baber/WOPTO huggingface dataset:
Patent CA-1307992-C (CA)
Title: Toilet tank-actuated drain trap primer assembly
Inventor: PERROTT CHARLES H
IPC: F16K13/10
Filed: 1987-12-21
Granted: 1992-09-29
Abstract: ABSTRACT    A Walker-type, toilet tank-activated, drain trap primer assembly has a flexible conduit interconnecting the after-fill pipe and the trap priming pipe.  Valve means on the flexible conduit restrict the flow therein to a predeter-mined minimum.  Check valve means in the conduit prevent backflow of the trap contents in the event of loss of pressure in the pressurized house line supplying the toilet.
Patent CA-1330011-C (CA)
Inventor: OBRERO FAUSTINO P
IPC: A23B7/16
Filed: 1987-12-30
Granted: 1994-06-07
Abstract: ABSTRACT         Freshly harvested fruit intended for sale in the fresh fruit market is treated with effective amounts of a nonionic or anionic surfactant-containing solution to inhibit internal browning. The fresh condition of the fruit is maintained for an increased period of time and the shelf life of the fruit is extended.
Patent CA-1298079-C (CA)
Title: Coating apparatus and method
Inventor: EMBRY LAMAR
IPC: B05C9/08
Filed: 1988-01-04
Granted: 1992-03-31
Abstract: ABSTRACT OF THE DISCLOSURE      A coating apparatus is disclosed for applying a coating onto a surface of a moving web.  The apparatus includes a backing member which defines a perforate surface such that when the member is connected to a source of partial vacuum, the web is drawn towards the perforate surface of the member.  A coating blade is disposed adjacent to the backing member such that the blade urges the web towards the perforate surface.  A permeable belt extends around the backing member with the belt being disposed between the web and the backing member such that when the source of partial vacuum is connected to the backing member, air flows through the belt and the perforate surface for drawing the web into close conformity with the belt.  The belt and the web then move together in the same direction for inhibiting the buildup of deleterious  material adjacent to the blade that would otherwise remain adjacent to the blade causing marking of the coating applied to the surface of the web by the blade.
Patent CA-1326029-C (CA)
Title: 4-thiazolidine-carboxylic acid derivative, its preparation and pharmaceutical compositions containing it
Inventor: POLI STEFANO
IPC: A61K31/395
Filed: 1988-01-11
Granted: 1994-01-11
Abstract: S U M M A R Y 3-L-pyroglutamoyl-thiazolidine-4-carboxylic acid,  prepared starting from an activated ester of L-pyroglutamic acid or from    L-pyroglutamoyl-chloride    and    L-thiazolidine-4-carboxylic  acid,  shows  interesting  immunostimulating, antitoxic,  antiinflammatory,  antioxidizing  and  antiageing properties.
Patent CA-1340522-C (CA)
Title: Fusion proteins containing neighbouring histidines for improved purification
Inventor: EGGIMANN BERNHARD
IPC: C07K19/00
Filed: 1988-02-11
Granted: 1999-05-04
Abstract: Fusion proteins as well as a process for their purification by means of metal chelate affinity chromatography on NTA resins.
Patent CA-1296942-C (CA)
Title: Low air volume kitchen exhaust hood
Inventor: WELSH CLARKE T
IPC: F24C15/20
Filed: 1988-02-16
Granted: 1992-03-10
Abstract: Abstract of the Disclosure An exhaust-only type of kitchen exhaust hood is provided with removable fume-guide plate upstream of the in-hood grease filters.  The plates are shaped to provide a forward flow of fumes from the rear of the hood forward over the cooking unit toward the front lip of the hood.  A slot is provided between the front edge of the plate and the front wall of the hood whereby the air flow into the hood accelerates around the front edge of the plates to provide a flow rate of approximately 200 feet per minute at the front edge of the hood.  Slots are provided between the hood ends and adjacent side edges of plates next to the ends.  The plates are movable to facilitate changing of filters.
Patent CA-1297329-C (CA)
Title: Refiner segment
Inventor: VIRVING NILS
IPC: B02C/
Filed: 1988-02-24
Granted: 1992-03-17
Abstract: Abstract A refiner segment (1) for disc refiners is formed with a pattern of bars (2,4) and grooves (3,5), and flow restrictions (6) are located in the grooves (5). Through apertures (8) in the bars (4) the grooves (5) communic-ate with each other so that the grooves have free comm-unication outward and inward via the apertures (8).
