baber/WOPTO huggingface dataset:
Patent CA-2054116-A1 (CA)
Title: Latex for coatings having improved flexibility
Inventor: SRAIL RICHARD E
IPC: C09D5/08
Filed: 1991-10-28
Abstract: This invention relates to the synthesis of a latex which can be formulated into coatings having improved flexibility and good water resistance. Coatings of this type are particularly useful in roof coating applications because they offer excellent flexibility, excellent ultra-violet light resistance, and good water resistance. The subject invention more specifically discloses a process for producing a neutralized latex that is useful in the manufacture of water reducible coatings which comprises: (1) free radical aqueous emulsion polymerizing, at a pH of less than about 3.5, a monomer mixture which comprises, based on 100 weight percent monomers: (a) from about 30 to about 70 weight percent vinyl aromatic monomers, (b) from about 25 to about 65 weight percent of at least one alkyl acrylate monomer, (c) from about 1 to about 5 weight percent of acrylic acid, and (d) about 0.4 to about 3 weight percent methacrylic acid; in the presence of about 0.2 to 0.4 phm at least one sulfonate surfactant and in the presence of about 4 to 8 phm of at least one nonionic surface active agent having a hydrophile-lipophile balance number which is within the range of about 12 to about 20 to produce a latex; and (2) neutralizing the latex with ammonia to a pH which is within the range of about 7 to about 10.5 to produce the neutralized latex.
Patent CA-2056529-A1 (CA)
Title: Video-sync locked horizontal size regulation in projection light valve system
Inventor: BROWN DAVID W
IPC: H04N3/223
Filed: 1991-11-28
Abstract: ABSTRACT OF THE DISCLOSURE       The horizontal size of the raster in a light valve projection system is determined by the ratio by which a RF carrier is divided, wherein the frequency of the RF carrier is locked to a synchronization signal derived from the horizontal synchronization pulses of an externally-supplied video signal to be displayed.
Patent CA-2058634-A1 (CA)
Title: Window and door assemblies
Inventor: HARRISON IAN
IPC: E06B1/02
Filed: 1990-06-01
Abstract: A door or window assembly comprising a rigid first frame (1) defining an opening, and a second frame (9) adapted to be fitted into and close off the opening in the first frame (1), the first frame (1) being at least partly or wholly hollow and having a surface part with an opening (4) leading into a channel section (2) partly defined by side walls (6) of the said first frame (1), the second frame (9) including retaining means (12) of which a part can enter said channel section (2) through said opening (4) and thereafter securely engage the first frame (1) to prevent the second frame (9) from being withdrawn from the first frame (1). In a method of constructing a window or door assembly, the first frame (1) is incorporated within a building structure during construction thereof, the second frame (9) with or without an attached third frame (17) including retaining means (12) is offered up to the first frame (1) whereupon the retaining means (12) are actuated to securely affix the second frame (9) to the first frame (1).
Patent CA-2059589-A1 (CA)
Title: Low speed elevator car safety device
Inventor: JAMIESON ERIC K
IPC: B66B11/08
Filed: 1992-01-17
Abstract: LOW SPEED ELEVATOR CAR     SAFETY CIRCUIT  Abstact The present invention is directed to a safety circuit which detects when the elevator car is at least a predetermined distance away from a floor landing while a car door is open.  The safety circuit, upon detection of this condition, activates a solenoid located on a safety governor of the elevator car and/or the counterweight, causing safeties to engage, precluding further motion of the car and/or counterweight.  The safety circuit comprises the solenoid and a relay having a contact and a coil.  Given means for energizing the coil when the elevator car drifts beyond a predetermined distance with a door open, the contact will close, providing power to the solenoid for actuation.  The safety circuit preferably employs a relay which indicates whether the car door is open or closed, as well as relays which indicate whether various other system operational checks are satisfactory.  In order to check the functionality of the components upon which the safety circuit relies, the preferred embodiment provides additional circuitry to check the functionality of the door relay and the operational check relay, as well as circuitry to check the electrical integrity of and the power connections to the solenoid.  The safety circuit actuates the solenoid if a car door is open, the car is beyond the predetermined distance from the landing, and a machine tachometer indicates a non-zero velocity.  The predetermined distance from the landing is preferably the outer door zone.
