baber/WOPTO huggingface dataset:
Patent CA-2038390-C (CA)
Inventor: KLEIN KEVIN J
IPC: B29C65/08
Filed: 1991-03-18
Granted: 1999-09-14
Abstract: A horn for coupling high frequency vibrations from an electroacoustic converter unit to a workpiece, such as is used for welding thermoplastic workpieces by ultrasonic vibrations, is constructed by machining sections of the horn and welding the sections together using electron beam welding or laser beam welding. The respective sections can be made from bar or plate stock. This construction eliminates the machining of deep, inaccessible slots, and as most of the surfaces to be machined are accessible, a fine surface finish can be provided, thus eliminating tool marks which cause the existence of areas of high mechanical stress concentrations when the horn is rendered resonant. Also significant economic advantages are achieved when manufacturing large, massive slotted hums in this manner.
Patent CA-2038785-C (CA)
Inventor: OYAMATSU ATSUSHI
IPC: G11B11/105
Filed: 1991-03-21
Granted: 1998-09-29
Abstract: A magneto-optical recording medium, comprising a substrate, a magneto-optical recording layer on the substrate, a transparent thermally-insulating layer of one selected from the group consisting of tantalum oxynitride and tantalum oxide on the magneto-optical recording layer, and a metal reflecting layer on the transparent thermally-insulating layer, the metal reflecting layer having a thermal conduction represented by a product of a thermal conductivity multiplied by a layer thickness of not less than 1.3 x 10-6WK-1. Heat dispersion is improved while maintaining a high recording sensitivity
Patent CA-2045634-C (CA)
Inventor: DUERSCHINGER HANS
IPC: B23B27/04
Filed: 1990-11-17
Granted: 1997-02-04
Abstract: A groove cutter has a groove cutting edge that is inclined at a lead angle (K).  The groove cutting edge has a hollowed-out center region between end regions on both sides, and connection cutting edges provide transitions between the center region and the end regions.  The connection cutting edges have different lengths and are disposed with respect to one another at a flank angle (.delta.).          The groove cutter also has a cutting edge corner that leads in a groove cutting direction, along with a cutting edge corner that trails in the groove cutting direction.  One of the connection cutting edges is disposed adjacent to the leading cutting edge corner and forms an inclination angle (.alpha.) with respect to an adjacent end region cutting edge.          This angle of inclination (.alpha.) is greater than an oppositely directed inclination angle (.beta.) between the other connection cutting edge and another end region cutting edge, which trails in the groove cutting direction.
Patent CA-2049075-C (CA)
Title: Remote control of fluorescent lamp ballast using power flow interruptioncoding with means to maintain filament voltage substantially constant as the lamp voltage decreases
Inventor: HU FENG-KANG
IPC: H05B41/36
Filed: 1991-08-13
Granted: 1998-08-04
Abstract: A dimming ballast system wherein the light output of the lamp is controlled by a remote source.  The ballast output voltage is regulated by a voltage control feedback loop, the dimming function being achieved by varying the set point of the control  loop.   The remote control  signal,  coded by interrupting the current flow to the ballast for a short period,  is processed digitally by a microcomputer which generates information to vary the control set point.  Circuit means are provided to control the filament voltage of the fluorescent lamps such that as the lamps are dimmed down, the filament voltage is maintained or slightly increased, thus prolonging lamp life and stabilizing the lamp light output.
Patent CA-2050587-C (CA)
Title: Bicyclolactam derivative
Inventor: KAWAGUCHI AKIHIRO
IPC: C07D215/227
Filed: 1991-01-30
Granted: 1997-11-25
Abstract: The present invention provides a bicyclolactam derivative which has the following formula and is useful as medicaments for treating senile dementia, i.e., as cerebral function improving agents and cerebral metabolism activators or anoxic brain damage protectives (see fig. 1) wherein R is benzoyl group which may be substituted with halogen atom, lower alkyl group, lower alkoxyl group, nitro group, cyano group or amino group; ~ is 1 or 2; m is 0 or 1; and n is 0, 1 or 2, provided that m and n are not 0 at the same time.
Patent CA-2059426-C (CA)
Title: Axial eject hypodermic syringe holder
Inventor: STIEHL MARK A
IPC: A61M5/24
Filed: 1992-01-15
Granted: 2002-10-01
Abstract: A hypodermic syringe holder adapted to receive a disposable carpule and eject it in an axial direction includes a pair of pivotable jaws disposed on pivots on opposite sides of the body of the holder and a sleeve element for opening and closing the jaws slidably disposed around the body of the holder. In the downward position, the sleeve element closes the jaws around the carpule and in the upward position, the sleeve opens the jaws, permitting the carpule to be safely and consistently ejected from the holder in an axial direction.
