baber/WOPTO huggingface dataset:
Patent CA-2041152-A1 (CA)
Inventor: HAGIRAHIM HASSAN
IPC: H04L12/28
Filed: 1991-04-24
Abstract: A multi-user Time Division Multiplex (TDM) system includes a plurality of stations connected by one or more unidirectional data buses. A "queue of request" (QR) counter is added to each station having destination slot release capability. The QR count indicates how many outstanding requests there are for idle time slots from "downstream" stations. The QR counter is incremented when a station becomes active (i.e., has a data transmit request). The QR counter is decremented when a busy time slot is released to an idle time slot condition, as long as outstanding requests exist from downstream stations. When the QR count is negative (indicating more idle slots than requests), a station erases a request signal received from a downstream station. When the QR count is positive (more requeststhan idle slots), a station writes an additional request signal to upstream stations. When the QR count is zero, request signals are not altered by a station. A separate QR counter and associated circuitry is utilized by each unidrectional bus of the TDM system.
Patent CA-2041671-A1 (CA)
Title: Impeller-mounted electrostatic air filter
Inventor: PUJOLAS F T MARK
IPC: B03C3/30
Filed: 1991-05-02
Abstract: ABSTRACT OF THE DISCLOSURE           In  a  standard  electrostatic  air-filtration  system filtration is achieved by the passage of air propelled through the filter by means of the intervention of a device the purpose of which is to propel the air which at some point passes through the filter.  The greater the ability of the filter material to create a static  electric charge  the more effective will  be the air filtration.  In this invention air filtration is more effectively achieved by constructing the filter using a filter media, such as electret,   between   layers   of   ionizing  material   such   as polypropylene.   By utilizing more than one  layer of  such an ionizing material not only is filter efficacy increased so is its structural strength.  In this invention the passage of air through the filter may be achieved by the intervention of a propulsion device used in conjunction with an air-circulation system, examples being those found in a vehicle or in a  house furnace, or it may be achieved by the natural process of airflow entering into the system particularly that found in a vehicle.  By placing the filter around the impeller of the blower fan of the air-circulation system, particularly that of a vehicle, ease of installation without system modification is achieved.  The introduction of this filter into any such system, in conjunction with the passage of air through the filter, will create an environment for the occupants of the area serviced by the system that is substantially free of airborne impurities, and by reason therefor, benefit those occupants.
Patent CA-2042123-A1 (CA)
Inventor: HARISIADES PAUL
IPC: G02C7/04
Filed: 1991-05-08
Abstract: Hydroxyethyl Cellulose Derivatives Containing Pendant (Meth)Acryloyl Units Bound Through Urethane Groups and Hydrogel Contact Lenses Made Therefrom Abstract The instant invention relates to methacrylate functionalized hydroxyethyl cellulose which is crosslinked with conventional vinylic monomers to form soft hydrogel contact lenses possessing high oxygen permeability, wettability, and mechanical strength.
Patent CA-2042769-A1 (CA)
Inventor: MARTIN JEAN-PAUL
IPC: H01R4/58
Filed: 1991-05-16
Abstract: Contact électrique caractérisé en ce qu'il comprend un élément mâle et un élément femelle dans lequel l'élément mâle est monté coulissant à frottement dur. Une chambre d'air est ménagée entre l'extrémité de l'élément mâle et le fond de l'élément femelle. Ces deux éléments mâle et femelle sont au moins partiellement en une matière poreuse imbibée d'une solution aqueuse chargée de particules submicroniques métalliques.
Patent CA-2044122-A1 (CA)
Title: Storage device with positive displacement dispenser by means of egress through a pierced septum
Inventor: SCHLOSSER MARK S
IPC: A61J1/06
Filed: 1991-06-07
Abstract: STORAGE DEVICE WITH POSITIVE DISPLACEMENT DISPENSER    BY MEANS OF EGRESS THROUGH A PIERCED SEPTUM               Abstract of the Disclosure A positive displacement ampule for storing a fluid therein and dispensing the fluid therefrom. The ampule includes an elongate vessel for storing the fluid having a large diameter base portion at one end thereof joined to a small diameter stemportion at the other end thereof, a piston disposed in the vessel  at the base end thereof for forcing the fluid from the vessel, a fracture probe for fracturing the base end of the vessel and needle for inserting into the fractured base end of the vessel and for piercing the piston such that one end of the needle protrudes outwardly from the vessel and the other end of the needle communicates with the fluid in the vessel. In this manner, the fluid is pumped from the vessel through the needle by pushing the piston in the direction of the fluid. The positive displacement ampule is manufactured by providing the elongate vessel with the stem end of the vessel being open and the base end of the vessel being closed, injecting a monomer liquid into the vessel through the open stem end thereof, polymerizing the liquid so as to convert the liquid to a solid designed to function as a piston, injecting the fluid into the vessel through the open stem end thereof in such a manner as to maintain the fluid between the piston and the stem end sealing the stem end of the vessel.
