baber/WOPTO huggingface dataset:
Patent CA-2070712-C (CA)
Title: Self calibrating pulse width modulator
Inventor: GIRMAY GIRMAY K
IPC: H03M1/82
Filed: 1992-06-08
Granted: 1999-04-20
Abstract: A circuit for producing an exact duty cycle for a system having a variable system clock frequency. In the calibrate phase, a waveshape with an exact duty cycle is made by ANDing two or more clock pulse trains, each of which is a multiple of the system clock frequency.  This is compared against the output of a current-controlled pulse width modulator (PWM) which is programmed to produce the same duty cycle. The polarity of the comparator output as a result of the error between the exact duty cycle and the one produced by the modulator increments or decrements a counter, the output of which controls a digital-to-analog converter (DAC), which in turn corrects the output of the modulator.  After a suitable number of interactions, the modulator, which is not calibrated, will reproduce the exact duty cycle.  The circuit is then put into the operate mode by disabling the counter, and programming the pulse width modulator to output the desired system duty cycle.  The circuit may be used anywhere that a pulse width modulator exists in a digital system and must be calibrated accurately.  It may be used in a laser printer, for example.
Patent CA-2071248-C (CA)
Title: Composition containing dioxabicyclo-[3.3.0]octane derivative
Inventor: NAKABAYASHI AYAKO
IPC: A23L29/00
Filed: 1992-06-15
Granted: 2005-07-19
Abstract: A food, drink, pharmaceutical, cosmetic composition or food additive comprising a dioxabicyclo[3.3.0]octane derivative represented by the following general formula (I): (see formula I) wherein R1, R2, R3, R4, R5 and R6 independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, or R1 and R2 and/or R4 and R5 together form a methylene group or an ethylene group, and n, m and ~ are 0 or 1; and antioxidant.
Patent CA-2071954-C (CA)
Title: Matrix with adherently bound cells and process for producing viruses/virus antigens
Inventor: MUNDT WOLFGANG
IPC: A61K35/76
Filed: 1990-12-21
Granted: 1996-06-18
Abstract: A matrix or substrate bears adherently bound human or animal cells infected with a virus. It has been shown that surface dependent cells useful for virus multiplication remain adherently bound to a matrix even when infected with a virus, produce vi-rus antigens over a relatively long period of time and release them in the culture medium. In order to produce early Summer men-ingo-encephalitis (FSME) virus antigens by cultivating the FSME virus in cell cultures, a surface dependent permanent cell line, preferably the vero-cell line ATTC CCL 81, is inoculated with the FSME virus and the cells are bound to substrates and kept in a non lytic serum free system in conditions that ensure cellular growth, so that antigens are produced. The antigen-containing medi-um is then separated from the substrate bound cells and processed in a known manner by concentration, inactivation and purifi-cation until a galenically acceptable is obtained.
Patent CA-2072849-C (CA)
Inventor: DAMITZ WAYNE A
IPC: E01F15/04
Filed: 1992-06-30
Granted: 1999-05-04
Abstract: The guardrail assembly includes at least one tubular metal stanchion, having a base and an axtendable/retractable setscrew, and at least a horizontal top rail.  The horizontal top rail has an inner metal pipe, an outer plastic pipe, and at least one aperture for receiving the metal stanchion.  Prior to assemblage, the setscrew is retracted inside the tubular stanchion.  Prior to insertion of the stanchion into the aperture, at least one tubular plastic sheath, having a first end conforming with the base of the stanchion and a second end conforming with the top horizontal rail, is slipped onto the tubular metal stanchion.  Following placement of the top horizontal rail atop the stanchion, the sheath rests on the base of the stanchion and engages the top horizontal rail.  The top of the stanchion or the sheath are capable of supporting the top horizontal rail.  The top horizontal rail is locked in position atop the stanchion by extension of the setscrew.          Disassemblage of the guardrail assembly is facilitated by the easily retracted setscrew.
