baber/WOPTO huggingface dataset:
Patent CA-2105777-A1 (CA)
Title: Film construction for use in a plain paper copier
Inventor: CARLS JOSEPH C
IPC: G03G5/02
Filed: 1992-02-11
Abstract: An electrographic article comprising a polymeric film having at least one polymeric receptor layer coated on at least one side thereof, said receptor layer having an equivalent or lower storage elasticity modulus than a toner resin used for forming im-ages on said article.
Patent CA-2107917-A1 (CA)
Title: Underwater servicing device
Inventor: EATHORNE RUSSELL J
IPC: B63B59/10
Filed: 1992-04-10
Abstract: An underwater servicing device comprising a substantially hollow housing (30) having an open face (32) whereby the configuration of the open face (32) substantially conforms to the surface of an article to which the housing (30) is to be mounted.  Sealing means (34) is provided about the peripheral edge of the open face (32), as is pumping means (42) in fluid communication with the interior of the housing (30) that is capable of evacuating fluid from therewithin and removing such evacuated fluid externally of the device. Moving means for moving the device from one location on the article to another is also provided, said moving means being capable of raising the device away from the article. An adjustable air supply means is provided that is capable of allowing air to enter the interior of the housing (30). As water is evacuated from the interior of the housing (30) and air enters, the positive pressure of water external to the housing (30) urges the device against the article such that the sealing means (34) contacts the article, the further and continuing evacuation of water resulting in a substantially water tight sealing engagement between the sealing means (34) and the article.
Patent CA-2111287-A1 (CA)
Title: Chelating resins and use thereof in selectively recovering valuable metals from acid mine drainage
Inventor: DARLING GRAHAM
IPC: C08F212/36
Filed: 1993-12-13
Abstract: Chelating resins for use in selectively binding heavy metals, having the structure (see formula I) where Ps represents a poly(divinylbenzene),  and R   represents an organic radical containing N but not O  that is bound to the S atom. The preparation of these chelating resins is also disclosed.     Suitable uses of the chelating resins of the invention include as components in a process for treatment of acid mine drainage (AMI) to selectively recover valuable metals and to obtain discharge water free of toxic metals.
Patent CA-2111438-A1 (CA)
Title: Bedpan
Inventor: CHURCH JUDITH A
IPC: A61G9/00
Filed: 1992-04-17
Abstract: A bedpan for use by bedridden patients which includes a shallow pan (10) appropriately shaped to fit under a patient's buttocks.  The top of the pan is partially covered with a flexible sheet (14) which holds the patient's weight and provides a significantly improved comfort as compared with the prior art hard surfaced top.
Patent CA-2112565-A1 (CA)
Title: Plastic closure for containers with tamper indicating element
Inventor: SPATZ GUENTER
IPC: B65D41/34
Filed: 1992-06-25
Abstract: A plastic cap for containers is proposed, which comprises a flat top (3), a casing (5) emanating from same, as well as a guarante a area in the form of as guarantee ring (9) provided in the edge zone (7) of the casing, which guarantee area is provided with at least one vertical incision (29) extending over the height of the guaran-tee area. The cap is characterized in that the vertical incision (29) is arranged in dependence as specific form characteristics, preferably in dependence on the arrangement of the holding webs (15) of the cap (1) and is cut into the wall (27) of the guarantee ring (9).
Patent CA-2113773-A1 (CA)
Title: Method of and apparatus for reducing iron fouling in groundwater treatment systems
Inventor: MAZEWSKI EUGENE E
IPC: C02F3/26
Filed: 1994-01-19
Abstract: ABSTRACT OF THE DISCLOSURE      Disclosed herein is a treatment facility comprising a fluid bed reactor including a reactor tank containing a bed of particles which function as a carrier for growth of biological material, the reactor tank having an inlet and an outlet, the reactor further including structure for conducting liquid to be treated, from the reactor tank inlet, upwardly through the bed of particles at a rate conducive to fluidization of the bed of particles; an equalization surge tank for housing liquid to be treated in the fluid bed reactor,  the equalization surge tank having an inlet,  and an outlet; conduit structure for supplying liquid from the outlet of the equalization surge tank to the inlet of the fluid bed reactor; and structure for supplying an oxidant into the equalization surge tank, in such a manner that stripping of volatile constituents is avoided, for oxidizing iron in the liquid in the equalization surge tank.
