baber/WOPTO huggingface dataset:
Patent CA-2016516-A1 (CA)
Inventor: YAMAGUCHI SEIJI
IPC: A47L9/28
Filed: 1990-05-10
Abstract: A vacuum cleaner comprises: a blower motor; a dust detector responsive to a dust particle sucked due to rotation of the blower motor for producing a dust detecting signal when detecting each of dust particles passing a portion in a sucking passage of the dust; counter responsive to the dust detection signal for counting the number of the dust particles for a given interval; and input power controller responsive to an output signal of the counter for controlling input power of the blower motor by selecting an input power value from plural preset input power values in accordance with the number. Controlling input power may be performed in accordance with pulse width indicative of dust particle size or the counted number may be modified by pulse width. Another vacuum cleaner further comprises plural light emitting diodes for indicating the number counted to show an operator uncleanness of the floor.      The controller comprises a microprocessor which can control a thyristor provided in series with the blower motor directly. However, in a vacuum cleaner where the thyristor locates in the housing, on the other hand, the microprocessor locates in a handle portion, a D/A converter and a phase control circuit may be provided in the housing.
Patent CA-2016941-A1 (CA)
Title: Optical indicator, particularly for industrial use
Inventor: GARNERONE ALBERTO
IPC: G08B5/36
Filed: 1990-05-16
Abstract: ABSTRACT OF THE DISCLOSURE            An optical indicator for industrial use comprises an elongate  hollow  casing  with  at  least two partially transparent  longitudinal  bands  and  houses  a  support structure carrying at least two bulbs in correspondence with the bands and connected to electrical terminals at one  end  of  the  support  structure.   At  least  one electrical connector is coupled to the said end of the bulb-holder structure and is fixed in a first end of the casing.  The bulb-holder structure is mounted in the casing so as to be removable through a second, open end of the casing and a closure member is fixed to the end  of  the  structure  opposite  the  connector.   The closure member is adapted to be coupled to the second end of the casing with mutual lateral covering over a predetermined  axial  length  such  that,  when  the bulb-holder structure is removed from the casing, it is disconnected  from  the  connector  before  the  closure member is disconnected from the casing to an extent sufficient to  allow  access  to  the  interior of  the casing.          FIG. 1
Patent CA-2017516-A1 (CA)
Inventor: ANDERSON DOUGLAS G
IPC: A01M1/14
Filed: 1990-05-24
Abstract: A controlled release system for volatile liquid insect  attractant   compositions  can  be  formed   from  a container (12)  having an aperture (18) closed  by  a  membrane (20), wherein the  dimensions of  the container (12), the dimensions  of  the aperture (18),  the  nature  of  the membrane (20), the liquid (24) level, and vapor space (26) within the container (12) are conformed to produce an effective attractant release rate.
Patent CA-2018609-A1 (CA)
Title: Metastable silane hydrolyzates and process for their preparation
Inventor: WEISS KEITH D
IPC: C08G77/16
Filed: 1990-06-08
Abstract: METASTABLE SILANE HYDROLYZATES AND    PROCESS FOR THEIR PREPARATION                             Abstract The present invention provides a relatively simple synthesis procedure for the formation of silane hydrolyzate compositions of the formula   where R is hydrogen or a methyl group, n is an integer greater than about 8 and x is a number between 0 and 2.  The hydrolyzate compositions are metastable in solvent solution, but become insoluble after coating on a substrate.  The resins are useful as planarizing coatings for substrates such as electronic devices and can be ceramified by subjecting them to an oxidizing atmosphere at a temperature of between about 100 to 1000°C. to form ceramic or ceramic-like coatings on such substrates.
Patent CA-2021229-A1 (CA)
Title: High purity silica and method for producing high purity silica
Inventor: MOCHIZUKI TADASHI
IPC: C01B33/193
Filed: 1990-07-16
Abstract: ABSTRACT OF THE DISCLOSURE A  method  for  producing  high   purity  silica comprises  reacting  alkali  silicate with mineral acid, the alkali silicate having concentration of  1 to 5 wt.% in  terms  of  SiO2  concentrastion and the mineral acid having concentration of 15 to 40 wt.%.    High purity silica consists essentially of 0.1  ppb of U and Th or less by weight, respectively, and 1 ppm or less of Fe, A?, Ti, Na and K by weight, respectively.
