baber/WOPTO huggingface dataset:
Patent CA-2038641-A1 (CA)
Title: Process and an apparatus for leak testing a package
Inventor: AARTS MATHIAS L C
IPC: G01M3/26
Filed: 1991-03-19
Abstract: Title: A process and an apparatus for leak testing a package Abstract This invention relates to a process and an apparatus for leak testing a package, which comprises -    placing a sheet-like and airtight wrapper around a part of the package liable to leakage, e.g. a closing element, -    means for applying a higher pressure to the outside than to the inside of the wrapper for causing the wrapper to fit closely around the said part of the package and for hermetically sealing the wrapper from a part of the package outside the part to be tested, -    means for sealing the space ("measuring space") between the enveloped part of the package and the wrapper pressed against it from the surrounding space by applying a pressure ("measuring pressure") in the closed measuring space which is different from the pressure prevailing in the package at this moment, and -    means for measuring the change of pressure in the closed measuring space for a determined measuring time.
Patent CA-2039402-A1 (CA)
Title: Air flow controller
Inventor: MURPHY DANIEL J
IPC: E06B7/06
Filed: 1991-03-28
Abstract: AIR FLOW CONTROLLER     ABSTRACT OF THE DISCLOSURE:     An air flow controller for use in obstructing and re-directing drafts that enter a room through a window is disclosed.  An air flow obstructing panel is used to re-direct drafts as mild air flow along a wall of the room.   A cylindrical weighted base member on the air flow controller fits into the bottom U-shaped portion of the frame of a window and is rotatably movable therein to allow for adjustment to a desired open position, which in turn determines the amount of air entering the room.   A side panel extends rearwardly from each end of the air flow obstructing panel, with a series of flanges extending, generally perpendicularly from said side panel.   These flanges help to hold the air flow controller in the window frame, at the desired open position.  Further, the air flow controller of the present invention is easily installed into and removed from a window frame.     c:6070-).abs/am/lMac.27.91
Patent CA-2041286-A1 (CA)
Title: Coupling device and switching system for an electrical cable coupling and a mechanical middle buffer coupling for rail vehicles
Inventor: LINDNER HARALD
IPC: B61G5/06
Filed: 1991-04-26
Abstract: The reliable initiation and chronological sequence for coupling or uncoupling a mechanical middle buffer coupling and an electrical cable coupling having a common rotary drive and with minimum control effort, is effected using a shaft, which can be driven at right angles to the coupling axis and fastened non-rotatably to an actuating arm extending into a guide rail of the cable coupling.  This acts as a direct drive member for the cable coupling, and includes an uncoupling lever for the mechanical middle buffer coupling thus positively coupled to the actuating arm via the shaft.  A switching arrangement with cams controls the initiation and the chronological sequence of the coupling and uncoupling process.
Patent CA-2041826-A1 (CA)
Inventor: GARZA LUIS A A M
IPC: B60J10/02
Filed: 1991-05-03
Abstract: ABSTRACT OF THE DISCLOSURE    A mold apparatus and method for forming encapsulated glass which includes the use of a plurality of mold sections 10 and 12 which, when closed, cooparate with a sheet 5 and at least one seal 25 to define a gasket forming cavity 35.  When a gasket forming material is injected into the gasket forming cavity 35 and is allowed to at least partially cure, a gasket 2 is formed on at least a portion of the sheet 5 to produce a window gasket assembly 50.  A seal 25 with an outwardly angled facing portion 27 defines an interior face 37 of the gasket forming cavity 35 and prevents leakage of the gasket forming material and the formation of flash on the sheet 5.   In one embodiment of the invention, the mold section 12 is made of a resilient material and mold section 10 is made of a rigid material.   In another embodiment of the invention, mold section 12 has positioned therewithin a rigid member 45 having a finishing surface 48 which cooperates with the seal 25 and the sheet 5 to define a gasket forming cavity 35.  The finishing surface 48 of the rigid member 45 defines a face portion of the window gasket assembly 50.  Preferably, one of the mold sections 10 and 12 is made of a resilient resin material and the other mold section is made of a rigid resin material, with the rigid mold section 10 having the rigid member 45 positioned so that the finishing surface 48 defines a face portion of the window gasket assembly 50 to be formed.
