baber/WOPTO huggingface dataset:
Patent CA-2107685-A1 (CA)
Title: Process for producing hydrophobicized double-layer hydroxide compounds
Inventor: BREUER WOLFGANG
IPC: C01F7/785
Filed: 1992-03-26
Abstract: ABSTRACT OF THE DISCLOSURE Hydrophobicized double-layer hydroxide compounds may be produced if double-layer hydroxide compounds of the general formula (I): [M(II)1-xM(III)x(OH)2]Ax ? H2O, in which M(II) is a divalent metal cation, M(III) is a trivalent metal cation, A is an equivalent of a monobasic and/or multibasic inorganic acid, x is a number from 0.2 to 0.5 and n is a number from 0 to 10, are reacted at elevated temperature and under autogenous pressure with at least one carboxylic acid or its salt and the reaction product is then dried. The hydrophobicized double-layer hydroxide compounds obtained by this process are suitable as catalysts for the alkoxylation of compounds with active hydrogen atoms or of fatty acid esters.
Patent CA-2109685-A1 (CA)
Title: Vaiable keel for sailing vessels (with the possibility to increase or decrease alternatively)
Inventor: NICKOLAS BROUMAS
IPC: B63B41/00
Filed: 1993-11-22
Abstract: The variable keel for vessels, consists of a blade and a shaft. The deeper the blade is lowered into the water, the bigger the surface of the keel (projecting bar keel) becomes. It provides an effective solution for the problem of balance and sailing stability for a ship. It abolishes and replaces the up-to-now methods used for balance and stability sailing vessels, which are complicated and expensive, i.e.rigid keels, attached permanently to the vessel, rolling weights and stability docks. This invention may be installed on all existing ships. With this new invention we may build ships of any form, especially the cylindrical forms, with all the well known advantages. With the variable keel, we save time, money, materials and especially the small ones - are able to obtain superior balance.
Patent CA-2109891-A1 (CA)
Inventor: CARON LAVERNE A
IPC: B60T8/32
Filed: 1993-11-24
Abstract: Vehicle engine torque, acceleration, deceleration and brake treadle pressure are determined (30, 32, 38). Vehicle load is calculated (34) from the engine torque and acceleration; and braking system effectiveness is calculated (42) by comparing the determined deceleration with a deceleration predicted for the calculated vehicle load and the determined brake treadle pressure. Values representative of braking system effectiveness are accumulated and evaluated to more accurately determine when braking system service is required than is possible by merely scheduling service according to the amount of elapsed time or the number of miles driven since prior service was performed.
Patent CA-2111775-A1 (CA)
Title: Pharmaceutical and/or cosmetic preparation
Inventor: GHYCZY MIKLOS
IPC: A61K8/00
Filed: 1993-12-17
Abstract: ABSTRACT     A pharmaceutical and/or cosmetic agent is described, which comprises as active ingredient a mixture of N-acylalkanolamines and N-acylethanolamines besides the usual excipients.
Patent CA-2112290-A1 (CA)
Title: A clock recovery circuit for serial digital video
Inventor: FRANCIS JOHN
IPC: H04N7/167
Filed: 1993-12-23
Abstract: A control circuit for use with a phase locked loop in a digital video receiver. The digital receiver accepts a serial digital input signal which can comprise composite or component video signals. The phase locked loop comprises a phase detector, a loop filter, and a voltage controlled oscillator (VCO) and includes a divide-by-two modulus divider coupled to the output of the VCO. The VCO has an oscillation frequency control port and the divider has a frequency select port. The control circuit includes an automatic fine tuning and frequency sweeping stage which is coupled to the output of the loop filter and the oscillation frequency control port. The tuning and frequency stage provides temperature drift correction for the VCO. In addition, the tuning and frequency stage "sweeps" the oscillation frequency of the VCO to aid in "locking" the phase locked loop to the phase or frequency of the input signal. Once locked, timing signals and digital data can be extracted from the input signal. The control circuit also includes a video signal detector stage for detecting whether the input signal comprises a composite video signal or a component video signal. The video signal detector stage produces an output signal which controls the modulus of the divider in the phase locked loop.
