baber/WOPTO huggingface dataset:
Patent CA-2033838-C (CA)
Title: Plastic drying apparatus
Inventor: NAKAGOMI SHOJI
IPC: F26B3/34
Filed: 1991-01-09
Granted: 1994-02-01
Abstract: ABSTRACT A plastic drying apparatus that uses microwave heating as means of heating a plastic thereby allowing the surface as well as the inside of particles of the plastic to be heated simultaneously and therefore can attain to bring the plastic to a highly dried state within a short period of time.   A certain amount of a plastic is fed into a plastic drying tank.   While the plastic is stirred, the plastic is heated and dried uniformly by microwaves generated by a microwave generating unit.   The humidity is measured by a humidity measuring sensor and the plastic is highly dried automatically. Dried air nozzles are provided to the wall surface of the plastic drying tank for discharging air in a super-dried state in a widely flared manner so as to prevent the plastic powder, etc. from adhering.
Patent CA-2035379-C (CA)
Inventor: BORZONE ROCCO R
IPC: A61B17/56
Filed: 1991-01-31
Granted: 1995-02-14
Abstract: The cutting head 10 for a surgical reamer has a leading end 12 for insertion into a bone canal 60 and a trailing end 13 for attachment to a drive shaft 16. The cutting head has a cutting surface formed about an axis of rotation of the cutting head. The cutting surface is formed by the rotation of the cutting edges on a plurality of flutes 20 spaced around the axis of rotation. Each cutting edge has a first portion 26 spaced a predetermined radial distance from the axis of rotation at the tip portion 22 and terminates at a terminating point 30 which is at a greater radial distance from the axis of rotation than the starting point 28. The cutting edge on each flute 20 has a second portion 32 having a starting point 34 at the trailing end 24 of the cutting head 10 which is at a second predetermined radial distance from the axis of rotation. The second portion 32 extends axially towards the tip portion 22 and terminates at a point 36 at a greater radial distance from the axis of rotation than the starting point 34 thereof. A third curved portion 38 starts at the terminating point 30 of the first portion 26 and terminates at the terminating point 36 of the second portion 32 and inter-sects the first and second portions tangentially.
Patent CA-2037774-C (CA)
Title: Process for the production of cycloolefin-based random copolymer
Inventor: SAGANE TOSHIHIRO
IPC: C08F4/60
Filed: 1991-03-07
Granted: 1997-04-01
Abstract: A process for the production of a cycloolefin-based random copolymer, which comprises:          (A) copolymerizing (a) ethylene and (b) at least one cycloolefin, (B) in the presence of a catalyst comprising a  vanadium compound soluble in a mixed solvent described below and an organoaluminum compound.          (C) in a mixed solvent comprising (a) a hydrocarbon-based solvent having a solubility parameter (.delta. value) of not less than 7.7 (cal/cm3)1/2 and (b) a hydrocarbon-based solvent having a solubility parameter (.delta. value) of not more than 7.5 (cal/cm3)1/2, the mixed solvent having a volume ratio (a)/(b) of 90/10 to 50/50.  The said process permits the production of a copolymer in a higher concentration when copolymers having an identical molecular weight to that of conventional copolymers are produced, and permits the production of a copolymer having a higher molecular weight when copolymers are produced in an identical concentration to that of conventional copolymers.
Patent CA-2038768-C (CA)
Title: Non-resealable dispenser cap construction
Inventor: STULL GENE
IPC: B65D47/12
Filed: 1991-03-21
Granted: 1998-01-06
Abstract: The invention relates to a non-resealable dispenser cap construction having an elongate tapered, stepped hollow spout member with an exterior shoulder intermediate its ends, and a discharge orifice. A closure cap member having a transverse closure wall is mounted on the spout member with the wall engaging and closing over the discharge orifice. For such condition the closure wall is distorted and biased by engagement with the wall of the orifice. One of the members is formed with two opposite frangible tabs which overlie and are permanently attached to the other member. Each tab has a zone of weakness which ruptures under opposing rotative forces applied to the members. Removal of the cap member exposes the orifice. Re-sealing of the cap member on the spout member is prevented by a lack of retentive cooperable parts on the members.