Patent CA-1324486-C (CA)
Inventor: TIMELL HANS H
IPC: B65H/
Filed: 1988-03-07
Granted: 1993-11-23
Abstract: ABSTRACT OF THE DISCLOSURE            The disclosure relates to an apparatus for the arrangement and pre-paration of cores (13) intended for use as reel cores in papermaking in a number of stations with tools for carrying out a number of wor-king operations in and/or on each one of the ends of the cores (13), the stations being disposed in side-by-side relationship and having opening and closing grippers (16) for fixedly retaining the core (13) which is to be arranged and prepared, in each respective stat-ion during the execution of one or more working operations therein, the opening and closing grippers (16) being disposed on the one, free end of an arm (17) which is located at each end of the core (13) and which, at the opposite end in relation to the opening and closing grippers (16), is pivotal about a shaft (18) located beside the station. Furthermore, the arms (17), with the opening and clos-ing  grippers  (16),  are  interconnected for simultaneous  pivoting about the shaft (18) for transferring a core (13) substantially non -rotatably fixedly held  by the  grippers  (16),  from the  above-mentioned station to the immediately subsequent station, in which open grippers (16) are arranged to be closed about the core (13) and thereby grasp and fixedly retain the core (13) in an orientationally controlled position before the preceding grippers (16) are opened for release of the core (13).        Publication Figure: Fig. 2.
Patent CA-1300209-C (CA)
Title: Freight brake control valve having an emergency piston slide valve arranged to provide an accelerated brake application function
Inventor: WEBER CHARLES L JR
IPC: B60T15/42
Filed: 1988-03-16
Granted: 1992-05-05
Abstract: (Case No. 8389) ABSTRACT OF THE DISCLOSURE     A freight brake control valve device in which the emergency piston slide valve is arranged to incorporate, in conjunction with the conventional service stability function provided thereby, an accelerated service application function in which a continuous local venting of brake pipe pressure is provided to hasten propagation of service rates of brake pipe reduction.  A preliminary flow restrictor in one flow path and a primary flow restrictor in a parallel flow path control the quick-action chamber "breathing" rate such that the emergency piston is stabilized against movement to emergency position, as long as the brake pipe pressure reduction does not exceed a service rate.  Following a service application, the preliminary flow restrictor has the further function of maintaining "breathing" until after the local reduction of brake pipe pressure is cut off, thereby assuring positive movement of the emergency piston to its service lap position.
Patent CA-1316670-C (CA)
Title: Process for the preparation of multilayer blocks suitable for the production of slabs without the use of a sawing machine
Inventor: TONCELLI LUCA
IPC: B28B13/02
Filed: 1988-03-17
Granted: 1993-04-27
Abstract: PROCESS FOR THE PREPARATION OF MULTILAYER BLOCKS SUITABLE FOR THE PRODUCTION OF SLABS WITHOUT THE USE OF A                 SAWING MACHINE         ABSTRACT OF THE DISCLOSURE    A process for the production of a multi-layer block by distribution of a mixture, the block being used for the production of agglomerated slabs of marble, granite, sand or in general stone, consists of weighing a predetermined amount of the mixture, mixing it to render it homogeneous, conveying the predetermined amount of homogeneous mixture into a mold provided with a vertically movable bottom, subjecting the mixture to a vibrating action by means of a vibrating plate, then lowering said predetermined amount of the mixture of a distance equal to the thickness of a new slab, covering the mixture with a sheet of impermeable material, repeating the operations until the mold is filled. A multi-layer block is formed, which is compacted and allowed to set.  The block is separated into slabs corresponding to the sheets of impermeable material.  The apparatus is also described.
Patent CA-1310188-C (CA)
Title: Apparatus for removing minute particles from a substrate
Inventor: WHITLOCK WALTER H
IPC: B08B3/00
Filed: 1988-03-25
Granted: 1992-11-17
Abstract: ABSTRACT                 APPARATUS AND METHOD FOR REMOVING MINUTE PARTICLES FROM A SUBSTRATE   Apparatus  for  removing  small  particles  from  a  sub-strate  comprising  a  source  of  fluid  carbon dioxide,  a first means for expanding a portion of the fluid carbon dioxide  into  a  first mixture containing  gaseous  carbon dioxide  and  fine  droplets  of  liquid  carbon  dioxide, coalescing means for converting the first mixture into a second  mixture  containing  gaseous  carbon  dioxide  and larger liquid droplets of carbon dioxide, second expansion means  for  converting  said  second  mixture  into  a  third mixture containing solid particles of carbon dioxide and gaseous carbon dioxide, and means for directing said third mixture toward the substrate.  Also disclosed are methods for removing fine particles from substrates utilizing the subject apparatus.
