baber/WOPTO huggingface dataset:
Patent CA-1278462-C (CA)
Title: Bidirectional pump with diaphragm operated valve for dishwasher
Inventor: JARVIS WILBUR W
IPC: F04D15/00
Filed: 1987-10-13
Granted: 1991-01-02
Abstract: Abstract A bidirectional pump has a chamber in communication both with a drain conduit and a conduit  for delivering washing liquid into a wash chamber.  The drain conduit has a port communicating between the pump chamber and a drain outlet.  An opening communicates between the delivery and drain conduits and is selectively sealed by a deformable diaphragm.  With the pump rotating in a first direction and the liquid being delivered principally through the delivery conduit by the pump, a pressure differential is established across  the  diaphragm  thereby  urging  a  portion  of  the diaphragm sealingly against the port to prevent delivery of washing liquid through the drain conduit as during a rinsing cycle  of  the dishwasher.   Reverse rotation  of the pump reverses the pressure balance to urge the sealing portion of the diaphragm away from the drain port, thereby permitting flow through the drain conduit for suitable disposal of the used washing liquid.
Patent CA-1308580-C (CA)
Inventor: ISOBE KUNIO
IPC: B21J5/00
Filed: 1987-10-28
Granted: 1992-10-13
Abstract: 61-284,265 METHOD OF REDUCING SLAB IN WIDTHWISE DIRECTION     Abstract of the Disclosure A slab is successively fed between periodically moving press tools to reduce in widthwise direction.          In this method, the leading and tail end portions of a given length in the slab are reduced at a reduced width wider than that of remaining steady portion.
Patent CA-1306604-C (CA)
Title: Kit and method for demonstrating carpet cleaning principles
Inventor: LAFONTSEE LAWRENCE J
IPC: G09B19/00
Filed: 1987-11-16
Granted: 1992-08-25
Abstract: Abstract of the Disclosure A kit (10) for visual demonstration of principles relating to carpets and carpet care.  The kit includes a horizontal base member, vertical members (30) removably securable in erect position  with respect to the base member at their proximal ends (32), and means (28) on the base member to hold the vertical members in carrying position when not in their erect positions.  A highly preferred base member is a transparent rigid box (12) with spaced upper and lower walls (22,14), the vertical members being attached to the lower wall and extending loosely through openings (24) in the upper wall.       The method includes applying dirt onto a shaft near its distal end and, when the shaft is erect on the lower wall of the preferred base member, executing a cleaning step.  The cleaning step may involve applying a free liquid, which carries dirt through the opening into the rigid box, or rubbing with a damp wiper and then removing the dirty wiper from a position on top of the rigid box.
Patent CA-1310997-C (CA)
Title: Tete de prehension de produits plats
Inventor: HAROUTEL JEAN-CLAUDE
IPC: B65H29/24
Filed: 1987-12-16
Granted: 1992-12-01
Abstract: Tête de préhension de produits plats. Elle est caractérisée en ce qu'elle comporte une turbine fixée sur l'arbre d'un moteur de turbine et rotative dans un embout monté libre en rotation sur ledit arbre. L'embout définit une première chambre plate ouverte latéralement contenant la turbine et une deuxième chambre plate avant ouverte partiellement sur la première chambre, selon l'axe de ladite turbine, et ouverte sur sa face terminale dite de préhension. Cet embout est orientable sur l'arbre du moteur de turbine. L'invention trouve une application dans la préhension et le transfert de produits plats encombrants.
