baber/WOPTO huggingface dataset:
Patent CA-1275680-C (CA)
Title: Article obtained by injection molding
Inventor: INAGAKI AKIO
IPC: F02B35/00
Filed: 1987-02-25
Granted: 1990-10-30
Abstract: ABSTRACT OF THE DISCLOSURE           An  article,   obtained  by   injection  molding, includes a first member on which an electrical element such as  a  coil  is  provided or mounted and a  second  member, surrounding the first member, formed integrally therewith.          A first radially inward projection of the second member is in abutment with a first annular flange of the first member.          A second radially inward projection of the second member is fitted in and welded to a vee on the first annular flange.          Such weld acts as a seal for water-prooving the electric element.    For  preventing  separation  of  weld  due  to repetition of radial expansion of electrical element upon current application thereto, a connecting means is provided between the first radially inward projection and the first annular flange.
Patent CA-1291504-C (CA)
Title: Seal means for a master cylinder
Inventor: STEER JOHN E
IPC: B60T11/20
Filed: 1987-03-03
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE        A master cylinder (10) having a sleeve (24) for positioning first (22) and second (30) seal members within a bore (14) of the housing (12).  The first (22) and second (30) members each have a primary seal (52), a retainer (58) and secondary seals (54 or 55).  The primary seals (52) have a base member (60), a peripheral ring (64) and a flexible section (66).  The retainers (56) have a groove (70) for holding the base member (60), radial slots (74, 74') connect to a source of fluid and either a rib (100) or projection (94) for positioning the secondary seals (54 or 55).  First (38) and second (40) pistons which engage the first (30) and second (22) seal members, have communication passages (80, 82) through which the radial slots (74, 74') (75, 75') are connected to first (48) and second (42) chamber.  In response to an input force, the first (38) and second (40) pistons move into the first (38) and second (42) chambers, respectively, to pressurize fluid therein after interrupting communication through the passages (74, 74') (75, 75').  The fluid pressure acts on the base mem-bers (60, 60') to seal the chambers (46, 42) from the source of fluid (23).  As the first (38) and second (40) pistons move out of the chambers (46, 42), a vacuum may be created therein.  The flexible sections (66, 66') allow the peripheral rings (64, 64') to move and permit the vacuum to draw fluid into the chambers (46, 42) to assure that a substantially constant volume of fluid is available to effect a brake application.
Patent CA-1295183-C (CA)
Title: Ink jet printhead having a preloaded check valve
Inventor: NIELSEN NIELS J
IPC: B41J2/055
Filed: 1987-03-05
Granted: 1992-02-04
Abstract: Abstract A preloaded check valve disposed in a valve  body between an ink reservoir and a printhead has a valve opening pressure  or  "cracking"  pressure at  least  sufficient  to overcome  the hydrostatic pressure due to gravity of ink  in the reservoir.  This prevents depriming or leakage of ink at the  orifices  of the orifice plate forming part of the  ink ejecting mechanism.  Ejection of ink during printing creates a pressure differential across the valve sufficient to cause it to open and replenish the ink supply at the ink  ejecting mechanism.
Patent CA-1284714-C (CA)
Title: Wall construction
Inventor: MENCHETTI ROBERT J
IPC: E04C2/04
Filed: 1987-04-16
Granted: 1991-06-11
Abstract: ABSTRACT OF THE DISCLOSURE           A wall construction wherein a sheet of paper covered gypsum wallboard has at least one V-shaped groove formed part way through the thickness of the wallboard, and a sheet of rigid bendable sheet metal, conforming to one surface of the wallboard, along the groove area, is laminated to the wallboard whereby folding of the wallboard and sheet metal, along the groove, closing the groove, results in a folded section which remains firmly folded by reason of the folded rigid sheet metal laminate.
Patent CA-1288386-C (CA)
Title: Screw cap construction
Inventor: STULL GENE
IPC: B65D41/04
Filed: 1987-05-11
Granted: 1991-09-03
Abstract: SCREW CAP CONSTRUCTION                     ABSTRACT    A screw cap and sealing liner construction includ-ing a cap body having a-transverse top wall with an in-side surface, and having an annular skirt depending from the top wall, the annular skirt having an internal screw thread which extends upward and has a top end located closely adjacent the inside surface. A sealing liner is disposed immediately below and against the inside wall surface, and has a peripheral portion located between this surface and the top end of the screw thread to be engaged and positioned thereby. A nib is provided on the inside of the annular skirt at a location circumferen-tially spaced from the top end of the screw thread. The nib is adjacent the inside surface of the top wall and engages the underside of the sealing liner to retain the liner in position below this surface. The advantage of the present construction over the devices of the prior art is that there is simplified both the molding of the cap and the stripping of the cured part from the mold.          Additionally, deformation of the liner is minimized dur-ing initial installation.
