baber/WOPTO huggingface dataset:
Patent CA-2116157-A1 (CA)
Title: Modulated dither signal
Inventor: MORRISON GARY
IPC: G01R21/133
Filed: 1994-02-22
Abstract: ABSTRACT                MODULATED DITHER SIGNAL         A system for analogue to digital conversion comprising a means (4) for receiving an input analogue signal, a dither means for adding a dither signal and an analogue to digital converter (2) for converting the combined input signal and dither signal to a digital value, characterised in that the dither means provides a dither signal of a form comprising a first periodic dither signal having superimposed and being shaped by a second signal having at least one component which varies the first periodic dither signal over at least one quantisation interval of the analogue to digital converter.                                        Fig. 1
Patent CA-2121242-A1 (CA)
Title: Device for cutting sheets of wood off square timber without forming chips
Inventor: GOENNER SIEGMAR
IPC: B27L5/06
Filed: 1993-04-07
Abstract: (54) Title:  Device for cutting sheets of wood off square timber without forming chips.            (57) Abstract A device for cutting sheets of wood off square timber (2) without forming chips exhibits two measurement devices (3, 4), which determine the taper of the square timber (2) in the transverse direction. A cutter blade (10), which cuts the sheets from the square timber (2), can be pivoted around a swivel axis (15) extending at right angles to the cutter blade (10), in order to produce a relative pivoting motion between the cutter blade (10) and a timber guide surface (8) located at a distance from the blade. The pivoting motion is controlled as a function of the measurements furnished by the measurement devices (3, 4), in order to compensate for the taper of the square timber in the transverse direction.
Patent CA-2123921-A1 (CA)
Title: Polypeptide compound and a process for preparation thereof
Inventor: OHKI HIDENORI
IPC: A61P31/04
Filed: 1994-05-17
Abstract: ABSTRACT           The  invention  relates  to novel  polypeptide compounds having the general formula:                    [ I ]   wherein R1 is a hydrogen atom, R2 is an acyl group, R3 is a  hydroxy  or  acyloxy  group,  R4  is  a  hydroxy  or hydroxysulfonyloxy group,  R5  is  a hydrogen  atom or  a lower alkyl group which is optionally substituted with a hydroxy, acyl, di(lower)alkylamino or cyclic amino group, and R6 is a hydrogen atom,  a hydroxy or acyl  (lower) alkylthio  group,  and pharmaceutically  acceptable  salts thereof.  The polypeptide  compounds  of  formula  [I]  and their pharmaceutically acceptable salts  are useful  for the   prophylactic   and/or   therapeutic   treatment   of infectious diseases caused by pathogenic microorganisms.
Patent CA-2128539-A1 (CA)
Title: Integration of transistors with vertical cavity surface emitting lasers
Inventor: OLBRIGHT GREGORY R
IPC: H01L31/153
Filed: 1993-01-21
Abstract: 2128539 9314520 PCTABScor01 Optoelectronic integrated circuits (110) are disclosed comprising a vertical-cavity surface emitting laser (VCSEL) (118) and a transistor (116). The VCSEL comprises a laser cavity sandwiched between two distributed Bragg reflectors. The laser cavity comprises a pair of spacer layers (142, 144) surrounding one or more active, optically emitting quantum-well layers (3) having a bandgap in the visible range which serves as the active optically emitting material of the device. The thickness of the laser cavity is m.lambda./2neff where m is an integer, .lambda. is the free-space wavelength of the laser radiation and neff is the effective index of refraction of the cavity. Electrical pumping of the laser (118) is achieved by heavily doping the bottom mirror (145) and substrate to one conductivity-type and heavily doping the regions of the upper mirror (141) with the opposite conductivity type to form a diode structure and applying a suitable voltage to the diode structure. Embodiments are disclosed which integrate the VCSEL (118) with bipolar (126, 136) and FET (316) transistors as well as phototransistors (416).
Patent CA-2131036-A1 (CA)
Title: Plunger rod for cartridge-needle unit
Inventor: BERGSTRESSER WILLIAM A
IPC: F16B7/18
Filed: 1994-08-29
Abstract: ABSTRACT      An article of manufacture adapted to be connected to a male thread comprises an exterior surface, a cavity opening away from the exterior surface and defining an interior surface, and a plurality of ribs disposed on the interior surface extending longitudinally away from the exterior surface.  The article can be connected to the male thread by threading the cavity onto the male thread.  It is a particular advantage that the article of this invent on, unlike prior art female threaded articles, can be prepared by conventional simple injection molding techniques not requiring an unscrewing step.  In one preferred embodiment, the article is a plunger rod intended to be connected to the male threaded post of a plunger of an associated cartridge-needle unit to form a syringe assembly.
