baber/WOPTO huggingface dataset:
Patent CA-2081862-A1 (CA)
Title: Process for the preparation of camphene by the rearrangement of .alpha.-pinene
Inventor: RITTER EBERHARD
IPC: C07C5/29
Filed: 1992-10-30
Abstract: Process for the preparation of camphene by the rearrangement of .alpha.-pinene In the preparation of camphene by the rearrangement of .alpha.-pinene, the reaction time can be shortened by carrying out the rearrangement under reflux. The heat of reaction produced is eliminated by evaporative cooling. The composition of the reaction mixture can be controlled by monitoring the temperature towards the end of the reaction.
Patent CA-2084187-A1 (CA)
Inventor: PHILLIPS WILLIAM T
IPC: A61K51/12
Filed: 1991-05-30
Abstract: The invention relates to the efficient preparation of radionuclide labeled liposomes and radionuclide-labeled iiposome-en-capsulated protein. In particular, a 99m Tc carrier is used to label preformed liposomes or liposome-encapsulated hemoglobin. 99m Tc-labeled liposomes and liposome-encapsulated 99m Tc labeled hemoglobiin are highly stable in vitro and in vivo and are suitable for a variety of clinical uses, including biodistribution imaging studies. The invention also relates to a method of labeling neutrophils using 99m technetium-labeled liposomes or liposome-encapsulated hemoglobin. A kit method useful for the con-venient preparation of 99m Tc-labeled liposomes or liposome-encapsulated hemoglobin for clinical use is also disclosed.
Patent CA-2086032-A1 (CA)
Inventor: KRAUSE EDWARD K
IPC: B29C48/09
Filed: 1992-12-22
Abstract: Described herein is a method of preparing a fluoropolymer composite tube comprising the steps of activating a formed fluoropolymer substrate by subjecting the substrate to a charged gaseous atmosphere formed by electrically ionizing a gas which contacts the substrate and thereafter applying a layer of a thermoplastic polymer to the activated fluoropolymer substrate. The ionizing step can be described as a corona discharge or an electrically formed plasma. In particular, described is a fuel pipe comprised of an inner fluorocarbon layer having electrostatic discharge resistance and hydrocarbon evaporative emission resistance and on top of and integral with, the fluorocarbon layer an outer layer of a thermoplastic polymer. Fluoropolymer layers have excellent chemical resistance.
Patent CA-2087053-A1 (CA)
Title: Power cross protection of the tip/ring interface to customer premise equipment
Inventor: HORIUCHI EDWARD M
IPC: H02H7/26
Filed: 1993-01-11
Abstract: ABSTRACT     POWER CROSS PROTECTION OF THE TIP/RING INTERFACE TO               CUSTOMER PREMISE EQUIPMENT This circuit provides power cross protection of the Tip/Ring interface with a resistor that fuses when subjected to a power cross condition.  The Tip/Ring protection circuit consists of a resistor, capacitor, and transformer.  The capacitor insures that DC current does not flow through transformer thereby reducing the transformer's physical size.  Because the reactance of the transformer and the capacitor in the frequency range from 16 to 68 Hz are small compared to the resistance, the AC REN is essentially determined by the resistance. When power cross hazardous voltages are present, the power dissipated in the resistor would be at least 10 times the rated power.  Under these conditions, the resistor will gracefully open circuit.
Patent CA-2087462-A1 (CA)
Title: Geothermal well apparatus and eccentric hanger spool therefor
Inventor: SEID G RAY
IPC: E21B33/04
Filed: 1993-01-18
Abstract: Abstract of the Disclosure A geothermal well apparatus which includes the well casing head, the expansion spool, an improved hanger spool which both supports and allows communication to a tubing string through the hanger spool and a master valve which is positioned above the hanger spool so that the presence or absence of a tubing string within the well supported from the hanger spool will not prevent the operation of the master valve.  This improved hanger spool structure allows the  use  of  the  injection  tubing string support and communication thereto solely by and through the hanger spool.   The hanger which supports the tubing string is landed within a pocket in the flow passage of the hanger spool and the weight of the string provides the setting force for the sealing means carried by the hanger.   A holddown screw is included to retain the hanger in it landed and sealed position within hanger spool.
