baber/WOPTO huggingface dataset:
Patent CA-1267960-C (CA)
Title: Multiple access communication system having loop- check circuitry for switching intraoffice connections
Inventor: FUJIWARA RYUHEI
IPC: H04M7/00
Filed: 1987-04-03
Granted: 1990-04-17
Abstract: NE-97 (011A/4) 71024-64 ABSTRACT OF THE DISCLOSURE A multiple access communication system comprises a central station connected to an end office switching system and a remote station which serves N subscriber telephones through respective line interface circuits. The remote station provides concentration by switching N subscriber interface circuits to M (where M is smaller than N) trunk circuits which are connected through transmission facilities to M trunk circuits of the central station. The central station provides deconcentration by switching its M trunk circuits to end-office N subscriber line interface circuits. In response to a called subscriber line interface circuit answering an intraoffice call, a long distance loop connection is established throughout the system by way of the end office between remote station subscribers for charging purposes and the remote station identifies the terminal location of the called circuit. Each remote-station line circuit includes a tone detector. A loop check circuit applies a tone signal to the long distance connection from the identified location of the called circuit to allow it to be detected by the detector of the calling line circuit. In response to detection of the tone signal, the remote station identifies the terminal location of the calling line circuit and establishes a local connection between the identifed terminal locations and clears the long distance connection.
Patent CA-1324138-C (CA)
Inventor: ROSSEY GUY
IPC: C07D471/04
Filed: 1987-06-26
Granted: 1993-11-09
Abstract: Abstract A process for the preparation of an imidazopyridine which is a compound of formula (I)              (I) in which:          Y denotes hydrogen, a halogen or a C1-4 alkyl group;          X1 and X2 denote, independently of each other, hydrogen, a halogen or a C1-4 alkoxy, C1-6 alkyl, CF3, CH3S, CH3SO2 or NO2 group; and R1 and R2 denote, independently of each other, hydrogen or a C1-5 alkyl group, with the proviso that R1 and R2 do not both denote hydrogen, or a salt thereof; which process comprises reacting a compound of formula (V)          (v) wherein Y, X1, X2, R1 and R2 are as defined above, with a reducing agent and if desired converting the resulting compound of formula (I) into a salt, together with intermediates of formulae:       (III) (IV)              (V)
Patent CA-1287039-C (CA)
Inventor: OREN DAVID D
IPC: B60P1/28
Filed: 1987-07-02
Granted: 1991-07-30
Abstract: Abstract of the Disclosure A front end loading enclosed semi trailer (20) and method of loading an enclosed semi trailer.  A hitch (24) is present proximate a front end (34) for intercon nection to a tractor (22).  A wheel assembly (28) sup-ports a back end (26) of the semi trailer (20). Extensible jack devices (40) are mounted proximate the first end (34) for raising and lowering the first end (34) of the semi trailer (20).  Doors (36) are present at the front end (34) for allowing entrance into the semi trailer (20) whereby when lowered, the semi trailer (20) can be loaded from the front end (34).
Patent CA-1280091-C (CA)
Title: Self-contained air freshener and cartridge therefor
Inventor: STEINER ROBERT L
IPC: A61L9/12
Filed: 1987-07-22
Granted: 1991-02-12
Abstract: ABSTRACT OF THE DISCLOSURE A self-contained battery-powered room deodorizer including a housing having an inlet portion through which ambient air is drawn into the housing by means of a battery powered fan. The air is passed about a quantity of vaporizable material contained within the housing, and then discharged therefrom into the ambient air carrying the vaporized portion of the product therewith. A replaceable deodorizing material containing cartridge is positionable within the housing, and provides a support well for supporting a replaceable battery, such that the deodorizing material and battery may be separately replaced when either of these items has become expended.
Patent CA-1301604-C (CA)
Inventor: PHILLIPS ROGER
IPC: G01N21/47
Filed: 1987-08-12
Granted: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE A method for determining the presence of an analyte in a fluid is described along with various components of an apparatus specifically designed to carry out the method.  The method involves taking a reflectance reading from one surface of an inert porous matrix impregnated with a reagent that will interact with the analyte to produce a light-absorbing reaction product when the fluid being analyzed is applied to another surface and migrates through the matrix to the surface being read.  Reflectance measurements are made at two separate wavelengths in order to eliminate interferences, and a timing circuit is triggered by an initial decrease in reflectance by the wetting of the surface whose reflectance is being measured by the fluid which passes through the Inert matrix.  The method and apparatus are particularly suitable for the measurement of glucose levels in blood without requiring separation of red blood cells from serum or plasma.
