baber/WOPTO huggingface dataset:
Patent CA-1310784-C (CA)
Inventor: ROSENFELD JEROLD C
IPC: C08L67/02
Filed: 1987-02-13
Granted: 1992-11-24
Abstract: ABSTRACT OF THE DISCLOSURE          A process for preparing an aromatic polyester derived from aromatic dicarboxylic acid and bisphenol includes adding a phosphite stabilizer to reduce coloration and reduce loss of intrinsic viscosity of the aromatic polyester to a molten mixture o the monomeric reactants or prepolymer.
Patent CA-1278495-C (CA)
Title: Fluid flow regulator
Inventor: CHAUVIER DANIEL J V D
IPC: E04H4/16
Filed: 1987-03-26
Granted: 1991-01-02
Abstract: ABSTRACT     A  fluid  flow  regulator  10 comprises a body 11 defining three  converging  flow passages A, B and C between inlets 14,  13  and  12  respectively,  and  outlet  15, which is connectable to  a  suction  source. Passages A and B each includes a valve. Turbine 16 in passage C drives actuating means  periodically to operate the valves thereby to cause passages  A  and B periodically to be opened and closed in tandem.    The  regulator    may  be  employed  to  suck predetermined    quantities  of  fluid  from  two  sources connected  to  inlets  14  and  13,  respectively. Another embodiment    series   as  displacement  apparatus  for  a submersible cleaner. With passage B open to admit water to drive  propeller  34  for  displacing  the  apparatus  and cleaner,  passage  A  is  closed  to reduce suction at the cleaner.  With  passage  B  closed,  passage  A is open to transmit  suction to the cleaner for it to be propelled by its own driving mechanism.
Patent CA-1333549-C (CA)
Inventor: FUJITA NOBORU
IPC: B41M1/32
Filed: 1987-04-09
Granted: 1994-12-20
Abstract: This invention relates to a transparent-plastic printing film suitable for offset printing or letterpress printing where an oil ink of the oxidative polymerization type is used.  An ink-setting layer composed principally of a rubbery resin and/or styrene resin is provided on at least one side of a transparent plastic film, whereby the transparent plastic printing film permits  lithographic offset or the like without losing the transparency of the film.  Fine ruggedness may be formed on at least one side of the transparent plastic printing film.  The transparent plastic printing film may also be subjected to an antistatic treatment.  Sheet-fed printing making use of the above film does not develop blocking, tacking, scratches, abrasion, etc.  The above-described various properties have been improved further in a transparent plastic printing film provided with an ink-setting layer, which has been formed by coating a mixture of (i) a solution of the rubbery resin and/or styrene resin and (ii) a silica sol.
Patent CA-1299077-C (CA)
Inventor: DEBROCHE CLAUDE
IPC: B29D30/70
Filed: 1987-06-02
Granted: 1992-04-21
Abstract: A process for producing a tire reinforcement is characterized by the fact that each reinforcement cord is projected individually into its place in the reinforcement. For this purpose, a machine is used which comprises laying members comprising essentially a rotary conduit which projects the cord by a radially outer extremity of the conduit and rollers which impose a linear speed of laying of the cord.
Patent CA-1287308-C (CA)
Title: Container cap
Inventor: HALM HANS
IPC: B65D47/14
Filed: 1987-06-18
Granted: 1991-08-06
Abstract: ABSTRACT            Container Cap A cap foe a dispensing container for a liquid, has an outlet orifice sealable by a plug formed on a flexible band which is hingedly attached to the cap and which, when the plug is removed from the orifice forms a hanging support for the container the band lying in the same vertical plane in both the open and closed positions.  The cap is useful for containers for shower gels and the like, where it is necessary to hang the container from a support during use.  The cap can also be adapted to contain two orifices each serving a separate compartment of a twin-compartment pack.