Patent CA-1306476-C (CA)
Title: Racket with improved throat portion
Inventor: NAN LO KUN
IPC: A63B49/02
Filed: 1987-05-19
Granted: 1992-08-18
Abstract: A B S T R A C T            A RACKET WITH IMPROVED THROAT PORTION        A racket with improved throat portion (13a, 13b) having  a  plurality  of  symmetrical  and  equidistant recesses (19) on the upper and lower surfaces (17a, 17b, 18a, 18b) of the throat portion to form an oscillation zone for the optimum flexibility and stiffness.
Patent CA-1280461-C (CA)
Title: Electric lamp with flexible cover holder
Inventor: MORRIS MERLE E
IPC: H01J5/56
Filed: 1987-07-02
Granted: 1991-02-19
Abstract: TITLE: ELECTRIC LAMP WITH FLEXIBLE COVER HOLDER       ABSTRACT       An improved electric lamp wherein a flexible cover holder is utilized to secure the lamp's cover means (e.g., lens) against the reflector in a sealed manner. The holder flexes during lamp operation to enable expansion and/or contraction of the cover means in such a manner that damage thereto is substantially prevented. In one example. a ceramic reflector and glass lens combination was used, with the holder comprising an annular, metallic (e.g.. aluminum) rim.
Patent CA-1296358-C (CA)
Title: Process for removing paraffins from their mixtures with paraffinsulphonic acids
Inventor: FAGGIAN LUCIO
IPC: C10G21/06
Filed: 1987-07-21
Granted: 1992-02-25
Abstract: "PROCESS FOR REMOVING PARAFFINS FROM THEIR MIXTURES WITH PARAFFINSULPHONIC ACIDS."            ABSTRACT OF THE DISCLOSURE:            Mixtures of C12-C18 n-paraffins with paraffinsulphonic acids having the same number of carbon atoms, water and sulphuric acid, and obtained by sulphoxidation of said paraffins with SO2 and O2 in the presence of water and UV radiation are stripped of their excess SO2 and decanted to separate most of the paraffins,  and obtain a residual mixture.   The residual mixture is dehydrated according to the invention until a two-phase system forms or at least until the mixture becomes turbid, and the dehydrated mixture either as such or after separating the heavier phase consisting of water and sulphuric acid is extracted with supercritical CO2, which removes with it the n-paraffins, these being reused in the sulphoxidation process.
Patent CA-1305178-C (CA)
Title: Anhydrous diluent process for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid
Inventor: ETZKORN WILLIAM G
IPC: C07C51/25
Filed: 1987-08-10
Granted: 1992-07-14
Abstract: ABSTRACT        The processes for oxidation of propylene to acrolein and the oxidation of propylene to acrylic acid in two stages with acrolein as an intermediate are improved by use of anhydrous diluent gases to reduce or replace steam in the reaction streams.  In particular, the use of anhydrous diluents which raise the composite flowing heat capacity of the diluent gas mixture to at least about 6.5 calories/ gram-mole (°C) will improve selectivity to desired products and will reduce the water load on the system.  Reduction in second-stage catalyst efficiency is compensated for by introducing steam to the feed to the second stage, and/or by increasing the operating temperature of the second stage, and/or by increasing the active surface area of the second-stage catalyst.
Patent CA-1292749-C (CA)
Title: Platinum complexes
Inventor: NOWATARI HIROYOSHI
IPC: C07F15/00
Filed: 1987-08-19
Granted: 1991-12-03
Abstract: ABSTRACT OR THE DISCLOSURE             A diamine platinum (Il) complex represented by the general formula   [wherein R1 and R2 are each a lower alkyl group: and two X's are each a halogen  atom or iointly form a group represented by           or        (wherein R3 and R4 are each a hydrogen atom or a lower alkyl group) or a group represented by             or            (wherein m is 1 or 2(].  Such compounds have an antitumor activity, high solubility in water, low renal toxicity and low vomiting toxicity.
