baber/WOPTO huggingface dataset:
Patent NO-177004-C (NO)
Inventor: KESSELER KURT
IPC: C07C69/606
Filed: 1989-09-22
Abstract: 7-Substituted 3,5-dihydroxyhept-6-ynoic acids and the derivatives thereof of the formula I   <IMAGE> I  as well as the corresponding lactones of the formula II   <IMAGE> II  in which R and R DEG  have the specified meanings, a process for the preparation of these compounds, the use thereof as pharmaceuticals and pharmaceutical products are described. In addition, new intermediates for the preparation of the compounds of the formula I or formula II are described.
Patent NO-179473-C (NO)
Inventor: WERLE PETER
IPC: C02F1/50
Filed: 1991-12-02
Abstract: The direct dosing of aqueous solutions with acrolein as a microbiocide is problematic because of the associated laborious safety measures and the hitherto known use of reaction mixtures from the deacetalisation has proven not to be very economical. 
<??>According to the invention, aqueous solutions can be dosed in a simple, safe and economical manner with acrolein at a sufficient concentration level to be active as a biocide by cleaving acrolein acetals in the aqueous phase in the presence of a strongly acid deacetalisation catalyst into acrolein and the alcohol component, continuously removing the resulting acrolein from the deacetalisation mixture and transferring the acrolein into the aqueous solution to be dosed using an inert gas stream or a liquid jet pump with the aqueous solution to be dosed as the jet liquid.
Patent CA-2005102-C (CA)
Inventor: SOLOMON JAMES E
IPC: B61G1/32
Filed: 1989-12-11
Granted: 1996-05-21
Abstract: An  articulated  connector  for  railroad  cars comprises first and second connector members pivotally connected to each other at inner ends through a pin to permit vertical, rotational and horizontal pivoting of the  connector  members.    The  connector members  have opposed ends proportioned to each welded to a railroad car sill.  The articulated connector may be attached to a railroad truck which holds the connector and the ends of both connected cars.  Pin bearing block means are carried in the articulated connector and abut the pin.          Preferably, slack adjusting wedges are used to urge the pin  against  the  pin  bearing  block,  with  the  slack adjusting wedge means being laterally positioned in the connector.  Side apertures are then provided for access from the exterior to the slack adjusting wedge means.          Also, the inner end of the first connector may define a downwardly  facing,  spherical  face  which  rests  on  a spherical recess area defined in the second connector inner end, with the connecting pin extending horizontal-ly through the first and second connector member inner ends.   By this and other improvements,  improved wear resistance can be provided.
Patent CA-2008098-C (CA)
Title: Writing doll
Inventor: GARFINKEL HENRY A
IPC: A63H13/15
Filed: 1990-01-18
Granted: 1994-05-03
Abstract: ABSTRACT OF THE DISCLOSURE       A writing doll having a body portion, a head mounted on top of the body portion, a pair of legs protruding from the bottom of the body portion, and a pair of arms connected to the body portion.  The arms include a pair of hands with one hand formed to hold a stylus.  The writing doll includes a forearm motion control system mounted in at least one of the arms near the stylus hand for moving the stylus hand along an axis in a X direction.  A shoulder motion control system mounted in at least one of the arms near the body portion for moving the stylus hand along an axis in a Z direction, and an elbow motion control system mounted in at least one of the arms between the forearm and shoulder motion control systems for moving the stylus along an axis in a Y direction.  The doll also has a control means connected to each motion control system for providing control signals to control the movement of the motion control systems in each of the axis directions.          The writing doll can teach simple arithmetic as well as tell stories and draw pictures.
Patent CA-2013324-C (CA)
Inventor: DUMAS HERVE
IPC: A61K31/505
Filed: 1990-03-28
Granted: 2001-08-21
Abstract: La présente invention concerne des ptéridin-4(3H)-ones repré- sentées par la formule:    dans laquelle X est un atome d'oxygène ou un atome de soufre, Y est un atome d'hydrogène, un radical alcoyle inférieur; en particulier un radical méthyle, en position 6 ou un groupe hydroxyle en position 7,  R1 est un atome d'hydrogène, un radical alcoyle inférieur, un radical phényle substitué ou non, un radical benzyle, le groupe méthoxy- méthyle, le groupe acétyle, le groupe 2-acétoxyéthyle ou le groupe 2,2,2-trifluoroéthyle et R2 est un atome d'hydrogène ou un radical alcoyle inférieur en particulier un radical méthyle. La préparation de ces composés, les composés intermédiaires utilisés dans leur prépa- ration, ainsi que les compositions pharmaceutiques les renfermant sont aussi décrits. Applications de ces composés comme médicaments anti- allergiques.