Patent CA-2046216-C (CA)
Title: Coating composition for glass containers
Inventor: SHIBATA MASATOSHI
IPC: C03C17/28
Filed: 1991-07-04
Granted: 1999-06-29
Abstract: A coating composition for glass containers containing medium chain fatty acid triglyceride, medium chain fatty acid triglyceride and/or long chain unsaturated triglyceride and squalane, or (a) at least one selected from medium chain fatty acid triglyceride, long chain unsaturated triglyceride and liquid paraffin and (b) fatty acid isopropyl as essential ingredient(s).
Patent CA-2055096-C (CA)
Title: Removable file programming unit
Inventor: WARREN EDWARD L
IPC: G05B19/02
Filed: 1991-11-07
Granted: 1996-09-03
Abstract: A removable programming unit (11) is connectable to a controller (40) of an electronic locking system (12) of a storage assembly (14) via a telephone cord (38).  The removable programming unit (11) comprises a display (52) and a keyboard (54). Through the removable programming unit (11):  new access codes used to gain access to the storage assembly (14) may be programmed into the electronic lock; existing access codes may be modified as to which storage units (18) may be accessed; or existing access codes may be deleted.  All existing access codes are stored in the memory (92) of the controller (40).  The removable programming unit (11) receives 12 V DC from the connection to the electronic lock (12) via an individual wire of the telephone cord (38).
Patent CA-2061858-C (CA)
Title: Raster position adjusting circuit
Inventor: YAMATE KAZUNORI
IPC: G09G1/04
Filed: 1992-02-26
Granted: 1997-02-11
Abstract: A raster position adjusting circuit for controlling the raster position on a CRT, the circuit being equipped with a constant-current supply source and a voltage-controlled type current supply source which are coupled to each other. The drawing current of the voltage-controlled type current supply source is arranged to be controllable in accordance with the output voltage from a digital-to-analog converter, thereby controlling the emitter-base voltages of first and second transistors connected to a junction point between both the current supply sources. This control of the emitter-base voltages of the first and second transistors allows the control of the direction and value of a current flowing through a horizontal deflecting coil, thereby effecting the raster position adjustment.
Patent CA-2065729-C (CA)
Title: Hemostatic clip holder
Inventor: PEIFFER JAMES E
IPC: A61B17/122
Filed: 1990-09-14
Granted: 2001-04-24
Abstract: Disclosed is a cartridge (10) having a plurality of compartments (14) for holding preformed hemostatic clips (30). Each compartment (14) is dimensioned wide enough to hold a clip (30) and to allow a clip applicator (16) to be inserted without deforming the walls (46) of the compartment (14). Each compartment (14) has a center post or pedestal (50), smaller than the inside dimension of a clip (30), that loosely supports a clip (30).       Centering protrusions (44A, 44B) are positioned symmetrically along the sides of the pedestal (50) and along the walls (4t) of the compartment to help center the clip (30) within the compartment (14). Each clip (30) is held in place by two fingers (20) that extend into the ends of the compartment (14) and contact the clip (30) to positively retain the clip (30) at all times. A "V" shaped groove (70) is formed into the end of each finger (20), which helps hold the clip (30) in the center of the compartment (14).
Patent CA-2068456-C (CA)
Title: Optical system for focusing a light beam on to an image plane
Inventor: KARPOL AVNER
IPC: G02B6/42
Filed: 1992-05-12
Granted: 2001-10-23
Abstract: An optical system for focusing a light beam on to an image plane particularly suited for compensating for manufacturing tolerances associated with laser diodes having variable divergence and astigmatism characteristics. The system comprises a collimation lens for collimating the light beam so as to produce a collimated beam in a first direction and an optical shaper having an axis perpendicular to the first direction for correcting distortions associated with the collimated beam and spatially displaced from the collimation lens so as to form the collimated beam on to the image plane. Preferably, the optical shaper includes a pair of cylindrical lenses separated from each other a predetermined distance so as to minimize astigmatism and divergence of the beam. In use, the optical system is adjusted by displacing the collimating lens from the light source so as to produce a collimated beam of light, adjusting the distance between the cylindrical lenses so as to derive a shaped beam having minimal astigmatism and divergence, and adjusting the distance between the collimating lens and the optical shaper so as to focus the shaped beam on to the image plane.