Patent CA-2114123-A1 (CA)
Title: Electronic scanner or printer with ordered fiber optic array
Inventor: FEDER PERETZ
IPC: H04N1/04
Filed: 1991-07-22
Abstract: An electronic scanner or printer using a fiber optic bundle and employing an initialization procedure is rendered more reliable, less expensive and provides a relatively easy path to gray scale and high resolution performance by using a unique fiber optic bundle. The bundle comprises ribbons of square fibers (18) where the ribbons are set side by side at one end of the bundle and stacked at the other. Each square fiber of each ribbon comprises multiple rows and columns of (core) fibers (16) each with a cladding to ensure total internal reflection of light. Gray scale is achieved by varying the exposure time and consequently the energy per pixel on a treated media or by statistically changing the amount of toner on an OPC drum creating limited apparent shades of black spots on a developed page.
Patent CA-2114270-A1 (CA)
Inventor: ACRI GORDON L
IPC: G10D3/00
Filed: 1994-01-26
Abstract: This is an attachment which is fitted on a finger for playing stringed instruments. In this invention the two bands which are wraped around the finger hold it on as it is used to strike the instrument. There are holes in the bands to help hold it on and lighten it. The invention is made from metals which can be custom bent to fit the different fingers. The third band which points forward perpedicular from the middle of the others is highly polished and is also shaped by the end user around the tip.
Patent CA-2114596-A1 (CA)
Inventor: SILCOTT EDWARD O
IPC: F28G1/16
Filed: 1994-01-31
Abstract: A retractable sootblower is provided with means for preheating the sootblower lance prior to introduction of blowing medium into the lance to prevent condensation of the blowing medium which would be subsequently discharged from the lance against internal boiler surfaces accelerating surface erosion. The sootblower of the present invention preheats the lance by only providing blowing medium to the lance after at least a portion of the lance has been extended into the boiler and heated by hot boiler gases to thereby prevent condensation of the blowing medium within a cooled lance.
Patent CA-2115254-A1 (CA)
Title: Multilayer film constructions
Inventor: KIM HEE-TECK
IPC: B32B27/36
Filed: 1992-08-07
Abstract: The present invention provides a multilayer film structure comprising at least one fluoropolymer film, at least one thermo-plastic polymer film, and at least one adhesive layer selected from the group consisting of alkyl ester copolymers of an olefin and an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, modified polyolefins comprising an olefin and a functional moiety selected from the group consisting of unsaturated polycarboxylic acids and acid anhydrides, and blends of the alkyl ester copolymers and the modified polyolefins, wherein the multilayer film exhibits high adhesion strength, and good moisture and gas barrier propert-ies.
Patent CA-2116152-A1 (CA)
Title: Reciprocating floor construction
Inventor: QUAECK MANFRED W
IPC: B65G25/04
Filed: 1994-02-22
Abstract: ABSTRACT      A reciprocating floor construction comprises a plurality of base sections, each of the base sections having a bottom with an interior, a central rib on the bottom interior, a pair sides substantially perpendicular to the bottom.  Each of the base section sides has a top comprising a bearing seat.  The reciprocating floor construction also includes a plurality of slats, each of the slats on one of the base sections and having a load bearing portion with an interior, a pair of exterior edges oriented substantially perpendicular to the load bearing portion, and a pair of sides also substantially perpendicular to the load bearing portion.  A central bearing is located on each of the base section central ribs.  Each central bearing has a top groove and a pair of legs.  The exterior edges of two of the slats fit the top groove of the central guide bearing, and the sides of the pair of slats are located adjacent the legs of the central bearing.  A side bearing is located in each of the base section bearing seats.  Each side bearing has a body and a pair of legs, each of the legs spaced from the bearing body by a groove such that the side bearing is fitted into the base section bearing seat by bending the bearing legs toward the bearing body.
Patent CA-2119984-A1 (CA)
Title: Concealed receiver hitch
Inventor: BRESLIN PATRICK W
IPC: B60D1/48
Filed: 1994-03-25
Abstract: Abstract A concealed receiver hitch includes a depending receiver tube having a lower end with a downward-facing opening at its lower end which is adapted to receive a drawbar, and a drawbar adapted to be received within the downward-facing opening in the receiver tube.
