPC: B01D69/02
Filed: 1985-03-08
Granted: 1991-07-16
Abstract: ABSTRACT OF THE DISCLOSURE         A structure usable as an ultrafiltration membrane has membranes with uniform continuous pores. The membranes are linked together to form a stable unsupported film, or are connected to a carrier, preferably a porous one. Each membrane consists of protein or protein-containing molecules which are arranged to form a crystal lattice defining continuous pores free of the said molecules. Such membranes can be formed by suspending or dissolving protein-containing molecules derived from a surface layer of a cell wall of a procaryote microorganism in an aqueous medium which contains at least one of a chaotropic agent and a surfactant or has a predetermined pH value followed by a recrystallization process designated as self-organization. The molecules are preferably deposited on or into the carrier and are cross-linked intra- or intermolecularly or with the carrier, respectively, through foreign molecules. The resulting structure is suitable for use as a separating organ for a gas separation or for an ion exchange process, as well as for use as a carrier structure for other semi-permeable membranes, such as hyperfiltration membranes. Moreover, the membrane in vesicle form can serve as a chromatography column and, in the form of film, as envelope material for the most varied substances.
Patent CA-1277981-C (CA)
Title: Process for converting cellulose to glucose and other (poly)saccharides
Inventor: NAGLE RICHARD T
IPC: C13K1/02
Filed: 1986-06-27
Granted: 1990-12-18
Abstract: ABSTRACT OF THE DISCLOSURE        A method of hydrolyzing cellulose to glucose and other (poly)saccharides, involving the bringing together in a reaction area an alphacellulose containing material, water, an effective amount of a calcium chloride catalyst and a minor amount of HCl.  The temperature of the feedstock is adjusted to between 150°C to 250°C at a pressure of at least 160 psig for a retention time of at least 10 seconds in the reaction area to convert the alphacellulose to glucose and other (poly) saccharides.  The method involves the use of HCl on a total mass basis, ranging from 0.025% to 1.0% by weight of the reaction mixture which is fed into the reactor.             SPECIFICATION        This invention relates to methods of hydrolyzing cellulose to glucose and other (poly)saccharides and is most particularly related to new and improved industrial processes of this general class.  As used the term (poly)saccharides includes the various mono and (poly)saccharides that will readily occur to those skilled in the art, which are capable of being produced by the process of the present invention.        Trees and agricultural plants consist of three main components, cellulose, hemicellulose and lignin.  Cellulose which is a polymer of glucose is held together by glycosidic bonds.  It occurs in both amorphous and crystalline forms.          The crystalline cellulose is a densely packed crystal structure which makes hydrolysis difficult.  However, the C-O glycosidic bond is the weakest in the chain and can be broken by specific enzymes or chemical reagents into its component sugars.
Patent CA-1303275-C (CA)
Title: Pressure responsive variable electrical resistive rubber material
Inventor: MASHIMO SATOSHI
IPC: C08K7/04
Filed: 1986-07-03
Granted: 1992-06-09
Abstract: Abstract of the Disclosure A   pressure-responsive  variable  electrical resistive rubber  material including  at least one inorganic filler  selected from a group consisting of  conductive  carbon  black,   short  fibers  of nonmetallic   inorganic   material,   powder,  and whiskers.  The filler  is  dispersed  in  a matrix formed of  an electrically insulative rubber.  The rubber  material  exhibits  a  gradually  reducing resistance value as a gradually increased pressing force is applied  thereto.    The  rubber material provides a  wide range of relationship between the applied force and the electrical resistance there-of.   The rubber  material is adapted for use as a pressure  sensor  having  excellent  fatigue creep resistance.
Patent CA-1282758-C (CA)
Inventor: DRANE JOHN H
IPC: F21L4/00
Filed: 1986-08-15
Granted: 1991-04-09
Abstract: TORCH                              ABSTRACT   A hand torch has a bulb holder 8 of molded plastics material, designed to protect the bulb 19 from damage due to movement of the batteries 14 if the torch is dropped.  The bulb holder has an outer wall 9, inner wall 10, forward flange 11 within which is a bulb-holding recess, and radial ribs 12 against which the forward rim 13 of the battery abuts when the battery contact pip 17 touches the bulb center contact spring 16.  The ribs 12 are abutments preventing the battery from moving towards the bulb if the torch is dropped.  The lens 4 is made of Oroglas? DR toughened acrylic material.
