baber/WOPTO huggingface dataset:
Patent CA-2148306-A1 (CA)
Title: Surface-curved optical element adapted for emergence and incidence of parallel light rays
Inventor: TANAKA HIROKAZU
IPC: G02B5/00
Filed: 1995-05-01
Abstract: The  invention  relates  to  an  optical  element  being conveniently useful,  for example as an external cover of transmitter and/or receiver for optical communication and more  particularly  to  a  surface-curved  optical  element comprising  a  transparent  body  of  a  refractive  index  n having a pair of boundary surfaces defined in their cross-section by the corresponding pair of ellipsoidal curves of an eccentricity l/n. The boundary surfaces of this surface-curved optical element are configured so that they should have  their  focal points  aligned  with  one  another on  a straight line and their focal points which are remote from vertices   of   the   respective   ellipsoidal   surfaces corresponding to the apsides of the respective ellipsoidal curves  should  be  coincident  with  each  other,  whereby parallel  light  rays  entering  the surface-curved  optical element should emerge from this in the form of the parallel light rays without any disturbance.
Patent CA-2150036-A1 (CA)
Title: A material for a bone substitute and the manufacturing method thereof
Inventor: KOKUBO TADASHI
IPC: A61F2/00
Filed: 1994-11-07
Abstract: It is an object of the present invention to offer a material suitable for use as a bone substitute, which provides both the fracture toughness of titanium and the bioactivity of apatite, wherein titanium and apatite is tightly adhered, and which is available at low cost.      The material is produced by soaking a substrate made of titanium Ti or titanium Ti alloys into alkaline solution, followed by heating of the said substrate to the level of at most the titanium Ti transition temperature.
Patent CA-2150361-A1 (CA)
Title: Safety utility knife
Inventor: KEKLAK RONALD
IPC: B26B5/00
Filed: 1993-11-29
Abstract: An improved safety utility knife (Fig. 1) has a hollow handle (10) and a blade (32) which is normally retracted within the handle (10), but can be extended by squeezing an operating lever (22). The lever (22) is connected to the blade holder (28) by a toggle linkage (36, 38) having a rearmost pin (42) secured in a discrete mount (44) whose position is adjustable. A thumbscrew (58) threaded into the mount (44) enables one to adjust the position of the mount (44) from outside the handle (10), and thus change how far the blade (32) protrudes from the handle (10) when the operating lever (22) is fully depressed.
Patent CA-2152010-A1 (CA)
Inventor: GRENIER MAURICE
IPC: F25J3/04
Filed: 1995-06-16
Abstract: Dans ce procédé du type "à pompe", l'air est réparti en plusieurs flux. Un premier flux est comprimé à la moyenne pression, refroidi et envoyé à la double colonne de distillation. Un deuxième flux est comprimé au-dessus de 25 bars environ, mai au-dessous de la pression de condensation par vaporisation de l'oxygène liquide sous pression, puis refroidi jusqu'à une température intermédiaire, où une partie de l'air poursuit son refroidissement et est liquéfié, puis détendu et envoyé à la double colonne, tandis que le reste est turbiné. Application aux installations de production d'oxygène de grande taille.
Patent CA-2152871-A1 (CA)
Inventor: DANROC JOEL
IPC: C01F17/00
Filed: 1995-06-28
Abstract: L'invention concerne un oxysulfure de terre rare et/ou d'yttrium qui comprend à titre d'additif au moins un composé distinct du précédent et choisi dans le groupe constitué par les terres rares et l'yttrium et qui est caractérisé en ce qu'il présente en surface un équilibre ou un déficit en oxygène. Le procédé de préparation de l'oxysulfure de l'invention est caractérisé en ce qu'on calcine en présence d'hydrogène un oxysulfure de terre rare comprenant à titre d'additif au moins un composé distinct du précédent et choisi dans le groupe constitué par les terres rares et l'yttrium. L'invention couvre aussi une composition luminescente contenant un oxysulfure de terre rare et/ou d'yttrium du type précité.
Patent CA-2155055-A1 (CA)
Title: One button gas shutoff apparatus
Inventor: GAMBILL KENNETH F
IPC: F24C3/12
Filed: 1995-07-31
Abstract: An apparatus for controlling a gas supply to a gas appliance, having valve means disposed in a gas supply and an activation means for controlling the valve means. In a preferred embodiment, the present invention is used in a free-standing gas range having a control panel whereon the activation means which is a rotary mechanical knob is disposed. Further, the valve means used in the gas shutoff apparatus is mechanically activated. In a further embodiment, the apparatus for controlling a gas supply to a free-standing gas range having a control panel whereon the activation means is disposed, further has an electrical push-button switch which controls an electromechanically activated valve means.