Patent CA-1290474-C (CA)
Title: Cross-connection of wavelength-division-multiplexed high speed channels
Inventor: KOBRINSKI HAIM
IPC: H04Q11/00
Filed: 1988-05-05
Granted: 1991-10-08
Abstract: Abstract of the Disclosure A wavelength division multiplexing structure for establishing dedicated high bit rate point-to-point connections between network nodes is disclosed.  The information transmitted out of any given network node is modulated on a plurality of wavelengths according to destination.  These wavelengths are multiplexed and transmitted to the network hub.  At the hub, all the different wavelengths from all the nodes are demultiplexed, passively rearranged, multiplexed again and transmitted to the appropriate destinations.  The information handling capacity of this structure exceeds 1 Terabit/second.
Patent CA-1333799-C (CA)
Inventor: KRISTEN ULRICH
IPC: F02B3/06
Filed: 1988-06-29
Granted: 1995-01-03
Abstract: A lubricant oil composition comprising a diesel engine oil and, as antioxidant, a compound of formula I                I     wherein R1 and R2 are each independently of the other C1-C12alkyl and X is      ,                  or -CH2-S-R and R is a straight chain or branched alkyl radical of the formula -CnH2n+1, wherein n is an integer from 9 to 30.
Patent CA-1316275-C (CA)
Title: Froth flotation process for the recovery of minerals and a collector composition for use therein
Inventor: MACKENZIE JAMES M W
IPC: B03D1/004
Filed: 1988-07-07
Granted: 1993-04-13
Abstract: ABSTRACT A collector composition for use in the froth flotation recovery of minerals, in particular of sulphide minerals such as pyrite, chacopyrite and pentlandite and of gold, from ores.  It further relates to a flotation agent and to a froth flotation process.  The composition contains a primary or secondary amine or amine salt and at least one of xanthates; dithiophosphates, mercaptobenzothiazoles, xanthogen formate and thionocarbamate.
Patent CA-1320408-C (CA)
Title: Infant cardiopulmonary board
Inventor: CLARK GERALD W
IPC: A61G1/00
Filed: 1988-07-18
Granted: 1993-07-20
Abstract: ABSTRACT      The   invention   is   a  self  contained   infant restraining    device   (10)   used    for    performing cardiopulmonary   resuscitation   or   other   emergency treatment  on a patient up to 2 years old.   The  device (10)  has  2  sections (12 and 14)  which  are  normally attached  together by use of latches (16).   Top section (12)  is used to carry and restrain the  infant's  body.          Bottom  section  (14) contains 2 drawers (52) which  are used  to carry drugs,  medical supplies and  instruments for  treatment of the infant patient.   The top  section (12) may be quickly released from bottom section (14) if the user wants to make top section (12) lighter and more portable.   The infant's body is placed in  indentation (36) of the top surface (28) and securely restrained  by a plurality of straps (44) using hook and pile fasteners (46). The   infant's  head  is  restrained  in   head indentation  (26) which is equipped with two small  sand bag  pillows  (32) attached to indentation (26) by  hook and pile fasteners (33) and (34).   Provisions are  also made  for  attachment of a Bashaw  Cervical  Immobilizer (30) in indentation (26) for stabilizing of the infant's body.
Patent CA-1341102-C (CA)
Title: Tetra-aza macrocycles and metal complexes thereof
Inventor: MILLICAN THOMAS ANDREW MILLICA
IPC: A61K47/48
Filed: 1988-08-12
Granted: 2000-09-26
Abstract: Tetra-aza macrocycles of formula (1) (see formula I) wherein m and n , which may be the same of different, is each zero or an integer 1, 2, or 3; p is zero or an integer 1 or 2; q is zero or an integer from 1 to 6 inclusive;      R1, R2 and R3, which may be the same or different, is each a hydrogen atom or an alkyl, alkoxyalkyl, -CO2H, -SO3H, PO3H2 or aryl group;      L is a covalent bond or linker group;      Z is a hydrogen atom or a reactive functional group, with the proviso that when L is a covalent bond Z is a reactive functional group; and metal complexes and/or salts thereof; are described together with processes for their preparation and compositions containing them. The compounds are useful for imaging and in the treatment of abnormal cell disorders, such as in the treatment of tumours, and are particularly suitable for coupling to other molecules such as proteins for use in diagnosis and therapy.