Patent CA-2061979-C (CA)
Inventor: FORTIN MICHEL E
IPC: E04B1/74
Filed: 1992-02-27
Granted: 1995-08-15
Abstract: An insulating pulp for  insulating buildings and other type structures and wherein the pulp is formed of organic fibers having a fiber length of from about 1.0 mm  to  3  mm.   Such  pulp  is  obtained  by  a  chemi-thermomechanical  pulping  process  and  the pulp may be supplied in fluff form or compressed sheet form which is later defibrillized.    A fire retardant additive and a corrosive buffing agent is added to the pulp.   A major characteristic of such insulating pulp is that it has a density in the range of from about 0.6 to 4.0 lbs/ft3 and has an excellent thermal insulation value of about R3 to R4 per inch.    The chemi-thermomechanical wood pulp is produced from debarked trees which are primarily black spruce which have these long and strong fibers.  The pulp is  applied  by  injecting  it  through  a compressed  air conduit and at the same time an adhesive is injected in the pulp  to  form  a binding  agent.    Because of  the property of the fibers and the fiber distribution in the fluff,   the  pulp  is  also  an  excellent  acoustical insulator.
Patent CA-2062728-C (CA)
Title: An enclosed extended nip press apparatus
Inventor: FILZEN SCOTT ERNEST
IPC: D21F/
Filed: 1990-04-09
Granted: 1996-10-22
Abstract: An enclosed extended nip press apparatus (10) is disclosed for pressing water from a formed web (W). The apparatus (10) in-cludes a frame (12) and a back-ing roll (14) rotatably secured to the frame (12). A press member (16) cooperates with a backing roll (14) for defining therebe-tween an extended nip (N) for the passage therethrough of the formed web (W). A press blanket (18) extends in a closed loop through the nip (N), the blanket (18) having a first and a second lateral edge (20 22) and an inner and an outer surface (24, 26). A first and a second head (28, 30) are rotatably secured to the press member (16) with the first and second heads (28, 30) being disposed adjacent to and cooperating with the first and the sec-ond edges (20, 22) respectively of the blanket (18). The first and the second heads (28, 30) define first and second annular chan-nels (32, 34) respectively for the reception therein of the first and the second lateral edges (20, 22) respectively of the blanket (18). A first and a second annular seal (36, 38) are disposed within respectively the first and the second channels (32, 34) with the seals (36, 38) contacting the respective edges of the blanket (18). A first and second plurality of barbs (40, 42) extend from the first and the second channels (32, 34) respectively such that the first plurality of barbs (40) extend towards and engage the first lateral edge (20) of the blanket (18) and are disposed on the opposite surface (26) of the blanket (18) relative to the first seal (36). The second plurality of barbs (42) extend towards and engage the second lateral edge (22) of the blanket (18). The second plurality of barbs (42) are disposed on the opposite surface (26) of the blanket (18) relative to the second seal (38) so that during use of the appara-tus (10), lateral movement of the edges (20, 22) of the blanket (18) relative to the heads (28, 30) is inhibited.
Patent CA-2064059-C (CA)
Title: Indication of snow packing for railway vehicles
Inventor: PERSSON RICKARD
IPC: B61F5/22
Filed: 1990-06-29
Granted: 1997-10-14
Abstract: An arrangement on a railbound vehicle with hydraulic cylinders for tilting of the car body in track curves, the tilting being adapted to be controlled by one or more servo functions. According to the invention, the car body tilt is adapted to be limited to a maximum value, and when snow occurs, which is packed between the different parts of the tilting system, the degree of snow packing is indicated, and when a certain degree of snow packing is exceeded, the desired value of the tilt angle is maximized to a suitable smaller value.
Patent CA-2066310-C (CA)
Title: Powder mixture for powder metallurgy and binder therefor
Inventor: MURAKAMI MASAHIRO
IPC: B22F1/10
Filed: 1992-04-16
Granted: 1996-11-12
Abstract: A powder mixture for powder metallurgy comprising a starting powder for powder metallurgy containing a metal powder, a powder of physical property improving ingredients and a lubricant and, blended therewith as a binder, a synthetic styrenic rubber copolymer comprising: 5 to 75 parts by weight of styrene and 95 to 25 parts by weight of butadiene and/or isoprene, as the monomer ingredient or a hydrogenation product thereof.  The binder can suppress the segregation of the physical property improver and the lubricant, as well as dusting upon handling the powder.