Patent CA-2076486-C (CA)
Title: Fast change set-up device for work on work support
Inventor: CAYLEY MICHAEL P JR
IPC: B23Q1/00
Filed: 1992-08-20
Granted: 1996-07-02
Abstract: A fast change set-up device for work on work supports wherein work blanks can be mouinted to a number of work supports prior to machining and the upper work support can be quickly attached to a lower work support and locked thereto by rotating a handle so that the next piece can be machined.          The shaft carries four cams for driving spring biased bolts which engage in grooves formed in locking pins and the cams have an indentation for locking the bolts in the grooves to hold the upper and lower work supports together so that machining can occur.  After machining the upper work support can be removed from the lower work support and a second upper work support can be mounted to machine another workpiece.
Patent CA-2081737-C (CA)
Inventor: LITTLE JOHN PHILLIP
IPC: G16H70/20
Filed: 1992-10-29
Granted: 2003-03-04
Abstract: A computerized expert system reviews and adjudicates medical health care payment requests made by physicians to payers, such as insurers, for procedures performed and services and materials rendered to patients in the course of treatment. The system adjudicates a payment request to minimize fraud and mistakes and to determine whether to honor the request and if the request is honored, the dollar amount of the payment. The expert system reviews the payment request based on user-specified review criteria. Such criteria reflects contractual arrangements between payers, providers and patients, current, locally acceptable medical practices and patient and provider payment request patterns.      To perform the review, the expert system obtains relevant prior payment requests as necessary according to the user's pre-determined review criteria;  defines a master list of payable payment requests given current medical procedures, the pre-determined parameters of the review and specific contractual arrangements between the payer, patient and health care provider; analyses the current payment request according to the relevant historical payment requests and the master payable list by applying user-defined interpretive rules to this information; and develops and reports payment decisions based on that analysis.
Patent CA-2088284-C (CA)
Title: Structural assembly
Inventor: BARDO CHARLES J
IPC: F28F25/00
Filed: 1993-01-28
Granted: 1995-09-19
Abstract: The present invention provides a structural assembly that includes at least four vertically extending columns which form corners of the structural assembly.  Wall panels extend between adjacent columns, with at least two wall panels vertically stacked and connected to each other, to form a structural wall assembly between adjacent columns.  The ends of each of the wall panels are attached to flanges that extend from each of the columns.  A structural column is provided in the center of the structure and braces extend from each of the corner columns to the riser.  Beams also extend from the central riser outwardly to certain of the wall panels, usually connecting to the wall panels at a location equidistant between the columns.  A roof structure is provided, the edges of which are received in spaces in certain of the top wall panels.  In a cooling tower application of the present invention, a fan assembly is supported on the top of the central column water inlet riser and includes a fan shroud supported by the roof.
Patent CA-2091923-C (CA)
Title: Swivel head cap connector
Inventor: ROBERTSON GEORGE WILSON
IPC: B63B22/04
Filed: 1993-03-18
Granted: 2000-05-23
Abstract: A swivel head cap assembly can be threadedly attached to an empty plastic pop bottle to create a float or buoy. The assembly includes a cap that is attachable to the bottle, the cap including an annular collar spaced from the cap by a pair of integrally moulded legs. A separate eyebolt member has an annular eyebolt portion and a shaft portion extending radially therefrom, the shaft portion being receivable in the collar of the cap. A separate securing member is provided to prevent unwanted disconnection of the eyebolt member from the cap. The eyebolt member can rotate or swivel relative to the cap and a rope or chain can be connected at one end to the eyebolt portion and at the other end to a net or other underwater structure.  Bottles that would otherwise be destined for the garbage pile or landfill site can be utilized with the invention to provide inexpensive, easily replaced, floats or buoys for any number of marine applications.
Patent CA-2097310-C (CA)
Inventor: PERRY MICHAEL R
IPC: B65D81/34
Filed: 1991-09-30
Granted: 1999-02-16
Abstract: A susceptor structure (30) includes a substrate (38) having a first side an a second side. A first microwave interactive layer (40) is located on the first side of the substrate (38). A covering layer (44) is coupled to the first microwave interactive layer (40). The first microwave interactive layer (40) is coupled to the covering layer (44) more firmly than to the substrate (38) during exposure of the susceptor structure (30) to microwave energy.
Patent CA-2112011-C (CA)
Title: Substituted pyridines
Inventor: ANGERBAUER ROLF
IPC: C07D405/06
Filed: 1993-12-21
Granted: 2005-07-26
Abstract: New substituted pyridines are prepared by reducing suitably substituted pyridine derivatives. The new substituted pyridines are suitable as active compounds in pharmaceuticals, in particular for the treatment of hyperlipoproteinaemia.