Patent CA-2061333-A1 (CA)
Title: Regenerable non-venting cooler for protective suit
Inventor: ROEBELEN GEORGE J JR
IPC: B64D10/00
Filed: 1992-02-17
Abstract: Abstract Regenerable Non-venting Cooler For Protective Suit A life support back pack 14 for use during extravehicular activity in space incorporates a cooling apparatus 20 comprised of five panels 22 each of which include in layered fashion a LCG coolant heat exchange coil 32, a heat distribution plate 42, and a heat dissipation module 50A or 50B having an outer radiator surface 52.  Each module 50A houses a first phase change material 55A, for example hexadecane paraffin, and each module 50B houses a second phase change material 55B, for example tetradecane paraffin, which has a phase change temperature which is less than the phase change temperature of the first phase change material 55A.  The cooling apparatus 20 is equipped with a coolant heat exchange circuit provided with mode selection valves 84 and 86 which are operated by a controller 88 to selectively direct the LCG coolant to be cooled through the cooling apparatus in one of three operating modes.
Patent CA-2065530-A1 (CA)
Title: Saliva substitute
Inventor: ATTSTROEM ROLF
IPC: A61K38/47
Filed: 1992-04-07
Abstract: ABSTRACT OF THE DISCLOSURE A saliva substitute, the characteristic feature of which is that it comprises water-soluble linseed poly-saccharides. Said substitute is preferably in the form of an aqueous solution having a viscosity within the range of 1-30 mPa.s, most preferably 2-10 mPa.s.     The substitute can be prepared by extracting the polysaccharides from linseed by means of water or a water solution containing inorganic salts.     In addition to the fact that said substitute is useful as a saliva substitute it can also be utilized as a carrier for pharmaceuticals adapted for oral applications.
Patent CA-2066638-A1 (CA)
Inventor: CHANG YEONG-HO
IPC: C08G18/80
Filed: 1990-11-13
Abstract: Disclosed are thermosetting, powder coating compositions comprised of semi-crystalline polyesters and certain adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate which are readily curable at temperatures and times commonly used to cure (cross-link) powder coatings. When using equivalent curing conditions, the disclosed coating compositions exhibit a higher degree of cross-linking than do combinations of amorphous polyesters and the adducts of the 1,3-diazetidine-2,4-dione dimer of isophorone diisocyanate.
Patent CA-2070043-A1 (CA)
Title: Fabrication of electronically conducting polymeric patterns
Inventor: HOLDCROFT STEVEN
IPC: G03F7/038
Filed: 1992-05-29
Abstract: FABRICATION OF ELECTRONICALLY CONDUCTING POLYMERIC PATTERNS                   ABSTRACT OF THE DISCLOSURE           Thin films of soluble polythiophenes and oligo-thiophenes undergo cross-linking and insolubilization upon irradiation with UV/visible light.   Irradiation of thin polymer films through a photomask and subsequent develop-ment with solvent leaves a polymeric image of the mask. The resulting .pi.-conjugated polymeric pattern can be ren-dered electronically conducting by chemical oxidation.  The electronic conductivity of these films is high and is similar to that found for oxidized, non-irradiated films. Furthermore, the conductivity can be regulated over eight orders of magnitude by controlled oxidation.   Thus, the fabrication of electronically conducting, organic "wires" or "channels" using conventional semiconductor photolitho-graphic techniques can be achieved.
Patent CA-2071385-A1 (CA)
Title: Preparation of dialkyl(n-cyanoimido)carbonates
Inventor: OLIVER MICHAEL A
IPC: C07C261/04
Filed: 1992-06-17
Abstract: Preparation of Dialkyl(N-cyanoimido)carbonates Abstract A process for the preparation of dialkyl (N-cyanoimido)carbonates which comprises reacting a stoichiometric ratio of an alcohol with a cyanogen halide in the presence of an acid acceptor and in a non-aqueous solvent to form a dialkyl imidocarbonate, and reacting a cyanogen halide with a dialkyl imidocarbonate in the presence of a trialkylamine or a catalytic amount of a trialkylamine and an inorganic base.