Patent CA-2042353-A1 (CA)
Title: Preparation of hard urethane foams
Inventor: HENN ROLF
IPC: C08G65/26
Filed: 1991-05-10
Abstract: The present invention relates to a process for the preparation of a hard foam containing urethane groups or urethane and isocyanurate groups by the polyisocyanate polyaddition process, by reacting a)   a polyoxypropylene- or polyoxyethylene-polyoxypropylene-polyol containing secondary hydroxyl groups, having a functionality of from 3.5 to 4.3, a hydroxyl number of from 350 to 650 and a viscosity of from 500 to 2,500 mPas at 23 °C and prepared by anionic polymerization of 1,2-propylene oxide or ethylene oxide and 1,2-propylene oxide onto an initiator molecule mixture containing, based on the total weight, a1)  from 40 to 80% by weight of a hexanetetrol, a2)  from 1 to 30% by weight of a hexanetriol, a3)  from 0 to 35% by weight of glycerol and a4)  from 0 to 15% by weight of sorbitol or mannitol, or a mixture thereof, b)   optionally, a low-molecular-weight chain extender and/or crosslinking agent with c)   an organic, modified or unmodified polyisocyanate; in the presence of d)   a blowing agent, e)   a catalyst and, optionally, f)   assistants and/or additives, and novel polyoxypropylene-polyols and polyoxyethylene-polyoxypropylene-polyols which can be used for this purpose.
Patent CA-2042495-A1 (CA)
IPC: E04D13/08
Filed: 1991-05-14
Abstract: A noise baffle for reducing noise in rain gutter systems is provided.  A screen or other perforated or fibrous surface is secured beneath a vertical downspout section and above the surface of an angled downspout section for reducing the noise caused by water striking the surface of angled downspouts.  The screen eliminates or substantially reduces the noise by breaking the fall of the water falling in the vertical downspout section and dispersing the stream into tiny droplets which do not strike the bottom of the angled downspout section with sufficient force to create noise.
Patent CA-2042859-A1 (CA)
Inventor: KNOBLOCH GERRIT
IPC: C08K5/378
Filed: 1991-05-17
Abstract: A composition Comprising an elastomer and a stabiliser mixture consisting of a) at least one phenol of formula   wherein R a and R b are each independently of the other C1-C4alkyl and R c is C6-C12alkyl, and b) at least one phenol of formula II      wherein n is 0 to 3, R1 and R2 are each independently of the other C1-C12alkyl or -CH2SR3, R3 is C8-C18alkyl, phenyl or benzyl, and R4 is hydrogen or methyl.
Patent CA-2046530-A1 (CA)
Title: Optoelectronic wide bandwidth photonic beamsteering phased array
Inventor: NEWBERG IRWIN L
IPC: G01S17/02
Filed: 1991-07-09
Abstract: A transmit/receive circuit for each of the antenna elements of a radar phased array including an optical fiber true time delay circuit responsive to an electrical RF signal for providing an optical signal having a controlled time delay, an optical fiber for propagating the time delay controlled optical  signal,  an optical detector circuit responsive to the propagated time delay controlled optical signal for providing a time delay controlled electrical signal, transmit circuitry responsive to the time delay controlled electrical signal for providing to the associat-ed antenna element a transmit signal based on the time delay controlled electrical signal, and receive circuitry responsive to the time delay controlled electrical signal and the signal received by the associated antenna element. A  first RF  switch selectively couples  the time delay controlled electrical signal to the transmit circuit during transmit times, and to the receive circuit during receive times;  and a  second RF switch couples the associated antenna element to the transmit circuit during transmit times, and to the receive circuit during receive times. The  receive  circuit  further  includes analog-to-digital conversion circuitry whose sample timing is controlled so as to provide for time alignment of the received signal relative   to   the   received   signals   of   the   other transmit/receive circuits of the phased array. Alterna-tively, such time alignment is provided pursuant to pro-cessing of the sampled receive signals from the trans-mit/receive circuits of the phased array.
Patent CA-2049774-A1 (CA)
Inventor: MAST ERNEST D
IPC: C21C5/46
Filed: 1991-08-23
Abstract: A self-cooling lance or tuyere for the conveying of gases, liquids or solids into or onto a metallurgical bath comprises a heat pipe or thermosiphon made of two tubular members adapted to be  immersed in a furnace environment at one end, such tubular members defining a closed annular chamber therebetween  for containing a working substance adapted to evaporate in the region of the heat pipe which is in the furnace environment and flow toward the end which is out of the hot environment where it condenses and flows back to the evaporator region.          Means are provided for introducing the gases, liquids or solids to be conveyed into the bath through the inner tubular member of the lance.