Patent CA-2068953-C (CA)
Title: Synchronizing two processors as an integral part of fault detection
Inventor: MCDONALD KEITH M
IPC: G06F11/16
Filed: 1992-05-19
Granted: 2001-03-13
Abstract: A central processing unit arrangement for detecting a fault in a central processing unit system that includes a master processor and a slave processor.      Master and slave processors are resynchronized at every bus cycle by conditioning the processors' READY signal with the ADS (address status) signals from each processor (ADS indicates that an access cycle has begun and a valid address is present on the address bus). This method of synchronization was selected over the more traditional method of lock-step, which was deemed impractical to implement given the timing constraints of a high speed bus. Also, the dual processors may not always begin their respective bus cycles on the same clock. In addition, it is necessary to synchronize processors for the first instruction fetch following a reset, because the time of completion of an internal self-test may not be deterministic. After both ADS signals are received, the status of the master and slave buses are compared and a fault is detected if the buses are different. If a predetermined amount of time passes before both ADS signals are received then the processors are signaled to continue with the cycle.      Because the processors are no longer synchronized, the buses will miscompare, thereby detecting a fault.       Additional fault detection measures can be taken such as parity, checksum and EDAC.
Patent CA-2072247-C (CA)
Title: Optical integrated circuitry
Inventor: LEVI ANTHONY FREDRIC JOHN
IPC: H01S5/183
Filed: 1992-06-24
Granted: 1997-03-25
Abstract: Optical integrated circuitry, performing various  of the functions associated with electronic integrated circuitry, is described. Fabrication, importantly to achieve high circuit chip density - typically in the range of 106 as including both devices and interconnecting guides - is dependent upon device/spacing dimension miniaturization resulting from fabrication in very thin layers. Typical layer thickness as retained in fabricated devices and guides, of a maximum of the order of a 1/2 wavelength for relevant photon flux, results in limitation in cross-talk to permit device design rules of one or a few wavelengths.
Patent CA-2073815-C (CA)
Title: Absorbent articles, especially catamenials, having improved fluid directionality, comfort and fit
Inventor: THOMPSON HUGH ANSLEY
IPC: D01D5/253
Filed: 1992-07-14
Granted: 1998-05-05
Abstract: Absorbent  articles,  especially  sanitary  napkins,  contain fibers with intra-fiber capillary channels.  In-use, the capillary channel fibers direct menses to a storage layer, thereby minimizing product failure and staining of undergarments.  The capillary channel  fibers  can  protrude  into,  or  through,  a  topsheet  to provide very aggressive transport of vaginal discharges.
Patent CA-2078038-C (CA)
Inventor: ISHII DAISUKE
IPC: H04B17/00
Filed: 1992-09-11
Granted: 1996-09-24
Abstract: A radio communication apparatus is tested by radio and optical test signals (RTS and OTS) simultaneously transmitted by a test transmitter.  Each test signal carries a test digital data signal.  The apparatus has a radio digital data recovering section for recovering the test digital data signal as a first digital data signal from the radio test signal.  An optical digital data recovering section recovers the test digital data signal as a second digital data signal from the optical test signal.  A comparing section produces a bit coincidence signal whenever corresponding bits between the first and the second digital data signals coincides with each other.  A counter counts up a count to an increased count in response to the bit coincidence signal during a predetermined time interval.  An indicator indicates the increased count as sensitivity of the apparatus.
Patent CA-2082838-C (CA)
Inventor: DARDEN BRUCE VAIDEN
IPC: G02B6/40
Filed: 1992-11-13
Granted: 1998-08-18
Abstract: A single optical fiber hermaphroditic connector includes a ferrule or plug of a subassembly which terminates an optical fiber of a cable and an end of which is received in a cavity of a housing. Furcations of a bifurcated member extend beyond a free end of the ferrule. An end of the housing is supported from one free end of a tubular member such that a compression spring disposed about the housing causes the ferrule to be biased outwardly. An opposite end of the tubular member is connected to a bushing and tapered plug arrangement which is effective to transfer forces from strength members of the cable to the connector to prevent the forces from being applied to the connection. The subassembly is received in a sleeve having a small diameter threaded end adjacent to the force transfer arrangement and an enlarged diameter, externally threaded end which encloses the housing and the bifurcated member. A coupling nut having an internally threaded end is disposed about the sleeve and is adapted to receive a free end of another single fiber hermaphroditic connector such that the internally threaded free end of the coupling nut is turned into engagement with the externally threaded enlarged end of the sleeve of the other connector to hold together the connectors.
