baber/WOPTO huggingface dataset:
Patent CA-2066181-C (CA)
Title: Displacement heating in continuous digesters
Inventor: FAGERLUND KARL-ERIC BERTIL
IPC: D21C3/22
Filed: 1990-09-25
Granted: 1995-09-26
Abstract: An apparatus and method for treating cellulosic wood chips in a digestion process for the liberation of pulp in a caustic hydroxide solution at high pressures and temperatures by delivering preconditioned wood chips to a first chamber (10) and circu-lating a low temperature black liquor through the chamber (10) to preheat the chips, while continuosly feeding the chips through the chamber (10) to a second chamber (21) at high temperature and pressure, circulating high temperature black liquor to the chips in the second chamber (21) to advance them to cooking temperature, feeding white liquor and the chips to a digester (33) for the digestion process over a predetermined period of time, and removing digested pulp and delivering the pulp to a washer with the black liquor for washing being utilized for the first chamber (10), and heating the white liquor through a heat exchange pro-cess with the high temperature black liquor.
Patent CA-2067862-C (CA)
Title: Stable pura vectors and uses thereof
Inventor: BREY ROBERT N III
IPC: A61P31/04
Filed: 1992-05-01
Granted: 2003-12-30
Abstract: This invention pertains to a complementation system for the selection and maintenance of expressed genes in bacterial hosts. The invention provides stable vectors which can be selected and maintained by complementation of chromosomal deletion mutations of purA (adenylosuc-cinate synthetase), obviating the use of antibiotic resistance genes. This system is useful in production organisms during fermentation and in live vaccine bacteria, such as attenuated Salmonella typhi. This system allows for selection of chromosomal integrants and for selection and stable plasmid maintenance in the vaccinated host without application of external selection pressure.
Patent CA-2074718-C (CA)
Title: Method and apparatus for cleaning ballast
Inventor: WHITAKER JOHN B JR
IPC: E01B27/10
Filed: 1991-01-24
Granted: 1999-11-09
Abstract: An articulated ballast cleaning system utilizes a pair of ditcher wheels (26, 27) each dedicated to removing only the peripheral ballast from adjacent the ends of crossties (14). Undercutter (42) removes the ballast from beneath the center of the crossties (14). A, screen cleaner (31) is provided to separate spoil from reusable ballast removed by the ditcher wheels (26, 27) whereas, ballast cleaner (41) is provided to separate spoil from reusable ballast removed by undercutter (42). The reusable ballast is cleaned by screen cleaner (31) and ballast cleaner (41). Spoil or waste ballast is conveyed forwardly along the apparatus for disposal, while cleaned ballast is conveyed rearwardly for replacement aft of the undercutter (42). Fresh ballast may be conveyed forwardly along the apparatus to supplement the cleaned ballast.
Patent CA-2074849-C (CA)
Title: Very large scale modular switch
Inventor: FRANASZEK PETER A
IPC: H04Q3/52
Filed: 1992-07-29
Granted: 1997-02-25
Abstract: Switch resources for a one-sided crosspoint switch with distributed control  (i.e.,  switch ports,  internal busses  and  controllers)  have  been  organized  so  that modular  growth  is  facilitated by:  (1)  assigning  each switch port uniquely  to  one  of  the  controllers;  (2) making  each  controller  handle  only  the  crosspoints connected  to  the  switch  ports  assigned  to  it;  (3) assigning  each  internal  bus  uniquely  to  one  of  the controllers;   and   (4)   providing  a  means  for  the controllers  to  communicate with  each  other.   Modular growth  of  any  of  the  switch  resources  (i.e.,  switch ports,    internal   busses   and/or   controllers)   is accommodated by effectively reallocating (i.e., modifying the assignment of) some or all of the resources.  Failure of a switch resource is accommodated also by effectively reallocating (i.e., modifying the assignment of) some or all   of   the   remaining  usable   resources.    It   is contemplated that modification of resource allocation can be done in various alternative ways, either physically or electronically,   including   automatically   and   even dynamically.