Patent CA-1283484-C (CA)
Title: Method and apparatus for controlled removal and insertion of circuit modules
Inventor: HERRIG HANZ W
IPC: G06F3/00
Filed: 1987-06-29
Granted: 1991-04-23
Abstract: METHOD AND APPARATUS FOR CONTROLLED REMOVAL       AND INSERTION OF CIRCUIT MODULES           An electronic circuit board electrically connected to other circuits of a data processing system by means of a bus, may be removed and re-inserted in the system without the necessity of disabling other circuits connected to the bus.  A latch actuated switch provides a control signal in anticipation of circuit board removal. The control signal activates a finite state machine which seizes control of the bus after completion of any current bus communications and stops the generation of clock pulses normally required in bus communications.  This prevents other circuits from accessing a bus and also prevents extraneous pulses which may occur on the bus during removal of the circuit pack from propagating to other circuits connected to the bus.  When the bus has been disabled, the state machine causes a signal to be sent to power supply circuitry which responds by removing power from the board to be removed.  When contact is physically broken between the board and its corresponding connector, an open circuit condition is sensed by the finite state machine causing it to restore the bus clock pulses and to relinquish control of the bus.  When a board is to be inserted in an open connector, the latch will be in the operated position and a closed circuit condition will result upon contact of the board with the connector. This condition is sensed by the finite state machine which will cause the bus to be seized and the bus clock pulses to be temporarily inhibited.  When the board is fully inserted and the latch is closed, a signal will be sent through the switch to power supply circuitry to apply power to the newly inserted board.  Furthermore, the finite state machine will restore the bus clock pulses and relinquish control of the bus.
Patent CA-1279284-C (CA)
Inventor: PERRIN JEAN
IPC: B61B11/00
Filed: 1987-07-15
Granted: 1991-01-22
Abstract: Un dispositif de liaison entre un câble tracteur et un cycle, applicable notamment aux remonte-pente pour assurer la remontée, en dehors de la saison hivernale, de cycles ou engins similaires et notamment de cycles tout terrain utilisés pour in pratique du vélocross et du vole de randonnée, comporte une partie tractrice (4) qui est reliée au câble tracteur général (2), par l'intermédiare d'un dispositif régulateur de tension (6), et une partie tractée (5) reliée au cycle. Pour permettre la traction du cyle en toute sécurité il est prévu un dispositif d'accouplement (3) entre les deux parties tractrice (4) et tractée (5) , à accrochage automatique par engagement rie l'une de ces deux parties dans l'autre et à déclenchement soit à l'initiative du cycliste par l'intermédiaire d'un câble soit automatique lorsque l'axe de traction s'écarte du plan axial vertical et longitudinal du cycle. (Figure 1).
Patent CA-1289527-C (CA)
Inventor: TOJO KENJI
IPC: F04B27/10
Filed: 1987-07-27
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE         The variable capacity swash plate compressor of the present invention includes a rotary swash plate having an eccentric mass located opposite to the driving point of the swash plate with respect to the axis of the same.  The mass distribution in the rotary swash plate is established such that, within a range in which the piston stroke is less than a predetermined value, a moment about a pivot point produced by the rotation of the swash plate becomes larger than a moment produced by the reciprocating motion of pistons, piston rods and the like and acting upon the swash plate, while, within a range in which the stroke is larger than the pre-determined value, the former moment becomes smaller than the latter moment.  Accordingly, it is possible to provide a compressor of the type in which its capacity control characteristics are improved over a wide shaft speed range.
Patent CA-1278342-C (CA)
Title: Methods and apparatus for measurement of electronic properties of geological formations through borehole casing
Inventor: VAIL WILLIAM B III
IPC: G01V11/00
Filed: 1987-11-03
Granted: 1990-12-27
Abstract: ABSTRACT            The invention provides methods and apparatus for measurement of electronic properties such as the resistivities, polarization phenomena, and dielectric constants of geological formation  and cement layers adjacent to cased boreholes.  Current is passed from an electrode in electrical contact with the interior of the borehole casing to an electrode on the surface of the earth.  Two or more pairs of voltage measuring electrodes which are in electrical contact with the interior of the casing provide at least two voltage outputs which are subtracted to provide a differential voltage output which in turn provides a measurement of the differential current conducted into formation in the vicinity of said electrodes.  A calibration and nulling procedure is presented which minimizes the influences of variations in the thickness of the casing and in variations of electrode placements.          A.C. currents passed from the downhole electrode to the surface electrode provide measurements of the resistivities of the adjacent geological formations.          Such measurements also provide an indication of the presence or absence of cement exterior to the casing.          Transient measurements of the differential voltage response to passage of transient current into formation provide measurements of polarization phenomena and the capacitance of the casing in contact with the geological formation which provides a measurement of the dielectric constant of the adjacent geological formation which in turn allows the computation of the amount of oil and gas in place if the porosity is known.  Other transient measurements provide information concerning the lithological characteristics of the formation such as the presence or absence of clays.  Measurements while drilling (MWD) can also be performed through the drill pipe attached to the drill bit in open holes.
