baber/WOPTO huggingface dataset:
Patent CA-2082710-A1 (CA)
Title: Fluorescent lamps having reduced interference colors
Inventor: JANSMA JON B
IPC: H01J61/35
Filed: 1992-11-12
Abstract: FLUORESCENT  LAMPS HAVING REDUCED INTERFERENCE COLORS          ABSTRACT OF THE DISCLOSURE     Fluorescent lamps having a tin oxide layer protected by a layer of colloidal alumina having a median particle diameter below 0.4 micron exhibit an objectionable pearlescent coloration if the alumina layer thickness is within the range of 500-8,000 .ANG.. this coloration is reduced to an acceptable level by incorporating from 10-30 wt. % of particulate alumina having a median diameter above 0.75 micron in the colloidal alumina.
Patent CA-2085320-A1 (CA)
Title: Shaft support assembly for use in a polygon mirror drive motor
Inventor: IDE RUSSELL D
IPC: F16C17/10
Filed: 1992-12-14
Abstract: ABSTRACT       A shaft support assembly particularly well suited for supporting the high speed rotor in a laser polygon mirror drive motor assembly.  The rotor has coni-cally tapered ends.  These ends are supported by conical plain bearings.  At least one of the bearings is adjust-able with respect to the shaft and the bearing so that the gap between the shaft and bearing can be easily adjusted.
Patent CA-2087189-A1 (CA)
Inventor: TUTTO PETER
IPC: G01N27/00
Filed: 1991-07-11
Abstract: 2087189 9201234 PCTABS00010 The invention relates to a process for determining the carrier concentration in a semiconductor by applying between an ohmic contact and a rectifying contact formed on said semiconductor, a d.c.  voltage resulting in a reverse bias Udc, and two periodic excitation signals having the frequencies .OMEGA.1 and .OMEGA.2, respectively. The process can be characterized in that .OMEGA.1 is bigger than .OMEGA.2, such that .OMEGA.1, .OMEGA.2, their difference (.OMEGA.1-.OMEGA.2) and their sum (.OMEGA.1+.OMEGA.2) are in the same order of magnitude, selecting two components from the electronic response of said semiconductor to the excitation, the first component being the electrical response to said frequency .OMEGA.1 and .OMEGA.2 and the second component being a first order intermodulation product of one of .OMEGA.1 and .OMEGA.2, and determining said carrier concentration by simultaneous, parallel analysis of said first and second components. The invention relates further to an apparatus for determining the carrier concentration in a semiconductor comprising a semiconductor sample having an ohmic contact and a rectifying contact; means for applying a d.c.  voltage between said contacts, resulting in a reverse bias Udc, and two periodic excitation signals having the frequencies .OMEGA.1 and .OMEGA.2 respectively; oscillators to generate said periodic excitation signals; means for generating reference signals; means for amplifying two components selected from the electronic response of said semiconductor to the excitation, the first component being the electrical response to said frequency .OMEGA.1 or .OMEGA.2, and the second component being a first order intermodulation product of one of .OMEGA.1 and .OMEGA.2; and two phase-sensitive rectifiers for rectifying said selected two a.c. components.
Patent CA-2089435-A1 (CA)
Title: Semiconductor device
Inventor: KOBAYASHI KENZI
IPC: H01L23/055
Filed: 1993-02-12
Abstract: A semiconductor device having an IC (Integrated Circuit) chip packaged on a circuit board, and a cap for hermetically sealing the chip. The cap is bonded to the circuit board at the edges of an open end thereof and bonded to the chip at the underside or bottom thereof. To accurately position the chip on the circuit board, the circuit board is provided with a groove or a shoulder in a position where it faces the edges of the open end of the cap. After the chip has been positioned on the circuit board, the cap is bonded to the circuit board via the groove or the shoulder.
Patent CA-2089507-A1 (CA)
Inventor: DAVIES LAWRENCE W
IPC: B29C48/06
Filed: 1991-08-16
Abstract: Transverse fibers are added to a pultruded part by forming a body of the fibers and resin in a first die part which body is dimensioned smaller than that of the die through which the body is to be passed. A fluid including cut fibers is then applied un-der pressure to the body just upstream of the die so that the cut fibers become integrated with the body into the spaces defined in the body. The continuous fibers, the cut fibers and the resin are then passed through the die and become integrateed into a pul-truded part with the transverse cut fibers providing a transverse strength.