Patent CA-1294290-C (CA)
Title: Silicon nitride sintered body and process for preparation thereof
Inventor: ARAKAWA TOSHIHIKO
IPC: C04B35/584
Filed: 1988-01-25
Granted: 1992-01-14
Abstract: SILICON NITRIDE SINTERED BODY AND PROCESS                FOR PREPARATION THEREOF                 ABSTRACT OF THE DISCLOSURE      A silicon nitride sintered body comprised of 1.5 to 3.0% by weight of Y2O3 , 0.1 to 1.0% by weight of Al2O3 and 96 to 98.4% by weight of Si3N4 wherein the Y2O3/Al2O3 weight ratio is at least 2.5, and having a density of at least 3.0 g/cm3, exhibits a high oxidation resistance and a high strength at a high temperature.  This silicon nitride sintered body is prepared by sintering a powdery mixture consisting essentially of 1.5 to 3.0% by weight of Y2O3 powder, 0.1 to 1.0% by weight of Al2O3 powder, and 96 to 98.4% by weight of Si3N4 powder, the Y2O3/Al2O3 weight ratio being at least 2.5, the oxygen content in the Si3N4 powder being less than 2.0% by weight and the total metallic impurity content in the Si3N4 being less than 200 ppm, at a temperature of 1,850 to 2,000°C in a non-oxidizing atmosphere.
Patent CA-1332756-C (CA)
Title: Digital servo system using microcomputer for controlling phase and speed of rotary body
Inventor: TABUCHI JUNICHIRO
IPC: G05D13/62
Filed: 1988-02-09
Granted: 1994-10-25
Abstract: ABSTRACT OF THE DISCLOSURE    A microcomputer (20) servo controls the rotational speed and the rotational phase of a cylinder motor (37) of a VTR in a digital manner.  The microcomputer (20) generates a 10-bit digital phase error signal DPH having sufficiently low conversion gain and a 10-bit digital speed error signal DSP having sufficiently low conversion gain in response to an FG signal generated with rotation of a cylinder motor.  The digital phase error signal DPH and the digital speed error signal DSP are added to each other in a digital manner in the addition ratio 1:8.  In addition, this result of addition is amplified by four times in a digital manner by extracting eight lower order bits thereof and then, converted into an analogue signal and supplied to the cylinder motor as a servo control signal.  Thus, since the error signals are added to each other in a digital manner and then, the added signal is amplified as required, a digital servo having a large capture range can be achieved as whole.
Patent CA-1279214-C (CA)
Inventor: VEGTER HENK
IPC: B21B37/16
Filed: 1988-03-30
Granted: 1991-01-22
Abstract: A METHOD OF ROLLING STRIP IN A ROLLING MILL AND A CONTROL                SYSTEM THEREFOR     ABSTRACT OF THE DISCLOSURE     In the  rolling of a metal strip in a rolling mill which has a rolling mill train of one or more roll stands, before the metal strip enters the rolling mill train the roll stand are each given a presetting in accordance with a predicted necessary roll force Fi during rolling in roll stand i, which rolling force Fi is determined by the formula Fi = Ki * KSBi, in which Ki is a multiplication factor and KSBi is the resistance to deformation of the metal strip during rolling through the roll stand i.  To improve the average quality of the rolled product and to shorten the "learning" time when changing products, the resistance to deformation KSBi is chosen equal to an average rolling stress T for a strain E in the metal strip in roll stand i, the relationship between the rolling stress T and strain E during rolling being determined by the formula  T = C . f (E,EC), in which C and Ec have values dependent on the material of the strip, Ec being a critical strain.
Patent CA-1316239-C (CA)
Title: Low elevation guidance system
Inventor: AARSETH CRAIG T
IPC: G01S1/66
Filed: 1988-04-06
Granted: 1993-04-13
Abstract: ABSTRACT OF THE DISCLOSURE     A guidance system for aircraft wherein a radio antenna (101) on the ground transmits a beam (102) that sweeps across an aircraft (105) and the aircraft receives the beam and utilizes its amplitude waveform (107) in determining the location of the aircraft from the station.   At low elevation angles of the aircraft the portion of received waveform that includes significant amounts of signal reflected from the ground is used in only a preliminary manner.  The more reliable, directly radiated, portions of the waveform are utilized to compute by least squares error, the median of a Gaussian beam shape.  That median serves as an estimate of the time that the transmitting antenna was pointing directly at the aircraft.