Patent CA-2050202-A1 (CA)
Title: Perhydrosiloxane copolymers and their use as coating materials
Inventor: BANEY RONALD H
IPC: C08L83/05
Filed: 1991-08-29
Abstract: PERHYDROSILOXANE COPOLYMERS AND THEIR USE AS COATING       MATERIALS                         ABSTRACT           The present invention relates to soluble perhydro-siloxane copolymers of the formula [H2SiO]x[HSiO3/2]y wherein the mole fractions x and y total 1.  In addition, the present invention relates to the use of these novel copolymers as coating materials, especially for use on electronic devices.
Patent CA-2050549-A1 (CA)
Inventor: POWELL TIMOTHY E
IPC: F24H9/16
Filed: 1991-09-03
Abstract: An  electric  water  heater  is  provided with  a  vertically enlarged,  sealed bottom end cap which functions as an integral drainage catch basin to receive water leaking from the water heaterls internal hot water storage tank into the annular space between the  storage  tank  and the outer jacket of  the water heater.  A drain pipe extends through a sealed opening in the end cap and is used to drain away water entering the cap,  thereby eliminating the previous necessity of providing the water heater with a separate drainage catch pan structure.   The storage tank is electrically grounded to the outer water heater jacket at a point above the bottom end cap, thereby eliminating the necessity of forming this grounding interconnection with a grounding screw extending upwardly through the bottom end cap and forming a water leak path through the bottom of the end cap.
Patent CA-2052024-A1 (CA)
Inventor: CHEN RICHARD K
IPC: A23L11/00
Filed: 1991-09-23
Abstract: Soybean curd is manufactured by mixing soybean milk with a coagulating agent, continuously filling the resulting liquid mixture into containers, continuously passing the containers through a zone in which the liquid mixture receives sufficient microwave energy to heat the interior of the mixture to a temperature in a range of about 75 - 85 DEG C, removing the containers from the zone and maintaining the containers at a temperature in a range of about 80 - 90 DEG C for about 20 -50 minutes or first at a temperature in a range of about 80 -90 DEG C for about 10 - 15 minutes and immediately thereafter at a temperature of about 50 - 65 DEG C for about 15 -25 minutes, and cooling and storing the resulting soybean curd in a refrigerated room. <IMAGE>
Patent CA-2053130-A1 (CA)
Title: Method for esophageal invagination and devices useful therein
Inventor: FILIPI CHARLES J
IPC: A61B17/00
Filed: 1991-10-10
Abstract: A technique for invaginating the esophagus at the gastroesophageal junction is disclosed, as well as an invagination device useful in the described technique.  The invagination device includes an introducer guide which has an outside diameter approximating that of the esophagus and a plurality of needle-receiving lumens extending to its outer diametric surface.  The invagination device also has an engagement assembly which includes 10 needles, each having a retracted position in which they lie within the needle-receiving lumens of the introducer guide, and an extended position in which they extend out of the lumens and project radially from the guide for engagement with the esophagus at the gastroesophageal junction.  The invagination device is introduced transorally into the esophagus, its engagement assembly is activated to place the needles in their extended position in engagement with the esophagus, and the engaged invagination device is advanced the toward the stomach to fold the attached esophagus beyond the gastroesophageal junction.  A remotely operable fastening assembly, which has been introduced into the stomach through an operating channel/insufflation port, is then operated to fasten the invaginated gastroesophageal junction to the surrounding involuted fundic wall.  Finally, the needles are retracted back into their needle-receiving lumens and the invagination device and the fastening assembly are removed from the body of the patient.  This minimally-invasive technique accomplishes the formation of a new valve between the esophagus and stomach, thus preventing acid reflux.
