baber/WOPTO huggingface dataset:
Patent CA-2038520-A1 (CA)
Title: Heat exchanger with fluid injectors
Inventor: CLOUTIER LOUIS
IPC: F28F13/12
Filed: 1991-03-18
Abstract: Disclosed is an improved heat exchanger whose flow rate and heat exchange rate are so improved that it may quickly respond to any demand in a very efficient way. This heat exchanger comprises a tank in which a first fluid may be circulated, this tank having an inlet port and an outlet port for the first fluid, and at least one heat conductive tubular element located within the tank, and in which a second fluid may be circulated in order to exchange heat with the first fluid within the tank, this at least one heat conductive element having ends leading outside the tank. A fluid injector is operatively connected to at least on one of the ports of the tank to generate turbulences and prevent the formation of dead spots within the tank. This injector is preferably in the shape of a loop and provided with a plurality of perforations, the loop extending in a plane parallel to and near one end of the tank. Some of the perforations are oriented to generate a circulation of the first fluid in directions that are substantially perpendicular to the plane of the loop all along the length of the same. Some other perforations are oriented at angles to generate another circulation of the first fluid toward the center of the tank. The heat conductive tubular element preferably comprises a plurality of loops-defining coils mounted within the tank of the heat exchanger in such a manner that the loops of each coil fit between the loops of at least one other adjacent coil, all of the coils having ends joined together to form common ports. Such a coil arrangement makes the heat exchanger very compact yet efficient.
Patent CA-2041015-A1 (CA)
Title: Device for the calibration of sheets picked up successively from underneath a pile in a package producing machine
Inventor: BALLY CHRISTOPHE
IPC: B31B50/06
Filed: 1991-04-23
Abstract: ABSTRACT          The invention concerns a feeder for board sheets or blanks (F) picked up  successively from underneath a pile (1) in a package producing machine. The feeder includes two crosswise guides  (16a,  16b)  carrying  a  shiftable  support  (9).  This support  (9)  consists  of  a  first  part  (9a)  engaged in  the guides  (16a,  16b)  and  of  the  second  part  (9b)  vertically shiftable with regard to the first part (9a). A calibrating arresting piece (7) is fitted on the second part (9b). A jack (V2)  is moved in between the two parts  (9a,  9b)  in  order to counter-balance the weight of the second part (9b) when the two  guides  (16a,  16b)  are lowered for calibrating the sheets (F) travelling through between the lower end (18) of the arresting piece (7) and a conveyor belt (2).          (FIG. 3)
Patent CA-2046982-A1 (CA)
Title: Electrical-optical hybrid connector
Inventor: SELVIN GERALD J
IPC: H01R13/64
Filed: 1991-07-12
Abstract: ABSTRACT OF THE INVENTION     A hybrid electrical optical connector employing a  push-pull  plug  receptacle  combination.    A  hood structure protruding  from the plug component  of the connector simultaneously serves to ensure that the plug is properly rotationally oriented with respect to the receptacle  prior  to  insertion,  that  the  individual terminals  are  guided  toward  the  respective  terminal receiving channels,   and that the plug is latched in place once fully engaged.  A rigid armature allows the plug to be partially assembled and tested prior to final overmolding.   In its final overmolded form the plug is impervious  to  the  influx  of  contamination  and  can withstand a substantial amount of physical abuse.  The inexpensive materials used in the construction of the plug and the ease of assembly yield a low cost plug well suited  for  use  in  conjunction  with  a  disposable peripheral device.
Patent CA-2048255-A1 (CA)
Inventor: THWAITES DAVID J
IPC: G05D11/13
Filed: 1991-07-31
Abstract: An anaesthetic vaporiser is disclosed which comprises an inlet for carrier gas; an outlet for the carrier gas and an anaesthetic agent, for delivery to a patient; a passage which extends between the inlet and the outlet; a vaporising chamber for an anaesthetic agent; a passageway which extends form the vaporising chamber to the outlet; means for monitoring differences in pressure between the carrier gas in the passage and the agent in the passageway; means for generating a signal corresponding to the pressure difference measured by the pressure difference monitoring means; and a flow control valve located in the passageway for controlling the rate of flow of the agent through the passageway,  the valve being controlled by the signal from the pressure monitoring means.