Patent CA-1295484-C (CA)
Title: Greenhouse structure
Inventor: SPRUNG PHILIP D
IPC: A01G9/14
Filed: 1987-12-24
Granted: 1992-02-11
Abstract: ABSTRACT OF THE DISCLOSURE          A  greenhouse  structure  for  growing  plants  using nutrient feed solution.  The structure comprises a plurality of elongated greenhouse production areas.  Each area has a shell and a base enclosing a predetermined space within which plants are grown.  The areas radially extend outwardly from a central supply area in which nutrient feed solution is supplied to the production areas is kept.  The base of each of the production areas  are  sloped  upwardly  in  the  direction  away  from  the central  supply  area  so that  excess  nutrient  feed  solution passing to the production areas will return by gravity flow to the central supply area.  The structure further provides pump and conduit means  to supply nutrient feed solution from the central supply area to the production areas.  The conduit means are sloped to return by gravity flow excess nutrient from the production areas  to  the  central  supply area.   The  structure according   to   the   present   invention  provides   for   easy maintenance   increased   hygiene   (through  drainage   of   any non-processed water from the production zone on a continuous basis)  and  increased  security  (through  collection  of  any nutrient solution or water in the system if required and quick detection and repair of any leaks).
Patent CA-1295133-C (CA)
Title: Dilution valve
Inventor: WOOD TIMOTHY M
IPC: B01F15/04
Filed: 1988-01-27
Granted: 1992-02-04
Abstract: ABSTRACT            Title:  Dilution Valve A dilution valve dilutes a liquid feed concentrate with water, to give a dilute feed for feeding to piglets.  The valve has a plunger (20) which reciprocates within a mixing chamber (66), to which the water and liquid feed concentrate are admitted through separate valves (48,70). Water pressure drives the plunger (20) in a charging stroke, during which water and liquid feed concentrate are admitted to the mixing chamber (66).  A change-over spring (60) causes the plunger (20) to change from a charging stroke to a delivery stroke, during which dilute feed is delivered, the plunger (20) undergoing alternate charging and delivery strokes driven by the pressure of the incoming water.
Patent CA-1287998-C (CA)
Title: Sectional-type door
Inventor: JUNEAU PIERRE
IPC: E06B3/12
Filed: 1988-02-05
Granted: 1991-08-27
Abstract: ABSTRACT OF THE DISCLOSURE         The disclosure herein describes a sectional type door formed of a plurality of adjacent hingedly connected sections; each section comprises a core of insulating material and,  a pair  of  spaced elongated metal panel members adhesively bonded to the opposite main surfaces of the core.  The top and bottom edges of the panel members define respective tongue and recessed areas with the tongue  area being  insertable  in the recessed area of an adjacent section.   One  or more U-shaped retaining members are mounted to the top and bottom edges of the core and serve as retaining members for the top and bottom edges of the panel members.  The configuration of the top and bottom edges of the panel members is such as to provide minimum air infiltration while allowing relative movement between two adjacent sections.  The metal panel members are somewhat larger than the core member thereby defining  opposite  end cavities in which are received wood stiles.