Patent CA-2155879-A1 (CA)
Title: Card game using cards having pictures of scenes and activities associated with different rooms in a home
Inventor: GERRARD BARBARA
IPC: A63F1/02
Filed: 1995-08-11
Abstract: A card game includes seventy two cards in six different categories or sets.  The cards in each set are numbered con-secutively from one to twelve; cards in the range from one to six constitute the low numbered cards, whereas cards in the range from seven to twelve constitute the high numbered cards.  The game includes a bidding phase, and a playing phase.  During the bidding phase the players predict, or claim, the number of tricks that they will take.  During the playing phase the players play cards individually, to win tricks according to the number value on the respective cards.          The winning bidder determines whether the play will take place with the low numbered cards or the high numbered cards.
Patent CA-2155946-A1 (CA)
Title: Process for machining components made of brittle materials and a device for carrying out the same
Inventor: KONDRATENKO VLADIMIR STEPANOVI
IPC: B24B37/04
Filed: 1993-02-12
Abstract: The process involves optimizing the load conditions for the machined surfaces of the components, selecting and applying the optimum permissible specific force applied to the tool in the light of the relative thickness of the machined component, and using laser cutting to cut the edges of the components to size after the surface of the components has been machined. The process disclosed is carried out using a novel diamond-abrasive tool and novel devices for the devices concerned.            According to one variant, the device comprises a surface plate (1) with a diamond-abrasive tool and a surface plate (2) arranged eccentrically on which are mounted holders (5) with recesses for the components (4). Each recess has a resilient lining (6). Force is applied by means of a clamping mechanism (7). When surface plates are displaced in relation to each other and the diamond-abrasive layer on the tools is used with a specified configuration and composition of the preforms, and also 20 of the resilient linings whose thickness is calculated using the formula cited, the device in question facilitates the cretion of the desired surface and adjustment of the force exerted by the tool on the component.
Patent CA-2160950-A1 (CA)
Title: Lamp assembly with resilient connector for locating and cushioning neon lamp
Inventor: SCHMITT ROBERT J JR
IPC: H01R33/02
Filed: 1995-10-19
Abstract: A neon lamp assembly includes a housing having a cavity with an aperture for emission of light, a neon lamp mounted within the cavity in the housing for emission of light through the aperture and a lens covering the aperture in the housing.  Connectors are secured to opposite ends of the neon lamp.  Each connector includes a resilient boot that is positioned in a recess in the housing.  The resilient boot locates the lamp in the housing and cushions the lamp against shock and vibration.  The neon lamp assembly further includes a light-transmissive, conductive mesh covering the aperture in the housing for substantially blocking the emission of RF energy from the housing, and an electrical conductor for coupling the conductive mesh to a reference potential, such as ground.  The neon lamp is typically used as a stop light in a vehicle.
Patent CA-2161041-A1 (CA)
Inventor: DAVIDIAN RICHARD M
IPC: E05B65/08
Filed: 1995-10-20
Abstract: A pocket door latch assembly has a housing with a latch arm pivotally mounted therewithin.  The latch arm has a latch nose at one end and an inverted generally  V-shaped slot adjacent its other end, and the arm is pivotable between a first position wherein it is entirely within the housing and a second position wherein the latch nose extends outwardly of the housing.  An actuator has a portion slidable within the slot between a first position adjacent the one end of the arm and a second position spaced from the one end to pivot the latch arm between its first and second positions.  The actuating means is manipulable outwardly of the housing to slide the slidable portion of the actuating means within the slot between its first and second positions, thereby pivoting the latch arm between its positions.
Patent CA-2164023-A1 (CA)
Title: Brake for in-line roller skate
Inventor: DALLAIRE RICHARD JOSEPH
IPC: A63C17/14
Filed: 1995-11-29
Abstract: The brake is mounted to the front of an in-line roller skate and has a brake pad provided with two braking surfaces, one of which faces down and the other of which faces up. The former surface is used to brake the skate but the pad may be rotated when that surface is worn so that the other surface may be used to brake the skate. The brake pad is attached to the skate by means of a L-shaped bracket. The brake pad is attached to one arm of the bracket while the other arm is attached to a side wall of the roller skate.