Patent CA-1284340-C (CA)
Title: Removable connection assembly
Inventor: VERMILLION DON W
IPC: F16L37/252
Filed: 1987-09-10
Granted: 1991-05-21
Abstract: TITLE:  REMOVABLE CONNECTION ASSEMBLY                        ABSTRACT A connection assembly is particularly useful for positively connecting a flexible hose member with an inlet plug for a suction source while being adapted for subsequent disconnection without requiring any specialized tools.  In connecting operation, an integral extension portion of a flexible hose member is telescopically inserted into an inlet plug to a predetermined longitudinal stopping point therein, and then rotated so as to cause engagement of projections formed on the extension portion and projection-receiving holes formed in the inlet plug.  Such engagement rotatably and longitudinally secures the flexible hose relative the inlet plug.  Slots are formed in the inlet plug for guiding the hose member projections during longitudinal movement of the hose member.  The hose member may be selectively withdrawn by reverse rotation of the hose extension portion and longitudinal removal thereof from the inlet plug. During such reverse rotational movement, a camming surface is used to assist withdrawal of projections from their respective holes for disengaging same without requiring special tools.
Patent CA-1290912-C (CA)
Title: Shelter and shelter construction method
Inventor: WITTEN DONALD W
IPC: E04H9/10
Filed: 1987-09-10
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE A shelter and method of constructing a shelter. The shelter comprises a unitary first shell and a unitary second shell. The first shell is formed by making at least two transverse bends in a single generally rectangular panel andprovides a unitary top wall, bottom wall, and first end wall. The second shell is formed by making at least two transverse bends in a single, generally rectangular panel and provides a unitary second end wall, first side wall, and second side wall. The first and second shells are complementarily positioned to create the shelter. A first metallic member is bonded along the peripheral edge of the first shell and a second metallic member is bonded along the peripheral edge of the second shell means. The first and second metallic members adjoiningly facilitate welding the complementarily positioned first and second shells together. A sealable entryway is provided in at least one of the walls. Wheel wells may be provided for allowing the shelter to be transportably attached to a transport vehicle. The shelter construction will attenuate the passage of electromagnetic waves into the shelter.
Patent CA-1292053-C (CA)
Inventor: SAKURAI YOSHITO
IPC: H04Q11/06
Filed: 1987-09-14
Granted: 1991-11-12
Abstract: ABSTRACT OF THE DISCLOSURE          A switching system for integratedly switching voice, data, image information and the like.  The switching system comprises a plurality of front-end modules each adapted to perform a switching processing in association with a subscriber line or a trunk line, and a single or a plurality of central modules for interconnecting the plurality of front-end modules in star-type fashion and switching information prevailing between the front-end modules, in unit of block accommo-dating the information and a header added thereto to contain connection control information and in accordance with the contents of the header.  The front-end modules are connected to the central module via inter-module highways each having frames occurring at a predetrmined period and time slots contained in each frame to carry blocks.
Patent CA-1317712-C (CA)
Title: Method of producing porous material having open pores
Inventor: KISHIMA NOBORU
IPC: C08G59/60
Filed: 1987-09-15
Granted: 1993-05-18
Abstract: ABSTRACT OF THE DISCLOSURE       A method of producing a porous material having open pores comprises the steps of preparing an emulsion slurry by vigorously agitating a mixture comprising (i) a glycidyl type epoxy  resin, (ii)  a first hardener  selected from the group consisting of modified polyamine hardeners each being prepared by  modifying  a  polyamine  hardener  with  a  modifier,  amine hardeners  and  mixtures  thereof,  (iii)  a  second  hardener selected  from the  group consisting  of  polyamide  hardeners, (iv) a filler and (v) water, casting said slurry in a water-impermeable mold, and hardening said slurry while it contains water.    A  large  size  molded  product  having  a  complicated contour  and  having  open  pores  whose  average  pore  diameter ranges  from  0.2  to  10  microns  can  be  produced  with  high dimensional accuracy.
