baber/WOPTO huggingface dataset:
Patent CA-2123658-C (CA)
Inventor: SMITH WILLIS H JR
IPC: G02F1/13
Filed: 1994-05-16
Granted: 1999-01-19
Abstract: A substrate is treated prior to use to induce a near-parallel orientation of a liquid crystal director relative to the substrate.  A layer of silica is deposited on the substrate by in-line magnetron sputtering as the substrate is moved past the sputtering target, and the silica-coated substrate is thereafter treated with an alcohol that is selected from one of two classes of alcohols: (1) alcohols having an aromatic ring structure on one end of an aliphatic chain and a hydroxy group on the other end, with or without at least one ether group in the chain, and (2) an aliphatic chain having a hydroxy group at one end and at least one ether linkage in the chain.  An example is 2-phenylethanol.  The alcohol-treated substrate is covered with a layer of the liquid crystal.   The process of the invention induces a tilt to the director of the liquid crystal.   The tilt is about 0.5° to 4°, as measured parallel to the surface of the substrate.
Patent CA-2125710-C (CA)
Title: Composite pressure roll
Inventor: CERRAH KENNETH M
IPC: F16C13/00
Filed: 1994-06-13
Granted: 1999-11-23
Abstract: A pressure roll that forms a fusing nip with a fuser roll in a fusing system has a core and a surface coating having been heat cured from a composition of a fluorocarbon polymer and an irregularly shaped, nonplanar, inert filler having a hardness greater than 8 Mohs, the filler having a nominal particle size of from about 10 to 30 microns and being present in the cured surface coating in an amount of from about 10% to 40% by weight of the total solids weight of the coating.
Patent CA-2132237-C (CA)
Inventor: ISHII KIYOSHI
IPC: B29K105/22
Filed: 1994-09-16
Granted: 2000-05-23
Abstract: To reduce the need for manual work, improve productivity and reduce the fabrication cost in the method for molding a lead screw for converting a rotational movement into a linear movement, there are provided a method and a die assembly which may involve the steps of forming a plurality of holes in a wall of a tube in a spiral arrangement, preparing a metallic die assembly provided with a cavity defining a thread groove adapted to form the thread crest matching in position with an array of the holes, placing the tube in the cavity, and injecting synthetic resin material into the cavity so that the synthetic resin material may flow in two separate flows, one flowing inside the core tube, and the other flowing along the outer surface of the core tube. The thread crest is connected to the synthetic resin material filled in the core tube, and can be securely attached to the core tube. Optionally, an annular rotor may be fitted onto the base end portion of the lead screw. The synthetic resin material is first filled into the annular gap defined around the annular rotor before it is filled into the interior of the annular rotor so that the rotor may be prevented from being damaged by the tensile stress produced by internal pressure acting on the annular rotor.
Patent CA-2137506-C (CA)
Title: Memory access protection circuit with encryption key
Inventor: LEE YOUNG W
IPC: G06F21/00
Filed: 1994-12-07
Granted: 1998-11-24
Abstract: A data verification system including a circuit verifies that unlocking data generated by a microprocessor to be written into the ASIC before a memory write is valid. The microprocessor is programmed to generate an ASIC address when unlocking data is to be written to the ASIC and to encrypt and decrypt that data. The verifying circuit unit receives the encrypted data and decrypts the encrypted data and compares the decrypted data with the encrypted data. The verifying circuit generating an enable signal only if the comparison is true. An address decoding unit is provided for receiving the memory address signal and causing a memory write enable signal to be generated for the memory unit only if the verifying circuit unit has generated an enable signal. Registers unit in communication with the data bus and the verifying circuit unit are provided for writing decryption parameters in the register unit in accordance with the programming of the microprocessor during power-up of the microprocessor.
Patent CA-2137553-C (CA)
Inventor: HUGHES SHAUN N G
IPC: A41D31/00
Filed: 1993-05-11
Granted: 1999-04-06
Abstract: A fabric having both a high degree of user comfort and a high degree of Ultravio let Radiation protection is provided. The preferred yarn is at least 40 Denier by 40 Denier, preferably 70 Denier by 2 \\ 7 0 Denier Nylon Yarn. The yarn is woven into a fabric with a yarn count of at least 80 by 50, preferably about 118 by 68 yarns per inch. The fabric is sanded, preferably moderate to heavy, on one side. The fabric is jet treated, preferably air jet laundered. The fabric provides an Ultraviolet sun protection factor of at least about 30, preferably about 70 or more.
