baber/WOPTO huggingface dataset:
Patent CA-2080339-C (CA)
Title: Process for recovering natural gas in the form of a normally liquid carbon containing compound
Inventor: VAN DIJK CHRISTIAAN P
IPC: C10G2/00
Filed: 1991-04-09
Granted: 2002-02-26
Abstract: This invention comprises a method for converting natural gas to a normally liquid carbon containing compound, such as methanol and/or dimethyl ether and/or to gasoline grade liquid hydrocarbons and/or olefins. The method of this invention elininates the need for steam reforming and/or adiabatic reforming with essentially pure oxygen of the natural gas to a synthesis gas. In accordance with the process of this invention, a synthesis gas may be produced at an op-erating pressure suitable for conversion thereof to methanol and/or dimethyl ether without the need for synthesis gas recompression. Fur-ther, the vent or bleed gas from the overheads after conversion to the crude product methanol/DME and/or its conversion to gasoline grade liquid hydrocarbons, generally has a BTU capacity required to serve as a fuel gas for supplying the energy needed for operation of the gas compression equipment requirements by which the process of this invention may be practiced. Accordingly, the capital and operat-ing cost associated with the production of methanol, DME and gaso-line from natural gas is significantly reduced by the method of this in-vention and renders it economically feasible for natural gas recovery processing at remote locations.
Patent CA-2083451-C (CA)
Title: Universal locking connector for human breathing systems
Inventor: ANTHONY GEOFFREY PHILIP
IPC: F16L23/036
Filed: 1992-11-20
Granted: 1996-09-17
Abstract: Connector connects two annular objects face-to-face. It may be used as a hose end coupling that connects two flanged  hose  ends  end-to-end.  It includes two components of the same configuration that connect directly to one another. Each a hose end flange preferably has a tapered back face and an O-ring seal fitted in a groove in the end face to engage an O-ring seal on the end face on the mating component. To hold the two end flanges together, two connector components of the same configuration are mounted on the respective end flanges. Each includes two part annular retainers that engage over the hose end flanges and urge them together. The web joining the two retainers has an offset section with teeth that engage similar teeth on the other connector component.  The coupling is intended for use in breathing gas supply systems such as are used in medical applications.
Patent CA-2083811-C (CA)
Title: Composition for thermosetting powder coating
Inventor: MIYAZAKI EIICHIRO
IPC: C08K5/092
Filed: 1992-11-25
Granted: 1996-09-17
Abstract: A composition for thermosetting powder coating, which comprises (a) an acrylic copolymer of high softening point having an epoxy equivalent of 250-1,000 g/eq and a softening point of 90-160°C, (b) an acrylic copolymer of low softening point having an epoxy equivalent of 200-600 g/eq and a softening point of 30-70°C, (c) a polycarboxylic acid, and (d) optionally, a phosphoric acid ester compound and/or a phosphorous acid ester compound, and wherein the difference in softening point between (a) and (b) is 60-120°C, the weight ratio of (a)/(b) is 95/5 to 60/40, and the equivalent ratio of [the total epoxy groups of (a) and (b)] : [the acid group of (c)] is 0.5: 1 to 1: 0.5.            Said composition has excellent storage stability and, when used as a coating for automobiles, gives a film superior in appearance, solvent resistance and acid resistance.
Patent CA-2084168-C (CA)
Title: Apparatus for deheading and cleansing shrimp
Inventor: LEDET BRENT A
IPC: A22C29/02
Filed: 1992-11-30
Granted: 1996-02-27
Abstract: Apparatus for deheading and cleansing shrimp in a continuous-flow product transport system for more efficient storage or peeling.          The apparatus transports  food product having weakly  attached appendages,  such  as  crustaceans  and  especially  shrimp,  along conduits in a fluid medium at a flow rate as controlled by a food pump.  Upstream conduit defines a flow channel having a certain cross-sectional area; downstream conduit defines a flow channel having a cross-sectional area less than that of the upstream conduit.   The narrowing of the flow channel in an intermediate conduit-connecting region causes an increase in the speed of the product-laden fluid in that region.  The ratio of the downstream speed to the upstream speed is inversely proportional to the ratio of the cross-sectional area of the downstream channel to the upstream  channel.    The  abruptness  of  the  speed  increase  is determined by the nature of the intermediate region.  A relatively abrupt narrowing of the flow channel in the intermediate region causes an abrupt speed increase, which creates hydrodynamic forces that tend to detach,  in the case of shrimp,  heads from the desirable tail meat.  An abrupt speed increase of about four to one is preferable.   In the higher-speed downstream flow channel, further cleansing of the shrimp of sand, dirt, and visceral fluids occurs.  The tails and detached heads are strained from the dirty transport fluid prior to the segregation of tails and detached heads.  Detached heads are discarded, and cleansed, headless tails are made available for efficient storage or peeling.