Patent CA-2070107-C (CA)
Title: Capillary tube assembly including a vented cap
Inventor: HAYNES JOHN L
IPC: B65D39/00
Filed: 1992-06-01
Granted: 1996-03-05
Abstract: A vented cap and capillary tube assembly is disclosed together with a method of use of such assembly. The assembly includes a capillary tube having a bore extending therethrough and a cap slidably mounted to one end of the tube.  The cap includes one or more vent grooves therein which allow air to escape therethrough when the cap is in a first slidable position.  The walls of the capillary tube prevent air from escaping through the vent when the cap is more fully inserted within the tube.  The method provided herein includes the steps of providing such a pre-assembled capillary tube and vented cap assembly, maintaining the cap in the first position while the opposite end of the capillary tube is inserted within a liquid sample, allowing the liquid to enter the tube through capillary action, thereby displacing air within the tube through the vent, and sliding the cap to the fully inserted position, thereby sealing the vent. The cap used in conjunction with the capillary tube is made of an elastomeric material, and has a slippery surface.  It includes an enlarged head having a cylindrical plug extending therefrom.  The plug includes a sealing ring for engaging the inner wall of the capillary tube.  It also includes an annular groove adjacent the enlarged head which facilitates the seating of the head on the end of the capillary tube.
Patent CA-2072881-C (CA)
Inventor: KALOTA DENNIS J
IPC: C23F11/06
Filed: 1990-08-06
Granted: 1999-12-21
Abstract: Compositions comprenant certains acides aminés tels que l'acide aspartique, lesquels, lorsqu'ils sont entièrement ionisés à un pH alcalin, remplissent efficacement la fonction d'inhibiteurs de corrosion pour des métaux ferreux, en présence d'un milieu aqueux. On améliore cet effet par une vitesse de fluide augmentée.
Patent CA-2073015-C (CA)
Title: Forming of pressed trays
Inventor: BAUM GARY A
IPC: B31B50/59
Filed: 1991-09-04
Granted: 1995-02-14
Abstract: A product (10) press formed from a paperboard and a method for forming the same is provided, wherein the product in-cludes a press formed three-dimensional curvilinear region (20) containing a formation improvement structure for preventing the machine directionality of the paperboard from distorting the product from its desired shape. The press formed paperboard pro-duct (10) comprises a planar wall (12) having a periphery which is at least partially curvilinear and a peripheral wall (14) angular-ly oriented with respect to the planar wall (12). The press formed three-dimensional curvilinear region (20) extends radially out-wardly from the curvilinear periphery of the planar wall (12) while simultaveously curving out of the plane defined by the planar wall (12). The formation improvement structure includes a peripherally extending crush score line (24, 25, 30, 31, 42 and 43) hav-ing a substantial directional component extending generally parallel to the curvilinear portion (20) of the periphery of the planar wall (12). The crush score lines (24, 25, 30, 31, 42 and 43) may be circular, sinusoidal or saw tooth shaped.
Patent CA-2078729-C (CA)
Title: Surgical cap and mask
Inventor: WYATT CHRISTINE
IPC: A41D13/11
Filed: 1992-09-21
Granted: 1995-07-25
Abstract: A one piece garment constructed for use in a health care environment and the like.  The garment includes a major portion positionable over the head of the wearer, the major piece having a forward edge positionable across the forehead of the wearer and rearward edge positionable across the back of the head of the wearer.  The garment also includes a minor portion positionable over the face of the wearer, the minor piece having an upper edge positionable beneath the eyes and above the nose of the wearer and a lower edge positionable across the throat of the wearer. The major and minor portions are joined to form ear openings therebetween and to also form a neck opening between the rearward edge of the major portion and the lower edge of the minor portion, and to also form an eye opening between the forward edge of the major portion and the upper edge of the minor portion.
Patent CA-2083682-C (CA)
Inventor: HOFFMANN EDUARD
IPC: B41N6/00
Filed: 1992-11-24
Granted: 1996-10-29
Abstract: A circumferentially continuous printing plate, which has the advantage over clamp plates that a clamping arrangement and groove in a plate cylinder can be eliminated, is formed by rolling a flat printing plate into tubular or sleeve form and welding the end edges together, preferably by a neodymium-YAG laser weld, resulting in a narrow, less than 1 mm wide, weld seam (2) having upper and lower concave sides.   The plate can be coated and imaged when flat or after having been rolled and installed on a plate cylinder  (37)  of a printing machine.          Interengaging projection-and-recess elements (4, 6; 14, 16) are formed  on  the  plate  (1, 1')  and  on  the  cylinder  (37), respectively, to ensure lateral and circumferential register.