Patent CA-2138893-C (CA)
Title: Package structure for optical element and fibers and composite structure thereof
Inventor: NAGATA HIROTOSHI
IPC: G02B6/30
Filed: 1994-12-22
Granted: 1999-12-07
Abstract: An optical element-optical fiber composite structure having a high resistance of the optical fiber to breakage due to cyclical change in temperature, includes a package structure having a main container, side containers attached to the main container and sleeves through which a main chamber of the main container is connected to side chambers of the side containers; an optical element housed in the main chamber; and optical fibers introduced into the main chamber through the side chambers and the sleeves and connected to the optical element.
Patent CA-2139616-C (CA)
Title: Mounting arrangement of the bars supporting the grippers in map-making or security-paper printing machines
Inventor: ORLANDINI DANTE
IPC: B65H29/04
Filed: 1995-01-05
Granted: 2005-03-08
Abstract: Mounting arrangement of the bars supporting the grippers in a map-making or security-paper printing machine, wherein each bar consists of a pair of parallel tubular rods and is supported at its opposite ends on two transport chains slidable along two parallel fixed guides, each bar end being mounted on a pair of pins fixed to the chains and projecting therefrom towards said bar. Between said bar ends and said pairs of support pins there is interposed an intermediate support, formed by two elements apt to slide telescopically one in respect of the other in a direction parallel to the sliding plane of the chains, one of said elements, in the form of a plate, comprising two transversal bores to house said pins of the chain, while the other element, in the form of a slide, is fixed to an end of the bar and is slidably mounted on said plate.
Patent CA-2141696-C (CA)
Title: Media disk storage container with printed paperboard sheets
Inventor: ROTH RICHARD
IPC: B65D85/57
Filed: 1995-02-02
Granted: 2000-04-11
Abstract: A media disk storage container includes a lid and a base connected by a hinge, both the lid and the base having inner and outer surfaces for receiving separate sheets of printed paperboard. The outer surfaces of the lid and base are recessed to protect the paperboard sheets adhered thereto from being damaged by contact with other surfaces. The base includes a recessed spine for receiving an extension of the paperboard sheet which covers the outer surface of the base, so that identifying printed matter can be displayed on the spine. Likewise, the lid includes a recessed section along its upper sidewall for receiving an extension of the printed paperboard sheet which covers the outer surface of the lid.
Patent CA-2150830-C (CA)
Inventor: LUCE DAVID A
IPC: G01M11/02
Filed: 1995-01-30
Granted: 1998-05-26
Abstract: A polar or vector display (26) provides an operator of an optical instrument with a symbolic instruction regarding the direction and amount of motion required to center an optical element (16) on a chosen path.
Patent CA-2155921-C (CA)
Inventor: PATRIKAINEN TAPIO
IPC: B01D53/56
Filed: 1995-08-11
Granted: 2004-01-20
Abstract: Process for removing nitrogen oxides from the flue gases of a soda recovery boiler of a pulp mill.        In the method, to the flue gases of the soda recovery boiler is at first fed an oxidizing agent, such as chlorine dioxide or ozone, which oxidizes nitrogen oxide to nitrogen dioxide. Subsequently, the flue gases are led into a flue gas scrubber, in which a reagent coming from the circulation of chemicals of the pulp mill is injected into the flue gases, which reagent brought into contact with the nitrogen dioxide reduces the nitrogen dioxide to nitrogen. The flue gas contain-ing nitrogen is led out of the scrubber and the oxidized reagent is led back to the circulation of chemicals of the pulp mill.
Patent CA-2156426-C (CA)
Inventor: PERCIVAL ROBERT MICHAEL
IPC: H01S3/094
Filed: 1994-02-11
Granted: 1999-11-16
Abstract: A laser has a resonant cavity defined by a pair of mirros (3, 5) butted to respective ends of a fluorozirconate optical fibre (1). The fibre (1) has a numerical aperture of 0.205 and an LP11 mode cut-off of about 2.0µm. The fibre (1) is co-doped with thulium ions to a concentration of about 0.1%, and with terbium ions to a concentration of about 1 %. An optical pump source (6) provides a pump signal at 775 nm which excites the thulium ions into the 1G4, energy level to provide lasing at about 475 nm. The pump source is preferably a high power semiconductor laser (16).