Patent CA-2050729-A1 (CA)
Title: Clamp for bandless refactory and method
Inventor: KING PATRICK D
IPC: B22D41/40
Filed: 1991-09-05
Abstract: A sliding gate valve assembly which has a stationary refractory plate mounted to a mounting plate and secured there by the force pressed against it exerted by another refractory is disclosed. A clamp ring is provided which has extending ears, each of which is bored to ride on a clamp spring assembly. Yieldable means, preferably a coil spring, surrounds the shank of the clamp spring assembly guide shank and engages the underside of the ear and rides in the main frame. When the main frame is closed, pressure is urged on the spring which, in turn, transmits the force to the clamp, the tapered inner edge of which engages the tapered outer edge of the stationary plate. The method of the present invention depends upon utilizing the clamping force of a valve assembly having a main frame and in which yieldable means are provided between the main frame and the mounting plate to urge a continuous clamp ring into engagement with the handless stationary plate having tapered sidewalls.
Patent CA-2050771-A1 (CA)
Inventor: SHAHRIARY IRADJ
IPC: H03L7/10
Filed: 1991-09-06
Abstract: Disclosed is a single phase-locked loop (50, 350) providing tuning over a very large bandwidth for use in wide band carrier tracking and clock recovery systems. In  a  first  embodiment,   a  DC  signal  is  formed representative of a phase difference between an input signal changing with time and a return signal.  The DC signal is applied to a narrow band voltage controlled oscillator (68) which converts the DC signal back to an AC signal.  The AC signal is level shifted to form a clocking pulse  for an accumulator  (80)  of a direct digital synthesizer (72).  A digital command word is also applied to the accumulator  (80),  such that the digital command word represents a coarse tuning of the input frequency.  The clocking pulse from the narrow band VCO  (68)  supplies a  fine tuning of the  input frequency.    In   a   second   embodiment,   the   DC representative   phase   signal   is   applied   to   an analog-to-digital  converter  (364)  which  produces  an N-bit word representative of the phase difference.  The change  in  phase  alters  the  digital  output  of  the analog-to-digital  converter  (364)  which  in  turn  is applied to the accumulator  (376)  of a direct digital synthesizer (370).  By this invention, very wide band tracking is capable with a single phase-locked loop, thus limiting the hardware and cost.
Patent CA-2050837-A1 (CA)
Title: Polymer mixture
Inventor: GILLIO-TOS MARIO
IPC: C08L79/00
Filed: 1991-09-06
Abstract: The invention provides a polymer composition comprising polyvinylidene chloride and polyethyloxazoline.      The composition possesses an unusual combination of characteristics; the inclusion of polyethyloxazoline in the polyvinylidene chloride causes a substantial increase in moisture permeability with no substantial change in permeability to oxygen or carbon dioxide. The polyethyloxazoline is highly miscible with the polyvinylidene chloride and reduces melt viscosity. The combination of properties is indicative of utility as a packaging film.
Patent CA-2051246-A1 (CA)
Title: Apparatus for mounting and moving coating dispensers
Inventor: SHUTIC JEFFREY R
IPC: B05B13/04
Filed: 1991-09-12
Abstract: An apparatus for mounting and moving coating dispensers within the interior of a spray booth, and particularly the coating dispensers located above an object moving through the booth, comprises a dispenser housing having an aerodynamically shaped outer surface formed with a leading edge, a trailing edge and opposed generally curved sides. A pair of support assemblies isolated from the booth interior mount the dispenser housing in the path of a downward flow of air within the booth interior within which oversprayed coating material is entrained for collection such that the leading edge of the dispenser housing faces the top or ceiling of the spray booth and its trailing edge faces the objects moving through the booth. One or more coating dispensers are mounted at the trailing edge of the dispenser housing in a position to discharge powder coating material downwardly onto the object, such as the hood, roof and trunk of a vehicle body. Each support assembly carries one side of the dispenser housing and structure is provided on at least one of the support assemblies for moving the dispenser housing vertically, side-to-side and pivotally with respect to objects moving through the booth.
Patent CA-2052756-A1 (CA)
Title: Painting line for metal objects
Inventor: KOPONEN RAIMO V
IPC: B05B13/02
Filed: 1991-10-03
Abstract: The present invention relates to a painting line for metal objects, such as coating screws and nails, comprising a base for affixing said objects (2) at a space from one another on said base, members (5) for spreading paint on the objects (2) affixed to the base and, if needed, heating elements (6) for fixing the paint on the objects prior to freeing of the base. The base is a magnetic conveyor (1), provided thereunder a feeder (7) known in itself in the art for arranging objects to form at least one individual row to be in contact with the undersurface of the magnetic conveyor (1) so that said conveyor picks one object (2) at a time from each row. The paint spreading members 5 are like-wise positioned under the magnetic conveyor (1) after the feeder (7) and separated from the magnetic conveyor by means of a thin sheet (8) disposed thereagainst, against the undersurface of which the objects (2) glide due to the action of the magnet conveyor (1) gliding against the opposite side of said sheet. Finally, a block (9) is disposed on the travel path of the painted objects (2) transported by the magnetic conveyor, in order to drop said objects off from the magnetic conveyor (1).