Patent CA-2120381-A1 (CA)
Title: Distributed multi-outlet paging
Inventor: VATT GREGORY B
IPC: H04M11/00
Filed: 1994-03-31
Abstract: A distribution network (108) receives simplex communications or pages from any number of user interface nodes (UINs) (202) and distributes the pages to one or more paging outlets provided by page termination nodes (PTNs) (110) and delivery systems (102). The UINs (202) perform the bulk of the processing related to the distributed system of the present invention. Originator services (1000) are provided through UINs (202). Through originator services (1000) callers may place pages or inquire about previously placed pages. In placing pages, page originators can specify options (1102-1104) related to the delivery of pages. Subscriber updating services (1100) are also provided through UINs (202). The updating services (1100) allow a subscriber to alter (802-812) the services provided by the distribution network (108). For example, the subscriber may change delivery addresses (402) which identify the delivery systems (102) through which pages are to be delivered.      Security procedures are implemented to insure that only authorized persons can alter the specification of services provided by the distribution network (108).
Patent CA-2120864-A1 (CA)
Title: Method and equipment for controlling display of image data according to random-scan system
Inventor: OMORI SHINJI
IPC: G09G1/08
Filed: 1994-04-08
Abstract: In an equipment for displaying image data created by a computer according to the random-scan system, until the created display data is read out and displayed, in the time of buffering a buffer memory for temporarily storing the display data, the data is divided into plural blocks based on the display coordinate information added to the display data and is stored.      When reading the data, the data is read out and displayed in sequence from more adjacent blocks to each other.
Patent CA-2124411-A1 (CA)
Title: Process and device for amplitude modulation of a radiofrequency signal
Inventor: LINGUET LAURENT
IPC: H04B1/04
Filed: 1994-05-26
Abstract: ABSTRACT     The process according to the invention consists in breaking down a radiofrequency signal to be modulated according  to  a  first  and  second  signal,  representing respectively the sum of the output voltages of identical amplitude of a  first and second determined number of modules,  with  which  respectively  a  first  and  second vector  are  associated  whose  respective  amplitude  and phase verify that the vectorial sum of the two vectors coincides with a determined reference  that is used as a phase  reference  of  the  two  vectors,  in  adapting  the phase  of  the  load  impedance  of  each  module  so  that vector associated with the current supplied by each of the amplifying modules is in phase delay in relation to their output voltages,  in modulating the phase  of the two signals  by the modulation signal and in adding the first  and  second  phase  modulated  signal  to  obtain  a resultant amplitude modulated signal.   Application:    Medium    wave    radio    broadcast transmitters.
Patent CA-2128399-A1 (CA)
Title: Method for safety evaluation of chemical compound using recombinant yeast expressing human cytochrome p450
Inventor: HAYASHI KOJI
IPC: C12Q1/02
Filed: 1994-07-19
Abstract: Abstract of the disclosure:            There is disclosed a method for evaluation of the safety of a chemical compound, which includes the steps of:          (a) reacting a chemical compound with recombinant yeast cells expressing, or in other words producing, human cytochrome P450 molecular species P450 1A2, P450 2C9, P450 2E1 and P450 3A4 together with a yeast NADPH-P450 reductase, which may be in the form of a fused enzyme with each of said human cytochrome P450 molecular species, or with the cell free extracts of the yeast cells; and (b) analyzing the resulting metabolite to determine the safety of the compound.   According to this method, it can be determined whether a test compound will be converted into a carcinogenic or mutagenic form through the metabolism in the human liver, and whether the test compound or its metabolite has mutagenicity.
Patent CA-2129167-A1 (CA)
Inventor: LANGLEY ROBERT W
IPC: A61M1/30
Filed: 1994-07-29
Abstract: A  single  needle  system  for withdrawing donated  blood, processing the blood to harvest components such as platelets, and returning processed blood to the donor through the single needle.          Processing is performed by a centrifuge which separates blood components into stratified layers with a buffy coat containing platelets and white blood cells stably interfacing a red blood cell layer. Blood is withdrawn during a draw cycle and returned to the donor during a return cycle.  A recirculation system is provided so that blood flows at a reduced rate through the processing system during the return cycle in order to minimize return cycle time while maintaining the stable position of the interface between buffy coat and red blood cell layers.   A storage bag receives processed blood during the draw cycle and blood is squeezed from the bag during the return cycle, a portion returned  to  the  donor  and  another  portion  entering  the recirculation path.  A pressure sensor is located in the return path to indicate an empty storage bag upon a precipitous drop in pressure.  In that manner an immediate switch to the draw cycle is made to further minimize return cycle time.  To still further minimize the return cycle time, flow resistance in the return path is minimized with more than 80% of the flow resistance in the return path associated with the needle.