Patent CA-2090184-A1 (CA)
Title: Liquid ring pumps with improved housing shapes
Inventor: DARDIS THOMAS R
IPC: F04C19/00
Filed: 1993-02-23
Abstract: Abstract of the Disclosure In liquid ring gas pumps of the type having a rotor rotatably mounted in a stationary housing for forming a quantity of pumping liquid into a recirculating ring inside the housing, fluid friction loss between the liquid and the housing is reduced by shaping the surface of the housing which is in contact with the liquid ring radially outside the rotor so as to minimize or at least substantially reduce the area of that surface.
Patent CA-2090551-A1 (CA)
Inventor: PORTIS RALPH G
IPC: F16K31/12
Filed: 1993-02-26
Abstract: Coupling apparatus includes a bracket fixed to the housing of an air motor and an actuator member fixed to the rotary output shaft of the air motor for coupling the air motor in driving engagement with a handwheel-operated valve for remote power actuation thereof.  The apparatus is freely movable into and out of coupling engagement with the valve in directions axially of the valve stem without the use of tools, the actuator legs being movable into rotating engagement with the handwheel for rotation thereof simultaneously with movement of the bracket into non-rotatable engagement with the valve body for anchoring the motor housing and preventing rotation thereof with its output shaft.  Two embodiments are disclosed, one for use with a valve having a solid handwheel and a yoke and the other for use with a valve having a spoked handwheel and no yoke.
Patent CA-2090819-A1 (CA)
Inventor: MIX RENARD E
IPC: H01M50/541
Filed: 1993-03-02
Abstract: BATTERY ASSEMBLY PROCESS AND APPARATUS         Abstract of the Disclosure Method and apparatus for joining lead battery parts (e.g., plate lugs, intercell connectors, terminals, etc.) together via a low resistance electrical coupling wherein substantially oxide-free, arc-melted, superheated molten lead is cast into a cavity between the parts.  The parts are shielded from the arc while being bathed in a non-oxidizing atmosphere which is preferably formed from an ionizable, non-oxidizing gas heated by the lead-melting arc and spewed onto the parts along with the molten lead to provide additional heat thereto.
Patent CA-2093169-A1 (CA)
Inventor: HANNING DAVID M
IPC: F24H1/20
Filed: 1993-04-01
Abstract: The top storage tank end wall of a down-fired water heater has a first circumferentially spaced series of circular openings formed therethrough  and centered  about the  tank  axis,  and a  second circumferentially spaced series of circular openings centered about the tank axis and spaced radially outwardly of the first series of openings.      Vertically   disposed  within   the   tank   is   a circumferentially spaced series of hollow U-tube immersion heating members each having a first open upper end secured to one of the first series of openings, and a second open upper end secured to one of the second series of openings.   Shot-type fuel burners extend downwardly into the second open upper tube ends and are supplied with gaseous fuel via a manifold ring positioned atop the water heater.   Hot combustion gases from the burners are drawn through  the U-tubes  by  a  draft  inducer  fan having  an  inlet connected to the first open upper ends of the tubes.   In an alternate embodiment of the water heater, air-driven power fuel burners are connected to the first open upper tube ends and are supplied with driving air through a manifold structure connected to the outlet of a supply air blower.  Combustion gases forced out the second tube ends are collected in an exhaust manifold structure for venting to atmosphere.
Patent CA-2096020-A1 (CA)
Title: 2.beta.,19-methyleneamino bridged steroids as aromatase inhibitors
Inventor: JOHNSTON J O'NEAL
IPC: A61K31/58
Filed: 1991-10-17
Abstract: The present invention is directed to 2.beta.,19-(methyleneamino)androst-4-ene-3,17-dione and the corresponding 17.beta.-ol which are useful as aromatase inhibitors. The compounds are prepared by the cyclization of an appropriate 19-N-protected-[(2-methox-yethoxy)methylamino] steroid using titanium tetrachloride followed by, if desired, selective reduction of the 17-ketone.
Patent CA-2097952-A1 (CA)
Title: Early diagnosis of sepsis utilizing antigen-antibody interactions amplified by whole blood chemiluminescence
Inventor: ROMASCHIN ALEX D
IPC: G01N33/68
Filed: 1993-06-08
Abstract: A method for determining the extent of sepsis in a patient by detecting the presence of antigen indicative of sepsis in a patient blood-derived test sample containing white blood cell fractions, the method comprises: i) incubating the test sample with antibodies specific to the antigens indicative of sepsis to form antibody/antigen complexes, ii) introducing a chemiluminescent compound to the test sample, and iii) allowing the antibody/antigen complexes to interact with the white blood cell fractions to produce oxidants.      After the above steps are conducted in any order then: iv) the oxidants reacting with the chemiluminescent compounds cause luminescent light to be emitted from the test sample, and v) the emitted light over a predetermined period is measured and correlated with the extent of sepsis.