Patent CA-2072084-A1 (CA)
Title: Process for the preparation of 1,4-bis(4-hydroxybenzoyl) benzene
Inventor: HACKENBRUCH JOACHIM
IPC: C07C45/54
Filed: 1990-10-25
Abstract: ABSTRACT OF THE DISCLOSURE:     Process  for the preparation of  1,4-bis(4-hydroxyben-zoyl)benzene A process for the preparation of 1,4-bis(4-hydroxyben-zoyl)benzene of the formula (I)                  (I) by rearranging diphenyl terephthalate of the formula (II)                 (II) in about 3 to about 50 parts,  relative to the diphenyl  terephthalate,  of  an anhydrous  organic solvent which is inert to the reactants, in the presence of about 30 to about 500 mol-% of a halo-alkanesulfonic  acid  (catalyst)  of  the  general formula (III) or (IV) Y(CnX2n)SO3H                        (III) Y(CnF2n)SO3H                          (IV), in which Y is a fluorine or hydrogen atom, and X is a fluorine and/or chlorine atom, with the proviso that at least one X is a fluorine atom, and n is an integer from 1 to 10, at temperatures of about 10 to about 200°C.
Patent CA-2076988-A1 (CA)
Title: Process for the preparation of a grain stabilized high chloride tabular grain photographic emulsion (i)
Inventor: MASKASKY JOE E
IPC: G03C1/16
Filed: 1992-08-27
Abstract: PROCESS FOR THE PREPARATION OF A GRAIN STABILIZED HIGH CHLORIDE TABULAR GRAIN PHOTOGRAPHIC EMULSION               Abstract of the Disclosure A process is disclosed of preparing an emulsion for photographic use comprised of silver halide grains and a gelatino-peptizer dispersing medium in which morphologically unstable tabular grains having {111} major faces account for greater than 50 percent of total grain projected area and contain at least 50 mole percent chloride, based on silver.  The emulsion additionally contains at least one 2-hydroaminoazine adsorbed to and morphologically stabilizing the tabular grains.  Protonation releases 2-hydroaminoazine from the tabular grain surfaces into the dispersing medium. Released 2-hydroaminoazine is replaced on the tabular grain surfaces by adsorption of a photographically useful compound selected from among those that contain at least one divalent sulfur atom, thereby concurrently morphologically stabilizing the tabular grains and enhancing their photographic utility, and the released 2-hydroaminoazine is removed from the dispersing medium.
Patent CA-2077422-A1 (CA)
Title: Motor-operated window cover
Inventor: JACOBS RUSSEL J
IPC: E06B9/32
Filed: 1992-09-02
Abstract: ABSTRACT OF THE DISCLOSURE           A motor-operated panel system includes a panel assembly consisting of an elongated flexible web formed of a plurality of different panels connected end-to-end for controlling the transmission of light, heat or air through a window and/or for producing different decorative scenes within a room.  The panel assembly is wound on substantially identical elongated and spacedly arranged hollow rollers including an upper roller which contains a reversible motor, gear train, magnetic brake and a position sensor totally within the interior of the upper hollow roller.  The position sensor serves to sense the absolute rotational position of the upper roller. The lower roller contains a torsional spring which is prewound to exert a pulling torque on the panel assembly, which torque is normally resisted by the magnetic brake in the upper roller.  The panel system is controlled remotely from a panel control which may be wall mounted, communicating with the panel system via a data bus. Several panel systems may be controlled from a single panel control and/or any panel system may be operable from more than one panel control.
Patent CA-2082068-A1 (CA)
Title: System and method for automatically interfacing call conventions between two dissimilar program units
Inventor: MURPHY DANIEL L
IPC: G06F9/44
Filed: 1992-03-03
Abstract: A jacketing system automatically interface dissimilar program units during program execution on a computer system. Means are provided for detecting a call for execution of a second program unit having a second call standard from a first program unit having a first call standard during execution of the first program unit on the computer system. A procedure descriptor is used in the code for the first program unit and it includes a signature that defines the call standard for each incoming call to the first program unit. A bound procedure descriptor is also used in the code for each outgoing call from the first program unit and it includes a signature that defines the call standard for the target program unit. Jacketing routines are driven by the descriptors in jacketing calls between the two program units.
Patent CA-2082361-A1 (CA)
Title: Fuel enhancing device
Inventor: PAULSON ROBERT L
IPC: C10G32/02
Filed: 1992-11-06
Abstract: ABSTRACT       A method of treating a liquid fuel prior to combustion to increase the combustion efficiency of the liquid fuel and to reduce un-combusted fuel emmisions the steps comprising:           passing said liquid fuel through three non-ferrous metal meshes as for a predetermined period of time, substantially simultaneously exposing said liquid fuel to an external low voltage direct current charge for a predetermined period of time to allow said liquid fuel to be charged, and sending said charged liquid fuel to be combusted, wherein said charged fuel upon vaporization thereof combusts with increased yield in relationto untreated fuel.
