baber/WOPTO huggingface dataset:
Patent CA-2025441-A1 (CA)
Title: Venetian blind with the capability of regulating its length and width
Inventor: HSU CHI-HSIEN
IPC: E06B9/26
Filed: 1990-09-14
Abstract: ABSTRACT         The invention relates to a venetian blind used to regulate the intensity of indoor light and to shade the sun light in living environments, the venetian blind having the capability of being adjusted in length and width.  The blind comprises a sky rail and a lower beam which are mutually latched in a tri-sectional mode and have the capability of expanding and contracting, fixing slices at the hole positions of the pulling rope on the lower beam to provide the ladder rope and the pulling rope fixing positions wherein holes of the pulling ropes on both sides of the blind are elongated holes, and basic components of known venetian blinds.  It is only necessary to cut the extra part of the blind to regulate the width by contracting the sky rail and the lower beam, to pull down the end of the pulling rope to let the pulling rope be fixed by the fixing slice and move the lower beam upward, and to cut the extra blinds to regulate the length.
Patent CA-2025871-A1 (CA)
Title: Solid state laser device for lithography light source and semiconductor lithography method
Inventor: ITANI AKIRA
IPC: G02F1/35
Filed: 1990-09-20
Abstract: ABSTRACT     The present invention is devised in consideration of the above-mentioned state of affairs and attempts to actualize a compact solid state laser device of a wavelength as short as that of an excimer laser as a light source for lithography.    The present invention relates to a device characterized in providing a solid state laser and nonlinear optical materials which convert a solid state laser ray of light output from the solid state laser in wavelength into a ray of light of a short wavelength and using them as a light source for lithography.          Also, the present invention relates to a semiconductor lithography method characterized in converting a laser ray of light output from a solid state laser In wavelength into a ray of light of a short wavelength using nonlinear optical materials and drawing semiconductor circuit patterns by use of the laser ray of light of a short wavelength.    Using the present invention, a light source which copes with the degree of integration of ICs after the 16MDRAM and is suitable for IC manufacturing processes can be obtained by a more safe and more simply constituted solid state laser compared with an excimer laser, thereby allowing accurate semiconductor circuit patterns to be formed.
Patent CA-2027508-A1 (CA)
Title: Wiping fabric and method of manufacture
Inventor: AUSTIN JARED A
IPC: D04H5/02
Filed: 1990-10-12
Abstract: ABSTRACT A nonwoven fabric having high performance aqueous fluid retention and wiping characteristics and a method of producing such fabric.  The fabric comprises a reinforcing web of self-bonded continuous filament synthetic fibers having at least one surface with spaced clusters of synthetic staple fibers and short natural fibers generally surrounded by void areas having a concentration of synthetic staple fibers and short natural fibers which is lower than such concentration in the clusters.  The desired pattern of clusters may be obtained by hydroentanglement using a coarse apertured forming surface.
Patent CA-2027541-A1 (CA)
Title: Guide for an extension, a drawer or the like
Inventor: FAUST KARL-VOLKER
IPC: A47B88/04
Filed: 1990-02-23
Abstract: Abstract Guide for an extension, a drawer or the like A guide for an extension, a drawer (11) or the like with an outer rail (13) and a guide rail (14) as well as a detent mem-ber (15) should be designed so as to guarantee a secure lock be-tween the guide rail (14) and the detent member (15) even under extreme loads.  To this end, the detent member (15) has a resil-ient leg as well as a lever (18) connected thereto, whereby at least the end of the leg (16) facing away from the lever (18) is fastened to a section of the detent member (15) that can be fixed-ly secured, for example, to a drawer (11).  In the event of high tensile loads, the projection of the detent member between the lever (18) and the attachment of the leg (16) to the detent member (15) is tightly caught in the recess of the guide rail (14) so as to virtually prevent an undesired release even under high loads.     (Figure 2)
Patent CA-2033558-A1 (CA)
Title: Real-time wireless audience response system
Inventor: NICKERSON RAND B
IPC: H04N7/16
Filed: 1991-01-03
Abstract: A system for collecting data from a plurality of respondents having a central portion with a central processor and a base station and a remote portion with a plurality of wireless response units for respondents to be prompted to enter response data to a visually perceptible display which may be shown live, on a television monitor or may be taped. The display may include multiple choice questions. The central processor accumulates the response data via radio, optical or acoustic communication links with the remote units, each of which has a unique address. The central processor displays the accumulated response data in real time and may overlay the processed response data and originate display shown to the respondents.