Patent CA-2133372-A1 (CA)
Title: De-icing composition and anti-icing composition for aircraft
Inventor: STANKOWIAK ACHIM
IPC: C09K3/18
Filed: 1994-09-30
Abstract: A novel non-thickened de-icing composition and anti-icing composition for aircraft is described. It comprises essentially glycols and water as the main components, at least one nonionic surfactant from the group consisting of fatty alcohols and low molecular weight alkoxylates thereof, and preferably another anionic surfactant from the group consisting of alkali metal alkylarylsulfonates, corrosion inhibitors and, if appropriate, pH regulators.      The novel composition has a relatively long holdover time and therefore combines the advantages of non-thickened and thickened aircraft de-icing compositions.
Patent CA-2133566-A1 (CA)
Inventor: EMERSON CHARLES P JR
IPC: C12N15/09
Filed: 1993-03-24
Abstract: ABSTRACT OF THE INVENTION           A transcription control element is provided for controlling gene expression in myogenic cells. The transcription control element comprises an isolated DNA segment having an enhancer activity in cultured cells and in non-cultured myogenic cells. The transcription control element is isolated from upstream regions of genes encoding bHLH myogenic regulatory proteins.  Specifically, an enhancer element from the upstream region of human myoD and an enhancer element from the upstream region of a quail qmf1 are provided.  These myoblast-specific transcription control elements are capable of significantly increasing the levels of gene expression in myogenic cells and are intended to be applied in gene therapy, using myoblast transfer and microinjection techniques, wherein myoblast-specific gene expression is desired or required.
Patent CA-2134169-A1 (CA)
Inventor: COTTEVIEILLE DENIS
IPC: H01F1/42
Filed: 1994-10-24
Abstract: Process for the manufacture of copolymers with magnetic properties, including a first stage of copolymerisation by oxidation in acidic medium of a first monomer chosen from optionally substituted aniline and of a second monomer chosen from substituted aminoaromatic compounds, which comprises:   - an induction stage during which the first monomer is brought into contact with at least one oxidising agent and at least one initiating agent, - and a production stage during which, after the introduction of the second monomer, at least one oxidising agent and at least one initiating agent are gradually added.
Patent CA-2139040-A1 (CA)
Title: Foamer nozzle with looped rib flow disrupters
Inventor: BALDERRAMA MARK A
IPC: B05B1/02
Filed: 1994-12-23
Abstract: A foamer nozzle for use with a trigger operated pump sprayer of the type utilized with a foamable liquid.  The foaming action is optimized by maximizing the amount of mixing of the spray particles in the plume emitted from the discharge orifice of the sprayer with aspirated air.  Such optimization is achieved through use of opposing pairs of individual separate and spaced apart looped ribs lying in a common plane substantially parallel to and downstream from the wall containing the discharge orifice, with each of the ribs having a tip and a pair of spaced legs which define an opening therebetween.  The ribs are preferably teardrop shaped in cross-section, with the rear edges thereof being substantially V-shaped for impingement by the spray plume.          In a further embodiment, an additional set of ribs are disposed in a member which is press-fit within an annular wall downstream from the first set, such that the additional set of ribs is substantially parallel to the first set, but angularly offset by about 45 degrees with respect thereto.
Patent CA-2143208-A1 (CA)
Title: Sulfonamide inhibitors of hiv-aspartyl protease
Inventor: TUNG ROGER D
IPC: C07D409/14
Filed: 1993-09-07
Abstract: The present invention relates to a novel class of sulfonamides which are aspartyl protease inhibitors, of formula (I). In one embodiment, this invention relates to a novel class of HIV aspartyl protease inhibitors characterized by specific structural and physicochemical features. This invention also relates to pharmaceutical compositions comprising these compounds. The com-pounds and pharmaceutical compositions of this invention are particularly well suited for inhibiting HIV-1 and HIV-2 protease activity and consequently, may be advantageously used as antiviral agents against the HIV-1 and HIV-2 viruses. This invention also relates to methods for inhibiting the activity of HIV aspartyl protease using the compounds of this invention and methods for screening compounds for anti-HIV activity.
