baber/WOPTO huggingface dataset:
Patent CA-2002740-C (CA)
Title: Engine breather assembly with oil drain back
Inventor: DAVIS THOMAS L
IPC: F01M13/04
Filed: 1989-11-10
Granted: 1993-11-02
Abstract: ABSTRACT OF THE DISCLOSURE      A breather  assembly  for  a  combustion  engine  which conserves oil by condensing oil vapor  from the engine and returning the oil to the crankcase.  The breather assembly is mounted to the crankcase cover and includes a drain tube extending into a low pressure area of the crankcase.  The breather includes a baffled interior chamber with an inlet opening at its lower end having a valving mechanism biased towards the closed position.   Vapor travels through the valve into the chamber and over a baffle wall into an outer annulus.  Breather holes at the bottom of the annulus allow gases to escape.  Oil is condensed as the vapor travels up the  inner  chamber.  A  vacuum  created  by the  crankcase through the drain back tube causes the condensed oil to flow back into the crankcase.   In a preferred embodiment, the breather assembly is molded using a polyurethane material.
Patent CA-2007869-C (CA)
Title: Electronic article surveillance device with remote deactivation
Inventor: ANDREWS GEORGE F
IPC: G08B13/24
Filed: 1990-01-16
Granted: 1994-02-01
Abstract: ABSTRACT OF THE DISCLOSURE An improved electronic article surveillance device of the type utilizing a parallel resonant circuit and primarily intended for use in tagging retail items for the purpose of preventing unauthorized removal or theft of such includes, within the parallel resonant circuit, at least one transmission line resonator 24 whereby the device may be easily and efficiently deactivated.  The length of the transmission line resonator 24 is one-quarter wave length of the deactivation frequency, and deactivation  frequency  is  preferably  selected  from readily available electromagnetic radiation such as, for example, microwave energy or police radar energy.
Patent CA-2008911-C (CA)
Title: Process for preparing ethyl 6-bromo-5-hydroxy-4- dimethylaminomethyl-1-methyl-2-phenylthiomethylindole-3- carboxylate hydrochloride monohydrate and a pharmaceutical preparation containing the same having the antiviral, interferon-inducing and immunomodulatory effects
Inventor: TROFIMOV FEDOR A
IPC: E04B1/32
Filed: 1990-01-30
Granted: 1996-12-10
Abstract: A process for preparing a novel compound - ethyl 6-bromo-5-hydroxy-4-dimethylaminomethyl-1-methyl-2-phenyl-thiomethyl-3-carboxylate hydrochloride monohydrate of the following formula:       involves treating ethyl 5-acetoxy-1,2-dimethylindole-3-car-boxylate with a brominating agent in an inert organic sol-vent under reflux, reacting the resultant ethyl 5-acetoxy-6-bromo-2-bromomethyl-1-methylindole-3-carboxylate to react with thiophenol in the presence of an alkali metal hydroxide or its alcoholate in an organic solvent, reacting the resultant ethyl 6-bromo-5-hydroxy-1-methyl-2-phenyl-thiomethylindole-3-carboxylate with an aminomethylating agent in an organic solvent at a temperature from 65° to a temperature of refluxing the reaction mixture.  The end product is then isolated from the resultant base-ethyl 6-bromo-5-hydroxy-4-dimethylaminomethyl-1-2-phenylthiomet-hylindole-3-carboxylate.  The compound according to the invention is an active principle of a pharmaceutical preparation having the antiviral, immunomodulatory and inerferon-inducing effect.
Patent CA-2011318-C (CA)
Title: Sterilant mixture and sterilization method
Inventor: CONVISER STEPHEN ALAN
IPC: A01N43/20
Filed: 1990-03-02
Granted: 1998-07-07
Abstract: A sterilant mixture comprising 15 to 30 mole percent ethylene oxide and 70 to 85 mole percent 1,1-dichloro-2,2,2-trifluoroethane and/or 1-chloro-1,2,2,2-tetrafluoroethane, and a sterilization method using same.
Patent CA-2018498-C (CA)
Title: Apparatus for the production of paper napkins and similar products
Inventor: GHILARDI MAURO
IPC: B31D1/04
Filed: 1990-06-07
Granted: 1994-12-13
Abstract: The apparatus for the production of paper napkins or other  similar  products  which  includes  a  feeder  for continuously  supplying  a web  of material,  a  slitter  for cutting the web into a plurality of longitudinal strips, a first folder to  fold the strips  lengthwise,  a transverse cutter for providing lengths of longitudinally folded strips, a  second  folder  to  fold the  strips  transversely,  and  a stacker to pile up the finished napkins.  A driving roller matches the two edges of the longitudinally folded strips and downstream of the driving roller are inclined surfaces to separate the longitudinally folded strips to lay them down on a common geometric plane parallel to each other.