Patent CA-1302979-C (CA)
Title: Multiple pipette sampler
Inventor: HANAWAY RICHARD W
IPC: G01N35/10
Filed: 1987-08-24
Granted: 1992-06-09
Abstract: MULTIPLE PIPETTE SAMPLER     ABSTRACT OF THE DISCLOSURE           A pipette sampling device for removing and transferring a plurality of liquid samples consists of an improved structure which allows a low cost manufacturing process, the use of a minimum amount of material in such process, and a pipette cavity shaped such that hydraulic principles insure accuracy during filling and dispensing.   The pipette sampling device is positionable within a filling tray which permits an initial filling of the pipettes by a liquid through capillary action, and an actuating device is then attached over the pipettes.  The actuating device provides a vacuum so that the liquid is drawn into each pipette cavity  until the walls and rims of all of the cavities are completely wetted and a stretched meniscus is formed at the top of each cavity.  The actuator may then be utilized to effects the dispensing of the liquid in each pipette cavity through a provided pressure.  To accomplish this process, the sampling device is constructed to include a manifold which is designed as an inflexible, rigid monocoque structure.
Patent CA-1339368-C (CA)
Title: Optically active compounds
Inventor: REES LILIAS
IPC: A61P35/00
Filed: 1987-09-03
Granted: 1997-08-26
Abstract: The present invention relates to the preparation of substantially pure diastereoisomers of derivatives of tetrahydrofolate and the use of such diastereoisomers. More particularly the present invention provides a process for the preparation of a desired substantially pure (6R , or 6S) diastereoisomer of a derivative of tetrahydrofolic acid or salt or ester.  The process comprises the steps of: attaching a chiral auxiliary group at either N-5 or N-10 of a mixture of 6R and 6S diastereoisomers of tetrahydrofolic acid, separating the new diastereoisomers, recovering the desired new diastereoisomer (6R or 6S) corresponding to the desired (6R or 6S) diastereoisomer, and converting the substantially pure new diastereoisomer recovered into the corresponding diastereoisomer.
Patent CA-1278738-C (CA)
Inventor: POSEY JOHN L
IPC: B65H21/00
Filed: 1987-09-14
Granted: 1991-01-08
Abstract: ABSTRACT     An apparatus for splicing film together is provided. The apparatus includes a first jaw and a second jaw, the jaws cooperating to clamp two film ends together.  A heat sealer for sealing the two film ends together is located in the first jaw.  A rotatable block is located in a second jaw.  The rotatable block is rotatable to a cutting position and a sealing position.  In the cutting position, a side of the rotatable block having a slot faces upwardly and contacts the film.  In the sealing position a side of the rotatable block having a back up member faces upwardly and contacts the film.  When the film is clamped between the jaws and the rotatable block and is in the cutting position, a portion of the block, and accordingly the film, extends outwardly from a horizontal plane defined between the jaws.  Therefore, after the film is cut along the slot in the block and the block is rotated to the sealing position, the severed ends of the film overlap.  A method of splicing film is also provided.
Patent CA-1313850-C (CA)
Title: Envelope
Inventor: HUTCHINSON WILBUR P
IPC: B65D27/10
Filed: 1987-09-18
Granted: 1993-02-23
Abstract: ABSTRACT OF THE DISCLOSURE      An envelope in which an insert is nested comprises a sheet of material having given horizontal and vertical dimen-sions, the  sheet having a first fold line parallel to and be-tween the horizontal end edges thereby providing first and sec-ond parts of the sheet and a second fold line perpendicular to the first fold line.  A window is provided in one of the parts of the sheet, and lines of adhesive are provided on the sheet along portions of the edges thereof.  The arrangement is such that the first part of the sheet may be folded along the first fold line to overlie the second part of the sheet and then the overlaid parts of the sheet folded again along the second fold line to provide a compartment of the envelope in which the in-sert is be nested whereby the insert is prevented by the second fold from moving to the window and obscuring the view of an address through the window.
Patent CA-1279359-C (CA)
Title: Frost plug heater
Inventor: SMITH EDWARD L
IPC: H05B3/02
Filed: 1987-10-09
Granted: 1991-01-22
Abstract: ABSTRACT OF THE DISCLOSURE          The clamping mechanism for an electrical immersion heater is designed so that it can be easily assembled using automatic machines.  The head of the screw is located on the outside of the disc shaped body member so that it can be easily engaged by the tool,  as well as to provide a low profile  for the device.   The inner end of the screw is operably connected  to  a  captive nut  located within the confines of a yoke member.
