baber/WOPTO huggingface dataset:
Patent CA-2048952-C (CA)
Inventor: OETIKER HANS
IPC: B65D63/00
Filed: 1991-08-12
Granted: 1995-05-09
Abstract: A clamp structure with one or several plastically deformable ears whose holding ability is increased by an external strengthening member surrounding the plastically deformable ear in its non-deformed condition; the lateral portions of the strengthening member are thereby so constructed and shaped that an application of a force to the lateral members will cause the ear to be plastically deformed.
Patent CA-2057853-C (CA)
Inventor: AHERN STEVEN ROSS
IPC: F02B75/02
Filed: 1990-06-29
Granted: 2003-02-18
Abstract: An internal combustion engine, preferably a two stroke engine, having a cylinder head (12) at one end of the cylinder (5), a piston (6) mounted for reciprocation in the cylinder (5), a cavity (13) in the cylinder head (12) and a fuel injector nozzle located in the cavity (13) in the cylinder head (12) to deliver fuel into the cavity (13) in a direction towards the piston (6). The piston (6) hav-ing a bowl (31) in the top thereof positioned to intersect the path of delivery of the fuel from the injector nozzle. A rim (32) ex-tending around the periphery of the bowl (31) and upstanding from the top surface of the piston (6). The bowl (31) and rim (32) effecting containment of the fuel particularly during high fueling rates to control the combustion process.
Patent CA-2058019-C (CA)
Inventor: BOSLET KLAUS
IPC: G01N33/543
Filed: 1991-12-18
Granted: 2003-12-09
Abstract: The use of pairs of peptides with extremely high specific affinity for one another in the area of in vitro diagnosis The invention relates to the use of certain peptides with extremely high affinity for other peptides (heterodimer formation) and low affinity for themselves (homodimer formation) in the area of in vitro diagnosis.
Patent CA-2062189-C (CA)
Title: Protection circuit in inverter for refrigerators
Inventor: FARR JAMES B
IPC: H02M7/53
Filed: 1992-03-03
Granted: 1997-03-25
Abstract: The present invention is an inverter      for a portable refrigerator    .  The inverter includes a square wave generator      operable by a DC voltage source     .  A timer      is also included which, in conjunction with the square wave generator, provides a multiple phase waveform for operating a compressor motor     .  For conventional three winding compressor motors, the inverter provides a six-step waveform for operation of the portable refrigerator.  The inverter can also drive the motor using either a first or second DC voltage level, by minor changes in the inverter and using either a wye      or delta      winding configuration.  The inverter also includes a protection circuit      which protects against locked rotor and overload current, as well as a shut-off circuit    to guard against operating at low speeds and completely draining the battery.
Patent CA-2064647-C (CA)
Inventor: GRASSO GIORGIO
IPC: H01S3/067
Filed: 1992-04-01
Granted: 2000-02-08
Abstract: The optical  amplifier  (1)  comprises  two  amplifying stages.  an upstream amplifying stage (SM) and a downstream amplifying stage (SV). The former stage comprises an upstream active fiber (9) doped with a fluorescent dopant and connected serially to the optical fiber line (2), an upstream optical coupler (10) connected serially downstream from the upstream section of active fiber (9), a laser diode (11) for supplying pumping energy towards. the upstream active fiber (9) through the coupler (10), said coupler being oriented to cause pump energy travel towards said upstream active  fiber  (9)  in  the opposite direction from the predetermined signal direction (S); the latter stage (SV) comprises a downstream  active  fiber  (3)  doped  with  a  fluorescent  dopant  and connected serially  in  the  optical  fiber  (2),  a downstream optical coupler (4) connected serially in the downstream active fiber (3), a laser diode (5) for supplying pumping energy into the downstream active fiber (3) through the downstream coupler (4), a first optical insulator (7) serially connected upstream of the downstream active fiber (3), a second optical insulator (8)  serially connected downstream from the downstream active fiber (3).
Patent CA-2066464-C (CA)
Title: Preparation process of .alpha.-aspartyl-l-phenylalanine methyl ester
Inventor: HIGUCHI CHOJIRO
IPC: A23L27/30
Filed: 1992-04-21
Granted: 1998-04-07
Abstract: .alpha.-L-Aspartyl-L-phenylalanine methyl ester (.alpha.-APM) is prepared by catalytic hydrogenation of N-benzyloxy-carbonyl-.alpha.-L-aspartyl-L-phenylalanine methyl ester (Z-.alpha.-APM).  The catalytic hydrogenation is conducted in an aqueous suspension containing the Z-.alpha.-APM in the form of particles whose average particle size is not greater than 800 µm.  The starting Z-.alpha.-APM may contain up to 30 wt.% of its .beta.-isomer provided that the process additionally includes recrystallization of the .alpha.-APM, collection of the .alpha.-APM by filtration and recycling of the filtrate for use in the aqueous suspension of Z-.alpha.-APM.