Patent CA-2053116-A1 (CA)
Title: Internal rotary valve actuator system
Inventor: ZINK DONALD L
IPC: F16K31/44
Filed: 1991-10-09
Abstract: An actuator system for controllably rotating a rotary (valve) element positioned in a pressurized fluid vessel. A double-acting piston-cylinder intermittently rotates a ratchet wheel operatively connected to the rotary element. The cylinder is sealed within a bel-lows chamber assembly in the vessel and is controllable by a pressure source positioned outside of the vessel. The wheel is rotated by a ratchet member biased against the ratchet wheel and attached to the cylinder and reciprocable therewith. A ratchet pawl biased against the ratchet wheel prevents the reverse rotation of the wheel, and thereby of the rotary element.
Patent CA-2054935-A1 (CA)
Title: Method of manufacturing flat panel backplanes including redundant gate lines and displays made thereby
Inventor: HOLMBERG SCOTT H
IPC: G02F1/1343
Filed: 1991-11-05
Abstract: Flat panel displays are provided with overlying interconnected and hence redundant bus lines to reduce fatal defects. The redundant, generally row lines are interconnected at least at two locations on a line and can be connected at each pixel to further reduce defects. The redundant row or gate line is formed by an overlying light shield line which preferably is of low resistivity and enhances the operation of the displays. The display can include subdivided subpixels and one defective subpixel is generally an acceptable non-fatal display defeat, since the rest of the subpixels are still operative. The subpixels can be formed with common or redundant column bus lines.
Patent CA-2055146-A1 (CA)
Title: Method for blocking platelet adhesion to collagen
Inventor: CONNOLLY THOMAS M
IPC: C07K14/78
Filed: 1991-11-07
Abstract: TITLE OF THE INVENTION A MFTHOD FOR BLOCKING PLATELET ADHESION TO COLLAGEN     ABSTRACT OF THE DISCLOSURE         A method for blocking platelet adhesion to collagen by contacting platelets with a polypeptide having one of the following sequences:      NH2 (Ch) Ala Arg Gly Asp (Cx) COOH   (i) NH2 (Ch) Ala Ala Gly Asp (Cx) COOH   (ii) NH2 (Ch) Ala Arg Tyr Asp (Cx) COOH   (iii) NH2 (Ch) Ala Arg Gly Asp (Cy) Z      (iv) wherein Ch, Cx, Cy are defined amino acid sequences or conservatively substituted amino acid sequences, and Z is NH2 or COOH.
Patent CA-2055269-A1 (CA)
Title: Sealed power clamp
Inventor: SAWDON EDWIN G
IPC: B25B5/06
Filed: 1991-11-12
Abstract: ABSTRACT OF THE DISCLOSURE An offset powered toggle clamp which is very compact and in which the entirety of the actuating mechanism is fully enclosed so that it is sealed from  contaminants  and  can  be  permanently  lubricated.   The  clamp  also accommodates various clamping arm locations and orientations for different applications.
Patent CA-2056363-A1 (CA)
Title: Polymere d'oxypropylene renfermant un groupe silicie reactif; methode de preparation
Inventor: FUJITA MASAYUKI
IPC: C08G65/336
Filed: 1991-04-08
Abstract: L'invention se rapporte à un nouveau polymère d'oxypropylène contenant un groupe de silicium réactif, dans lequel la chaîne polymère principale contient essentiellement les unités répétitives de la formule (alpha), dans lequel au moins un groupe de silicium réactif et au moins une liaison d'uréthane sont présents aux terminaisons de la chaîne polymère et dans lequel le rapport M(Boolean not)w/M(Boolean not)n est égal à 1,5 ou moins, et le poids moléculaire moyen en nombre est égal à 3 000 ou plus. Le procédé de production de ce polymère consiste à faire réagir un polymère d'oxypropylène, ayant un rapport M(Boolean not)w/M(Boolean not)n égal à 1,5 ou moins et un poids moléculaire moyen en nombre par unité de fonction terminale égal à 1 500 ou plus avec un composé contenant à la fois un groupe de silicium réactif et un groupe d'isocyanate.
