baber/WOPTO huggingface dataset:
Patent CA-2000702-A1 (CA)
Inventor: MENZIES L WILLIAM JR
IPC: H01G4/35
Filed: 1989-10-13
Abstract: SURFACE MOUNTED DECOUPLING CAPACITOR                L. William Menzies, Jr.                    Stephen W. Menzies ABSTRACT OF THE DISCLOSURE     A decoupling capacitor is mounted on a thin auxiliary board and connected by metallization traces on the board to a single pair of plug-in contact press-fitted into a pair of apertures in a pair of integral tabs extending from the board. The auxiliary board and capacitor height is not more than about 0.070 inches. The plug-in contact are pluggable into a pair of sockets in a printed circuit board. The auxiliary insulative board with its attached capacitor is sandwiched between a surface of a printed circuit board having a plurality of sockets, and the underside of a dual-in-line (DIP) integrated circuit package. At least two leads of the DIP package are inserted into the pair of insertable contacts in the auxiliary insulative board while the remainder of the DIP package leads are inserted directly into other sockets in the printed circuit board.  In one embodiment,  other DIP leads pass through clearance holes in a second pair of integral tabs.  Another embodiment provides for redundant capacitors each connected to separate pairs of contacts on the auxiliary board for interconnection of two ground leads and two power leads of the DIP to respective PC board sockets.
Patent CA-2002413-A1 (CA)
Title: Treatment of myelosuppression associated with acquired immune deficiency
Inventor: BONNEM ERIC M
IPC: A61P7/00
Filed: 1989-11-07
Abstract: ABSTRACT          Pharmaceutical compositions and methods of treatment are useful for treating myelosuppression anc viral infectlons associated with AIDS, particularly cytomegalovirus retinitis.  Such compositions and traatments utilize an antiviral effective amount of 9-(1,3-dihydroxy-2-propoxymethyl) guanine (DHPG) in combination with an anti-myelosuppressive effective amount of granulocyte macrophage colony stimulating factor (GM-CSF).  The use of DHPG and of GM-CSF for the preparation of a pharmaceutical composition for use in this combination treatment as well as kits containing pharmaceutical compositions containing DHPG and GM-CSF are also disclosed.
Patent CA-2004817-A1 (CA)
Inventor: LYGREN EIVIND
IPC: C02F3/22
Filed: 1989-12-07
Abstract: PCT No. PCT/NO89/00126 Sec. 371 Date Jun. 7, 1991 Sec. 102(e) Date Jun. 7, 1991 PCT Filed Dec. 7, 1989 PCT Pub. No. WO90/06288 PCT Pub. Date Jun. 14, 1990.Contaminated water is caused to flow up through a chamber while aerated to produce air bubbles of a size mainly in the range of 0.03 mm to 1 mm by means of air diffusors disposed at the bottom of the chamber. Organic and inorganic impurities in the water is, by a combination of water flow, flotation and physical adsorption caused by the air bubbles, brought to the surface of the water in the chamber, where a foam containing dissolved impurities is formed and instantly removed from the chamber while a mixture of water particles and microscopic air bubbles is allowed to flow over a partition wall into an adjacent basin having a considerably larger volume than that of the chamber. In the basin a flotation process will take place causing a slurry to form on the surface of the water in the basin, which is removed, preferably at the end of the basin opposite the chamber. The rising air bubbles from the diffusor in the chamber causes the water to circulate through the chamber and basin, the chamber and basin communicating above and below the partition wall. Preferably a biofilter medium having upwardly extending, intercrossing channels is disposed in the chamber.
Patent CA-2005368-A1 (CA)
Title: Holographic photopolymer compositions and elements containing a ring-opening monomer
Inventor: SMOTHERS WILLIAM K
IPC: C08G61/06
Filed: 1989-12-13
Abstract: TITLE IMPROVED HOLOGRAPHIC PHOTOPOLYMER COMPOSITIONS AND ELEMENTS CONTAINING A RING-OPENING MONOMER               ABSTRACT Presence of a ring opening monomer in a photopolymerizable composition improves reflection holograms prepared from the composition.
