baber/WOPTO huggingface dataset:
Patent CA-2077899-C (CA)
Title: Digital modulation circuit
Inventor: LEMERSAL DONALD B JR
IPC: H04L27/20
Filed: 1992-03-09
Granted: 1996-03-12
Abstract: A modulator circuit for generating a modulated, DQPSK signal. The modulator circuit includes an encoder for receiving a binary bit stream comprised of bit pairs defining differential phase changes. An encoder receives a bit stream of which bit pairs thereof define differential phase changes. The encoder encodes the bit pairs into codewords which are stored and then supplied to an I-accumulator a Q-accumulator, and a memory element The memory element contains pre-multiplied values which are supplied to the I- and the Q-accumulators which add terms of the pre-multiplied values to form I-portions and Q-portions of a DQPSK-modulated signal. The I- and Q-portions of a DQPSK-modulated signal. The I- and Q- portions may then be supplied to a quadrature modulator.
Patent CA-2080912-C (CA)
Title: Method and apparatus to promote gas exchange from a sealed receptacle
Inventor: MITCHELL JERRY L
IPC: B65B31/04
Filed: 1991-04-19
Granted: 1997-12-30
Abstract: A method and apparatus is disclosed to enable the modification of the gaseous atmosphere contained around a given product housed within a sealed receptacle. More specifically, the present invention is directed to a method and apparatus for extracting, modifying or exchanging the gaseous atmosphere within a closed, sealed receptacle while preventing the collapse of said receptacle.
Patent CA-2085051-C (CA)
Inventor: VETTER GREGORY J
IPC: E05D15/30
Filed: 1992-12-10
Granted: 1996-08-13
Abstract: A hinge structure for supporting a window sash on a window frame.  The hinge structure includes sash arms se-cured to opposite sash sides, and a shaft having gears fixed to its ends and supported by tracks for longitudinal movement along opposite sides of the frame.   The gears engage racks on each of the tracks.   The sash arms are carried with the shaft in its longitudinal movement along the tracks.
Patent CA-2086643-C (CA)
Title: Oxepane isomers of rapamycin useful as immunosuppressive agents
Inventor: HUGHES PHILIP F
IPC: C12Q1/68
Filed: 1993-01-04
Granted: 2002-11-26
Abstract: A derivative of rapamycin of general formula (I) (see formula I) wherein R1 and R2 are selected from the group consisting of hydrogen, acyl, sulfonyl or alkyl or a pharmaceutically acceptable salt thereof, which is by virtue of its immunosuppressive activity is useful in treating transplantation rejection host vs. graft disease, autoimmune diseases, and diseases of inflammation.
Patent CA-2086801-C (CA)
Title: Apparatus and method for reliably detecting a depolarization activation wave of the heart and atrial defibrillator utilizing same
Inventor: ADAMS JOHN M
IPC: A61N1/39
Filed: 1993-01-06
Granted: 1998-09-29
Abstract: An atrial defibrillator reliably detects a depolarization activation wave of the heart and delivers cardioverting electrical energy to the atria of the heart in synchronism with a detected depolarization activation wave.  The atrial defibrillator includes a first sensor for producing a first electrical output having a duration substantially equal to the duration of the depolarization activation wave sensed between a first pair of spaced apart locations of the heart.  The atrial defibrillator further includes a second sensor for producing a second electrical output having a duration substantially equal to the duration of the depolarization activation wave sensed between a second pair of spaced apart locations of the heart.   The spacing between the second pair of locations is greater than the spacing between the first pair of locations. A microprocessor is responsive to the first and second electrical outputs for providing an indication  signal  indicating  the  occurrence  of  the depolarization activation wave when the second electrical output is longer in duration than the first electrical output.  A pulse generator coupled to the microprocessor applies electrical cardioverting energy to the atria of the heart in response to the indication signal.
Patent CA-2090293-C (CA)
Title: Gas line
Inventor: NAWROT SERGE
IPC: B29C48/32
Filed: 1993-02-24
Granted: 1999-01-19
Abstract: Tube, based on polyamide, for supplying petrol to engines, characterised in that it consists of an external layer of polyamide and of a internal layer of polyvinylidene fluoride joined together by an adhesive binder.