Patent CA-2072885-C (CA)
Title: Polarographic chemical sensor with external reference electrode
Inventor: MEYERHOFF MARK
IPC: G01N27/49
Filed: 1991-01-22
Granted: 1997-12-16
Abstract: An electroanalytical electrode assembly comprises an electrically conductive wor king electrode which includes an electrical conductor (15) having a body of electrolyte material (16) thereupon and separate d from the analytical environment by a hydrophobic membrane (18). The membrane has an electrical conductivity greater than the electrical conductivity of the remainder of the measuring circuit and is selectably permeable for a preselected and ionic sp ecies, so as to provide a stable membrane potential. Use of an assembly of this type allows for placement of a reference electrode (2 0) external of the membrane (18).
Patent CA-2074793-C (CA)
Title: Manhole head assembly, manhole top ring having an adjustable upper part and method of use of said manhole top ring
Inventor: BEGIN GAETAN
IPC: E02D29/12
Filed: 1992-07-28
Granted: 1996-06-04
Abstract: The invention relates to a manhole head assembly of the type  having  a  substantially  vertical  axis  and  being intended to be mounted on a conventional manhole member made of non-elastic material. This head assembly comprises a stack of rings substantially co-axial with said vertical axis, whose:  a lower ring made of non-elastic material and provided with a lower and an upper parts, the lower part being  shaped to be  stacked on  an  upper part  of  the aforesaid conventional manhole member;   one or several upper rings made of resilient elastomeric material and each provided with a lower and an upper parts, the lower part of each of said upper rings being shaped to be stacked either on the upper part of the lower ring, or on the upper part of a neighboring upper ring positioned underneath; means for fastening the lower part of one upper ring against the upper part of the lower ring; means for fastening the lower part of any of said(s) other(s) upper ring(s) with the upper  part  of  a  neighboring upper  ring  positioned underneath, when there is more than one upper ring; a manhole cover provided with a lower,  lateral(s) and an upper parts; and means positioned in the upper part of the upper ring which is located at the top of the stack for receiving the lower and lateral(s) part(s) of the manhole cover while positioning the upper part of said manhole cover substantially flush with the upper part of this uppermost upper ring.  The invention also relates to a manhole ring having an omni-directional upper part and to a method of use of said manhole ring.
Patent CA-2078159-C (CA)
Title: Discharge system for combustion gases
Inventor: KOUDIJS PHILIP RIJK
IPC: F16K11/052
Filed: 1992-09-14
Granted: 2002-11-26
Abstract: The invention relates to a discharge system for combustion gases of a gas turbine or the like, whereby one end of the discharge pipe is connected to the gas turbine or the like, whilst the other end of the discharge pipe is connected to a heat exchanger. A branch pipe, which extends transversely to the discharge pipe, is connected to said discharge pipe. A valve mechanism is disposed near the connection of the branch pipe to the discharge pipe, which valve mechanism is pivotable between a first position, in which the end of the branch pipe connecting to the discharge pipe is closed, and a second position, in which the discharge pipe is closed downstream of the connection of the branch pipe to the discharge piped. At least one curved guide vane is provided, which, in the second position of the valve, is located upstream of the valve mechanism, at least partially within the discharge pipe, and which extends downstream from its upstream edge, in the direction of the branch pipe. The guide vane is adjustable up to a position in the branch pipe, so as to be able to adjust the valve mechanism from the second position into the first position.
Patent CA-2089622-C (CA)
Title: Weed extraction device
Inventor: GREEN WILLIAM J
IPC: A01B1/16
Filed: 1993-02-16
Granted: 1995-10-17
Abstract: A weed extraction device for digging, cutting, twisting and pulling out weeds.  The weed extraction device includes a rod member  from which a handle is formed by bending the rod  member.          The handle is useful in pushing the device into the ground and to twist the device to twist out the weeds and by which the user can pull  the weed from the ground without bending  over.    The  rod member  also includes a foot step which is formed by bending  the rod member and is useful in pushing the device into the ground to the  depth  of the tap root.   Attached permanently  to  the  rod member  is the root trap which is a half-cone  or  hemi-conically shaped cutting, coring and compacting portion of the device.  The root  trap is useful to dig into the ground,  cut a  cone  shaped plug,  compact  the tap root and branch roots and twist  out  the weed  including  the tap root which prevents the root  from  ever growing again.  The cutting teeth of the root trap on the leading edge  of the root trap cut the branch roots and free  the  branch roots  from attachment to the soil.   The twisting action of  the handle, rod member and the root trap results in the twisting free of  the  weed.   The device is used to pull the weed out  of  the ground from the standing,  upright position with little effort or back strain.