Patent CA-2166145-A1 (CA)
Title: Sash Balance Brake Assembly
Inventor: PRETE JAMES G
IPC: E05D15/22
Filed: 1995-12-27
Abstract: A sash balance brake assembly for a sash window system is disclosed. The sash window system includes a window frame having a pair of generally parallel tracks. Each of the tracks has an outer wall, front and back intermediate walls and front and back inner walls collectively defining a channel. A sash window is transversely disposed between the tracks and is adapted for slidable movement along the tracks. A pair of sash balance assemblies provide a generally upward bias on transverse sides of the sash window. The sash balance brake assembly comprises a rotor rotatable about a rotor axis, a bolt having a generally planar engaging surface, a slider body for placement in a respective one of the channels and for coupling to a respective one of the sash balance assemblies. The slider body includes an aperture for rotatably supporting the rotor adjacent the bolt. The rotor and the bolt include cooperative camming surfaces for converting rotary motion of the rotor into movement of the bolt along the rotor axis, such that the bolt engaging surface selectively engages and disengages the track outer wall.
Patent CA-2170609-A1 (CA)
Inventor: WILSON ROBERT SAMUEL
IPC: B29C64/129
Filed: 1995-06-28
Abstract: A method of producing a structural component (12) from a primary wall structure (14) which defines a plurality of juxtaposed primary cells (15) which extend between and which are open to the front face and the rear face of the component (12) and a secondary wall structure (16) within the primary wall structure (14) which divides each primary cell (15) into two or more subcells (151, 152) comprises first forming the primary wall structure (14) and then forming the secondary wall structure (16) within the primary wall structure (14) by bringing the primary wall structure (14) into a condition in which it lies within a body of liquid, the surface of which provides or is provided with a photosensitive layer and in which the photosensitive layer is at a predetermined level in each primary cell (15) and exposing the photosensitive layer to radiation source to bring the photosensitive layer to a consolidated state within the primary wall structure (14) to form the secondary wall structure (16). Where the component (12) is a noise attenuation panel, the secondary wall structure (16) may be so formed as to provide for the required sound absorption properties while providing substantially no support for structural loads.
Patent CA-2170990-A1 (CA)
Inventor: CULLER SCOTT R
IPC: B24D3/00
Filed: 1994-08-04
Abstract: An abrasive article is presented which includes a backing having a front and back surface, and an abrasive coating bonded to the front surface of the backing. The abrasive coating comprises a homogeneous mixture of a plurality of abrasive particles, a binder and a grinding aid. The binder serves to bond the abrasive coating to the backing and the grinding aid comprises at least 1 % by weight of the abrasive coating, but not more than 50 % by weight. It is preferred that the abrasive coating consists essentially of a plurality of precisely shaped abrasive composites. Methods of making and using the abrasive articles are also presented.
Patent CA-2171396-A1 (CA)
Inventor: SOVEREIGN LEWIS V G
IPC: A41D13/05
Filed: 1996-03-08
Abstract: A garment for use by a wearer when seated comprises a waist band with a rectangular pad depending downwardly from the rear of the waist band having a width to extend around the rear of the wearer and a depth to extend downwardly beyond the crotch of the wearer. On an inner or front surface of the pad is provided a utility pocket with a bottom edge of the pocket at the bottom edge of the pad and a pocket arranged centrally with a top edge of the pocket below the crotch of the wearer so that the pocket is presented forwardly between the legs of the wearer when the wearer is seated. On the outside of the pad is provided a transparent plastic cover defining a pocket for receiving printed information such as a sports logo with the upper edge of the pocket at the waist band so that the pocket is closed by pulling the waist band around the waist of the wearer.
Patent CA-2172464-A1 (CA)
Inventor: CUDMORE MARY JANE
IPC: A47G23/03
Filed: 1996-03-22
Abstract: The disclosure describes a manner of preventing the condensed moisture on the outside of a goblet like glass having a stem from running down the stem and wetting the uasers clothes or himself. A pair of water absorbent doilies are positioned about the stem of the goblet to collect the conensation and prevent it from dripping off onto the user. Each of the pair of doilies has a split  body forming wings thereto on each radius and when each doilie is twisted to face the other about the stem the wings made by the split can be positioned to interlock and prevent the doilies from flying off the stem when the glass and combined doilies are moved about quickly by the user.