Patent CA-2045762-A1 (CA)
Title: Acrylates with an alcohol, aldehyde and/or ether group; process for preparing the same and their use for the production of new polymers and copolymers
Inventor: BERTHE MARIE-CHRISTINE
IPC: C07D305/08
Filed: 1991-06-26
Abstract: Acylates (I) contg. more than one alcohol, aldehyde or ether function, are of formula (I)-(III). A is gp. of formula (i) R= 1-12C alkyl; 5-12C cycloalkyl; aryl; arylalkyl; or alkylaryl; Y = 1-12C allyl; 6-12C aryl; 5-10 atom ring contg. N, O, or S; (1-4C allyl)-aryl; esp. (CH2)n; phenylene, 3,3'-or 4,4'-diphenyl; 2,5-thiophenyl; or 2,5-furyl; Z contains at least 2C giving a 4-8 atom ring, esp (CH2)2, (CH2)3 or phenylene; n = 4-12. Prepn. of (I) is effected by reacting at pref. 15-125deg.C CH2= CH-COOR (II, pref 0.2-10 moles) with OHC-Y-CHO (III, 1 mole) with presence of (a) (pref. 2-20 mole%, w.r.t. II + III of) a catalyst e.g. a cyclic tert-amine, contg. at least one N-atom common to three rings; and (b) an electrophilic activator and opt. a solvent.
Patent CA-2052419-A1 (CA)
Title: Motor vehicle turntable
Inventor: MUELLER WIELAND R
IPC: B60S13/02
Filed: 1991-09-27
Abstract: ABSTRACT OF THE DISCLOSURE     An improved motor vehicle turntable is provided that may be installed in any location, typically in front of a garage for the purpose of rotating a vehicle so as to enable it to leave the area in the opposite direction from which it entered the garage.  The motor vehicle turntable has a circular vehicle receiving platform supported by a polygonal support frame.  The receiving platform and support frame are received within a cylindrical pit so that the upper surface of the platform is level with the surrounding terrain into which the pit is formed.  A chain drive frictionally engages the perimeter of the polygonal support frame to rotate the receiving platform when the chain is moved by means of a drive motor and sprocket arrangement.          The drive motor and sprocket arrangement provide a spring biasing to the chain to frictionally engage the perimeter of the support frame under normal operating conditions, but which permits loosening of the chain to manually rotate the receiving platform and support frame if there is a power outage or equipment malfunction.
Patent CA-2052765-A1 (CA)
Title: Vent tube assembly
Inventor: DANNA ANTHONY J JR
IPC: B60K15/035
Filed: 1991-10-04
Abstract: Abstract A vent tube assembly (10) for use with a supply of fuel adapted for delivering fuel to a fuel tank (12) mounted in a vehicle (14), which enables an operator to fill the fuel tank (12) with a reasonably predictable quantity of fuel to its nominal capacity.          The fuel tank (12) is provided with a filler neck (20) into which may extend a pressure-sensitive filler nozzle (22) in fluid communication with the supply, the filler nozzle (22) being adapted for terminating delivery of fuel into the fuel tank (12) when the vapor pressure therein exceeds a shut-off pressure.          The vent tube assembly (10) comprises an inner vent tube (24) having at least one inner venting port (26) defined therein.  The inner vent tube (24) extends downwardly through an upper portion of the fuel tank (12) for relieving vapor pressure in the fuel tank as the volume of fuel contained therein increases during replenishment from the supply until the fuel in the fuel tank rises to a fuel shut-off level (30).  An outer vent tube (32) lies in telescoping relationship with the inner vent tube (24) and has a base (34) which is received by the lower portion of the fuel tank.  The outer vent tube (32) is provided with at least one outer venting port (36) defined therein.  A spring urges the outer vent tube (32) toward an ex-tended position so that the outer vent tube (32) is loaded against the lower portion of the fuel tank (12).  The outer vent tube (32) is adapted to move in cooperation with the lower portion of the fuel tank (12).  The vent tube assembly (10) provides a fuel shut-off level (30) which is determined at a fixed distance above the lower portion of the fuel tank, regardless of dimensional changes therein and vehicle attitude.