Patent CA-1283949-C (CA)
Inventor: YASUMURA MASAYUKI
IPC: H02M3/335
Filed: 1986-09-04
Granted: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE          An improved switching power source in which the output of the DC input power source is switched off and on under control of switching elements of an oscillating drive circuit which is supplied to the primary side of a power source transformer and from which a constant voltage output is supplied from the secondary of the transformer.  A saturable reactor transformer supplies an input to the control terminals of the switching elements of the oscillating drive circuit and the inductance of the saturable reactor transformer is controlled with the output voltage from the secondary of the power source transformer so as to control the oscillating frequency of the oscillating drive circuit and, thus, stabilize the output voltage at the secondary of the power source transformer so as to obtain an increased conversion efficiency reduce the size and weight of the transformer, reduce the leakage flux improve the control range and reduce the cost of production
Patent CA-1297014-C (CA)
Title: Multilamellar liposomes having improved trapping efficiencies
Inventor: CULLIS PIETER R
IPC: A61K9/127
Filed: 1986-10-07
Granted: 1992-03-10
Abstract: TLC 118 MULTILAMELLAR LIPOSOMES HAVING IMPROVED TRAPPING EFFICIENCIES ABSTRACT A multilamellar vesicle dispersed in an aqueous phase comprising an aqueous medium, a lipid concentration of at least about 50 mg/ml and a trapping efficiency of at least about 30 percent. The vehicle can be prepared by dispersing the lipid in an aqueous phase to form a multilamellar vesicle, rapidly freezing the multilamellar vesicle to obtain a frozen lipid-aqueous medium mixture, and warming the mixture to obtain a frozen and thawed multilamellar vesicle dispersed in an aqueous phase.
Patent CA-1321716-C (CA)
Inventor: COHEN MICHAEL L
IPC: G02C5/00
Filed: 1986-12-18
Granted: 1993-08-31
Abstract: ABSTRACT OF THE DISCLOSURE LENS REDUCING VISUAL NOISE FOR VDT VIEWERS       A lens is provided which can be worn, in the form of eyeglasses, for the reduction of visual noise and resul-ting eye strain for an observer of a visual display terminal.          The lens comprises a light transmitting plastic body having convex shaped outer surface away from the eye of the observer and a concave inner surface facing the eye of the observer.          The body is provided with, in combination, an ultraviolet absorber for at least substantially blocking the transmission of ultraviolet radiation incident upon the lens, a color dye for diminishing the transmission of radiation having a wavelength of between 500-600 nm, and a grey dye for re-ducing the transmission of visible light.   A corresponding method is also provided, along with a method and a kit for producing such a lens.
Patent CA-1312731-C (CA)
Title: Grinding machine for cylinders with devices for tracing and dimensional and surface checking
Inventor: CORALLO VALERIANO
IPC: B24B5/18
Filed: 1987-03-19
Granted: 1993-01-19
Abstract: ABSTRACT OF THE DISCLOSURE:           A grinding machine for cylinders with devices for tracing and dimensional and surface checking according to the invention which comprises a front bench provided with rests for supporting the piece being worked and a head and a counterhead for rotation and longitudinal restraint of the same.  A rear bench,  supports a carriage longitudinally moveable on it, in parallel to the axis of the piece, on which there is a wheelhead moveable on it perpendicularly to the axis of the piece bearing the grinding tool.  A third bench,  solid with the front bench for support and rotation of the piece, is located opposite the second bench, on which is moveably mounted, with axis parallel to the axis of rotation of the said piece, a measuring carriage supporting more instruments tracing the dimensions and surface of the piece,  operating both in contact and without contact with said piece.  The carriage is provided with motorized devices which are autonomous and independent of the movements of the carriage supporting the wheelhead, it being possible for the measurements of such instruments to be carried out at the same time as machining and in a way independent of it.