Patent CA-2112749-C (CA)
Title: A composition of matter for coating a press roll
Inventor: MCCARTEN PAUL
IPC: D21F3/08
Filed: 1992-06-10
Granted: 1996-07-09
Abstract: A composition of matter is disclosed for coating a press roll (10A). The composition (18) defines a roll surface (16A) for contacting a web (WA) of paper extending past the press roll (10A).  The press roll (10A) is a replacement for a natural granite press roll.  The composition (18) includes an aluminosilicate and an alkaline-earth metal oxide.
Patent CA-2116165-C (CA)
Title: Substituted benzenesulfonylureas and -thioureas - processes for their preparation and their use as pharmaceuticals
Inventor: ENGLERT HEINRICH
IPC: C07C311/46
Filed: 1994-02-22
Granted: 2006-02-21
Abstract: Benzenesulfonylureas and -thioureas of the formula I   (see formula I) where R(1) is H or (fluoro)methyl, R(2) is H, Hal or (fluoro) (mercapto) alk (oxy)yl. E is O or S; Y is -[CR(3)2]n-, where R(3) = H or alkyl and n = 1 - 4, X is H, Hal or alkyl and Z is Hal, NO2 or alk(yl)oxy, are described. The compounds I are used for treatment of disturbances in cardiac rhythm and prevention of sudden cardiac death caused by arrhythmia, and can therefore be used as antiarrhythmics. They are particularly suitable for those cases where arrhythmias are a consequence of a narrowing of a coronary vessel, such as angina pectoris or acute cardiac infarction.
Patent CA-2126926-C (CA)
Title: Modem with firmware upgrade feature
Inventor: JOHNSON GREG
IPC: G06F11/00
Filed: 1994-06-28
Granted: 1999-05-25
Abstract: Updated operating code and parameters can be reprogrammed into a modem system with no disassembly of the modem hardware.  The modem system includes an in-circuit reprogrammable memory chip in which operating code and parameters are stored.  Two control programs control the reprogramming of updated operating code.  One of the control programs is designed for manufacturing and testing purposes.  The other control program allows remote reprogramming of updated operating code or parameters from a remote location such as a customer site.  The modem system is portable, obtaining power from a standard 9 volt battery.  Therefor, various power saving features are also incorporated into the modem system.
Patent CA-2128413-C (CA)
Inventor: WALT DAVID R
IPC: G01N21/77
Filed: 1993-11-15
Granted: 2007-04-03
Abstract: The present invention provides a unique fiber optic sensor which is able to provide a viewing zone (S14, S18-S24, S39-S46, S51-S58, S63-S70, S75-S82, S89-S96, S100-S106) for visual examination of a sample and its surrounding environment; and is able to conduct multiple assays concurrently using a plurality of different dyes (250, 252, 254, 256) immobilized at individual spatial positions within a dye sensing zone (260A-260D) on the surface of the sensor. The present invention also provides apparatus for making precise optical determinations and measurements for multiple analytes of interest concurrently and provides methods of detection for multiple analytes of interest which can be correlated with specific parameters or other ligands for specific applications and purposes.
Patent CA-2130026-C (CA)
Inventor: PRITCHARD ROBERT W
IPC: A61M3/02
Filed: 1994-08-12
Granted: 2004-10-05
Abstract: A douche nozzle has an internal baffle member. for regulating the flow of liquid exiting the nozzle. The nozzle may be provided with spaced apart grooves on its exterior surface extending from the distal end of the nozzle to and across an internally threaded open base.
Patent CA-2135205-C (CA)
Title: Modified fat blends
Inventor: PERLMAN DANIEL
IPC: A23D7/00
Filed: 1993-05-07
Granted: 2003-12-23
Abstract: Blended cholesterol-reduced animal fat and vegetable oil which are combined in a proportion such that the weight ratio of linoleic acid (18:2) content divided by myristic acid (14:2) content is between 2 and 9 inclusive. In addition, cholesterol-reduced animal fat can be blended with cholesterol-reduced fish oil to stabilize the fish oil against air-oxidation at room temperature.