Patent CA-1300443-C (CA)
Title: Waste removal apparatus
Inventor: EWALD HERBERT J JR
IPC: A01K63/04
Filed: 1988-08-24
Granted: 1992-05-12
Abstract: WASTE REMOVAL APPARATUS                          ABSTRACT           Apparatus for use in removing waste from a fish culture system including a tank through which water from the system may be circulated, filters mounted in upright and spaced apart relation across the tank so that the water circulates successively through them, and tubes for injecting air into the water on the upstream side of each filter.
Patent CA-1317972-C (CA)
Title: 2-nitro-5-(substituted phenoxy) benzohydroximic acid derivatives
Inventor: GOH ATSUSHI
IPC: C07C327/22
Filed: 1988-08-25
Granted: 1993-05-18
Abstract: Abstract of the Disclosure A compound of the formula                ... (I) in which each of X and Y represents a halogen atom, R represents a hydrogen atom, a lower alkyl group or an agronomically acceptable soluble salt ion, R1 represents a lower alkyl group, R2 represents a hydrogen atom or a lower alkyl group, and Z represents an oxygen or sulfur atom.  This compound is useful as herbicide.
Patent CA-1306844-C (CA)
Inventor: KUBEK DANIEL J
IPC: B01D53/14
Filed: 1988-09-28
Granted: 1992-09-01
Abstract: ALKANOLAMINE GAS TREATING PROCESS FOR A FEEDSTREAM CONTAINING HYDROGEN SULFIDE               ABSTRACT OF THE INVENTION           An  alkanolamine acid gas process for removing acid gas from a feedstream containing hydrogen sulfide.          The feedstream is contacted with an aqueous alkanolamine solution in an absorption column to form an alkanolamine solution rich in hydrogen sulfide.  An alkanolamine solution lean in the acid gas is regenerated with the rich solution of alkanolamine for recycling through the absorption column.  A vanadium compound is used in the alkanolamine solution for inhibiting corrosion. The improvement in the process comprises a) maintaining a minimum level between 0.003 to 0.02% hydrogen sulfide in the alkanolamine solution; and b) introducing oxygen into the alkanolamine solution to maintain about 30 to 70 ppm of vanadium in its plus five valance state throughout the acid gas treating operation.
Patent CA-1328519-C (CA)
Inventor: KRUPP STEPHEN P
IPC: D04H3/16
Filed: 1988-10-26
Granted: 1994-04-12
Abstract: ABSTRACT     Blends of high molecular weight linear poly-ethylene and low molecular weight linear polyethylene provide improved fiber-forming capabilities over that found with either polymer taken alone. Preferably at least one of the polymers used in the blend is a linear low density polyethylene, LLDPE, which is a linear polyethylene comprising ethylene copolymerized with an amount of a higher alpha-olefin which causes the density of the copolymer to be less than that of a homopoly-mer made using the same process and catalyst. The higher alpha-olefin can be at least one in the C3-C12 range, preferably in the C4-C8 range.
Patent CA-1337574-C (CA)
Inventor: CORLEY LARRY STEVEN
IPC: C08G59/50
Filed: 1988-11-14
Granted: 1995-11-14
Abstract: A curable composition comprising an epoxy resin and an aromatic azopolyamine curing agent is described.  The azopolyamine curing agent is preferably a compound according to the formula   in which each R is selected independently from H and C1-C4 alkyl;          R' is a substituted or unsubstituted aromatic or bisaromatic group; and m is 1 or 2.  Such compounds are generally the reaction products of a diazonium salt with an aromatic diamine, and include a large number of compounds known in the art of azo dyes.  The use of azopolyamine curing agents in reactive monomer-diluted systems results in a high-modulus cured epoxy system.
Patent CA-1319810-C (CA)
Inventor: FOLKMAR JAN
IPC: B65D33/16
Filed: 1988-11-15
Granted: 1993-07-06
Abstract: Abstract A closure means for closing plastic bags or the like consists of two clamping legs connected together via a joint and a locking means holding the clamping legs in mutual engagement, the one clamping leg being provided with a recess extending along the axis of the clamping leg and the other clamping leg being provided with a rib which extends along its axis and which is adapted to be moved into the recess by movement of the two clamping legs towards each other, a member of the locking means being formed on one clamping leg and the other member on the other clamping leg. The first clamping leg having a recess has a substantially U-shaped cross-section, the sidewalls of the first clamping leg with U-shaped cross-section are extended by lips in the plane of the respective wall, the thickness of the lips is less than the thickness of the walls  the second leg comprising the rib has a substantially V-shaped profile and the clear internal width of the U-shaped first clamping leg is less than the clear external width of the second clamping leg.