Patent CA-2172775-A1 (CA)
Inventor: ELLIS THOMAS J
IPC: F16B41/00
Filed: 1996-03-27
Abstract: A one-directional captive screw attachable to a panel that is hand tightenable, but requires a tool to loosen once hand tightened.  The captive screw includes a screw having a head with a recess and a threaded portion, a knob having a central longitudinal axis coaxial with the screw, a one-directional ratchet between the knob and the screw.          The ratchet engages to allow the screw to be tightened in a clockwise direction using the knob, and disengages when rotated in a counterclockwise direction, such that a tool is required to loosen the screw by use of the recess.
Patent CA-2175062-A1 (CA)
Inventor: BOELEMA ELTJO
IPC: C01B15/037
Filed: 1994-10-26
Abstract: A process for the bleaching of pulp comprising the step of bleaching the pulp with hydrogen peroxide and an effective amount of at least one biodegradable 1-aminoalkane-1, 1-diphosphonate chelating agent to enhance the bleaching of the pulp, is disclosed. Also disclosed is the use of a 1-aminoalkane-1,1-disphophonate to enhance the bleaching of pulp with hydrogen peroxide, as well as the pretreatment of pulp with a 1-aminoalkane-1,1-disphophonate prior to the step of bleaching with hydrogen peroxide. Finally, the deinking of pulp in the presence of 1-aminoalkane-1,1-diphosphonate is also disclosed.
Patent CA-2175270-A1 (CA)
Title: Anode structure for electrowinning metals by anodic processes different from oxygen evolution and for electrochemical processes with separator
Inventor: OLPER MARCO
IPC: C25C7/02
Filed: 1996-04-29
Abstract: An anode structure for cells divided by a separator of membrane or diaphragm type, characterised by consisting of a substantially box body within which feed, discharge and hydraulic sealing means for a catholyte or anolyte solution are provided, said separator facing a perforated anode plate to which it remains adhering at every point by the effect of a hydraulic head created by the level of said solution relative to the level of the solution contained in said cell.
Patent CA-2175735-A1 (CA)
Title: Hot melt adhesives based on hydroxy-functional polyesters
Inventor: SHARAK MATTHEW L
IPC: C09J167/00
Filed: 1996-05-03
Abstract: Hot melt adhesive compositions, particularly biodegradable hot  melt adhesives are prepared from 10 to 90% by weight of a thermoplastic methylol polyester prepared from the reaction of at least one dicarboxylic acid with a diglycidyl ether, a diglycidyl ester or a combination thereof; 0 to 90% by weight of a compatible tackifier; 0 to 80% by weight of a compatible plasticizer; 0 to 50% by weight of a compatible wax diluent and 0 to 3% by weight of a stabilizer.
Patent CA-2178602-A1 (CA)
Title: Microcapsules, method of making and their use
Inventor: SCHNEIDER MICHEL
IPC: A61K49/18
Filed: 1995-11-21
Abstract: The invention relates to micro capsules with a mean size from a fraction of micrometer to 1000 micrometers having a biodegradable membrane encapsulating a gas cone. The membrane comprising one or more biodegradable water insoluble lipids or mixtures thereof and optionally mixtures of the lipids with up to 75 % by weight of biodegradable polymers encapsulates the core which is filled with air or a gas. Microcapsules disclosed, may be non-coalescent, dry and instantly dispersible, when in suspension in a physiologically acceptable carrier are useful as delivery vehicles for therapeutically active agents and/or as contrast agents for echographic imaging of organs of human or animal body. The microcapsules of the invention are made by a method in which a water-in-oil emulsion is made from am organic solution comprising dissolved a mono-, di-, triglyceride preferably tripalmitin or tristearin and optionally therapeutically active substance and an aqueous solution containing a surfactant, optionally evaporating part of the solvent, adding a redispersing agent and freeze drying the mixture. The freeze dried mixture is then redispersed in an aqueous carrier to separate microcapsules from debris and the semi-spherical or spherical microcapsules are dried.
Patent CA-2179828-A1 (CA)
Title: Incandescent halogen lamp
Inventor: DOBIASCH PETER DR
IPC: H01K5/00
Filed: 1994-12-22
Abstract: An incandescent halogen lamp is operated under convection-free conditions. In this way, light yields of about 15 to 20 lm/W with service lives of about 2000 hours can be attained. The important parameters are the bulb dimensions, luminous element dimensions, and fill gas properties.