Patent CA-2092329-C (CA)
Title: Insertion station for envelope-stuffing apparatus
Inventor: METZLER KURT-OTTO
IPC: B43M3/04
Filed: 1993-03-24
Granted: 2004-10-26
Abstract: In an insertion station for a mail-handling machine having insertion arms actuated by axles, rotary tension-adjustment means are connected between the axles and the insertion arms fox reducing bounce of the arms
Patent CA-2095068-C (CA)
Title: Laser machining apparatus
Inventor: ZUMOTO NOBUYUKI
IPC: B23K26/06
Filed: 1993-04-28
Granted: 1996-10-22
Abstract: A laser machining apparatus comprises a mask, a reflecting mirror and an imaging optical system.  Laser light reflected by the mask and also by the reflecting mirror passes through the mask and images on the work for machining the work. The laser machining apparatus comprises means for causing said mask to move in parallel with said work for machining the work.  This laser machining apparatus is able to machine a work having a large surface using a small apertured mask.   Another type of laser machining apparatus comprises a mask, a platform and an imaging optical system.  The mask and the work are mounted in the same plane on the platform and driven so that the image of the mask is mapped on the work via the imaging optical system.  The laser machining apparatus is able to machine a large area economically and with high accuracy.
Patent CA-2098531-C (CA)
Inventor: YOKOYAMA KEIICHI
IPC: H01M10/0569
Filed: 1993-06-16
Granted: 1997-12-23
Abstract: Disclosed  are  a  solvent  for  cell  electrolyte comprising  a carbamate  represented by the  following formula [1];     (see fig. I) wherein R1, R2 and R3 independently represent a linear or  branched  alkyl  group.  cell  electrolyte  and non-aqueous  electrolyte  battery  comprising  the  solvent.          The  solvent  can  provide  batteries  showing  high withstand   voltage   and   excellent   charge/discharge efficiency.
Patent CA-2099436-C (CA)
Title: Transmission error recovery for digital communication systems
Inventor: GROVER GLEN A
IPC: H04N21/236
Filed: 1993-06-30
Granted: 1998-10-27
Abstract: A succession of variable length data packets containing a header portion and data portion are received.  Selected data from the data packet headers is stored in designated locations of a header memory.  A data packet start address is provided with each stored header portion to designate a location in a data memory for commencing the storage of data contained in a corresponding data packet.  The data from the received data packets is stored commencing in the data memory locations designated by the corresponding data packet start addresses.  In an illustrated embodiment, the data packets are macroblocks from digitized television frames.  A plurality of next data packet position indicators are provided in the data, for use in periodically verifying macroblock boundaries during the receipt of the television data and to provide a rapid recovery from a transmission error affecting the actual or identified length of a macroblock.
Patent CA-2100955-C (CA)
Title: Device for charging combustible solids to rotary kilns
Inventor: TUTT JAMES R
IPC: F27D99/00
Filed: 1992-01-27
Granted: 1996-09-10
Abstract: An apparatus (28) is pro-vided for charging combustible solids (30) through a port (35) in the wall (37) of a rotating kiln (10) into a heated zone of the kiln. The apparatus (28) in: cludes a port closure (36) com-prising inner and outer portions (64, 62) which cooperate to de-fine a passage (86) for closure: cooling air flow when the clo-sure (36) is in a port-closed po-sition. A transfer assembly (34) is mounted on the kiln wall (37) in aligment with the port'(35). During kiln rotation combusti-ble solids (30) are loaded from a staging assembly (32) onto the transfer assembly (34) for alig-ment with the port (35) and de-livery into the kiln (10).
