baber/WOPTO huggingface dataset:
Patent CA-2055778-A1 (CA)
Title: High density leucite and / or pollucite based ceramics from zeolite
Inventor: BEDARD ROBERT L
IPC: C04B35/18
Filed: 1991-11-18
Abstract: Substantially crack free ceramic articles having less than 5% porosity are prepared by starting with a potassium or cesium or rubidium exchanged zeolite or mixtures thereof, the zeolite characterized in that it has a SiO2/AI2O3 ratio of 3.5 to 7.5, and calcining it at a temperature of 900° to 1100°C for a time sufficient to collapse the zeolite framework and provide an amorphous powder. Next, the amorphous powder is formed into a shaped article and the article is sintered at a temperature of 1150° to 1400°C for a time of 0.5 to 12 hours to give a ceramic article whose principal crystalline phase is tetragonal leucite when potassium exchanged zeolite is used, or when the zeolite is exchanged with cesium, a ceramic article whose principal crystalline phase is pollucite is obtained, or when a rubidium exchanged zeolite is used a ceramic article whose principal crystalline phase is rubidium leucite is obtained, and when a potassium/cesium exchanged zeolite is used a ceramic article having as its principal crystalline phase a leucite/pollucite solid solution is obtained. The addition of pollucite to the leucite article provides a ceramic article whose thermal expansion coefficient can be varied from 2 x 10-6 to 27 x 10-6°C-1 as measured over the range 50°-700°C.      This invention also relates to this leucite/pollucite ceramic article.
Patent CA-2059332-A1 (CA)
Title: Vehicle rollover warning device
Inventor: HERSCHEID STEPHEN J
IPC: G01C9/10
Filed: 1992-01-14
Abstract: ABSTRACT OF THE DISCLOSURE A device is disclosed which is intended to indicate to the user the tilt and inclination of a vehicle in which the device is installed, simultaneously.  The device includes an outer sealed sphere containing an inner partial sphere which may pivot and rotate within the outer sphere.  Light emitting diodes mounted on the inner walls of the outer sphere illuminate the inner chamber of the outer sphere.  The outer sphere is opaque except for an indicator  portion  having  indicia  allowing  indication of inclination.  The user may view through the indicator portion and see indicia on the inner sphere which indicate tilt.
Patent CA-2063332-A1 (CA)
Inventor: TANAKA HARUHIKO
IPC: C08F210/08
Filed: 1992-03-18
Abstract: T-3179 (US) JOO:sl POLYBUTENE RESIN LAMINATE         Abstract of the Disclosure A polybutene resin laminate comprising an intermediate layer (a) mainly comprising a butene-propylene copolymer (A) containing 15 to 40% by mole of propylene, said copolymer (A) having a melt flow rate in the range of from 0.1 to 30 g/10min.; and an upper surface layer (b1) and a lower surface layer (b2) disposed on both sides of said intermediate layer (a), said surface layers mainly comprising a polyolefin resin (B).  The laminate has excellent transparency, stretchability, flexibility, smoothness, heat sealability and self-adhesion, and may be stretched without undergoing generation of wrinkles and decrease in transparency and fastening properties.
Patent CA-2067332-A1 (CA)
Title: Slab-like concrete block, as well as process and device for manufacturing the latter
Inventor: HAGENAH GERHARD
IPC: B28B3/02
Filed: 1990-10-05
Abstract: When concrete paving stones are used as a ground covering, the noise generated by traffic moving thereon constitutes a drawback.  To reduce the propagation of noise, the invention proposes concrete blocks which are of a considerably larger format that the customary paving stones. The upper side of the concrete block consists of a sound-absorbing layer (13) of porous concrete. The underside of the concrete block is curved inwards so that the edge regions are more heavily loaded, thus ensuring stability. To channel the surface water away, the concrete block is provided at the sides with vertical slits (16) which are adjacent to the absorption layer (13) consisting of porous concrete.
Patent CA-2068019-A1 (CA)
Title: Substituted 2,3-dihydroperimidine stabilizers
Inventor: LUZZI JOHN J
IPC: C09K15/30
Filed: 1992-05-05
Abstract: SUBSTITUTED 2,3-DIHYDROPERIMIDINE STABILIZIERS            Abstract of the Disclosure N-Allyl and N-methylene-thio substituted 2,3-dihydroperimidine compounds are very effective antioxidant stabilizers for organic material subject to oxidative or thermal degradation, particularly for lubricant compositions.