Patent CA-2075715-C (CA)
Title: Pipeline and passageway lining materials
Inventor: SMITH EDWARD PETER
IPC: B29C63/36
Filed: 1991-03-15
Granted: 2001-08-14
Abstract: A soft lining process lining tube is made up of an inner layer with one or more reinforcement layers wrapped these around. The or each reinforcement layer is wrapped so that the edges thereof overlap and the said overlapped edges may be adhered to-gether with an adhesive which will yield when subsequently the lining tube is inflated onto a pipeline or passageway surface to be lined. The inner layer is of resin absorbent material as is the or each reinforcement layer, and the lining tube is impregnated with curable synthetic resin before being inflated into position. The resin is caused to cure so that the reinforcement layer or layers be-comes or become embedded in the cured resin.
Patent CA-2076781-C (CA)
Title: Inverter apparatus capable of inverting a3 or 11 x 17" sheets
Inventor: ALEXANDER ROBERT H JR
IPC: B65H15/00
Filed: 1992-08-25
Granted: 1997-12-09
Abstract: ABSTRACT         A printer capable of producing simplex and duplex copies includes a tri-roller inverter that employs a passive deflector gate downstream from input and output nips of the tri-roller inverter. A sheet driven by the input nip into a reversing chute of the inverter deflects the passive deflector gate to an open position that allows the sheet to enter the inversion chute and after the sheet is past the gate it returns to close deposition, thus allowing the sheet to be driven past it in reverse by a reversing roller. Once the lead edge of the reversed sheet passes the passive deflector gate, a second sheet enters the input nip resulting in two sheets being in the inverter at the same time.
Patent CA-2078773-C (CA)
Title: Gp75 as a tumor vaccine for melanoma
Inventor: HOUGHTON ALAN N
IPC: C12N9/02
Filed: 1991-03-22
Granted: 2001-07-03
Abstract: The present invention provides an isolated nucleic acid molecule whose sequence encodes the amino acid sequence for gp75 or a fragment thereof. The present invention further provides an isolated cDNA molecule of the gp75 nucleic acid molecule or a fragment thereof and the amino acid sequence derived therefrom. This invention also provides vaccines for stimulating or en-hancing in a subject to whom the vaccine is administered production of antibodies directed against gp75. This invention further provides methods using the vaccines of this invention for stimulating or enhancing production of antibodies against gp75 as well as for treating, preventing or delaying the recurrence of cancer.
Patent CA-2079261-C (CA)
Inventor: RIFFE DELMAR R
IPC: F04C18/02
Filed: 1992-09-28
Granted: 1999-04-13
Abstract: In a co-rotational scroll apparatus having two interleaving scroll wraps secured to end plates rotating about parallel, non-concentric axes, a precharging device affixed to one end plate and substantially enclosing the scroll wraps and the second end plate.  Preferably, the precharging device includes a cup-shaped drive housing secured to one end plate and enclosing the scroll wraps, and a flexible torque-transmitting member connecting between the enclosure member and the second end plate.  Apertures are provided in the enclosure member to permit fluid flow into the space enclosed by the enclosure device, with vanes disposed adjacent the apertures to force fluid into the enclosed space during rotation of the scroll wraps.  Fluid thus forced into the enclosed space is precharged prior to entering the scroll wraps, being at higher pressure than fluid exterior the enclosed space, improving the operating efficiency of the scroll apparatus.
Patent CA-2083371-C (CA)
Inventor: SMURKOSKI JOHN ANDREW
IPC: B29C43/22
Filed: 1991-06-14
Granted: 1996-07-09
Abstract: A backside textured papermaking belt is disclosed which is comprised of a framework and a reinforcing structure. The framework has a first surface which defines the paper-contacting side of the belt, a second surface opposite the first surface, and conduits whic extend between first and second surfaces of the belt. The first surface of the framework has a paper side network formed therein which defines the conduits. The second surface of the framework has a backside network with passageways that provide surface texture irregularities in the backside network. The papermaking belt is made by casting a photosensitive resinous material over and through the reinforcing structure while the reinforcing structure travels over a textured surface, and then expos-ing the photosensitive resinous material to light of an activating wavelength through a mask which has transparent and opaque regions. A process for making paper products is also disclosed which involves applying a fluid pressure differential from a vacu-um source through the belt to a partially-formed embryonic web of papermaking fibers. The fibers in the embryonic web are def-lected into the conduits of the papermaking belt by the vacuum pressure while the papermaking belt and the embryonic web travel over the vacuum source. Following the deflection, the paper web is impressed with the paper side network of the belt, and dried to form the final product.