Patent CA-2144441-A1 (CA)
Title: Dexpanthenol-containing plaster for the transdermal application of steroid hormones
Inventor: ROREGER MICHAEL
IPC: A61K9/70
Filed: 1993-08-16
Abstract: A self adhesive plaster for the transdermal application of steroid hormones with a backing impermeable to active agents, an adhesive layer containing the active agent and a protective layer removable before the application of the plaster to the skin, in which the active agent-containing adhesive layer contains a hot-melt adhesive with a processing temperature of between 60 and 100°C and dexpanthenol in a concentration of 15 to 25 wt.%.
Patent CA-2146378-A1 (CA)
Title: Differential pressure switch with an adjusting piston drive n by a restoring spring for an oil-separating air filter
Inventor: SAUER BERND
IPC: H01H35/24
Filed: 1995-04-05
Abstract: A differential pressure switch particularly suitable for monitoring dirt accumulation on a filter element of an oil-separating air filter comprising a piston which is movable in response to a relative change in pressure between two pressure zones and is biased in one direction by a restoring spring, and a rolling membrane which separates the pressure zones.
Patent CA-2146652-A1 (CA)
Title: Private branch exchange system and methods for operating same
Inventor: MATERN WILLIAM T
IPC: H04Q11/04
Filed: 1993-10-07
Abstract: A digital private branch exchange system (10, 10') and methods of operating same are provided. A system (10, 10') is cap-able of providing improved and integrated conference calling, voice mail, music on hold, call forwarding features, without being subject to the typical problems associated with the prior art.
Patent CA-2148812-A1 (CA)
Inventor: FREDJ ABDENNACEUR
IPC: C11D3/28
Filed: 1993-11-03
Abstract: 2148812 9411478 PCTABScor01 A) A non-iron metallocatalyst selected from: a) non-iron metalloporphin and water-soluble or water-dispersable derivatives thereof; b) non-iron metalloporphyrin and water-soluble or water-dispersable derivatives thereof; c) non-iron metallophthalocyanine and water-soluble or water-dispersable derivatives thereof; B) an efficient amount of a hydrogen peroxide bleaching agent.
Patent CA-2150015-A1 (CA)
Title: Dot product circuit for multipath receivers
Inventor: WEAVER LINDSAY A JR
IPC: H04L1/06
Filed: 1993-11-18
Abstract: A method and apparatus for computing a scalar projection of a vector onto another vector. The apparatus comprises a multiplying circuit (94) and a summing circuit (96). The multiplying circuit (94) is for multiplying a value representative of a first component of a first vector with a value representative of a first component of a second vector to provide a first intermediate value, and for multiplying a value representative of a second component of a first vector with a value representative of a second component of a second vector to provide a second intermediate value. The summing circuit (96) sums the first and second intermediate values to provide a resultant value representative of the scalar projection of the first vector onto the second vector. The apparatus may further comprise a first storing circuit (80, 82), a first selection circuit (88), a second storing circuit (84, 86) and a second selection circuit (90).    The first storing circuit (80, 82) is for storing the values representative of the first and second components of the first vector, and the second storing circuit (84, 86) is for storing the values representative of the first and second components of the second vector. The selection circuits (88, 90) provides an ordered supply of these values to the multiplying circuit (94).
Patent CA-2150740-A1 (CA)
Title: Process for the manufacture of isomaltitol
Inventor: GOLDSCHER RIVKA LABIN
IPC: C13K13/00
Filed: 1995-06-01
Abstract: The present invention relates to an improved process  for the   manufacture  of  Isomaltitol  by  hydrogenation  of Isomaltulose. According to the  process,  a  solution  of Isomaltulose  having a  concentration  in  the  range of between 20% to  50%  by  weight,  is  hydrogenated  at  a temperature  in the range of between 80°C to 130°C, using a catalyst selected from Ruthenium, Nickel  and  mixtures thereof on an inert support at a pressure below 50 atmos-pheres, the pH being maintained in the range of 3  to  8.          The  resulted  product  is  substantially free from other polymers. Among the advantages of the process  it  should be  mentioned  the  fact  that  it enables to achieve the desired ratio between the two  isomers  .alpha.-Glucopyranosyl-1,1-Mannitol  (GPM)  and  .alpha.-Glucopyranosyl-1,6-D-Sorbitol (GPS).