Patent CA-2099873-A1 (CA)
Inventor: MCGRATH RALPH D
IPC: B29C67/20
Filed: 1992-11-12
Abstract: A method for continuously manufacturing a composite sandwich structure  by  pultrusion  through  a  pultrusion die comprises arranging fiber reinforcement materials on the surface of  a  preformed  foam  core,  applying  liquid  resin  to  the reinforcement materials on the surface of the foam core, heating the surface region of the foam core to a temperature of at least 100°C to  convert   water  in  the foam core  to  steam,  thereby causing water vapor pressure expansion of  the  foam, and using the expansion of the foam core to  subject  the liquid  resin to increased pressure.
Patent CA-2100566-A1 (CA)
Title: Liquid toner developer
Inventor: ADAM YOSSI
IPC: G03G15/01
Filed: 1992-01-21
Abstract: Imaging apparatus including an electrostatic imaging surface (10), latent image forming (16) apparatus for forming an electrostatic latent image on said electrostatic imaging surface (10) and development apparatus (22) for developing said electros-tatic latent image which includes supply apparatus (20) for supplying a liquid toner to the image forming surface (10), the supply apparatus (20) including a multiplicity of independently controllable outlets (106), preferably spray outlets, and a development surface (38) for developing the electrostatic latent image using the liquid toner. The supply apparatus (20) is preferably a multi-color supply apparatus and the multiplicity of outlets (106) includes a plurality of the individually controllable outlets, for supply-ing liquid toner of each of a plurality of colors.
Patent CA-2100596-A1 (CA)
Title: Pectin methyl esterase
Inventor: CHEETHAM PETER S J
IPC: C12N9/16
Filed: 1993-07-15
Abstract: Abstract A novel class of pectin methyl esterases, having pectin methyl esterase activity not inhibited by tyrosine selective inhibitors, is disclosed.  The enzymes are present in certain plant enzyme extracts, particularly papain, ficin, bromelain and wheat germ lipase.  The enzymes are effective to reduce the degree of methoxylation of pectin without significant reduction in pectin molecular weight.
Patent CA-2102727-A1 (CA)
Inventor: LIM CHOW P
IPC: B65D19/34
Filed: 1993-11-09
Abstract: There is disclosed a paper pallet comprising a first sheet,  a second sheet and support means used to maintain the sheets in a parallel spaced relation.   The support means is part of the first sheet and second sheet formed by cutting, creasing, folding and securing tongues. The tongue of one sheet intersects at a 90 degree angle with the tongue of the outer sheet, and a flange is secured to a slot provided in one tongue to form a "slot in" locking means.  The strength of the present invention can be further increased by adding a reinforcement core to the inside of the hollow space within the support means, or alternatively, the reinforcement core may enclose tongues which are fastened together to form the support means.  The invention can be varied in dimension, height and numbers of the support means.
Patent CA-2105080-A1 (CA)
Title: Wrap spring clutch for percussive apparatus
Inventor: LYON LELAND H
IPC: E21B6/06
Filed: 1992-04-16
Abstract: A clutch assembly (16) transmits rotary motion in a percussive apparatus (10) to a drill steel. The clutch assembly (16) includes a first hub (18) having a first cylindrical surface (24) formed thereon. A second hub (20) which is substantially rotationally coupled to the drill steel, has a second cylindrical surface (26) formed thereon. The second cylindrical surface (26) is coaxial with the first cylindrical surface (24). A wrap spring (17) engages a portion of both the first cylindrical surface (24) and the second cylindrical surface (26), wherein relative rotary motion between the first hub (18) and the second hub (20) is permitted in a first direction and restricted in a second direction. The wrap spring clutch (16) transmits motion supplied from a rifle bar assembly as well as a plunger bar arrangement.