Patent CA-2095132-C (CA)
Title: Aerator for a liquid-filled basin
Inventor: SCHEIBINGER LUDWIG
IPC: F16L3/18
Filed: 1992-08-20
Granted: 1995-11-28
Abstract: A device  for aeration of a  liquid vessel comprising at least  one guide rail /2/  and a plurality of  sliders /3/ arranged thereon and the sliders /3/ include holders carrying at least one  hose of which at least  a portion is perforated and the  device further comprises  pulling means for  pulling the hose  /5/ into the  empty or liquid  containing vessel to its working position. The hose  /5/ is movable along its axis with respect to said holders /4/ wherein the holders /4/ have a closed circular  shape and their sliders  /3/ are connected to pulling means /6/.
Patent CA-2096899-C (CA)
Title: Process for producing a high-temperature superconductor and moldings formed therefrom
Inventor: BOCK JOACHIM
IPC: C01G1/00
Filed: 1993-05-25
Granted: 1998-09-22
Abstract: In a process for producing a high-temperature superconductor  and  moldings  formed  therefrom,  comprising oxides of bismuth, strontium, calcium, copper and optionally of lead as well as sulfates of strontium and/or barium, the oxides of bismuth, strontium, calcium, copper and optionally of lead in the desired molar ratio, as well as additionally from 2 to 30% by weight of strontium sulfate and/or from 1 to 20% by weight of barium sulfate, each calculated according to the mixture of the oxides, are mixed intimately, the mixture is melted in a crucible of a platinum metal at temperatures from 870 to 1600°C, the melt is poured into permanent molds of desired form and size and is allowed to solidify slowly therein, and the moldings produced are freed from the permanent mold material and are annealed for from 6 to 200 hours at temperatures from 700 to 900°C in an oxygen-containing atmosphere.
Patent CA-2097928-C (CA)
Title: Uracil derivatives
Inventor: SATOW JUN
IPC: C07D409/10
Filed: 1991-12-16
Granted: 2002-04-02
Abstract: The present invention relates to an uracil derivative represented by the formula (1): (see formula 1) in which R1 represents hydrogen, alkyl or haloalkyl; R2 represents haloalkyl; R3 represents hydrogen, alkyl, haloalkyl, hydroxymethyl, halogen or nitro; R4 represents hydrogen or halogen; R5 represents hydrogen, halogen, nitro or cyano; X represents oxygen or sulfur: provided that the case where both of Da and Db represent hydrogen is excluded and a herbicide containing the same. The compound can be safely applied to important crops and shows high effect against many weeds in a low amount.
Patent CA-2099540-C (CA)
Inventor: YOUNG RICHARD L
IPC: E04F21/22
Filed: 1993-07-02
Granted: 1996-07-16
Abstract: A board press (10) comprises a dog member (12) dimen-sioned and configured to grip a joist (14a) and a lever (16) attached to one end to the dog member (12) by a ball and socket mounting (18) for pivoting of lever (16) about a pivot axis P-P.  The ball and socket mounting (18) en-ables the pivot axis to be angularly displaced about a point on pivot axis P-P, thereby permitting the user to pivot the lever (16) perpendicularly to the edge (27) of a board (26a) being pressed despite twisting of the dog mem-ber (12) on the joist (14a) during use.  A method of pressing one or more boards disposed on a joist includes using the board press and pivoting the lever in a pivot plane which is kept perpendicular to the edge of the board while simultaneously twisting the dog member to seat it upon the joist.
Patent CA-2100411-C (CA)
Inventor: GYONGYOSI LASZLO
IPC: E21B19/084
Filed: 1993-07-13
Granted: 1998-07-14
Abstract: A hydraulic system for moving a drilling head in a rectilinear motion between a mast crown and a mast table on a drilling machine includes a double rod hydraulic cylinder connected at a bottom end to a mast table and at a top end to a traveling sheave block; first and second flexible connector members for connecting a drilling head to the mast through the sheave block; and hydraulic feed circuitry for actuating the cylinder to move the sheave block and drilling head alternately in a first pulldown direction and in a second pullback direction.