Patent CA-2021285-A1 (CA)
Inventor: YOKOKAWA SAKAE
IPC: H05K3/46
Filed: 1990-07-16
Abstract: ABSTRACT OF THE DISCLOSURE A ceramic multilayer wiring substrate having a stack of a plurality of ceramic sheets each being formed with through holes which are connected to one another by a conductive paste buried in said through holes. Among the ceramic sheets, those which constitute an intermediate layer portion each is formed with a plurality of parallel through holes which are spaced apart in the direction perpendicular to the direction of thickness of the ceramic sheet. With such through holes, the substrate reduces the resistance in the intermediate layer portion and, therefore, the conduction resistance of the entire through holes.
Patent CA-2022310-A1 (CA)
Inventor: MOSELEY ROBIN C
IPC: H01C10/36
Filed: 1990-07-25
Abstract: ABSTRACT OF THE DISCLOSURE VARIABLE IMPEDANCE DEVICE AND CIRCUIT     FOR SENSING ADJUSTMENT THEREOF A circuit and apparatus for sensing the adjustment of a variable impedance device includes an elongated switching element having an alternating series of conductive and non-conductive areas.  The conductive areas are electrically connected.  As the device is adjusted, a wiper alternately operates the switch between open and closed states.  A circuit detects the switch-state change and provides a signal which indicates that the device is being adjusted. The signal can, in turn, determine the output of a dimming circuit, a wireless transmitter, etc., or can determine whether power is provided to a microprocessor or the like. In another embodiment of the invention, a variable impedance device includes an end-of-travel return mechanism.
Patent CA-2023491-A1 (CA)
Inventor: BURNS WILLIAM
IPC: H02K15/02
Filed: 1990-08-17
Abstract: Complementary laminations for a stator pole assembly and a cooperating rotor pole assembly of an electric motor or generator are produced simultaneously from a plate of magnetic material. The plate is stamped to produce an outer peripheral edge corresponding in shape to the exterior of an annular stator yoke and to produce a central aperture shaped to be received by an indexing element of an indexing table. The plate is then repeatedly indexed about its centre point in equal angular increments and a punch is displaced in areciprocating rectilinear fashion synchronized with the indexing to punch a multiplicity of identical apertures equally-spaced circumferentially. The apertures are shaped to define internal edge surfaces in the plate correspondingin shape to radially inner surfaces of the stator yoke and to radially outer surfaces of a central hub of the rotor pole assembly and to define a multiplicity of identical radial webs. The multiplicity of webs is cut with a circular punch such that the plate is divided into a stator pole assembly lamination with radially-inward projections corresponding in shape to stator poles and a rotor pole assembly lamination with radially-outward projections corresponding in shape to rotor poles.
Patent CA-2023664-A1 (CA)
Inventor: LAMM KLAUS P
IPC: B31B17/00
Filed: 1990-08-21
Abstract: A carton (11) with parallel flat front and rear surfaces joined by curved sides and a flip-top lid (10) hinged to the carton.  The carton is composed of two superimposed layers adhesively secured at a joint line at lapped edges.   The outer layer is slit along its front surface parallel to the carton ends and along upwardly extending curves around the sides to a fold line parallel to and raised above the front slit and the inner layer (12) has a cutout in its front surface above the front slit of the outer layer.  The cutout curves upwardly short of the sides where tags (13) are cut out of the sides of the inner layer and the outer layer overlaps the inner layer at the carton ends.  Top and bottom closures are adhesively secured to the outer layer at the ends of the carton.
Patent CA-2027919-A1 (CA)
Title: Drill stem arrangement and method
Inventor: MCNEELY BRANCH M JR
IPC: E21B17/00
Filed: 1990-10-18
Abstract: DRILL STEM MEMBER, ARRANGEMENT AND METHOD                    Abstract of the Disclosure A member (M) provides a preferred combination of reduced weight with increased resistance to buckling under compressive loading and includes a tubular member (10) with tool joints (TJ) at each end for connection to form a drill stem. The tubular member (10) further includes a first portion or pipe section (15) adjacent either one of the tool joints (TJ)and may include a second portion or pipe section (15') adjacent the other tool joint (TJ) which are of smaller or reduced diameter than the adjacent tool joint. An enlarged portion (20) extends longitudinally of the tubular member from adjacent the first portion to adjacent the second portion where there is a second portion adjacent the other tool joint. If there is only one first portion adjacent one tool joint, the enlarged diameter extends from adjacent such first portion to the tool joint at the other end of the tubular member. The enlarged portion (20) has a larger inner and outer diameter than the adjacent first portion.