Patent CA-2035196-A1 (CA)
Inventor: SCHWARZ DEAN F
IPC: B65D33/25
Filed: 1991-01-29
Abstract: RECLOSEABLE PACKAGE WITH PRODUCT BACKING BOARD     ABSTRACT OF THE DISCLOSURE       A recloseable package wherein the enclosed product is supported on a rigid backing board and the package includes a recloseable seal strip mounted on an access edge of the backing board. One sheet of packaging film overlies the backing board and the packaged product. The film sheet is sealed hermetically around the periphery of the backing board and further sealed to the recloseable seal strip exterior of the hermetic seal.
Patent CA-2036592-A1 (CA)
Title: Therapeutic agent for diabetic gangrene
Inventor: SHIKANO MASAHIKO
IPC: A61K38/43
Filed: 1991-02-19
Abstract: An agent for the therapy of diabetic gangrene is described containing blood coagulation factor XIII as the active ingredient.
Patent CA-2037447-A1 (CA)
Title: Portable boot drying apparatus
Inventor: CHU ROBERT J
IPC: F26B21/00
Filed: 1991-03-01
Abstract: ABSTRACT           An accessory apparatus is provided for adaptation to receive a flow of heated air from the tubular discharge end of a commercial hair dryer, and to provide therefrom two like divided flows deliverable via flexible tubing to the inner volume of each boot of a given pair of ski boots or other foot wear.
Patent CA-2037790-A1 (CA)
Inventor: CANTER STANLEY
IPC: G01R15/18
Filed: 1991-03-08
Abstract: A non-intrusive DC current monitor is presented which emulates the theoretical operation of an AC transformer.  A conductor (10), carrying the current to be measured, acts as the primary of a DC current transformer.   This current is passed through the center of a secondary coil (12), and core positioned thereabout, and produces a magnetic flux which induces a current  in the secondary proportional  to the current flowing in the primary.  Means (20, 22) are provided to periodically "reset" the transformer core such that the measurement inaccuracies associated with core saturation are obviated.   A reset current is caused to periodically flow through the secondary coil which produces a magnetic flux oppositely polarized to the flux created by the current in the primary, thus allowing ongoing measurements (14) to be made.
Patent CA-2042415-A1 (CA)
Title: Device for the correction of images from a sensor causing a periodic noise, and implementation method
Inventor: NOREVE XAVIER
IPC: H04N5/365
Filed: 1991-05-13
Abstract: ABSTRACT OF THE DISCLOSURE The  analysis  of  an   image of  the  field   of observation from  a heat  camera by  bands of  n  lines prompts the  appearance  of streaks  or  "striping"  in certain  zones   of   the  image,   all   these   zones constituting a  "striping space".  The device  for the implementation  of   the  method   includes  means   to determine a  base of  orthonormal  functions H  and  V, generating a vector  space of functions  for which  the values taken, at each point of the image, represent the luminance values of all the types of striping, means to modelize  the  striping  exhibited by  the  image   in determining the  coefficients of  distribution of  this striping on the  basic functions,  means to  synthesize the striping, in  determining the  luminance values  of the striping from the  coefficients of correlation and from the values  of the basic  functions and,  finally, means  to  subtract   the  luminance   values  of   the synthesized striping from the  luminance values of  the initial image. Figure 5
Patent CA-2044040-A1 (CA)
Inventor: DUFOUR PASCAL
IPC: B01D39/00
Filed: 1991-06-06
Abstract: RESUME: PROCEDE POUR L'OBTENTION D'AGENTS FILTRANTS DIATOMITIQUES CALCINES TRES PERMEABLES EXEMPTS DE CRISTOBALITE, ET AGENTS FILTRANTS DIATOMITIQUES CALCINES TRES PERMEABLES EXEMPTS DE CRISTOBALITE. La calcination de la diatomite est effectuée au sein d'une veine gazeuse spiralante à haute température, dans laquelle une anneau de billes réfractaires reste en sustentation, anneau au sein duquel s'opère la calcination et l'agglomération contrôlée des particules diatomitiques. La structure amorphe de la silice est conservée: on obtient ainsi des agents de filtration très perméables pratiquement exempts de cristobalite.
Patent CA-2048846-A1 (CA)
Title: Ring-substituted 2-amino-1,2,3,4-tetrahydronaphthalenes, 3-aminochromanes, and aminothiochromanes
Inventor: HOECHSTETTER CRAIG S
IPC: A61K31/015
Filed: 1991-08-09
Abstract: Abstract The present invention provides novel ring-substituted 2-amino-1,2,3,4-tetrahydronaphthalenes, 3-aminochromanes, and 3-aminothiochromanes, including their corresonding sulfoxides and sulfones, which ring-substituted compounds exhibit agonist activity at the serotonin lA receptor.
