baber/WOPTO huggingface dataset:
Patent CA-2038944-A1 (CA)
Title: Apparatus for cleaning the rim of a rounded object
Inventor: CROFT GEOFFREY G
IPC: B08B1/04
Filed: 1990-08-08
Abstract: ABSTRACT  Title: Apparatus for cleaning the rim of a rounded object.   An apparatus (10) for cleaning the rim of a rounded object (11) comprising means (16,17,19) to support the object (11), a cleaning tool (30) movable into engagement with the rim of the object (11) and means (21,22) to cause relative rotation between the rounded object (11) and the cleaning tool (30), the support means comprising a pair of rollers (16,17) one (17) being mounted generally above the other (16), and a third roller (19) carried by a movable arm (15) which is movable from a first position (A) in which the object (I l) is out of engagement with the pair of rollers (16,17), to a second position (B) when the object (11) is engaged with the pair of rollers (16,17) and the third roller (19), in a generally upright orientation with its central axis (24) located in a generally horizontal plane (25).
Patent CA-2038947-A1 (CA)
Title: Liquid lubricants from alpha-olefin and styrene copolymers
Inventor: WU MARGARET M
IPC: C10M107/12
Filed: 1990-09-05
Abstract: Alpha-olefins such as 1-decene are copolymerized with vinylaromatic monomers, especially styrene or the alkylstyrenes, to produce liquid lubricant oligomers having a broad range of viscosities, high viscosity index (VI), improved thermal stability and additive solubility characteristics. The lubricant oligomers are random copolymers containing recurring units of 1-alkene and vinyl aromatic monomer in mole ratios between 2:1 and 500:1, but preferably between 5:1 and 100:1 and more preferably from about 10:1 to 50:1.  The recurring 1-alkene units of the copolymer have a branch ratio of less than 0.19, indicative of a poly 1-alkene segment of the copolymer chain or backbone that is essentially linear. The copolymerization catalyst is a reduced Group VIB metal catalyst on porous support, preferably reduced chromium oxide on a silica support.
Patent CA-2042110-A1 (CA)
Inventor: KAELSCH INGO
IPC: B64G1/26
Filed: 1991-05-08
Abstract: ABSTRACT OF THE DISCLOSURE Thrusters  in a propulsion system of  a spacecraft spin stabilized by rotation about a spin  axis are fired to  increase  the orbital velocity of the spacecraft  in  a maneuver direction along the orbital velocity vector. The propulsion   system   comprises   a   pair of   thrusters juxtaposed on a common support at the periphery of the spacecraft.  The thrusters have thrust axes perpendicular to the spin axis and offset relative to a transverse axis of  the spacecraft by equal and opposite offset angles. Each thruster is  fired separately and alternately when its thrust axis is substantially parallel to the maneuver direction while the spacecraft is rotating about its spin axis.
Patent CA-2042905-A1 (CA)
Title: Indole derivatives
Inventor: OKADA SATOSHI
IPC: A61K31/40
Filed: 1991-05-17
Abstract: ABSTRACT        Compounds of the formula:       wherein R1 is carboxy or protected carboxy, R2 is hydrogen, lower alkyl or halogen R3 is aryl or ar(lower)alkyl, each of which may have suitable substituent(s), or a group of the formula:       in which   is heterocyclic group containing nitrogen atom, and n is 0 or 1, A is lower alkylene which may be substituted by oxo or lower alkenylene, Q is carbonyl or lower alkylene,        or      in which R4 is hydrogen or lower alkyl, and R5 is hydrogen, lower alkyl or Y-Z-R3, Y is bond or lower alkylene, Z is lower alkylene, -O- or  , in which R6 is hydrogen, lower alkyl, ar(lower)alkyl which may have suitable substituent(s) or amino protective group, and pharmaceutically acceptable salts thereof.  The process of producing these compounds, pharmaceutical compositions containing same, the treatment of testosteron 5.alpha.-reductase-mediated disease and the preparation of the compositions are also disclosed. The invention is useful for treating diseases such as alopecia, acnes, prostatism, and the like.
Patent CA-2044819-A1 (CA)
Title: Heat exchanger assembly
Inventor: KERKMAN WILLIAM J
IPC: F28F3/08
Filed: 1991-06-17
Abstract: A heat exchanger is provided for exchanging heat between two fluids such as a coolant and oil, the heat exchanger includes a header plate having a central opening defined by a column integrally formed with the header plate together with a radial opening. A plurality of heat exchange units are stacked on the header plate about the column.