Patent CA-2053842-A1 (CA)
Title: Gm3 analogous compound and preparation method thereof
Inventor: NUMATA MASAAKI
IPC: C07H13/04
Filed: 1991-10-21
Abstract: ABSTRACT OF THE DISCLOSURE   GM3 analogous compound (I) below:       ( I ) wherein one of R2 and R3 represents a neuramic acid group represented by general formula (V):                               R5 represents         or hydrogen; R6 represents hydrogen or a ceramide group represented by general formula (VI)  :
Patent CA-2054295-A1 (CA)
Title: Evaporation-inhibited alcohol-based deicers/anti-icers
Inventor: GANCY ALAN B
IPC: C09K3/18
Filed: 1991-10-25
Abstract: ABSTRACT OF THE DISCLOSURE Methanol, ethanol, and methanol/ethanol deicers are formulated to contain additives which inhibit evaporation of the deicers during application, thereby dramatically reducing evaporative losses.  These additives also function to reduce flammability of accidental spills during transportation and handling. The additives consist of long chain aliphatic alcohols which are economical, effective at low concentrations, relatively non-corrosive, and relatively harmless to asphalt and Portland cement concrete pavements. The inhibiting film which forms at the air/solution interface has been shown to be formed through absorption of atmospheric moisture into the deicer. Films are, surprisingly, formed when the inhibitor is at concentrations far below the equilibrium saturation concentration in the original test solution, at test temperature.     Addition of a controlled amount of water to the inhibited alcohol formulations desirably increases their density or specific gravity, and reduces the concentration of additive required to effectively inhibit evaporation losses of applied deicer.  The added water also increases the solubility of added known deicers, e.g., urea in the formulation.     The function of an added deicer or freezing point depressant is to further increase the density or specific gravity of the formulation.  Quite unexpectedly, however, it has been discovered that addition of a deicer such as urea to the inhibited methanol dramatically reduces methanol evaporation rate, i.e., reduces it far below the level which would have normally been anticipated through the application of Raoult's Law. Preferred embodiment deicer formulations of this invention have exhibited virtually zero evaporation rate immediately upon pouring the deicer into shallowtest vessels.  Both magnetically-stirred and quiescent inhibited test liquids exhibit dramatically reduced evaporation rates.  Deicers should therefore be effective on undisturbed and on trafficked roadways.     The novel evaporation-inhibition feature allows for the first time consideration for commercial use of economical alcohols possessing low osmolar weight and desirably low eutectic temperatures In the water/ice system.
Patent CA-2058919-A1 (CA)
Title: Spike - nozzle firefighting water nozzle
Inventor: JESKE MARVIN A
IPC: A62C8/00
Filed: 1992-01-07
Abstract: ABSTRACT            This invention relates to a fire-fighting water nozzle. It is a hollow steel tube which is pointed to facilitate penetration of doors, walls and panels.          The pointed end of the tube is perforated with drilled holes to allow water to be projected from the pointed end of the tube, the holes being so arranged to provide maximum coverage by the water spray. The opposite end of the tube is flanged and threaded to accommadate the common 1? inch fire hose coupling. A high-impact plastic cap is placed over the flanged (threaded)end of the tube to allow the tube to be driven (with the use of a hammer) through partitions walls, etc. without damage to the hose-coupling threads.
Patent CA-2059317-A1 (CA)
Title: Immuno-enzymatic test for detection of hiv-1 antibody
Inventor: ZENG YI
IPC: G01N33/569
Filed: 1992-01-14
Abstract: ABSTRACT An immuno-enzymatic method for the detection of antibodies to a virus under test, a diagnostic kit therefor, new cell lines for use in said method, a method for preparing said cell line for use in antibody detection, and an immuno-enzymatic test strip and kit therefor are described.     32-122/ljb
Patent CA-2060812-A1 (CA)
Title: Erection scaffolding which is movable in a lift shaft for the mounting of shaft equipment
Inventor: KLEIN HORST
IPC: E04G3/28
Filed: 1992-02-11
Abstract: ABSTRACT.   For the assembly of shaft equipment, an erection scaffolding with a first working platform (4),  with a second working platform (5), with a third working platform (6) and with a fourth working platform (7) is moved in vertical direction.  The first working platform (4) is arranged at the lower end and the second working platform (5) is arranged at the upper end of a cage support frame (8), which is provided for the reception of the lift cage after the erection operations.  Above the support frame (8), the erection scaffolding continues with the third working platform (6) and ends with the fourth working platform (7).   Serving as suspension of the support frame (8) is a suspension tube (9), a lower deflecting roller (10) arranged  at  the  upper  end  of  the  suspension  tube  (9)  and  an  upper deflecting roller (12) arranged at the shaft support (11), which rollers are connected by way of a cable (13), suspended 3:1, of a hoist tackle (14) anchored at the support frame (8).  The shaft support (11) carries a speed limiter (17) as well as a tackle with cable drum (18) which serves for the transport of material.   In that case, a tackle cable (20) is led off to the working point by way of a jib crane (21) arranged at the upper end of the suspension tube (9).  The working platforms (4; 5; 6; 7), which are accessible by way of  ladders (22)  and trap doors,  are secured by railings (24) and hinged barriers.   (Figure 1)
Patent CA-2060821-A1 (CA)
IPC: F21V15/00
Filed: 1992-02-07
Abstract: A head lamp device for automobiles has a light source and a cover member arranged in front of the light source.          The light source is comprised of a transparent hard resin plate curved outwardly at its central part, and a transparent soft resin sheet intimately in contact with a rear surface of the transparent hard resin plate with a peripheral edge of the transparent soft resin sheet attached fluid tight to a peripheral edge of the transparent hard resin plate.   The transparent hard resin plate has a pipe through which a colored solution is supplied into and removed from a space formed between the transparent hard resin plate and the transparent soft resin sheet.