Patent CA-2106369-A1 (CA)
Title: Board to board interconnect
Inventor: RAMSEY JAMES M
IPC: H01R12/71
Filed: 1992-08-04
Abstract: According to the present invention, an electrical connector (10) includes a body (18) having first and second portions (20 and 30). The connector (10) also includes a plurality of first contacts (26) situated in the first portion (20) of the body (18). Each of said first contacts (26) includes a first end portion (44) configured to be coupled to a conductive member (46) on a printed circuit board (14) and a second free end portion situated within the first portion (20) of the body (18) to define a movable spring contact surface section (64). The connector (10) further includes a plurality of second contacts (42) situated in the second portion (30) of the body (18). Each of said second contacts (42) includes a first end portion (48) configured to be coupled to a conductive member (49) on the printed circuit board (14) and a second end portion (78) coupled to the second portion (30) of the body (18) to define a fixed contact surface section (76). The connector (10) is configured to mate with an identically shaped second connector (12) coupled to a second printed circuit board (16).
Patent CA-2106793-A1 (CA)
Inventor: NARITA MITSUMASA
IPC: B27L5/02
Filed: 1993-09-23
Abstract: A method and apparatus for rotary-cutting a timber to peel off a veneer by a cutting knife from the outer periphery of a timber while rotating the timber around its longitudinal axis.  The timber is gripped at its two end faces by means of chucking pawls which are driven in rotation.   The chucking pawls comprise a plurality of chucks  which  are  different  in  radial  position.    The chucks grip the timber at the end faces thereof adjacent to the outer peripheral surface of the timber, and as the timber is cut by the knife and reduced in diameter so that  the  knife  comes  close  to  a  presently  outermost chuck, the outermost chuck is retracted axially away from the end face of the timber, and the next outermost chuck continues to grip the timber adjacent to the presently outer peripheral surface of the timber.  For this reason, the gripping  force by  the  chuck pawls,  resisting  the cutting force moment, can be made small, and the timber gripping is made reliable.
Patent CA-2106975-A1 (CA)
Title: Process for conditioning of water-soluble substances
Inventor: TROFAST JAN
IPC: A61K/
Filed: 1992-03-24
Abstract: A process for providing water-soluble micronized substances, which can be produced, stored and used while maintaining the aerodynamic properties required for inhalation of such substances, which process is carried out by: a) reducing, if necessary, the residual water from the micronized substance by drying optionally at an elevated temperature and/or vacuum; b) condition-ing said dried, micronized substances with a solvent; and c) eliminating residual solvent by storing in a dry place like vacuum or by purging with an inert gas.
Patent CA-2107664-A1 (CA)
Title: Revetement resistant a l'attaque chimique
Inventor: BUDDE ANNA M
IPC: C08J3/24
Filed: 1992-04-16
Abstract: Cette invention concerne une composition de revêtement comprenant un polymère qui est constitué du reste d'un monomère à empêchement stérique. La présence de ce monomère permet de produire un revêtement qui résiste aux attaques corrosives du milieu ambiant.
Patent CA-2107844-A1 (CA)
Inventor: RAMPRASAD DORAI
IPC: B01J20/22
Filed: 1993-10-06
Abstract: ABSTRACT     High capacity solid state compositions comprising cyanocobaltate complexes have been developed which are capable of reversibly chemically binding oxygen to selectively remove oxygen from an oxygen-containing fluid stream.  The cyanocobaltate complexes which make up the compositions comprise a cobalt (II)-containing anion having from 3 to 5 cyanide ligands wherein at least one cyanide stretching mode, as measured by infrared spectroscopy, is between 2074 cm-1 and 2140 cm-1.  Additionally, these complexes have a charge-balancing cation having a molecular volume in excess of 40.ANG.3.
Patent CA-2109030-A1 (CA)
Title: Catheter Tube and Method of Manufacturing the Tube
Inventor: OKAJIMA NAOFUMI
IPC: A61M25/00
Filed: 1993-10-22
Abstract: A catheter tube is composed of a main portion 22 and a tip portion 23.  The main portion 22 of the catheter tube is of such a structure that an inner tube 4 and an outer tube 6 are joined via a reinforcing material layer 5, but the tip portion 23 is of such a structure that only the inner tube 4 and the outer tube 6 are joined without intervening the reinforcing material layer 5 between the two tubes.  The reinforcing material layer 5 is formed by arranging a filamentous element (e.g., stainless steel wire) 51 around the inner tube in a lattice manner.  The inclination angles .theta.1, .theta.2 and .theta.3 of the filamentous element 51 with respect to the axis of the catheter tube at the first, second and third regions 221, 222 and 223, respectively are determined so as to establish the relationship as .theta.1 > .theta.2 > .theta.3.  Therefore, the rigidity of the catheter 2 can be increased in accordance with the decrease of the inclination angle of the filamentous element 51.  According to the catheter tube, excellent pushing, torque transmission, follow-up to a guide wire, and kink-resistant characteristics can be attained, simultaneously and respectively.