Patent CA-2049310-A1 (CA)
Title: External security module for a television signal decoder
Inventor: GAMMIE KEITH B
IPC: H04N7/167
Filed: 1991-01-30
Abstract: A decoder for descrambling encoded satellite transmissions comprises an internal security element (1019) and a replaceable security module (1014). The program signal (SYS) is scrambled with a key (KOMI) and then the key itself is twice-encrypted and multiplexed with the scrambled program signal. The key (KOMl) is first encrypted with a first secrete serial number (SSN1) which is assigned to a given replaceable security module (1014). The key is then encrypted with a second secret serial number (SSN0) which is assigned to a given internal security element (1019). The internal security element (1019) performs a first key decryption using the second secret serial number (SSN0) stored within the internal security element (1019). The partially decrypted key (E SSN1(KOM1)) is then further decrypted by the replaceable security module (1014) using the first secret serial number (SSN1) stored within the replaceable security module (1014). The decoder then descrambles the program using the twice-decrypted key (KOM1). The replaceable security module (1014) can be replaced, allowing the security system to be upgraded or changed following a system breach.
Patent CA-2051806-A1 (CA)
Title: Safety syringe cap minimizing needle-stick probability
Inventor: KURACINA THOMAS C
IPC: A61M5/32
Filed: 1991-02-13
Abstract: This invention is a lockable and retractable safety cap for covering the needle of a hypodermic syringe to prevent accidental needle-stick. There is a unitary cap assembly (30) of a resiliently flexible plastic material including a hub portion (32) disposed concentrically about a base portion of the needle and attached to the barrel, a sliding safety hub portion (36) having a bore (38) therethrough slidably disposed with the needle passing through the bore and extending over a point end of the needle, and a plurality of slats (40) extending between the hub portion and the sliding safety hub portion. The slats are parallel to the needle whereby a longitudinal compressive force against the sliding safety hub portion is resisted by a longitudinal compressive resistance of the slats which must be overcome before the slats will deform and flex outward from the needle to expose the needle for use. A  releasable safety latch assembly (52) can be disposed over the slats for preventing deforming and outward flexing thereof. The preferred assembly comprises a coil spring (60) disposed over the slats, a sliding collar (58) carried by an outer end of the coil spring, a retaining button (56) located on one of the slats adjacent the inner end for holding the sliding collar to retain the coil spring in a compressed state, and a release for releasing a hold on the sliding collar when the slats bend outward whereby following use of the syringe the coil spring is released and returns to an extended state.
Patent CA-2052004-A1 (CA)
Inventor: ATKINSON DAVID I H
IPC: G01N33/28
Filed: 1991-09-23
Abstract: ABSTRACT                APPARATUS AND METHOD FOR MEASURING FLUID PROPERTIES   A meter for measuring a material property of a fluid comprises a pair of parallel passage (6, 8) arranged in a line (2). The passages (6, 8) are alternately isolated by valves (12) thereby trapping a portion of the fluid. Measurements made at a measuring station (10) either during closure of the valves (12) and/or during gravitational separation of the multi-phase fluid enable a calibration of the meter to be made.
Patent CA-2053780-A1 (CA)
IPC: C09K8/524
Filed: 1991-10-21
Abstract: Oil Well Treatment Composition Abstract of the Disclosure Solvent compositions for dissolution of both asphaltene and paraffin petroleum based deposits are described.  Solvent compositions comprising kerosene and alkyl phenols, preferably cresol, have been found most efficient in oil well cleaning applications.  This efficiency can be enhanced by the addition of an alkylamine.  Compositions containing other aliphatic hydrocarbon solvents and more than 3% by volume alkyl phenols also exhibit good solvent properties for petroleum deposits.  Oil production can be enhanced following well treatment in accordance with the disclosed invention.
Patent CA-2054186-A1 (CA)
Title: Wheeled vehicle control system
Inventor: WRIGHT PETER G
IPC: B60T8/34
Filed: 1990-05-08
Abstract: The invention provides a wheeled vehicle control system comprising means for sensing whether slip is occurring at any wheel of the vehicle such as a sensor (3) sensing the rotational speed of a wheel and an optical sensor (4) sensing speed of the vehicle, and means for determining the difference between the actual speed of rotation of the wheel and the speed of rotation corresponding to the actual speed of the vehicle over the ground and means to convert any sensed slip into control signals for controlling the braking or acceleration of the vehicle thereby to modulate the slip.  The control system generally includes a member (1) operably by the driver to activate braking or acceleration of the vehicle and means (10) responsive to the control signals to apply a force to the member (1) in the opposite direction to that applied by the driver thereby to modulate the slip.