Patent CA-2094884-A1 (CA)
Title: Cementing Apparatus
Inventor: COONE MALCOLM G
IPC: E21B33/16
Filed: 1993-04-26
Abstract: CEMENTING APPARATUS                        ABSTRACT      There is disclosed an assembly of parts for use in cementing a casing string in a well bore comprising a float collar connectible as part of the string, a cement plug lowerable onto the collar, and a wiper plug lowerable onto the cement plug, the lower end of the cement plug having threads for limited make-up with threads on the upper end of the collar and the lower end of the wiper plug having threads for limited make-up with the cement plug, so as to limit rotation between them.
Patent CA-2096488-A1 (CA)
Title: Mechanism for releasably locking sashes in door- or window frames
Inventor: DREIFERT KARL-HEINZ
IPC: E05C9/06
Filed: 1993-05-18
Abstract: A door- or window sash which is pivotable relative to a door- or window frame between open and closed positions can be releasably affixed to the frame in the closed position in response to turning of a handle which can shift an elongated carrier relative to the frame between two spaced-apart end positions. The carrier supports a series of longitudinally spaced-apart projections each of which fully engages a complementary retainer on the sash during different stages of movement of the handle from one end position to the other end position.      The arrangement may be such that the projection nearest to the handle is first to engage the complementary retainer on the sash, that the projection which is adjacent the nearest projection is next to engage the corresponding retainer, and so on. A safety device can be provided to releasably lock the carrier in the other end position.
Patent CA-2097939-A1 (CA)
Title: Pig Safety Device
Inventor: BERGER MARTIN H
IPC: F16L55/46
Filed: 1993-06-08
Abstract: A  safety  device  for  automatically  preventing  an injectile propelled within a pipeline having a terminus from inadvertently escaping the pipeline at a coupling point.    The  safety  device  automatically  engages  upon decoupling, thereby safe-guarding the pipeline operator and surrounding  area  from  injury  and/or  damage  due  to injectiles that have been previously injected within or passed  through  the  pipeline  and  that  could  otherwise inadvertently escape the pipeline upon decoupling.   A preferred embodiment of the present invention comprises a base,  means  for  clamping  and  means  for  automatically halting the progress of the injectile.  One embodiment of the  present  invention  further  comprises  means  for horizontally  positioning  the  means  for automatically halting the progress of the injectile, means for vertically positioning  the  means  for  automatically  halting  the progress of the injectile and means for displacing the means  for  automatically  halting  the  progress  of  the injectile.  The claimed invention also contemplates a means for situating the base on a pipeline terminus such that the base  is  in  the  optimal  position with  respect  to the coupling point.
Patent CA-2098846-A1 (CA)
Title: Xanthine derivatives
Inventor: FENWICK ASHLEY E
IPC: A61P37/08
Filed: 1991-12-19
Abstract: A compound of formula (I) or, if appropriate, a pharmaceutically acceptable salt thereof, wherein R1 and R2 each independently represent an alkyl group or a moiety of formula (a):  -(CH2)m-A, wherein m represents zero or an integer 1, 2 or 3 and A  represents a substituted or unsubstituted cyclic hydrocarbon radical;  R3 represents hydrogen, NO2 or a halogen atom, an alkoxy group or a group of formula NRsRt wherein Rs and Rt each independently represent hydrogen or alkyl or Rs and Rt together with the nitrogen to which they are attached form a phthalimido group, the phthalimido group being substituted or unsubstituted in the phenylene moiety or R3 represents a moiety of formula (b), wherein R5 represents substituted or unsubstituted alkyl or a substituted or unsubstituted aryl group; and R6 represents hydrogen or a group SO2R7 wherein R7 represents substituted or unsubstituted alkyl, a substituted or unsubstituted aryl group;  R4 represents SO2R8, wherein R8 represents substituted or unsubstituted alkyl or a substituted or unsubstituted aryl group, or, when R3 represents a moiety of the above-defined formula (b), then R4 represents hydrogen or a substituted or unsubstituted alkyl group or a benzyl group substituted or unsubstituted in the phenyl ring, a process for preparing such a compound, a composition comprising such a compound and the use of such a compound and composition in medicine.
Patent CA-2099292-A1 (CA)
Title: Apparatus for holding square articles
Inventor: SUMMERS CHARLES E
IPC: C03B35/12
Filed: 1993-06-28
Abstract: Apparatus for engaging and holding a non-oriented hot glass container of predetermined square cross sectional contour and closed end that includes a chuck having an open end for receiving the container and an internal valve plate for abutment with the end of the container received in the chuck. The chuck is coupled to a cam-operated arm for lowering the chuck over a container. A transition plate has a square opening contoured to be closely received over the square cross section of the container, and is mounted for free rotation adjacent to the open end of the chuck. Guide fingers project from the plate away from the open end of the chuck so as to engage the container end as the chuck is lowered over the container, and to rotate the plate relative to the chuck so that the plate opening is aligned with the square cross section of the container end. A vacuum is applied to the valve plate within the chuck for holding the container end against the valve plate. Close fit between the transition plate opening and the square cross section of the container restricts flow of air through the opening past the container, and thereby improves the ability to retain and hold the container within the chuck.