Patent CA-2007098-A1 (CA)
Title: Electronic security device
Inventor: ESCHBACH EUGENE A
IPC: G07C1/00
Filed: 1990-01-04
Abstract: ABSTRACT          The present invention relates to a security device having a control box (12) containing an electronic system (50) and a communications loop (14) over which the system transmits a signal.  The device is constructed so that the communications loop can be extended from the control box across the boundary of a portal such as a door into a sealed enclosure into which access is restricted whereby the loop must be damaged or moved in order for an entry to be made into the enclosure.   The device is adapted for detecting unauthorized entries into such enclosures such as rooms or containers and for recording the time at which such entries occur for later reference.  Additionally, the device detects attempts to tamper or interfere with the operation of the device itself and records the time at which such events take place.   In the preferred embodiment,  the security device includes a microprocessor-based electronic system (50) and a detection module (72) capable of registering changes in the voltage and phase of the signal transmitted over the loop.
Patent CA-2007404-A1 (CA)
Title: Natural rubber latex film products with improved tear resistance
Inventor: MILLER ROBERT G
IPC: B29C41/46
Filed: 1990-01-09
Abstract: ABSTRACT OF THE DISCLOSURE             NATURAL RUBBER LATEX FILM PRODUCTS   WITH IMPROVED TEAR RESISTANCE      Natural rubber latex compounds are modified by the addition of a high styrene content styrene-butadiene copolymer.  The films prepared from these modified NR latex compositions exhibit improved tear strength and a good balance of other properties.
Patent CA-2008047-A1 (CA)
Title: Lentille optique a vision simultanee pour la correction de la presbytie
Inventor: MIEGE CHRISTIAN
IPC: G02C7/06
Filed: 1990-01-18
Abstract: Cette  lentille optique est caractérisée en ce que la courbe représentative de sa proximité P, définie comme étant égale  à  l'inverse  de la distance D à laquelle un rayon lumineux  parallèle à son axe et de hauteur h par rapport à celui-ci  recoupe cet axe, s'inscrit dans une zone comprise entre  une courbe enveloppe inférieure (Pinf) et une courbe enveloppe supérieure (Psup) répondant aux équations suivantes :       Pinf = f(h) = ( .SIGMA. A'i hi ) + PVL Psup = f(h) = ( .SIGMA. A"i hi ) + PVL dans  lesquelles  PVL est la proximité en vision de loin et A'i, A"i des coefficients numériques dépendant de l'addition de  proximité  ajoutée en vision de près à la proximité en vision de loin.       Application à la réalisation de lentilles de contact, d'implants intra-oculaires, ou de lentilles intra-cornéennes pour presbytes.
Patent CA-2009645-A1 (CA)
Title: Illuminated electric shaver
Inventor: BARDHAN BIBHUTI B
IPC: B26B19/46
Filed: 1990-02-08
Abstract: ABSTRACT OF THE DISCLOSURE A conventional shaver is provided with one or more sources of light for illuminating the area of skin which is being shaved.
Patent CA-2010024-A1 (CA)
Title: Dispersion system for rapid curing cement compositions
Inventor: MOORE JAMES
IPC: C08G18/30
Filed: 1990-02-14
Abstract: Abstract Improved Dispersion System For Rapid Curing Cement Compositions Stable dispersions of dispersable isocyanate-reactive organic compounds in water are produced employing a stabiliser system comprised of a poly(hydroxyalkyl)amine, an ethoxylated alkyl phenol and a fatty acid.  When these compositions are blended with an hydraulic cement, a filler and an organic polyisocyanate, a rapid curing cement composition is produced which will yield surfaces possessing desireable appearance and properties.