Patent CA-2086035-C (CA)
Title: Small-diameter superelastic wire guide
Inventor: HALL TODD
IPC: A61B5/00
Filed: 1992-12-22
Granted: 1995-12-26
Abstract: A small diameter wire guide for medical procedures.  The wire guide includes a mandrel of metallic superelastic material, such as nitinol, having a diameter less than 0.020 inches and which completes its transformation to austenite at a temperature of about 14°C.  The marldrel llas a collstant diameter over a majority of its length and includes a number of tapered portions and reduced-diameter portions in its distal region.  A flexible radiopaque platinum coil is attached at the distal region of the mandrel and coaxially surrounds a portion of the distal region.  A smoothly rounded tip is attached to the distal tip of the mandrel and coil and serves to shield the distal end of the coil during the insertion procedure into the patient.
Patent CA-2092256-C (CA)
Title: Finite particle removal system
Inventor: BARRINGTON BARRY L
IPC: B01D35/06
Filed: 1993-03-23
Granted: 2001-05-29
Abstract: A fluid filter is designed primarily--but not exclusively--to filter spent fluids which may contain particulate contaminants. The filter has an assembly which may be slid into or out of a canister housing for manufacture, repair, or replacement. The assembly is a stack of porous filter media separated by perforated metal plates. The metal plates may be arranged in sets, comprising positive and negative electrostatic plates followed by magnetic plates.      Or, the metal plates may be arranged in a sequence tailored for the electrical conductivity of a given fluid. A pair of rod electrodes are threaded through holes in the various plates and porous filter media. One rod electrode is connected to all positive plates. The other rod electrode is connected to all negative electrostatic plates.
Patent CA-2095937-C (CA)
Title: Sealing assembly for rotary oil pumps and method of using same
Inventor: GRENKE EDWARD
IPC: E21B33/08
Filed: 1993-05-11
Granted: 1998-12-22
Abstract: An assembly for restraining oil leakage in a rotary oil well pump includes a stationary member and a rotary member. The rotary member is secured to the rotating rod and is sealed against the rod by conventional compressed packing. The rotary member has a cylindrical portion rotating within a cylindrical recess of the stationary member, with an annular recess defined between them. The recess contains two or more annular seal cartridges stacked one after the other in the annular space. The cartridges are designed to individually resist the ingress of the pressurized oil, so that leakage takes place sequentially past the individual cartridges. Leak passages are provided in the stationary member and are in communication with each of the cartridges respectively.  When oil appears at anygiven leak passage, this signifies that the oil has bridged the defences of thatcartridge and any cartridge or cartridges which are upstream of the leaking cartridge.
Patent CA-2102851-C (CA)
Title: Body scanning system
Inventor: HAMMOND DAVID JAMES
IPC: H05G1/00
Filed: 1993-11-10
Granted: 2004-05-25
Abstract: The invention concerns a method and apparatus for scanning bodies, typically human bodies (12) for security or medical purposes. In the method, the body (12) is scanned with a beam (20) of X-radiation of sufficiently low intensity that no physiological damage is suffered. The X-radiation transmitted by the body (12) is then converted into an optical image. The optical image is intensified and converted into an electronic image. The electronic image is manipulated to produce a scanned image of the body or a portion of the body. The scanned image is typically a video image.
Patent CA-2110334-C (CA)
Title: Apparatus for recording and reproducing a digital video and audio signal
Inventor: OGURO MASAKI
IPC: H04N7/24
Filed: 1993-11-30
Granted: 2002-02-19
Abstract: Digital video tape recorder for recording and reproducing digital video and audio data in respective tracks in a predetermined format on a record medium. The predetermined format having respective video, audio and subcode areas with each area having a number of sync blocks comprised of a data area in which video, audio and system data, respectively, are recorded.   These areas are preceded by a fixed area in which sync block identifying information is recorded. The data area of the subcode area is formed of data packs having a common pack structure and system data provides for automatic control during reproduction and for identifying the recorded digital video and audits data.