Patent CA-2099824-A1 (CA)
Title: Multi-electrode contact lens disinfection and cleaning device and method therefor
Inventor: TSAO FU-PAO
IPC: G02C13/00
Filed: 1993-07-05
Abstract: MULTI-ELECTRODE CONTACT LENS DISINFECTION AND CLEANING DEVICE AND METHOD THEREFOR                     ABSTRACT     A contact lens care device and method for cleaning and disinfecting contact lenses. The invention utilizes both principles of electrophoresis and electrolysis. The device uses a halide-containing electrolytic buffer solution for disinfecting and cleaning. A halogen concentration is generated electrolytically from the halide in the contact lens containing well by the generation of an electrical field between the two electrodes disposed in the well. The field is maintained for a time sufficient to generate a concentration of halogen which can disinfect the lens. The lens is clean electrophoretically at the same time. Then, the conversion of the halide to halogen is reversed to remove the halogen from the contact lens containing well.  This is done by generating an electrical field between the well electrodes and another electrode located in a reservoir connected to the well by a narrow channel or inert divider.  The elimination of halogen is so complete that the lens does not need to be rinsed before insertion in the eve. The device may include an automatic control means.                                             (Fig. 1)
Patent CA-2102441-A1 (CA)
Title: Two Terminal Line Voltage Thermostat
Inventor: STALSBERG KEVIN J
IPC: G05D23/24
Filed: 1993-11-04
Abstract: A two terminal line voltage thermostat includes a switch which connects one side of the line voltage to a heater load (that it drives) such as a baseboard heater with the other side of the heater being connected to the other side of the line. Common full wave rectifier components drives both a relay coil and the remaining electronics of the thermostat. In addition, an arc suppressing triac across the switch while necessarily connected to the primary side of a transformer is directly driven from the secondary which is ungrounded; the primary also provides choking for the triac .
Patent CA-2102574-A1 (CA)
Title: Valve Lifter
Inventor: RAO V DURGA N
IPC: F01L1/14
Filed: 1993-11-05
Abstract: A valve lifter of the roller type formed of a lightweight  metal  preferably  aluminum or   magnesium alloy.   A roller formed of a wear resistant ceramic material is rotatably secured to the valve lifter.  The wear/bearing  surfaces  of  the  valve  lifter  are impregnated with a solid film lubricant to provide reduced friction during operation.
Patent CA-2103215-A1 (CA)
Title: Modulation signal detection and determination by statistical estimation
Inventor: ERICKSON GARY J
IPC: H04B1/16
Filed: 1993-11-16
Abstract: MODULATION SIGNAL DETECTION AND DETERMINATION  BY STATISTICAL ESTIMATION                  Abstract of the Disclosure A  method  and  apparatus  for  the  demodulation  of received  frequency  modulated  (FM)  electromagnetic  signals. The desired output is estimated from the input by a special mathematical computation performed in the device.   A zero-crossing detector is used to provide the information necessary to estimate the output from the input.  The method will result in the superior performance of frequency modulated receivers using  this  device.  Phase  reversals,  missing  parts  of  the transmissions due to shadow effects, and ordinary noise will not  affect  the  receiver  using  this  device.    The  device consists of an integrated circuit designed to perform this specific task.
Patent CA-2103388-A1 (CA)
Title: Container for the storage and serving of food products
Inventor: FREEDLAND DARRYLE
IPC: B65D81/26
Filed: 1993-11-18
Abstract: Abstract of the Disclosure A container for the temporary storage and serving of food products such as salads is provided which comprises an outer bowl, and an inner bowl receivable within the outer bowl such that a space is defined between the outer and inner bowls for containing ice or hot packs for cooling or heating the walls of the inner bowl. A drain assembly for selectively draining excess salad dressing or condensed water out of the inner bowl is also provided which is formed in part from a bottom wall portion of the inner bowl and a drain cover plate that is slidably mounted over the wall portion. Both the bottom wall portion of the inner bowl and the drain cover plate include mutually registrable patterns of drain ports which may be slidably moved into alignment when drainage of the inner is desired. The sliding movement between the drain ports on the bottom wall portion of the inner bowl and the drain cover plate advantageously applies shear forces to food particles which may lodge in the drain ports, thereby advantageously dislodging them.
