baber/WOPTO huggingface dataset:
Patent CA-2015024-C (CA)
Inventor: WINTER-PETER WOLFGANG
IPC: F16H63/20
Filed: 1990-04-20
Granted: 2001-08-07
Abstract: A gear shift mechanism for a manual transmission includes a shaft axially movable for selecting shift planes and rotatable for engaging the gears defining the shift planes, The shaft is held in a reference shift plane by two helical springs. A finger, fixed to the shaft, carries a cam defining detent surfaces engaged by a spring-loaded catch stud. Shift fork rods support shift forks which have arms formed with grooves extending toward a locking plate that is moved axially along the shaft by the shift finger. The locking plate blocks engagement grooves of the unselected shift forks.
Patent CA-2017757-C (CA)
Title: Method for driving display device
Inventor: MAEDA HIROSHI
IPC: G09G3/36
Filed: 1990-05-30
Granted: 1995-02-14
Abstract: A frame thinning out system has been used as a display driving method for making a gradational display with several brightness levels on the screen of a liquid crystal display device and the like.  A display driving method of the present  invention,  sets  a plurality  of  frame time periods,  during which each of pixels on the screen is controlled to display an image,  as one integration time period.  Pixels are turned on only for a number of specified frame time periods corresponding to the desired brightness level.   In this driving method the pixels of the display device are grouped into groups of a plurality of pixels contiguous to each other, the number of pixels to be turned on in each frame time period is selected corresponding to specified gradation data within the same group, so that the number of pixels to be turned on for one frame time period may be equal between subgroups in the scanning lines within the same group, and the frame time period is set to a period so short that a human does not feel flicker.  In this way, a group of pixels as a unit image area,  a gradational display without noticeable flicker can be obtained.  Since no delicate shades of brightness occur among pixels to the same  gradation  level,  the  quality  of  the  display  is improved.
Patent CA-2020433-C (CA)
Title: Power source means
Inventor: HARADA KOSUKE
IPC: H02M3/28
Filed: 1990-07-04
Granted: 1995-12-26
Abstract: The disclosed power source means comprises a direct current (DC) source connected to the primary side of a transformer through a main switching element, a shunt circuit connected in parallel to the main switching element which shunt circuit being a serial circuit having an auxiliary switching element and a capacitor, and a control circuit connected to the main switching element so as to operate the main switching element at a duty ratio for generating a pulse-width-modulated output voltage at the secondary-side of the transformer depending on the duty ratio.  The control circuit is also connected to the auxiliary switching element so as to turn off the auxiliary switching element when the main switching element is closed and to turn on the auxiliary switching element when the main switching element is open.  The auxiliary switching element and the capacitor in the shunt circuit are such that the shunt circuit has a small impedance at low switching frequencies of the main switching element.
Patent CA-2022668-C (CA)
Title: Pipeline padding system
Inventor: KLAMAR ED
IPC: E02D17/12
Filed: 1990-08-03
Granted: 1996-02-27
Abstract: Backfilling apparatus adapted to be moved along a trench by a tractor includes a chassis, a hitch attachable to the chassis on either side, hydraulic cylinder for varying the attitude of the chassis to the hitch, a hopper mounted on the chassis to receive backfilling material, a variable speed conveyor carrying backfilling material from the hopper to an elevated position, a shredder accepting material from the conveyor, an inclined vibrating screen receiving shredded material and discharging padding fill onto the pipe in the trench and oversize material onto the padding fill in the trench.  A grizzly at the hopper mouth can be positioned to discharge large masses of fill on either side or the rear of the chassis.
Patent CA-2023155-C (CA)
Title: Unplasticized polyvinyl-chloride-based moulding compound, process for its production and use
Inventor: BAUMGAERTEL HANS-GEORG
IPC: C08K9/04
Filed: 1990-08-13
Granted: 2001-10-02
Abstract: The invention relates to an unplasticized moulding compound based on polyvinyl chloride including vinyl chloride co- and/or terpolymer and/or blends or alloys thereof with a vinyl chloride or PVC content of more than 70% w/w, preferably more than 85% w/w, and 15% to 0% w/w of at least one impact-modifying polymer, where in addition to any pigments, dyes, lubricants, blowing agents, flame retardants, fillers, reinforcing fibres and other processing aids and additives, the unplasticized moulding compound contains or is comprised of: a. 0.01 to 3 parts by weight of at least one calcium carboxylate; b. 0.01 to 3 parts by weight of at least one zinc carboxylate; c. 0.01 to 3 parts by weight of at least one organic co-stabilizer, selected from the group of at least one B-diketone, organic phosphate and/or dihydropyridine; and d. 0.01 to 5 parts by weight of at least one surface-modifying alkaline earth oxide, one alkaline earth hydroxide and/or one partially hydrated alkaline earth oxide per 100 parts by weight of said PVC mixture or said vinyl chloride copolymer.      The invention further relates to the use of said moulding compound and the process for its production.