Patent CA-2054820-A1 (CA)
Title: Analog-to-digital converter circuit with offset correction
Inventor: MUTO HIROYASU
IPC: H03M1/10
Filed: 1991-11-01
Abstract: An offset for an A/D converter circuit is determined as a difference between the average output of the circuit and the sum of an average input analogsignal entering the circuit and an average input bias voltage entering the circuit. Once determined, the offset may be subtracted from each of the data values that is output by the circuit. The offset may instead be used to adjust the bias voltage of input signals to the circuit.
Patent CA-2055040-A1 (CA)
Title: Pulping
Inventor: HECKRODT WILLIAM
IPC: D21C3/20
Filed: 1991-11-06
Abstract: 28,919 ABSTRACT OF THE DISCLOSURE      A family of catalysts is provided for use in the digest-ing liquor of pulping processes, which digesting liquors operate in generally acid media.  The catalysts are especially useful for increasing the strength of sheets made from the pulp, as evidenced by increased tear strengths and, in some embodiments,  increased burst strengths.   The use of the catalyst in the digesting provides novel pulping compositions and novel pulping processes, which produce novel pulps, novel sheets made with the pulps, and novel lignins recovered from the digesting liquor.   The illustrated catalysts generally comprise electron donor moieties and hydrophobic moieties.
Patent CA-2057352-A1 (CA)
Title: Guide sleeve, guide post and improved ball bearing assembly
Inventor: HANAWAY RONALD L
IPC: F16C29/04
Filed: 1991-12-10
Abstract: 61,121 ABSTRACT         In combination, a guide post having a longitudinal slot and a ball bearing cage having a bore adjustably receiving the post and adapted for relative longitudinal and rotary movements,  there being an internal annular open top recess in said cage inwardly of one end terminating in an annular  flange  defining  a  stop  shoulder.   An  apertured  swivel  cap  is mounted upon the guide post and includes a shank extending into the cage recess.   An  annular  detent  on  the  shank  is  interlocked with  the  stop shoulder.  A guide pin is threaded through the cap and into the guide post slot  and  is  loosely and  slidably  registerable with side walls  of  the slot.   The  pin  traps  the  cap  upon  the  guide  post  for  longitudinal movements.  The cooperating stop shoulder and detent retains the cage upon the cap but for free relative rotary movements.
Patent CA-2058089-A1 (CA)
Title: Use of substituted 1,2,4-oxadiazole derivatives for combating endoparasites, new substituted 1,2,4-oxadiazole derivatives, and processes for their preparation
Inventor: JESCHKE PETER
IPC: A61P33/00
Filed: 1991-12-19
Abstract: The present invention relates to new substituted 1,2,4-oxadiazole derivatives of the formula (I) and to their stereoisomers   in which formula R1 represents hydrogen, C1-8-alkyl which is optionally substituted by halogen, cycloalkyl, alkoxy, hydroxyl, aryl, alkylcarbonyl, alkoxycarbonyl and cycloalkyl, R2 represents hydrogen, halogen, NO2, CN, alkyl, halo-genoalkyl, alkoxy or thioalkyl, R3 represents hydrogen, halogen, NO2, CN, alkyl, halo-genoalkyl, alkoxy or thioalkyl, R4 represents OH, SH, halogenoalkoxy, halogenoalkyl-thio, halogenoalkylsulphinyl, halogenoalkyl-sulphonyl, aryloxy, aralkoxy, arylthio, aralkylthio, alkylenedioxy, halogenoalkylenedioxy, amino, alkyl-amino, dialkylamino, acylamino, carbamoyl, alkylsulphinyl, alkylsulphonyl, arylsulphinyl, arylsulphonyl, sulphonylamino, alkoxycarbonyl, alkylcarbonyl, alkylcarbonyloxy, alkoxyalkyl, alkoxyalkoxy or hydroxyalkoxy, where, in the event that at least one of the radicals R2 or R3 is other than hydrogen, R4 additionally represents halogen, alkyl, halogenoalkyl, alkoxy or thioalkyl, where, in the event that R1 represents optionally substituted C1-8-alkyl, R4 additionally represents alkoxy, processes for their preparation, and their use as endo-parasiticides.