Patent CA-1308319-C (CA)
Inventor: MOISE JOHN C
IPC: A61M60/462
Filed: 1988-12-06
Granted: 1992-10-06
Abstract: ABSTRACT       A disposable, sterilizable cable drive unit for an intravascular blood pump includes a rotor enclosed in a fluid-tight enclosure which can be slipped into the stator of a drive motor. The unit is connectable to a constant-rate purge fluid supply and to a dual-lumen cable sheath. One lumen provides a sterile purge fluid path; the other carries the drive cable to the blood pump and provides a return path for a flushing fluid in which the cable is immersed. The flushing unit is derived from the purge fluid supply at a constant rate, and the rotor may also be immersed in it if desired. The unit is held in the drive motor by a manually operated detent, and the self-centering action of the rotor aligns it with the stator when the motor is energized. The motor is mounted on a gimbel so as to be alignable with the cable sheath at its point of insertion into the patient's vascular system, in order to prevent stresses on the patient and kinks in the cable sheath.
Patent CA-1299001-C (CA)
Title: Debris barrier
Inventor: DENNY DAVID S
IPC: E04G21/28
Filed: 1988-12-07
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE     A debris barrier for a high rise construction structure comprises a woven flexible mesh netting.  A cord longitudinally extends along the top of the netting to form a reinforced border.  The top of the netting is clipped to a safety cable so as to vertically suspend a portion of the netting.  An anchoring strip is fastened to the netting.  The netting is anchored L-o the floor slab by driving fasteners through the anchoring strip.
Patent CA-1307883-C (CA)
Inventor: BENEKE ULRICH
IPC: E05D11/08
Filed: 1988-12-08
Granted: 1992-09-29
Abstract: ABSTRACT  A furniture hinge incorporates hinge elements that can be attached to the furniture casing and to a door, and has at least one arm that is articulated onto these hinge elements.  The present invention alms to avoid disturbing closing noise, and to attenuate the effect of externally applied, increased closing forces. This is done by arranging a damping system between the functional elements of the hinge.  This damping system comprises a piston rod that is articulated on an arm of the hinge and is connected with a bellows-like cover cap of a cylinder, within which the piston can slide.  This cover cap is of rubber or rubber-like plastic, and is elastically deformable.  In order to counteract the load peaks that occur during the closing movement of the piston of the damping system or of the furniture hinge, parts of the damping system can be elastically deformable under pressure, in order to provide for a brief enlargement of the flow area between the two chambers of the cylinder of the damping system.
Patent CA-1340571-C (CA)
Inventor: UENO RYUZO
IPC: C07C65/11
Filed: 1989-01-19
Granted: 1999-06-01
Abstract: The present invention provides a method of producing aromatic hydroxycarboxylic acids by reacting alkaline metal salts of phenols or naphthols with carbon dioxide, in which free phenols or free naphthols produced as by-products in the reaction system are removed from the system so as to control the content of free phenols or free naphthols at a suitable level. A purer objective compound can be obtained in high yield under conditions of lower temperature and in a shorter time.      Aromatic hydrocarboxylic acids are important in the preparation of antiseptics, antifungals, pigments, dyes, liquid crystals, pharmaceuticals, agricultural chemicals and the like.
Patent CA-1337240-C (CA)
Title: Procede et dispositif pour l'obtention d'une feuille de verre pliee
Inventor: HAVENITH HUBERT
IPC: C03B23/03
Filed: 1989-02-03
Granted: 1995-10-10
Abstract: L'invention a trait à un procédé de bombage d'une feuille de verre, notamment d'un vitrage automobile, avec une zone pliée, selon un petit rayon de courbure. Comme outil de bombage, on utilise une presse composée d'une forme femelle (18) et d'une forme mâle (12), la forme femelle étant constituée par au moins deux éléments (29, 30) liées entre eux et articulés. Après la saisie par la presse de bombage d'une partie de la feuille de verre (2) échauffée à la température de bombage, au moins un des éléments articulés (30, 30') de la forme (18) est replié contre la forme mâle (12) autour de l'axe d'articulation. Un moteur réglable à couple constant (38) sert à la commande du mouvement des éléments articulés dont la vitesse angulaire est réglée pendant le processus de bombage en fonction de la température de la feuille (2') et du degré de déformation.
Patent CA-1335996-C (CA)
Inventor: TAKADA SUSUMU
IPC: A61P25/20
Filed: 1989-02-03
Granted: 1995-06-20
Abstract: 2-Substituted carbonylimidazo[4,5-c]quinolines of formula:       (I) having a high affinity for benzodiazepin receptor and showing an excellent psychostimulating action orally at a dose of 0.1 - 500 mg are provided through several routes.