baber/WOPTO huggingface dataset:
Patent CA-1288565-C (CA)
Title: Alternating current arc for lensing system
Inventor: BORSUK LESLIE M
IPC: G02B6/255
Filed: 1988-01-05
Granted: 1991-09-10
Abstract: ALTERNATING CURRENT ARC FOR LENSING SYSTEM               ABSTRACT OF THE DISCLOSURE    A  system  is  provided for forming an end of an optical fiber  into  a  lens, which produces a lensed fiber having an especially  smooth  lens  surface  and high strength near the intersection  of  the lens and the rest of the fiber.  A lens is  formed  by  establishing a pair of electrodes on opposite sides  of a fiber end portion and establishing an arc between the  electrode tips for a sufficient current and time to melt the  fiber  end  portion  into  a  lens,  with  the arc being repeatedly  terminated  and  restarted at a rate of thousands of times per second.
Patent CA-1291612-C (CA)
Title: Injection molding process with reactive gas treatment
Inventor: BAUMAN BERNARD D
IPC: B29C45/17
Filed: 1988-01-21
Granted: 1991-11-05
Abstract: ABSTRACT    The present invention is a process for making shaped articles by injecting a thermoplastic or thermoset polymer into a mold cavity in which is maintained an atmosphere containing between 0.1 mole % and 50 mole % to F2 and at least 20 ppm O2 while said polymer is being injected into the mold.
Patent CA-1287257-C (CA)
Title: Matrix printer
Inventor: LIMBERGER ALOIS
IPC: B41J25/34
Filed: 1988-02-25
Granted: 1991-08-06
Abstract: ABSTRACT OF THE DISCLOSURE                      MATRIX PRINTER         A printer, and in particular a matrix printer, is provided with a carriage guide running parallel in front of a print-surface support for a print-head carriage (3).  The print-head carriage (3) supports a print head (4) and an ink-ribbon guide (8), disposed on the print-head carriage (3).   The print head (4) can be exchanged even by the operating personnel of the matrix printer by using a print head (4) which is exchangeable in a mechanical guide (6) and which is connected with an electric plug connection (7) and is thus removable and again insertable into the print-head carriage (3).  At least one tiltable ink-ribbon guide (8) is disposed on the print-head carriage (3) and serves as a locking means (9) for the inserted print head (4) on the print-head carriage (3).
Patent CA-1310975-C (CA)
Title: Process for aryl-diazide sulfonic acids
Inventor: BERNER PAUL
IPC: C07C303/22
Filed: 1988-03-23
Granted: 1992-12-01
Abstract: ABSTRACT        A process for the preparation of aryl-diazide-sulfonic acids by a series of sequential in-situ process steps.  The process comprises the nitrosation of a hydroxyarylsulfonic acid; conversion of the nitroso-derivative to a sulfamate which is then diazotized to the diazide.  Temperature and pH are maintained in predetermined ranges to maintain the reaction products in solution without the formation side-products or the need to isolate intermediates.  The process of the invention is part-icularly useful in the preparation of light-sensitive materials such as naphthoquinonediazide sulfonic acids which are used in the preparation of photoresist compositions.  The invention provides a high purity product at a high material efficiency, high equipment utilization, low effluent discharge, and reduced cost.
Patent CA-1307473-C (CA)
Title: Method and apparatus for removing carbon dioxide from air
Inventor: BROSE HARLAN F
IPC: B01D53/62
Filed: 1988-04-29
Granted: 1992-09-15
Abstract: Abstract Method and Apparatus For Removing Carbon Dioxide From Air A method and apparatus for removing carbon dioxide from a body of air by using a regenerative solid amine material arranged in beds 14(A-D) is disclosed.  Air is directed through a first bed to adsorb the carbon dioxide therefrom.  Steam is impelled by a compressor (24) into the first bed to desorb that bed, the steam forming a condensate on that bed.  The compressor then creates a vacuum in the first bed which vaporizes the condensate therein, dewatering the first bed so that it may be reused to adsorb carbon dioxide.  The compressor impels the vaporized condensate into a second bed to desorb the adsorbed carbon dioxide in the second bed.
Patent CA-1323794-C (CA)
Inventor: PEHR GEORGE O
IPC: A22C11/02
Filed: 1988-05-18
Granted: 1993-11-02
Abstract: Abstract A hornless stuffing apparatus and method wherein stuffing of casing from a shirred stick is accomplished by utilizing the shirred stick per se as a conduit for foodstuff.