Patent CA-2028563-A1 (CA)
Title: Continuous to intermittent feeding interface
Inventor: MOSSE RICHARD W E
IPC: B31B50/76
Filed: 1990-10-25
Abstract: Apparatus for feeding items (10) such as flattened carton blanks from a magazine (12) for subsequent handling and treatment, comprises a transfer turret (16) mounted for continuous rotation adjacent the mouth (14) of the magazine, transfer stations (50) on the turret positioned to pass the mouth of the magazine and comprising means (6, 54, 56) for removing a said item (10) from the mouth of the magazine (12), erecting the item if it is a blank, and for carrying the said item as the turret rotates, an endless pocket conveyor (30), for receiving said items from said turret, positioned adjacent said turret so as to be passed by the or each said transfer station as the turret rotates so as to produce a sequence of transfer station/conveyor interactions, and a globoidal cam indexing box (37) for driving said conveyor around an endless path in an intermittent motion in which said conveyor is halted for a period and is restarted in motion during intervals between at least selected sequential ones of said transfer station/conveyor interactions such that the distance travelled by the conveyor during decelerating to a stop and accelerating back to normal running speed is equal to the length of one pocket (32) on the conveyor.
Patent CA-2029389-A1 (CA)
Title: Elastomeric disc for use on a pipeline pig
Inventor: CHO HYUN J
IPC: B08B9/04
Filed: 1990-11-06
Abstract: An elastomeric disc for use on a pipeline pig of the type having a longitudinal body supported centrally within a pipeline for movement by fluid flow therethrough, the disc being in the form of a unitary elastomeric member having an outer peripheral surface concentric with the pipeline pig body longitudinal axis and having an inner portion of selected thickness with means for attachment to the pipeline pig body whereby the disc is supported in a plane perpendicular the pipeline line axis, the disc member having an integrally formed circumferential outer portion, the outer portion being of increased thickness in relation to the spacing thereof from the disc center, the outer peripheral surface being defined by first and second intersecting frustraconical surfaces, one of the surfaces being parallel to the inner wall of the pipeline through which the disc is moved in a first direction and the other of the surfaces being parallel so the inner wall of the pipeline when the disc is moved in a second direction.
Patent CA-2029630-A1 (CA)
Title: Jack assembly
Inventor: CRUISE THOMAS W
IPC: H01R24/58
Filed: 1990-11-09
Abstract: ABSTRACT OF THE DISCLOSURE A telephone jack assembly is disclosed having a frame and a plurality of spring contacts.  The plurality of spring contacts include tip and ring contacts and normal spring contacts.  The normal spring contacts include body portions and offset portions which are generally parallel to and spaced from one another.  The spring contacts and normal spring contacts are carried on said frame for the offset portions of the normal contacts to oppose and abut the spring contacts in their rest positions.
Patent CA-2029786-A1 (CA)
Title: Olefin polymerization catalysts
Inventor: VILLENA ALAN
IPC: C08F4/60
Filed: 1990-11-14
Abstract: ABSTRACT           A process for preparing an olefin polymerization catalyst which comprises halogenating a magnesium-di-(3-halo-or 3-C1 to C8 alkoxy-phenoxide) with a halide of tetravalent titanium in the presence of a halohydrocarbon, recovering the solid reaction product from the reaction mixture and combining the solid reaction product with an organo aluminium compound and an electron donor.
Patent CA-2031924-A1 (CA)
Title: Load securement assembly
Inventor: KRAUSE THEODORE
IPC: B60P7/08
Filed: 1990-12-10
Abstract: A load securement assembly is provided and consists of a pair of brackets which are each mounted into an E-track belt rail on an opposite side wall of a trailer so as to accept a beam therebetween to hold articles in place during transportation in a railroad environment.
Patent CA-2033043-A1 (CA)
Title: Safening mixtures of sulfonylurea and acetanilide herbicides
Inventor: BUSSLER BRETT H
IPC: C07D417/04
Filed: 1990-12-21
Abstract: 09-21(2768)A SAFENING MIXTURES OF SULFONYLUREA    AND ACETANILIDE HERBICIDES                 Abstract of the Disclosure The disclosure herein relates to safening crops from injury by herbicidal mixtures of sulfonyl-urea and acetanilide herbicides by means of 5-hetero-cyclyl-substituted dichloroacetamide antidotes.
