baber/WOPTO huggingface dataset:
Patent CA-2092804-A1 (CA)
Title: Double piston propulsion unit
Inventor: CLARK ROBERT O
IPC: F41A/
Filed: 1991-09-26
Abstract: A double piston propulsion unit for a recoilless mass/countermass projectile launcher comprises two hollow cylindrical pistons (22, 23) arranged in a back-to-back relationship with closed outer ends and open inner ends, the open inner ends being joined together by a circumferential rupturable connecting means so that the pistons form a vessel in which a propellant charge (34) is enclosed. In operation, the unit is slideably located inside the open-ende launch tube (1) of the projectile launcher at its mid-point. The propellant when initiated causes a build up of propellant gases inside the vessel and when the gas pressure reaches a pre-determined value the connecting means fails in tension and the pistons (22, 23) are propelled in opposite directions. The tensile and compressive force experienced by the pistons (22, 23) during the firing of the unit are substantially decreased compared to known units, so that relatively lightweight pistons (22, 23) can be employed.
Patent CA-2093301-A1 (CA)
Title: Gas mixtures for excimer lasers
Inventor: GABZDYL JACEK T
IPC: C01B23/00
Filed: 1993-04-02
Abstract: ABSTRACT   A rare gas-halide excimer laser uses a buffer gas consisting of from 5 to 50% by volume helium the balance being neon.
Patent CA-2094765-A1 (CA)
Title: Achromatic overclad fiber optic coupler
Inventor: WEIDMAN DAVID L
IPC: G02B6/28
Filed: 1993-04-23
Abstract: Abstract of the Disclosure An achromatic fiber optic coupler of the type wherein a plurality of single-mode optical fibers, each having a core and a cladding, are fused together along a portion of the lengths thereof to form a coupling region.  The propagation constants of the fibers are preferably equal; however if the fiber claddings have different refractive indices, the lowest cladding refractive index is n2.  A matrix glass body of refractive index n3 surrounds the coupling region, n3 being lower than n2 by such an amount that the value of .DELTA.2-3 is less than 0.125%, wherein .DELTA.2-3 equals (n22-n32)/2n22.
Patent CA-2098490-A1 (CA)
Title: Pet access door frame modular unit
Inventor: DAVLANTES GEORGE N
IPC: E05C9/00
Filed: 1992-10-14
Abstract: A modular pet access door unit (10) for insertion into a hole cut into a door or wall has exterior frames ( 12, 14) and spacer frames ( 16), fastened together by fasteners (69) extending horizontally through brackets (66) in the spacer frames (16). The spacer frames (16) have tongue (74) and groove (76) surfaces for nesting with each other. Both exterior frames (12, 14) may carry a pet access door (18). A security cover (86) mounts on posts (28a) with annular grooves, and may be moved horizontally into position to cover the pet opening, where sliders (92) in the security cover (86) with keyhole-shaped holes (96) engage the post annular grooves (88). The pet door (18) is captured in the frame and a door or flap holder (34) that is secured to the frame by removably fasteners (48). An automatically adjustable sill (54) is movable by magnetic attraction to the flap bottom, where its position is secured by fasteners (58).
Patent CA-2100318-A1 (CA)
Title: Direct sequence spread spectrum direction finder
Inventor: FRY ROBERT J
IPC: G01S3/46
Filed: 1993-07-12
Abstract: ABSTRACT        A direction finding apparatus for detecting and locating transmitters of direct sequence spread spectrum signals has two antenna spaced apart horizontally which are connected to a tuner that is under the control of a microcomputer.  The tuner bandpass filters signals in separate channels for each antenna, amplifies and converts those signals to an intermediate frequency.  That intermediate frequency signal in each channel is applied to a nonlinear device to produce discrete spectral components which are applied to a bandpass filter in order to isolate a discrete spectral component in one channel and a similar component in the other channel.  Each selected discrete spectral component is then digitized in A/D converters and applied to the microcomputer which determines the frequency of the spectral component and the phase difference between channels.  The microcomputer can then determine an angle-of-arrival of a received signal, with respect to a baseline between the antenna, from that phase difference, the frequency and the known spacing between the antenna.
