baber/WOPTO huggingface dataset:
Patent CA-2061867-A1 (CA)
Title: Water vapor permeable, pressure sensitive adhesive
Inventor: BRUNSVELD GERRIT H
IPC: C09J133/06
Filed: 1992-02-26
Abstract: A water vapor permeable, pressure sensitive adhesive composition comprising a hydrophilic, all acrylic polymer system, free of additives and having enhanced water vapor transmission which contains a significant high amount of hydroxyalkyl acrylate/methacrylate. This adhesive composition is particularly useful in surgical or medical dressing applications.
Patent CA-2062056-A1 (CA)
Title: Retractable folding bed
Inventor: SALMON CALVIN A
IPC: A47C19/00
Filed: 1992-02-28
Abstract: Abstract A retractable folding bed for use in combination with a mattress, said bed comprising a box frame for retaining said mattress and having a first end and a second end remote therefrom, a first side and a second side remote therefrom, an inner base upon which said mattress rests, and an outer base having a decorative outer surface; a first support stand upon which said box frame adjacent said first end is rotatably mounted; a second support stand to which said box frame adjacent said second end is rotatably connected; and biasing means connected to said first support stand and said box frame adjacent said first end.  The second support stand is readily rotated around the top of the bed from its position as a bed support and substantially hidden from view adjacent the mattress when bed is upright.  Such a stand structure arrangement provides ease of operation with an imposed decorative unit.
Patent CA-2062882-A1 (CA)
Title: Method of making fused silica
Inventor: BLACKWELL JEFFERY L
IPC: C03B20/00
Filed: 1992-03-12
Abstract: Abstract of the Disclosure This invention relates to the production of high purity fused silica glass through oxidation and/or flame hydrolysis of a halide-free, organosilicon-R compound in vapor form having the following properties:     (a)  producing a gas stream of a halide-free silicon-containing compound in vapor form capable of being con-verted through thermal decomposition with oxidation or flame hydrolysis to SiO2;     (b)  passing said gas stream into the flame of a combustion burner to form amorphous particles of fused SiO2;     (c)  depositing said amorphous particles onto a support; and (d)  either essentially simultaneously with said deposition or subsequently thereto consolidating said deposit of amorphous particles into a virtually nonporous body; the improvement comprising utilizing a halide-free, organosilicon-R compound in vapor form having the follow-ing properties:          (1)  a Si-R bond dissociation energy that is no higher than the dissociation energy of the Si-O bond;          (2)  a boiling point no higher than 350°C; and (3)  which, upon pyrolysis and/or hydrolysis, will produce decomposition products beside SiO2 which are deemed to be environmentally safe or the emissions are below acceptable governmental standards.
Patent CA-2063455-A1 (CA)
Title: Spindle sleeve for protecting an axle not equipped with wheel assemblies
Inventor: CARLES CHARLES
IPC: B65D85/68
Filed: 1992-03-19
Abstract: ABSTRACT   A protective sleeve which includes an axially extending main portion having a first end closed and a second open end including an annular flange. The internal profile of the sleeve is selected to provide close conformity lo the external profile of the spindle. The sleeve is constructed from a thermosettable vinyl and may be remelted and remolded if any damage occurs to the sleeve during its life and/or at the end of its life. Additionally, the closed end portion of the sleeve includes an aperture which provides a vent to any air trapped between the sleeve and the spindle during installation, as well as, providing an opening to selectively apply compressed air to the region between the sleeve and the spindle such that radial expansion of the sleeve may facilitate axial displacement during the removal process.          - i -
Patent CA-2063856-A1 (CA)
Title: Angiotensin ii antagonists incorporating a substituted thiophene or furan
Inventor: ALLEN ERIC E
IPC: C07D471/04
Filed: 1992-03-24
Abstract: TITLE OF THE INVENTION ANGIOTENSIN II ANTAGONISTS INCORPORATING A SUBSTITUTED THIOPENE OR FURAN            ABSTRACT OF THE DISCLOSURE  Substituted heterocycles attached through a methylene bridge to novel substituted phenyl thiophene or phenyl furan derivative of the Formula are useful as angiotensin II antagonists.                               I
Patent CA-2066240-A1 (CA)
Title: Interleukin-4 receptors
Inventor: GALIZZI JEAN-PIERRE
IPC: C07K14/00
Filed: 1990-09-05
Abstract: Nucleic acids are provided which encode mammalian interleukin-4 receptors, and which serve as probes for related receptors by cross hybridization. Soluble forms of human interleukin-4 receptors are useful as antagonists of interleukin-4 in the treatment of conditions associated with excessive IgE production.