Patent CA-2045768-A1 (CA)
Inventor: SPEARS RICHARD L
IPC: B24C9/00
Filed: 1991-06-26
Abstract: A media particle size separating apparatus arid method are disclosed for use with a slurry blast cabinet. The system is capable of continuous operation so that under sized blast media particles and fines can be separated out of the slurry along with debris from the blasting operation on a continuous basis. An upwardly open partition divided hopper receives spent slurry from the blasting cabinet to flow through at least two chambers in the hopper to a pump returning the slurry and sized media to the blasting cabinet and nozzles therein. Unusable fines collected in one chamber of the hopper are drawn off through a drain valve.
Patent CA-2046772-A1 (CA)
Title: Carbon dioxide production from combustion exhaust gases with nitrogen and argon by-product recovery
Inventor: KRISHNAMURTHY RAMACHANDRAN
IPC: C01B32/50
Filed: 1991-07-11
Abstract: The present invention is directed to a method for producing carbon dioxide and nitrogen from combustion exhaust gas containing less than about 10% oxygen by weight which comprises the steps of (a) treating the exhaust gas to remove particulate matter, (b) compressing the exhaust gas to a pressure in the range from about 25 psia to about 200 psia, (c) purifying the exhaust gas to remove trace contaminants, (d) separating the exhaust gas to produce a carbon dioxide rich fraction and a nitrogen rich fraction, (e) liquifying the carbon dioxide rich fraction and distilling off volatile contaminants to produce pure carbon dioxide, (f) purifying the nitrogen rich fraction to remove contaminants, and (g) cryogenically fractionally distilling the nitrogen rich fraction to produce pure nitrogen. In another embodiment, the invention is directed to a method for producing carbon dioxide, nitrogen, and argon from a combustion exhaust gas. The combustion exhaust gas in the present invention may be obtained from an ammonia plant reformer furnace and the nitrogen produced may be employed as a synthesis gas in the ammonia reactor.
Patent CA-2048091-A1 (CA)
Title: Adjustable curve mascara brush
Inventor: KINGSFORD TED
IPC: A46B1/00
Filed: 1991-07-29
Abstract: ABSTRACT OF THE DISCLOSURE           A mascara applicator having a brush which can be adjusted by a user from straight to curved comprising a wand within which is slidably disposed an adjusting rod connecting to a manipulating device within the applicator handle.   The rod is extendable into an applicator head on the end of the wand and may  be  straight  so  as  to  straighten  a precurved applicator or curved so as to impart curvature to a straight applicator.
Patent CA-2049390-A1 (CA)
Inventor: HARUTA JUNICHI
IPC: C07K5/065
Filed: 1991-08-16
Abstract: ABSTRACT       Peptide derivatives of the following formula   wherein R1 and R2 are the same or different and respectively mean hydrogen atom, a C1-5 alkyl group or phenyl, X is -NH-or -CH2-, Y is hydrogen atom, a benzyl group wherein phenyl may be substituted by hydroxyl, or a C1-5 alkyl group which may be substituted by -SH, -SR3, -SO2R3, -CONH2,   , -OR6 or-      (wherein R3 means a C1-5 alkyl group or an aryl group, R4 and R5 are the same or different and respec-tively mean hydrogen atom, a C1-5 alkyl group or an amino protecting group and R6 is hydrogen atom, a C1-5 alkyl group or a hydroxyl protecting group), Z is -CH2- or -S-, and n is 1 or 2, provided that when X is -NH-, R1 and R2 are not hydrogen atoms at the same time, pharmaceutically acceptable acid addition salts thereof and pharmaceutical use thereof.    Since the compounds of the present invention possess stronger actions on central nervous system, they are of use as a therapeutic medicament for central nervous disorders.
Patent CA-2052425-A1 (CA)
Title: 2-(3-pyridyl)-carbapenem antibacterial agents
Inventor: GUTHIKONDA RAVINDRA N
IPC: C07D477/00
Filed: 1991-09-26
Abstract: TITLE OF THE INVENTION 2-(3-PYRIDYL)-CARBAPENEM ANTIBACTERIAL AGENTS            ABSTRACT OF THE DISCLOSURE          Carbapenems of the formula   are useful antibacterial agents.