Patent CA-2105878-C (CA)
Inventor: SCOTT BENTLEY N
IPC: G01N22/04
Filed: 1992-04-09
Granted: 2002-10-01
Abstract: The concentration of one liquid, such as water, in another liquid, such as crude or refined oil, existing in a mixture which also includes entrained gas is carried out by an apparatus (Fig. 1, 10) which measures a change in a microwave oscillator (30} op-erating frequency and the difference between incident and transmitted power with respect to a measurement section of the appar-atus (10). Continuous monitoring (60) of the difference in incident versus transmitted power is carried out to detect the presence of gas and then selectively averaged peak values of the concentration of one liquid in another are determined to provide an accu-rate measurement (62) of the content of water in oil even with the presence of various amounts of entrained gas in the mixture.
Patent CA-2116272-C (CA)
Inventor: YUASA YUUICHI
IPC: H04M3/428
Filed: 1994-02-23
Granted: 1998-02-03
Abstract: According to a call waiting indicating method and system, a selection number consisting of a terminating subscriber number and a predetermined special number dialed by an originating subscriber and requesting an originating subscriber-initiating call waiting service is received.  The received selection number is analyzed to determine whether a terminating subscriber corresponding to the terminating subscriber number rejects the originating subscriber-initiated call waiting service.  A connection request is notified to a busy terminating subscriber speaking to a partner subscriber when it is determined that the terminating subscriber does not reject the originating subscriber-initiated call waiting service.  A response representing approval of OFF-hook is received from the busy terminating subscriber in response to notification of the connection request.  The partner subscriber is temporarily held upon detection of OFF-hook from the terminating subscriber, and a network is driven to connect the terminating subscriber to the originating subscriber.
Patent CA-2116325-C (CA)
Title: Method of accelerating and prolonging flowering in plants
Inventor: SHAFER WARREN E
IPC: A01G7/06
Filed: 1992-10-16
Granted: 1999-05-04
Abstract: Treatment of cotton plants or flowering ornamental plants with a formulation comprising an agent effective to inhibit 1-aminicyclopropane-carboxylic acid synthase activity accelerates the flowering of cotton plants and accelerates and extends flower longevity of flowering ornamental plants, particularly when such flowering plants are subjected to the stresses of the conditions of shipping. A preferred agent is L-trans-2-amino-4-(2-aminoethoxy)-3-butenoic acid (AVG) or a salt thereof.
Patent CA-2119082-C (CA)
Title: Instant game card
Inventor: PARIS MICHEL
IPC: B42D15/00
Filed: 1994-03-15
Granted: 1997-05-13
Abstract: Disclosed is an instant game card, preferably of the BINGO type, having a substrate onto which is printed a series of playing numbers.   An unscratchable translucent varnish is applied onto the substrate and covers the playing numbers.  A scratchable rub-off coating is applied onto the varnish, in such a manner as to surround the playing numbers without hiding the same.  In use, when playing numbers are called,  scratching  of  the  scratchable  rub-off  coating surrounding each playing number that correspond to one of the called numbers, allow a player to visualize the position of the called playing numbers on his or her card.
Patent CA-2124060-C (CA)
Inventor: GRESHAM DAVID M
IPC: B42F11/00
Filed: 1994-05-20
Granted: 1999-09-28
Abstract: A system for releasably and laterally mounting or removing a plurality of booklets including in a preferred embodiment:  1) unitary spines for removably retaining the booklets therein each having at least one upstanding tab on an outer surface thereof and,  2)  a binder for releasably mounting the unitary spines therein, the binder having a plurality of longitudinally extending channels that are spaced apart and parallel to one another and have a ridge for engaging the upstanding tabs on the unitary spines during mounting and removal of the unitary spines in the binder.