Patent CA-1298369-C (CA)
Inventor: DEBORTOLI GEORGE
IPC: H01R4/24
Filed: 1987-11-06
Granted: 1992-03-31
Abstract: INSULATION DISPLACEMENT MEMBERS AND ELECTRICAL CONNECTORS     Abstract of the Disclosure Insulation displacement terminal member having cantilever spring contact members which are spaced-apart to receive a conductor between them.  Each contact member has an outward projection for engagement with the wall of a cavity of a connector housing to prevent undue movement apart of the members when a heavily insulated conductor is forced between them under extremely cold conditions.  Ideally, the projections are convex to permit a rolling action upon the cavity wall.                             - i -
Patent CA-1327319-C (CA)
Title: Rotary screen diverter and solid waste handling system using same
Inventor: CHAMBERS JOSEPH W SR
IPC: B07B1/10
Filed: 1988-03-15
Granted: 1994-03-01
Abstract: ABSTRACT OF THE DISCLOSURE A solid waste handling system for screening and grinding solids entrained in an influent liquid stream flowing within a chute between laterally spaced vertical sidewalls utilizes at least one solids diverter horizontal rotating screen unit fixedly mounted within the chute and at an angle to the influent liquid stream with an endless loop open mesh screen mounted for rotation on a frame assembly such that one upstream face of the screen is vertical and moves horizontally across the stream in a direction towards the downstream offset grinder unit.  The grinder unit has a housing with an upstream facing inlet port and mounts internally within the housing stacked interengaging shredding members for rotation about their axes in the path of flow of the solids bearing influent.  Motors mounted to the units above the influent liquid stream level drive the screen and shredding members of respective units.  Multiple screen units and multiple grinder units may be employed with the multiple screen units in stacked array, in end overlapping position, and with the endless screens driven to deflect solids towards one or more grinder units offset below the most downstream screen unit of the array.
Patent CA-1285624-C (CA)
Title: Printed circuit connection system
Inventor: ROBERTS JOSEPH A
IPC: H01R12/79
Filed: 1988-03-25
Granted: 1991-07-02
Abstract: ABSTRACT OF THE DISCLOSURE     A connection system for connecting a flexible circuit having a row of printed contact areas to a PC board having a corresponding row of terminal posts employs a connector having a housing with a bottom wall and a pair of side walls at least one of which is movable with respect to the other.  A row of post-receiving passages are present in the bottom wall which passages are arranged to receive the posts of the PC board.  An edge margin of the flexible circuit is clamped between the housing side walls so that the contact areas thereon ace aligned with the passages in the housing bottom wall and a set of springs positioned inside the housing flexes the circuit edge margin so that when the movable housing side wall is in its closed position, the row of contact areas overhang the passages in the housing bottom wall.  Consequently when the connector housing is impaled on the printed PC board posts, the posts project into the housing and are resiliently engaged by  corresponding ones of the flexible circuit conductive areas.
Patent CA-1311348-C (CA)
Title: Apparatus for tapping or splicing undercarpet cable
Inventor: NOORILY PETER
IPC: H01R12/61
Filed: 1988-03-25
Granted: 1992-12-15
Abstract: T&B 998 ABSTRACT            APPARATUS FOR TAPPING OR SPLICING UNDERCARPET CABLE           The tapping or splicing apparatus for electrically connecting cables of the type having plural insulated conductors and drain wires comprises a base having an upper surface and a lower, substantially flat surface for juxtaposition with a floor surface.  A plurality of insulation displacement contacts are supported on the base upper surface, each contact being configured to receive and electrically connect insulated conductors from at least two electrical cables.  A detachable cover is secured to the base, the cover having an extent covering the contacts and including an upper surface that tapers downwardly toward the cover periphery.  At the cover periphery there are plurality of cutouts extending through the upper surface of the cover, each cutout configured to accommodate a cable therein in a manner to present a gradual taper of the apparatus beneath carpets in an undercarpet wiring system to minimize its height effect in use.
Patent CA-1320452-C (CA)
Title: Hydrostatic method employing psa vent gas pressure for vacuum regeneration
Inventor: LERNER STEVEN L
IPC: B01D53/04
Filed: 1988-05-10
Granted: 1993-07-20
Abstract: ABSTRACT          This   invention  relates  to an  energy  efficient method  of  vacuum  regenerating  an  adsorbent  bed.   In a typical process, the adsorbent bed undergoes an adsorption step, a vent step, and a vacuum purge step.  According to the present invention, the energy of the usually discarded vent gas is used to raise a dense liquid from a lower tank to  a  higher  tank.   The potential  energy of  the  raised liquid, upon returning from the higher tank to the lower tank, is used to generate a vacuum for vacuum regeneration of the adsorbent bed.