Patent CA-2026010-C (CA)
Inventor: JUNKER WILHELM
IPC: E01F9/594
Filed: 1990-01-23
Granted: 1999-06-01
Abstract: The guide device (20) contains a guide  body (21) and a support device (22).  The guide body (21) is constructed as a hollow body similar to a hood, with four adjoining wall areas making up the form (24, 27);  of these, two diametrically opposed wall areas (24) form the broad sides of the guide body (21) and the other two wall areas (27) which are also diametrically opposed, form the narrow sides of the guide body (21)  The wall areas (27) on the narrow side are in the form of a conical surface.  The wall areas (24) on the broad side are mainly flat.  Between the guide body (21) and the holder (22) is a coupling device (23).  On each of the walls (27) on the narrow side, there is a recess cut out (33, 34) above the foot of the guide body (21); this recess has a specific height and extends around the circumference to the transition to the neighboring wall area (24) on the broad side. The holder can be constructed as a base plate (22) for gluing, as a foot plate for positioning or as a foot rack for positioning and ranking of several guide devices (20).
Patent CA-2031459-C (CA)
Inventor: YAMAKAWA AKIRA
IPC: H05K1/09
Filed: 1990-12-04
Granted: 1996-01-23
Abstract: A surface structure of a ceramic substrate  is capable of suppressing diffusion of Ni to an uppermost Au plating layer.  Furthermore, the thickness of the Au plating layer is reduced in accordance with the present invention. In the method of manufacturing the surface structure,  a metallized layer, an Ni layer and an Au layer are formed in this order on the surface of a ceramic substrate.   The substrate is heated in a non-oxidizing atmosphere to cause an alloying reaction between the Ni layer and the Au layer. Thereafter, the uppermost plating layer is formed on the resulting NiAu alloy layer.  Since Ni in the NiAu alloy layer is not easily released, diffusion of Ni into the Au plating layer can be suppressed sufficiently.   Therefore,  the Au plating layer can be significantly reduced in thickness.
Patent CA-2031480-C (CA)
Title: Acetylenes disubstituted with a heteroaromatic group and a substituted phenyl group having retinoid like activity
Inventor: CHANDRARATNA ROSHANTHA A S
IPC: A61K31/341
Filed: 1990-12-04
Granted: 2003-09-09
Abstract: Retinoid like activity is exhibited by compounds of the formula <SEE FORMULA> where R1-R3 independently are hydrogen, lower alkyl, cycloalkyl or lower alkenyl, A and B independently are hydrogen, lower alkyl, cycloalkyl, lower alkenyl, 8R~ or OR~ where R~ is lower alkyl, cycloalkyl or lower alkenyl; Y is pyridyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl or oxazolyl; E is lower alkenyl, lower alkynyl, lower cycloalkyl, lower branched chain alkyl or (CH2)n where n is 0-6; and Z is H, OH, OR', OCOR', -COON or a pharmaceutically acceptable salt, ester or amide thereof , -CH2OH or an ether or ester derivative, or -CHO or an acetal derivative, or -COR' or a ketal derivative where R~ is an alkyl, cycloalkyl or alkenyl group containing 1 to 5 carbons.
Patent CA-2046295-C (CA)
Title: Process for producing lube oil from olefins by isomerization over a silicoaluminophosphate catalyst
Inventor: MILLER STEPHEN J
IPC: B01J29/04
Filed: 1990-02-20
Granted: 1999-08-31
Abstract: The present invention relates to a process for producing a C20+ tube oil from olefins or reducing the pour point of a lube oil comprising isomerizing the olefins over a catalyst comprising an intermediate pore size silicoaluminophosphate molecular sieve and at least one Group VIII metal.