Patent CA-2103703-A1 (CA)
Title: Peptides
Inventor: TYLER MICHAEL J
IPC: A61P31/04
Filed: 1992-02-12
Abstract: The first group of peptides of the invention are known as Caerins. These peptides have the formula: W-Gly-Leu-X-Z, wherein W is hydrogen, C1-6 alkyl, C6-10 aryl, C7-16 aralkyl or C1-20 acyl; X is a peptide sequence comprising 20 to 23 amino acid residues; and Z is hydroxy, amino, C1-6 alkylamino, di-(C1-6 alkyl)-amino, C1-18 alkoxy or C7-18 aralkoxy. Generally, Caerins have a molecular weight of between 2300 and 2700. The second group of peptides of the invention are known as Caeridins. These peptides have the formula: W-Gly-Leu-Y-Z, wherein W is hydrogen, C1-6 alkyl, C6-10 aryl, C7-16 aralkyl or C1-20 acyl; Y is a peptide sequence comprising 8 to 13 amino acid residues; and Z is hydroxy, amino, C1-6 alkylamino, di-(C1-6 alkyl)-amino, C1-18 alkoxy or C7-18 aralkoxy. Generally, Caeridins have a molecular weight of between 1100 and 1600. Representative members of both groups of peptides may be isolated from the skin or glands of Litoria splendida and Litoria caerulea. Some of the present peptides have potent physiological activity. For example, one of the Caerins has potent antibiotic activity against a variety of bacteria. Some of the peptides also have anti-viral activity, and may have anti-fungal activity. The peptides may also be used for food preservation.
Patent CA-2105174-A1 (CA)
Inventor: GOMEZ MARTINEZ PABLO
IPC: F25B17/08
Filed: 1991-12-31
Abstract: 2105174 9313368 PCTABS00024 The present invention relates to a new system for refrigeration by adsorption through decomposition of the refrigeration cycle into four distinct phases: heating, desorption, cooling and adsorption which are carried out in at least four different exchangers so that at each stage at least one of them is in one of the phases.  In this way, it is possible to establish a flow of the heat carrier from the exchanger in the cooling phase to the exchanger in the heating phase thereby generating a heat recovery which increases the power of the system. The present invention also relates to a device appropriate for the application of the system. Amongst various applications, are included heat pumps and a drying machine.
Patent CA-2107879-A1 (CA)
Title: Proteinaceous lipid-containing particles
Inventor: ADAMS SALLY E
IPC: C07K14/145
Filed: 1992-04-10
Abstract: Proteinaceous, lipid-containing particles can be prepared by co-expressing in a host cell (i) a self-assembling protein moiety in circumstances where the protein assembles to form a core, which then buds off from the host cell, thereby acquiring a lipid envelope derived from the host cell membrane and (ii) a membrane-bound protein moiety, which becomes integrated in the lipid envelope.  The particles have a wide variety of uses. They may be used as an antigen presentation system, or they may for example have site-specific targeting ability, fusogenic properties, enzymic activity, cytotoxic activity, diagnostic utility and/or pharmaceutical activity.
Patent CA-2107966-A1 (CA)
Title: Compositions comprising demilitarized energetic materials (demex)
Inventor: VILLAMAGNA FORTUNATO
IPC: C06B21/00
Filed: 1993-10-07
Abstract: ABSTRACT          "COMPOSITIONS COMPRISING DEMILITARIZED ENERGETIC MATERIALS (DEMEX)"     The present invention is directed toward the redirected use of energetic materials formerly used for military purposes that can be advantageously combined with other materials to form commercial explosives.