Patent CA-2151111-A1 (CA)
Title: Data communication system through personal computers and terminal adapter therefor
Inventor: OGAWA HIRONOBU
IPC: G06F13/00
Filed: 1995-06-06
Abstract: In a data communication system, a plurality of personal computers are connected through respective terminal adapters to a telephone line.   Each terminal adapter includes a communication control section, a storage section and a network control unit (NCU).   The communication control section includes  a central processing unit (CPU), a read only memory (ROM) and a modulator-demodulator or modem.  The terminal adapter has a power supply independent of a power supply of the personal computer so that power can be applied to the terminal adapter even when the personal computer is not connected to the power supply.  The terminal adapter can automatically receive a mail regardless of the status of the personal computer.   The received mail is stored in the storage section of the terminal adapter.  When a recipient reads the received mail, the personal computer is started up and a key board connected to the personal computer is operated in accordance with a menu.   In transmission of a mail, the key board is operated in accordance with a menu so that a desired addressee is automatically called and the mail is automatically transmitted to the addressee.
Patent CA-2151709-A1 (CA)
Title: High speed thermomechanical actuator
Inventor: SCHNEIDER EDWARD T
IPC: B25J9/14
Filed: 1994-01-10
Abstract: A heat sink (14) provides thermal communication between an actuator (18) and fluid controlled by a valve (12) which is flowing through a conduit (10). The actuator includes a vessel which is defined on its largest surfaces by plates (22, 50) of beryllium oxide thermally conductive ceramic covered with thermally conductive, relatively electrically nonconductive nichrome foil (24, 26). Longitudinal sides (30, 32) of the vessel are also relatively non-conductive. A thermally and electrically conductive core, such as accordion pleated beryllium copper foil (44) or a carbon fiber mat (82, 116) is disposed in the chamber.  Electrical current flows through the core itself (Figure 4) or through electrically insulated heating wires (80)(Figure 5) or through an electrically insulated heating surface layer (Figure 6) causing resistance heating and melting of a non-gaseous polymeric phase change compound (46). The resistance heating current is inductively induced in the embodiment of (Figure 8). The polymeric core material expands transferring force through a rubber core (66, 108) to a push pin (68, 130). Fluid flowing through the conduit (10) draws heat from the phase change material through the core, the vessel, and the heat sink to solidify the phase change compound, causing the push pin to be retracted. The phase change compound is selected and the actuator is sized to achieve an actuation time of less than 500 milliseconds.
Patent CA-2154494-A1 (CA)
Title: Method of Building Architectural Panels
Inventor: ISHII MIKIO
IPC: E04H17/14
Filed: 1995-07-24
Abstract: Fixtures, each constituted of a nail, screw or rivet, are driven in a bed of a fence, gate or a wall of a building in such a way that a part of each fixture protrudes from the bed.  A groove or holes, formed in a face member, are fitted over the fixtures, and the face member is secured to the bed by an adhesive.  This method eliminates the need for providing grooves in the beds by a special cutter or providing a easily damageable projection on the face member, and facilitates the attachment of the face members to the beds.
Patent CA-2155239-A1 (CA)
Title: Reusable meter seal
Inventor: GIGUERE ANDRE
IPC: G09F3/03
Filed: 1995-08-02
Abstract: A reusable seal for a meter having a seal receiving passage includes a rigid shackle having a pair of shackle ends; and a reusable lock body for releasably rigidly connecting the shackle ends. The shackle has a seal portion for fittingly extending through the seal receiving passage when the shackle ends are connected by the lock body and a portion of larger cross-section than the seal portion for restricting the movement of the shackle in the seal receiving passage. The portions of the shackle are directly adjacent to one another and the portion of larger cross-section preferably extends over the remainder of the shackle to give the shackle more strength and rigidity. The seal is more tamper resistant and tamper evident.