Patent CA-2136128-C (CA)
Inventor: YAMANO KATSUMI
IPC: A63B53/04
Filed: 1994-11-17
Granted: 1997-11-18
Abstract: A golf club head is formed of an alloy steel which comprises at most 0.2 wt.% of C, 0.05-1.0 wt.% of Si, at most 0.5 wt.% of Mn, 3.0-8.0 wt.% of Ni, 10.0-20.0 wt.% of Cr, 3.0-8.0 wt.% of Mo and 10.0-20.0 wt.% of Co, the remainder being substantially Fe, and has a metallic texture composed principally of martensite.
Patent CA-2136359-C (CA)
Title: Method and apparatus for manufacturing paint roller and product produced thereby
Inventor: BARTON WILLIAM W
IPC: B29C53/58
Filed: 1994-11-22
Granted: 2002-11-12
Abstract: The invention consists of bonding a strip of pile fabric to a plastic tube which is mounted over a mandrel, by an adhesive substance. The adhesive substance may take many forms, and heat derived from a multitude of heat sources, such as infra red, radio frequency, open flame, quartz, induction, ultrasonic or a plasma jet may be used to ensure a good bond between the plastic tube and the pile fabric.
Patent CA-2137974-C (CA)
Title: Patient-operated orthopedic device
Inventor: RICHARDSON JAMES BRUCE
IPC: A61B17/60
Filed: 1994-12-13
Granted: 2005-05-10
Abstract: The invention serves patients having a fractured bone wherein separate parts of the bone have been immobilized by an external axial fixator, and the invention provides patient-operated mechanical structure to enable him to transiently distract spaced bone-anchored regions of the fixator. In one embodiment, the patient-operated mechanism is in the form of an accessory that is detachably mounted to the fixator; in another embodiment, the patient-operated mechanism is embodied in an external axial fixator, preferably of the so-called dynamic variety.
Patent CA-2142368-C (CA)
Title: Advisory method
Inventor: COLEY JOHN
IPC: G01N33/76
Filed: 1993-08-10
Granted: 2006-01-24
Abstract: A method and test kit for providing contraceptive advice during the human ovulation cycle, involving simply the measurement of urinary lutenising hormone (LH) concentration on a daily basis during the early phase of the cycle until the LH surge indicative of ovulation is detected, together with calender means to advise the user to abstain from unprotected intercourse during a time interval commencing not later than a predetermined first day of LH  testing and ending at least 2 days following the day of LH surge detection.
Patent CA-2142537-C (CA)
Inventor: BURKHART GEORG
IPC: C08G77/46
Filed: 1995-02-15
Granted: 2000-11-07
Abstract: The invention relates to polysiloxanes with (1) at least two polyether groups A and B; polyoxyalkylene group A, with an average molecular weight of 600 to 5,500, consisting of 20 to 100% by weight of oxyethylene units and of 80 to 0% by weight of oxypropylene units, and polyoxyalkylene group B, with an average molecular weight of 700 to 5,000, consisting of 0 to < 20% by weight of oxyethylene units and of 100 to 80% by weight of oxypropylene units, and with (2) hydrocarbon groups with 6 to 30 carbon atoms, linked to silicon. The invention further relates to the synthesis of these polysiloxanes and their use as additives for hair cosmetics, particularly as additives for hair shampoos to improve the handle and the combability of the hair.
Patent CA-2143195-C (CA)
Title: Arrangement designed to be a part of an equipment for cleaning different objects in a food processing plant
Inventor: LOFDAL JAN
IPC: B08B9/08
Filed: 1993-08-27
Granted: 2002-06-25
Abstract: The invention relates to an equipment for cleaning of different objects such as tanks, pipeline systems etc. in a plant for treatment of food, in which equipment there is an arrangement comprising means for conveying a liquid. This means is arranged to convey a variable controlled amount of liquid with a variable controlled flow rate. In series with this means there is a volume and/or flow rate metering means and a control means connected to the volume and/or flow rate metering means and receiving signals from the same. The control means is arranged to actuate the means for conveying liquid in dependence of this signal such that the desired amount of liquid is conveyed with a desired flow rate. The conveying means mentioned above and the volume and/or flow rate metering means are arranged in a conduit for supplying rinsing or cleaning liquid to one or several objects which are to be cleaned.