Patent CA-2012554-A1 (CA)
Title: Prolong vcr tape cassette
Inventor: STACEY TYRONE B
IPC: G11B23/087
Filed: 1990-03-20
Abstract: ABSTRACT OF DISCLOSURE     A VCR cassette having a pair of hubs, one containing a pivotal member to which one end of a tape magnetized on both surfaces is fixed.  A first reel is mounted on the one hub and a tape-up reel is mounted on the other hub.  Mechanism is provided between the two reels for rotating the tape whereby video data can be recorded and played back on either surfaces of the tape.
Patent CA-2012668-A1 (CA)
Inventor: WANLASS FRANK
IPC: G11C11/405
Filed: 1990-03-21
Abstract: A static RAM cell includes a first pair of transistors, which act as pass or switching transistors during a read or write operation, and as leads during a refresh operation, and a second pair of current sink transistors connected as a cross-coupled flip-flop and connected to the first pair of transistors. The operation of the memory cell transistors during read and write and refresh operations is controlled by different levels of a control signal applied to their respective control terminals, whereby refreshing does not affect reading or writing of data from or into the SRAM cell.
Patent CA-2013211-A1 (CA)
Title: Adjustable dot gain simulation for color proofing
Inventor: BARRY ROBERT C
IPC: G03F3/10
Filed: 1990-03-28
Abstract: TITLE   ADJUSTABLE DOT GAIN SIMULATION FOR COLOR PROOFING       ABSTRACT    The image dot gain that normally occurs in a printing press is controllably simulated as a separate step in the process of producing accurate color proofs.  The simulation is attained by placing a diffuser plate between a high-intensity light source and a color-separated image master along with its corresponding image receptor.  By varying the position of the diffuser plate the percentage of image dot gain is accurately controlled as an independent variable without the need to alter the exposure time.
Patent CA-2015435-A1 (CA)
Title: Bisacylethylamines
Inventor: KARRER FRIEDRICH
IPC: A01N47/28
Filed: 1990-04-25
Abstract: PS/5-17569/=            Bisacylethylamines Abstract Novel N-acylated 2-[4-(halophenoxy)-phenoxy]-ethylcarbamic acid esters of formula I                  (I) wherein R1 is C1-C8alkyl or C3-C5alkenyl, R2 is C1-C8alkyl, C1-C8alkoxy, -CO-R7 or -NR8R9, R3 and R4 independently of one another are hydrogen or methyl, R5 is chlorine or fluorine, R6 is either the same substituent as R5 or is hydrogen, R7 is C1-C8alkoxy or -NR10R11, R8 is C1-C4alkyl, R9 is C1-C4alkyl or R8 and R9 together form a C4-C6alkylene chain which may be interrupted by oxygen, sulfur or -NCH3-, R10 is hydrogen or C1-C4alkyl and R11 is hydrogen or C1-C4alkyl, benzyl, phenyl, or phenyl substituted by halogen or by methyl, or R10 and R11 together form a C4-C6alkylene chain which may be interrupted by oxygen, sulfur or -NCH3-; their preparation, their use in pest control, and pesticidal compositions that contain those carbamic acid esters as active ingredient are disclosed.  The preferred field of application is the control of pests on animals and plants, especially the control of eggs and larvae of phytophagous insect and mite pests.
Patent CA-2016874-A1 (CA)
Inventor: TANNER DOUG
IPC: A43B3/16
Filed: 1990-05-16
Abstract: The present invention relates to a compact,  light weight hip-wading boot or leg and foot covering which would anhydrously cover the wearer's clothing including footwear and pant  legs. The   preferred   embodiment   comprises durable,   waterproof, expandable materials which collapse or fold for compact storage.