Patent CA-2083890-C (CA)
Title: Flexible dam
Inventor: DOS SANTOS JUAREZ FONTANA
IPC: E02B15/04
Filed: 1992-11-26
Granted: 1994-05-07
Abstract: A  dam  is  provided  for  the  temporary  local containment of water in a body of standing or slow moving water such as a lake, bay or river.  The dam is formed by a flexible barrier having a chamber extending along its lower margin and containing a flexible pipe which is filled with a high density fluid such as barite mud, whish anchors the bottom of the barrier and allows it to accommodate the contour of the bottom of the lake, bay or river.  The upper and intermediate portions of the barrier have inflatable chambers, those in the upper portion being filled with air so as to support the barrier at the waters surface, and the chambers in the intermediate portion are filled with water to    give   them   approximately   neutral    flotation characteristics.
Patent CA-2088227-C (CA)
Title: An improved process for recovery of hydrocarbons and rejection of sand
Inventor: GREGOLI ARMAND A
IPC: B03B9/02
Filed: 1993-01-27
Granted: 1999-02-02
Abstract: A  process  suitable  for  operation  at  a  mine  site  for recovering  a  hydrocarbon  from  a  hydrocarbon  bearing  sand comprising  the  steps  of  mixing  a chemical  additive  with  a chemical  composition  and  with  a hydrocarbon  bearing  sand containing hydrocarbon and residual solids including clay, at a temperature to form a slurry.  The chemical composition comprises an aqueous phase and a minor amount of a chemical agent selected from the group consisting of at least one ethoxylated alkylphenol compound, at least one ethoxylated dialkylphenol compound, MIBC, SC-177, Petronate HL, Calcium Lignosulfonate, NaOH and mixtures thereof.    The  slurry  is  conditioned  and  aerated to  produce essentially sludge-free tailings and a mixture of hydrocarbon, aqueous phase and residual solids including clay.   The process further comprises the step of separating in a short-residence time apparatus the mixture of the hydrocarbon, the aqueous phase and  the  residual  solids  including  clay  from the  essentially sludge-free tailings.
Patent CA-2089837-C (CA)
Title: Method for digesting polysaccharides and products therefrom
Inventor: THORNE LINDA P
IPC: C12N9/24
Filed: 1993-02-18
Granted: 1999-07-06
Abstract: ABSTRACT OF THE DISCLOSURE              A compound having endolytic enzymatic activity against polysaccharides having the subunit backbone structure:     ?3)-.beta.-D-Glc-(1?4)-.beta.-D-GlcA-(1?4)-.beta.-D-Glc-(1?4)-.alpha.-L-X-(1?    (I) wherein Glc is glucose, GlcA is glucuronic acid, Rha is rhamnose, Man is mannose, X may be Rha or Man, and wherein the reducing end of the polymer is toward the X residue of the backbone is disclosed. A method for producing the compound by culturing a selected organism, the method for selecting the organism and method for using the compound are also disclosed.
Patent CA-2089992-C (CA)
Title: Control board having dual means of configuration
Inventor: MERKLE SCOTT A
IPC: G05B19/042
Filed: 1993-02-19
Granted: 1996-04-02
Abstract: An apparatus and system for permitting dual-mode configuration of an appliance control board preferably in conjunction with an external electronic programming device or by means internal to the appliance.  Preferably, a set of selection switches are provided in an interior space of the appliance that are used to select desired operating parameters.  By changing the setting of the switches, the operator may configure the appliance for many specific modes of operation.  In addition, the appliance can be electronically reconfigured by use of a hand held data probe.
Patent CA-2091588-C (CA)
Title: Device for obtaining nourishing substances by extraction from bones and, where appropriate, meat adhering thereto
Inventor: PROSENBAUER OTTO
IPC: A22C17/04
Filed: 1991-09-04
Granted: 1995-07-25
Abstract: An apparatus for obtaining nutritive substances by extraction from bones and meat adhering thereon has a receptacle (2) for receiving bones and an extracting liquid, preferably water.  In the receptacle at least one stirring element (7) is provided and the receptacle (2) is tiltable with a horizontal shaft (3) so that is content can be discharged onto a coarse sieve (15) positioned within a trough (14) for separating the bones and the coarse components from the liquid and the fine components.  Below the coarse sieve (15) is a gutter which leads to a rotating sieve (23) the sieve openings of which are smaller than those of the coarse sieve (15).  At least one stripper engages the rotating sieve (23) and below the rotating sieve (23) there is a collecting container (30) for the liquid, a discharge conduit (34) extending from this container.  This results in a space-consuming construction and permits a fractional separation of the useful components of the bones and the meat adhering thereto.