Patent CA-1298077-C (CA)
Inventor: SHARPLESS JOHN
IPC: B05B5/053
Filed: 1988-02-22
Granted: 1992-03-31
Abstract: IMPROVED PARTICLE SPRAY GUN                          ABSTRACT         An electrostatic particle spray gun having, in one preferred embodiment, a conical deflector of insulative material mounted in the nozzle in the particle path for forming a conical particle spray pattern.  A resistive sheet connected to a high voltage electrostatic supply is sandwiched between the forward and rearward ends of the deflector, leaving only the perimeter of the sheet exposed at the periph-eral region of the conical deflector.  The perimeter of the resistive sheet functions as a multi-point circular electrode for charging the particles such that improved coating transfer efficiencies are achieved.  Also, because of the resistive nature of the resistive sheet, the sheet constitutes a resistor in the electrical current path between the center of the sheet where it connects to a high voltage terminal and the circular periphery of the sheet which serves as the multiple point charging electrode, thereby minimizing unsafe electrical discharges should the electrode inadvertently approach a grounded object.
Patent CA-1328723-C (CA)
Title: Method for the continuous in-line contour edge molding of extruded plastic products and pattern roll for practicing such method
Inventor: ROBBINS EDWARD S III
IPC: B29C48/07
Filed: 1988-02-24
Granted: 1994-04-26
Abstract: ABSTRACT      A method of forming a plastic product having contoured peripheral edges molded in a continuous in-line manner is described.  A bounded recessed region is defined on at least a portion of a pattern roll's cylindrical surface.  The pattern roll is then rotated in opposition to a platen roll so as to define a nip therebetween.  Discrete volumetric portions of the recessed region are thus sequentially continuously presented at the nip upon rotation of the pattern roll.  A molten thermoplastic is simultaneously extruded into the presented volumetric portions.  Thus, this extrusion/rotation causes the thermoplastic material to fill the presented volumetric portions of the defined region, which filled portions will eventually form an outline of the plastic product and will, moreover, cause the thermoplastic material to be flowably compressed in the defined nip.  This compression, in turn, allows the contoured edges to, in effect, be molded for each sequential volumetric presentation of the bounded region.  Pattern rolls for practicing this method and a method of forming the same are also disclosed.
Patent CA-1299036-C (CA)
Title: Flame arrestor and method of manufacture
Inventor: GAUL ALAN R
IPC: A62C4/00
Filed: 1988-03-24
Granted: 1992-04-21
Abstract: FLAME ARRESTOR AND METHOD OF MANUFACTURE     ABSTRACT     The invention teaches a method of spacing the elements of a flame arrestor and securing that spacing in a simple and economical manner.  A shim is used to space the elements, the elements are welded together And the shim is removed.  This leaves a controlled flow path between the elements but the spacing is such to prevent the propagation of a flame through the arrestor.
Patent CA-1292419-C (CA)
Title: Band feeding and tightening apparatus for strapping machine
Inventor: FUJII KENJI
IPC: B65B13/18
Filed: 1988-04-11
Granted: 1991-11-26
Abstract: ABSTRACT      The present invention comprises a touch roller for bringing a band into face contact with the outer peripheries of a reverse roller or a tension roller for tightening the band around an article to be strapped, especially in an apparatus for feeding and tightening the band of a strapping machine; and an annularness like member which is harder and has a resistance smaller than an elastic body and which is projected from the outer periphery of the elastic body having a large friction resistance on the outer peripheries and/or the reverse roller and/or the tension roller.          Because the band fed by the feed roller travels around the annularness like member having a small friction resistance projected on the outer periphery of the reverse roller or the tension roller with the surface of the band being brought into contact with the annularness like member, the band is smoothly fed regardless of the direction of rotation of the reverse roller or the tension roller and whether the state of the roller is free or stationary.  In tightening the band, accordingly, the annularness like member which is harder than the elastic body on the outer periphery of the reverse roller or the tension roller is embedded in the elastic body, such that the elastic body having a large friction resistance and the touch roller are brought into compressive contact with the band and caused to rotate thereby performing firm tightening.
Patent CA-1319032-C (CA)
Inventor: SLOCUM ALEXANDER H
IPC: F16H25/24
Filed: 1988-07-19
Granted: 1993-06-15
Abstract: Abstract In a system that includes a linearly movable carriage or the like, a mechanism to convert rotary motion of a leadscrew to linear motion of a nut and, hence, linear movement of the carriage to which the nut is mechanically secured. The leadscrew has a special threadform and the nut has a special threadform that matches the threadform of the leadscrew with a pressurized fluid interface therebetween, there being both axial clearance and radial clearance sufficient to accommodate angular and lateral misalignment between the leadscrew and the carriage. Shallow independent grooves or passages are distributed along the length nut's helical threadform to equalize air pressure therealong and orifices are provided to the grooves or passages to permit introduction of high pressure air or other fluid thereto. Exhausts are provided from the region of clearance between the leadscrew threadform and the nut threadform. Both threadforms are ideally in the form of square threads.