Patent CA-1290527-C (CA)
Title: Multiple sprue bar stack mold
Inventor: SHEFFIELD JAMES
IPC: B29C45/12
Filed: 1988-06-10
Granted: 1991-10-15
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention provides in a stack mold with back to back centrally located mold cavities a multiple sprue bar arrangement including a pair of sprue bars balanced on opposite sides of the mold and a connecting bridge across the sprue bars for interfacing to a plastic injector.  At least one of the sprue bars provides a plastic flow path from the connecting bridge to the mold cavities.
Patent CA-1299906-C (CA)
Title: Apparatus and method for forming a clamshell assembly
Inventor: ALEXANDER GAROLD W
IPC: B31B50/44
Filed: 1988-06-17
Granted: 1992-05-05
Abstract: Abstract of the Disclosure An apparatus and method is provided for progressively converting each blank of sheet material in a stream of moving blanks into a clamshell assembly having interconnected lid and bottom portions.  The apparatus includes a female die assembly having first and second mold cavities, an upstream control system for aligning one portion of each blank at a lid-pressing station defined by the first mold cavity, and a downstream control system for aligning a remaining portion of each blank at a bottom-pressing station defined by the second mold cavity.  A male die assembly is provided for simultaneously forming a lid portion in one blank of sheet material and a bottom portion in an adjacent blank of sheet material.  In particular, during each pressing cycle, the male die assembly simultaneously presses an initial blank at the bottom-pressing station and a succeeding blank at the lid-pressing station to produce the equivalent of a whole clamshell assembly on a single stroke of the male die assembly.  This pressing cycle is repeated upon shifting the pressed blanks to a next downstream position to accomplish progressive conversion of each blank into a clamshell assembly.
Patent CA-1332669-C (CA)
Inventor: IIZUKA YOSHIO
IPC: C09K8/04
Filed: 1988-07-20
Granted: 1994-10-25
Abstract: ABSTRACT OF THE DISCLOSURE         A  composition  suited  for  addition  to  ground excavation stabilizing liquid is disclosed which is able to effectively prevent the deterioration of the stabilizing liquid due to seawater or the mixing therein of cement, or to prevent the putrefaction of the liquid by bacteria.  A ground excavation method for using the composition is also di closed. The composition which is suited for addition to excavation stabilizing liquid comprises: (1) a mono-valency salt (A) of unsaturated carboxylic acid  (co)polymer of polymerization degree 5,000 or less; and (2) a compound (B) selected from a group consisting of mono-valency aluminate, group II or III metal oxide,  and salt of a higher order compound.   The excavation stabilizing liquid composition comprises:  said composition suited for addition to excavation stabilizing liquid as described above, together with, inorganic clay (C), and as necessary,  a compound  (D)  selected from a group consisting of water soluble cellulose derivatives,  water soluble  starch  derivatives,  polysaccharides  and their derivatives.  The ground excavation method is a method for excavating the ground by excavator with staying or circulating the excavation stabilizing liquid composition in the excavated area.
Patent CA-1327431-C (CA)
Title: In-situ formation of soluble silicates from biogenetic silica in chemical fixation/solidification treatment of wastes
Inventor: CONNER JESSE R
IPC: C04B18/30
Filed: 1988-07-28
Granted: 1994-03-08
Abstract: In-Situ Formation of Soluble Silicates from Biogenetic Silica in Chemical Fixation/Solidification Treatment of Wastes Abstract Disclosed is the solidification and chemical fixation of liquid wastes using biogenetic primarily amorphous silica to the waste in the presence of a strong alkali in the waste which converts the biogenetic silica into a soluble silicate, and in the presence of a polyvalent metal ion in the waste which reacts with the soluble silicate to provide a cementitious product of the waste.  In the event there is insufficient strong alkali present in the waste to convert the biogenetic amorphous silica to a soluble silicate, and insufficient polyvalent metal ion in the waste to harden and form a cementitious product, amounts of these components as necessary can be added along with the biogenetic silica to the waste.  The resulting cementitious and chemically fixed waste can be left in place, for example to provide a land farm, or can be removed and broken up and used as a cover for land fills, various land applications, and farms, as well as other applications.