Patent CA-2069425-A1 (CA)
Title: Interface for orbital replacement units
Inventor: MEE FRANCIS HERBERT ARTHUR
IPC: B64G4/00
Filed: 1991-10-03
Abstract: An interface for orbital replacement units consists of a body having a reduced waist portion and V-shaped clamping faces that project laterally outwardly from opposite sides of the waist portion for engagement by an end effector. The interface may also incorporate a latching mechanism that is used for releasably latching the interface and the orbital replacement unit to which it is attached to a compatible system. [The] A latch actuator is provided which serves to release the latch mechanism when the interface is engaged by a complimentary end effector.
Patent CA-2071252-A1 (CA)
Title: Natural gas cylinder fitting and solenoid valve
Inventor: GRANT MICHAEL D
IPC: F17C13/04
Filed: 1992-06-15
Abstract: A natural gas cylinder fitting and solenoid valve includes a solenoid-actuated poppet co-operating with an o-ring clamped to the floor of the valve cavity to selectively prevent or permit the passage of gas between a gas line and a natural gas cylinder.  In an internally mounted embodiment, a fitting body adapted to be engaged in the neck of a cylinder isolates a low pressure region containing the electrical components of the solenoid.
Patent CA-2071629-A1 (CA)
Inventor: COLCA JERRY R
IPC: A61K31/00
Filed: 1991-01-23
Abstract: The present invention provides a method for treating hypertension in insulin resistant patients comprising the administra-tion of an insulin agent, particularly ciglitazone or pioglitazone.
Patent CA-2072999-A1 (CA)
Title: Positioning ring for a hydraulically operated warning device
Inventor: CRUMB DONALD A
IPC: B60T8/26
Filed: 1990-11-01
Abstract: The positioning ring (44) for a hydraulically operated warning device (80) may be utilized for any hydraulically movable piston or sleeve (52) which, when properly assembled, causes a warning device (80) to effect an initial mode of response. The positioning ring (44) has a reduced inner diameter portion (41) separated from an enlarged inner diameter portion (43) by way of a radial shoulder (42). The enlarged inner diameter portion (43) abuts a shoulder (17) of a surrounding housing (11) and the radial shoulder (42) abuts a shoulder (59) of the piston or sleeve (52). The housing (11) may contain a warning device (80) which engages the piston or sleeve (52) such that if the piston or sleeve (52) is displaced in an axial direction the warning device (80) is operated.  Should the centering ring (44) be misassembled or not included in the assembly, either the misassembled positioning ring (44) or the lack of the positioning ring (44) permits the piston or sleeve (52) to be moved to a position where the warning device (80) is operated to provide an indication that the positioning ring (44) is either misassembled or missing from the assembly.
Patent CA-2074013-A1 (CA)
Title: Brake assembly for rotating rod
Inventor: MILLS ROBERT A R
IPC: B60T13/20
Filed: 1992-07-16
Abstract: ABSTRACT OF THE DISCLOSURE         When power to the drive for a progressing cavity pump is interrupted, the torsion in the sucker rods used to rotate the pump must be braked, i.e. released in a controlled manner.  The centrifugal brakes currently used for this purpose are often unnecessarily structurally complicated and difficult to service.  A relatively simple alternative is a hydraulically operated brake system including a hollow shaft mounted on the polished rod at the top end of the sucker rod string for rotation with the latter, a housing defining a reservoir for lubricating oil containing bearings for the hollow shaft, a bi-directional pump connected to the shaft for pumping fluid from a reservoir in the housing in a closed circuit back to the reservoir during rotation of the rod string and shaft in one direction, and for pumping fluid in the opposite direction to a disc brake associated with the shaft and rod string during back spin or reverse rotation of the rod string.
Patent CA-2075318-A1 (CA)
Title: Excess flow valve
Inventor: GLAZEBROOK RICHARD J
IPC: F16K17/34
Filed: 1992-08-05
Abstract: ABSTRACT     An excess flow valve comprising a valve body defining a passage for a flow of fluid therethrough, the passage having an inlet and an outlet for fluid, a magnetically attractable  closure  member movably  located  within  the passage for movement toward and away from the outlet, a seat  located adjacent to the outlet for receiving the closure member.    A flow restriction means located in the passage for defining at least two  flow paths  for fluid along the passage, flow restriction means including a retaining means comprising a permanent magnet for retaining the closure member in one of said flow paths and away from said seat whilst there is a flow rate of fluid through the passage which is less than a predetermined rate,  the retaining means releasing the closure member when the flow rate of fluid  through  the  passage  equals  or  exceeds  said predetermined rate so that the closure member moves toward the outlet to engage said seat and shut off flow of fluid through the outlet.