Patent CA-2091966-C (CA)
Inventor: HOLLANDER MILTON B
IPC: G09B29/04
Filed: 1993-03-18
Granted: 1998-05-19
Abstract: A sheet of flat paper or poster stock has information printed on one side in the form of separate and independent areas of discrete information units, and a large-scale poster-like pattern occupying substantially the entire available area of the opposite side surface of the sheet.  A plurality of straight crease lines are marked on one surface of the sheet, arranged to define a coordinate grid-like pattern surrounding the various discrete information units, such that the sheet may be folded conveniently along the crease lines to form a fold-out booklet having a plurality of leaves with units of information printed on each leaf, similar in nature to the pages of a book.  In one form of the invention, the crease lines are defined by a plurality of weakened sections of the poster stock material having a fold resistance that is less than the unweakened portions of the sheet, but is sufficient to withstand the forces produced by rolling the sheet into a diameter consistent with commonly available postal mailing tubes, so that the sheet may be rolled for transport and then unrolled into substantially flat, unfolded condition for display of information printed on at least one surface of the sheet in the form of a poster.
Patent CA-2092372-C (CA)
Inventor: BERNDT KLAUS W
IPC: C12M1/34
Filed: 1993-03-24
Granted: 2000-03-14
Abstract: Methods and apparatus for detecting biological activity within a sample are disclosed. The present invention provides a combination of a first and a second infrared light source arranged on the side of a sample vial, and a first and a second narrow-band infrared detector similarly arranged on the side of the vial approximately opposite the sources. The disclosed arrangement cancels the sources of error while measuring the carbon dioxide content of the headspace gas above the sample. In operation, the present invention sequentially measures the photocurrents generated at each detector with no source turned on, with the first source turned on, and with the second source turned on and the first source turned off. The CO2 absorption coefficient of the vial headspace gas is then calculated based on the photocurrents measured. This present invention allows compensation for source aging, detector aging, and vial wall thickness changes. Moreover, the present invention permits a determination of the absolute absorption coefficient at a selected wavelength, most preferably about 4.26 µm, which is the CO2 absorption characteristic wavelength. The determination of the absolute CO2 concentration within the headspace permits the detection of bacterial growth processes. Additionally, the disclosed source/detector combination can be produced at low cost. Thus, in preferred embodiments, the apparatus of the present invention comprises a plurality of vials that are simultaneously monitored by providing each of the plurality of vials with its own source/detector combination and activating and deactivating the sources and detectors using a multiplexer/demultiplexer arrangement.
Patent CA-2099343-C (CA)
Inventor: THORSON JAMES S
IPC: A21D10/00
Filed: 1993-06-28
Granted: 1998-07-14
Abstract: In a first embodiment, the present invention provides an improved finishing process for dry mixes for baked goods of widely varying compositions. According to this embodiment, a standard cake finisher is replaced with a disc mill, which yields surprisingly superior dry mix properties. In another embodiment of the invention having particular utility in dry mixes for brownies and the like, a dry, particulate premix is formed by mixing the shortening with a selected portion of the dry ingredients of the dry mix. It is preferred that no more than approximately 25% of the total flour content of the dry mix be added in this pre-mix. This pre-mix is then mixed with the rest of the ingredients of the dry mix and this final dry mix may subjected to a finishing operation such as that of the first embodiment of the invention.
Patent CA-2100785-C (CA)
Title: Guide catheter construction
Inventor: VODA JAN
IPC: A61M25/06
Filed: 1992-01-21
Granted: 1999-09-14
Abstract: A catheter (36) for insertion into an artery of a cardiovascular system including a first straight portion (38) extending from the proximal end of the catheter for a distance greater than the length of the artery and a distal end portion (40, 42, 44, 46) extending from the straight portion and bent in a unique manner to enable the distal end (46) to be precisely located relative to the artery.