Patent CA-2109736-A1 (CA)
Title: Medical appliance
Inventor: FOX ROGER H
IPC: A61H23/04
Filed: 1993-11-23
Abstract: Apparatus for therapeutically or prophylactically treating a diagnosed or potential deep-vein thrombosis involves intermittent application of tourniquet action to the leg at a location preferably close to the ankle, i.e., at the distal-calf region of the leg, in time-coordinated relation to artificially stimulated foot-pump action; the level of tourniquet action is such as to reduce the availability of superficial veins to carry the venous-return flow that is stimulated by foot-pump action, and the level of tourniquet action is also insufficient to materially affect access to deep-veins which are the primary target of therapeutic or prophylactic treatment.      In a modification, the sequencing of tourniquet and foot-pump action is changed to enhance the priming of blood in the plantar veins of a foot which must remain elevated above the heart level of a patient confined to bed, whereby circulation can be more effectively stimulated by foot-pump action.
Patent CA-2110781-A1 (CA)
Title: Two-way file management system
Inventor: CORKOVIC STEPHEN
IPC: G06F17/30
Filed: 1993-12-06
Abstract: This invention relates to the electronic file management process that makes use of a miniaturized computer, that stores a variety of customized file parameters or file descriptors, referred to as file profiles further on, to activate and control related, file profile defined, customized electronic data file processing. The system includes interfaces to other computers or intelligent terminals e.g., personal computers, mini-computers etc. File processing also includes automatic profile updating.
Patent CA-2111048-A1 (CA)
Title: Pressure regulator vent piping coupler
Inventor: HAWKINS JAMES C
IPC: F16L55/07
Filed: 1993-12-09
Abstract: A vent piping coupler for coupling vent piping to a threaded vent outlet of a pressure regulator or other venting device to vent the device vent outlet a remote location. A coupler body with a first threaded section for threadably mounting into the vent outlet, a locking ring with projecting tabs to grip into the vent outlet, and a lock nut threadably mounts to a second threaded section on the coupler body which includes a slot. The lock ring has an anti-rotation tab engaged in the slot to lock the coupler body in position on the vent outlet when the lock nut is tightened. A grip ring with inwardly angled teeth is crimp mounted at the other coupler body end to insertably receive a vent piping which is locked in position by the angled teeth. Respective O-rings may be used to seal the coupler body to the vent outlet and to the vent piping.
Patent CA-2113575-A1 (CA)
Title: Modular, user programmable telecommunications system with distributed processing
Inventor: VAZIRI FARAMARZ
IPC: H04M3/00
Filed: 1992-07-15
Abstract: A telecommunications system (10) is provided to conned a plurality of dissimilar types of subscriber telecommunications devices and to provide integrated telecommunications services. The system is provided with a digital communications link (55) comprising a PCM bus for voice and data and an HDLC coded PCM highway for control signals to create a master/slave envir-onment, wherein a central processing board (56) operates as a master processor for a plurality of peripheral processor boards (54). The peripheral boards are coupled to various subscriber telecommunications devices. The CPU board is provided with hier-archical program control that includes low level program code for driving CPU  board components, and mid-level program code for effecting system functions and CPU board functions: The high level, telecommunications language provides a system user with a programming language to create program modules for processing packets of data. The hierarchical program control levels operate to conceal dissimilarities between the subscriber telecommunications units to facilitate use of the high level programming language.
Patent CA-2116571-A1 (CA)
Title: High Voltage Capacitor and Magnetron
Inventor: IWAYA SHOUICHI
IPC: H01G4/35
Filed: 1992-08-26
Abstract: A high voltage capacitor is disclosed that comprises a grounding member (1), two through type capacitors (2 and 3), an insulating case (6) and insulating resin (71 and 72). The grounding member (1) has two raised portions (101 and 102) on which the through type capacitors (2 and 3) are secured. The insulating case (6) has two hollow cylindrical portions (61, 62) spaced apart by a distance D with their upper open ends joined to each other to form a recessed enclosure (63) in line with and following the inner diameter sections (611, 621) of the hollow cylindrical portions (61, 82) and their lower open ends fitted on the outer circumference of the raised portions (101, 102). The insulating resin (71 and 72) is provided around the through type capacitors (2 and 3) within the inner diameter sections (611, 621). It is thus possible to provide a high voltage capacitor with superior mechanical strength and excellent withstand voltage characteristics even in humid environments and that is small in size and inexpensive.