Patent CA-2022536-C (CA)
Title: Method and machine for helically depositing a band of film on the vertical faces of a palletized load
Inventor: THIMON JACQUES
IPC: B65B11/04
Filed: 1990-08-02
Granted: 1997-03-25
Abstract: A method and apparatus for helically banding a film on a palletized load, wherein during the banding operation the reel of film and the control roller are held in a fixed location with their horizontal axes parallel. The film is acted upon in order to, in suc-cession and in this order,  starting from the reel of film,  pass  it  over  the  control  roller,  change  its direction, continuously, in order to switch its trans-verse  direction  from  the  horizontal  state  when  it leaves the roller to the vertical state when it enters the roller, and to pass it over the roller.
Patent CA-2023214-C (CA)
Title: Copolymer of cycloolefin and ethylene
Inventor: SAGANE TOSHIHIRO
IPC: C08F210/02
Filed: 1990-08-14
Granted: 1996-10-15
Abstract: Disclosed is a novel cycloolefin random copolymer formed from 10-90 mol% of ethylene and 90-10 mol% of an isomer mixture of up to 80 mol% of an endo form and at least 20 mol% of an exo form of a cycloolefin of the formula:              (I) (wherein R1 through R18 are each hydrogen, halogen or hydro-carbon, a pair of some of them may form a cyclic group, n is 0 or 1, m is 0 or a positive integer, provided m and n are not 0 simultaneously), and having an intrinsic viscosity of 0.05 to 10 dl/g as measured in decalin at 135°C.
Patent CA-2023570-C (CA)
Title: Blade sharpener
Inventor: PETROFF CVETAN
IPC: B24B/
Filed: 1990-08-17
Granted: 1993-12-07
Abstract: A B S T R A C T       A blade  sharpener  having a sharpening mechanism which functions to sharpen a blade engaging that mechanism and being moved  longitudinally  relative  thereto.   The  sharpener  also includes sharpening defeating means which, when operative,  at least inhibits and possibly prevents sharpening of a blade by the   sharpening   mechanism   when   that  blade   is   moved longitudinally through  the  sharpener in one direction.   The defeating means is responsive to blade movement so as to adopt an  operative  condition  when  the  blade  is  moved  in  the aforementioned  one  direction,  and  to  adopt  an  inoperative condition when the blade is moved through the sharpener in the opposite  direction.   The  defeating  means  includes  a  blade engaging  member  such  as  a  roller,  and  in  the  operative condition that roller engages and presses against the cutting edge of the blade so as to impose a force on the blade which acts counter to the force  causing  the  blade  to  engage  the sharpening mechanism.   The counter force therefore tends to push the blade out of contact with the sharpening mechanism. The roller does not engage the blade,  or at least does not apply the counter force, when the defeating means is  in the inoperative condition.  An anti-bottoming groove is provided around the circumferential surface of the roller to provide a location  for  the cutting  edge  of  the knife blade and that groove is formed to avoid contact between the actual cutting edge of the blade and the base of the groove.
Patent CA-2027468-C (CA)
Title: Method and apparatus for the installation of sector-shaped curtains for correspondingly sector-shaped windows
Inventor: BOZZO ROMEO T
IPC: A47H1/18
Filed: 1990-10-12
Granted: 1995-03-14
Abstract: A new method and apparatus for the installation of sector-shaped curtains on correspondingly shaped windows requires the provision of a piece of curtain material of suitable length and width; sheer tape is attached to the top edge and the piece is gathered using the tape to the length of the curved circumferential portion of the window.  One part of a two part hook-and-loop fastening is attached to the curved portion of the window while the other is sewn to the gathered curtain top edge and the curtain is then attached using thus fastening.  A securing member having two protruding side-by-side impaling spikes is attached to the middle of the straight circumferential window casing portion and the curtain is then impaled while under tension on the two spikes, one half on each.  The curtain is usually completed by impaling a decorative finial on a third spike disposed between the two on which the curtain is impaled so as to cover the bunched curtain material at this point.