Patent CA-2102513-C (CA)
Inventor: JOHLER J RALPH
IPC: G01V3/12
Filed: 1992-05-20
Granted: 2002-02-05
Abstract: A method and apparatus in which a capacitor (10) is disposed in direct contact with the earth (130), and a short voltage pulse is applied to the capacitor (10) to transmit a pulse of electromagnetic radiation having a broad frequen-cy band into the earth (130). In a preferred embodiment, a portion of the electromagnetic radiation that has propagat-ed through the subsurface (130a, 130b) is detected (20) and processed to image the subsurface. The size (L) of the trans-mitting capacitor (10) should be sufficiently small to satisfy the relation Re[kL] < 1, where k is the wavenumber in the earth formation of each frequency component of radiation transmitted into the earth. In a preferred embodiment, the voltage pulse applied to the transmitting capacitor (10) has frequency components in a broad band front below 1 MHz to above 100 MHz, and the only frequency components of the detected electromagnetic radiation that are processed to image the subsurface have frequency in the range from about 500 KHz to 25 MHz.
Patent CA-2106118-C (CA)
Inventor: GUERIN JEAN-PIERRE
IPC: H04J7/00
Filed: 1993-09-14
Granted: 1998-09-22
Abstract: The invention relates to a method and devices intended to allow simultaneous transmission of two heterochronous binary signals (A, B) in the form of a single signal (I) by means of a single transmission link. There is provision for inserting, between the transitions of changing of the binary level of the first (A) of the two incident binary signals, a short polarity inversion for each of the pulses of the second incident signal (B) which correspond to the same one of the two possible binary levels for this second signal, each inversion due to the second signal being positioned beyond a guard region extending on either side of the transitions of change of binary level of the first signal. <IMAGE>
Patent CA-2106140-C (CA)
Inventor: MINAMI YOICHIRO
IPC: H04L27/14
Filed: 1993-09-14
Granted: 1998-10-13
Abstract: In an FSK receiver of double superheterodyne type for receiving an FSK modulated wave and comprising a PLL local oscillator (10) for ensuring a phase-locked loop to produce a first local oscillation signal and a demodulating section (12) for demodulating the FSK modulated wave into a demodulated signal using the first local oscillation signal and a second local oscillation signal, a control signal producing circuit (14) produces a control signal when the demodulated signal has a mean value indicative of a deviation from a phase lock in the phase-locked loop.  Connected to the demodulating section, a synchronizing circuit (16) establishes bit and frame synchronization on the basis of a binary digital signal obtained by deciding the demodulated signal to produce a synchronization detection signal when the bit and frame synchronization is established.  Connected to the PLL local oscillator, the control signal producing circuit, and the synchronizing circuit, an intermittent driving circuit (18) makes the PLL local oscillator intermittently operate on the basis of the control signal and the synchronization detection signal.  The PLL intermittent driving circuit makes the PLL local oscillator stop its PLL operation when the control signal is absent while the PLL intermittent driving circuit makes the PLL local oscillator activate the PLL operation when the control signal is present.
Patent CA-2108253-C (CA)
Title: Screening rake
Inventor: BORMET HORST
IPC: B01D33/04
Filed: 1992-01-29
Granted: 1999-04-06
Abstract: The invention concerns a screening rake for removing solids from flowing sewage, the rake having a driven screening belt which can be immersed in the sewage and which has two lateral chains. A group of screening elements fitted with hooks is mounted on each of two support rods independently of the preceding and following group of screening elements. The screening elements in each group have extension pieces which project beyond the two associated support rods in the direction of travel of the screening belt and in the opposite direction. The extension pieces of successive groups of screening elements engage with each other like the teeth of a comb.
Patent CA-2110235-C (CA)
Title: At least partially blocked organic polyisocyanates, a process for their preparation and their use in coating compositions
Inventor: KONIG EBERHARD
IPC: C08G18/10
Filed: 1993-11-29
Granted: 2003-02-25
Abstract: The present invention relates to organic polyisocyanates which have a content of unblocked and blocked isocyanate groups (calculated as NCO) of 5 to 20 wt.%, preferably 7 to 15 wt.%, wherein at least 95%, preferably 100%, of the isocyanate groups are present in blocked form and wherein the blocking agent contains A) 30 to 70 equivalent-% of diisopropylamine, B) 30 to 70 equivalent-% of at least one other blocking agent selected from CH-acidic esters and 1,2,4-triazole and C) 0 to 20 equivalent-% of blocking agents other than those set forth in A) and B), wherein the percentages of A), B) and C) add up to 100.      The present invention also relates to a process for the production of these organic polyisocyanates and their use as crosslinking agents for organic polyhydroxyl compounds in polyurethane coating compositions.