Patent CA-2103308-A1 (CA)
Title: Flat glass furnaces
Inventor: QUIRK RICHARD
IPC: C03B5/04
Filed: 1993-11-17
Abstract: A method of operating a cross-fired regenerative glass furnace for melting flat glass so as to minimise emission of NOx in waste gases leaving the furnace, the furnace having sealed regenerators which act as heat exchangers, the method comprising supplying fuel in excess of that required for stoichiometric combustion to ensure that glass of the required quality at the required production rate is obtained, and that the waste gases leaving the furnace through the regenerators contain combustible material, and reacting said combustible material with sufficient air to ensure that the waste gases exiting to atmosphere contain permissible levels of combustible material and permissible levels of NOx. Alternatively, the furnace may be operated at substantially stoichiometric conditions and fuel is supplied to the waste gases as they leave the melting chamber. The invention also relates to a cross-fired regenerator glass furnace for use in the method. The invention further provides a method of reducing the emissions of CO in waste gases leaving a cross-fired regenerative glass furnace for melting flat glass, the furnace having sealed regenerators which act as heat exchangers. the method comprising removing CO from the waste gases in the regenerator by combusting CO in around 8% excess air, based on the combustion air for the supplied fuel, at a temperature greater than 650°C.
Patent CA-2105440-A1 (CA)
Title: Apparatus for processing photosensitive material
Inventor: MULLER BRUCE R
IPC: G03D3/08
Filed: 1993-09-02
Abstract: APPARATUS FOR PROCESSING PHOTOSENSITIVE MATERIAL                   ABSTRACT           An improvement in an apparatus for processing photosensitive materials.  The apparatus includes a processing chamber through which the material can be advanced for processing the material.  The processing chamber has an entrance at one end and an exit at the other end to allow the photosensitive material to travel through the chamber.  The apparatus further includes a tank for holding a processing fluid.  At least one nozzle assembly is provided for supplying processing fluid from the tank to the processing chamber.  The nozzle assembly comprises an outer nozzle secured to the tank and an inner nozzle secured to the upper tank.  The inner and outer nozzles are spaced apart a predetermined distance so as to form a discharge opening therebetween which is in fluid communication with the processing fluid in the tank so as to create a first fluid layer on one side of the photosensitive material passing through the processing chamber.  The inner and outer nozzles have a configuration designed to maintain the predetermined distance between the inner and outer nozzles substantially constant along the length of the discharge opening.
Patent CA-2105694-A1 (CA)
Title: Organic transition metal complex
Inventor: YAMADA SATORU
IPC: C08F4/46
Filed: 1993-09-08
Abstract: Abstract of the Disclosure:         An organometal complex is provided which is represented by the general formula (1) below:                              (1) wherein Cp1 and Cp2 are respectively a substituted or unsubstituted cyclopentadienyl group; R1 is a group selected from alkylene groups or arylalkylene groups having 1 to 20 carbons, dialkylsilylene groups, dialkylgermanylene groups, alkylphosphinediyl groups, or alkylimino groups, and R1 crosslinking Cp1 and Cp2 together  m is 0 or 1; M is selected from titanium, zirconium, and hafnium; R2, R3, and R4 are independently hydrogen, a hydrocarbon group of 1 to 12 carbons, an alkoxyl group, or an aryloxy group; and MAO is a methylalumoxane group.  This organometal complex is capable of producing selectively an olefin polymer without use of any other additional catalyst component.
Patent CA-2106543-A1 (CA)
Title: Tv table
Inventor: CAUFFIEL FORD B
IPC: A47B23/04
Filed: 1993-09-20
Abstract: ABSTRACT OF THE DISCLOSURE      A TV table assembly for use with a chair has a base plate of a sufficient size to fit under a front leg and a back leg on one side of the chair.  A lower sleeve is affixed to and extends upwardly from a forward portion of the base plate. A post has a lower end removably received in the sleeve.  A table has a first U-shaped bracket extending downwardly from a lower surface thereof near one end.  A second U-shaped bracket has upwardly-extending flanges positioned adjacent the downwardly-extending ones.  An upper sleeve is affixed to the second bracket and extends downwardly to removably receive an upper end of the post. A threaded connector extends through both sets of flanges to hold the table in a fixed position relative to a horizontal plane, when tightened.  Parallel walls extend upwardly from the base plate and rearwardly of the lower sleeve to serve as a magazine rack.