Patent CA-1309167-C (CA)
Inventor: LOVERIDGE JENNIFER C
IPC: G06T5/00
Filed: 1987-04-03
Granted: 1992-10-20
Abstract: ABSTRACT          A method for processing an image for the removal of spot defects comprising scanning and sampling the image to generate an array of pixel image values and constructing a corresponding array of pixel image values for the processed image by carrying out the following steps:          (a)  examining the image values of each pixel of a predetermined subset of pixels in a block surrounding a central pixel thereby determining the image value corresponding to the highest and lowest values in said predetermined subset of said block (Ahigh and Alow respectively), (b)  determining the image value corresponding to the central pixel of said block (Acentre), (c)  calculating either the ratio;                  R1=   or the ratio R2=   (d)  if the ratio is positive and its value is above a predetermined threshold value, writing an average value calculated on image values in the block to the element of the processed image array corresponding to said central pixel or, if not, writing the existing value (Acentre) to said element, and (e)  repeating steps (a) to (d) until every pixel has been processed as the central pixel.
Patent CA-1297348-C (CA)
Inventor: HAINES JOHN S
IPC: B63B3/22
Filed: 1987-06-17
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE:           The present invention is concerned with a boat hull. The boat hull includes a channel shaped bottom part having a keel and an undersurface having a plurality of corrugations which are located on each side of the keel thereby forming a plurality of alternating hills and valleys.  Each valley has a vertex and each corrugation is V shaped in section there-by providing an oblique line and a substantially horizontal line characterized in that in section the successive lines of slope formed by adjacent oblique lines of the corruga-tions form a multiplicity of angles of deadrise which are all greater than the substantially constant angle of deadrise formed by joining a line through a row of vertices in section.
Patent CA-1282366-C (CA)
Title: Method and apparatus for orientating can ends
Inventor: PITCHER TIMOTHY J
IPC: B65B35/56
Filed: 1987-07-17
Granted: 1991-04-02
Abstract: METHOD AND APPARATUS FOR ORIENTATING CAN ENDS                 ABSTRACT OF THE DISCLOSURE     Can ends having an off-centre aperture, are each orientated by a resiliently mounted peg which engages a surface of the can end and is rotated about a pitch circle for one complete revolution.  The peg seeks and enters the aperture and thereafter causes the can end to rotate with it until it stops at a position corresponding to the desired orientation of the can end.  The peg is then withdrawn from the aperture and the can end, supported in a carrier plate and is delivered to a moulding machine (not shown) in which a plastics closure is moulded into the aperture.
Patent CA-1294837-C (CA)
Title: Polyester film coating process and novel fibres with surface coating
Inventor: CHARMOT DOMINIQUE
IPC: C08J7/056
Filed: 1987-08-11
Granted: 1992-01-28
Abstract: Oriented polyester film composites comprise, on at least one face surface of the polyester base, a primer coating adapted to enhance the adhesion of topcoats thereto, said adhesive primer coating comprising a modified copolymer produced by aqueous phase radical polymerization of at least one acrylic monomer in the presence of a water-soluble or water-dispersible copolyester containing a plurality of sulfonyloxy groups.
Patent CA-1294960-C (CA)
Title: 7-deazaguanines as immunomodulators
Inventor: MALONE THOMAS C
IPC: A61P37/00
Filed: 1987-10-13
Granted: 1992-01-28
Abstract: ABSTRACT      The present invention is various 7-deazaguanines having activity as immunomodulators.  Also included are pharmaceutical compositions and methods of use thereof.
Patent CA-1298697-C (CA)
Title: Viscoelastic surfactant gravel carrier fluids
Inventor: NEHMER WARREN L
IPC: E21B43/26
Filed: 1987-10-21
Granted: 1992-04-14
Abstract: ABSTRACT OF THE DISCLOSURE A viscoelastic surfactant based gravel carrier fluid and corresponding gravel suspension slurry useful for well treatment and exhibiting improved control of complete gravel settling as a function of temperature comprising: water, an effective amount of an inorganic salt stabilizer (e.g., a potassium salt), an effective amount of an amine, amine salt or quaternary ammonium salt thickening agent (e.g., the surfactant N-methyl-N,N-bis (2-hydroxyethyl) rapeseed ammonium chloride), an effective amount of an organic salt (e.g., a salicylate) and gravel (sand). Control of the gravel settling as a function of temperature is achieved by selecting the concentration of the organic salt.