Patent CA-1331188-C (CA)
Inventor: SUNG RODNEY L
IPC: C07D207/452
Filed: 1988-09-30
Granted: 1994-08-02
Abstract: REACTION PRODUCT ADDITIVE AND ORI-INHIBITED           MOTOR FUEL COMPOSITION       (D#78,679-C1 -F) ABSTRACT     A novel gasoline-soluble reaction product, a concen-trate comprising the reaction product dissolved in a hydrocar-bon   solvent,   and   a   haze-free,   deposit-resistant   and ORI-inhibited  motor fuel composition comprising the reaction product is  described.   The reaction product is obtained by reacting a dibasic acid anhydride, a novel diamine containing block  copolymers  with  polyoxyalkylene  backbones,   and  a hydrocarbyl polyamine.  Motor fuel compositions containing the reaction  product  additive  of  the  instant  invention  are haze-free and show improved deposit-resistance and ORI control in comparison with motor fuels without the reaction product. Motor fuel compositions of the instant invention may optionally comprise  a  polyolefin polymer/copolymer  component  having  a molecular weight range of about 500-3500.
Patent CA-1315496-C (CA)
Inventor: AUGROS JEAN
IPC: B42C9/00
Filed: 1988-10-20
Granted: 1993-04-06
Abstract: 1. Method for uniting pre-printed sheets into a block, by pressing the head of the pile of sheets between the plates of a heating press, characterised in that : - the support used is a coated paper with a microporosity sufficient to retain, at the surface, the binding agents of the ink used, - a fluid ink with natural polymerisation in air is used for the printing, and - a pressure of 10 X 10**5 to 250 X 10**5 (100 to 250 daN/cm**2 ) is applied between the plates and to the region reserved for binding.
Patent CA-1311148-C (CA)
Inventor: KAWAKATSU AKIRA
IPC: G02B5/28
Filed: 1988-10-27
Granted: 1992-12-08
Abstract: ABSTRACT OF THE DISCLOSURE    A plurality of refractive layers of an optical interference film includes at least an inner metal layer having a prescribed refractive index and an outer-most layer of a metallic nitride compound having a refractive index higher than the inner metal layer for protecting the inner metal layer from oxidation, reduction, crystallization, etc.
Patent CA-1320501-C (CA)
Title: Process for the production of saturated neo-alcohols
Inventor: VERA-CASTANEDA ERNESTO
IPC: C07C29/17
Filed: 1988-11-23
Granted: 1993-07-20
Abstract: PROCESS FOR THE PRODUCTION OF    SATURATED NEO-ALCOHOLS              Abstract of the Invention A process for the gas phase hydrogenation of unsaturated trisubstituted monoesters to the saturated trisubstituted alcohols using a ZnaCubXcNidOe reduced catalyst.
Patent CA-1341613-C (CA)
Inventor: MCCAPRA FRANK
IPC: C07D521/00
Filed: 1988-12-30
Granted: 2011-05-10
Abstract: This invention discloses specific binding assays which use a chemiluminescent compound which has increased stability in aqueous solution. The chemiluminescent moiety an ester, thiolester or amide in which the ester, thiolester or amide linkage is between a heterocyclic ring or ring system containing a carbon atom to which the linkage is attached and an aryl ring or ring system. Other chemiluminescent moieties are disclosed which are characterized by a heterocyclic ring or ring system and a secondary substituent of the formula R n X-, with the ester, thiolester or amide linkage being between the heterocyclic ring or ring system and a leaving group. Compositions including and assay kits incorporating such chemiluminescent moieties are also disclosed. These assays are not as susceptible to hydrolysis as is the prior art compounds and show increased stability in aqueous solution.
Patent CA-1318293-C (CA)
Title: Article for storing optically readable and recordable disc devices
Inventor: HERR ARTHUR
IPC: B65D85/00
Filed: 1989-01-11
Granted: 1993-05-25
Abstract: ARTICLE FOR STORING OPTICALLY READABLE AND RECORDABLE DISC DEVICES                       ABSTRACT An insertable drawer member configured and dimensioned for receiving and storing digitally coded discs within an outer housing in a manner which ensures that information bearing areas of said discs are not damaged during insertion or removal therefrom, the insertable drawer member comprising:  a base at least partially defined by a pair of opposed side walls, having upon its surface a semicircular groove configured for the insertion of a portion of the digitally coded disc by pressure contact, wherein only a non-information-bearing surface portion of the disc is ever contacted by the drawer member.  The drawer member further comprises a lid integrally formed with the base and provided upon at least a portion of a front face thereof with a serrated gripping area to facilitate grasping and moving the drawer member to access the disc.  A lower edge of the lid is configured for contact relation with an abutting V-shaped upper edge portion of the outer housing.  The drawer member is additionally provided with mean  for retaining at least a portion thereof within the housing, which are operatively associated with corresponding means located upon an inner surface of the housing.