Patent CA-2182651-A1 (CA)
Inventor: LIEBICH MAX
IPC: A24C5/40
Filed: 1996-08-02
Abstract: A system for the self-production of cigarettes by consumers, using an industrially prefabricated tobacco portion pack which in itself is non-smokable and takes the form of a string-like tobacco filling which is wrapped in a tobacco wrapper and is the equivalent of a tobacco portion for filling the tobacco receptacle of an associated filter cigarette paper tube or a part thereof, and which comprises a device for transferring the string-like tobacco portion into the tobacco receptacle of the filter cigarette paper tube. The device contains a transfer tube (5) which is cantilevered to a housing (2) which serves as a mounting; one or more tobacco portions are transferred into the transfer tube from tobacco portion packs, following which these tobacco portions are transferred from the transfer tube (5) into the filter cigarette paper tube.
Patent CA-2183498-A1 (CA)
Inventor: SPARKS WALTON E
IPC: F24C15/16
Filed: 1996-08-16
Abstract: An oven includes an oven liner partially defining a cooking cavity having a bottom wall.  The oven liner has a bottom wall which together with a glass-ceramic panel forms the bottom wall of the cooking cavity.  The bottom wall of the oven liner has a bowl-shaped depression forming bottom and lateral sides of a chamber.  The glass-ceramic panel covers the depression and defines a top wall of the chamber.  The bottom wall of the oven liner forms a recessed seat for the glass-ceramic panel around a periphery of the depression such that a top surface of the bottom wall of the cooking cavity is smooth.  A periphery of the glass-ceramic panel is sealed with a high temperature sealant to prevent leakage of spills from the cooking cavity to the chamber.  A heating element is provided within the chamber to heat the cooking cavity.  In an alternative embodiment, the oven includes a tray received within an enlarged bottom portion of the oven liner and supported by the bottom wall of the oven liner.  The tray together with the glass-ceramic panel forms the bottom wall of the cooking cavity and forms the bowl-shaped depression and recessed seat.
Patent CA-2184356-A1 (CA)
Inventor: ROTHER RUSSELL P
IPC: C07K19/00
Filed: 1995-03-01
Abstract: Séquences nucléotidiques codant des protéines chimères comprenant une partie fonctionnelle constituée d'un inhibiteur de complément terminal parent tel que le CD59, et un domaine transmembranaire hétérologue. L'inhibiteur de complément terminal est modifié de sorte que sa séquence de signaux GPI soit inactivée. Le domaine transmembranaire hétérologue sert à ancrer la protéine chimère à la membrane de la cellule sans que cela n'affecte l'activité inhibitrice de complément de l'inhibiteur de complément terminal. Les séquences nucléotidiques et les protéines chimères codées peuvent être utilisées pour protéger les cellules contre l'attaque d'un complément.
Patent CA-2184510-A1 (CA)
Inventor: LAUGIER PASCAL
IPC: A61B5/103
Filed: 1995-03-24
Abstract: Procédé d'évaluation et de caractérisation in vivo des propriétés mécaniques ou architecturales des os, par propaga-tion d'une onde ultrasonore au travers de l'os et l'étude de l'interaction de cette onde avec l'os, caractérisée en ce que: on réalise un balayage de l'os à l'aide d'un faisceau ultra-sonore obtenu à partir de transducteurs focalisés; on recueille les signaux transmis au travers de l'os et/ou réfléchis par les faces de l'os et/ou diffusés par les structures internes de l'os; on met en mémoire les signaux obtenus et on traite les signaux ainsi stockés pour la mesure de la vitesse de propagation du faisceau ultrasonore dans l'os, de l'épaisseur de l'os, du co-efficient d'atténuation en transmission du faisceau ultrasonore et des paramètres de réflexion pour l'estimation des coefficients de rétro-diffusion et d'atténuation.
Patent CA-2185978-A1 (CA)
Title: Golf club fitting system and method therefor
Inventor: HENDRICKSON ALAN
IPC: A63B57/00
Filed: 1996-09-19
Abstract: The present invention relates to a system for custom fitting golf clubs to the unique requirements of the golfer.  The system has testing equipment for determining the specifications for the custom fitted golf clubs for the golfer.  A golf club holding trailer is used for holding a plurality of different types of golf clubs for allowing the golfer to select at least one of the golf clubs that conform to requirements determined by the testing equipment.