Patent CA-1289993-C (CA)
Title: Protective device for window panes
Inventor: BROCKHAUS ERNST
IPC: B60J1/18
Filed: 1987-09-21
Granted: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE      A protective device for window panes which are susceptible to scratching, particularly the window panes in folding convertible tops of vehicles.  The pane is at its circumference welded into an envelope of covering material which forms a window frame.  The covering material is sewed together with the window pane.  During the manufacture and assembly of the convertible top, the window pane is provided with the cover of a material which is mechanically weak but soft and neutral relative to the pane material and of a foil having a high mechanical strength.  The protective cover is sewed together with the window pane and the envelope of covering material.  For an easy removal of the edge regions, the protective cover is provided with tooth-like or interrupted edge portions.
Patent CA-1292161-C (CA)
Inventor: EVERETT FREDERICK A JR
IPC: A61M1/00
Filed: 1987-10-05
Granted: 1991-11-19
Abstract: ABSTRACT OF THE DISCLOSURE            An apparatus for draining fluids, for example, from a chest or pleural cavity, includes a collection chamber for collecting fluids through an inlet port for entry of the fluids. Also included is a dry or waterless suction control chamber in fluid communication with the collection chamber for regulating the degree of vacuum imposed in the collection chamber. If desired, a seal chamber can also be provided between the dry suction control chamber and the collection chamber so as to prevent any ambient or atmospheric air from passing into the collection chamber. The suction control chamber has a first inlet which is coupled to a suction source and a second inlet communicates with the ambient. A waterless regulator is provided for regulating the degree of suction imposed in the collection chamber at a plurality of predetermined preset levels of suction. This regulator is positioned between the suction inlet and the ambient inlet. The suction control chamber also has at least a visual indicator disposed between the regulator and the suction inlet for providing immediate confirmation of proper operation of suction in the collection chamber.              The present invention also includes a device for retaining tubing under compression 80 as to provide self-sealing capability of the tubing during sampling or injection procedures.
Patent CA-1280334-C (CA)
Title: Respirator
Inventor: WHITE WILLIAM C
IPC: A62B18/02
Filed: 1987-10-15
Granted: 1991-02-19
Abstract: 30,367 RESPIRATOR ABSTRACT OF THE DISCLOSURE A face mask for a respirator is equipped with multiple seals on a lip which turns inward at the periphery of the face mask. The seals include at least one fin which extends from the surface of the lip for contact with the face.  The respirator has a port for exhalation valve near the nose of the wearer and has pleats for expansion of the mask between the exhalation port and the chin. Inhalation ports are located at the sides of the respirator near the cheeks.
Patent CA-1318380-C (CA)
Inventor: BELL STEPHEN W
IPC: H01Q15/18
Filed: 1988-02-29
Granted: 1993-05-25
Abstract: Military Aircraft ABSTRACT OF THE DISCLOSURE      An  aircraft  (1)  includes  a  radar reflector  (2) arranged so that the radar signature of the combination of aircraft (1) and reflector (2) is different from that of the aircraft  (1)  alone.   This confuses enemy radar either by removing or folding flat the reflector (2) when on a combat mission so that the aircraft (1) on its own has   a   surprisingly   low  radar   cross-section;   or, alternatively   by   making   radar   signature   of   the combination  correspond  to  that  of  an  aircraft  of  a potential enemy.
Patent CA-1310278-C (CA)
Inventor: BAIKER WALTER
IPC: F16H57/04
Filed: 1988-03-31
Granted: 1992-11-17
Abstract: A B S T R A C T      Process for lubricating vehicle gears, characterized in that the lubricating oil is injected by means of a plurality of injection elements (43) directly to the areas to be lubricated and the used oil is supplied again by means of a closed circuit (35, 37, 40, 43, 45, 47, 49), in which it is defoamed and reclaimed, to the said injection elements.
Patent CA-1330488-C (CA)
Inventor: ROGERS EDWARD S
IPC: C10L9/10
Filed: 1988-04-27
Granted: 1994-07-05
Abstract: ABSTRACT A method of controlling self-ignition of low rank coal in dried particulate form in which there is applied to the coal in aqueous solution a water-soluble permanganate salt and a phosphorus compound consisting of phosphoric and polyphosphoric acids and their water-soluble salts.