Patent CA-2087151-C (CA)
Title: Thermal evaporation in two planes
Inventor: EISFELLER RICHARD C
IPC: C23C14/24
Filed: 1993-01-12
Granted: 2002-08-20
Abstract: Vacuum metallizing substrates having both vertical and horizontal surfaces occurs by directing metal from two remote sources by thermal evaporation. One source is connected horizontally below the object to depose metal vertically toward the object to the horizontal surface thereof. The second source is connected vertically to the object to depose metal horizontally toward the object to the vertical surface thereof. A vacuum chamber contains a rotating carousel supporting the objects with the sources located fixedly within the chamber to perform the thermal evaporation.
Patent CA-2089967-C (CA)
Title: Multiple drain trap primer assembly for sewer lines
Inventor: PERROTT CHARLES H
IPC: E03C1/296
Filed: 1993-02-19
Granted: 1996-11-26
Abstract: A multiple drain trap primer valve assembly. The assembly comprises a plumbing conduit system including a house line 10 carrying water under pressure and a plurality of branch lines 12 each serving the drain trap 14 of a particular plumbing fixture. A manifold 26 having multiple discharge openings is connected into the house line. Coupling means 30 couple the branch lines to the manifold, one to each opening.          Each coupling means includes a flow orifice 44 of size predetermined to equalize the flow of priming water to the branch line. Time-clock controlled valve means 20 is positioned in the house line to open it to the flow of water at predetermined time intervals.
Patent CA-2106842-C (CA)
Title: Electrostatic separation of mixed plastic waste
Inventor: INCULET ION I
IPC: B03C7/00
Filed: 1993-09-23
Granted: 1997-03-04
Abstract: A mixture of particles of plastic materials having different work functions is fed through a rotating tube.  The tube rotates about an axis which is inclined slightly to the horizontal.   The tube  is of plastic or metallic material, preferably having a rib for stirring the mixture.   As the particles pass progressively down the length of the tube, the triboelectrically induced charge progressively increases, whereby the particles are highly charged upon emerging from the tube. The tube may be made of the same material as a minority component of the mixture to bring up the level of the charge on the majority component.
Patent CA-2114181-C (CA)
Title: Waste container system
Inventor: REICHEL GUENTER
IPC: B65F1/00
Filed: 1994-01-25
Granted: 1999-02-23
Abstract: A waste container system (10) has a receptacle box (12) with stowage  space  (20)  for  forward-tiltable  and  removable individual  containers  (22),  each  of  which  is  allocated underneath a cover (18) a manual pressing plate (30) that can be pulled forward in sliding guides (40, 58) and swung down in the limit position (50). This manual pressing plate has a sliding/pivoting bearing  (34)  on each side at the rear,  and  on  its  underside  a  pressing  element  (60) projecting inwards/downwards, the upper side of which forms a recess (32) accessible from above/outside and topped by a handle  strip  (78).  The  pressing  element  (60)  is  pulled forward by  the  upper  rear  edge  (68) of  the  individual container  (22)  as  the  latter  is  tilted  forwards.  Each individual container (22) is supported at the front by means of a depression (44; 46) provided on the bottom and resting on a tilting bearing-type rib (54) of a box pedestal (52), and can be tilted forwards optionally using a pedal strip (26) or a handle (28) and/or removed using a carrying handle (64). A sealing stop (48) at the top and on the front plate (24) engages with the front edge (74) of the cover (18) when the container (22) is in its rest position.