Patent CA-2112158-C (CA)
Inventor: CHEO BERNARD RU-SHAO
IPC: H05H9/00
Filed: 1993-12-22
Granted: 2003-10-14
Abstract: An active RF cavity is defined by a conductive wall in which a plurality of stolid state power amplifiers are mounted. The solid state power amplifiers induce an RF current at an inner surface of the wall to form an oscillating electromagnetic (EM) field within the cavity.      Preferably, the power amplifiers are in tha form of modules that contain a number of RF power chips. The structure operates as both a power combiner and a matching transformer and is powered by a relatively low voltage d.c. source. A high-amplitude field is generated using equipment that is more efficient and much lighter in weight than conventional equipment. Such a cavity may be applied in a drift tube linac, an RF quadrupole linac, a linac having aligned cavities, and in other types of particle accelerators, and as a high power RF amplifier with the EM waves piped out via a waveguide or a coaxial cable.
Patent CA-2113002-C (CA)
Title: Ventilating arrangement for a shoe and method
Inventor: CHENG PETER S C
IPC: A43B7/08
Filed: 1994-01-05
Granted: 1996-06-11
Abstract: A shoe is efficiently ventilated by forcing a low volume of primary air through a plurality of throttle orifices at high velocity downstream of a passage formed in a sole.  A low pressure area is created within the passage.   A high volume of stale secondary air from the shoe interior is accelerated into the low pressure area.  The secondary air is entrained by the primary air and together form a combined jet-like air stream that is forcefully ejected from the shoe.
Patent CA-2113268-C (CA)
Title: Measuring molecular change in the ocular lens
Inventor: EPPSTEIN JONATHAN A
IPC: A61B5/00
Filed: 1992-07-16
Granted: 1999-01-12
Abstract: Apparatus and methods for noninvasively diagnosing diabetes mellitus, the prediabetic condition, cataracts, and other diseases in the human (or other) body are disclosed. Diagnoses are made by illuminating ocular lens (L) or other tissue with a narrowband light source (15) at a selected wavelength, separating the backscattered radiation into fluorescent and Rayleigh components (55, 135), detecting (85) the backscattered radiation intensity at the peak of the fluorescent response, and normalizing the detected value with the detected intensity of its Rayleigh component. Measurements provided in this manner can be used as improved indicators of the presence or absence of certain diseases or conditions.
Patent CA-2119401-C (CA)
Inventor: THOME GARY W
IPC: G06F9/38
Filed: 1994-03-18
Granted: 1998-09-15
Abstract: A memory controller which makes  maximum use of any processor pipelining and runs a large number of cycles concurrently.  The memory controller can utilize different speed memory devices at their desired optimal speeds.  The functions are performed by a plurality of simple, interdependent state machines, each responsible for one small portion of the overall operation.  As each state machine reaches has completed its function, it notifies a related state machine that it can now proceed and proceeds to wait for its next start or proceed indication.  The next state machine operates in a similar fashion.  The state machines responsible for the earlier portions of a cycle have started their tasks on the next cycle before the state machines responsible for the later portions of the cycle have completed their tasks.  The memory controller is logically organized as three main blocks, a front end block, a memory block and a host block, each being responsible for interactions with its related bus and components and interacting with the various other blocks for handshaking.  The memory controller operates in system management mode to override any write protect status of memory so that the SMRAM can be located in the main memory space and be write protected during normal operations but be full usable during system management mode.
Patent CA-2121515-C (CA)
Inventor: WHITESIDE JOHN F
IPC: F16K21/16
Filed: 1994-04-18
Granted: 1999-01-26
Abstract: A flush valve for use with toilet devices such as urinals and water closets includes a body having an inlet and an outlet.  There is a valve seat between the inlet and outlet and a barrel connects the valve seat with the outlet.  A diaphragm assembly is positioned within the flush valve and movable toward and away from a closing position on the valve seat to control the flow of water to the outlet.  The diaphragm assembly includes a diaphragm peripherally clamped within the flush valve housing and a refill ring extending downstream from the diaphragm.  The refill ring has a plurality of circumferentially disposed passages connecting the inlet and outlet when the diaphragm assembly is away from the valve seat.  The size of the passages in the refill ring determines the volume of water flow during operation of the flush valve.