Patent CA-2110585-A1 (CA)
Title: Therapeutic fragments of von willebrand factor
Inventor: FARB DAVID L
IPC: A61K38/00
Filed: 1992-06-19
Abstract: An aqueous solution of cysteine-altered von Willebrand Factor fragment which is substantially free of aggregate and capable of therapeutic use for treating thrombosis and a process for preparing such a solution comprising: (A) providing an aqueous solution of the fragment and denaturant; (13) purifying the solution of fragment and denaturant under conditions which promote conversion of aggregated forms of the fragment to the dimeric and/or monomeric forms thereof to provide purified fragment; (C) separating the dissolved; purified fragment from the denaturant while maintaining the aqueous solution of the fragment at a pH of about 2.5 to less than about 5.5 to increase monomerization of, and decrease aggregation of, said purified fragment, thereby forming an aqueous solution of fragment which is substantially free of aggregate.
Patent CA-2112440-A1 (CA)
Title: Method of forming a multi-layer plastic pipe for conducting fluids, a multi-layer plastic pipe formed by the method, and a method of connecting a multi-layer plastic pipe
Inventor: JARVENKYLA JYRI
IPC: B29C48/09
Filed: 1993-12-24
Abstract: Abstract A method of forming a multi-layer plastic pipe (4) for conducting fluids, a multi-layer plastic pipe formed by the method, and a method of connecting a multi-layer plastic pipe. According to the invention, a core pipe (2) is formed, whose properties correspond to the re-quirements set by the fluid to be conducted. With a suitable coating method an outer protective layer (3) is formed around the core pipe (2) of such a plastic material, which properties meet the requirements set by the prevailing environment and/or pipelaying procedure.
Patent CA-2115227-A1 (CA)
Title: Downrigger wire electrical potential controlling apparatus and method
Inventor: SCOTT BLAYNEY J
IPC: A01K91/08
Filed: 1994-02-08
Abstract: The invention is for controlling electrical potential of a downrigger wire line as used in downrigger fishing. The apparatus has a conducting member with an opening to receive the downrigger wire line to permit the wire line to pass freely therethrough. The conducting member has at least a contact portion which is electrically conducting and which contacts the downrigger wire line to provide electrical contact therewith. The contact portion is electrically connectable to an electrical voltage source to provide an electrical potential to the downrigger wire line. A main electrical conductor connected to the contact portion is also preferably connected to a portion of the downrigger so as to partially locate the conducting member which is also partially supported on the downrigger wire line. Preferably, the conducting member is a sleeve which at least partially encloses the downrigger wire line. Thus, an accurately controlled electrical potential is transferred directly into the wire line, without passing through intermediate portions of the downrigger apparatus. This permits control of electrical potential of a downrigger wire line of a recreational downrigger, in which the wire line is commonly wound on an insulating plastic reel or spool and passes through an insulating plastic pulley at an end of the downrigger arm.
Patent CA-2116925-A1 (CA)
Title: Highly visible, point of impact, firearm target-shatterable face sheet embodiment
Inventor: KANDEL WALTER R
IPC: F41J1/01
Filed: 1994-03-03
Abstract: ABSTRACT OF DISCLOSURE       A  firearm  target  providing  self-enlarging,  highly visible, bullet puncture openings.   The target comprises a backing sheet and a target-marked face sheet comprising an impact shatterable material which shatters on impact by a bullet, enlarging the opening and exposing an enlarged area of the backing sheet.  The face surfaces of the face sheet and backing sheet are of contrasting colors, thereby increasing substantially the visibility of the bullet impact area.      Adhesive, stitching or other holding means holds the face sheet across the backing sheet.
Patent CA-2125595-A1 (CA)
Inventor: WALL JAMES C
IPC: A47L5/38
Filed: 1994-06-10
Abstract: An  automatic  dustpan  apparatus  for  central  vacuum cleaning systems has a hollow body member that is configured for built-in mounting under cabinetry or in walls adjacent a floor surface, and connection to a conventional central vacuum cleaning system whereby debris on a floor surface may simply be swept to the vicinity of the automatic dustpan and hence into the central vacuum cleaning system where it is discarded.          A valve within the dustpan body automatically closes when the dustpan is not in use to permit the other receptacles in the central vacuum cleaning system to function and provision is made to assure against the energizing of the central vacuum cleaning motor when the automatic dustpan is to be used until after the valve of the dustpan has been opened, in order to prevent harmful overloading and other undue damaging strains on the motor during its initial startup and operation.