Patent CA-2063504-A1 (CA)
Inventor: PHILLIPS VAN L
IPC: A61F2/66
Filed: 1992-03-19
Abstract: A prosthetic foot characterized by a forefoot portion having a heel portion demountably and interchangeably connected thereto. The forefoot portion and heel portion are fabricated from polymer impregnated and encapsulated laminates or other reinforcing fiber, including such materials as carbon fibers and/or fiberglass or synthetic fibers such as Kevlar. interchangeablility of heel and forefoot portion permits interchangeability of heel and forefoot portions to match the weight, stride and activity schedule of the wearer utilizing the prosthetic foot. Auxiliary  ankle member and wedge means between the forefoot portion and the heel portion provide additional adjustability.
Patent CA-2066426-A1 (CA)
Title: Ore flotation process using carbamate compounds
Inventor: BUSH JAMES H
IPC: B03D1/012
Filed: 1991-06-06
Abstract: Title:   ORE FLOTATION PROCESS USING CARBAMATE COMPOUNDS     Abstract of the Disclosure The present invention relates to an improved process for beneficiating an ore.   In particular,  the process is useful for beneficiating ores and recovering metal values such as gold,  copper,  lead, molybdenum, zinc,  etc.,  from the ores.   In one embodiment,  the process comprises (A)  forming a slurry comprising at least one crushed mineral-containing ore,  water and a collector which is at least one carbamate represented by the formula:                             (I) wherein each R1  is independently hydrogen,  a hydro-carbyl group having from 1 to about 18 carbon atoms, or R1  taken together with R2 and the nitrogen atom form a five,  six or seven member heterocyclic group;  each R2 is independently a hydrocarbyl group having from 1 to about 18 carbon atoms,  or R2 taken together with R1  and the nitrogen atom form a five,  six or seven member heterocyclic group;  and R3 is a hydrocarbylene group having from 1 to about 10 carbon atoms;         (B)  subjecting the slurry from step  (A)  to froth flotation to produce a froth; and (C)  recovering a mineral from the froth.
Patent CA-2068772-A1 (CA)
Title: Method and apparatus for the production of nodular or compacted graphite iron castings
Inventor: FESSEL MANFRED
IPC: B22C9/08
Filed: 1992-05-15
Abstract: ABSTRACT        METHOD AND APPARATUS FOR THE PRODUCTION OF NODULAR OR COMPACTED GRAPHITE IRON CASTINGS          A method for producing nodular or compacted graphite iron castings in a mould having a sprue, an ingate and a mould cavity, having a first part below and  a  second  part  above  the  level  of  the  ingate, comprises delivering particulate magnesium-containing and silicon-containing treatment agent from a dispenser into a stream of molten metal entering the sprue such that the treatment agent is added at a constant rate of addition while the first part of the mould cavity is filled with iron, and at a decreasing rate while the second part is filled.  The addition of the treatment agent is controlled by means of apparatus comprising a container,   a  measuring  and  data  capture  device connected via signal transforming means to a control means, conveyor means located below the container and connected to the signal transforming means, and means for injecting the particulate treatment agent into the metal stream.
Patent CA-2069513-A1 (CA)
Title: Linear transmitter training method and apparatus
Inventor: GAILUS PAUL H
IPC: H04L27/36
Filed: 1991-09-30
Abstract: A linear transmitter having both an open loop and a closed loop training mode capability functions to schedule and facilitate these training modes in a manner that reduces adjacent channel splatter. A training waveform can be utilized to enhance these operational objectives. Scheduling of the open loop and closed loop training modes can be ordered, in a TDM system, in a variety of ways.