Patent CA-2115406-C (CA)
Title: Automatic thawing device of microwave oven and control method thereof
Inventor: KIM SEOG TAE
IPC: H05B6/68
Filed: 1994-02-10
Granted: 2003-04-08
Abstract: An automatic thawing device of a microwave oven and a method for control thereof. A turntable is rotatably placed in a cooking chamber. A gas sensor is placed about an exhaust port of the oven and senses amount of gas or vapor exhausted from the cooking chamber through the exhaust port during a thawing operation, and outputs a gas amount signal to a microprocessor. The microprocessor calculates a thawing time by operation of the output signal of the gas sensor and outputting a thawing control signal for driving the microwave oven. An output drive unit controls output level of electromagnetic wave of high frequency of a magnetron in accordance with the thawing control signal of the microprocessor. The magnetron generates the electromagnetic wave of high frequency in accordance with output signal of the drive unit for the thawing time. A power source supplies an electric power to the thawing device in accordance with the thawing control signal of the microprocessor.
Patent CA-2116480-C (CA)
Inventor: NORTH AMIE MARIE
IPC: A47K10/42
Filed: 1994-02-25
Granted: 2004-11-23
Abstract: The tearing of tissues during dispensing from upright tissue cartons is reduced by providing the carton with a plastic film having a dispensing opening with an effective open area of about 3 square inches or greater. Dispensing openings formed by multiple intersecting slits provide improved dispensing while retaining an aesthetic pop-up presentation and protection of the tissues within the carton.
Patent CA-2120644-C (CA)
Inventor: RAY-CHAUDHURI DILIP
IPC: A61K8/87
Filed: 1994-04-06
Granted: 1997-11-18
Abstract: A soluble polyurethane prepared from an organic diisocyante, a diol, and a 2,2-hydroxymethyl-substituted carboxylic acid is neutralized with a cosmetically acceptable organic or inorganic base and formulated into a hair fixative composition containing low amounts of volatile organic solvent.
Patent CA-2128305-C (CA)
Title: Secure telecommunications
Inventor: COX RICHARD VANDERVOORT
IPC: H04K1/00
Filed: 1994-07-18
Granted: 2000-06-27
Abstract: A security node disposed in the telecommunications network connecting calling and called parties transforms information (which can be voice, data, facsimile, video and other types of calls or messages) encrypted in a first format to (a) encrypted information in a different format or to (b) non-encrypted information, and vice-versa. The node is accessible from any location connected to the network. By routing calls or messages originated by the calling party and destined for the called party via the security node, and providing appropriate control signals to the node, the information may be encrypted only over a portion of the transmission path between the parties, and clear over the remainder of the transmission path. Alternatively, the information may be encrypted in different portions of the path using different encryption algorithms. This arrangement enables the parties to obtain relatively secure communications even if only one party has a security device at the originating or terminating end, or if the parties have security devices using different handshaking protocols and encryption algorithms.
Patent CA-2131866-C (CA)
Inventor: STEGALL LANNIE L
IPC: E03F3/04
Filed: 1994-09-12
Granted: 1998-09-29
Abstract: A trench forming assembly for forming a trench of predetermined shaped is disclosed according to the present invention.  The assembly includes a pair of parallel elongate frame members for defining a support surface for supporting a trench cover.  The assembly also includes an elongate form body for shaping a hardenable trench forming composition into the predetermined shape of the trench and having opposed side surfaces with which the frame members may be engaged.  The trench forming assembly further includes at least one pair of upwardly extending legs for anchoring the frame members in a predetermined location. Each upwardly extending leg is joined at a top portion to one of the frame members and is joined at a lower portion to a corresponding leg for forming a generally U-shaped structure.  The generally U-shaped anchoring leg structure maintains engagement of the frame members with the side surfaces of the form body. Once the trench is formed, the frame members may be removed, if desired, from the top portions of the upwardly extending legs to expose a pair of grate receiving recesses.
Patent CA-2137172-C (CA)
Inventor: EVERETT JON A
IPC: E03B7/00
Filed: 1994-12-02
Granted: 1997-09-09
Abstract: A backflow prevention assembly is disclosed which provides  for  detection  of  backflow  conditions.    The backflow preventer assembly includes a housing having an inlet,  an outlet and a discharge opening.   A pair of independent check valves is positioned within the housing between the inlet and the outlet.   The check valves are mechanically and hydraulically independent from each other and each adapted to seal the inlet from the outlet during backflow conditions.  A relief valve is positioned within the housing between the check valves to selectively seal the discharge opening.  An alarm is coupled to the relief valve to provide a signal when the relief valve is opened indicating backflow and discharge conditions.