Patent CA-2039193-C (CA)
Inventor: TATE KAZUHIKO
IPC: B01J23/755
Filed: 1991-03-27
Granted: 1997-10-28
Abstract: A catalyst for producing phenol consisting essentially of a nickel compound supported on a metal oxide carrier, or a catalyst for producing phenol consisting essentially of iron oxide and nickel oxide, and processes for producing phenol using either of the above catalyst.  The catalysts of the invention exercise a high conversion of benzoic acid and a high selectivity to phenol, and phenol can be produced in a high yield, particularly in a high space time yield through the processes of the invention using the above catalysts.  The above conversion, selectivity and space time yield can be improved by calcining the catalyst at 600 to 900°C.
Patent CA-2041423-C (CA)
Title: Structure and method for protectively encasing a level or the like
Inventor: SEVEY DOUGLAS L
IPC: B25H3/00
Filed: 1991-04-29
Granted: 1994-11-01
Abstract: A case for an elongated tool such as a level or the like includes outer walls which cooperate to define an internal cavity into which the tool is placed.  Spaced indentations are provided along the length of the case, with the indentations extending around the entire periphery of the case.  Each indentation provides a supporting surface adapted for placement closely adjacent an outer surface of the tool, for maintaining the tool out of contact with the outer walls of the case.  An end cap encloses the open end of the case for securing the level therein, and indentations are formed in the end cap and in the end of the case for spacing the ends of the level inwardly from the end walls.  The level is cushioned by an air space between the outer surfaces of the level and the inner surfaces of the outer walls.
Patent CA-2043079-C (CA)
Title: Angle sensor with ccd
Inventor: HECHEL DENNIS LAWRENCE
IPC: G01M17/007
Filed: 1991-05-23
Granted: 2003-03-25
Abstract: An automotive vehicle wheel alignment system uses a light source and a linear CCD to measure angles.      A mask having a slit through which light from the light source is projected onto the surface of the linear CCD is interposed between the light source and the linear CCD.      A microprocessor controls the light source and the linear CCD and uses an output from the linear CCD to calculate an angle between the light source and the linear CCD.      The microprocessor uses a search algorithm to locate the center of the image projected on the linear CCD.      Calibration data for the linear CCD is stored in an EEPROM.
Patent CA-2044526-C (CA)
Title: Process for the production of substantially closed-cell rigid foams containing urethane, urea and buiret groups showing excellent adhesion to solid surfaces and their use
Inventor: WELTE RAINER
IPC: C08G101/00
Filed: 1991-06-13
Granted: 2002-10-08
Abstract: Substantially closed-cell rigid foams containing urethane, urea and biuret groups are produced by reacting an NCO terminated prepolymer with a compound having at least two isocyanate-reactive hydrogen atoms and a molecular weight of from about 400 to about 10,000 in the presence of a catalyst and water by any of the known techniques. The NCO terminated prepolymer is the reaction product of x parts by weight of an at least difunctional polyol having an OH value of less than 100 with y parts by weight of an at least difunctional polyisocyanate. The ratio of x to y is at least 1:10. The product foams are particularly useful as insulating materials.
Patent CA-2046060-C (CA)
Title: Retarders for hardening phenolic resins
Inventor: GERBER ARTHUR HARRY
IPC: C08G8/00
Filed: 1991-07-02
Granted: 1997-09-23
Abstract: There is disclosed methods and compositions for retarding the room temperature hardening of phenolic resole resins when such resins are mixed with lightburned magnesium oxide with or without an ester functional hardening agent. Compounds which act as retarders include azelaic acid,  salicylamide,  sulfanilic acid, glyoxal, salicylic acid, N-methylaniline, and 2,6-diethylaniline.
Patent CA-2049464-C (CA)
Title: Hot gas defrost system for refrigeration systems and apparatus therefor
Inventor: GREGORY CHARLES
IPC: F25B39/02
Filed: 1991-08-19
Granted: 2002-01-01
Abstract: This invention provides a full flow vaporizer for use in a refrigeration system (which may be part of a heat pump) employing hot gas from the compressor to periodically defrost the cooling coil or coils. The vaporizer usually consists of three concentric circular cross-section tubes, the innermost tube receiving the fluid from the coil and being divided about midway along its length by a disc transverse barrier into first and third chambers. The cylindrical wall of the first chamber is provided with a plurality of holes directing the fluid forcefully radially outwards into a second chamber between the innermost and middle tubes and against the inner wall of the middle tube, which is heated by hot refrigerant gas passing in a fourth chamber between the middle and outermost tubes, the fluid then passing from the second chamber into the third chamber through a similar plurality of holes in the innermost tube cylindrical wall. The first and third chambers and the configuration of the holes leading from them into the second chamber are similar, so that the device is completely reversible and it is immaterial which end of the innermost tube is used as the inlet and which end is used as the outlet. The flow capacities of the passages and the bores are chosen to be in a specific range of flow capacities relative to one another, so that when not in use the vaporizer has no appreciable effect on the remainder of the system.