Patent CA-2114424-C (CA)
Inventor: ANDERSON ROGER N
IPC: G01V1/28
Filed: 1992-07-27
Granted: 2004-02-24
Abstract: In the exploration for petroleum or natural gas, drilling targets arc identified by locating local maxima of horizontal gradient in the top-of-geopressure surface of a region of exploration. The probability of finding hydrocarbon deposits is significantly improved where the drilling targets are local maxima of the horizontal gradient in the top-of-geopressure surface which coincide with local maxima of subsurface heat flow in the region of exploration, particularly where the local maxima in the horizontal gradient of the top-of-geopressure surface is concentrated across major fault offsets and are parallel to the predominant strike directions of the faults. The top-of-geopressure surface may be remotely sensed by performing complex trace analysis on reflection seismic traces gathered for the region of exploration to drive corresponding reflection strength attribute traces. The corresponding reflection strength traces are first smoothed and then subject to further complex trace analysis to derive the envelope amplitudes of the smoothed reflection strength traces, which are referred to as second reflection strength traces. The second reflection strength traces are then analyzed to locate an uppermost distinct subsurface boundary between high and low amplitude components thereof. Such a distinct boundary is then identified as the top-of-geopressure surface for the region of exploration.
Patent CA-2117005-C (CA)
Inventor: HORIKAWA MITSUO
IPC: A44B19/34
Filed: 1994-03-04
Granted: 1997-02-25
Abstract: A slide fastener which permits easy attachment of electric conductors and ensures supply of electric current  to all metallic coupling elements even if a part of the electric conductors is cut off.  And it has a neat appearance because the electric conductors exposed in spaces among the coupling elements do not look unsightly. In the slide fastener having a fastener tape, a core cord and metal-lic coupling elements disposed along a longitudinal edge of one side of the fastener tape, a plurality of electric conductors are used as a part of warps of the fastener tape, and the exposed portions of the electric conductors are shifted one another in the longitudinal direction.  Therefore, the electric conductors are substantially continuously exposed on the front surface of the fastener tape along the outer edge of the core cord and weaved in the fastener tape body.
Patent CA-2121449-C (CA)
Inventor: MORISON JIM
IPC: A47F7/00
Filed: 1994-04-15
Granted: 1998-11-17
Abstract: A faucet display unit for displaying watertaps, showerheads and the like.  The display unit comprises a shelf having a display surface with first and second edges.  At least one row of apertures is defined in the display  surface  for  facilitating  attachment  of  the faucets.  A plurality of clips are slidably attached to a track  located  on  the  first  edge  of  the  shelf  for connecting the shelf to a pegboard wall or a slot wall. A plurality of tracks  are provided on the  shelf  for receiving cards that display product information or that cover unused apertures.  In a first embodiment, the shelf extends in a downward slope relative to the wall.   In a second embodiment, the shelf extends generally vertically relative to the wall.
Patent CA-2122287-C (CA)
Title: Control system for disc playing device
Inventor: MITANI TADAHIRO
IPC: G11B17/22
Filed: 1994-04-27
Granted: 1999-12-21
Abstract: Identification codes comprising consecutive numbers are assigned to all disc holding grooves of a magazine. A memory of a microcomputer has a first storage area for storing the identification code of the magazine groove positioned as opposed to a disc insertion-discharge portion or playing portion, and a second storage area for storing the identification code of the groove accommodating the disc to be played. The direction of rotation of the magazine is determined by an arithmetic procedure based on the two identification codes stored in the first and second storage areas and on the difference in position between the insertion-discharge portion and the playing portion around the center of the magazine.
Patent CA-2131214-C (CA)
Inventor: VETTER GREGORY J
IPC: E05F11/34
Filed: 1994-08-31
Granted: 1999-10-19
Abstract: A housing assembly for a window operating assembly having a drive shaft and drive shaft boss having recesses on opposite sides thereof. The housing assembly includes a cover having a top-side with an opening therethrough and sides depending from the top side to define an interior and an exterior. The cover is open on the interior for receiving a portion of the window operating assembly including a drive shaft boss portion with a portion of the drive shaft extending through the top side opening to the exterior The depending sides having outer edges mateable with a window operating assembly to maintain alignment of the cover with a substantial portion of the operating assembly housed by the cover. A discrete connecting member is secured to the cover interior and includes an oblong opening with a narrow portion having a radial dimension less than that of the drive shaft boss. The oblong opening is axially aligned with the cover annular opening and, when secured to the operating assembly, has its narrow portion substantially radially aligned with and received in the drive shaft boss recess.