Patent CA-1338449-C (CA)
Inventor: KAFADAR KAREN
IPC: H04L27/22
Filed: 1989-01-12
Granted: 1996-07-09
Abstract: In the calibration of a vector demodulator, a statistical approach is used for the analysis and correction of received data.  The magnitude of each vector, defined by an (I,Q) pair in a received data signal, is examined. If each measured magnitude has a predetermined value, calibration is not necessary. However, if the vector magnitudes differ from this value, a number of samples of the data signal are used to define a linearly transformed circle.  The transformation parameters of this model are then calculated, for example using a least squares analysis. These parameters are related to the system errors to be corrected, and hence can be used to determine calibration factors which are employed to adjust the received information and produce actual data values.
Patent CA-1339698-C (CA)
Title: Wettable, flexible, oxygen permeable contact lens containing, block copolymer polysiloxane polyoxyalkylene backbone units
Inventor: SU KAI CHIANG
IPC: G02B1/04
Filed: 1989-02-24
Granted: 1998-03-03
Abstract: This invention relates to ophthalmic devices, such as contact lenses and intraocular implants, and particularly contact lenses of a block copolymer containing polysiloxane and polyoxyalkylene oxide units possessing an advantageous blend of desirable properties including a) high oxygen permeability, b) good wettability, c) flexibility and d) optical clarity, in the ocular environment of use. Further disclosed are the preparation thereof and methods of treating vision defects therewith as well as the polymers which may be used for the ophthalmic devices.
Patent CA-1337292-C (CA)
Title: Method of and compositions for reducing wear on surfaces subjected to frictional forces
Inventor: FODOR JOSEF
IPC: C10M173/00
Filed: 1989-05-16
Granted: 1995-10-10
Abstract: A method and composition for reducing wear on surfaces subjected to frictional forces.  The lubricating compositions can be applied in a carrier which may be organic or inorganic in nature.   They function by providing a regime in which multimolecular layers are adsorbed onto the surfaces to be protected, thus enabling comparatively thick protective films to be built up on the surfaces subjected to fractional wear.   The molecules having the property are essentially single or condensed unsaturated ring systems which comprise at least one six-membered unsaturated heterocyclic ring comprising at least one heterocyclic moiety which acts as a hydrogen acceptor and a hydrogen donor moiety.  If substituents are present they should not create steric hindrance and/or render the molecule so basic or acidic as to alter the steric geometry of the molecule as to prevent the interaction of the active groups.
Patent CA-1310698-C (CA)
Inventor: INAGAMI FUJIO
IPC: H04B1/16
Filed: 1989-05-16
Granted: 1992-11-24
Abstract: MOBILE TELEPHONE TERMINAL ABSTRACT OF THE DISCLOSURE A mobile telephone terminal driven by a battery, which terminal is mainly comprised of a processor unit and a logic LSI unit as a control part thereof. The processor unit handles first control functions which are not used frequently but which are complicated and operate at a high clock speed. The logic LSI unit handles second control functions which are used constantly and frequently at a low clock speed. The processor unit is activated intermittently on demand by the logic LSI unit.
Patent CA-1331605-C (CA)
Title: Process for the preparation of finely divided porous cellulose particles
Inventor: FRANCOTTE ERIC
IPC: C08J9/28
Filed: 1989-06-22
Granted: 1994-08-23
Abstract: Process for the preparation of finely divided porous cellulose particles Abstract of the Disclosure Process for the preparation of finely divided porous cellulose in the form of essentially spherical particles by formation of a suspension, in which an organic solution of a cellulose ester of aromatic or aromatic-aliphatic carboxylic acids containing a C5-C12alkanol is stirred into an aqueous solution of an anionic surfactant, the solvent is removed ant the particles are isolated and hydrolyzed under heterogeneous conditions. They are suitable as adsorbents in e.g. chromatographic processes.