Patent CA-2149696-C (CA)
Inventor: RITT PETER MICHAEL
IPC: G03G13/22
Filed: 1995-05-18
Granted: 2000-11-28
Abstract: A method of electrophotographically manufacturing a luminescent screen assembly on a photoreceptor disposed on an interior surface of a faceplate panel for a color CRT includes the steps of: charging the photoreceptor to establish a substantially uniform electrostatic voltage thereon; positioning the panel on an exposure device having a light source therein; exposing selected areas of the photoreceptor to visible light from the light source to affect the voltage thereon, without affecting the voltage on the unexposed area of the photoreceptor, and depositing a triboelectrically charged, first color-emitting phosphor onto the selected areas of the photoreceptor. The charging, positioning, exposing and depositing steps are repeated for a second and a thirdtriboelectritcally charged, color-emitting phosphor. The present method is an improvement over prior methods because, after each of the phosphor deposition and panel recharging steps, the light source is offset in the exposure device by an amount determined by the voltage difference between the photoreceptor and the phosphor, or phosphors, previously deposited onto the panel, thereby counteracting the repulsive effect of the previously deposited phosphor and minimizing the misregister of subsequently deposited phosphors.
Patent CA-2149842-C (CA)
Title: Backpack for heavy bulky footwear
Inventor: KLIOT EUGENE
IPC: A45C3/12
Filed: 1995-05-19
Granted: 2002-12-17
Abstract: A backpack for carrying bulky, heavy footwear such as inline skates, conventional roller skates, ice skates or ski boots is provided.  Preferably, a backpack for carrying inline skates is provided.  According to the invention, the backpack includes a left and right opposed trapezoidal compartments.  These compartments have a generally rectangular back face and a narrow width.  The left and right compartments are angularly joined together at the front base portion of the compartments to form an isosceles tri-angle therebetween.  The joined right and left trapezoidal compart-ments define a portion of the front face of the backpack.   A piece of luggage material such as tight weave nylon is used to complete the front of the backpack by closing off the top of the area between the left and right trapezoidal compartments.  The left and right trapezoidal compartments are rather narrow and in fact are only wide enough to receive the narrow part of a boot or skate.          This prevents shifting of the footwear when carried.  The compart-ments have a sufficient height for receipt of the blade portion of a skate and/or of the top portion of a bulky boot, for example, a ski boot.  In addition, the compartments have a sufficient depth to receive the blade portion of a skate.
Patent CA-2156684-C (CA)
Inventor: HSIA YU CHUN
IPC: A47C27/10
Filed: 1995-08-22
Granted: 1997-12-23
Abstract: Disclosed  is  a  water  bed  having inner communicable  air chambers.  The water bed has a mattress body  formed  of  an upper and a lower sheets with an air  inlet,  a water inlet, and an air vent provided thereon.  A plurality of parallelly arranged  and  mutually communicable  long  air chambers are sealed inside the mattress body by means  of radioheating to longitudinally divide an  inner  space  of the mattress body into a plurality  of  alternate  water  passages.   The  air chambers each has an oval-shaped cross section which permits the air chambers to  change  their  shape with the amount of air filled thereinto  and  thereby permits the mattress body to  maintain  in a soft, elastic, stable condition.  The air chambers reduce the water required to fill the mattress body and thereby reduce  the  weight  of  the  mattress  body and shorten the time required to heat or cool the water bed.
Patent CA-2159180-C (CA)
Inventor: THOMAS DENNIS ALBERT
IPC: A44B18/00
Filed: 1994-03-30
Granted: 1999-03-23
Abstract: The invention is a refastenable mechanical fastening system, made of free formed prongs joined to an embossed or raised substrate (24). The prongs (22) taper and are nonperpendicularly oriented relative to the plane of the substrate. Each prong (22) has an engaging means projecting laterally from the periphery of the prong. The free formed pron gs are manufactured by the process of depositing liquid material onto the embossed or raised portion (23) of a moving substrate (24), st retching the liquid material in a direction parallel to the plane of the embossed or raised substrate and severing the stretched material to form the distal end and engaging means of the prong. The advantageous usage of the fastening system in an article of manufacture, such as a disposable absorbent garment, specifically a diaper, is also disclosed.