Patent CA-2057353-A1 (CA)
Inventor: COHEN BERNARD
IPC: D04H1/54
Filed: 1991-12-10
Abstract: ABSTRACT OF THE DISCLOSURE     A method  for forming thinned areas  in a thin sheet material. The method includes the steps of (1) placing the thin sheet material on a pattern anvil having a pattern of raised areas wherein the height of the raised areas  is generally less than the thickness of the sheet material; (2) conveying the sheet material, while placed on the pattern anvil, through an area where a fluid is applied to the sheet material;  and  (3) subjecting  the  sheet  material  to  a sufficient amount of ultrasonic vibrations in the area where the fluid is applied to the sheet material to area thin the sheet material in a pattern generally the same as the pattern of raised areas on the pattern anvil. In some embodiments, the thinned areas may be micro areas.
Patent CA-2057390-A1 (CA)
Title: Tree protector
Inventor: ANGUS JERRY-FRANTZ
IPC: A01G13/02
Filed: 1991-12-11
Abstract: The tree protector is made of a plurality of adjacently positioned  trapezoidal panels having one lateral  side  provided with  tabs and another lateral side with corresponding slots  for hooking  the  tabls  of an adjacent  panel.   Each  panel  has  a plurality  of  narrow elongated openings  disposed  substantially parallel  to  the  slots having a maximum  width  of  about  0.25 inches  for allowing air circulation and preventing  accumulation of snow inside the protector.
Patent CA-2059424-A1 (CA)
Inventor: OKAMURA HISASHI
IPC: G03C1/06
Filed: 1992-01-15
Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains at least one compound represented by formula (I):    ED~Time~Ind~~(I) wherein ED represents a group capable of releasing (Time)t-Ind upon a reaction with an oxidation product of a developing agent; Time represents a divalent linking group; t represents 0 or 1; and Ind represents a group represented by formula (II): (see formula I) wherein X represents a monovalent group; and s represents an integer of from 0 to 4.        The compound represented by formula (I) is excellent in preservability and rapidly releases a development inhibitor.        The silver halide photographic material provides an ultrahigh contrast image using a highly stable developing solution and is particularly suitable for use in photomechanical processes.
Patent CA-2059754-A1 (CA)
Title: Method for heat-sealing cable insulations
Inventor: BABIEL GERHARD
IPC: B29C53/08
Filed: 1992-01-22
Abstract: ABSTRACT         In a process for welding cable insulation by heating the insulation, which has been pressed together under pressure so that the cable insulation melts together, provision is made that the cable ends are connected electrically and in that a current is conducted through the cable so that the cable insulation is melted by Joule heat.
Patent CA-2061369-A1 (CA)
Title: Recyclable plastic cash register receipts
Inventor: DOBRESKI DAVID V
IPC: G07G5/00
Filed: 1992-02-17
Abstract: RECYCLABLE PLASTIC CASH REGISTER RECEIPTS                        ABSTRACT       A cash register receipt which is recyclable in a manner compatible with plastic sacks used for carrying retail articles such as groceries.  The cash register receipts of the present invention are capable of receiving and displaying indicia of the transaction, such as the store name, the date of a transaction, the name of the item purchased, the purchased price, etc. and is formed of one or more materials which may be readily recycled simultaneously with a plastic grocery bag. Methods of utilizing recyclable cash register receipts in association with plastic grocery bags are also disclosed.
Patent CA-2062007-A1 (CA)
Title: Multilayered mold structure for hot surface molding in a short cycle time
Inventor: KIM BANG M
IPC: B29C35/08
Filed: 1992-02-27
Abstract: RD-19,297 MULTILAYERED MOLD STRUCTURE FOR HOT        SURFACE MOLDING IN A SHORT CYCLE                     TIME     Abstract of the Disclosure A multilayered insulated mold structure is provided.  An insulation layer provided on each of the mold core retains heat at the molding surface, thereby increasing surface quality of the finished part.  The insulating layer has a varying density across its thickness so as to have a low density center region and high  density surface regions.           By having a relatively low density, the center region of the insulating layer has a low thermal conductivety.  Thus, the insulating layer may be made from the same material as the core and still have an acceptable insulating value.  The use of the same material for adjacent layers reduces the potential of delamination of the layers.  The multilayered mold is compatible with passage or active heating of the molding surface.