Patent CA-2049698-C (CA)
Title: Dihydrogen orthophosphate deicing composition
Inventor: IRELAND DONALD T
IPC: C09K3/18
Filed: 1991-08-22
Granted: 2006-10-31
Abstract: A deicing composition which includes NaCl, a water soluble magnesium salt and a water soluble dihydrogen orthophosphate is described. A method for deicing utilizing the composition also is described.
Patent CA-2056805-C (CA)
Title: Improved spray nozzles
Inventor: WALDRUM JOHN E
IPC: B64D1/18
Filed: 1991-12-02
Granted: 2001-12-25
Abstract: An improved spray nozzle for use with aircraft includes a small diameter, plastic body having a forward liquid inlet and a transverse cavity receiving liquid chemicals under pressure through the inlet. A plurality of capillary tubes in fluid communication with the cavity are secured in the body to open rearwardly in a horizontal, planar fan-shaped configuration protruding from a rear wedge shaped end of the body. The transverse distance across the body and the capillary tubes is less than one and one-half inches to minimize gravity pressure differentials across the plurality of tubes when the aircraft is banked to thereby prevent liquid chemical dribbling. A removable baffle is secured within the transverse cavity in position to be impinged by the entering liquid chemicals to equalize liquid flow and pressure throughout the cavity to thereby provide equal flow through each of the capillary tubes.
Patent CA-2058721-C (CA)
Title: Improved inshot burner cluster apparatus
Inventor: EVENS LANCE J
IPC: F23D14/04
Filed: 1992-01-03
Granted: 2002-07-02
Abstract: The improved inshot burner cluster apparatus of the present invention functions to provide combustion of a gaseous fuel and air mixture which is injected through an aperture in the inlet plate into the combustion compartment of a heat exchanger, and includes a burner cluster which may have a selected multiplicity of burners formed from an inter-joined upper half shell and a lower half shell, The modular, and essentially clam-shell, form of construction allows for ease of forming the burner elements by embossing the sheet metal half shells, for example using a progressive type of punch press die which can thereafter cut-off any number of burners to form a burner cluster.
Patent CA-2063768-C (CA)
Title: Apparatus for drying cut timber
Inventor: BRUNNER REINHARD
IPC: F26B7/00
Filed: 1992-03-23
Granted: 1998-06-09
Abstract: Apparatus for drying cut wood has a cylindrical vessel with end covers at least one of which can be opened. The interior of the vessel is divided by a horizontal partition into a drying chamber above the partition, in which the wood is placed, and a condensation chamber below the partition. On opening in the partition provides restricted communication between the chambers. The interior of the vessel is filled with a drying medium made up of air and water vapour. A heater in the drying chamber heats the crying medium and a fan produces circulation of the drying medium in the drying chamber. The upper portion of the vessel wall, above the partition, is heat insulated while the lower portion, below the partition, is uninsulated and serves as a condenser for condensing water vapour in the condensation chamber. The lower portion of the vessel wall is cooled by cooling coils in a foundation which supports the vessel. In one embodiment, the wood is stacked on the load platform of a car which runs into the vessel through one end thereof, when open. The load platform of the car serves as the partition between the chambers. The operation of the apparatus is controlled by a microprocessor which has inputs connected with heat, pressure, and humidity sensors provided in the vessel.
Patent CA-2066342-C (CA)
Title: Storage system for storing in roll form
Inventor: STAUBER HANS-ULRICH
IPC: B65G1/04
Filed: 1992-04-16
Granted: 1997-08-05
Abstract: A gripper for handling printed product rolls and empty roll cores is used for intermittently storing printed products wound on roll cores.  The gripper has a central piece (10), which is fixed to a conveying or transporting means and which carries a gripper arm star or spider (20).  On the gripper arm star (20) are arranged substantially in a circle a plurality of radially movable roll clamping means (30) for clamping a roll or rolls (W) from the periphery thereof and core supporting means (40) for engaging and supporting a rosette-shaped arrangement of juxtaposed roll cores (WK).  The core supporting means (40) are movable, e.g. pivotable, in such a way that, in a core handling configuration of the gripper they are positioned within the circle formed by the roll clamping means and in a roll handling configuration of the gripper they are moved out of that circle.  The movements of the gripper parts are driven by linear drives and monitored by sensors, so that the gripper can operate in a fully automated manner.