Patent CA-1310568-C (CA)
Inventor: BALL WALTER K
IPC: B29C65/02
Filed: 1988-06-17
Granted: 1992-11-24
Abstract: ABSTRACT    A method of and apparatus for dynamically mechanically bonding together a plurality of laminae, at least one of which comprises thermoplastic material: for example, polyethylene. In one aspect of the invention the laminae are forwarded in face to face relation through a pressure biased nip between a patterned nip defining member and an opposing nip defining member (eg, a relief patterned cylinder and an anvil cylinder) which members are independently driven to maintain a predetermined surface velocity differential between them. In another aspect of the invention which is particularly useful at intermediate and higher line velocities --preferably for line velocities of about 300 feet or more per minute and, more preferably, for line speeds of about 450 feed or more per minute -- the nip defining members may be operated with equal surface velocities. In each of these aspects of the invention, the members may be biased towards each other to provide a predetermined pattern-element-psi loading; and, additionally, they may be independently heated to provide each with an elevated surface temperature which is, preferably, in a predetermined range below the melt temperature of the thermoplastic laminae disposed closest to or in contact with each respective nip defining member as the laminae are forwarded through the nip.
Patent CA-1308191-C (CA)
Title: Disk reproduction apparatus and method for high speed accessing of desired information data by checking address data
Inventor: YOSHIDA TAKUJI
IPC: G11B27/11
Filed: 1988-08-03
Granted: 1992-09-29
Abstract: ABSTRACT OF THE DISCLOSURE      When receiving address data of a target position from a host computer, a control unit reads the present address data of a pick-up using a subcode Q detector or a header detector. The control unit computes a difference between the present address data as read out and the address data of the preceding frame (one block) already read out and stored in RAM.  The control unit then checks if the difference is within a preset value.  If it is, the control unit decides that the present address data is correct, and uses it in the data access operation.  If it is not, the control unit computes a difference between the address data at the target position as specified by the host computer and the present address.  The control unit then checks if the difference is within a preset value.  If it is, the present address data is correct it is used, in the data access operation.
Patent CA-1297455-C (CA)
Title: Slide dispenser for a reagent cannister
Inventor: HEILAND ROBERT
IPC: B65G1/07
Filed: 1988-08-26
Granted: 1992-03-17
Abstract: SLIDE DISPENSER FOR A REAGENT CANISTER            Abstract of the Disclosure A two-piece slide dispenser includes a housing defining an internal compartment for the storage of a plurality of reagent slides or similar items. The housing includes a dispensing opening and a loading opening.  A finger or similar structure at least partially obstructs the dispensing opening to prevent inadvertent falling out of the reagent slides.  A one-piece, multiple function, resilient spring boot including a biasing portion and a light and humidity sealing portion is also provided.  once reagent slides are loaded through the loading opening into the internal compartment, the spring boot is mounted in the compartment to engage the slides biasing them toward the dispensing opening. The biasing portion of the spring boot can be hemispherical or of a similar configuration allowing this portion to fold into itself.  The biasing portion also includes an extension extending from the hemisphere to engage the slides.  The sealing portion of the spring boot includes a lip or edge that can be secured on the housing around the loading opening.  In an alternative embodiment, the lip or edge of the spring boot engages the inner peripherial surface of the housing adjacent the loading opening and the loading opening is closed by a cap.
Patent CA-1318106-C (CA)
Title: Evaporable foam casting system utilizing a hypereutectic alumium silicon alloy
Inventor: HESTERBERG WILLIAM G
IPC: B22C9/04
Filed: 1988-08-31
Granted: 1993-05-25
Abstract: Abstract of the Disclosure A method of casting utilizing an evaporable foam system with a hypereutectic aluminum silicon alloy.  The alloy is composed by weight of 16% to 19% silicon, 0.4% to 0.7% magnesium, up to 1.4% iron, up to 0.3% manganese, up to 0.37% copper and the balance aluminum.  The molten alloy is introduced into a mold in contact with an evaporable foam pattern formed of polystyrene, or the like.  The heat of the molten alloy will decompose and vaporize the pattern and the vapor will enter the interstices of the surrounding sand, while the molten alloy will fill the void caused by the vaporization of the pattern.  The heat of crystallization caused by precipitation of the silicon on solidification of the allow will temporarily slow the solidification rate of the alloy, thus increasing the time for elimination of pattern residue vapors from the molten alloy.