Patent CA-2067995-A1 (CA)
Inventor: CARVER ROBERT G
IPC: B65D71/00
Filed: 1992-05-05
Abstract: A display carrier has top and bottom walls, first and second sidewalls, at least one vertical partition wall and a horizontal dividing member in the sleeve.   The vertical partition wall extends between the top and bottom walls to define adjacent interior compartments within the sleeve.  The horizontal dividing member may be connected to the first and second sidewalls and comprises (1) a first horizontal panel that is cut primarily from the bottom wall and is connected to the first sidewall along a horizontal fold line where the panel is connected to the first sidewall; and (2) a second horizontal panel that also is cut primarily from the bottom wall and is connected to the partition wall along a horizontal fold line where the panel is connected to the partition wall. Alternatively,  the horizontal dividing member comprises a horizontal panel extending continuously as a single piece and having opposed ends which do not reach their respective sidewalls.   The horizontal panel is cut primarily from a vertical partition wall as a single piece and is connected to the partition wall along a pair of aligned horizontal hinge lines where the panel intersects and is integral with the partition wall.  Support members cut primarily from the bottom wall  are  used  for  supporting  the  opposed  ends  of  the horizontal panel to form a substantially horizontal dividing member.
Patent CA-2068274-A1 (CA)
Title: Self-focussing antenna array
Inventor: EAST THOMAS W R
IPC: H02J17/00
Filed: 1992-05-08
Abstract: ABSTRACT       A phased array for transmitting to a microwave powered aircraft is focused and steered by feedback from the aircraft.  Each antenna of the array is phase modulated in turn, and the resulting amplitude modulation of the field at the aircraft is used to calculate a correction to the antenna phase, which is telemetered back to the array system and applied to the antenna phase shifter.
Patent CA-2068490-A1 (CA)
Title: Apparatus for analyzing cells in urine
Inventor: NAKAMOTO HIROYUKI
IPC: G01N33/493
Filed: 1992-05-12
Abstract: APPARATUS FOR ANALYZING CELLS IN URINE ABSTRACT OF THE DISCLOSURE:       The present invention relates to an apparatus for automatically analyzing cells in urine using flow cytometry. The present invention includes means for detecting scattered light and fluorescent light from individual cells in a urine specimen by flow cytometry, means for obtaining data indicative of scattered-light intensity and data indicating the number of peaks of scattered light from the fluorescent light, means for obtaining data indicative of fluorescent-light intensity from the fluorescent light, means for converting the scattered light into pulse signals, means for converting pulse width into cell-diameter data in accordance with known cell diameters, means for storing actual-measurement data indicating the characteristics of each cell in memory beforehand as cell judgement values, and means for classifying and enumerating various cells in the urine automatically by analyzing the data indicative of the detected cells in accordance with the cell judgement values.
Patent CA-2069798-A1 (CA)
Title: Circuit breaker with interlock for welded contacts
Inventor: PIPICH CHARLES W
IPC: H01H73/02
Filed: 1992-05-28
Abstract: Abstract of the Disclosure A circuit  breaker  includes  an  interlock  which prevents movement of the handle to the off position when the contacts are welded closed.   The interlock includes a pair of floating links which jam between slots in arms of the yoke of a spring powered operating mechanism which carries the handle, and recesses in the rotatable cross-bar carrying the movable contact arms.  The recesses are offset from the rotational axis of cross-bar so that an attempt to move the switch to the off position generates a moment which will break open lightly welded contacts.
Patent CA-2070049-A1 (CA)
Title: Bundle Pack
Inventor: FOCKE HEINZ
IPC: B65D5/54
Filed: 1992-05-29
Abstract: A b s t r a c t : (referring to Fig. 1) A bundle pack, especially a cigarette carton, formed from  a plurality  of  cuboid packages which are wrapped in an outer wrapper made of cardboard, paper or plastic film has  to  be designed  such that the individual cigarette packages can be easily marked on one outer side without  opening  the  outer wrapper.  For  this  purpose,  the outer wrapper is provided with cut-outs which are located in the region of  the  outer sides  of the packages. Adjacent cut-outs (17) are delimited from one another by narrow webs (19) of  the  outer  wrapper (14).