Patent CA-1302114-C (CA)
Title: Device for filling up of recess left in concrete wall after removal of separator terminal
Inventor: FUKUSHIMA TAKUO
IPC: E04G23/02
Filed: 1988-04-12
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE    The  present  invention relates to  a  device  for filling  up  a  recess left in a  concrete  wall  after removal of a separator terminal, said device comprising a  main  body including a circumferential  step  formed around  its   outer   periphery  at   a   longitudinal intermediate location so that said circumferential step defines  a  diameter-reduced portion  and  a  diameter-enlarged  portion  of said main body,  a threaded  hole centrally  formed  and  axially  extending  in  an  end surface of said diameter-reduced portion to be  engaged with  a threaded end of the separator,  tool  receiving means  formed  in  an  end surface  of  said  diameter-enlarged  portion and an elastic  water-swollen  rubber cylinder  put  around said diameter-reduced portion  so that  an  outer periphery of said cylinder  is  tapered towards  the  end  surface  of  said   diameter-reduced portion  and  an end surface of said  cylinder  looking towards  the  end  surface  of  said  diameter-enlarged portion bears against said step of said main body while the  end surface of said cylinder looking towards  the end surface of said diameter-reduced portion extends at least  to  said end surface  of  said  diameter-reduced portion.
Patent CA-1293237-C (CA)
Inventor: NAKAMURA MASAZO
IPC: A47F5/08
Filed: 1988-05-19
Granted: 1991-12-17
Abstract: ABSTRACT OF THE DISCLOSURE           A member for mounting a suspension rail for hanging exhibits such as paintings is adapted to be secured to a wall near the ceiling by screws.  The member has a base plate and a supporting projection extending horizontally from the base plate.          The base plate has a pair of inclined surfaces at both sides of the supporting projection.   The projection is formed with a horizontal slit to form an elastic piece to facilitate the engagement of the suspension rail.
Patent CA-1338090-C (CA)
Inventor: ENOMOTO MASAO
IPC: C07D417/04
Filed: 1988-05-20
Granted: 1996-02-27
Abstract: Thiazolidin-4-one derivative represented by the following general formula (I) and acid addition salts thereof (I)   wherein;         R1 and R2 are the same or different and denote each (i)    a residue represented by the general formula wherein, A denotes a single bond, C1-C8 alkylene, C2-C8 alkenylene, or C2-C8 alkynylene and R4 denotes hydrogen, C1-C12 alkyl, C2-C8 alkenyl, C3-C8 cycloalkyl, or C1-C6 haloalkyl, or (ii)   a residue represented by the general formula   wherein, B denotes a single bond or C1-C6 alkylene, R5 denotes hydrogen, C1-C6 alkyl, C2-C8 alkenyl, C3-C8 cycloalkyl, substituted silyl, or substituted or unsubstituted aryl, n and n' denote each an integer of 2 to 4, m denotes an integer of 1 to 3, and m' denotes an integer of 0 to 2; and R3 denotes hydrogen, C1-C2 alkyl, allyl, 2-propynyl, or a residue represented by (a)    the general formula (CH2)? R6 wherein, R6 denotes halogen, an aryl group substituted or unsubstituted by one or more hydroxy or C1-C4 alkoxy groups, or a residue represented by the general formula -D-R7 (D denotes oxygen or sulfur and R7 denotes hydrogen, C1-C4 alkyl, or C1-C4 alkanol) and ? denotes an integer of 2 to 4, (b)    the general formula ?CH2?  CO-E-R8 wherein, E denotes oxygen, sulfur, imino, or C1-C4 alkylimino, R8 denotes hydrogen or C1-C4 alkyl, or -(E-R8) denotes a 5- to 7-membered cyclic amino group which optionally contains other hetero atoms, and k denotes an integer of 1 to 3, or (c)    the general formula wherein, F denotes C2-C6 alkylene and R9 denotes a nitrogen-containing heterocyclic aromatic residue or an amino group represented by the general formula    (R10 denotes hydrogen, C1-C4 alkyl, or C1-C4 alkyl or R10 in combination with R11 denotes a 5- to
Patent CA-1302678-C (CA)
Title: Merchandising wall structure including readily attachable and detachable panels and having plastic reveals
Inventor: BODUROW CONSTANCE C
IPC: E04B2/00
Filed: 1988-06-08
Granted: 1992-06-09