Patent CA-2157243-C (CA)
Title: Medication delivery pen with variable increment dose scale
Inventor: CHANOCH LAWRENCE H
IPC: A61M5/315
Filed: 1995-08-30
Granted: 1999-05-11
Abstract: A medication delivery pen is provided having a pen body assembly and a cartridge assembly that are threadedly engageable with one another. The pen bodyassembly includes a rotatable driver for driving a cartridge plunger preselecteddistances that are in accordance with a desired dose of medication to be delivered. The driver providing different preset rates of injection.
Patent CA-2158021-C (CA)
Title: Copy protection for hybrid digital video tape recording and unprotected source material
Inventor: RYAN JOHN O
IPC: G11B5/86
Filed: 1994-03-04
Granted: 2003-05-13
Abstract: A hybrid digital/analog video recorder prevents both analog and digital copying. The recorder (including a digital tape deck) inputs and outputs both analog and digital video signals. At the analog input, a detector detects conventional copy protection in the analog input video, and in response disables recording thereof.  At the digital input, a first detector detects anti-copy bits present in the input material and in response prevents recording.  A second bit detector detects serial copy prevention scheme bits, and in response adds an anti-copy bit to the input digital stream, preventing later copying of such material. When another bit detector detects anti-copy bits present in the playback digital data stream prior to conversion to analog, an analog copy protection signal modifies the output analog signal, inhibiting copying of the output signal. In another version, a specially adapted video recorder or playback device copy protects video source material which for technical reasons is not copy protectable.  A copy protect "flag" is provided in a predetermined location in the video signal to be protected. The video recorder or playback device, upon detection of the flag at playback, modifies the output standard (NTSC) video signal with a conventional copy protection  process.
Patent CA-2159833-C (CA)
Title: Laying and transporting apparatus
Inventor: KONNO KENICHI
IPC: G02B6/50
Filed: 1995-01-31
Granted: 1999-01-19
Abstract: A laying or transporting apparatus includes a pipe (9) having a longitudinal slit (6) throughout the full length, a moving member (23) inserted into the pipe (9) and driven along it by compressed air fed into the pipe (9), and a connecting member (1) that consists of a wire passing through the slit and connected at its inner end to the moving member (23) inside the pipe and at its outer end to a material (15) to be laid. A wire material (8) for sealing, which can close the slit (6), is disposed inside the pipe (9) throughout its full length, and a guide groove (7) for guiding the sealing wire material (8) in such a manner as to close the slit (6) at the time of movement of the moving member (23) is preferably provided on the moving member (23). The laying operation can be carried out by a smaller number of workers and the laying time can be reduced much more drastically that in the prior art apparatuses. The laying operation can be carried out efficiently and safely even at a high place, a complicated place or a course.
Patent CA-2160498-C (CA)
Inventor: KOZUMPLIK NICHOLAS JR
IPC: F04B43/06
Filed: 1995-10-13
Granted: 2006-10-10
Abstract: A reduced icing air valve for an air motor or a reciprocating double diaphragm pump is described. A shiftable valve having a pilot piston for shifting the valve for alternatively supplying compressed air through first and second supply ports to opposed first and second power pistons in opposed air motor chambers or first and second opposed diaphragm actuating chambers, respectively, and for effecting alternating exhaust of the chambers. The shiftable valve is further provided with a bypass independent of and intermediate the shiftable valve and each of the first and second air motor chambers or first and second diaphragm actuating chambers for bypassing the shiftable valve by exhaust air from the air motor chambers or diaphragm actuating chambers. The bypass means is furthest actuated in an opposing direction by a source of supply air to the chambers.