Patent CA-2075497-A1 (CA)
Title: Charge/purge control system for air dryer having limited charge time
Inventor: CRAMER KENNETH LON
IPC: B60T17/00
Filed: 1990-06-26
Abstract: A compressed air system (10) includes an electronic control (38) which controls enabling an disabling of the compressor (12) in response to pressure level variations in the system storage reservoir (24). The control unit responds to compressor disabling by causing the system air dryer (26) to regenerate or purge for a predetermined time period. The timing period of a charge timer (80) is initiated when the compressor is enabled. When the charge timer has timed out; the compressor is disabled and the air dryer purged for the predetermined time period.
Patent CA-2075890-A1 (CA)
Title: Amplifier system having improved distortion reduction
Inventor: MALEC JEFFREY M
IPC: H03F3/217
Filed: 1992-08-12
Abstract: An amplifier system is disclosed having improved distortion reduction.  This system includes a DC voltage source having AC and DC components.  An input signal to be amplified is supplied to an amplifier coupled to a DC voltage source for amplifying the input signal to provide an output signal in accordance therewith.  Correction signal circuitry is provided including circuitry for separating the AC and DC components and varying the magnitude and phase of the AC component independently of the DC component to provide an adjusted AC component.  The DC component and the adjusted AC component are summed together to provide an adjusted correction signal which is then combined with the input signal prior to application of the input signal to the amplifier.
Patent CA-2077137-A1 (CA)
Title: Walking-beam furnace
Inventor: BALLABENE CORRADO
IPC: F27D3/02
Filed: 1992-08-28
Abstract: ABSTRACT            "Walking-beam furnace".      A walking-beam furnace comprising fixed beams arranged parallel to the feeding direction, walking beams arranged with  their  longitudinal  axes  parallel  to  the  feeding direction and to the fixed beams, and bearer ribs fixed to the walking beams and/or to the fixed beams and running at an angle to the longitudinal axis.
Patent CA-2078673-A1 (CA)
Title: Installation for continuously drying, dehydrating or microwave baking of granular or powdered products
Inventor: LECONTE DOMINIQUE C
IPC: H05B6/80
Filed: 1991-03-18
Abstract: ABSTRACT OF THE INVENTION         Installation for continuously drying, dehydrating or microwave baking of granular or powdered products.      The installation comprises in particular an applicator (4) connected to a generator (1) by means of a coupling device (3).       According to the invention, a dielectric tube (5) passes through at least one such applicator (4) and contains a rotating metal screw (8) for conveying the product to be treated, said metal screw being comprised of  at  least one  helically  wound  wire extending at a distance from the tube and close to the internal surface thereof.      Figure 1
Patent CA-2078776-A1 (CA)
Inventor: FISCHER DAN E
IPC: A61K6/90
Filed: 1991-03-18
Abstract: The present invention discloses high viscosity sustained release dental compositions, such as tooth bleaching or fluoride compositions, for treating tooth surfaces. For maximum results, an improved dental tray having reservoirs for holding the dental composition adjacent the desired tooth surfaces is preferably used in combination with the sustained release dental composition. The sustained release dental compositions include a high carboxypolymethylene concentration which results in very high viscosity. The high level of carboxypolymethylene makes dilution of the dental compositions from saliva difficult and time consuming so that the compositions stay within the tray reservoirs, thereby providing sustained release. The concentrated carboxypolymethylene adds a unique tackiness to the dental composition which helps retain and seal the soft tray material against the patient's teeth.
Patent CA-2078815-A1 (CA)
Title: A method for the preparation of n-ethyl-hydroxylamine hydrochloride
Inventor: LEE GEORGE EVERETT
IPC: C07C271/08
Filed: 1992-09-22
Abstract: Abstract The present invention relates to a novel, safe process for the preparation of N-ethylhydroxylamine hydrochloride from di-t-butyl dicarbonate and hydroxylaminehydrochloride.
Patent CA-2083233-A1 (CA)
Inventor: MYATT PATRICIA A
IPC: A47K10/38
Filed: 1992-11-18
Abstract: A portable dispenser  for paper towel  or toilet paper comprises a housing having a cylindrical body, a pair of end walls and a longitudinal flap between the end walls to provide an opening in the housing.  A mechanism is provided for rotatably retaining a roll of paper towelling/toilet tissues within the housing, between the pair of end walls, so that a free portion of the roll can extend through the opening in the housing and be torn off by a person and utilized.  A strap is affixed to the retaining mechanism for carrying the dispenser.