Abstract: Abstract of the Disclosure;      A modular merchandising wall panel construction including at least two vertically oriented structural members in edge-to-edge engagement, and means affixing the structural members together and permitting ready disassembly thereof, comprising a vertically oriented standard affixed to the edge of one structural member, the standard being in the form of a channel having flanges extending therefrom, a wall of the channel having slots provided therein, and a plurality of rotary bolt locks mounted in the edge of the other structural member, the rotary bolt lock having an arcuate bolt engaging the slots of the vertical standard, thereby locking the structural members together, and permitting easy disassembly thereof.  In one embodiment of the invention some of the structural members comprise pilasters also having rotary bolt locks or vertical standards for assembly with the other structural members.  In a further improved embodiment plastic reveals are inserted between the walls of the standard and the edges of the structural members to pro-vide a more secure joint and also to improve the esthetic appearance of the modular structure.
Patent CA-1316158-C (CA)
Inventor: LOWE JOHN C JR
IPC: F21Y103/37
Filed: 1988-06-28
Granted: 1993-04-13
Abstract: ABSTRACT     A one-piece leg strap for a U-shaped fluorescent lamp having two  longitudinally extending  leg members joined together by a U-bend portion.   The leg brace includes an elongated central body portion and a pair of  generally  circular  end  portions.   Each  of  the circular end portions defines an opening therewithin having  an  inside  diameter  relative  to  the  outside diameter of a respective lamp base member.  A non-slip friction fit retains the leg strap on the lamp base members.   Means  are  provided  in  the  leg  strap  to compensate for variations in the outside diameter of the lamp base members.  In a preferred embodiment,  a pair of notches are located at opposite ends of the central  body  portion  and  define  first  and  second laterally flexible projecting members which allow the end  portions  of  the leg brace to be easily slipped over the lamp base members.  The leg brace supports the   longitudinally  extending   leg  members  during handling, shipment and installation by preventing the leg members from being compressed or spread apart and also  ensuring  the  proper  spacing  of  the  two  base members.
Patent CA-1301244-C (CA)
Title: Battery vent valve
Inventor: MCCARTNEY CHARLES P JR
IPC: H01M2/12
Filed: 1988-06-30
Granted: 1992-05-19
Abstract: BATTERY VENT VALVE Abstract of the Disclosure A relief/check valve for venting an electric storage battery comprising essentially an annular sealing member having an elastomeric skirt engaging the sloping exterior surface of a valve seat.  The skirt flares outwardly from the seat in direct proportion to the pressure in the battery such as to prevent excessive build up of pressure in the battery when the gassing rate is high.  The skirt quickly returns to a sealing condition when the pressure within the battery drops below the opening pressure of the valve.
Patent CA-1315830-C (CA)
Title: Mobile van layout
Inventor: GERZENY RUBEN
IPC: B60P3/325
Filed: 1988-07-06
Granted: 1993-04-06
Abstract: ABSTRACT OF THE INVENTION     A mobile van having a van body is disclosed including plurality of compartments serially arranged longitudinally of the van body.   A forward compartment has a galley facility disposed immediately behind the driver's seat, along a first sidewall of the van, and a dining facility disposed along the opposite sidewall of the van body and substantially opposite the galley facility.  There is a forward passageway section arranged longitudinally of the van body between the galley facility and the dining facility,   An intermediate compartment includes a first storage facility disposed along the first sidewall of the van body, immediately behind the galley facility, and a toilet facility disposed along a second sidewall,  immediately behind the dining facility and substantially opposite the first storage facility. There is an intermediate passageway section arranged longitudinally of the van body between the first storage facility and the toilet facility and in communication with the forward passageway section to permit movement between the forward and intermediate compartments. A rearward compartment includes a first bench disposed along the first sidewall of the van body and a second bench disposed along the second sidewall of the van body, substantially opposite the first bench. rearward passageway section is arranged longitudinally of the van body between the first and second benches and is in communication with an intermediate passageway section to permit movement between the rearward and intermediate compartments.