Patent CA-2073550-A1 (CA)
Inventor: SPORRI ANTHONY J
IPC: B65D83/14
Filed: 1992-07-09
Abstract: An aerosol can piston and system, employing an aerosol can with a sidewall which is necked in at the bottom and a low mass piston with recessed, depending legs.  The piston has a lower skirt portion, the outermost diameter of which is slightly smaller than the diameter of the inner wall of the can above the necked-in portion.  The legs depending from the piston have an effective outer diameter somewhat less than the inside diameter of the lower necked-in portion of the can sidewall and depend sufficiently downward to sit on the can bottom countersink while maintaining the skirt of the piston at a level just above the level at which the can sidewall necks inwardly.  The legs thus stabilize the piston and prevent tipping and canting.  In an alternative embodiment the piston also includes a plurality of vertical columns protruding from its sidewall to further stabilize the piston.
Patent CA-2074408-A1 (CA)
Title: Bipolar instrument utilizing one stationary electrode and one movable electrode
Inventor: PARINS DAVID J
IPC: A61B18/00
Filed: 1992-07-22
Abstract: BIPOLAR INSTRUMENT UTILIZING ONE STATIONARY ELECTRODE       AND ONE MOVABLE ELECTRODE                     ABSTRACT OF THE DISCLOSURE    An electrosurgical instrument for the removal of tissue polyps and  the  like  is  disclosed.    It  features  a bipolar pair  of conductive electrodes for the cutting of tissue in which at least one  electrode  is moveable  in  relation to the  other.   These electrodes are mounted relative to an insulating plug, which is secured at the distal end of a tubular member.  Pressure exerted on a thumb loop shifts the position of one electrode relative to the other.  Upon application of RF voltage, the distance at which the electrodes are placed controls the amount of arcing which will occur between electrodes, when placed within a proper range.  The electrodes are supplied with power from a standard RF energy source, controlled from a foot or hand switch.    The insulating plug may further include metal traces disposed on the peripheral surface.  When energized, these traces function as a bipolar pair of electrodes for effecting electrocoagulation of tissue and blood.
Patent CA-2077626-A1 (CA)
Title: Translation of a neural network into a rule-based expert system
Inventor: FU LI M
IPC: G06N3/04
Filed: 1992-09-04
Abstract: ABSTRACT OF THE DISCLOSURE A rule-based expert system is generated from a neural network.  The neural network is trained in such a way as to avoid redundancy and to select input weights to the various processing elements in such a way as to nullify the input weights which have smaller absolute values.  The neural network is translated into a set of rules by a heuristic search technique. Additionally, the translation distinguishes between positive and negative attributes for efficiency and can adequately explore rule size exponential with a given parameter.  Both explicit and implicit knowledge of adapted neural networks are decoded and represented as if - then rules.
Patent CA-2078675-A1 (CA)
Title: Improvements in or relating to subsea control systems and apparatus
Inventor: LOTH WILLIAM D
IPC: E21B33/035
Filed: 1991-03-28
Abstract: A subsea actuator for operating a valve (20) or the like comprises a movable wall member (19) fixed to an axially slidable     T stem and separating a pressure chamber (2) from a space (3) which is subjected to the hydrostatic pressure of ambient seawa-ter. A selector valve (11) is operable to connect the chamber (2) to a source of pressurized fluid, e.g. a source of pressurized gas (14), or to a drain e.g. connected to atmosphere by a pressure vessel (12) and pipe (15). A blowdown valve (16) and dump valve (13) are provided for ejecting liquid collected in the vessel (12). The space (3) may be connected to an open-bottomed container (17) to provide a gas barrier between the seawater and the interior of the actuator. Supply of pressurized gas to the chamber (2) causes the member (19) to be driven forwards, gas being allowed to flow past the member into the space (3) during this movement to assist the expulsion of water from the container (17) and the expulsion of any contaminants from within the actuator. When the chamber (2) is connected to atmospheric pressure the hydrostatic pressure of the seawater causes the member (19) to be driven in the reverse di-rection.