Patent CA-2113041-A1 (CA)
Title: Plurality of concrete sections having a quadrilateral-shaped water-sealing article disposed therebetween
Inventor: KANGAS WILLIAM W
IPC: E02D29/16
Filed: 1994-01-07
Abstract: A shaped, water-expandable water-sealing article (12) used for sealing an area between a first section (32) of at least partially cured concrete and a second, adjacent section (34) of substantially uncured concrete to form a plurality of water-sealed concrete sections. The clay water sealing article (12) is in the shape of quadrilateral, preferably a trapezoid, and is disposed to bridge an area between the two sections of concrete. Upon hydration of the clay contained within the shaped water sealing article, expansion of the clay creates expansion forces extending from a corner of the article that is surrounded by the uncured concrete, wherein the corner has an included angle greater than 90 DEG , preferably at least 100 DEG . The expansion force developed by the expansion of the shaped water sealing article are absorbed by a substantially increased area of the uncured concrete as compared to expansion forces resulting from a clay-based water seal having a 90 DEG included angle at the corner (s) surrounded by the uncured concrete. <IMAGE>
Patent CA-2113611-A1 (CA)
Title: Tree trunk protector band and lock
Inventor: MACMASTER ROSS L
IPC: A01G13/02
Filed: 1994-01-17
Abstract: The invention relates to an improved tree guard for protecting the bark of young trees and shrubs from mechanical  damage  caused  by  landscaping  and  lawn maintenance equipment.  The tree guard includes at least one generally rectangular,  flexible sheet which may be temporarily or permanently bent into a cylindrical shape sufficiently large to encircle a tree at ground level.          Longitudinal releasable locking strips are provided to attach the ends of the sheet together to hold the sheet in the desired shape. The locking strips incorporate a tab and groove attachment system with each tab and groove having retaining beads running therealong to hold each tab within a cooperating groove.  Preferably, the tab and groove of each locking strip are oriented perpendicularly to the plane of the sheet at the point of attachment of the strip to the sheet.  The cooperating strips may be identical in shape so that the tab of one fits into the groove of another and vice versa.  A process of constructing a tree guard according to the invention is also provided in which the sheet material and the locking strip material are extruded, cut to length and then spot welded together in the appropriate orientation.
Patent CA-2113794-A1 (CA)
Inventor: TEI DAIKOU
IPC: G02B5/20
Filed: 1994-01-19
Abstract: A multiple layer film 3 is composed on a substrate 2 by evaporation. The multiple layer film 3 is composed of a lower multiple layer film 31, a cavity layer 32, and an upper multiple layer film 33. The upper and lower layer films 31, 33 are composed by alternately laminating high refractive film layers 31H, 33H, and low refractive film layers 31L, 33L, respectively. In the x-axis direction of the substrate 2, the wavelength .lambda., that is, the film thickness is changed continuously so that all wavelengths may be .lambda./4n (n being the refractive index) with the film thickness corresponding to the transmission wavelength A. Thus, the selective wavelength is changed continuously depending on the incident position of the light.
Patent CA-2114131-A1 (CA)
Title: Oil-sorbing boom
Inventor: FISCHER EDWARD M
IPC: E02B15/04
Filed: 1992-07-20
Abstract: A combined skirted oil-sorbing boom (10) and oil-sorbing sweep has a buoyant inner core (12) and an oil-sorbent outer core (20) of a spirally wound sheet (15) of polymeric, oleophilic, hydrophobic microfibers. Adhesively bonded to a sheet (15) of the microfibers at the outer face of the outer core (20) is an open-mesh netting (18) of polymeric monofilaments that are fused at their crossings. The netting (18) and the sheet (19) to which it is adhered extend from the outer core (20) to form a depending skirt (22) which acts as a barrier to oil that is being sorbed by the microfibres. The buoyant inner core (12) can be an open-cell foam that sorbs oil slowly, thus supplementing the oil-sorbing capability without significant loss of freeboard.
Patent CA-2116761-A1 (CA)
Title: Ion generation structure in environmental systems
Inventor: LEWIS KEITH B
IPC: D06F58/00
Filed: 1994-03-01
Abstract: Ionization systems in and for laundry dryers and other contexts, whereby to neutralize static electricity build-up and acidic conditions,  and thereby create environmentally friendly systems for drying clothes and other fabrics, generally prolonging fabric life,  reducing particle and lint entrainment, and also reducing, if not eliminating, acidic conditions in dryers and other environs.