Patent CA-2046800-C (CA)
Title: Press blanket for a pressing device
Inventor: MATUSCHCZYK UWE
IPC: D21F3/02
Filed: 1991-07-11
Granted: 1995-02-21
Abstract: A press blanket for a press device in a paper making machine, or the like, is formed of an elastomeric blanket material and fully embedded layers of reinforcement threads.  The radially inner layer is formed of longitudinal threads which extend parallel to the axis of the press blanket.  The radially outer layer is formed of circumferential threads which are wound in the direction of blanket motion and are would generally helically.  The threads are fully surrounded by the layer of elastomeric material which is of homogeneous, that is formed from a single pouring.  The circumferential threads have a diameter of at most 1/500 of the outside diameter of the fully rounded press blanket.  In a unit area of the press blanket, the tensile strength of the circumferential threads is at least 40% greater than the tensile strength of the longitudinal threads.  An apparatus for forming such a press blanket includes a rotatable pouring cylinder on which the longitudinal threads are supported, an elastomeric material pouring nozzle which moves longitudinally over the pouring cylinder and an unwinding device for delivering the circumferential threads in a helical manner and located just after the pouring nozzle above the pouring cylinder.
Patent CA-2047114-C (CA)
Title: Linear bearing assembly
Inventor: MUGGLESTONE PETER R
IPC: F16C29/06
Filed: 1991-07-16
Granted: 1995-02-21
Abstract: A linear bearing assembly is provided including a housing for receiving a plurality of axial ball retainers and bearing plates therein.  The housing includes a pair of end caps disposed in both longitudinal ends of the bearing assembly with the end caps having a plurality of angled ball turnarounds formed therein.  The bearing plates and axial ball retainers form portions of a plurality of ball tracks with the bearing plates having grooves formed in an inner radial surface thereof for defining a top radial portion of the load bearing paths and circumference grooves defining side walls of the return paths.  The bearing plates and axial ball retainers are arranged so as to allow optimization of ball track quantities to radial height of the overall bearing assembly and thus increase ball track quantities and load/life characteristics of the bearing assembly.
Patent CA-2051018-C (CA)
Title: Planetary gear transmission
Inventor: HOTTA TAKASHI
IPC: F16H3/66
Filed: 1991-09-09
Granted: 1995-03-21
Abstract: A planetary gear transmission typically for use on automobiles has first, second, and third planetary gear trains arranged coaxially with each other and each having elements including a sun gear, a carrier, and a ring gear.          Two of the elements of each of the first, second, and third planetary gear trains are directly or disengageably coupled to elements of the other planetary gear trains.  The trans-mission also has three clutch means and two brake means for selectively establishing a power transmitting path from an input shaft to an output gear member through the first, second, and third planetary gear trains.  At least one of the first, second, and third planetary gear trains comprises a double-pinion planetary gear train, one of the sun gear and the carrier of the double-pinion planetary gear train being coupled to the input shaft and the other being nonrotatably fixed.  The elements of the first, second, and third plane-tary gear trains are corotatably coupled into first, second, third, fourth, and fifth rotational members in a speed dia-gram, the third and fifth rotatable members being coupled to the input member, the fourth rotational member being coupled to the output member.  The carrier of the double-pinion planetary gear train may be coupled to the input shaft, and the sun gear thereof may be nonrotatably fixed.
Patent CA-2062695-C (CA)
Title: Holding means
Inventor: SELZER KLAUS
IPC: A61F5/44
Filed: 1992-03-11
Granted: 1998-07-14
Abstract: Holding means  for holding a urine bag on a user's  leg, especially thigh,  having a first knitted hose part which may be pulled over the leg, a second knitted hose part of the  same  diameter  which,  via  a  continuous  connecting region,  is connected to the first knitted hose part and which,  for the purpose of securing the urine bag, may be folded upwardly onto the first knitted hose part, as well as  a  separating  region  in  the  connecting  region  for permitting the passage of an outlet of the urine bag when the knitted hose parts are in a folded condition.
Patent CA-2066897-C (CA)
Title: Fiber treatment agent
Inventor: MIKAMI RYUZO
IPC: C08K5/00
Filed: 1992-04-23
Granted: 2002-05-21
Abstract: A fiber treating agent which is a silicone modified polyester in which a polyester has a polyorganosiloxane grafted thereto. The grafted polyester is the reaction product of an allyl ether containing polyester and a polyorganosiloxane wherein at least one of the silicon atoms of the polyorganosiloxane has a hydrogen atom attached thereto. Preferably, the hydrogen atom is attached to one terminal end of the polyorganosiloxane. The reaction product is modified by reacting the reaction product with a polycarboxylic anhydride, and the amine salt of the modified reaction product may be formed by reacting the modified reaction product with an aminoalkylalkoxysilane. Methods of treating fibrous materials are also described.