Patent CA-2053706-A1 (CA)
Inventor: SUGIMOTO MAKOTO
IPC: C04B35/584
Filed: 1991-10-21
Abstract: In a sintered ceramic body used for a spark plug insulator, the ceramic body has silicon nitride (Si3N4), aluminum nitride (AlN) and alumina (Al2O3). Reduced weight percentage of the silicon nitride (Si3N4), aluminum nitride (AlN) and alumina (Al2O3) in the sintered ceramic body falls within an area surrounded by points A (91.5, 1.5, 7.0), B (91.5, 2.5, 6.0), C (91.5, 3.5, 5.0), F (83.0, 7.0, 10.0), J (66.0, 14.0, 20.0), O          (50.0, 20.5, 29.0), T (41.0, 24.0, 35.0), S (41.0, 17.0, 42.0), R (41.0, 10.0, 49.0), M (50.0, 8.5, 41.5), H         (66.0, 6.0, 28.0), D (83.0, 3.0, 14.0) and A (91.5, 1.5, 7.0) at a three-component diagram. As one sintering additive, yttrium oxide (Y2O3) is selected, weight percentage of the sintering additive ranges from 0.3 % to 15.0 % of the total weight of the silicon nitride (Si3N4), aluminum nitride (AlN) and alumina (Al2O3).
Patent CA-2055077-A1 (CA)
Title: Time delay perforating apparatus
Inventor: GEORGE KEVIN R
IPC: E21B43/1185
Filed: 1991-11-06
Abstract: Abstract Of The Disclosure A time delay perforating apparatus and method of use.          The apparatus includes at least one first and second gun with a time delay device positioned therebetween.  The time delay device delays firing of the second gun for a predeter-mined period after firing of the first gun and prevents fluid communication between the first and second guns.  The time delay device is positioned in a housing interconnecting the first and second guns and closes off a central opening through the housing.  The time delay device includes a body with a primer assembly, a firing pin for detonating the primer assembly, an ignition mix ignited by detonation of the primer assembly, a time delay mix triggered by ignition of the ignition mix, and an explosive disposed in the body.          The firing pin is oriented such that it closes off a central opening through the body.  The explosive includes a primary explosive triggered by the time delay mix and a secondary explosive triggered by the primary explosive.  The time delay device directs its explosive output to fire the second gun.
Patent CA-2055289-A1 (CA)
Title: Metering device for dispensing a bulk material
Inventor: ROHR MARCEL
IPC: B65G65/40
Filed: 1991-11-12
Abstract: ABSTRACT OF THE DISCLOSURE        A metering device for/dispensing a bulk material includes a removable unit with a bulk material container and a dispensing device, a drive for driving the dispens-ing device, a balance, and an electronic control device, where the drive, the balance and the electronic control device are not separated from the metering device upon removal of the removable unit.   The electronic control device maintains an adjustable delivery rate,  constant over a period of time, whereby the removal rate of con-tents of the container is measured by the balance located in a base housing and supplied to the electronic control circuit.  The removable unit is replaceable with another similarly constructed removable bulk material container and dispensing device, if desired, to obviate the cost of cleaning the removable unit between uses with different bulk materials.
Patent CA-2056709-A1 (CA)
Title: Rf mass spectrometer
Inventor: LOGAN CHARLES H
IPC: H01J49/36
Filed: 1991-11-29
Abstract: Abstract of the Disclosure A mass spectrometer includes an ion source for ionizing a sample substance to provide an ion current of predetermined beam width and energy. A mass filter includes a plurality of drift tubes wherein succeeding drift tubes are of increasing length separated by gaps that increase in length. The ion current is supplied to the mass filter along with an alternating current electrical signal in a manner so that particles having a predetermined mass receive a predetermined maximum energy increase while traversing the mass filter and so that particles not having the predetermined mass do not receive the maximum energy increase. A detector is provided to create an energy barrier whereby only particles that receive the maximum energy increase will have sufficient to completely traverse the barrier. Particles which traverse the barrier are detected thereby to determine the amount of particles having a predetermined mass that were contained in the sample substance.