Patent CA-1312399-C (CA)
Title: Process for preparing capped polyoxyalkylene block polyethers
Inventor: OTTEN JAY G
IPC: C08G65/10
Filed: 1987-10-29
Granted: 1993-01-05
Abstract: ABSTRACT OF THE DISCLOSURE           A process is disclosed for the preparation of capped polyoxyalkylene block polyethers  by  sequential oxyalkylation of an initiator molecule with ethylene oxide and one or more higher alkylene oxide,  and subsequent capping.  According to the invention, the use of cesium hydroxide catalysis during the oxyethylation step permits to reduce the number of insaturation formed during both phases of the oxyalkylation and thus to obtain final products with an  exceptionally low hydroxyl number and correspondingly a high capping efficiency.
Patent CA-1325184-C (CA)
Title: Air filter and module to be used for building up such  a filter
Inventor: VAN WEERDEN JAN
IPC: F24F13/00
Filed: 1987-12-23
Granted: 1993-12-14
Abstract: A B S T R A C T                An air filter of which the dimensions may be easily adapted to the shape and dimensions of air ducts, especially air ducts of air condition equipments, comprises a number of frame shaped modules (1) made of plastics material. To each module a filter bag (2) is welded. The side faces (1a, b, c, d) of each module are provided with a system of ribs (5) or embossments (6). For joining modules substantially airtightly together a system of ribs or embossments on a side face of a module is connected to a complementary shaped system of ribs or embossments on the side face of another module by sliding movement or snap action. Preference is given to an embodiment whereby inclined side boundaries of interengaging complementary systems form a dovetail connection.
Patent CA-1298666-C (CA)
Title: Method to efficiently reduce the number of connections in a circuit
Inventor: BERMAN CHARLES L
IPC: G06F17/50
Filed: 1988-02-04
Granted: 1992-04-07
Abstract: A METHOD TO EFFICIENTLY REDUCE THE NUMBER OF CONNECTIONS IN A CLRCUIT                            Abstract A provided  logic  circuitry implementation  in  a  given technology includes n signals and m nodes.  A final logic circuitry implementation is produced therefrom which is the  functional  equivalent  of,   and  contains  fewer connections   than,   the   provided   logic   circuitry implementation.  A given one of the n signals is first processed,  and global information is computed for this signal.   A  graphical  representation  of  connections between the m nodes is derived from the computed global information.   A list of nodes that form a cut set is produced  from  the  graphical  representation,  and  an optimized logic circuitry implementation is provided as a function thereof.  Each of the remaining ones of the n signals are processed sequentially,  as above,  to form successive  optimized  logic  circuitry  implementations, with the processing of the nth signal resulting in the final logic circuitry implementation.
Patent CA-1306048-C (CA)
Title: Electromagnetic contactor with universal control
Inventor: ENGEL JOSEPH C
IPC: H01H47/00
Filed: 1988-02-05
Granted: 1992-08-04
Abstract: 68                  53,665 ABSTRACT OF THE DISCLOSURE An electrical motor contactor or controller is taught  in  which  control  signals  from  remotely  located pushbuttons  are  supplied  to  the  logic  portion  of  the controller  for the purpose of initiating or stopping a predetermined contactor or controller actions.  The  con-troller or contactor is of a universal nature adapted for the  acceptance  of  relatively  high  voltage  AC  control signals or relatively low voltage DC control levels.  For instance, a 120-volt AC signal may be provided or a 5-volt DC  level may be provided.  Because an AC signal may be provided to the controller, capacitive filter elements are utilized in the control circuit for filtering transients or AC components above a predetermined frequency which may be 60 Hz for example.  Furthermore, voltage regulator elements within the control circuit and the microprocessor input terminals within the control circuit represent relatively high impedance in the discharge path for the aforementioned capacitors.  Furthermore, regardless of whether DC control signals or AC control signals are supplied to the control circuit,  all values are converted to relatively low level DC values for utilization as inputs by the microprocessor. In those circumstances in which an AC control signal is utilized interruption of the AC control signal, such as may occur  when  a  closed  pushbutton  is  opened,  alerts  the microprocessor that a change in control state has taken place.  The capacitive elements which are used as filters may retain a charge thereacross for a significant portion 69                  53,665 of  time because  of  the presence  of  the high impedance discharge paths.  Therefore, the microprocessor in reading the control line may mistake the residual voltage on the charged capacitor for a positive indication of a control signal.  In order to avoid this, it is necessary to period-ically in  a  controlled manner  attempt to discharge the capacitive elements so that subsequent readings will not give a false indication.  In order to do this, the input terminals of the microprocessor are periodically provided with digital logical zero value which represents a near short circuit condition for the capacitors thus, discharg-ing the capacitive elements.