Patent CA-1309188-C (CA)
Title: Electronic labeler with printhead and web sensor combined for concurrent travel, and assemblies of identification devices therefor
Inventor: HOYT STEVEN D
IPC: B41J29/50
Filed: 1988-09-02
Granted: 1992-10-20
Abstract: ABSTRACT       An electronic labeling apparatus (1) is disclosed which includes a printing mechanism (18) with a printhead (70) adapted for horizontal travel across an assembly (5,91,96) of identification devices to be imprinted.  A web edge sensor (85) is attached to the printhead (70) for concurrent travel therewith.  In traversing horizontally across the assembly (5,91,96) the web edge sensor (85) provides a signal to a microprocessor (100) which indicates the presence or absence of the assembly (5,91,96) under the current position of the sensor (85).  The microprocessor (100) also receives a timing signal from the printing mechanism (18) indicative of the position of the printhead (70).  Based on the timing signal and the signal from the web edge sensor (85), the microprocessor (100) measures a current width of the assembly (5,91,96).  The assembly (5,91,96) is especially adapted for use with the invention, and includes notches (90) having a width different than the nominal width of the assembly (5,91,96), each notch (90) being in a fixed relative position with respect to one of the identification devices (6,95,97).  The microprocessor (100) is thereby able to control feeding of the assembly (5,91,96) to register the identification devices (6,95,97) for printing by discriminating the current measured width of the assembly (5,91,96) between the nominal width and the width at a notch (90).
Patent CA-1306179-C (CA)
Title: Head for sealless strapping machine
Inventor: PEARSON TIMOTHY B
IPC: B65B13/30
Filed: 1988-09-28
Granted: 1992-08-11
Abstract: HEAD FOR SEALLESS  STRAPPING MACHINE                      ABSTRACT In a strapping head, slitting dies on a pair of pivotally mounted sealing jaws and a longitudinally movable punch on a punch holder cooperate and are adapted to make a sealless connection in two overlapped layers of a tensioned loop of steel strap.  A longitudinally movable sealing yoke pivots the sealing jaws by means of cams on the sealing yoke and cam followers on the sealing jaws and moves the punch holder via a connection allowing lost motion between the sealing yoke and the punch holder.  A pair of pivotally mounted notching jaws and a pair of notching cutters on a longitudinally movable notching cutter holder cooperate and are adapted to cut notches in opposite edges of the overlapped layers after the sealless connection has been made.  A longitudinally movable notching yoke pivots the notching jaws by means of links and moves the cutter holder via a connection allowing lost motion between the notching yoke and the cutter holder.  The sealing and notching yokes are arranged such that the sealing yoke moves the notching yoke for certain purposes.  Strap-cutting means are provided, which are adapted to cut the tensioned loop from the remaining strap.
Patent CA-1303713-C (CA)
Title: Emi/rfi shield for visual display terminals
Inventor: KUHLMAN BRUCE E
IPC: H01J29/86
Filed: 1988-10-21
Granted: 1992-06-16
Abstract: Abstract of the Disclosure A multilayer composite EMI/RFI filter for use in front of visual displays is disclosed to be constructed of a shaped or shapable plastic substrate having an outer diffuse hardcoat and one or more conductor transmissive layers of metal.  Preferably the metal is presented as a sputter-deposited dielectric-metal-dielectric stack.
Patent CA-1289163-C (CA)
Title: Pivoting faucet nozzle
Inventor: WATSON J CHARLES
IPC: F16L27/08
Filed: 1988-11-28
Granted: 1991-09-17
Abstract: ABSTRACT         Disclosed is a pivoting faucet nozzle assembly comprising a body member having a first circular passageway adapted to receive an end portion of an inlet tube and a second passageway comprising an outlet communicating with the first opening.  The second passageway has a shoulder disposed a predetermined distance from a central axis of the first passageway.  The end of the tube has a longitudinally extending tab which engages with the shoulder upon pivoting of the body member to either of two angular limits, e.g. 45°, from a central position in which the tab is substantially centered in the second passageway.  The nozzle can be pivoted enough to rinse the walls of a sink but not enough to spray water on the counter top in which the sink is mounted.