Patent CA-2117253-A1 (CA)
Title: Image Forming Device and Method
Inventor: YAMAGUCHI EIJI
IPC: G09G3/22
Filed: 1994-03-31
Abstract: A color display device has an evacuated vessel accommodating at least an electron-beam generating source in which a plurality of surface-conduction electron emitting devices are arrayed on a substrate, and phosphors for the three primary colors red, green and blue for emitting light in response to being irradiated with electron beams from the electron-beam generating source. A modulator is provided to modulate the electron beams, which irradiate the phosphors, based upon an image signal, the modulator having  gamma -corrector for subjecting the image signal to a gamma correction. The modulator modulates the electron beams based upon the image signal corrected in advance by the  gamma -corrector. <IMAGE>
Patent CA-2117425-A1 (CA)
Title: Ergonomic Handle Construction for Hand-Held Tools
Inventor: DOLAK DAVID E
IPC: B25B7/00
Filed: 1993-07-28
Abstract: A hand-held tool such as a plier, cutter or the like, having a tool body ( 10) including pivotally connected basic handles (12~ 14) having a preselected arcuately shaped portion (27, 30), plastic extension members (32, 34) adapted to partially fit over the tool body basic handles (12, 14) and to define therewith an elongated handle subassembly (12a, 14a) having a desired streamlined shape, and plastic, flexible sheaths (44) located over the elongated handle subassemblies (12a, 14a) to define a final handle assembly (12b, 14b) having a desired elongated, streamlined contour with a soft elastically deformable sheath or covering whereby a light-weight hand-held tool is provided having ergonomically constructed handle assemblies.
Patent CA-2120144-A1 (CA)
Inventor: RICHTER WOLFGANG-DIETER
IPC: F16F9/02
Filed: 1993-07-30
Abstract: PCT No. PCT/DE93/00671 Sec. 371 Date Mar. 30, 1994 Sec. 102(e) Date Mar. 30, 1994 PCT Filed Jul. 30, 1993 PCT Pub. No. WO94/03340 PCT Pub. Date Feb. 17, 1994The body of a rail vehicle is lowered when it is stationary to facilitate ingress and egress. The body is raised in preparation for motion to provide satisfactory road clearance. In one embodiment of the invention, a lifting cylinder, in series with a supplementary spring, is extended during travel, and is contracted when the rail vehicle is stopped. In other embodiments, a hydraulic cylinder, either alongside, or coaxial with the supplementary spring, compresses the supplementary spring when the rail vehicle is stopped. In a further embodiment, the hydraulic cylinder is replaced with an electromechanical adjusting element such as a screw drive. A control system, preferably actuated by unlocking and locking of the door opening lock, actuates the lowering and raising of the body.
Patent CA-2120597-A1 (CA)
Title: Process for making carbon electrode
Inventor: STIPANOVICH JOHN JR
IPC: C10C3/06
Filed: 1993-07-30
Abstract: Carbon electrode impregnating pitch is made from coal tar by centrifugation of the coal tar to remove particulates, followed by milling and distilling the remaining material.
Patent CA-2121137-A1 (CA)
Title: Use of thiol redox proteins for reducing disulfide bonds
Inventor: BUCHANAN BOB B
IPC: A23L11/30
Filed: 1992-10-08
Abstract: Methods of reducing cystine containing animal and plant proteins, and improving dough and baked goods' characteristics is provided which includes the steps of mixing dough with a thiol redox protein. The method of the present invention preferably uses reduced thioredoxin with wheat flour. Methods for reducing snake, bee and scorpion toxin proteins with a thiol redox (SH) agent and thereby inactivating the protein are also provided. Protease inhibitors are also reduced by the NADP/thioredoxin system. When two of these inhibitors, the Kunitz and Bowman-Birk trypsin inhibitors of soybean are reduced, they lose their ability to inhibit trypsin.  Moreover, the reduced form of the inhibitors showed increased susceptibility to heat and proteolysis by either subtilisin or a protease preparation from germinating wheat seeds. A novel cystine containing protein that inhibits pullulanase was isolated. When it was reduced by thioredoxin its inhibitory activity was reduced.