Patent CA-2067301-C (CA)
Inventor: MOTEGI TAKAMASA
IPC: H04B17/00
Filed: 1992-04-28
Granted: 1997-02-25
Abstract: A receiver with an individual selective call function includes a ROM for storing an individual selection number in which a secret number of the receiver is registered.  A data control unit compares a secret number registered in its own memory and the secret number registered in the individual selection number ROM of the receiver, and when they are not equal, the read/write operation of the individual selection number ROM is disabled.
Patent CA-2076890-C (CA)
Title: Mnemonic and synonymic addressing in a telecommunications system
Inventor: BOGART FRANK JEFFREY
IPC: H04L29/12
Filed: 1992-08-26
Granted: 1997-04-08
Abstract: Symbol sequences of varying lengths and having logical meanings other than as network addresses (e.g., subscriber names), are assigned and used as actual telecommunications network addresses, without imposition of predefined fixed lengths, formats, or orderings on their constituent segments (e.g., given name, surname), in a call-processing arrangement that uses stored definitions of syntax and grammar of the network numbering plan.  The syntax definitions include definitions of individual address segments, called symbol strings, which have logical meanings. Each string's definition includes a string length range, a string type, and an indicator of the string's influence on call treatment (e.g., route) selection.  The grammar definitions include a matrix that defines permissible sequences of string types,including string types which cannot be dialed by users but only result from receipt of permissible sequences of strings of user-dialable types, and a matrix that defines which string types' influences on call treatment selection may be combined to select a treatment for a call.  A network digit analysis function parses a received call-control symbol sequence by using the stored syntax and grammar definitions to select a treatment for the call.
Patent CA-2080020-C (CA)
Title: A method of forming a refractive index grating in an optical waveguide
Inventor: KASHYAP RAMAN
IPC: G02B6/00
Filed: 1991-03-26
Granted: 1995-06-27
Abstract: An optical fibre (2) is fixed against a first face (4) of a prism (5). A coherent beam of optical radiation (7) is directed at the prism (5) such that a portion B propagates directly to the first face (4) while a second portion (A) propagates via total internal ref-lection at a second face (8). The interference of the two portions creates a refractive index grating in the fibre (2) at a wavelength longer than that of the radiation (7). The method provides a stable and simple method of sidewriting of waveguide gratings.
Patent CA-2086747-C (CA)
Title: Low friction seal assembly
Inventor: JAY RICHARD DANIEL
IPC: F16J15/32
Filed: 1991-07-10
Granted: 1998-01-27
Abstract: A lubricant seal assembly (10) adapted for installation in an annular clearance space between a shaft (12) and a surrounding housing (14). The assembly (10) includes inner (16) and outer case (18) members that can be press fit on the shaft (12) and housing (14). An annular bumper element (29) is arranged between confronting surfaces of the case members (16, 18) to limit excessive telescopic motion of the members (16, 18) during the installation process. The bumper element (29) is formed of a fusible material, such that during an initial break-in period frictional heat melts some of the bumper material to quickly produce a low friction seal assembly.
Patent CA-2091058-C (CA)
Title: Methylen-oxindole derivatives and process for their preparation
Inventor: BUZZETTI FRANCO
IPC: A61K31/40
Filed: 1992-07-10
Granted: 2004-03-30
Abstract: The invention provides new methylen-indole derivatives of formula (I), wherein R is a group (a) in which R4 is hydrogen, hydroxy, C1-C6 alkoxy, C2-C6 alkanoyloxy, carboxy, nitro or NHR7, wherein R7 is hydrogen or C1-C6 alkyl; R5 is hydrogen, C1-C6 alkyl or halogen; and R6 is hydrogen or C1-C6 alkyl; n is zero, 1 or 2;  R1 is hydrogen, C1-C6 alkyl or C2-C6 alkanoyl; R2 is hydrogen, C1-C6 alkyl, halogen, cyano, carboxyl, nitro or -NHR7 in which R7 is as defined above; R3 is hydrogen, C1-C6 alkyl or C2-C6 alkanoyl; and the pharmaceutically acceptable salts thereof; and wherein, when, at the same time, R2 is hydrogen, C1-C6 alkyl, halogen or cyano and R3 is hydrogen, R1 and n being as defined above, then at least one of R4, R5 and R6 is other than hydrogen, which are useful as tyrosine kinase inhibitors.