Patent CA-2131331-A1 (CA)
IPC: A63B53/04
Filed: 1994-07-21
Abstract: ABSTRACT OF THE DISCLOSURE         A golf club head comprising a shell having toe and heel portions, a rear wall, a front wall defining a ball-striking face, and top and bottom walls, the bottom wall characterized as having a medial ridge,  and as forming two dished shallow recesses, one recess between the ridge and the heel portion, and the other recess between the ridge and the toe portion,  the recesses spaced rearwardly from the front wall, the one recess having an arcuate peripheral edge generally convex toward the heel portion, and the other recess having an arcuate peripheral edge generally convex toward the toe portion, the recesses being located in substantially mirror imaged positions with respect to a forwardly extending vertical plane bisecting the ridge, the head, when viewed toward the bottom wall, presents a peripheral outline which, at the toe and rear of the head, has substantial spacing from the other dished shallow recess.
Patent CA-2133121-A1 (CA)
Title: Printer and method
Inventor: HAMISCH PAUL H JR
IPC: B41J29/02
Filed: 1994-09-28
Abstract: There is disclosed a portable thermal printer having a printer housing, a printing mechanism and an ink ribbon cartridge containing an ink ribbon cartridge containing an ink ribbon. The cartridge has a cartridge housing and an improved brake for applying a slight braking force on a core of an ink ribbon supply roll in the housing. The cartridge is easy to load onto the printer. The cartridge forms part of the printer housing and is latched thereto. The cartridge is slid onto the printer and the cartridge housing detents into position.
Patent CA-2133408-A1 (CA)
Title: An air-change system for a multi-storey building
Inventor: PELTOLA HEIKKI
IPC: F24F13/26
Filed: 1992-04-01
Abstract: A ventilation system for a multi-storey building (1), which system comprises a ventilation apparatus (4) mounted on a roof and provided with fans (5) for generating an inlet air flow (B) and a distributing channel for supplying the inlet air flow to various intermediate levels (2) of the building. To avoid a separate distributing channel and to spare building space, a service shaft (3) of the building serves as an inlet air flow channel, which shaft forms a flow path for the inlet air flow directed from the fans (5) downwards, whereby the service shaft has deflecting means (11) for passing a part (D) of the air flow to each intermediate level of the building.
Patent CA-2137871-A1 (CA)
Inventor: HART JAMES E
IPC: F16L39/00
Filed: 1994-12-12
Abstract: A pipe bracket for use in a freight brake control valve on a railway freight vehicle.  A service portion and an emergency portion are mounted to a first pipe bracket side directed opposite to the first pipe bracket side.  Piping to a brake pipe, a brake cylinder, an emergency reservoir and an auxiliary reservoir are connected to a second side of the pipe bracket.  A plurality of passageways are provided through the pipe bracket portion for providing fluid communication from the brake pipe, the brake cylinder, the emergency reservoir, and the auxiliary reservoir to the service portion and the emergency portion.  One or more and preferably four access ports connect to one or more and preferably each of the passageways.          Preferably, the access ports are provided on the first side of the pipe bracket portion.  A housing having one or more channels, each corresponding to an access port is engaged to the pipe bracket portion so that fluid pressure at the access ports can be transmitted to the housing.  The housing has a valve means for containing a pressure within the channels.  A removable outer cover may be provided over the housing for sealing the channels.  Or, an adaptor may engage the housing, opening the valve means, for accessing the fluid pressures.