Patent CA-2019315-A1 (CA)
Title: Anthracycline derivatives, a process for the preparation thereof and the use thereof as a pharmaceutical
Inventor: HEDTMANN UDO
IPC: A61K31/70
Filed: 1990-06-19
Abstract: Abstract of the disclosure:        Novel  anthracycline  derivatives,  a  process  for  the preparation  thereof  and  the  use  thereof  as  a pharmaceutical The present invention relates to anthracycline deriv-atives of the formula I                         (I) in which R1 is the sugar residue Roa or the combination of sugars Roa-Rod-Rod and R2 is the sugar residue Roa, Roa being rhodosamine of the formula II                                   (II) and Roa-Rod-Rod being rhodosamine-rhodinose-rhodinose of the formula III                            (III) and the pharmacologically acceptable salts thereof, and a microbiological process for the preparation thereof.            The compounds have cytostatic activity and can therefore be used as pharmaceuticals.
Patent CA-2021849-A1 (CA)
Title: Hybrid development system
Inventor: FOLKINS JEFFREY J
IPC: G03G15/09
Filed: 1990-07-24
Abstract: ABSTRACT OF THE DISCLOSURE   An apparatus in which an electrostatic latent image recorded on a photoconductive member is developed with toner. A magnetic roll cooperates with a donor roll to define a nip therebetween. The magnetic roll advances a developer material comprising carrier and toner to the nip where a substantially constant amount of toner having a substantially constant triboelectric charge is deposited on the donor roll. A plurality of electrode wires are positioned in the space between the donor roll and the photoconductive member. The electrodes are electrically biased to detach the toner from the donor roll so as to form a toner cloud in the space between the electrodes and photoconductive member. Detached toner from the toner cloud develops the latent image.
Patent CA-2026412-A1 (CA)
Title: Solid state disk drive emulation
Inventor: COLE JAMES F
IPC: G06F9/46
Filed: 1990-09-27
Abstract: SOLID STATE DISK DRIVE EMULATION                  ABSTRACT OF THE DISCLOSURE         A system for causing a computer solid state memory to emulate a magnetic disk mounted in a disk drive.  In the preferred embodments, the system includes two removable RAM cards and two ROM's.  Program instructions encoded in firmware in the system BIOS translate disk service requests from software running on the computer into appropriate commands and addresses on the RAM cards or on the ROM. The system permits software written for use with floppy disks to be used with solid state memory devices such as RAM cards or ROM without modification of the software.
Patent CA-2027537-A1 (CA)
Title: Screw cap made of plastics material
Inventor: BARTL FRANZ T
IPC: B65D41/04
Filed: 1990-03-09
Abstract: Abstract The screw cap (1) possesses an internal thread (4), on the cap base (21 orientated end (7) of which a brake element (5) is arranged, which lies in the helical line of the external thread (9). The start (10) of the external thread overrides this brake element when the cap is screwed on, whereby a braking effect and a imitation of the screwing movement will ensue. (Figure 2).
Patent CA-2027642-A1 (CA)
Title: Blading for reaction turbine blade row
Inventor: TRAN MANK H
IPC: F01D5/14
Filed: 1990-10-15
Abstract: ABSTRACT OF THE DISCLOSURE           55,300 A blade for a steam turbine has a concave, pressure-side surface which has a constant radius of curvature, while the convex, suction-side surface has a continuously increasing radius  curvature.    The  constantly  increasing radius  of curvature allows fluid to accelerate and thus ensure a small boundary layer thickness.  The center gravity of the blade tenon is located above the center gravity of the airfoil and will reduce the steam bending stress applied at the base of the airfoil as well as at the root of the rotor blade.
Patent CA-2028453-A1 (CA)
Title: Dc/dc converter switching at zero voltage
Inventor: BASSETT JOHN A
IPC: H02M3/335
Filed: 1990-10-24
Abstract: DC/DC CONVERTER SWITCHING AT ZERO VOLTAGE   John A. Bassett ABSTRACT     A two switch, DC/DC converter provides sufficient inductive energy storage at the termination of the "on" period of each switch to alter the charge on the intrinsic and stray capacitance of the combination of switches producing zero voltage across the alternate switch prior to its turn on.  A short dead-band between the turn on pulses provided by the control circuit allows time for this transition.  Thus the energy stored in the capacitance of the switches is returned to the source and load rather than being dissipated in the switching devices.  This greatly improves the efficiency of the converter particularly when operating at high frequency. The unique topology of the converter provides other new and useful characteristics in addition to zero voltage switching capability such as operation at constant frequency with pulse-width-modulation for regulation, quasi-square wave output current, and the ability to integrate the magnetic elements with or without coupling.