Patent CA-2122265-A1 (CA)
Title: Chlorination and elimination process and some products thereof
Inventor: CLEMENT KATHERINE S
IPC: C07C255/34
Filed: 1992-10-20
Abstract: Active methine compounds are chlorinated by contacting such compounds with a perchloroalkane and aqueous base in the presence of a phase transfer catalyst which is a tetraalkylonium hydroxide.  Chlorinated products, preferably tertiary alkyl chloro compounds, are produced. The tertiary alkyl chloro compounds are useful in elimination reactions, preferably reactions with base, to form unsaturated compounds, particularly compounds having a vinylidene or exomethylene group.
Patent CA-2122895-A1 (CA)
Title: Method and associated apparatus for installing an above ice surface curling hack
Inventor: COMO RAYMOND
IPC: A63B67/00
Filed: 1994-05-04
Abstract: A method of installing an above ice surface curling hack is described. Firstly, embed a base member into a sheet of ice. The base member must be totally covered by ice thereby leaving an ice surface that is devoid of any hack depressions.      The base member has at least two vertically oriented female receptacles. Secondly, drill the ice out of the female receptacles. Thirdly, mate the female receptacles of the base member with depending male members of a detachable foot pad.
Patent CA-2124092-A1 (CA)
Title: "carnotto" & "s-a-v-e"
Inventor: SHORT FREDERICK J H
IPC: F02B1/04
Filed: 1994-05-05
Abstract: This  invention relates to a heat engine which I claim  functions more   efficiently  thermally  than  conventional  heat   engines operating  currently,especially  the 4 stroke "OTTO"  cycle  heat engines   that  operate  well  below  CARNOT's   max   efficiency level.It  is necessary to highlight certain events of  a  typical 4  stroke "OTTO" cycle heat engine,  in order to indicate how  my invention improves overall efficiency.          As  an example using an engine having a  compression  ratio which multiplys  it's original charge to 200psi,  at which moment  if at  an optimum temperature of 500°Kelvin,  containing an  optimum volume   of  gaseous  fuel,   activated  to  erupt  and  form   a combustion  reaction  with an increase of  mole  products,  along with  the resulting thermal energy,  will increase  the  pressure by  a factor that is determined from  the increased rise of  sink temperature  e.g:- if from 310°K  to a compressed state at 500°K, now  further increased by combustion to an  estimated   (scource) Temperature of 1200°K then our original pressure increased by the (1200/310)factor of (3.87) along with reactionary pressure should produce aprox' 800 pounds per square inch, acting upon a  10 sq" piston  crown  will  apply  8000  pounds  force,  which  in  turn applied  through  the connecting rod and  crankshaft's  angle  of obliquity, should generate torque accordingly.          Such torque is minimal initially and maximises at an angle within the  first  90 degrees of rotation at a point determined  by  the ratio lenghts of the connecting rod and the crank radius, however before  reaching this position,  heat energy is lost through  the cylinder surrounds, and pressure reduces as the volume increases, In  fact  only around 150°of ERRATIC  power is  generated  during it's  720°  "OTTO" cycle,   complicated  by  the  exhaust  valve commencing  to open around 4800 against high  internal  pressure, thereby allowing a tremendous amount of potential heat energy  to escape without doing any useful work.          Such  characteristics along with the fact these "OTTO"cycle  heat engines  are the subject of much concern in the way they  pollute our environment, led  me to rearrange  conventional  heat  engine components much more advantageously to warrant that greator  than 60%  "CARNOT"  Max  thermal efficiency is  attainable,now  to  be described in the following specification:-
Patent CA-2125948-A1 (CA)
Inventor: GILLYNS EMILE MICHEL
IPC: D04H3/04
Filed: 1992-12-14
Abstract: A nonwoven polyolefin sheet useful as a primary carpet backing in making a moldable, tufted automotive carpet. The polyolefin sheet, preferably polypropylene, is prepared by melt spinning filaments from a plurality of spinnerets and then drawing the spun filaments to a draw ratio of less than 2.0 to maintain high filament elongation as the filaments move from high to low elongation as the draw increases. The drawn filaments are deposited in both the machine and cross-machine directions on a moving collection belt to form a nonwoven sheet having a unit weight of 100 to 150 g/m2. The resulting sheet is lightly bonded using a steam bonder and then debonded such that sheet thickness increases by between 2.5 and 3.5 times. The tufted sheet has an elongation of at least 40 %. The invention sacrifices high sheet strength for tufted sheet elongation in both the machine and cross-machine directions in order to make a moldable, tufted automotive carpet that resists tearing, creasing and grinning while still retaining its shape after demolding.