Patent CA-1337766-C (CA)
Title: Derivatives of n-phenylpyrazoles
Inventor: BUNTAIN IAN GEORGE
IPC: A01N47/02
Filed: 1989-07-14
Granted: 1995-12-19
Abstract: An N-phenylpyrazole derivative of the formula:                          (I) wherein R1 represents cyano, nitro or halogen;          R2 represents a group R5SO2, R5SO, or R5S in which R5 represents alkyl, alkenyl or alkynyl unsubstituted or substituted by halogen;          R3 represents azido or hydrazino, or pyrrol-1-yl, pyrazol-1-yl, imidazol-1-yl, 1,2,4-triazol-4-yl, 1,2,4-triazol-1-yl, 1,2,3-triazol-1-yl, 1,2,3-triazol-2-yl, piperidino, pyrrolidino, morpholino or N-alkylpiperazino, which may be substituted by alkyl or phenyl; and R4 represents phenyl substituted in the 2-position by fluorine, chlorine, bromine or iodine; in the 4-position by alkyl or alkoxy unsubstituted or substituted by halogen, or fluorine, chlorine, bromine or iodine; and unsubstituted or substituted in the 6-position by fluorine, chlorine, bromine or iodine and pesticidally acceptable acid addition salts thereof possess arthropodicidal, nematocidal, anthelmintic and anti-protozoal activity.
Patent CA-1312045-C (CA)
Title: Brush and method of making same
Inventor: MCNAB DONALD
IPC: A46B3/04
Filed: 1989-07-20
Granted: 1992-12-29
Abstract: Abstract of the Disclosure A brush adapted for selective application of a flowable fluid to a workpiece -- and which includes a hollow head section, a plurality of bristles depending from the head section, and a fluid distribution channel defined by a flexible membrane and extending substantially axially within the radial interior of the bristles from the head section of the brush toward the free ends of the bristles -- is formed in its entirety of a heat-fusible synthetic material.  A tuft of synthetic material in filamentary form is inserted into a mold cavity and a heated die is moved into either direct contact with or closely proximate but predeterminately spaced apart relation with the mold for transferring sufficient heat to fuse the adjacent filament ends and form the brush head section.  A heated pin is inserted into and retracted from the mold cavity through the brush head section to form the distribution channel membrane.  In use, fluid fed to the brush head is delivered through the head section to the distribution channel and is discharged from the channel onto the bristles within the interior of the bristle tuft and proximate the bristle ends for facilitated distribution among the bristles and ready application to a workpiece by the user.
Patent CA-1323764-C (CA)
Inventor: TUCEK MIROSLAV
IPC: F25D3/11
Filed: 1989-09-29
Granted: 1993-11-02
Abstract: ABSTRACT OF THE DISCLOSURE A tunnel for freezing scrap is adapted to reduce consumption of volatile liquid cryogens. The tunnel is supported in an inclined orientation androtated to move scrap from a scrap inlet to a scrap outlet. A liquid cryogen is injected into the tunnel. The scrap inlet may incorporate a screw drive or othermechanism to reduce loss of gaseous cryogenic material. An exhaust conduit permits discharge of spent gaseous cryogen. The temperature of the spent gas is sensed and indicated, and the rate at which spent cryogen is exhausted and fresh cryogen is introduced is varied with the temperature. A discharge end of the tunnel contains an annular plate which prevents free discharge of liquid cryogen. A longitudinal rib attached to the interior surface of the tunnel adjacent the plate lifts scrap from liquid cryogen accumulating at the plate and drops the scrap through the central opening. The plate is inclined relative to the rational axis of the tunnel so that the opening in the plate is angled to properly receive the scrap. The rate of processing is controlled by varying both the rotational speed and inclination of the tunnel so that different degrees of tumbling actioncan be provided at a desired processing speed.
Patent DK-152060-C (DK)
Inventor: SUNTOLA TUOMO
IPC: H01L21/365
Filed: 1975-11-28
Granted: 1988-07-11
Abstract: A method is provided for growing highly oriented compound thin films on a substrate by subjecting the substrate to the vapor of a first single element which can react with the surface at a temperature sufficiently high for the reaction to occur which forms a single atomic layer of the first single element on the surface and then subjecting the thus formed surface with a first single element atomic layer thereon to the vapor of a second single element which can react with the first single element at a temperature sufficiently high for the reaction to occur so that a single atomic layer of the second single element is formed on the surface bound to the first single element. This procedure can then be repeated alternately subjecting the surface to the vapors of the first single element then to the second single element, etc. until the compound film reaches a desired thickness. There is further provided an apparatus for carrying out this method comprising a vacuum chamber with evacuating means, a support for supporting a substrate, sources for at least two vapors of two different single elements and operating means for providing on the substrate first a single atomic layer of one of the elements, and then a single atomic layer of the other of the elements.