Patent CA-2052857-A1 (CA)
Inventor: PRICE THOMAS L
IPC: B02C23/36
Filed: 1991-10-07
Abstract: A jaw crusher for crushing material that is at least partially submerged in liquid without causing particulate and noise contamination of the workplace while in operation. The crusher, including a fixed jaw, a swing jaw, a jaw-stroke hydraulic cylinder, a master hydraulic cylinder and a motive power unit includes detection and protection for blockages and overloads while minimizing maintenance requirements.
Patent CA-2053316-A1 (CA)
Inventor: PERSSON ALGY
IPC: C03B33/10
Filed: 1990-04-19
Abstract: A method for producing a glass knife, in which a flat glass plate (51) is divided by breaking along a dividing line (23) scratched on said plate. The plate is placed on two tower supporting pins (9.  10), positioned by the use of means (7. 8) cooperating with the side edge surfaces of the glass plate. and is fixed by means of two upper supporting pins (17. 18) which are made to engage the upper face of said plate. Each pair of supporting pins has a line of symmetry perpendicular to the line of symmetry of the other pair, one line of symmetry coinciding with the dividing plane.  Before the glass plate is broken by moving the supporting pins towards one another, the positioning means (7, 8) are, at least partially, disengaged from the glass plate, such that essentially only the forces deriving from the supporting pins act upon the glass plate during the breaking thereof.
Patent CA-2055806-A1 (CA)
Title: Air management system for a controlled atmosphere container
Inventor: COFFIELD KELLY
IPC: A01F25/00
Filed: 1991-11-19
Abstract: ABSTRACT OF THE DISCLOSURE         A compressor provides a supply of compressed air through a line to the input of a separator unit.  A heat exchanger is mounted along the line, and a duct directs a coolant across the heat exchanger.  A thermal sensor in the line controls the amount of coolant which flows through the duct to control the temperature of the compressed air in the line.
Patent CA-2061020-A1 (CA)
Inventor: REGIMAND ALI
IPC: G01N23/02
Filed: 1992-02-11
Abstract: Method and apparatus for determining the asphalt content of a bituminous paving mix wherein Marshall plug samples (21, 22) of the bituminous paving mix are subjected to a neutron source (24) and the neutrons that are thermalized by hydrogen nuclei present in the Marshall plug sample are detected and counted to provide an indication of the asphalt content of the sample.  A neutron moderating substance, such as a polyethylene sample holder (19) having receptacles for closely fitting the Marshall plug samples, is included with the sample pan (17) to increase the number of thermalized neutrons resulting from the interaction of neutrons with hydrogen nuclei present in the sample.
Patent CA-2061488-A1 (CA)
Title: Combination of active substances comprising a sydnone imine and a hirudin
Inventor: SCHOENAFINGER KARL
IPC: A61P7/02
Filed: 1992-02-19
Abstract: ABSTRACT         A combination of active substances comprising a sydnone imine and a hirudin is disclosed.  In this combination, a mutual enhancement of antithrombotic effects of the components is observed.  It is thus possible to achieve a very strong therapeutic effect even at dosages at which neither component alone has an effect.  The combination according to the invention can be used in humans to control or prevent disorders of the cardiovascular system, in particular as antithrombotic medicines.
Patent CA-2063651-A1 (CA)
Title: Apparatus and method of use for a photosensitizer enhanced fluorescence based biopsy needle
Inventor: VARI SANDOR G
IPC: A61B18/20
Filed: 1992-03-20
Abstract: Apparatus And Method Of Use For A Photosensitizer Enhanced Fluorescence Based Biopsy Needle Abstract A method and apparatus is disclosed for the instant intraoperative detection and biopsy of metastatic cancer using fluorescence spectroscopy.  A photosensitizing agent selectively retained by cancerous tissue is administered prior to surgery.  A fiberoptic probe integrated with a biopsy device illuminates the examined tissue and causes fluorescence which  is  recorded by a  spectrograph  and plotted as a spectral curve.  The intensity ratio (S1/S2) for the fluorescence from the photosensitizing agent (S1) and  autofluorescence  (S2)  for the  examined tissue  is compared with the intensity ratio at the same wavelengths for primary tumor and normal tissue.  Tissue that displays an intensity ratio different from that of normal tissue can  immediately  be  analyzed  for  the  depth  of  tumor involvement and then excised for histological examination using the biopsy device.
Patent CA-2064329-A1 (CA)
Title: Molding machine
Inventor: AMANO OSAMU
IPC: B29C45/48
Filed: 1992-03-27
Abstract: ABSTRACT OF THE DISCLOSURE      A molding machine is equipped with a screw which is intermittently and/or periodically rotatable to plasticate a resin.  The screw is a barrier flight screw having a main flight and an auxiliary flight.  The main flight and auxiliary flight define a melt channel and a solid channel.          The depth of the latter is deeper than 50% of the former.