Patent CA-2140447-C (CA)
Inventor: LANE STEPHEN M
IPC: G01T7/02
Filed: 1993-07-22
Granted: 2000-01-04
Abstract: A shielded dose calibration apparatus including one or more hand-held portable shield units (11) containing a vessel (12) with a radioactive sample in a shielded chamber and a calibration station (13) for calibrating the sample in the vessel without removing the vessel from the protections of the shielded chamber.      The shield units (11) include on-board detectors (36) for measuring the radioactivity from the sample.      The calibration station (13) may include a separate controller unit (16) and one or more base units (14).      To calibrate a sample, the portable shield unit (11) is placed on a base unit (14), which senses the presence of the shield unit. The shield unit then communicates an identification signal and the data measured by the on-board detectors (36) to the controller unit (16) via the base unit (l4). Power may also be transmitted to the shield unit (11) via the base unit (14), avoiding the need for an on-board power source. In another embodiment the portable shield unit may be entirely pelf-contained, including an on-board power source (35), detectors, processing electronics, and readout mechanism (40).
Patent CA-2142798-C (CA)
Title: Computer system with touchpad support in operating system
Inventor: BERTRAM RANDAL L
IPC: G06F3/038
Filed: 1995-02-17
Granted: 2000-11-14
Abstract: A computer system comprising a central processing unit (CPU) configured to accept coordinate type data from a touchpad or the like. The CPU has an operating system executing thereon with special support for interfacing to the touchpad. The operating system has the following capabilities: (1) mapping out geometric regions of the touchpad and assign the regions to specific region identifiers responsive to application programs and (2) determining the region identifier of a touched region and passing that region identifier to the application program.      Support is also provided for changing the units of the commands used to define the regions.
Patent CA-2146227-C (CA)
Title: Electronic allergo-sensitivity test device
Inventor: MILNE ROBERT DREW
IPC: A61B5/053
Filed: 1995-04-03
Granted: 2000-10-10
Abstract: A device and method for testing a patient's sensitivity to a plurality of potential allergens is disclosed using the galvanometric skin response of the patient's body to determine the same.  A pair of electrodes are attached at separate locations of the body and are connected to a signal amplification unit and A/D converter, which is in turn connected to the bus of a personal computer.  An allergen sampling tray is also connected to the computer bus and also a third electrode adapted to deliver the allergen samples in sequence transcutaneously.  The skin response changes according to severity of the allergen reaction, and the signal amplification means and A/D converter allow these changes to be viewed graphically in a real time mode on the computer screen and also to be stored within the computer and to be printed out to allow the physician and the patient a hard copy of the test data.
Patent CA-2155235-C (CA)
Inventor: TURNER STANLEY W
IPC: G01S17/86
Filed: 1995-08-02
Granted: 1999-01-19
Abstract: An  apparatus  (20)  for  destroying  a target underwater  object  (22)  includes a targeting system (28)  and  a  gun  system (32).  The targeting system (28)  has  a  laser  (52) which produces a laser beam (30),  a  laser  ranging  sensor  (56)  sensitive  to reflections  (54)  of  the  laser  beam (30) from an underwater  object  (90),  and  electronic  circuitry that   determines   the   position   of   the  target underwater  object (90) using an output signal of the laser  ranging  sensor  (56).    The  gun system (32) includes  a gimballed gun that fires a projectile and is  pointed  at  the  underwater  object  (90) by the targeting  system  (28).    The targeting system (28) may  be operated to track the projectile (34) in the water  as  well  as  the  target  object  (90)  to be destroyed,   and  to  correct  the  aim  of  the  gun according  to  the  relative  position  of the target object (90) and the projectile (34).