Patent CA-2086132-A1 (CA)
Title: Central locking device with improved hardware
Inventor: GOLDENBERG SHAUL
IPC: E05D15/22
Filed: 1992-12-23
Abstract: ABSTRACT             A pivot assembly for use with a pivoting and sliding closure assembly disposed in an opening, the closure assembly having track portions, theclosure assembly having at least one closure member slidable within said track portions and pivotable at one end of the closure member and latchable proximate the other end of the closure member, the pivot assembly comprising a carrier portion having two ends and being a continuous three dimensional supporting member extending substantially along the length of the closure member and slideable within said track portions, and having means for mounting hardware means disposed proximate each end of the carrier portion, (preferably said carrier portion being of substantially uniform cross section extending between said means for mounting hardware means disposed proximate each end of said carrier portion), the means for mounting hardware means of said carrier portion adjacent the pivotable end of the at least one closure member having means to lock the carrier portion from sliding movement within the track portions, wherein when the at least one closure member pivots, the means to lock the carrier portion from sliding movement in the track portions is activated, the means for mounting hardware means of said carrier portion adjacent the latchable end of the at least one closure member having latching means for latching the at least one closure member to prevent the closure member from pivoting at the pivotable end of the closure member when the closure member remains slideable within said track, the at least one closure member being braced from sagging by the the carrier portion disposed in each track, the carrier portion further preventing the closure member from disengaging from the carrier portion adjacent the pivotable end of the at least one closure member when the at least one closure member is rotated to an open position.
Patent CA-2086240-A1 (CA)
Title: Apparatus for reducing intraocular pressure
Inventor: UNGERLEIDER BRUCE A
IPC: A61F9/007
Filed: 1990-06-25
Abstract: An apparatus is described herein for implanting in the cornea (2) and limbal area (5) to be partially embedded and partially extending anteriorly, a preferred embodiment comprising one or more loops (1) of small sized porous ropes, cords, bands or hollow tubes, which device has one end or section thereof extending beyond the exterior surface of the cornea (2) and limbal area (5) so that aqueous humor may be exited from the anterior chamber (3) in the eye (9) to relieve intraocular pressure and thereby avoid or reduce the effects of glaucoma or for introducing a drug on exterior surface of the cornea (2) into the anterior chamber (3) in the eye (9).
Patent CA-2086892-A1 (CA)
Inventor: DAVIDSON CHRISTOPHER D
IPC: H02M3/335
Filed: 1993-01-07
Abstract: A switch mode power converter includes a snubber diode and a snubber capacitor arranged in series with one another across the switching element of the converter.  A discharge path is provided for discharging the capacitor by including a second diode, a switch and an inductor extending in series from the node between the snubber diode and the snubber capacitor to the line side of the transformer.  The inductor may be coupled to a winding in series with a diode to allow clamping of the voltage across the inductor.
Patent CA-2087346-A1 (CA)
Inventor: WARD IRVING
IPC: B05B1/16
Filed: 1991-08-08
Abstract: The instant invention is, in broad aspect, a shower head that provides a series of spray effects. The object of the instant inven-tion includes to efficiently provide a shower head user with a varie-ty of spray effects and to reduce the complexity of the multifunc-tion shower head. The shower head (10) includes an inlet port to establish fluid communication with a source of water and at least two outlet ports (58 and 60) to direct a spray with various effects to the user. A pushrod (36) disposed in fluid communication between the inlet port (56j and the outlet ports (58 and 60) selectively opens the outlet ports (58 and 60) to allow the user to continuously select any combination of spray effects, which may include a continuous stream or a pulsating jet. The pushrod (36) is actuated by a rotat-ing cam ring (16) operated by the user. The cam (16) moves the pushrod (36) transversely across the inlet port (56) and, under con-trol of the user, directs water from the inlet port (56) to the outlet ports (58 and 60). The cam ring (16) maintains the pushrod (36) in the selected orientation.
Patent CA-2087812-A1 (CA)
Inventor: AKINS EDWARD A
IPC: A01K3/00
Filed: 1993-01-21
Abstract: In a fencing system for animals the conventional rigid fence panels are interconnected by flexible members which allow the fence panel to move each relative to the next to accommodate impacts by a fractured animal. Different embodiments are shown including an elastic block between the posts, a flexible metal spring between the posts, a simple strap wrapped around the posts in a Figure 8 arrangement and a modified elastic strap arrangement which includes two free ends engaged over a pin passing through an end post of the panel and an intermediate leg portion for engaging between the end post and the end post of a next adjacent panel.