Patent CA-2021777-C (CA)
Title: Method of producing lined mouldings
Inventor: NICOLAY ALBERT
IPC: B29L9/00
Filed: 1990-07-23
Granted: 1996-01-09
Abstract: A method of producing lined mouldings for internally covering the passenger compartments of motorcars is described, which comprise a temperature-independent, inherently stable support member of compressed wood fibre materials or the like containing binding agents and a lining on the visual side, firmly bonded to said support member. The lining, at least in sections, con-sists of a thermoplastically deformable material and is applied by coating the heated support member in an enclosed injection moulding tool via injection moulding. For this purpose, the support member is heated to 120 -180° Centigrade.
Patent CA-2027061-C (CA)
Title: Plasma arc torch having an hourglass-shaped nozzle
Inventor: CARKHUFF DONALD W
IPC: B23K10/00
Filed: 1990-10-05
Granted: 1993-11-09
Abstract: Abstract A nozzle for use with a plasma arc torch having a first gas flow within the nozzle for engaging an electrode and generating a plasma and a second gas flow in surrounding engagement to the outer surface of the nozzle is disclosed.  The nozzle includes an outer surface of substantially hourglass configuration in longitudinal cross-section so that the second gas remains in close contact with the outer hourglass surface of the nozzle to provide efficient heat transfer from the nozzle to the surrounding second gas flow.
Patent CA-2030607-C (CA)
Title: Method of maintaining an established connection in a mobile radio system comprising both analog and digital radio channels
Inventor: DAHLIN JAN ERIK AAKE STEINER
IPC: H04L25/02
Filed: 1990-03-28
Granted: 2001-08-14
Abstract: The invention relates to a method in a mobile radio system having both digital and analog radio channels. An object of the invention is that a connection established on a digital radio channel often shall be possible to maintain even when the time dispersion on available digital radio channels exceeds the designed maximum time dispersion of equalizers in receiving stations. According the invention equalizers in the receivers of the system may be designed for a smaller maximum time dispersion than the total time dispersion the whole system shall be capable to handle. Instead handover is made to an other channel when the time dispersion of a used digital channel tends to become too big. When an other digital radio channel with low time dispersion is available handover is preferably done to this channel. Alternatively or in the absence of such a digital radio channel handover is performed to an analog radio channel.
Patent CA-2035169-C (CA)
Title: Brake actuator with slack adjuster disabling mechanism
Inventor: MCKAY ALBERT A
IPC: F16D65/14
Filed: 1991-01-29
Granted: 2000-12-12
Abstract: A brake actuator having a service brake coupled to an emergency/parking brake through a lost-motion connection that allows the service brake to be applied independently of the emergency/parking brake includes a slack adjuster, the pawl of which is withheld from engagement with the teeth of the slack adjuster ratchet wheel by an interrupter vane whenever the emergency/parking brake is actuated, to thereby disable the slack adjuster.
Patent CA-2045136-C (CA)
Title: Resealable packaging material
Inventor: STRAUS STEVEN J
IPC: B32B27/00
Filed: 1990-01-05
Granted: 2002-03-19
Abstract: A machinable flexible packaging material capable of forming a seal that is reclosable at ambient temperature is made by applying a tacky adhesive and a thin skin layer onto a substrate, such as polyester film. Being thin, the skin layer fractures when the seal is opened, thereby allowing the adhesive to form a resealable interface at the seal area. However, since the adhesive is encapsulated in the material initially, the material may be used like other packaging materials in form, fill and seal machines.
Patent CA-2049563-C (CA)
Title: Production of b-hydroxyalkylamides
Inventor: SCHLAEFER FRANCIS WILLIAM
IPC: C07C231/02
Filed: 1991-08-20
Granted: 2003-01-07
Abstract: A method of preparing solid hydroxyalkylamides by reacting carboxylic alkyl esters with alkanolamines at controlled reaction temperatures, removing the alcohol byproduct, controlling the temperature of the reaction mixture to form a slurry, maintaining the slurry and recovering the solid hydroxyalkylamides.