Patent CA-2096760-C (CA)
Inventor: MORIKAWA MICHIO
IPC: B26D3/28
Filed: 1993-05-21
Granted: 1996-05-14
Abstract: An apparatus for dividing bread dough or the like is provided, which comprises a dough-cutting member (38) comprising a saw blade means, two dough-supporting members (30, 56), a drive means for reciprocating the saw blade means, and a discharge means (57) for regulating the pieces of bread dough cut to have a thickness corresponding to a preset distance from the dough outlet (35) of the apparatus, thereby producing pieces of bread dough having a uniform thickness.  A similar apparatus is modified, which has an adjusting means for moving a second dough-supporting member (112) parallel to its stationary position, thereby changing the size of the dough outlet (35) of the apparatus to meet a required thickness of the bread dough to be cut.  Also, a similar apparatus is provided, which has a pressing means (160) for pressing the bread dough in a hopper for dough to maintain the pressure in the bread dough at a uniform value, whereby almost all the bread dough in the hopper (15) can be cut.
Patent CA-2099504-C (CA)
Inventor: TARASCON JEAN-MARIE
IPC: C01G45/00
Filed: 1992-01-14
Granted: 1994-10-25
Abstract: A lithium metal free non-aqueous secondary battery including a carbon anode (13) and a lithium manganese oxide cathode (11) is described. In operation, lithium from the lithium manganese oxide positive electrode (11) intercalates with the carbon ne-gative electrode (13) and in this manner lithium ions are rocked back and forth during charge-discharge cycling. Lithium manga-nese oxide of the formula Li2Mn2O4 may also be used as the cathode (11) and this material may be prepared by a novel tech-nique which involves reacting LiMn2O4 with lithium iodide at low temperatures (150 °C), or alternatively by refluxing LiMn2O4 in an acetonitrile solution of lithium iodide.
Patent CA-2102187-C (CA)
Title: Use of atipamezole for the treatment of male sexual impotence
Inventor: PERTOVAARA ANTTI
IPC: A61P43/00
Filed: 1992-06-18
Granted: 2003-03-11
Abstract: This invention concerns the use of atipamezole or a pharmaceutically acceptable acid addition salt thereof for the treat-ment of male sexual impotence.
Patent CA-2106251-C (CA)
Title: Tribo-electric powder spray gun
Inventor: HALLER CURTIS B
IPC: B05B5/03
Filed: 1993-09-15
Granted: 2001-08-21
Abstract: A tribo-electric powder spray gun includes a diffuser for mixing powder with a conveying gas, a charging portion downstream of the diffuser, and a sprayhead at the outlet of the charging portion for dispensing the charged powder. The charging portion has an inner core removably positioned within a hollow outer cylinder with an annular gap formed between the outer cylinder and inner core providing a charging flowpath for the powder. The inner core and the outer cylinder have undulating or wavy charging surfaces made of an electrically insulating material, so that the annular gap provides a tortuous path for the powder, enhancing powder contact and the charge imparted to the powder. Grounding is provided by surface conduction of the electrically insulating contact material through a ground ring located outside the powder path at the inlet to the charging portion of gun where the greatest amount of charging occurs. By locating the ground ring outside the powder path, thsa ground ring is kept clean and the amount of charging surface is maximized. The inner core and the outer cylinder are longitudinally symmetrical to facili-tate re-assembly.
Patent CA-2106834-C (CA)
Inventor: BLAHUT DONALD EDGAR
IPC: H04N7/173
Filed: 1993-09-23
Granted: 1998-10-13
Abstract: The invention relates to signal distribution systems, such as interactive cable television systems, wherein a central server communicates with remote terminals wherein the server assigns a specific address to each newly-connected terminal for control messages and polls. In the case of an interactive cable television system, such terminal is the set-top box or converter connected between the cable system and the television receiver. Periodically, the server broadcasts a control message containing a tentative address, and polls the tentative address. Upon receiving such a message, a newly-connected converter stores the tentative address and responds to the poll with an uplink message.  After receiving the uplink message, the server inserts the tentative address in its polling list in accordance with the transmission delay measured from sending the poll to receiving the uplink message and selects a new tentative address to use in subsequent broadcast control messages. Uplink messages are echoed by the server and verified by the converter. If the converter cannot verify an echoed uplink message, which can occur if morethan one newly-connected converter responds to the same broadcast control message, the converter repeats its initialization procedure to acquire a new address. After the initialization is complete, system software can be downloaded from theserver to the converter and the converter placed in service.