Patent CA-2088051-A1 (CA)
Title: Acid treatment for decaffeination of coffee
Inventor: KAZLAS PETER T
IPC: A23F5/20
Filed: 1991-08-20
Abstract: A method for producing decaffeinated green coffee beans includes a step of contacting the beans with an acidic fluid and step of decaffeinating the acidified beans by supercritical extraction.  The acidic fluid is desirably an aqueous solution of an acid normally present in green coffee beans or roast coffee beans, preferably citric acid.  The acidifying treatment compensates for loss of acidity which occurs during supercritical decaffeination which adversely affects the flavor and aroma of coffee beverage.
Patent CA-2090045-A1 (CA)
Title: Lawn mower height-adjust systems
Inventor: HESS KRISTOFFER A
IPC: A01D34/74
Filed: 1991-04-24
Abstract: ABSTRACT OF THE DISCLOSURE     Lawn mower height-adjust systems include three embodiments   Two permit the user to adjust the position of the deck relative to each wheel individually   The third permits the user to adjust the positions of all four wheels simultaneously, aided by a counterbalance system   A modification of the third embodiment is available to automatically bypass the height-adjust mechanism in the event an abnormally high load is placed on the deck   One of the two individual systems permits an operator to adjust the position of a respective wheel simply by removing a single nut and washer from an axle bolt   The second individual height-adjust system permits the operator to adjust the height of an individual wheel by using one hand, and without having to disassemble the mechanism   The system which adjusts all four wheels simultaneously links front and rear axle subassemblies with a connecting rod, and indexes all four wheels simultaneously through a release handle which is recessed in a cavity formed in the lawn mower deck   When the operator lift the release handle, he or she may simultaneously grasp a portion Or the deck with the same hand and easily raise or lower it to a desired position A single unitary plastic deck is the foundation for each Or the three height-adjust systems, thereby singificantly reducing the cost otherwise incurred by manufacturing three separate types Or lawn mowers
Patent CA-2091245-A1 (CA)
Title: Crystallization of optical isomers of leukotriene antagonists
Inventor: LAIRD TREVOR
IPC: A61K31/135
Filed: 1991-09-20
Abstract: This invention relates to salts of formula (I) where, A is 1 and X is 1 or 2; R1 is C8 to C13 alkyl, C7 to C12 alkoxy, C7 to C12 alkylthio, C10 to C12 1-alkynyl, 10-undecynyloxy, 11-dodecynyl, phenyl-C4 to C10 alkyl, phenyl-C3 to C9 alkoxy, phenylthio-C3 to C9 alkyl with the phenyl unsubstituted or monosubstituted with bromo, chloro, trifluoromethyl, C1 to C4 alkoxy, methylthio or trifluoromethylthio, furyl-C4 to C10 alkyl, trifluoromethyl-C7 to C12 alkyl or cyclohexyl-C4 to C10 alkyl; q is 0, 1 or 2, with the proviso that R1 is not alkylthio or phenylthioalkyl when q is 1 or 2; Y is COR3, C(R4)H(CH2)mCOR3, or (CH2)0-1-C-tetrazolyl; R3 is 0-, amino, or C1 to C6 alkoxy, R4 is hydrogen, methyl, C1 to C4-alkoxy, fluoro or hydroxy; m is 0, 1, or 2; R is (CH2)nCOR6; n is 0 to 6; R6 is 0-, amino, or C1 to C6-alkoxy; with the proviso that at least one of Y or R must have an R3 or R6 group respectively which is 0- and the use of certain amines to form these salts as a means for selectively crystallizing optical isomers of the leukotriene antagonists recited herein.
Patent CA-2091453-A1 (CA)
Inventor: ENGLE THOMAS
IPC: B61D45/00
Filed: 1991-09-12
Abstract: A stanchion (18) is provided with a latch system which is operable from the tractor (10) which positions the trailers (12) such that a gate (34) on the tractor (10) locks and unlocks the latch to appropriately reposition the stanchion (18) during the positioning of the trailer (12). The tractor (10) also includes a hook (38) which engages the stand (26) to raise the stand (26) during loading of the trailer (12) from its lowered to its raised position to engage and secure the tractor and also to reposition the unlocked stand (26) during unloading of the trailer (12).