Patent CA-2052687-C (CA)
Title: Gas and liquid contact body
Inventor: BRADLEY RANDALL S
IPC: B01J19/32
Filed: 1991-10-03
Granted: 2002-07-30
Abstract: This invention relates to a gas and liquid contact body comprising a plurality of adjacent, vertically oriented corrugated sheets where the corrugations extend downwardly at an oblique angle to the horizontal. The bottom portion of the corrugations is cut on an oblique angle along the width of the sheet to form a beveled bottom edge having peaks and valleys along the width of the sheet. Adjacent sheets to the contact body are oriented in front-to-front arid rear-to-rear orientation such that the corrugations of adjacent sheets cross at intersections of their apices, and bottom portions form a regular, ordered pattern when viewed from the bottom.
Patent CA-2059264-C (CA)
Title: Multistage evaporating system
Inventor: KIISKILA ERKKI
IPC: B01D1/26
Filed: 1990-06-07
Granted: 1994-06-28
Abstract: A thermal system includes a plurality of heat exchangers in series and the same number of flash tanks in series is interposed between two subsequent effects of a multiple effect evaporating system for surface black liquor. The liquor is indirectly heated in the heat exchangers by vapor produced by step-by-step expansion of the same liquor in the flash tanks and additionally by steam from an external source. To decrease the viscosity of the black liquor it is heated to a temperature of 190-200·C and retained in a reactor vessel for 10-20 minutes. Preferably the flash tanks and the heat exchange elements are positioned on top of each other within a shell to form an integral construction in which the vapor compartment of each flash tank is directly connected to the vapor compartment of a corresponding one of the heat exchange elements.
Patent CA-2065652-C (CA)
Title: Controlled release gastroresistant pharmaceutical formulations for oral administration containing bile acids and their salts
Inventor: MARCHI EGIDIO
IPC: A61K9/50
Filed: 1992-04-10
Granted: 1999-01-12
Abstract: Controlled release pharmaceutical formulations for oral administration  coated  by an  enterosoluble  gastroresistant film,  preferably  selected from gastroresistant  granulates, gastroresistant   tablets,   gastroresistant hard   gelatine capsules  containing  powders or granulates or  two  or  more tablets  or oily suspensions, gastroresistant  soft  gelatine capsules   containing  oily.  suspensions  and  hard  gelatine capsules  containing  gastroresistant  granulates or  two  or more  gastroresistant  tablets,   containing  therapeutically effective amounts of a mixture of bile acids and their  salts with  alkali  metals  or organic  bases,  process  for  their preparation  and therapeutic use thereof in the treatment  of biliary calculoses, biliary dyspepsias, biliary cirrhosis and chronic and cholestatic hepatopathies.
Patent CA-2067830-C (CA)
Title: Automatic mechanical centering device for endless belts moving on rollers
Inventor: FELICI ALBERTO
IPC: B24B21/14
Filed: 1992-05-01
Granted: 2001-02-27
Abstract: Automatic mechanical centering device for endless belts moving on a pair of rollers - a driving roller (RM) and a tension roller (1) -especially for an emery cloth belt (TS) moving on the cantilevered rollers (1, Rh1) of a belt sander (S) for wooden floors. The tension roller (1) is formed in two parts: a minor portion (3), close to a support (5) of the roller shaft (2), mounted - rotatable but not inclinable in respect of said shaft - onto an eccentric rotary sleeve (11), its part closest to said support (5) being of frustoconical shape; and a major portion (4), mounted revolving on a bush (12) coaxial to the roller shaft (2) and inclinable on a ball joint (13) but not rotatable in respect of said shaft. A unilateral contact ball constraint (15) is moreover provided between said sleeve (11) and said bush (12), and at least one spring (16) is provided to cause the inclination of said bush (12) in respect of the roller shaft (2) in the direction allowed by said constraint (15).
Patent CA-2068276-C (CA)
Title: Time slot switching function diagnostic system
Inventor: TATSUKI NOBORU
IPC: H04Q1/24
Filed: 1992-05-08
Granted: 1998-09-29
Abstract: According to this invention, a time slot switching function diagnostic system includes a first inserting circuit, a data memory, an address controller, a second inserting circuit, and a check circuit.  The first inserting circuit inserts path monitoring test pattern data into a specific on-line time slot of a unit frame consisting of N time slots.  The data memory writes and reads data input to the time slots.  The address control circuit supplies write and read addresses to the data memory.  The second inserting circuit feeds back an output from the data memory to an input side to repetitively insert the test pattern data in time slots sequentially following the specific time slot.  The check circuit extracts the test pattern data from an output corresponding to an Nth time slot of the data memory to check the test pattern data.