Patent CA-1306842-C (CA)
Title: Ceiling runner
Inventor: BURKSTRAND LOWELL E
IPC: E04B2/78
Filed: 1988-03-11
Granted: 1992-09-01
Abstract: IMPROVED CEILING RUNNER                       A B S T R A C T          A  ceiling  runner  comprised  of  an  elongated generally U-shaped channel member  having longitudinally spaced openings  in  its web,  each with one end portion shaped  and  sized  to  confine  a  transversely  arranged upright C-stud therein.   The remainder of the opening is of  such size and shape as  to permit the c-stud to be initially inserted therethrough with the web of its cross-section extending longitudinally of the web of the channel member and to be thereafter twisted about its longitudinal axis  to  a  relatively  transverse position to snap into place within said end portion,  the web of the channel member having a retaining tab at one side and a detent and camming surface at the opposite side of the opening to cause the C-stud to flex sufficiently to snap into said end portion and to retain the C-stud within said end por-tion once it has snapped into place.   In addition, the channel member has outwardly extending trim flanges at the free ends of its legs which extend beyond the wall-board only in a single plane parallel to the web and have no depending structure, so as to provide an acoustical angle appearance and a finished look along the line where the upper edge of the wall meets the ceiling.
Patent CA-1307721-C (CA)
Inventor: FERGUSON HUGO S
IPC: C22F1/00
Filed: 1988-03-28
Granted: 1992-09-22
Abstract: Abstract of the Disclosure The invention relates to a material (504), having adjacent regions of differing strength and ductility, that has been formed by rapidly deforming a suitable base metal (501) having a banded structure, such as illustratively a previously cold worked low carbon steel alloy, in order to generate a high rate of change in the internal energy of the base metal.  This energy change depressed the transformation temperatures of the base metal and induced an allotropic phase transformation to occur therein.  Specifically, prior to being deformed, the base metal is maintained at a fairly low temperature, e.g. at or near room temperature.  The tooling, preferably rolls, that is used to provide the deformation is maintained at a modestly elevated temperature.  Subsequent rapid deformation of the base metal causes an extremely high heating rate to occur at each surface thereof which, in turn, depresses the upper and lower on heating transformation temperatures at surface regions of the base metal and thereby causes the banded structure of the metal situated in these surface regions to transform into equiaxed grains.  If the heating rate is insufficient to raise the temperature of the core of the base metal, which contains banded grains, to a level that causes metal in the core to transform, then the core will retain its banded cold worked structure.  Consequently, the transformed surface regions (510, 510') will possess an equiaxed grain structure which provides increased ductility; while the core (511) of the material retains its banded (deformed) grain structure which provides high strength. Hence, the surfaces (512, 512') of the material become soft and ductile while the core possesses considerably higher amounts of hardness, yield and tensile strength than either surface.  This material advantageously exhibits both good workability and relatively high strength.  Alternatively, if the deformation rate is increased, such as by using small diameter rolls, in order to increase the bulk heating rate of the base metal and the appropriate thickness of the base metal has been chosen, then the entire base metal transforms into equiaxed grains.  In this case, the resulting material (404) possesses a ductility and hence workability similar to that of a fully annealed structure.