Patent CA-2064674-A1 (CA)
Inventor: STERN SIDNEY S
IPC: F25J3/08
Filed: 1992-04-01
Abstract: 0073M                                           Dkt. No. 91A201 ABSTRACT     The present invention provides an apparatus and method for producing ultra-high purity nitrogen.   In accordance with the method and apparatus,  air  is  rectified  to  produce  a tower overhead  comprising  high  purity  nitrogen  rich  in  light elements,  such  as  neon,  helium  and  hydrogen. The  tower overhead is then partially condensed within a condenser and separated  into  liquid  and  vapor  phases  within  a  phase separator.  The liquid phase is lean in the light elements and the vapor phase is rich in the light elements.   The liquid phase is removed from the bottom of the phase separator and is introduced into the column as reflux.  As the reflux drops from tray to tray it is stripped of a the light elements.  A product stream containing ultra-high purity nitrogen is withdrawn as a liguid from the column after suitable stripping of the reflux. The product stream can be further purified by stripping the product stream within a stripper column.
Patent CA-2068066-A1 (CA)
Title: Herpesvirus particles and vaccine
Inventor: CUNNINGHAM CHARLES
IPC: C07C323/00
Filed: 1992-05-06
Abstract: In addition to virions, herpesvirus-infected cells produce non-infectious particles, termed L-particles, which consist of tegument surrounded by envelope but lack the nucleocapsid.      L-particles of a herpesvirus can be prepared substantially free of infectious virions, e.g. by allowing an appropriate temperature-sensitive mutant to replicate at its non-permissive temperature, and such L-particles are useful as a component of a vaccine against the herpesvirus. They can also be prepared to contain a foreign protein or peptide, by use of a recombinant herpesvirus.
Patent CA-2068193-A1 (CA)
Title: Valve stem flex lip backseat
Inventor: HOLLIDAY DAVID G
IPC: F16K41/14
Filed: 1992-05-07
Abstract: ABSTRACT OF THE DISCLOSURE        A metal-to-metal backseating system for fluid flow control valves, comprising a flexible annular backseat element extending radially from a valve stem or closure element to sealingly engage a valve bonnet surface, and an annular backup for the backseat element.
Patent CA-2068561-A1 (CA)
Title: O-aryl, o-alkyl, o-alkenyl and o-alkynylmacrolides having immunosuppressive activity
Inventor: GOULET MARK
IPC: C07D498/18
Filed: 1992-05-13
Abstract: TITLE OF THE INVENTION O-ARYL, O-ALKYL, O-ALKENYL AND O-ALKYNYLMACROLIDES HAVING IMMUNOSUPPRESSIVE ACTIVITY            ABSTRACT OF THE DISCLOSURE         O-Aryl, O-alkyl, O-alkenyl and O-alkynyl-macrolides of the general structural Formula I:       have been prepared from suitable precursors by alkylation and/or arylation at C-3" and/or C-4" of the cyclohexyl ring.  These macrolide immunosup-pressants are useful in a mammalian host for the treatment of autoimmune diseases, infectious diseases and/or the prevention of rejection of foreign organ transplants.  In addition, these macrolide immunosuppressants are useful in the topical treatment of inflammatory and hyperproliferative skin diseases and cutaneous manifestations of immunologically-mediated illnesses.  Also, these macrolides are useful in the treatment of reversible obstructive airways disease, particularly asthma; as hair revitalizing agents, especially in the treatment of male pattern alopecia or alopecia senilis; in the reversal of multidrug resistance of tumor cells; in treatment of inflammation of mucosa and blood vessels, gastric ulcers, vascular damage, ischemic bowel disease, inflammatory bowel disease, necrotizing enterocolitis, intestinal lesions associated with thermal burns; in the treatment of cytomegalovirus infection; and in the treatment of idiopathic thrombocytopenic purpura and Basedow's disease.