Patent CA-2091499-C (CA)
Title: Large angle broadband multilayer deflectors
Inventor: NORMANDIN RICHARD J F
IPC: G02F1/295
Filed: 1993-03-11
Granted: 2003-07-08
Abstract: An optical signal deflector comprising an optical signal waveguide formed of plural layers of optically non-linear semiconductor material, apparatus for launching a first optical signal in the waveguide in a first direction which is parallel to the layers, apparatus for applying a second optical signal to the waveguide in a second direction parallel to the layers but at an angle to the first direction, the thickness and indexes of refraction of the layers being predetermined to cause non-linear field contributions of the signals to add in phase in the for field, whereby a third optical signal is obtained having an angle of emission which is the three dimensional vector addition, at a harmonic sum frequency, of the first and second signals.
Patent CA-2093282-C (CA)
Inventor: SIPOS TIBOR
IPC: A61K9/22
Filed: 1993-04-02
Granted: 1999-01-12
Abstract: Disclosed are slow, controlled rate-release devices for releasing a pharmaceutically active agent into the oral cavity by the dissolving action of the saliva, and a method of preparing such devices.
Patent CA-2099201-C (CA)
Inventor: LEACH EDWIN F II
IPC: B23K1/00
Filed: 1993-06-25
Granted: 2003-04-08
Abstract: A process for manufacturing a jewelry piece such as a ball earring pin which includes a predetermined length of the solder-filled wire that serves as both an earring wire post and domed cup for seating and attachment of an ornament, namely, the ball of a ball earring. At one end of the wire, the wire casing is flared back and separated from the core thereby exposing a nib of solder. The wire casing which is separated from the core is formed into the shape of a domed cup complimenting with the curvature of the ball. The nib which extends into a hole in the ball is then heated to melt the solder such that the ball is secure within the cup after the solder cools.
Patent CA-2113859-C (CA)
Inventor: BYAM MATTHEW D
IPC: B05B12/14
Filed: 1994-01-20
Granted: 1999-12-07
Abstract: A system for changing the coating material type supplied to a dispenser includes a manifold having a passageway through which the coating material flows during its selection.      A number of other passageways intersect the first passageway.      Supply valves mounted to the manifold control the flow of coating material through a selected one of the intersecting passageways into the first passageway. The mechanism fox actuating the flow control is controllable by an air signal positioning the control member and thereby controlling the supply of coating material to the first passageway. The manifold and valve bodies include second passageways that are coupled to a source of air under superatmospheric pressure. A valve controls the flow of air through the second passageway from the compressed air source to the interior of each valve body. By incorporating the second passageways into the manifold and valve bodies themselves, the distance the air signal must pass from the electrically operated valve to the control mechanism is minimized to advantage.
Patent CA-2114739-C (CA)
Title: Diamond film coating for mating parts
Inventor: SIMPSON MATTHEW A
IPC: C23C16/27
Filed: 1994-02-02
Granted: 2003-01-14
Abstract: At least one of the mating wear surfaces of a sliding mechanical seal is coated with diamond. The coating includes an underlayer of high resistance to wear and an overlayer with a reduced resistance to wear as compared to that of the underlayer.   The reduced wear resistance of the overlayer prevents damage by the diamond to the opposing mating surface during the wear-in period of use.
Patent CA-2120046-C (CA)
Inventor: SAMUELS ALVIN
IPC: B01D53/86
Filed: 1994-03-25
Granted: 1999-09-14
Abstract: The present invention provides a method for separately removing mercaptans and hydrogen sulfide from a gas stream by passing the gas through a bed which includes iron oxide which catalyzes the formation of disulfides and trisulfides from mercaptans and also reacts with at least part of the hydrogen sulfide to form acid-stable solids; causing the di- and trisulfides to exit the bed in the gas phase; and removing and recovering the di- and trisulfides by adsorption or condensation.      Any remaining hydrogen sulfide may be scavenged from the gas stream by passage through a bed containing iron oxide similar to that used first above.