Patent CA-2155900-A1 (CA)
Title: Control Mechanism for Water Treatment Apparatus
Inventor: VAUGHAN DON
IPC: C02F1/42
Filed: 1995-08-11
Abstract: A control mechanism for a liquid treatment system including a first tank having an inlet and an outlet and a second tank having an inlet and an outlet. The control mechanism includes an inlet passage for receiving liquid to be treated and an outlet passage for dispensing treated liquid. A first valve is provided having a first chamber in fluid communication with the inlet passage and a second chamber in fluid communication with the outlet passage. The first valve is rotatable between a first position and a second position. A second valve is provided in fluid communication with the second chamber of the first valve. The second valve is adapted to selectively open and close a fluid path between the second chamber of the first valve and the first tank and to selectively open and close a fluid path between the second chamber of the first valve and the second tank. When the first valve is located in the first position, the first chamber is in fluid communication with the inlet of the first tank and is sealed from the second tank and the second chamber of the first valve is in fluid communication with the outlet of the first tank. When the first valve is located in the second position, the first chamber is in fluid communication with the inlet of the second tank and the inlet of the second tank and is sealed from the first tank and the second chamber is in fluid communication with the outlet of the second tank.
Patent CA-2156308-A1 (CA)
Inventor: JORGENSON LORNE BARRY
IPC: B60R25/02
Filed: 1995-08-17
Abstract: This invention, the BOAT-SECURE, is a device to discourage theft of, by steering, an outboard motor with a tiller handle.
Patent CA-2156361-A1 (CA)
Title: Air bag module
Inventor: JENKINS JEFFREY A
IPC: B60R21/20
Filed: 1995-08-17
Abstract: An air bag module (10) includes a housing (12), an air bag (14), and an inflator (16). A pair of wave springs (20, 22) are mounted on opposite end walls (40, 42) of the housing (12). The springs (20, 22) engage opposite end portions (132, 134) of the inflator (16) to secure the inflator to the housing (12). The inflator (16) extends through a cardboard plenum tube (18) in the housing (12). The plenum tube (18) keeps open a passage in the air bag (14) for insertion of the inflator (16) during assembly of the module (10).
Patent CA-2156842-A1 (CA)
Title: Stabilized vacuum apparatus for industrial multiple-bed hide driers
Inventor: CORNER ANTONIO
IPC: C14B1/58
Filed: 1994-03-21
Abstract: The apparatus includes a main vacuum source (PA) that can be connected to a series of evaporation beds (1, 1', 1") to product a negative pressure having a preset value in the beds, in steady-state operating conditions. There is a secondary vacuum source (P B) which is suitable to produce, in one bed at a time, a negative pressure which is close to the steady-state value, and there is a valve means to selectively connect each bed, which is initially at ambient pressure, first to the secondary vacuum source (P B) and then to the main vacuum source (P A), so as to eliminate substantial pressure variations in the remaining beds when each bed is connected to the main vacuum source. The valve means includes, for each bed, a first electric valve (4, 4', 4") on a line for connection to the outside environment, a second electric valve (5, 5', 5") on a line (3, 3', 3") for connection to the secondary vacuum source (P B), and a third electric valve (6, 6', 6") on a line (2, 2', 2") for connection to the main vacuum source (P A). There is also a control unit (7) suitable to control the cyclic sequential opening and closure of the first, second and third electric valves of each bed.
Patent CA-2157535-A1 (CA)
Title: Chemical for the prevention of attachment of microorganisms to surfaces
Inventor: ROBERTSON LINDA R
IPC: C02F1/50
Filed: 1995-09-05
Abstract: The inventors have discovered a new method of treating aqueous systems and surfaces in the aqueous systems that prevents or inhibits the adhesion of bacterial cells to the surfaces and thereby controls the biological fouling of the surfaces is disclosed. The process comprises adding to the aqueous system an adhesion-inhibiting amount of vinyl cationic polymer. This method effectively inhibits the adhesion of the bacterial cells to exposed surfaces without killing the fouling organisms and also without harming non-target organisms. In addition, the method of the present invention advantageously does not cause the formation of harmful substances in the effluent from the systems treated.
Patent CA-2158098-A1 (CA)
Title: Stir-in organic pigments
Inventor: BAEBLER FRIDOLIN
IPC: C08K5/00
Filed: 1995-09-12
Abstract: Disclosed is a process for coloring high-molecular-weight organic materials which comprises uniformly dispersing an effective pigmenting amount of a stir-in pigment in the high-molecular-weight organic material; wherein the stir-in pigment is an organic pigment crude consisting essentially of non-platelet-shaped particles having an average particle size of from 0.5 to 25 µm and/or a pigment composition consisting essentially of an organic pigment having an average particle size of from 0.01 to 25 µm and inorganic filler pigment.