Patent CA-2079139-A1 (CA)
Title: Method of imparting delayed wettability of a nonwoven web
Inventor: NOHR RONALD S
IPC: D04H1/42
Filed: 1992-09-25
Abstract: Abstract A method of forming a nonwoven web having delayed wet-tability, in that the web is not wettable by water upon its formation but becomes wettable within from about three hours to about 30 days thereafter without any post-formation treatment, which method involves the steps of (1) melting a mixture consisting of a thermoplastic polyolefin, an additive, and a retardant coadditive; (2) forming fibers by extruding the resulting melt through under defined conditions of shear and throughput; (3) drawing the fibers; and (4) collecting the fibers on a moving foraminous surface as a web of entangled fibers. The additive is a defined polysiloxane polyether having a molecular weight of from about 700 to about 1,300 and a polydispersity of from about 1.3 to about 3Ø The additive is present in an amount of from about 1.8 to about 3.0 percent by weight, based on the amount of thermo-plastic polyolefin. The retardant coadditive is a high surface area particulate inorganic or organic material which is insoluble in the polymer at both ambient and melt-extrusion temperatures, is present in an amount of from about 0.1 to about 1 percent, based on the weight of the thermoplastic composition, has a surface area of from about 50 to about 500 m2, and is capable of being at least partially coated by the additive.
Patent CA-2079416-A1 (CA)
Inventor: KNIFTON JOHN F
IPC: C07C43/04
Filed: 1992-09-29
Abstract: ONE STEP SYNTHESIS OF METHYL t-BUTYL ETHER FROM t-BUTANOL USING FLUOROPHOSPHORIC ACID-MODIFIED MONTMORILLONITE CLAYS                     (D#81,157-F) ABSTRACT OF THE DISCLOSURE           A method is disclosed wherein t-butanol is reacted with methanol in a reaction zone in one step to provide methyl tert-butyl ether and the improvement of accomplishing the reaction which comprises: a.   Using a catalyst comprising a montmorillonite clay treated with a fluorophosphoric acid, b.   continuously contacting said t-butanol and methanol in a molar amount of about 0.1 to 10 moles of methanol per mole of t-butanol with said catalyst at a temperature of about 20°C to about 250°C and a pressure of about atmospheric to about 1000 psig to obtain the methyl tert-butyl ether product.           CLK:pg 81157.APP
Patent CA-2082209-A1 (CA)
Title: Cationic polymers
Inventor: COATES JACQUELINE A
IPC: D21H17/54
Filed: 1992-11-05
Abstract: Case 157-5522 ABSTRACT   A cationic polymer useful as an additive in paper-making processes comprises at least one moiety of the formula I       wherein R2 is selected from hydrogen and R4; R3 is selected from hydrogen and C1-C3 alkyl;   the groups R4 and R5 are independently selected from C1-C6 alkyl, cycloalkyl, C2-C6 alkenyl, aryl and araikyl, these being optionally substituted with at least one group which is selected from C1-C6 hydroxyalkyl, C1-C6 aminoalkyl, C1-C6 sulphoalkyl and C1-C6 carboxyalkyl, carboxy, and sulpho groups, where present, being in either acid or salt form, or the groups R4 and R5 together with the nitrogen atom to which they are attached form a heterocyclic ring which may optionally comprise other heterocyclic atoms;   R6, R8, R9 and, where present, R7 and R10 are independently selected from hydrogen, a hydrocarbon radical having from 1 to 8 carbon atoms and being bonded to the nitrogen atom through an aliphatic carbon atom on this radical, a radical having a sequence of from 4 to 8 carbon atoms which sequence is interrupted by -O- or -NR11-, with the proviso that a maximum of one of R8, R9, R10 shall contain a moiety -NR11-, R11 being selected from hydrogen, methyl, ethyl and a group of the formula Case 157-5522   wherein R12, R13 and, where present, R14 are independently selected from hydrogen, methyl and ethyl, or R12 and R13 together with the nitrogen atom to which they are attached form an aliphatic heterocycle with from 4 to 5 carbon atoms, and m is an integer from 1-3; X is selected from C3-C6 alkylene, C1-C6 hydroxyalkylene and C4-C6 alkylene interrupted by -0-; and n is an integer of from 0 to 20.
Patent CA-2082771-A1 (CA)
Inventor: HO VU Q
IPC: H01L21/768
Filed: 1992-11-12
Abstract: A method is provided for forming interconnect structures for ULSI integrated circuits.  Preferably, a barrier layer of a conductive material which forms a seed layer for metal deposition is provided selectively on the sidewalls and bottom of interconnect trenches defined in a dielectric layer, and a conformal layer of metal is selectively deposited on the barrier layer within the interconnect trench.  Advantageously, the metal layer forming interconnect comprises a layer of copper which is deposited by chemical vapour deposition from an organo-metallic precursor at low temperature.  Etching back and planarization of the barrier layer and the metal layer is accomplished by chemical mechanical polishing.  Second and subsequent levels of metallization are provided by repeating the process steps, as required, to provide another dielectric layer defining interconnect trenches, selectively lining the trenches with a conformal barrier layer and then filling the trenches with selective deposition of a conformal conductive layer of metal, with planarization of the resulting conformal layers by chemical mechanical polishing.  Preferably, via holes forming contacts to underlying device structures are filled with copper or tungsten.