Patent CA-2085061-A1 (CA)
Title: Album a tranche renforcee
Inventor: DESMARAIS CLAUDE
IPC: B42D1/08
Filed: 1992-12-10
Abstract: L'invention concerne un album du type comprenant une couverture ayant des faces avant et arrière de même dimensions séparées par une tranche plane sur laquelle sont fixées une pluralité de pages ou de feuilles. Cet album est caractérisé en ce qu'il comprend également deux petits blocs rigides de forme allongée ayant chacun une longueur sensiblement égale à la largeur de la tranche, et chacun une extrémité plane et parallèle. Ces blocs sont respectivement fixés à même la tranche près des arêtes supérieure et inférieure de celle-ci du côté des faces avant et arrière de la couverture en haut et en bas de feuilles ou pages, de façon à s'étendre transversalement entre lesdites faces avant et arrière et ainsi renforcer la couverture sans pour autant interférer et gêner la pleine ouverture des feuilles ou pages. Ces deux petits blocs font de préférence partie intégrante d'une pièce rectangulaire mince et allongée de même forme et dimension que la tranche, qui peut être collée à même la tranche et sur laquelle les feuilles ou pages peuvent être fixées par soudure lorsque ladite tranche et les feuilles ou pages sont faites en matière plastique. Grâce à ces blocs, la couverture ne peut se déformer ou s'aplatir autour des lignes de pliure qui relient sa tranche à ses deux faces, même si les pages ou feuilles protégées par la couverture ne sont pas suffisamment nombreuses ou épaisses pour donner du corps à l'album.
Patent CA-2087694-A1 (CA)
Title: Fluorogenic and chromogenic .beta.-lactamase substrates
Inventor: QUANTE J MICHAEL
IPC: C07D501/36
Filed: 1993-01-20
Abstract: Chromogenic and fluorogenic substrates for .beta.-lactamase, methods for synthesis thereof and methods for detecting .beta.-lactamase in a sample are provided. The substrates are substantially colorless or substantially nonfluorescent .beta.-lactam compounds which include an electronegative leaving group. The leaving group comprises a carbamate, carbonate, thiocarbamate or thiocarbonate linkage and a fluorescent moiety or a moiety capable of producing a visually detectable colored product. Upon cleavage of the lactam ring by .beta.-lactamase, the leaving group is liberated and fluorescence or a colored product is produced.
Patent CA-2087846-A1 (CA)
Inventor: IMMELL WILLIAM F
IPC: B29C70/34
Filed: 1991-07-24
Abstract: A molded, composite, synthetic resin blade (30) for large diameter cooling fans is discussed wherein a stepped, synthetic resin foam core (68) is wrapped by a skin of fiberglass (70) with skin thickness decreasing towards a hub end (60) of the blade. A shank (66) is embedded in the foam core (68) and is adapted to be fastened to the fan hub (32). The foam core with fiberglass skin thereon is then molded under certain temperature and pressure conditions to compress the core.
Patent CA-2088393-A1 (CA)
Title: Method for stabilizing metals in wastewater sludge
Inventor: MOHN MICHAEL F
IPC: C02F1/54
Filed: 1993-01-29
Abstract: ABSTRACT          A method for treating the sludge from industrial wastewater streams which contain soluble metals by adding to the sludge an effective amount of a metal complexing agent sufficient to inhibit leaching of the metal from the sludge solids into the environment.  The metal complexing agents comprise diethylcar-bamate, dimethyldithiocarbamate, sodium trithiocarbonate the salts thereof or tolytriazole.
Patent CA-2093257-A1 (CA)
Title: Electro-pneumatic signal converter
Inventor: WIRTL JOHANNES
IPC: H02N2/04
Filed: 1993-04-02
Abstract: In an electro-pneumatic signal converter, the piezoelectric bending element is elastically pretensioned against at least three support bearings, of which one can be adjusted to a desired setting. This consists of a sleeve insert, the position of which is fixed relative to the other support bearings after the initial adjustment, for example, by being cemented, and a support pin that can also be moved subsequently in an axial direction relative to the sleeve insert, which can also be simultaneously in the form of a contact pin.