Patent CA-2127285-A1 (CA)
Title: Web winding apparatus
Inventor: OGREN HARVEY D
IPC: B65H19/29
Filed: 1993-01-20
Abstract: A web winding system (10) for winding adhesive backed web (12) on cores (14) mounted on wind-up spindles (28, 30). The web (12) is supported on a rotating suction drum (24). A knife (32) mounted on a rotating wheel (34) cuts the web (12) against the supporting drum (24). A tab bar (68) is mounted on the wheel (34) adjacent to the knife (32), and applies a tab (60) to the web (12) in registration with the cut. In a second position of the wheel (34) a tab source (70) moves toward the tab bar (68) and applies a tab (60) to its surface (68). The knife (32) is heated by a heater (35) to a temperature above adhesive softening and below adhesive carbonizing to prevent adhesive to stick to or to accumulate on the knife (32). The web (12) is lead to the supporting drum (24) around a stationary gapping roller (18) and a retractable gapping roller (22), mounted on an arm (42) which is pivotable around roller (10). When the knife (32) has cut the web (12) the arm (42) pivots clockwise, and lengthens the distance between retractable roller (22) and supporting drum (24), thus forcing the web to slide on the drum (24), and to form a gap between the leading cut end (36') and the trailing cut end (36) of the web. The gap allows for flying transfer of the web between the cores (14) on the two wind-up spindles (28, 30).
Patent CA-2127749-A1 (CA)
Title: Catalyst for purifying exhaust gas and method for purifying exhaust gas
Inventor: ITOH TAKASHI
IPC: B01J29/068
Filed: 1994-07-11
Abstract: ABSTRACT OF DISCLOSURE            Catalyst for purifying exhaust gas and method for purifying exhaust gas A catalyst for purifying exhaust gas comprising crystalline iridium silicate having a Si/Ir atomic ratio of 50 to 800 and a Si/Al atomic ratio of not less than 15.  The catalyst exhibits excellent activity and selectivity when used for purification of, and specifically for eliminating NOx from, an exhaust gas which contains reducing components including hydrocarbons, oxygen in excess of the stoichiometric quantity necessary for completely oxidizing all of the reducing components, and nitrogen oxides.  The catalyst is highly durable to hydrothermal aging.
Patent CA-2128258-A1 (CA)
Title: Direct laser ignition of linear ignition products
Inventor: LETENDRE GUY R
IPC: B60R21/26
Filed: 1994-07-18
Abstract: DIRECT LASER IGNITION OF LINEAR IGNITION PRODUCTS  ABSTRACT OF THE DISCLOSURE            A device is provided for ignition of a pyrotechnic or hybrid inflator for use in motor vehicles by the input of energy provided by a laser source.   The laser energy is conducted through an optical fibre and an optical window in the inflator housing where the  ignition  of  a  propellant  initiator  is  triggered.    This apparatus eliminates the potential for ignition of the inflator by radio  frequency  energy  or  static  electricity acting  on  the electrical squib which is standardly used to ignite an inflator. This design further simplifies the igniter assembly for use in an inflator.
Patent CA-2128585-A1 (CA)
Title: Pen-scraper
Inventor: WERNER GLENN J
IPC: B43K8/00
Filed: 1994-07-21
Abstract: In this invention a scraper tip is mounted in a pen housing. This allow the user to scrape even the toughest coatings by securely holding the pen barrel and applying force down along it's length onto the scraping edge. The assembly is compact and is also a disposable pen.