Patent CA-2031883-A1 (CA)
Title: Apparatus for the semi-continuous casting of light alloys in water, so constructed as to prevent explosion hazards
Inventor: LAZZARO GIUSEPPE
IPC: B22D30/00
Filed: 1990-12-10
Abstract: "APPARATUS  FOR  THE SEMI-CONTINUOUS CASTING  OF  LIGHT ALLOYS IN WATER, SO CONSTRUCTED AS TO PREVENT EXPLOSION HAZARDS"  ABSTRACT Apparatus  for  casting light alloys in water,  of  the type comprising a cooling water tank (8b) used in order to  cool a die or ingot mould (4) inserted under  tight sealing conditions inside said water tank, and anchored to this latter;  said apparatus uses a water tank which is arranged separate and spaced apart from  the  upper basin  such as to create an air space (18) between said cooling  water  tank and said upper basin,  and  a  die complete  with  its relevant cap  or  sleeve,  inserted inside   said   water  tank   under   tightly  sealing conditions,  and  having  such a length that a  portion (4b)  thereof will protrude above the top plane of  the same  water  tank,  such as to constitute  an  annular, raised  edge,  which is high enough as to  prevent  any possible water leaks between the water tank and the die from  flowing  above said annular edge and  penetrating said  die,  consequently causing explosions and/or  the projection  of  liquid metal jets through  the  casting channel.
Patent CA-2040415-A1 (CA)
Title: Non-irritating soft gas permeable contact lens and process for producing same
Inventor: CHANG SING-HSIUNG
IPC: C08F230/08
Filed: 1990-07-16
Abstract: A clinically-acceptable hydrophilic silicone-based soft gas permeable contact lens produced by subjecting the lens material to extraction with a hydrophilic, polar group-containing, organic solvent followed by replacement of the organic solvent with a physiological saline solution is disclosed.
Patent CA-2041118-A1 (CA)
Title: Apparatus and method for segmenting continuous webs into predetermined lengths
Inventor: REICHENTAL ABRAHAM N
IPC: B65H35/06
Filed: 1991-04-24
Abstract: AN APPARATUS AND METHOD FOR SEGMENTING CONTINUOUS WEBS INTO PREDETERMINED LENGTHS               Abstract Of The Disclosure An apparatus and method for cutting continuous webs having varying thicknesses, widths, and compositions into sheets.  The apparatus includes a pair of oppositely rotating web feed assemblies employing a unique floating nip and clamping mechanism which engages the web and advances it a specified length past a poised cutting blade assembly and onto a simultaneously driven exit assembly.  After the desired length of web has been fed, the drive mechanisms stop, and the cutting blade assembly cycles to clamp the web on the downstream side and cut.  During the cutting stroke the web is held taut on the upstream side by the web feed assemblies.  Upon completion of the clamping and cutting stroke, the cutting blade assembly returns and stops at its poised position.
Patent CA-2042571-A1 (CA)
Title: Phenoxyphenylsulphonyl compounds
Inventor: ANDREE ROLAND
IPC: A01N41/06
Filed: 1991-05-14
Abstract: ABSTRACT OF THE DISCLOSURE       New phenoxyphenylsulphonyl compounds of the formula                  (I) wherein R1, R2, R3, R4, R5, R6, and A are as disclosed herein are useful as herbicides and plant growth regula-tors.  Processes of preparation and intermediates useful therein are also disclosed.            Le A 27 702
Patent CA-2042691-A1 (CA)
Title: Multiplate subculture solid media devices
IPC: C12M1/34
Filed: 1991-05-15
Abstract: A multiplate subculture solid media device is provided with a connection for  internal flow com-munication with a liquid medium culture bottle. The device includes a large transparent screw cap on one face thereof to gain easy access to the plurality of media  plates  for  direct  examination  and  sample taking  through  the  growth  period.   The  cap  may transparent  and  of  a  size  allowing  continuous examination  during  the  growth  period  without any opening.   Alternatively,  the  cap  internal  surface may include the solid media plates so that culture growth  activity may be directly observed by easy removal of the cap.   As a further  feature of  the invention,  the  screw cap may  include  an  integral magnifying lens for enhancing the continuous examin-ation of culture growth.