Patent CA-2057285-A1 (CA)
Title: Aerosol dispenser
Inventor: MALLOCH BRUCE E
IPC: B67D7/08
Filed: 1991-12-09
Abstract: ABSTRACT OF DISCLOSURE             An aerosol dispenser comprises a housing within which an aerosol  container  can  be removably  located.    A dispensing nozzle arrangement is provided through which aerosol contained in the container can be dispensed.  A valve means  provides communication between an outlet of the aerosol container and the spray nozzle arrangement. Electronic control means activate the valve means so as to   facilitate   a metered dosage of  aerosol to  be dispensed from said spray nozzle arrangement.   In the preferred  arrangement  the valve means includes  a solenoid for operation of the valve means.
Patent CA-2058008-A1 (CA)
Title: Jumper switch means and method
Inventor: BORRIONE PIERLUIGI A V
IPC: C25B9/04
Filed: 1991-12-18
Abstract: NOVEL JUMPER SWITCH MEANS AND METHOD               ABSTRACT OF THE DISCLOSURE     An  electric jumper switch means for electric current bypass of at least one electrolyzer consisting of individ-ual  electrolysis  cells,  out of a plurality of monopolar electrolyzers  connected  in series to an electrical power source  characterized  in  that  said  jumper switch means comprises  a  multiplicity  of extension arms suitable for connection  to the anodic contact point of each individual cell  of the electrolyzer preceding the electrolyzer to be bypassed and a multiplicity of extension arms suitable for connection to the cathodic contact point of each individu-al  cell  of  the  electrolyzer  immediately following the electrolyzer  to  be  bypassed,  Said  jumper switch means comprises  a resistor means to provide a uniform reduction of  the current  flow  in  the  individual  cells  of the electrolyzer  to be bypassed without a shift of electrical current in the adjacent cells of the electrolyzers immed-ately preceding and following  the  electrolyzer to be bypassed  and a method of shutting down an electrolyzer in a series of electrolyzers.
Patent CA-2058027-A1 (CA)
Title: Digital electronic system for halftone printing
Inventor: CARDILLO LOUIS A
IPC: H04N1/46
Filed: 1991-12-18
Abstract: TITLE     DIGITAL ELECTRONIC SYSTEM FOR HALFTONE PRINTING           ABSTRACT OF THE DISCLOSURE    A system for producing an image by halftone printing comprises generating halftone dots from electronic data by scanning across across a raster of write spots in a recording medium, spot-by-spot and line-by-line.  Each dot is defined within a repetitive dot template containing a plurality of write spots.  The system writes at selective write spots by sending a present write-spot address signal obtained from a write-spot address register to a spot-status Look-Up-Table for selecting a predetermined value for each write spot, the predetermined value determining an on-off status for the present write spot.  The spot-status Look-Up-Table has a plurality of predetermined values corresponding, respectively, to addresses of write spots within the dot template.  In the present invention, the selective writing step is performed by sending the write-spot address signal also to a pointer Look-Up Table for generating an address pointer signal uniquely associated with a particular write-spot address code, and transmitting the address pointer signal to the write-spot address register in order to obtain the next write-spot address signal.
Patent CA-2061992-A1 (CA)
Inventor: PATTERI MATTI
IPC: H05F3/02
Filed: 1992-02-27
Abstract: A plastic storage and transportation container for loose cartridges, in which container static electricity arising inside the container may be conducted outside the container by a conductive fiber material disposed on the inner surface.  The shell of the container is a thermoplastic tube structure.  The conductive fiber material is preferably carbon fibers fixed to the inner surface of the tube structure in connection with its preparation.  The cover and/or the bottom portion of the container is formed by a plug part made of a conductive plastic.
Patent CA-2064400-A1 (CA)
Title: Automatic refuse container loading device
Inventor: ARMANDO VALERIO
IPC: B65F3/02
Filed: 1992-03-30
Abstract: Automatic refuse container loading device ABSTRACT      An automatic container loading device connected to an appropriate truck comprising a first telescopic arm connected to the chassis to the truck and able to rotate, both on a horizontal and on a vertical plane, a second telescopic arm centrally connected to the free end of the said first arm and able to make a complete rotation on its vertical axis and comprising a third and a fourth arms, also able to make a complete rotation, supporting  a means for gripping containers of all shapes and sizes from any position whatsoever, even at a considerable distance from the truck and on a different levels, placing them automatically in the right position for being lifted and emtied into the body of the truck.