Patent CA-2072591-C (CA)
Title: Multiple frequency scanning in a selective call communication system
Inventor: SCHWENDEMAN ROBERT JOHN
IPC: H04B7/26
Filed: 1990-12-24
Granted: 2004-01-20
Abstract: An improved frequency scanning communications system (108, 109, 110, 111, 112) that dynamically optimizes the sequence and time ordering of available signalling frequencies: The system includes a selective call communication receiver (101, 102, 103, 104, 105, 106, 107) comprising means for scanning a list of predetermined channels (104) to classify said channels in a priority order and means for receiving information (103) from said channels in accordance with said priority order.
Patent CA-2083121-C (CA)
Title: Light emitting diode
Inventor: ZYDZIK GEORGE JOHN
IPC: H01L33/46
Filed: 1992-11-17
Granted: 1997-09-23
Abstract: This invention embodies a LED in which an optical cavity of the LED, which includes an active layer (or region) and confining layers, is within a resonant Fabry-Perot cavity. The LED with the resonant cavity, hereinafter called Resonant Cavity LED or RCLED, has a higher spectral purity and higher light emission intensity relative to conventional LEDs. The Fabry-Perot cavity is formed by a highly reflective multilayer distributed Bragg reflector (DBR) mirror (RB ~ 0.99) and a mirror with a low to moderate reflectivity (RT ~ 0.25-0.99). The DBR mirror, placed in the RCLED structure between the substrate and the confining bottom layer, is used as a bottom mirror. Presence of the less reflective top mirror above the active region leads to an unexpected improvement in directional light emission characteristics. The use of a Fabry-Perot resonant cavity formed by these two mirrors results in optical spontaneous light emission from the active region, which is restricted to the modes of the cavity. While the bottom DBR mirror reduces absorption by the substrate of that light portion which is emitted toward the substrate, the two mirrors of the resonant cavity reduce the isotropic emission and improve the light emission characteristics in terms of a more directed (anisotropic) emission.
Patent CA-2083165-C (CA)
Title: Device and method for treating facial lines
Inventor: BRANNAN ANN
IPC: A61Q19/00
Filed: 1992-03-27
Granted: 1996-07-09
Abstract: A device for correcting fine superficial facial lines which comprises a syringe fitted with a 31-33 gauge needle and an aque-ous suspension of noncrosslinked fibrillar atelopeptide collagen contained within the syringe barrel, the concentration of collag-en in the suspension being in the range of 10 to 50 mg/ml and the suspension exhibiting an extrusion plot in which there is a smooth substantially linear increase in force up to a substantially constant force in the range of 5 to 30 newtons.
Patent CA-2089781-C (CA)
Inventor: KYLLONEN GLENN F
IPC: B44D3/12
Filed: 1993-02-18
Granted: 2002-03-26
Abstract: A paint roller tray and lid having a seal for resealable air-tight mating of the tray with the lid. The lid has a paint roller handle holder so that when the lid is mated onto the tray the paint roller handle is detachably securable to the lid. The holder for holding a paint roller handle has a pair of resilient protrusions depending from the interior of the paint roller handle housing of the lid, the protrusions being in spaced apart relation so as to snugly receive therebetween a paint roller handle. The housing has contiguous sides extending upward from the upper surface of the lid and a roof extending between the contiguous sides. The protrusions depend from the roof into the housing, each of the resilient protrusions having therein a finger or thumb receptacle for insertion of a finger or thumb into the receptacle from the top of the housing whereby when a finger and a thumb are placed into the receptacles and a paint roller handle is detachably secured between the protrusions, the protrusions may be resiliently deformed so as to grip the paint roller handle between the protrusions.
Patent CA-2100054-C (CA)
Title: Self-raising cantilever-type work platform assembly
Inventor: ST-GERMAIN ANDRE
IPC: E04G1/20
Filed: 1993-07-07
Granted: 2006-03-28
Abstract: The self-raising work platform assembly is of the cantilever type in that it comprises a single tower, a sleeve surrounding and guided along said tower for up-and-down movement, power-operated raising means for said sleeve and a pair of horizontally-extending cantilever work platforms attached to said sleeve on opposite sides thereof. A second pair of oppositely-extending work platforms are disposed above the first pair and guy wires interconnect the work platforms.
Patent CA-2100458-C (CA)
Inventor: MEZIKOFSKY MERRILL R
IPC: A61K8/70
Filed: 1992-01-14
Granted: 1997-09-30
Abstract: Gel à raser auto-moussant amélioré constitué d'eau, d'un élément saponifiant hydrosoluble et d'un agent auto-moussant, en plus de polyisobutène hydrogéné en combinaison avec environ 0,0005 à 0,5 pour cent en poids d'un fluorosurfactant.