Patent CA-2071845-C (CA)
Title: Method and apparatus for producing customized video recordings
Inventor: CURY BRIAN LUKE
IPC: H04N5/7826
Filed: 1990-10-29
Granted: 1995-08-08
Abstract: Method and apparatus for produ-cing customized video recordings. The apparatus includes audio/video repro-duction equipment for displaying prompt information (16) and for providing a first audio signal (27) synchronous with the prompt information (16). The apparatus further includes a device (30) for provid-ing a first video signal representative of background information, audio/video re-cording equipment (21) for providing a second video signal (12) and a second au-dio signal (52) representative of a live performance performed synchronously with the display of the prompt informa-tion (16). A mixer (32) is provided for combining the first and second audio and video signals, and creative modifica-tion are added whereupon the combined signals are recorded (21) to form the cus-tomized video recording.
Patent CA-2077595-C (CA)
Title: Hydraulic cushioning system for press, having hydraulic power supply including means for adjusting initial pressure to be applied to pressure-pin cylinders
Inventor: KIRII KAZUNARI
IPC: B21D24/02
Filed: 1992-09-04
Granted: 1998-09-22
Abstract: A hydraulic cushioning apparatus for a press having an upper and a lower die assembly (3, 9) for forming a sheet-like workpiece   (6),   including   hydraulic   cylinders   (54) incorporated in one of the upper and lower die assemblies, and pressure pins (52) linked with the respective hydraulic cylinders. The pressure pins are reciprocable to apply a cushioning force (F) to the workpiece, in a pressing action of said die assemblies on the workpiece, so as to force the workpiece against the other die assembly. The apparatus is equipped with a hydraulic power supply device (72, 100, 117, 272)  far delivering a pressurized fluid to the hydraulic cylinders  (54).  The  power  supply  device  is  capable  of changing an initial hydraulic pressure (P0) of the fluid to be applied to the hydraulic cylinders before the pressing action of said die assemblies.
Patent CA-2080214-C (CA)
Title: Chassis of a device
Inventor: SCHWEGLER TIM
IPC: H05K7/14
Filed: 1992-10-08
Granted: 1997-06-03
Abstract: A chassis of a device, for example an electronic device, comprises a support unit (1,2) made of plastic material which carries the components of the device such as printed circuit boards (26,35), data storage disk (28), ventilator (31),loudspeaker (33). The components are held in place in corresponding recesses of the chassis (1) by a form-locking connection with the plastic material. The components are carried by the chassis without requiring any fastening elements. For assembling the device, the components are inserted into lower part (1) of the chassis, thereafter, the upper part (2) is positioned on top of it. The chassis (1,2) can be enclosed in a metal enclosure. The chassis is preferably manufactured by a plastic moulding process. Ventilation ducts can be provided in the plastic material (1,2) to ensure cooling of the components.
Patent CA-2080217-C (CA)
Title: Mine boring machine
Inventor: KRUECKL EDWARD
IPC: E21C27/12
Filed: 1992-10-08
Granted: 1997-12-23
Abstract: A continuous mining machine has a cutter frame with two rotary boring heads mounted on this frame for rotation about axes extending longitudinally of the machine.   Each boring head has a plurality of radially extending rotor arms which carry and support cutter bits on the front thereof.  A pair of reciprocating pole devices are mounted in each of the rotor arms for movement in the radial direction of the arm.   A number  of  link members  are  each pivotally connected  at opposite ends thereof to respective pair of the pole devices and additional cutter bits are mounted on the link members.          There is also a cam mechanism for reciprocating each pair of pole devices as the boring heads are  rotated.   The cam mechanism causes each pair of pole devices to be pushed radially outwardly at each of the four corners distributed about a circular hole cut by the respective boring head in such a manner that the resulting hole bored by the machine is generally rectangular.  Preferably, each pair of pole devices has rollers mounted thereon and each rotor arm has tracks mounted therein, on which the rollers run.   The preferred mining machine includes a mobile frame with a longitudinal conveyor mounted on this frame having a forwardly open throat adjacent floor level.