Patent CA-2065646-A1 (CA)
Title: Nox reduction and control using hydrogen peroxide in the absorber column
Inventor: GUBANC DAVID M
IPC: B01D53/56
Filed: 1992-04-09
Abstract: ABSTRACT OF THE DISCLOSURE       A method for reducing NOx emissions through the selective addition of hydrogen peroxide in the aqueous liquor of an absorber column, wherein periods of addition are determined by increases in temperature of the aqueous liquor.
Patent CA-2067667-A1 (CA)
Inventor: RAPOZA EDWARD J
IPC: H01R13/74
Filed: 1992-04-30
Abstract: Electrical connectors are provided for enabling electrical access through a side wall of a microelectronic, sensor, or fiber optic package housing while maintaining hermeticity. These connectors include a connector body having an aperture therethrough and a coefficient of thermal expansion which is different than that of the housing. The connectors include a connector pin disposed through the aperture of the connector body and hermetically sealed to the connector body with an insulating composition or a ceramic insert bonded to the connector pins. Flange means are also provided for joining the hermetic electrical connector to the microelectronic package housing. The flange means includes upper and lower flanges metallurgically bonded together and comprising first and second metallic compositions respectively. The first composition is hermetically bonded to the connector body with a fusion weld having a heat-affected-zone which does not significantly affect the hermetic seals around the connector pins. The second metallic composition is readily weldable to the microelectronic package housing to provide the final hermetic coupling.
Patent CA-2073089-A1 (CA)
Inventor: HAMADA TETSUROU
IPC: F16D43/284
Filed: 1992-07-03
Abstract: A power transmitting system of a four-wheel drive vehicle having primary driven wheels driven directly by a prime mover, and subsidiary driven wheels driven through a hydraulic clutch.  The power transmitting system comprises a first hydraulic pump driven in operative association with the pri-mary driven wheels and a second hydraulic pump driven in operative association with the subsidiary driven wheels.  Each hydraulic pump has a pair of ports which serve as an intake and a discharge with the functions of such ports being reversed between forward and backward movement of the vehicle.          A first oil passage connects the intake port of one pump with the discharge of the other pump and a second oil passage con-nects the discharge of the one pump with the intake of the other pump.  Third and fourth oil passages connect the first and second oil passages, respectively, with a working hydrau-lic pressure chamber in the hydraulic clutch.  A one-way valve is provided in each of the third and fourth oil passages for permitting only a flow of oil toward the working hydraulic pressure chamber.  The reversal of vehicle movement and direction of oil discharged from each of the hydraulic pumps provided in the power transmitting system of the four-wheel drive vehicle is compensated for by a simple structure of oil passages and one-way valves.
Patent CA-2074383-A1 (CA)
Inventor: KAWAMOTO MASAO
IPC: D01F1/10
Filed: 1992-07-22
Abstract: A composite fiber having a single filament fineness of not more than 8 deniers and comprising: a hydrogenation product of a block copolymer comprising poly(vinylaromatic)   blocks    and  poly(conjugated  diene) blocks and containing a specific phenol-based compound and a large amount of an inorganic fine powder and a fiber-forming polymer; this composite fiber has, in spite of a large content of the inorganic fine powder and its   small   fineness,   excellent  spinnability  upon  its production and excellent processability after spinning, as well as excellent fiber properties.
Patent CA-2075136-A1 (CA)
Title: Differential bearing cap fastener
Inventor: KREINBRING DONALD E
IPC: B60K17/16
Filed: 1992-07-31
Abstract: ABSTRACT OF THE DISCLOSURE     An improved fastener (100) is provided for securing inboard axle shaft bearings (32) to pedestals (14, 14') of a differential carrier (8) on opposite sides of differential gearing (16) of a motor vehicle.  Fastener (100) includes a threaded section (22) at one end and an enlarged head section (H) at an opposite end that has been adapted such as by including a flange (24) operative to engage a surface of a surrounding axle housing (4) while securing bearing caps (15, 15') respectively to pedestals (14, 14') so as to inhibit deflection of the pedestals and bearing caps during operation of the differential.