Patent CA-2093888-A1 (CA)
Title: Disinfectant compositions
Inventor: BENJAMINS PETER
IPC: A01N37/00
Filed: 1993-04-13
Abstract: C 7313(R) ABSTRACT            There is provided a concentrated disinfectant composition based on peroxy compounds, being a stable suspension which is suitable to provide an aqueous disinfectant composition with a pH in the range of from 2 to 6, said concentrated composition comprising: (a) 0.1 - 50 % by weight of a solid substantially water-insoluble organic peroxy acid; (b) 0.1 - 50 % by weight of a water-soluble organic acid; and having a pH in the range of from 2 to 4. Furthermore, there is provided an aqueous disinfectant composition, which can be prepared by diluting this con-centrated composition. These disinfectants are suitable for disinfecting objects and surfaces at locations where microbial contamination is of major concern, such as in hospitals and the food and drinks industry.                            ******
Patent CA-2095750-A1 (CA)
Title: Host communication message manager for a label printing system with data collection capabilities
Inventor: CRAIG GINA M
IPC: B65G61/00
Filed: 1993-05-07
Abstract: A host communication message manager of a local bar code data processing and printing system allows one or more host processing systems to communicate with the local system to control the maintenance of data including bar code data stored in the local processing system. The host communication message manager also allows one or more host processing systems to communicate with the local system to control the printing of data including bar code data stored in the local system on a bar code printer coupled thereto. The host communication message manager allows both a host processing system in the form of a main frame computer as well as a host processing system in the form of a hand held labeler with data collection capabilities to communicate with the local bar code data processing and printing system to provide an integrated system for data collection, bar code granting and labeling.
Patent CA-2095983-A1 (CA)
Inventor: HAMON SERGE
IPC: G06M1/02
Filed: 1993-05-11
Abstract: DISPOSITIF POUR ELIMINER LA BUEE FORMEE SUR LA FACE INTERIEURE D'UNE VITRE DE TOTALISATEUR Dispositif pour éliminer la buée formée sur la face intérieure d'une vitre (12) de totalisateur comprenant un patin (44) circulaire guidé en translation par une glissière (48) et muni d'une gouttière plaquée sur la face intérieure de la vitre (12) de manière à éliminer la buée par capillarité; le patin (44) est mis en mouvement par la rotation d'une biellette (36) actionnée par un bouton de commande manuelle (30). Application à la lecture des compteurs d'eau du type sec ou exta sec. L'abrégé est relatif à la figure 3.
Patent CA-2098969-A1 (CA)
Title: Procede microbiologique pour eliminer les dechets organiques
Inventor: HIGA TERUO
IPC: C12S9/00
Filed: 1993-06-22
Abstract: Méthode pour éliminer des déchets organiques à l'aide de microorganismes; méthodes utilisant les produits de l'élimination de ces déchets pour accélérer la croissance des plantes, détruire ou faire fuir les insectes parasites, améliorer le sol, désodoriser l'eau et en améliorer la qualité; compositions employées dans ces méthodes. Ladite méthode microbiologique d'élimination de déchets organiques comprend les étapes suivantes : i) amener une matière organique usée en contact avec ii) au moins 5 espèces de microorganismes, chacun étant choisi parmi 5 groupes constitués d'actinomycètes, de bactéries phototrophes, de bactéries lactiques, de moisissures et de levures; les microorganismes a) sont acido-résistants, b) peuvent produire de l'acide lactique, c) ne peuvent pas produire d'acide butyrique, d) ne sont pas pathogènes, e) ont une valeur antagoniste de 50 ou plus.
Patent CA-2100326-A1 (CA)
Title: Advanced polymer and wood fiber composite structural component
Inventor: DEANER MICHAEL J
IPC: E06B3/22
Filed: 1993-07-12
Abstract: The invention relates to an advanced composite structural component, made of a polymer and wood fiber composite material, in the form of an extruded or injection molded thermoplastic member in residential and commercial structures. Preferably the structural component is used in a window or a door. Common window and door manufacture require the production of linear members with specifically designed cross-sectional shapes to form both the window frame structural elements and movable sash components. The structural elements must possess sufficient strength to permit the manufacture of a structurally sound window unit that can be readily installed into a rough opening and can cooperate with the wall structure to maintain structural integrity. The window or door should have sufficient strength to survive day-to-day use and abuse and to maintain window or door structural integrity after installation. The structural component has a hollow cross-section with at least one structural web and at least one fastener web formed within the component. The exterior of the extruded component is shaped and adapted for installation in a rough opening and to support window and door components. Such structural components have unique advantages and can be assembled in a thermoplastic weld process. Welding is performed by heating and fusing the heated surfaces together to form a welded joint having superior joint strength characteristics.