Patent CA-2128922-A1 (CA)
Title: Standalone check transaction terminal
Inventor: PRICE JAMES F
IPC: G07F19/00
Filed: 1994-07-27
Abstract: "STANDALONE CHECK TRANSACTION TERMINAL"                      Abstract of the Disciosure A standalone check transaction terminal includes a magnetic ink character recognition (MICR) check reader, a magnetic stripe reader, an embossed data reader, a display, a keypad, and a modem in an integrated stand-alone unit. The terminal is operative for gathering credit card or check data required for customer transactions at the point of sale, and for requesting transaction authorizations from a remote authorization source. The MICR check reader reads checking account data from the bottom of a check. The magnetic reader reads data from credit cards or from driver's licenses having a magnetic stripe. Customer identification information provided in conjunction with a check transaction may be entered using the keypad, or read directly from a driver's license having a magnetic stripe. An embossed data reader reads the embossed characters on a credit card. Once the check or credit card transaction data is collected by the terminal, the terminal calls a remote host computer and transmits an authorization request including the transaction data. Authorization indicia provided by the remote computer is received at the terminal and displayed on the terminal's display. The terminal also includes a plurality of serial communications ports that allow the terminal to be connected to serial point of sale devices such as a receipt printer, signature capture pad, personal identification number (PIN) pad, or other serial devices.
Patent CA-2131864-A1 (CA)
Inventor: FREDERICK EARL
IPC: B01D41/04
Filed: 1994-09-12
Abstract: Method for extracting a waste fluid from a used vehicle filter. A centrifuge includes at least one support for holding the filter in a position such that the filter's aperture is oriented radially outward from the axis of rotation of the centrifuge. A housing includes a vertical wall and surrounds the centrifuge so that as the centrifuge is spun, waste fluid within the filter is caused to exit through the filter's aperture into the housing. The method for extracting waste fluid from a used filter according to the present invention includes the steps of providing a centrifuge capable of receiving a used vehicle filter and rotating the centrifuge to cause fluid to exit through the filter's aperture.
Patent CA-2134029-A1 (CA)
Title: Golf bag with adhesively secured divider panels and adhesively secured tubular body
Inventor: GRETZ JON J
IPC: A63B55/00
Filed: 1994-10-21
Abstract: Abstract of the Disclosure A golf bag includes an elongated tubular body, a base secured to the bottom of the tubular body, and a top cap secured to the top of the tubular body.  The top cap includes divider walls which provide a plurality of club openings, and each divider wall has a channel which opens toward the base.  The top of a divider panel is adhesively secured within each channel, and the bottom of the divider panel is secured to the base.  The tubular body includes a flexible panel which is formed into a tube, and the overlapping edge of the panel are adhesively secured.
Patent CA-2135025-A1 (CA)
Title: Synthesis of trans-1,4-polybutadiene having controlled molecular weight
Inventor: CASTNER KENNETH F
IPC: C08F2/44
Filed: 1994-11-03
Abstract: Trans-1,4-polybutadiene is normally synthesized utilizing transition metal or rare earth catalysts. However, molecular weight control is difficult to achieve with such catalysts and the molecular weight of the polymer produced is frequently much higher than desired.  By utilizing the catalyst system and techniques of this invention, trans-1,4-polybutadiene can be synthesized continuously to a high level of conversion with molecular weight control being possible.  This invention specifically relates to a process for synthesizing trans-1,4-polybutadiene by polymerizing 1,3-butadiene monomer in the presence of a catalyst system which is comprised of an organocobalt compound, an organoaluminum compound and a para-substituted phenol with molecular weight being controlled by conducting the polymerization in the presence of at least one dialkyl sulfoxide, diaryl sulfoxide or dialkaryl sulfoxide.  Such polymerizations can be conducted on a batch or a continuous basis.  In the case of continuous processes, it is normally desirable to conduct the polymerization in the presence of carbon disulfide as a gel inhibitor.
Patent CA-2136955-A1 (CA)
Title: Poly(vinyl ether) aminocarbamates and fuel compositions containing the same
Inventor: CHERPECK RICHARD E
IPC: C10L1/18
Filed: 1994-03-25
Abstract: Poly(vinyl ether) aminocarbamates having formula (I) wherein A is a polyamine moiety having at least one basic nitrogen atom; R1 is a hydrocarbyl group having a sufficient number of carbon atoms to render the poly(vinyl ether) aminocarbamate soluble in hydrocarbons boiling in the gasoline or diesel fuel range; R2 is an alkylene group having 2 to about 8 carbon atoms; R3, R4, R5, R6, R7 and R8 are each independently hydrogen or a lower alkyl group having 1 to about 4 carbon atoms; R9 is an alkyl group having 1 to about 10 carbon atoms; m is 0 or 1; and n is an integer from 5 to 99. The poly(vinyl ether) aminocarbamates of formula (I) are useful as fuel additives for the prevention and control of engine deposits.