Patent CA-2124134-C (CA)
Inventor: SODA CHIHARU
IPC: F16H63/04
Filed: 1994-05-24
Granted: 2004-09-07
Abstract: A drive transmission system for a vessel propelling equipment 1 provided with a clutch operating device that can easily be installed comprises a shift slider 40 axially slidable within a propeller shaft 9 to move a clutch gear 30 through a clutch shifter pin 38 inserted through the propeller shaft; and an operating member capable of operating the shift slider from above a gear case 5; the operating member includes: a shift fork 50 engaged with a fork engaging portion 35c of the shift slider, to move the shift slider; a guide member 59 supporting the shift fork movable in a specific direction; a rotary rod member 55 engaged with a rod engaging section 50b of the shift fork to move the shift fork; and a support member 51 drivably supporting the rod member and fixedly supporting the guide member, thereby sub-assembling the rod member and the guide member to transmit the operation of the rod member to the shift fork; the shift fork is so assembled to be engaged with the fork engaging section of the shift slider by fitting the support member from above in a specific fitting section in the gear case, thereby transmitting the movement of the rod member to the shift slider.
Patent CA-2128394-C (CA)
Inventor: LIEGEOIS DAVID D
IPC: F01P11/12
Filed: 1994-07-20
Granted: 1999-06-08
Abstract: An engine air intake screen assembly having a rotating screen is provided. A blade is positioned directly under the screen to scrape accumulated debris off the inside surface of the rotating screen, and to also chop debris flowing through the screen. The screen covers an opening in a blower housing and rotates when the engine is running. In one form, a set screw allows the clearance distance between the blade and the inside surface of the rotating screen to be adjusted.
Patent CA-2134522-C (CA)
Inventor: ST JOHN JOHN
IPC: B65H39/07
Filed: 1994-10-27
Granted: 2007-02-06
Abstract: An improved bundle transfer apparatus for sheet material in signature form is provided. The apparatus includes a frame having rails on which a bundle transfer vehicle is mounted. The bundle transfer vehicle has a platform which is movable to a position under the signatures and a means for raising the platform and the signatures. The signatures on the bundle transfer vehicle are transferred to an end of the table where it is compressed and tied.
Patent CA-2137514-C (CA)
Inventor: CRITES TIMOTHY E
IPC: A47L9/22
Filed: 1994-12-07
Granted: 1999-05-04
Abstract: An air turbine is provided having an entrance stator blade arrangement formed in two halfs, each containing a blade array, with the two halfs interleaved, upon turbine assembly, to thereby easily form an entrance stator with a multiplicity of entrance stator blades.
Patent CA-2139352-C (CA)
Inventor: SUNDHOLM GORAN
IPC: A62C35/00
Filed: 1993-07-02
Granted: 2005-08-30
Abstract: The object of the present invention is to provide a new installation for fighting fire which is improved over known installations for such units which have a hydraulic system. According to the invention, the hydraulic system is arranged to be driven with water as drive medium, and preferably at least a part of sprinklers or spray heads intended for fighting fire are connected to the power source of the hydraulic system via the pressure line of the hydraulic system. Earlier required double pipe systems and double power sources are no longer necessary; the same system can be utilized for fire fighting as well as for numerous regular hydraulic functions e.g. in a tanker.
Patent CA-2148111-C (CA)
Title: Exercise device
Inventor: STEARNS KENNETH W
IPC: A63B21/008
Filed: 1993-10-26
Granted: 2005-05-10
Abstract: An exercise device (10) has foot supports (30, 32) on which a user stands for performing a stair stepping exercise alone, or a cross country skiing exercise alone, or simultaneously a stair stepping exercise and a cross skiing exercise. Linkage support frames (26, 28) each have a first linkage (44) and a second linkage (36) pivotally connected to each other for maintaining foot supports (30, 32) in a horizontal plane. A fluid cylinder (52) provides a mechanism for resisting the vertical movement of the foot supports (30, 32). Manually gripped poles (60) are mounted to move in coordination with generally horizontal movement of foot supports (30, 32). Separate embodiments of the invention are shown in Figures 5-13 for performing simultaneously a stair stepping exercise and a cross country skiing or walking exercise: An alternative preferred embodiment of the invention which may be folded downwardly for low vertical profile storage is illustrated in Figure 14.
Patent CA-2151583-C (CA)
Title: Valve
Inventor: SUNDHOLM GORAN
IPC: F16K31/122
Filed: 1993-12-17
Granted: 2005-10-04
Abstract: The object of the present invention is to provide a new valve for an installation for fighting fire, in particular for such an installation that operates at a high drive pressure. The valve comprises a spindle with an axial throttle (9) dimensioned in such a manner that the pressure fall over the throttle (9), at operating pressure, is sufficiently great to set the spindle in motion from a first position closing direct connection from the inlet (6) of the valve to its outlet towards a second position opening direct connection from the inlet (6) to the outlet (7). The new valve is reliable and of a simple construction.