Patent CA-2033919-A1 (CA)
Title: Crate for a fuel boiler
Inventor: DETHIER LOUIS
IPC: F23H11/00
Filed: 1991-01-10
Abstract: Abstract of the Disclosure A grate for a fuel boiler, consisting of plates arranged stepwise or in a cascading fashion, with at least two fixed plates and a movable plate disposed between the two fixed plates. The movable plate is capable of reciprocating to and fro and is provided with an appropriate drive. Combustion air passes through the interspace between the movable and fixed plates and allows  for controlled and complete combustion of the fuel. The fixed plates are  fastened to a  common  first  holder and the movable plates  are fastened  to a  common second holder.  The  fastening  of  each  plate  to  its individual holder is vertically-adjustable.  Prefer-ably, the air utilized for combustion of the fuel is only that which has passed through, and preferably been  drawn  through,  the  interspace  between  the movable and fixed plates.
Patent CA-2034703-A1 (CA)
Inventor: NISHIGUCHI MASANORI
IPC: H05K1/00
Filed: 1991-01-22
Abstract: Abstract of the Disclosure A substrate for packaging a semiconductor device having a bump thereon according to the present invention is characterized by that the substrate has an electrode terminal to which the bump is to be connected, and a recess for receiving at least a top of the bump is formed in the electrode terminal.
Patent CA-2034779-A1 (CA)
Title: Ski boot and ski boot-binding
Inventor: WULF ELMER B
IPC: A63C9/086
Filed: 1991-01-23
Abstract: SKI BOOT AND SKI BOOT-BINDING                          Abstract of the Disclosure A ski boot and a ski boot incorporating a releasable ski binding which attaches the boot to a ski. The boot-binding includes a first connecting portion secured to the ski, a second connecting portion secured to the boot, a plunger combination for releasably coupling the first and second connecting portions so that the boot may release in any direction, and an actuation device engaging the plunger combination for maintaining coupling of the first and second coupling portions. The actuation device has a pivotal lever arm mounted for withdrawing one of the plungers and an arm stay secured to the ski boot for releasably retaining the pivotal lever arm. The ski boot includes a living hinge in the sole to facilitate walking in the boot, and the hinge may be locked to inhibit the hinging function. The boot extends well above the ankle and is stiffened on the inside or outside to securely mount the arm stay. For retaining a foot in place, the boot includes a foot-enveloping foot positioning device which surrounds the arch and instep of a foot inside the ski boot when the boot is worn. The foot positioning device is adjustable to both fit the foot and also hold the foot at the heel of the boot.
Patent CA-2035650-A1 (CA)
Title: Process of preparing polymer or copolymer of unsaturated carboxylic acid ester
Inventor: YASUDA HAJIME
IPC: C08F20/12
Filed: 1991-02-04
Abstract: A process for preparing a polymer of an unsaturated carboxylic acid ester (e.g., acrylate or methacrylate) or a copolymer thereof with an .alpha.-olefin (e.g., ethylene) by using, as an initiator, at least one organometallic compound of the group consisting of (a) trivalent organic Sc compounds, (b) trivalent organic Y compounds, and (c) trivalent organic lanthanide (La, Ce, Pr, Nd, Pm, Sm, Eu, Ga, Tb, Dy, Ho, Er, Tm, Yb, Lu) compounds, or a combination thereof with an organoaluminum compound.
Patent CA-2038709-A1 (CA)
Title: Poster frame
Inventor: POLLACK RONALD M
IPC: G09F15/00
Filed: 1991-03-20
Abstract: There is provided a frame for a poster and the like, includes at least one edge support for an edge of the poster, having an inverted generally T-shaped back plate having a base leg and an upstanding leg disposed generally normally to the base leg and having a first end interconnected, generally centrally of the base leg and a second end. The edge support also has a generally C-shaped dome member having a center section interconnected with the second end of the upstanding leg of the back plate and two curved legs, each of which extend toward opposite ends of the base lag of the base plate to define a gap between the ends of the curved legs and the base leg for the purpose of receiving the respective edge of the poster. The frame also includes at least one fastening element associated with the edge support for fastening the poster edge thereto having first and second legs and being substantially C-shaped to overlay the C-shaped member of the edge support and engage therewith with a snap fit. The legs of the fastening element extend beyond the ends of the curved legs of the C-shaped dome member and toward the base leg of the back plate, to press the poster edge against the base leg to thereby fasten the same. A double-sided poster frame is also disclosed.