Patent CA-2138756-A1 (CA)
Title: Pyridine-2,3-dicarboximides, their preparation and their use for controlling undesired plant growth
Inventor: HAMPRECHT GERHARD
IPC: A01N43/40
Filed: 1994-12-21
Abstract: Pyridine-2,3-dicarboximides of the general formula I                      I     where R1 is hydrogen, alkoxy or unsubstituted or substituted alkyl (ex-cluding C1-C4-dialkylaminoalkyl if one of the radicals R2, R3 or R4 = NH2 or OH), cycloalkyl, alkenyl or alkynyl, at least one rad-ical R2, R3 or R4 is nitro, an OR5 or NR6R7 group, and the remain-ing radicals R2, R3 and R4 are identical or different and are hy-drogen, halogen, cyano, unsubstituted or substituted alkyl, ben-zyl, cycloalkyl, alkenyl, alkynyl, alkoxy, phenoxy or phenylthio, a 5- or 6-membered heterocyclic radical having one or two heter-oatoms selected from the group consisting of oxygen, sulfur and nitrogen, or unsubstituted or substituted phenyl;            R5 is hydrogen, C1-C4-alkylcarbonyl, C1-C4-haloalkylcarbonyl, C1-C4-alkoxycarbonyl, C1-C4-alkoxy-C2-C4-alkoxycarbonyl, C1-C4-alkylcarbamoyl, C1-C4-dialkylcarbamoyl, C1-C4-alkylsulfonyl, C1-C4-haloalkylsulfonyl, sulfamoyl, C1-C4-alkylaminosulfonyl, C1-C4-dialkylaminosulfonyl, phenylsulfonyl, which can be substituted one to three times by C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, halogen, cyano or nitro;            R6 is hydrogen, C1-C4-alkyl, C1-C4-alkoxy or together with R7 C=S and R7 is hydrogen, C1-C4-alkyl, C1-C4-alkylcarbonyl, C1-C4-halo-alkylcarbonyl, C1-C4-alkoxycarbonyl, C1-C4-alkoxy-C2-C4-alkoxycar-bonyl, C1-C4-alkylcarbamoyl, C1-C4-dialkylcarbamoyl, C1-C4-alkyl-sulfonyl, C1-C4-haloalkylsulfonyl, sulfamoyl, C1-C4-alkylamino-sulfonyl, C1-C4-dialkylaminosulfonyl, phenylsulfonyl, which can be substituted one to three times by C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy, C1-C4-haloalkoxy, C1-C4-alkylthio, halogen, cyano or nitro; excluding 6-amino-5-cyano-5-phenyl-2,3-pyridinecarboximide; and their agriculturally utilizable salts are described.
Patent CA-2144501-A1 (CA)
Title: Jug mate
Inventor: MCRAE PHIL PETER JOHN
IPC: B65D85/00
Filed: 1994-08-24
Abstract: This invention is a storage unit for empty 4L. plastic milk jugs commonly found in the average Canadian and USA household.
Patent CA-2145496-A1 (CA)
Inventor: KITO TSUTOMU
IPC: C09B67/46
Filed: 1995-03-24
Abstract: A thermochromic opaque/transparent composition is capable of exhibiting change in transparency together with change in color in response to temperature variation, a laminate member employing the same, and a three-dimensional article capable of concealing and revealing the interior, utilizing the laminate member.      A thermochromic opaque/transparent composition is composed of dispersion, in vinyl chloridevinyl acetate copolymer matric resin, which has been obtained by blending with hindered amine compound selected from piperidine derivatives within a particle size range of 0.1 to 2.0 µm, of a reversible thermochromic material consisting of (a) an electron-donating color-developing organic compound, (b) a compound having a phenolic hydroxyl radical, and (c) a homogeneous fused composition containing a compound selected from alcohols, esters, ketones and carboxylic acids, and capable of exhibiting reversible change in transparency together with change in color in response to temperature variation, with hysteresis with a temperature difference of 10°C to 50°C between the low and high trigger temperatures.
Patent CA-2145902-A1 (CA)
Title: Gas discharge lamp ballast circuit with automatically calibrated light feedback control
Inventor: ALLISON JOSEPH M
IPC: H05B41/36
Filed: 1995-03-30
Abstract: Disclosed is a ballast circuit for a high pressure gas discharge lamp, including a comparator circuit for producing a feedback error signal representing the difference between a feedback signal and a reference signal. The feedback signal is selectively one of a non-light feedback signal and a light feedback signal, as determined by a switching circuit. A power control circuit adjusts the level of power supplied to the lamp in response to the feedback error signal. A first, non-light feedback circuit supplies a non-light feedback signal to the comparator circuit, based on non-light information of the lamp that is fed back to the non-light feedback circuit. A light feedback circuit operative during a lamp warm-up period supplies a light feedback signal to the comparator circuit based on light intensity information that is fed back to the light feedback circuit. The light feedback circuit has an adjustable gain as determined by the difference between measured light intensity and maynitude of the light feedback signal produced A calibration circuit, operative during steady state lamp operation when the comparator circuit is responsive to the non-light feedback signal, automatically adjusts the gain of the light feedback circuit until a state is reached in which switching to light feedback control would resutt in substantially no change in light intensity. The calibration circuit incluses a calibration memory for storing the gain for use in a subsequent period of lamp warm-up.