Patent CA-2070127-A1 (CA)
Title: Molybdenum recovery
Inventor: MEYER ROBERT A
IPC: C07D301/19
Filed: 1992-06-01
Abstract: MOLYBDENUM RECOVERY (Docket No. 80,999-F) ABSTRACT OF THE DISCLOSURE    An epoxidation reaction product formed by the molyb-denum catalyzed reaction of propylene with tertiary butyl hydroperoxide to provide propylene oxide and tertiary butyl alcohol is separated by distillation into a propylene frac-tion, a propylene oxide fraction, a tertiary butyl alcohol fraction and a heavy liquid distillation fraction composed primarily of tertiary butyl hydroperoxide, tertiary butyl alcohol, dissolved molybdenum catalyst, and impurities including lower aliphatic C1-C4 carboxylic acids, and the heavy liquid distillation fraction is saturated with ammonia to precipitate the molybdenum therefrom for recovery.
Patent CA-2072249-A1 (CA)
Title: Human monoclonal antibody specifically binding to surface antigen of cancer cell membrane
Inventor: HOSOKAWA SAIKO
IPC: A61K47/48
Filed: 1992-06-24
Abstract: The present invention is directed to a human monoclonal antibody specifically binding to a surface antigen of cancer cell membrane, an isolated DNA encoding the antibody, and a hybridoma producing the antibody. An anti-cancer formulation comprising the monoclonal antibody bonded to the surface of a liposome enclosing an anti-cancer agent or toxin is also provided.
Patent CA-2072908-A1 (CA)
Inventor: KIRWAN LEE D
IPC: F17C13/04
Filed: 1992-07-02
Abstract: A valve assembly operable to fill a container with pressurized gas from a source thereof and to vent the cylinder and associated passage means in the valve assembly to atmosphere, the cylinder having a valve with a valve member spring biased to a closed position.  The valve assembly has a valve housing having a main chamber, a supply port connectable to a source of pressurized gas, a fill port connectable to a cylinder to be filled, and a vent port communicating with the atmosphere, said supply port, fill port and vent port communicating with the main chamber.  A valve body is mounted in the main chamber for movement therin and having a first passage operable in a first position of the valve body to connect the fill port to the vent port, second passage operable in a second position of the valve body to connect the supply port to the fill port, and a third passage operable in a third position of the valve body to connect the fill port to the vent port.  A valve opening member movably mounted in the valve housing and acutated by the valve body when the body is moved to the second and third positions to engage and move the valve member of a cylinder secured to the fill port to an open position.  When a source of pressurized gas is connected to the supply port and a cylinder in connected to the fill port, positioning of the valve body in the first position causes the fill port to be vented through the first passage and the vent port to the atmosphere, positioning the valve body in the second position causes the cylinder to be filled with gas from the source thereof, the gas passing through the second passage means, the fill port and the now-open cylinder valve into the cylinder, and positioning of the valve body in the third position causes the cylinder to be vented through the open cylinder valve, the fill port, the third passage means and the vent port to the atmosphere.
Patent CA-2074466-A1 (CA)
Title: Process for the production of cell mass and/or fermentation products under sterile conditions as well as an apparatus for implementing the process
Inventor: METZ MICHAEL
IPC: C12R1/225
Filed: 1991-11-21
Abstract: Process for the production of cell mass and/or fermentation products under sterile conditions, during which the fermentation mixture, at least at times, is recycled and the metabolic products of the cultivated cells, and possibly the cell mass are separated; the process comprises the following steps: - charging the fermentation equipment with a sufficient amount of nutrient medium to start the required cell culture. - sterilizing the equipment as well as adjustment of the required concentration of nutrient medium, - inoculation of the nutrient medium with the starter culture and allowing undisturbed growth of the culture for a defined time, - increasing the concentration of the nutrient medium to the specific nutrient medium concentration of the cell culture by simultaneously increasing the volume of the nutrient medium to the working volume of the fermenter and increasing the concentration of cells, - transition to continuous procedure with exchange of the nutrient medium and separation of the metabolic products as well as complete or partial cell recycling, - termination of the continuous procedure at a required time, harvest of the cell mass under-sterile conditions, and possibly - repetition of some or all of the abovementioned steps in the order stated, as well as a device for the implementation of these processes.
Patent CA-2075600-A1 (CA)
Title: Multiple pitch sequence optimization
Inventor: WILLIAMS THOMAS A
IPC: B60C11/11
Filed: 1992-08-07
Abstract: A tire tread has a plurality of base pitches arranged in at least two circumferential sections around the tire.  The base pitches have at least two different pitch lengths and include a plurality of load-supporting tread blocks. The different pitch lengths of the base pitches form a pitch sequence in each circumferential section of the tire.   The pitch sequences in the sections are arranged such that the noise produced by the base pitches in the tire tread is a low level, distributed noise to reduce the noise produced by the tire when the tire is in use.