Patent CA-1330955-C (CA)
Title: Filtering device
Inventor: SAVAS PETER G
IPC: B01L3/02
Filed: 1988-05-19
Granted: 1994-07-26
Abstract: ABSTRACT     A filtering device for fluids which includes a barrel with an open end and a flow discharge end.  A plunger is slidable disposed in the barrel through the open end toward the discharge end and an exhaust nipple projects from the discharge end.  The nipple is in communication with the interior of the barrel.  A filter is disposed adjacent the barrel inwardly of and adjacent to the discharge nipple, and an annular, integral support stand is disposed at the discharge end of the barrel and surrounds the nipple. The nipple terminates at a point spaced from a planar surface defined by the support stand, which surface is normal to the axis of the barrel and the direction of movement of the plunger whereby the device will stand on a surface with the exhaust nipple spaced from said surface.
Patent CA-1302087-C (CA)
Title: Animal toys
Inventor: FUJIMAKI HIROAKI
IPC: A63H3/28
Filed: 1988-05-26
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE         Animal toys capable of electrically producing sound and/or body movements are switched on and off by a pair of spaced apart electrical contacts disposed on a bottom surface of the animal toys.  When a toy is placed in an individual's hand, the two contacts are bridged and an electrical circuit within the animal toy is closed to activate either a sound producing mechanism or a movement mechanism, or both.
Patent CA-1312308-C (CA)
Title: Dispositif pour l'application d'un produit liquide, notamment pour l'application de vernis a ongles
Inventor: MORANE BRUNO
IPC: A45D34/04
Filed: 1988-06-02
Granted: 1993-01-05
Abstract: DISPOSITIF POUR L'APPLICATION D'UN PRODUIT LIQUIDE, NOTAMMENT POUR L'APPLICATION DE VERNIS A ONGLES. Le dispositif (1) comprend un pinceau applicateur (4) comportant une tige (5) munie de moyens applicateurs (A) tels que des poils (6). La tige (5) est portée par un couvercle (7) destiné à fermer le goulot, ce couvercle étant solidaire d'une chemise (9) propre à entourer la tige (5). Cette tige (5) est montée mobile en translation, dans ladite chemise (9), par rapport au couvercle (7), la chemise (9) comportant un étranglement (11) à son extrémité éloignée du couvercle, étranglement à travers lequel peuvent passer les moyens applicateurs (A) du pinceau, ladite tige (5) de pinceau comportant un renflement (12) propre à venir s'appliquer contre ledit étranglement (11) sous l'effet de la pesanteur, lorsque le pinceau (4) est orienté vers le bas, de manière à retenir la tige et à fermer ledit étranglement. La susdite chemise (9) comporte, du côté du couvercle, au moins une fenêtre (14, 15) permettant l'entrée du liquide dans la chemise lorsque le flacon, fermé par le couvercle, est retourné, un espace libre (16) existant entre la surface intérieure de la chemise et la surface extérieure de la tige, pour former réservoir de liquide, la longueur (L) de la chemise étant supérieure à celle (l1) de la tige de telle sorte que ladite tige (5) puisse reculer dans la chemise (9), ce qui assure l'ouverture du susdit étranglement.
Patent CA-1286273-C (CA)
Title: Tape cassette having rewind control mechansim
Inventor: ARMSTRONG RICHARD J
IPC: G11B23/087
Filed: 1988-06-03
Granted: 1991-07-16
Abstract: ABSTRACT A tape cassette which has a limited access rewind system includes a one-way coupling arranged to communicate between the spool and the rewind mechanism.  The one-way coupling mechanism includes an engagement disc which is mounted in the housing and forms a part of the take-up spool.  The one-way coupling device serves to engage automatically to prevent rotation of the spool relative to the engagement member in the unwinding direction and to release automatically to permit free rotation of the spool in the winding direction.  A locking mechanism is located in the housing which is operable to secure the engagement member against rotation and thereby prevent rotation of the spool in the take-up direction.  The locking mechanism may be released to disengage the engaging member to permit free rotation of the engagement member and spool about the take-up access.  The tape cassette also includes a releasable latching mechanism which serves to lock each spool against rotation during shipping and handling.