Patent CA-2060230-A1 (CA)
Title: System, method, and process for computer-controlled manufacture of three-dimensional objects from computer data
Inventor: PENN STEVEN M
IPC: B29C67/00
Filed: 1992-01-29
Abstract: A method and process for computer-controlled manufacture of three-dimensional objects involves dispensing a layer of liquid, insoluble material (25) onto a platform (15) at predetermined locations, which them hardens. A second media (35), preferably water soluble, is then sprayed onto this layer to thereby encapsulate the hardened insoluble media. The uppermost surface of this encapsulant is planed, thus removing a portion of the encapsulant to expose the underlying insoluble material for new pattern deposition. After the resulting planing residue is removed, another layer of liquid, insoluble media is dispensed onto the planed surface. The insoluble media can be of any color and may vary from layer to layer, and from location within a layer to location within a layer.  These steps are repeated. until the desired three-dimensional object (55), surrounded by a mold, is completed. At this point, the abject is either heated or immersed in a solvent, thereby dissolving the mold and leaving the three-dimensional object intact.
Patent CA-2060744-A1 (CA)
Title: Thin absorbent article having rapid uptake of liquid
Inventor: HANSON WILLIAM D
IPC: A61F13/53
Filed: 1992-02-05
Abstract: Generally stated, the present invention provides a distinctive absorbent article comprising a backsheet layer, and a topsheet layer which is disposed in facing relation with the backsheet layer. An absorbent body is interposed between the backsheet layer and topsheet layer. The absorbent body includes a retention portion which comprises a matrix of substantially hydrophilic fibers having a distribution of high-absorbency particulate material therein. The hydrophilic fibers and high-absorbency particles can be provided in a fiber-to-particle weight ratio within the range of about 70:30 to about 30:70. A surge management layer, comprising bicomponent fibers having a denier of not more than about 3d, is located adjacent at least one major, facing surface of the topsheet layer, and can cooperate with the article components to provide for a liquid Penetration Rate index of not less than about 2.67 ml/sec.
Patent CA-2061834-A1 (CA)
Title: Printing apparatus and method
Inventor: ALLEN JANET A
IPC: H04N1/415
Filed: 1992-02-25
Abstract: Abstract of the Disclosure Printing apparatus and method particularly suited to provide a hardcopy of an image produced by medical imaging equipment or the like. The apparatus utilizes a fast serial processing method in which portions of coarse image data are rapidly processed and printed in real time to reduce overall memory requirements and device complexity while minimizing printing speed.
Patent CA-2063205-A1 (CA)
Inventor: KASHIWAGI KOICHIRO
IPC: H04M9/00
Filed: 1992-03-19
Abstract: A plurality of trunk interface blocks are provided to receive a plurality of telephone lines. In each trunk interface block, a ringing signal detection circuit detects an incoming ringing signal on the corresponding telephone line, and a code insertion circuit insets in a PCM signal, coded data indicative of whether or not an individual ringing signal exists on the telephone line in response to the output of the ringing signal detection circuit. The PCM signal is transferred through a PCM time division switch and an extension interface circuit to a destination extension set.          In the destination extension set, the code discrimination circuit extracts coded data from the PCM signal and controls the on-off circuit to drive the speaker in synchronization with the individual ringing signals.
Patent CA-2065156-A1 (CA)
Title: Intragingival delivery systems for treatment of periodontal disease
Inventor: DUNN RICHARD L
IPC: A61K6/00
Filed: 1990-07-03
Abstract: A polymeric controlled delivery system is provided for use in treating periodontal disease. The delivery system in a variety of forms is placed directly in the infected gingival tissue where the chemotherapeutic agent is slowly released into the tissue and into the infected periodontal pocket by means of the gingival crevicular fluid originating in the gingival tissue.
Patent CA-2066752-A1 (CA)
Title: Sanitation system
Inventor: HUMPHREY FRANK
IPC: C02F3/12
Filed: 1991-04-11
Abstract: A sanitation system for treating a black water stream and a grey water stream. The black water stream is inputted into a black water digester wherein the black water stream is aerobically digested to produce a treated black water stream and the treated black water stream is discharged from the black water digester. The treated black water stream is inputted into a black and grey water digester and the grey water stream also is inputted into the black and grey water digester and the grey water stream also is inputted into the black and grey water digester. The treated black water stream and the grey water stream are aerobically digested in the black and grey water digester to produce a treated bleak and grey water stream and the treated black and grey water stream is outputted from the black and grey water digester.