Patent CA-1337772-C (CA)
Title: Air fryer
Inventor: ERICKSON CHAD S
IPC: A47J39/00
Filed: 1988-08-30
Granted: 1995-12-19
Abstract: Disclosed is a cooking device including a base member, a top member and a powered heater.  The powered heater is disposed in an opening defined in the upper surface of the top.  The base and the top may be hingedly interconnected.  The powered heater pro-vides air currents at a very high velocity to rapidly cook food materials.  The motor and heater are easily removed for cleaning.
Patent CA-1280718-C (CA)
Inventor: SCHNEIDER BERNARDUS J J A
IPC: B65D39/00
Filed: 1988-09-15
Granted: 1991-02-26
Abstract: ABSTRACT OF THE DISCLOSURE           A stopper for a bottle or similar type container adapted to have a pump device mounted thereon comprises a shaft having an axis for the stopper.  The stopper is adapted to fit in clamping and sealing relation inside the neck of a bottle and has a channel therethrough provided with a mem-brane type non-return valve.  The stopper has a portion out-side the neck of the bottle when positioned in the neck of the bottle which is adapted to receive in clamping relation a suction pressure pump device.  The stopper and membrane valve are integral and made of the same elastic  material, and the membrane valve has a slit with cooperating elastic parts on opposite sides thereof of the same material as said stopper. The membrane valve is positioned to close the channel, and the portion of the stopper adapted to receive the pump device has a radially extending circumferential flange extending outside the neck of the bottle when mounted thereon and being perpendicular to the axis of the stopper and adapted to rest upon the neck of a bottle.  The portion of the stopper has a circumferential ridge concentric with the circumferential flange and has a diameter smaller than the outer diameter of the circumferential flange.  The ridge has an outer conical side face tapering away from the circumferential flange to-wards the axis of the stopper, the circumferential flange surrounding the membrane valve which together with the cir-cumferential flange may sealably receive a pump device.
Patent CA-1284143-C (CA)
Inventor: HONEGGER WERNER
IPC: B65H29/00
Filed: 1988-09-27
Granted: 1991-05-14
Abstract: INVENTION: APPARATUS FOR WINDING AND UNWINDING FLEXIBLE FLAT          PRODUCTS, ESPECIALLY PRINTED PRODUCTS, ARRIVING CONTINUOUSLY, ESPECIALLY IN IMBRICATED FORMATION                 ABSTRACT OF THE DISCLOSURE           The winding station comprises two support wheels rotatably journalled in a frame and which are constructed as friction wheels of a friction wheel drive arrangement.  These support wheels are driven by a drive motor through a winding transmission in a common sense of rotation.  These support wheels are in inner contact with an annular friction wheel which performs the function of a winding core.  This friction wheel comprises a cylindrical rim whose exposed inner surface is constructed as a traction surface by means of which the winding core rests upon the support wheels.  Side flanges protrude from the cylindrical rim to laterally delimit the traction surface and serve for lateral guiding.  A guide wheel which can be advanced into engagement with the traction surface of the winding core and retracted therefrom is arranged beneath the support wheels.  The coupling of the winding core to the winding station and the decoupling of the winding core from the unwinding station is performed in simple manner by depositing the winding core upon the support wheels, respectively by lifting the winding core off the support wheels.  The winding core is simple in construction and economical in fabrication.
Patent CA-1307058-C (CA)
Title: Vandal-proof seat
Inventor: ASKEW TERRY
IPC: A47C7/26
Filed: 1988-11-02
Granted: 1992-09-01
Abstract: ABSTRACT     A mesh for incorporation in a seat cushion, the mesh having a plurality of wire lengths with each wire length being wound to follow a generally helical path so that each wire provides a plurality of convolutions, the mesh being provided with mesh parameters so as to inhibit penetration and cutting.