Patent CA-2131291-C (CA)
Title: Method and apparatus for repairing conduits
Inventor: MAIMETS LEMBIT
IPC: F16L55/162
Filed: 1993-03-09
Granted: 2004-05-04
Abstract: Method and apparatus for internal repair of conduit system. An inner sleeve (1) is employed which is configured to avoid undue pressure being applied to the inner surface of a damaged conduit section as it is expanded into position. A grouting area is defined between the outer surface (2) of the sleeve and the inner surface of the conduit section or sections being repaired. In one embodiment, a layer of opencelled material is placed around the coiled sleeve, which is thereafter impregnated with the quantity of grout. In this embodiment of the invention, each longitudinal end (3) of the sleeve is flared outwardly for contacting the inner surface of the damaged conduit section and for retaining the grout as it is squeezed out of the gasket upon the expansion of the inner sleeve to its expanded and locked position.
Patent CA-2131565-C (CA)
Title: Organopolysiloxanes containing hydrophilic groups
Inventor: STEPP MICHAEL
IPC: C09D7/65
Filed: 1994-09-07
Granted: 1998-03-31
Abstract: The invention relates to organopolysiloxanes containing hydrophilic groups, processes for their preparation and their use in organopolysiloxane compositions which are crosslinkable upon intake of moisture.
Patent CA-2133769-C (CA)
Inventor: LYNUM STEINAR
IPC: C09C1/48
Filed: 1993-04-05
Granted: 1997-12-30
Abstract: A decomposition reactor for installation in connection with a thermal decomposition chamber for hydrocarbon gases especially a plasma torch (2), is designed in the form of a defined, insulated chamber, with an inlet for admixtures/gases in the walls of the reactor space. In order to improve the control of the products produced, the supply channels (4) in the walls of the reactor (1) are provided with channels for introducing hydrocarbon gases of the same kind as the main medium introduced at a temperature of between 1000 and 2000°C in the upper region of the space. Hydrocarbon gas of a lower temperature is introduced at one or more points further down in the reactor. A method for the operation of such a decomposition reactor for the production of carbon black with defined physical properties, is also described.
Patent CA-2135506-C (CA)
Inventor: KAM PATRICK
IPC: G06F3/16
Filed: 1994-11-09
Granted: 1999-06-08
Abstract: An audio system is provided for generating audio sound for a host computer.  It includes an interface connector for connection with the host computer; an interface controller for communicating with the host computer using the interface connector; a trap adapted to trap audio instruction signals from an application running on the host, such as a game having an audio portion; a trap controller adapted to control the trap;  and an audio output.   The system operates with an interface communicator which is adapted to respond to a request from the interface controller to read information from the  trap and send audio output instructions to the audio output to generate audio sound.
Patent CA-2135754-C (CA)
Title: Device for volumetric dosing of products
Inventor: CREDLE WILLIAM S JR
IPC: B67D1/00
Filed: 1993-06-02
Granted: 2003-05-20
Abstract: A post-mix beverage dispensing valve for dispensing syrup and soda in the desired ratio without the need for flow controls for periodic adjustment of the ratio. The valve in-cludes a flow meter (30) for measuring the flow rate of the so-da and a pump (10) for dispensing metered quantities of sy-rup. The pump (10) preferably includes a chamber (14) within a ceramic sleeve (12) having first and second distal ends and a double-acting ceramic piston (16) mounted for reciprocat-ing sliding movement within the sleeve (12). A solenoid valve control system including a pair of solenoid valves (SCA, SCB) controls syrup flow through the pump (10), in response to signals from the flow meter (30). The valve preferably also includes a syrup flow regulator. The valve can include a single externally manually adjustable flow rate control to vary the dispensing flow rate to any desired value.