Patent CA-1287786-C (CA)
Title: Coupling and seal assembly
Inventor: MUNOZ JOSE P
IPC: B65D53/00
Filed: 1988-07-07
Granted: 1991-08-20
Abstract: COUPLING AND SEAL ASSEMBLY                 Abstract of the Disclosure The Assembly couples a plunger, at one end thereof, to a ram without bolting (with a resilient retaining ring) and receives the other plunger end in a high-pressure cylin-der through centering and sealing components combined within the cylinder.  No elements of the Assembly are bolted together; the centering and sealing components are secured in the cylinder only by a single retaining ring.
Patent CA-1310514-C (CA)
Title: Tension measuring apparatus
Inventor: RICHARDS BRIAN D
IPC: G01L5/10
Filed: 1988-07-14
Granted: 1992-11-24
Abstract: TITLE TENSION MEASURING APPARATUS ABSTRACT OF THE DISCLOSURE A  threadline tension measuring apparatus  having a dual beam cantilever supporting an even threadline guide surface wherein tension measured is insensitive to axial location of threadline loading.  Overload and structural protection for the apparatus are provided.
Patent CA-1326039-C (CA)
Inventor: SCHUBERT HANS H
IPC: C07F7/08
Filed: 1988-09-16
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE            Description Process for the preparation of (aryl)-(dimethyl)-(3-(4-fluoro-3-aryloxyphenyl)propyl)silanes The present invention relates to a process for the pre-paration of compounds of the formula I       (I) in which R1 denotes H, halogen, (C1-C4)-alkyl or (C1-C4)-alkoxy and R2 denotes H, halogen, (C1-C4)-alkyl, (C1-C4)-alkyl-thio, (C1-C4)-alkoxy or the bivalent group 3,4-0-CH2-O, comprising reacting a compound of the formula II                                         (II) in uhich X denotes halogen and R2 has the meaning as in formula I, in the presence of a copper catalyst with an alkali metal phenolate or alkaline earth metal pheno-late of the formula III                                         (III) in which M denotes an alkali metal or an alkaline earth metal and R1 has the meaning as in formula I.
Patent CA-1331979-C (CA)
Inventor: KATOH HIDEAKI
IPC: F21V7/09
Filed: 1988-10-31
Granted: 1994-09-13
Abstract: Abstract of the Disclosure A thin illumination device providing uniform luminance distribution on the diffusing plate comprising a reflecting plate, linear light sources arranged in the vicinity of the reflecting plate and a diffusing plate arranged on the opposite side of the reflecting plate with regard to the light sources, section of the reflecting plate having a shape of continuous curves having different curvature.
Patent CA-1309686-C (CA)
Title: Evacuateur a fumier avec porte pivotante
Inventor: COTE CAMILLE
IPC: A01K1/01
Filed: 1988-11-01
Granted: 1992-11-03
Abstract: L'invention a pour objet un évacuateur à fumier du type dans lequel le fumier est emmagasiné dans une cuve dont l'entrée est pourvue d'une porte et la sortie reliée à un tuyau d'évacuation pouvant conduire, par exemple, au centre d'un tas de fumier extérieur, et dans lequel l'évacuation s'effectue en injectant de l'air comprimé au-dessus du fumier à l'intérieur de la cuve une fois la porte de cette dernière fermée. Cet évacuateur à fumier est caractérisé en ce que sa porte est constituée par une simple plaque montée sur un bras lui-même monté à une extrémité sur un pivot vertical fixé à même la paroi de la cuve à l'intérieur de celle-ci. Un cylindre de préférence hydraulique est prévu dans la cuve pour, en opération, amener par simple balayage horizontal du bras la porte depuis une position où elle obstrue l'entrée à une position en retrait de l'entrée sous le toit de la cuve. Cette structure extrêmement simple a le grand avantage de permettre un remplissage maximum de la cuve avant d'avoir à pressuriser celle-ci pour évacuer le fumier, sans que la porte ne soit enfouie et, de là, ne risque de se coîncer.