Patent CA-2103476-C (CA)
Title: Heat shrinkable end caps
Inventor: STEELE ROBERT E
IPC: F16L55/11
Filed: 1993-11-19
Granted: 1999-02-23
Abstract: Heat-shrinkable cap comprising a heat-shrinkable tube sealed at one end by heat recovering said end of tube over a dimensionally stable, solid plug.  The tube and plug are mutually weldable under heat, or are bonded together, thereby providing an air and water-tight seal at the sealed end.  The open end of the cap may be internally coated with adhesive to provide an air and water-tight seal over an object such as a cable-end when the cap is heat recovered over said object.
Patent CA-2104702-C (CA)
Inventor: CZORNIJ ZENON P
IPC: C08L71/02
Filed: 1993-08-24
Granted: 2000-04-04
Abstract: The present invention is directed to a pigment dispersant for use in coating compositions. The dispersant is the reaction product of a functionalized copolymer, a polyalkylene glycol monoalkyl compound to impart water soluble character to the copolymer, and a urea-containing pigment interactive substituent that enhances pigment dispersion in solution.
Patent CA-2106706-C (CA)
Title: Image forming method and apparatus
Inventor: SAITO RIE
IPC: H04N1/32
Filed: 1993-09-22
Granted: 1999-07-27
Abstract: An image forming apparatus includes an input unit for inputting image data representing an image, a synthesizing unit for synthesizing a predetermined information with the image represented by the image data, a forming unit for forming an image in accordance with the image data, a detecting unit for detecting a condition relating to an image forming by the forming unit, and a controlling unit for controlling the synthesis by the synthesizing unit based on the detection result of the detecting unit.  An image forming method is also disclosed.
Patent CA-2107452-C (CA)
Inventor: BETTS WILLIAM LEWIS
IPC: H04L5/14
Filed: 1993-09-30
Granted: 1998-09-29
Abstract: A method and apparatus for optimizing parameters selectable by an analog modem for operation on any bandwidth-constrained channel is provided. Through the addition of circuitry for performing an optimization process, the modem is configured for identifying the optimum bandwidth and maximum data rate for use over a selected bandwidth-constrained channel. In the process of optimizing the parameters for operation on the selected bandwidth-constrained channel, a measurement of the signal and noise spectrum present on the selected channel is determined. And from this measurement, the optimum bandwidth, maximum data rate for the transmission of data over the selected bandwidth-constrained channel and a modulus for performing a modulus conversion of the data for transmission are provided. The modem is then trained to operate using these optimized parameters for transmission of the data.
Patent CA-2117944-C (CA)
Title: Cryogenic temperature control system
Inventor: DE LANGAVANT BERNARD
IPC: F25D3/10
Filed: 1994-10-12
Granted: 1998-08-18
Abstract: Cryogenic cooling system for transport vehicles.  The cooling system includes an evaporator supplied with liquid CO2 from a fill tank.  A gas driven pump circulates liquid CO2 from the fill tank to the evaporator.  Working fluid is supplied to gas pump from the evaporator in the form of CO2 gas.
Patent CA-2119289-C (CA)
Title: Aluminum phosphate, process for its preparation and use thereof for the preparation of materials containing a binder and ceramic parts
Inventor: FOGEL WILLIAM
IPC: C04B35/63
Filed: 1994-03-17
Granted: 2001-11-20
Abstract: The present invention relates to a process for the preparation of an aluminium phosphate, characterised in that at least one aluminium compound is reacted with phosphoric acid or an aluminium phosphate, the reaction mixture not comprising anions of an inorganic acid other than phosphoric acid, and the suspension obtained is dried by atomisation (spraying) or lyophilisation. The invention also relates to the aluminium phosphate thus obtained and which is characterised in that it is amorphous and exists in the dry form. The phosphate of the invention can be used as binder, hardener or in the preparation of ceramic components.
Patent CA-2120087-C (CA)
Inventor: IMMEL DARRYL R
IPC: E02F9/28
Filed: 1994-03-28
Granted: 1997-03-25
Abstract: A digging tooth assembly has a base nose, a replaceable tooth tip mounted on the base nose and a pin securing the tip to the nose. The pin includes a locking head eccentric to the pin and a pad-like resilient member is placed between the head and the tooth tip. The locking head is rotated so that the resilient member is compressed to urge the tooth tip in a direction such that the tip is maintained in a nose-contacting position.