Patent CA-2066211-A1 (CA)
Title: Process for the production of esters exhibiting nonlinear optical response
Inventor: LESLIE THOMAS M
IPC: C07C229/04
Filed: 1990-09-04
Abstract: This invention provides multistep process embodiments for the production of novel esters which exhibit nonlinear optical response.  A process embodiment is illustrated by the reaction of a Schiff base with a substituted acetic acid to form a stilbene alcohol intermediate (I). The stilbene alcohol intermediate is decarboxylated, and then is esterified in the presence of a pyridine type catalyst to provide an ester with a conjugated structure.
Patent CA-2066450-A1 (CA)
Inventor: WEIS MANFRED
IPC: B65H23/025
Filed: 1991-05-22
Abstract: RM.0097.WO (21712-237) Abstract Apparatuses for broad-drawing running webs of material, in particular webs of paper, are known; in the wrap-around area, these are in the form of rollers and incorporate curved broad-drawing elements that are supported, spaced apart, in a frame, and are coupled so as to be pivotable.            In order to permit replicable setting as a function of the parameters of the web of material with only one setting parameter, according to the present invention the broad-drawing elements (4, 5) are each secured to the coupling element (10, 16) of a four-bar linkage, the two driving levers (9, 15) of the two four-bar linkages being coupled to each other through a gear system (20, 21, 22) so as to be pivotable in the same direction of rotation.
Patent CA-2066476-A1 (CA)
Title: Hockey stick formed of composite materials
Inventor: BAUM CHARLES S
IPC: A63B59/70
Filed: 1992-04-21
Abstract: Abstract of the Disclosure A hockey stick having the appearance of a solid wood stick and superior handling properties is formed with an outer layer of resin-impregnated wood veneer formed integrally with an inner sheath of fiber-reinforced fabric and resin.  In one embodiment of the hockey stick, the two outer layers are formed over a core which may be formed of foamed plastic core.   In an alternative embodiment, the foam core extends through the handle area and the blade is formed of synthetic fibers overlaid and bonded to an outer wood veneer sheath by resin which impregnates both layers.
Patent CA-2067268-A1 (CA)
Title: Systeme catalytique, notamment pour la postcombustion de gaz d'echappement et procede pour les fabriquer
Inventor: DUBOST DOMINIQUE
IPC: B01J27/24
Filed: 1992-04-27
Abstract: L'invention concerne un système catalytique et son procédé de fabrication. Le système catalytique est constitué d'un support sur lequel le produit catalytiquement actif est déposé. Le support présente des propriétés mécaniques ou physiques intéressantes pour les conditions de fonctionnement requises; mais une surface spécifique médiocre. Le produit catalytiquement actif, un carbure métallique, est obtenu par engobage du support dans une suspension d'un composé réductible du métal dans une solution d'un composé organique, carbonisation de ce composé, réduction du composé métallique et carburation du métal. Le carbure ainsi obtenu présente une surface spécifique élevée. De préférence, le support est constitué de carbure de silicium préparé par carbonisation d'une pâte contenant du silicium, du carbone et une résine organique. L'invention s'applique à toute forme de catalyseur, mais en particulier aux catalyseurs monolithiques destinés au traitement des gaz d'échappement.
Patent CA-2068592-A1 (CA)
Title: Method of producing grain-oriented electrical steel sheets or strips
Inventor: BOLLING FRITZ
IPC: C21D8/12
Filed: 1992-05-13
Abstract: METHOD OF PRODUCING GRAIN-ORIENTED ELECTRICAL STEEL SHEETS OR STRIPS            ABSTRACT OF THE DISCLOSURE            The invention relates to a method of producing grain-oriented electrical steel sheets or strips having a final thickness in the range of 0.1 to 0.5 mm. A slab of a steel having the composition set forth in Claim 1 is hot rolled, then possibly annealed and then cold rolled In at least two stages with an intermediate annealing of the strip prior to the final cold rolling stage at a temperature in the range of 800 to 1100°C for 30 to 600 seconds and with an accelerated cooling from the intermediate annealing temperature at a speed higher than 50 K/sec. After a tempering annealing treatment prior to the final cold rolling stage, in which a thickness reduction of 40 to 80% is performed, a recrystallization annealing is carried out in a moist atmosphere, accompanied by the decarbonization of the strip cold rolled to the final thickness. After a separating agent has been applied to the strip surfaces, high temperature annealing is performed.