Patent CA-2156404-C (CA)
Title: Method of sharpening profile-sharpened cutting blades
Inventor: PEDERSEN HARRY
IPC: B23F21/22
Filed: 1994-02-10
Granted: 1999-07-27
Abstract: A method of sharpening cutting blades of the type made from bar stock type material the method comprising producing relief surfaces on the cutting profile surface. The method comprises forming first and second relief surfaces (95, 96) on the cutting profile surface. The first relief surface (95) extends from a location inward of the cutting edge (62) to the back face (55) and is oriented at a first relief angle (.beta.R) with respect to a side surface (54). The second relief surface (96) extends from the cutting edge (62) to the first relief surface (95) and is oriented at a second relief angle (.beta.) with respect to the side surface (54) with the second relief angle (.beta.) being smaller than the first relief angle (.beta.R). The cutting blades may comprise a base portion (51) and a cutting end (52), or, the cutting blades may have a uniform cross section along their length with the front surface of the cutting blade comprising a pair of mounting surfaces (148, 150), rake surface (152) and connecting surface (154). The cutting surface may include a protuberant portion (80) adjacent the top surface (64) of the cutting blades, the protuberant portion (80) also including the first and second relief surfaces (90, 91).
Patent CA-2157401-C (CA)
Title: Dispositif de positionnement d'un soufflet de joint homocinetique
Inventor: WEAVER BRUCE W
IPC: B23P19/02
Filed: 1994-03-11
Granted: 1999-04-20
Abstract: Dispositif permettant de positionner une enveloppe souple (27) de joint homocinétique sur un arbre (17). Un manchon (1 ou 2) comprend une partie cylindrique (7) qui enveloppe le joint homocinétique extérieur (13), et une partie conique (9) qui loge l'arbre de commande (17). Une enveloppe souple (27) de joint cinétique destinée à enfermer l'extrémité ouverte du joint cinétique (13 ou 37) est fixée à l'intérieur d'une extrémité d'un cylindre (3) de forme allongé. Une bande (23) de texture grossière, placée autour d'une lèvre (21) faisant saillie autour de l'arête extérieure du cylindre (3) vient en contact avec la région du col de l'enveloppe (27), et l'enveloppe (27) ainsi que le cylindre (3) sont glissés sur le manchon (1 ou 2), au moyen d'une poignée (5) fixée à l'autre extrémité du cylindre (3). L'enveloppe (27) se déploie sur le manchon (1 ou 2), et à partir de là sur le joint homocinétique extérieur (13), et vient en contact avec l'arbre de commande (17), de l'autre côté du joint cinétique extérieur (13).
Patent CA-2158826-C (CA)
Title: Process for the preparation of urea
Inventor: CHYS JAN
IPC: C07C273/14
Filed: 1995-09-21
Granted: 2006-05-30
Abstract: Process for the preparation of urea, wherein in a first step ammonia and carbondioxide react in suitable conditions so as to form a first mixture containing a quantity of urea, wherein in one or more subsequent steps ammonia and carbondioxide is removed from the first mixture and the obtained urea is concentrated until a urea concentration has been reached suitable to be granulated in a gas stream, whereby apart from urea granules a second mixture containing air, gaseous ammonia and urea dust is formed which subsequently is washed, and wherein before or during the washing an amount of formaldehyde is added to the second mixture of air, ammonia and urea under circumstances wherein the ammonia can react with the formaldehyde in order to form hexamethylenetetramine (HMTA) whereupon the so formed HMTA is separated from the gasstream and is returned into the process before the granulation step.
Patent CA-2161690-C (CA)
Title: Improvements relating to component mounting arrangements
Inventor: GRAY IAN JAMES STAFFORD
IPC: H01R13/646
Filed: 1994-04-29
Granted: 2000-10-17
Abstract: Mounting arrangement for mounting an electrical compo-nent on a printed circuit board. The component is provided with at least one electrical terminal pin which extends in parallel re-lationship with conductive legs projecting from an underside of the component.   The terminal pin is so spaced from the legs and so shaped or profiled that it is deflected laterally from the nor-mal position thereof as it moves into a plated through-hole in the printed circuit board while the conductive legs slidingly engage respective further plated through-holes. The shaping of the ter-minal pin allows the pin to return to its normal position relative to the conductive legs and thereby co-operate with the printed circuit board to retain the component securely in position when the component becomes fully mounted.