Patent CA-2160712-C (CA)
Title: Novel 1,3-benzodioxole and 1,2-dialkoxybenzene derivatives as ocular hypotensive agents
Inventor: BURK ROBERT M
IPC: A61K31/38
Filed: 1994-04-18
Granted: 2005-12-27
Abstract: Compounds of formula (I), when W is (CH2)n where n is 1 or 2, or n is 0 and W  represents lower alkyl groups attached to each oxygen; m is an integer between 1 and 8; R1 is COOH or a pharmaceutically acceptable salt thereof, COOR4, CONR5R6, CONR5SO2R7, CH2OH, CH2OR7, CH2O-COR7, CH2O-CONR5,R7, CH2OCOOR7, CH2NH2, CH2NR5R6, CH2NR5COR7, CHO, CH(OR8)2, CHOR9O, -COR10, CR10(OR8)2, or CR10OR9O, where R4 is an alkyl group of 1 to 10 carbons, or a cycloalkyl group of 5 to 10 carbons, or R4 is phenyl or lower alkylphenyl, R5 and R6 independently are hydrogen, an alkyl group of 1 to 10 carbons, or a cycloalkyl group of 5 to 10 carbons, or phenyl or lower alkylphenyl, R7 is alkyl of 1 to 10 carbons, phenyl or lower alkylphenyl, R8 is lower alkyl, and R9 is divalent alkyl radical of 2 - 5 carbons, R10 is an alkyl OR cycloalkyl containing 1 to 5 carbons; R2 is H, COR7, R7, CO-OR7, CO-NR5,R7, PO(OH)OR7, PO(OR7)2, POR7OH, or POR7(OR7); R3 is lower alkyl, phenyl, lower alkyl or halogen substituted phenyl, phenyl substituted lower alkyl, or heteroaryl substituted lower alkyl, are capable of lowering introaocular pressure in the eye of a mammal.
Patent CA-2160822-C (CA)
Title: Graphical user interface for multimedia call set-up and call handling
Inventor: ALTOM MARK W
IPC: G06F3/033
Filed: 1995-10-18
Granted: 2000-12-12
Abstract: A graphical user interface, i.e., multimedia communications application program, for setting up and handling a multimedia call is disclosed that employsrealistic metaphors of real life face-to-face meetings in setting up and handling a multimedia call to establish a virtual meeting which is automatically reconfigured in response to user action. This is realized by taking advantage of prospective virtual meeting participants' already existing knowledge of how real life face-to-face meetings operate. To this end, the multimedia communications application programenables the virtual meeting participants through direct manipulation of the realistic graphical metaphors to establish a realistic virtual meeting room which is displayed on the screen of their workstation monitor. The virtual meeting room includes a table and chairs arranged in a realistic manner in the virtual meeting room. The virtual meeting room and table are automatically configured in response to user action in such a manner as to minimize the screen area displaying the virtual meeting room and, thereby, maximizing the screen area available for multimedia collaboration by the meeting participants. An empty chair is displayed at the table which indicates that at least one more participant can be added to the virtual meeting. Once a predetermined maximum number of participants have been included in the virtual meeting, the empty chair is no longer displayed.
Patent CA-2167707-C (CA)
Inventor: PALMER IAN D
IPC: E21B43/00
Filed: 1995-05-23
Granted: 2006-03-21
Abstract: A method is disclosed for increasing the methane recovery rate through a wellbore which penetrates a coal seam. The invention utilizes the cavitation of the coal seam surrounding the wellbore after a substantial percentage of the original methane-in-place which is available for recovery from the wellbore has been recovered from the coal seam.
Patent CA-2169051-C (CA)
Title: Rye-flour
Inventor: WASSERMANN LUDWIG
IPC: A23L7/10
Filed: 1994-07-28
Granted: 1999-09-07
Abstract: The invention concerns rye-flours with either less than 7 wt% protein or with more than 12 wt% protein. These Hours can be obtained as the result of classification of rye-flour with 7-12 wt% protein.
Patent CA-2169481-C (CA)
Inventor: WILLIAMSON JOSEPH R
IPC: A61K31/195
Filed: 1994-08-23
Granted: 1999-11-16
Abstract: L'invention se rapporte à un procédé servant à inhiber la formation d'oxyde nitrique chez un mammifère à sang chaud souffrant d'une maladie inflammatoire aiguë ou chronique, ledit procédé comprenant l'administration à ce mammifère d'une quantité de méthylguanidine, ou de 1,1-diméthylguanidine, ou de guanidines amino-substituées, suffisante pour inhiber la formation d'oxyde nitrique.
Patent CA-2170778-C (CA)
Title: Production of 2,3,5,6 -tetrachloropyridine
Inventor: SHVO YOUVAL
IPC: C07D213/61
Filed: 1994-09-02
Granted: 1999-04-27
Abstract: A novel, simple, high-yield process for the production of 2,3,5,6-tetrachloropyridine comprises reacting an ester of 2,2,4-trichloro-4-cyanobutyric acid with excess phosphorus oxychloride in the presence of a catalytic amount of hydrogen chloride and optionally in the presence of an aprotic inert solvent, at a temperature of 100-160 °C, preferably at 120-140 °C for about 5-10 hours, under elevated pressure, if necessary.