Patent CA-2084924-A1 (CA)
Title: Start-up of continuous butyric acid fermentor
Inventor: GABELMAN ALAN
IPC: C12P7/40
Filed: 1992-12-09
Abstract: b:ffi4360.ap2 PATENT                                   Gabelman Case 1 START-UP OF CONTINUOUS BUTYRIC ACID FERMENTOR     ABSTRACT OF THE DISCLOSURE    A  process for starting up the continuous production of butyric acid by fermentation of a medium containing a starting amount of a nutrient substrate and a microorganism that converts the nutrient into butyric acid, that avoids an excess of nutrient in the fermentation broth and comprises the steps of (1) fermenting in a fermentor in batch style an amount of the medium that is substantially less than the working volume of the fermentor until the amount of the nutrient not yet converted is no more than a small fraction of the starting amount, (2) adding medium to the fermentor without removing any of the fermentation broth, until it contains approximately its working volume, then, (3) while continuing the addition, removing the fermentation broth containing the butyric acid product at a continuous rate that maintains a constant volume of medium in the fermentor, and thereafter maintaining continuous operation of the fermentation.
Patent CA-2086850-A1 (CA)
Title: Toner and developer compositions
Inventor: MARSH DANIEL G
IPC: G03G9/087
Filed: 1993-01-07
Abstract: ABSTRACT OF THE DISCLOSURE A toner comprised of a blend of three copolymers of, for example, poly(styrene-butadiene), a second copolymer of styrene acrylate, and a third polymer of styrene acrylate with a higher molecular weight than the second copolymer, pigment particles, and charged additive components.
Patent CA-2087158-A1 (CA)
Title: Method for the preparation and purification of a mixture of glycosphingolipids free from contamination by non-conventional viruses
Inventor: DELLA VALLE FRANCESCO
IPC: C07H19/00
Filed: 1991-05-16
Abstract: The process of the invention relates to a process for the preparation of a ganglioside mixture, free from contaminants associated with non-conventional, life-threatening viruses, without altering the biological and pharmacological characteristics of the mixture on the central and peripheral nervous systems.
Patent CA-2087902-A1 (CA)
Inventor: DESAI NARENDRA R
IPC: A61K47/26
Filed: 1993-01-22
Abstract: Liposomal pharmaceutical formulations incorporating porphyrin photosensitizers useful for photodynamic therapy or diagnosis of malignant cells. The liposomal formulations comprise a porphyrin photosensitizer, particularly the hydro-mono benzo-porphyrins (BPD) having light absorption maxima in the range of 670-780 nanometers, a disaccharide or polysaccharide and one or more phospholipids.
Patent CA-2088731-A1 (CA)
Title: Packaging with integrated partitioning
Inventor: SPECKER ERICH
IPC: B65D5/54
Filed: 1993-02-03
Abstract: Abstract The support blank (1) forms the actual packaging envelope with the parallel side walls (4, 4'), which run parallel to the corrugations (3). These corrugations are formed from a shaped blank (2) which is connected with the support blank at the corrugation valleys. An end corrugation (6, 6') is in each case arranged directly next to the parallel side walls (4, 4'), the outer wall (7) of which is no longer connected with the support blank. The outer wall lies loosely against the parallel side wall and through that is held in position.                                               (Fig. 2)
Patent CA-2091936-A1 (CA)
Title: Protective hockey helmet
Inventor: CARVETH WILLIAM H
IPC: A42B3/06
Filed: 1993-03-18
Abstract: A helmet that prevents catastrophic neck injuries; in the preferred embodiment, for hockey, a high-impact plastic casing is snagged on top of the player's head by cantilever supports from the inside sides of the casing; a flange at the bottom of the casing is formed so that a collision such as a head-on collision on top of the head will drive the helmet into contact with the torso, thus transmitting all collision force to the torso. The top of the helmet is high enough that the top of the head does not contact the underside of the top of the helmet under the peak collision force. Further, in the most dangerous high-incident-angle collisions, a tip projecting rearwards from tho top of the helmet, in conjunction with rollers on the top surface, act to position the helmet for symmetrical transmission of force axially. A second embodiment, without the tip and rollers, is also described, as is a third with a rear extension segment to prevent the flange from contacting the back of the neck in cases of rearwards flexure of the neck.