Patent CA-1317230-C (CA)
Inventor: YAZAKI TAKASHI
IPC: A61K31/495
Filed: 1988-11-02
Granted: 1993-05-04
Abstract: AQUEOUS PREPARATION OF 9-METHYL-3-(1H-TETRAZOL-5-YL) 4H-PYRIDO[1,2-a]PYRIMIDIN-4-ONE POTASSIUM SALT                  ABSTRACT OF THE DISCLOSURE   An aqueous preparation for the treatment of allergic diseases comprising 9-methyl-3-(1H-tetrazol-5-yl)-4H-pyrido-[1,2-a]pyrimidin-4-one potassium salt, dibasic potassium phosphate and monobasic potassium phosphate.  The aqueous preparation has no local irritation and physicochemical stability during long-term storage.
Patent CA-1287492-C (CA)
Title: Plant or seedling support stake
Inventor: HAWKE DAN
IPC: A01G9/12
Filed: 1988-11-25
Granted: 1991-08-13
Abstract: ABSTRACT OF THE DISCLOSURE     The invention provides a one piece planar plant support comprising an elongated vertical stake which can be folded along its longitudinal axis, and a pair of integral and co-planar arms extending horizontally in opposite directions from the stake.  Notches in the arms allow the arms to be secured together in a crossed-over position when the stake is folded.  Each arm has a rectangularly shaped end portion at its free end which is folded inwardly toward the other arm when the arms are crossed forming a clasp of triangular configuration to retain a plant stem.
Patent CA-1331195-C (CA)
Inventor: COLOMBIER CHRISTIAN
IPC: C08G77/54
Filed: 1988-12-15
Granted: 1994-08-02
Abstract: New polymers containing a plurality of -NR-Si- units and oxygen. 
<??>The invention also relates to a process for the preparation of these polysiloxazanes by reacting a halosilane with a hydrazine and water. 
<??>The polysiloxazanes obtained can be shaped and pyrolysed to ceramics.
Patent CA-1305185-C (CA)
Title: Process for preparing bisphenol a
Inventor: IIMURO SHIGERU
IPC: B01J27/10
Filed: 1989-01-06
Granted: 1992-07-14
Abstract: ABSTRACT OF THE DISCLOSURE      This invention relates to a process for preparing high purity bisphenol A comprising feeding continuously phenol and acetone in the presence of a hydrochloric acid catalyst into a reactor in a first stage and reacting phenol and acetone in the range of 20 - 60 mol% of acetone conversion, removing continuously the first reaction product from the reactor in the first stage, feeding the first reaction product into a reactor of batch type in a second stage and completing the reaction of phenol and acetone to obtain a second reaction product and removing unreacted phenol, water formed by the reaction and hydrochloric acid from the second reaction product and recovering bisphenol A.
Patent CA-1333908-C (CA)
Inventor: MAFFRAND JEAN-PIERRE
IPC: C11B3/02
Filed: 1989-01-20
Granted: 1995-01-10
Abstract: The present invention relates to a novel process for the elimination of steroid compounds contained in a substan-ce of biological origin by complexing the steroidal compounds by means of a cyclodextrin, in an aqueous medium, under agitation at a temperature between 20 and 80°C and then separating the complexes so formed.