Patent CA-2116387-C (CA)
Title: Oxazolidinedione derivatives, their production and use
Inventor: SOHDA TAKASHI
IPC: C07D498/04
Filed: 1994-02-24
Granted: 2003-12-23
Abstract: Novel 2,4-oxazolidinedione compounds of the formula:    wherein R is a hydrocarbon residue or a heterocyclic group each of which may be substituted; Y is -CO-, -CH(OH)- or -NR3- (wherein R3 is an alkyl group which may be substituted); m is 0 or 1; n is 0, 1 or 2; X is CH or N; A is bivalent straight or branched hydrocarbon chain residue having 1 to 7 carbon atoms; R1 and R2 each are hydrogen or an alkyl group, or R1 and R2 are combined with each other to form a 5- to 6-membered heterocyclic group optionally containing nitrogen; L and M each are hydrogen, or L and M are combined with each other to form a bond, or pharmaceutically acceptable salts thereof, having excellent hypoglycemic and hypolipidemic activities and are useful as anti-diabetics or hypolipidemic agents.
Patent CA-2124062-C (CA)
Title: Expansible plug
Inventor: HAAGE MANFRED
IPC: F16B13/12
Filed: 1994-05-20
Granted: 1998-06-16
Abstract: An expansible plug comprises a closed shank section formed as a shank sleeve provided with a screw channel and a longitudinally divided expansible shank, the shank being formed by two shank halves provided with staggered expansible elements which interlock to form a closed expansion region, the expansible elements being offset relative to one another and having bores arranged eccentrically relative to a center line of the expansible shank and overlapping so that an overlapping region forms a constricted screw channel, the expansion region tapering conically toward a plug tip, and one of the shank halves being connected to the shank sleeve in a joining region by a secure joint.
Patent CA-2124675-C (CA)
Inventor: CHAMBERS RONALD E
IPC: G01V1/34
Filed: 1993-10-05
Granted: 2001-12-18
Abstract: A method for displaying seismic attri-butes in an open three-dimensional format is provided. The conventional two-dimen-sional variable-amplitude traces that repres-ent the magnitude of a selected seismic attri-bute as a function of time are converted to three-dimensional format (21, 23, 25, 27, 29, 31, 33, 35, 37). The three-dimensional traces are hung beneath a model of their corre-sponding data-gathering stations (28) to provide a forest of seismic traces in a wire-frame environment (16). The open configu-ration of the seismic traces permits the inter-preter to see a perspective view of the struc-ture of the subsurface of the earth from any desired viewing angle.
Patent CA-2125346-C (CA)
Title: Process for preparing primary amines from aldehydes
Inventor: KOS CARLO
IPC: C07D213/38
Filed: 1994-06-07
Granted: 2003-12-16
Abstract: Process for preparing primary amines from aldehydes by mixing an aldehyde with a diluent, where in the case of an alcohol or of water as diluent the mixing temperature is at most 5°C to prevent the formation of the hemiacetal or the aldehyde hydrate, and bringing the mixture into contact with a mixture of ammonia, hydrogen and hydrogenation catalyst, whereby the formation of an imine is prevented, at temperatures of from 60 to 180°C and pressures of from 20 to 60 bar, at least 15 mol of ammonia being used per mol of aldehyde group, and also an apparatus for carrying out the process.
Patent CA-2127781-C (CA)
Title: Communications apparatus
Inventor: TSUMURA MIHOJI
IPC: H04L29/06
Filed: 1994-07-11
Granted: 2002-11-26
Abstract: The invention prevents unauthorized use of data in communications. When terminals with different data transmission rates are simultaneously connected to a host computer, the host computer sets a single common data communication rate to all the terminals to assure synchronization. The host computer is connected each terminal via communications network. The host computer sends a data body to each terminal over a unilateral communications link in a cyclic manner while a bilateral communications link is established between the host computer and each terminal.      Response to an individual request from each terminal, the host computer downloads descrambling data for descrambling and a loader for executing the data body. The host computer determines from among the terminals, any terminal having a communications means that sets the lowest data transmission rate, and sets the data transmission rates of the terminals simultaneously connected thereto to the lowest rate.