Patent CA-2171576-C (CA)
Inventor: HOSAKA HIROSHI
IPC: H01H50/36
Filed: 1996-03-12
Granted: 1999-04-06
Abstract: A matrix relay is formed with a plurality of latching relays arranged in a matrix and mounted on a base of an electrically insulative material. Each of the latching relays comprises an excitation coil, permanent magnet, a pair of first and second fixed contacts, and an armature carrying a pair of first and second movable springs each providing movable contacts. The armature is magnetically coupled to the excitation coil so as to be movable in response to energization of the coil by current of selective polarity between close and open positions of the fixed and movable contacts. A plurality of the armatures of the latching relays arranged in a row of the matrix are assembled into a single armature block to be mounted on the base as a single unit. The armature block comprises a single pair of first and second supporting members made of an electrically conductive material. All of the first movable springs and all of the second movable springs of the latching relays of the armature block are connected respectively to the first and second supporting members mechanically and electrically, so that two row paths for electrical signals common to the latching relays arranged in the row of the matrix are provided. This simplification of the structure and electric circuit of the matrix relay would be useful to small-size the matrix relay without complicated fabrication process.
Patent CA-2176158-C (CA)
Title: Gas sensing system
Inventor: CULLEN WILLIAM LEE
IPC: G01N1/26
Filed: 1996-05-09
Granted: 2005-10-11
Abstract: The invention relates to apparatus used for the detection of hazardous vapours or gases and includes a length of tubing, a first portion of the tubing provided with a number of spaced apart orifices, that first part of the tubing being located adjacent to or associated with a source of, for example, H2S gas. The tubing is connected to a pump which is associated with gas detection apparatus.
Patent CA-2178298-C (CA)
Title: Truncheon holster
Inventor: CLIFTON NORMAN E JR
IPC: F41C33/02
Filed: 1996-06-05
Granted: 2005-08-16
Abstract: Holster (FIGS. 1, 5, 8) for a truncheon (28, 40-42, 54-56), the holster being a unitary folded inflexible sheet which is folded along a front portion (33) and having meeting edges along a rear portion (14), and a transverse screw-and-nut combination (51-53) connecting the two folded portions of the sheet to provide an adjustment to the clamping action of the holster to the truncheon. An optional keeper strap (18) with a quick-opening fastener (19), and a thumb-engageable tab (21) may be included to maintain the truncheon securely in the holster until the tab (21) is pushed to open the holster. A pivotable belt loop member (I7) is attached to the holster and is adjustable (26, 27) to provide convenient positions for supporting the holster and truncheon in any position.
Patent CA-2180115-C (CA)
Inventor: DEGNAN THOMAS FRANCIS JR
IPC: C07C4/06
Filed: 1995-01-25
Granted: 2006-03-21
Abstract: This invention relates to the catalyst composition resulting from the additi on of phosphorus, and optionally, a matrix material, to a porous crystalline material having the structure of MCM-22. The addition o f phosphorus to the MCM-22 is found to improve the hydrothermal stability of the resulting catalyst. The improved catalyst is u seful in organic conversion processes, e.g., catalytic c racking processes.
Patent CA-2180152-C (CA)
Title: Apparatus and methods for making transmission holograms
Inventor: MOLTENI WILLIAM J
IPC: G03H1/04
Filed: 1995-12-15
Granted: 2004-10-12
Abstract: Apparatus and methods are provided for mass production of transmission holograms onto a continuous web (30) of photosensitive material, one method involving the mounting of a master transmission hologram (34) onto the outside surface of a clear hollow drum (20), the clear hollow drum being rotatable and having means (24) for directing an irradiating wavefront propagated from a radiation source (70) through the master transmission hologram (34) onto a passing recording medium (30) in a predetermined direction, the directing means (24) configured so that said predetermined direct on is fixedly maintainable independent of the rotation of the hollow drum (20) and the master transmission hologram (34) mounted thereon. The redirected irradiating wavefront transmitted through the master transmission hologram (34) generates an object beam and a "zero order" reference beam, said object beam and "zero order" reference beam combine to form an interference pattern, the interference pattern being recorded on the photosensitive recording medium (30).