Patent CA-2127588-A1 (CA)
Title: Rotary throat cutoff device and method for reducing centrifugal fan noise
Inventor: EISINGER FRANTISEK L
IPC: F04D17/08
Filed: 1994-07-07
Abstract: ROTARY THROAT CUTOFF DEVICE AND METHOD   FOR REDUCING CENTRIFUGAL FAN NOISE            ABSTRACT OF DISCLOSURE     A rotary cutoff device for reducing noise generated by the impeller blading of rotating centrifugal fans.  The rotary device includes a casing partially enclosing a rotor mounted near the centrifugal fan discharge opening.  The rotor containing a plurality of resonator cavities consisting either of quarter wave  length resonators or of Helmholtz type  resonators,  each cavity being oriented preferably transverse to the  rotor axis and having a length/diameter ratio in the range of 8/1-16/1.  The rotor can be rotatably adjustable relative to the fan impeller, or it can be driven by a motor at a surface speed 30-100% that of the fan impeller surface speed, so that the rotor resonator cavities act as either quarter wave length or Helmholtz resonators to absorb effectively the acoustic pulsations generated by the centrifugal fan blade pass frequency of the fan and its harmonics, and reduce substantially the noise generated by centrifugal fans.
Patent CA-2129240-A1 (CA)
Inventor: TOTH JOHN B
IPC: B65D83/14
Filed: 1993-01-29
Abstract: Disclosed is an aerosol extension for use with a pressurized container (10) in domestic, industrial and general spray applications. The pressurized container (10) includes a cylindrically-shaped body (12), a planar bottom (16) and a convex top (14). The body (12) includes a propellant and a product to be dispensed therefrom. The top (14) has a circular opening (18) for receiving an actuator (24) and a dispensing valve (22). The actuator (24) and dispensing valves (22) define a dispensing system (20) for delivering the product as a spray, a mist, a stream or a powder. The actuator (24), in turn, defines an outlet orifice (32) for delivering the product held within the pressurized container (10). The improvement comprises a clamping means, which is joined and releasably locked to the dispensing system (20). A flexible, elongated, tubular member (23) is provided for accurately delivering products contained in the pressurized container (10) from the dispensing system (20) to intended locations otherwise difficult to reach with said products. The tubular member (23) is adjustably coupled between the clamping means and the dispensing system (20) to effect efficient delivery of the products.
Patent CA-2130531-A1 (CA)
Inventor: BERSON WILLIAM
IPC: G07D7/20
Filed: 1994-08-19
Abstract: Method and apparatus for verification of documents belonging to selected groups of classes of such documents.      The documents are verified to assure that information captained in the documents is authenticated and unchanged. In one embodiment of the subject invention the documents maybe identification cards including both text and an image of the bearer. Each document also includes encrypted information E i [M] derived from the document, and encrypted decryption key CE j [Di] for decrypting the encrypted information and information identifying the document as a member of the jth class C j of a group of classes of documents. Verifying apparatus validates the document by a scanning information from the document decrypting the encrypted decryption key an using the decryption key so obtained to decrypted the encrypted information and comparing the recovered encrypted information with information derived from the document directly. The verifying apparatus is responsive to enabling information from a data center to enable the verifying apparatus to decrypt the encrypted decryption key for any document in a selected group of classes.
Patent CA-2132644-A1 (CA)
Title: Side-channel communications in simultaneous voice and data transmission
Inventor: BREMER GORDON
IPC: H04M11/06
Filed: 1994-09-22
Abstract: Side-Channel Communications in Simultaneous Voice and Data TransmissionAbstract In a simultaneous voice and data communication system, a stream of signal points is partitioned into a plurality of symbol blocks, each symbol block including a data segment and a control segment. The data segment carries information from a user, i.e., user data, while the control segment provides control information. A voice signal is then added to at least a portion, or all, of the signal points of each symbol block to provide for simultaneous voice and data transmission to an opposite endpoint. The control information may represent information from a secondary data source, and/or may include information about the characteristics of the succeeding block, e.g., the user data rate, and information pertaining to characteristics of the communications channel.