Patent CA-2040831-A1 (CA)
Title: Insulated panel siding
Inventor: KELLIS WARREN DALE
IPC: E04B2/00
Filed: 1991-04-19
Abstract: ABSTRACT OF THE DISCLOSURE           Panel siding for the wall of a building comprising elongated panels arranged in close, parallel relationship with the longitudinal edges of adjacent panels opposed to one another The panels have integral tongue and groove formations along the opposed longitudinal edges which are interengaged to provide connections between panels.  A layer of insulation is provided at the rear of each panel, providing a panel insulation unit. Each panel insulation unit is installed in a single step.
Patent CA-2041256-A1 (CA)
Title: Catalyst compositions
Inventor: KEIJSPER JOHANNES JACOBUS
IPC: C08G67/00
Filed: 1991-04-25
Abstract: A B S T R A C T                  CATALYST COMPOSITIONS      Catalyst compositions, which contain a Group VIII metal and a bisphosphine with the general formula (R2)2P-R3-P(R2)2 in which R2 represents an aryl group containing at least one alkoxy substituent at the ortho position relative to the phosphorus atom to which the aryl group is linked and in which R3 is a divalent bridge group containing just three carbon atoms in the bridge, of which the central carbon atom forms part of a -CHR4- group in which R4 represents a monovalent substituent comprising carbon, hydrogen and optionally oxygen.     They are suitable for the preparation of copolymers of carbon monoxide and olefinically unsaturated compounds.
Patent CA-2042753-A1 (CA)
Inventor: ERICSON RICHARD J
IPC: B66B5/04
Filed: 1991-05-16
Abstract: A safety braking disk is secured to rope drive sheave. First and second safety brake assemblies each operate on opposing parallel sides of the disk. Brake pads are resiliently placed into engagement upon initiation of the safety.      The safety is initiated upon car overspeed, movement with open car doors, or excess velocity in the levelling zone.
Patent CA-2043725-A1 (CA)
Inventor: GARNEAU LOUIS
IPC: A42B3/08
Filed: 1991-05-31
Abstract: The safety helmet comprises hard inner and outer shells and a shock-absorbent insert.  The inner shell forms at its lower edge  and  on  the  outside thereof an upwardly-opening trough in which the insert is inserted. The free edge  of the  trough joins with the  lower edge  of the  cuter shell above the bottom of the trough.    The  two  shells,  together  with  the   insert,  form ventilation  openings  which  are  lined  by  portions of the two shells.
Patent CA-2046541-A1 (CA)
Title: Methods and apparatus for disarming and arming explosive detonators
Inventor: CARISELLA JAMES V
IPC: F42C15/36
Filed: 1991-07-09
Abstract: ABSTRACT OF THE DISCLOSURE             In the representative embodiments of the several methods and apparatus of the invention, a barrier formed of a low-temperature fusible metal alloy having a selected melting point is arranged between the donor and receptor explosives in an otherwise-typical detonator for reliably blocking the transmission of detonation forces from the donor explosive to the receptor explosive until the donor has been subjected to well bore temperatures which are greater than the melting point of the fusible alloy. By selecting a fusible metal alloy which has a melting point less than the known temperatures of the well bore fluids, when the tool is exposed to those elevated temperatures, the barrier will be predictably transformed to its liquid state thereby allowing the liquid alloy to flow to a non-blocking position away from the detonation path of the donor explosive. In an alternative manner of carrying out the new and improved methods and apparatus of the invention, means are provided to return the fluent fusible metal alloy to its initial detonation-blocking position between the explosives so that the fusible metal alloy will again provide an effective barrier for reliably preventing the detonation of the receptor explosive as the well tool is subsequently recovered from the well bore.
Patent CA-2048956-A1 (CA)
Title: Bacteriophage lambda pl promoters
Inventor: BELAGAJI RAMA M
IPC: C07K14/61
Filed: 1991-08-12
Abstract: Abstract The present invention concerns novel DNA compounds which function as transcriptional activating sequences.  Recombinant DNA expression vectors which contain the transcriptional activating sequences and host cells transformed with these expression vectors are also provided.  When properly positioned in an expression vector, the novel transcriptional activating sequences enable regulatable expression of an operably linked gene and enhance the structural stability of the expression vector.