Patent CA-2108626-A1 (CA)
Title: Method and system for performing endoscopic surgery at locations where tissue inserts into bone
Inventor: MCNAMARA GREGORY
IPC: A61B17/32
Filed: 1993-10-18
Abstract: METHOD AND SYSTEM FOR PERFORMING ENDOSCOPIC SURGERY     AT LOCATIONS WHERE TISSUE INSERTS INTO BONE           Abstract of the Disclosure An endoscopic system and method for performing endoscopic surgery at locations where tissue inserts into bone which includes a sleeve member, obturator, cutting and excision instruments, and a marking and insertionassembly wherein the sleeve member has an expanded portal through which instrument access and improved visualization can be performed at arcuate lines of insertion of tissue into bone. The sleeve member can include a flange for engaging tissue along the line of insertion and exposing the bone and measurement means for gauging precisely the reduction or resection of bone. An alternative embodiment of the sleeve member has a non-uniform aperture with an instrument portion and a register portion providing increased space and maneuverability forinstruments when opening at the portal on tissue or bone that can include the flange. Cutting instruments are provided with an extension portion to extravasate from tissue and palpitate underlying tissue. An marking and insertion assembly for use in heel surgeries to remedy plantar fasciitis and in conjunction with a lateral radiograph provides precise location of an entry incision and precise medial to lateral insertion of a guide wire forming a channel for the sleeve member. The method and system also provides for minimal incision surgery in the caudal release of the plantar fascia and reduction of a spur on the os calcis.
Patent CA-2109004-A1 (CA)
Title: Process for manufacturing a1-mg alloy sheets for press forming
Inventor: SHOJI RYO
IPC: C22F1/047
Filed: 1993-10-22
Abstract: ABSTRACT OF THE DISCLOSURE      This invention relates to a process for manufacturing Al-Mg alloy sheets with high Mg content for press forming. The composition of an Al-Mg alloy slab consists of 5 to 10 wt.% of Mg, 0.0001 to 0.01 wt.% of Be, totally 0.01 to 0.2 wt.% of one or more than two species out of Mn, Cr, Zr and V, 0.005 to 0.1 wt.% of Ti, or both 0.005 to 0.1 wt.% of Ti and 0.00001 to 0.05 wt.% of B, Fe and Si as impurities respectively with the content restricted to be less than 0.2 wt.%, and the remainders consisting of other inevitable impurities and Al.  The maximum grain diameter of the alloy slab is less than 1000 µm.   The homogenization conditions of the alloy slab are set such that a temperature for homogenization is in the range of 450 to 540°C and a time for the homo-genization is not more than 24 hrs, and the conditions for the hot rolling are set such that a hot mill entrance temperature is in the range of 320 to 470°C and each reduction per pass of at least the initial three times of rolling pass is not more than 3%.   This process improves the hot workability of Al-Mg alloy sheets with high Mg content, and cracks are prevented from being generated at the time of hot rolling to improve the productivity.  When 0.05 to 0.8 wt.% of Cu is contained in the Al-Mg alloy slab, in addition to the above-mentioned component compositions, the strength and elongation of the resultant alloy sheets can be further improved.
Patent CA-2109091-A1 (CA)
Title: Continuous process for biocatalytic desulfurization of sulfur-bearing heterocyclic molecules
Inventor: MONTICELLO DANIEL J
IPC: C12N1/20
Filed: 1992-04-08
Abstract: A continuous cyclic process for desulfurizing a petroleum liquid which contains organic sulfur molecules, a significant portion of which are comprised of sulfur-bearing heterocycles. This process involves oxygenating the petroleum liquid and treating it with a biocatalyst capable of catalyzing the sulfur-specific oxidative cleavage of organic carbon-sulfur bonds in sulfur-bearing aromatic heterocyclic molecules such as dibenzothiophene. A particularly preferred biocatalyst is a culture of mutant Rhodococous rhodocrous) bacteria, ATCC No. 53968. In the present process, the activity of this biocatalyst is regenerated; it can be used for many cycles of treatment. A system for conducting the continuous cyclic process of biocatalytic desulfurization of petroleum liquids is also disclosed.
Patent CA-2109846-A1 (CA)
Title: Adjustable springs for pressure vessel closure
Inventor: SMITH JOHN D
IPC: F16J13/14
Filed: 1993-03-18
Abstract: A closure device for a lower opening of a coke drum pressure vessel (11) is quick acting. The opening has an annular flange (15).  An annular movable support (39) encircles the pressure vessel (11) above the flange (15). A stationary support (27) secures to the flange below the movable support (39). A number of coil springs (37) are evenly spaced around the stationary support (27) between the stationary support (27) and the movable support (39).  Hydraulic cylinders between the movable and stationary support move the movable support (39) axially relative to the stationary support (27). A head (17) will abut the flange (15). Hooks (41) mounted to the movable support (39) will engage the head (17) and pull the head (17) tightly upward into engagement with the flange (15) when the retracting cylinders are released. Pivotal cylinders (55) will pivot the hooks (41) between engaged and disengaged positions. The bias of the springs (37) is independently adjustable.