Patent CA-2043302-A1 (CA)
Inventor: DE BUDA ERIC
IPC: G10G7/02
Filed: 1991-05-27
Abstract: A system for tuning pianos and other string instruments utilizes a clamp-on probe with a feedback loop to induce a controlled vibration of the string at its natural frequency of vibration.  This frequency is electronically compared to an accurate reference frequency.  An associated electronic circuit controls an electric motor driven mechanism which adjusts the string tension until the correct frequency is achieved.
Patent CA-2044935-A1 (CA)
Inventor: TAKENAKA SHINYA
IPC: G06K7/10
Filed: 1991-06-18
Abstract: A bar-code reading apparatus, in which a bar-code is scanned and a processing  for recognizing the bar-code  is performed on the basis of the scanning, comprises scanning signal storage means for storing scanning signals which are obtained by scanning the bar-code and which correspond to bars and/or spaces scanned in at least two times of succeeding scannings,  counting means for counting the number of bars and/or  spaces  scanned  in  each  time  of  the  scannings, number-of-bars storage means for storing count values of the counter means in at least two times of succeeding scannings, first comparison means for comprising the respective count values of the counter means in the two times of scannings stored in the number-of-bars storage means with each other and for generating an enabling signal when the count value in the succeeding scanning is not larger than that in the preceding scanning,  and recognition means responsive to the enabling signal to operate to read one of the two scanning signals corresponding to the two times of scannings and stored in the scanning  signal  storage  means,  the  one  scanning  signal corresponding to the preceding scanning, thereby performing a processing for recognizing the bar-code.
Patent CA-2046267-A1 (CA)
Title: Pop saver
Inventor: PARTINGTON ROBERT A
IPC: B65D47/08
Filed: 1991-07-04
Abstract: SPECIFICATION            Abstract The cap is made from rubber or plastic material which has elastic properties.  The sizes and configuration are determined by each type of container, thus providing a liquid and air seal.  (See Fig. 1, Fig. 2, and Fig. 3 which illustrate three examples, but are not limited thereto.)  The cap in-corporates a special valve.  This joystick valve provides ac-cess to the contents through a spout, vent lever (joystick), in the "open" position (see Fig. 4).  When the valve is in the "closed" position, the contents will be trapped within the vessel (see Fig. 5).  The valve is of a ball or disc con-struction.  The ball or disc is an integral part of the joy-stick, which also incorporates means of closing the vent. Both seat and vent are part of the cap.
Patent CA-2051117-A1 (CA)
Title: Catalytic destruction of organohalogen compounds
Inventor: LESTER GEORGE R
IPC: B01D53/34
Filed: 1990-04-30
Abstract: This application relates to a catalyst and a process using this catalyst to convert or destroy organic compounds including organohalogen compounds. A preferred catalyst contains as catalytic components titania, vanadium oxide, tungsten oxide, tin oxide and at least one noble metal selected from the group consisting of platinum, palladium and rhodium, characterized in that the vanadium oxide, tungsten oxide and noble metals are uniformly dispersed on the titania. The process of this invention comprises contacting the gas stream, which contains organohalogen compounds and other organic compounds, at a temperature of about 200 to about 500 DEG C with the catalyst described above in the presence of an oxidizing agent and water. The oxidizing agent can be oxygen or air.