Patent CA-2105685-C (CA)
Inventor: NEUBURGER GLEN GARY
IPC: G08B21/16
Filed: 1992-02-26
Granted: 1999-09-07
Abstract: Système de détection de gaz entrant facilement en réaction assurant une alerte précoce en cas d'émissions de gaz telles que celles se produisant en cas d'incendies sur des sites tels que les centraux téléphoniques, où se trouvent en abondance des substances halogénées telles que les gaines de câbles en chlorure de polyvinyle et les matériaux bromés de retardement du feu. Un certain nombre de détecteurs (122) à microéquilibre renfermant des oscillateurs à quartz enduits d'une couche de zinc ou d'un composé de zinc sont répartis dans les locaux et le rythme d'évolution de la fréquence des oscillations de cristal est observée cycliquement par un compteur (130) de fréquences régulé par un système de traitement de données (112). Lorsqu'il se produit un changement de fréquence au-delà d'un seuil significatif dans l'un quelconque des détecteurs, les mesures de fréquence subséquentes sont effectuées de préférence au niveau du détecteur en alerte sur une période de cycle prolongée avec un haut degré de résolution, de manière à confirmer le dépassement effectif du seuil. La prolongation au-delà d'une limite déterminée de l'incursion dans les valeurs élevées de la fréquence mesurée déclenche le signal d'alarme.
Patent CA-2106781-C (CA)
Inventor: LARSSON BO
IPC: E04B2/76
Filed: 1992-03-25
Granted: 2002-10-15
Abstract: The invention relates to a frame structure to be provided with panels and comprising vertical stud members (12) and trans-verse girders (13) mounted therebetween. The stud members and the transverse girders comprise channel shaped metal sheet sec-tions having inwardly bent edge flanges (18, 18'). According to the invention, the transverse girders form at one end thereof two slots (22, 22') extending through the limbs (20) of the channel shaped section and partly into the edge flanges (21) and the web 19) of the channel shaped sections in order that the transverse girders (21) shall receive therein the edge flanges of a vertical stud member: Moreover, the transverse girders at the other end form at lean one tongue (25) to be received in an aperture (29) in the web (16) of a vertical stud member. The tongue has a latch member (27) for latching the tongue when inserted into the aperture.
Patent CA-2108975-C (CA)
Inventor: MARSHALL JOHN
IPC: C11D3/395
Filed: 1992-04-22
Granted: 2001-01-30
Abstract: The invention provides a solid lavatory cleansing block formed of a composition comprising (A) from 5% to 80% by weight of a surface active component comprising one or more anionic surface active agents; (B) from 10 to 75% by weight of a chlorine release agent component consisting of one or more chlorinated cyanuric acid derivatives and chlorine agents; and (C) from 2 to 25% by weight of a solubility control agent (as hereinbefore defined); the composition containing not more than 20% by weight of water-soluble inorganic salt introduced with the anionic surface active agent component and containing no other added fillers or diluents.
Patent CA-2111446-C (CA)
Inventor: QUALLICH GEORGE J
IPC: A61P3/08
Filed: 1992-07-01
Granted: 1997-12-16
Abstract: Deux nouveaux intermédiaires optiquement purs, (R)-4-(2-bromo-1-hydroxyéthyl)-2-trifluoro(-)méthylthiazole et (5)-4-oxyranyl-2-trifluorométhyltiazole, qui sont utiles dans la synthèse d'une classe d'agents antidiabétiques puissants. L'invention concerne également un procédé de réduction énantiosélective pour la préparation de ces intermédiaires.
Patent CA-2130209-C (CA)
Inventor: CUNNINGHAM PATRICK M
IPC: B06B1/00
Filed: 1994-08-08
Granted: 1997-04-29
Abstract: Mounting means for a vibratory member, such as an elongate half wavelength resonator, include a pair of cylindrical tubes, each tube coupled with one end to the nodal region of the member and the other end of each tube coupled to a stationary clamping means disposed about the member.  The axial length and the thickness of the tubes are selected to enable the tubes to flex radially responsive to the substantially radial vibrations manifest at the nodal region of the member, whereby to decouple the vibrations of the member from the stationary clamping means.
Patent CA-2132093-C (CA)
Inventor: MATVIYA THOMAS M
IPC: C01B32/384
Filed: 1994-01-20
Granted: 2001-08-07
Abstract: Carbonaceous chars capable of catalyti-cally decomposing aqueous hydrogen peroxide at higher rates at given char densities than other known catalytic chars are provided for. This improvement is provided by an increase in the catalytic activity at a given char density of the said catalytically-active carbonaceous char. The catalytically-active carbonaceous chars ase useful for, but not limited to, the catalytic conversion of H2S, SO x, NO x, peroxides, and/or chloramines in liquid and/or gaseous media. The catalytic activ-ity of the char can be measured by adding the char to an apparatus (10) comprising a Dewar container (11) positioned on a magnetic stirrer (12) including a stir bar (13), a cap (14), a fun-nel (15), a vent (16), an opening (17), a thermo-couple (18), an ice point compensator (21) and a strip chart recorder (22).