baber/WOPTO huggingface dataset:
Patent CA-1331208-C (CA)
Title: Piezoelectric nerve guidance channels
Inventor: AEBISCHER PATRICK
IPC: A61B17/00
Filed: 1988-03-09
Granted: 1994-08-02
Abstract: Abstract of the Disclosure Medical devices and methods employing piezoelectric materials, such as polyvinylidene fluoride (PVDF) and other biocompatible piezoelectric polymers, are disclosed for use as guidance channels in regenerating nerves.  The devices can be formed by a tubular piezoelectric membrane adapted to receive the ends of a severed or damaged nerve.  The tubular conduit defines a lumen through which axons can regenerate to restore motor and/or sensory functions.  The piezoelectric materials generate transient electrical charges upon mechanical deformation which augment the ability of axons to bridge the gap between the proximal and distal nerve stumps.
Patent CA-1331618-C (CA)
Inventor: TAKEKOSHI TOHRU
IPC: C08G73/10
Filed: 1988-05-05
Granted: 1994-08-23
Abstract: METHOD FOR MAKING ORGANOBIS(THIOETHER)S, AND PRODUCTS OBTAINED THEREFROM              ABSTRACT OF THE DISCLOSURE A method is provided for making organobis(thioether)s which include bis(thioetherimide)s and bis(thioetherahhydride)s. There is also provided alkylene bis(thioetherimide)s and the corresponding dianhydrides thereof which can be used to make crystalline polyimides.
Patent CA-1283836-C (CA)
Title: Fluid control valve
Inventor: DULL DAVID A
IPC: B60K17/356
Filed: 1988-05-25
Granted: 1991-05-07
Abstract: ABSTRACT A fluid control valve for controlling the flow of hydraulic fluid at a high pressure from a primary pump and the flow of the hydraulic fluid at a low charge pressure from a charge pump to cam-lobe type hydraulic motors which are used to assist in driving a vehicle.  When energizing the motors, charge pressure is first delivered to the motors. Thereafter, all of the supply and return lines leading to the motors and to the primary pump and the charge pump are connected together to further increase the pressure delivered to the motors.  Finally, the charge pressure line is disconnected and the supply and return lines leading to the motors are connected to the high pressure supply and return lines leading to the primary pump.  When the supply and return lines leading to the motors are disconnected from the primary pump, the lines leading to the motors are drained into a reservoir.  An accumulator is provided within the motors to absorb sudden pressure delivered thereto.  Notches are placed on the spool for further gradually introducing the high pressure fluid to the supply and return lines of the motors.  The flow of charge pressure fluid which controls the shifting of the spool is restricted by an orifice to control the rate of shifting and to provide sufficient time for gradually introducing the high pressure to the motors.
Patent CA-1302040-C (CA)
Title: Assembly of two interconnected similar plastic planks and a framework
Inventor: WANG CHEH
IPC: E04B2/72
Filed: 1988-06-27
Granted: 1992-06-02
Abstract: ABSTRACT OF THE DISCLOSURE     An  improved assembly includes a  framework,  two interconnected similar plastic planks,  and a  fastener for attaching  the  planks  to  the  framework.    The improvement  wherein each of the planks includes an  L-shaped  outwardly projecting plate on a  side  thereof and  U-shaped  projecting  plate on the  opposite  side thereof.   The L-shaped projecting plate of one of  the planks   can  be  held  within  and  on  the  U-shape projecting plate of the other of the planks to  provide a water-proof effect when the planks are interconnected side  by side.   A U-shaped cover is sleeved on the  U-shaped  projecting plate so as to provide an additional water-proof effect.
Patent CA-1305042-C (CA)
Title: Cutting torch having poppet metered cutting oxygen flow control valve
Inventor: GOULET RICHARD
IPC: F23D14/42
Filed: 1988-07-13
Granted: 1992-07-14
Abstract: ABSTRACT OF THE DISCLOSURE    A cutting oxygen flow control valve in a cutting torch has a poppet movably positioned in a cutting oxygen passageway upstream of a valve seat.  The poppet has openings at a downstream end of the cylindrical wall thereof so that these openings are exposed upon movement of the poppet as a manually controlled diaphragm lifts off the valve seat.  The progressive exposure of the openings provides for cutting oxygen flow past the valve, thereby producing a desired progression in the flow rate.
Patent CA-1310474-C (CA)
Title: Wire connector
Inventor: MCCLISH ARTHUR W
IPC: F16L3/12
Filed: 1988-07-18
Granted: 1992-11-24
Abstract: Title Wire Connector Abstract of the Invention A  system  of  wire  connectors  fixedly  secured  to  a tubular  hydraulic  brake  hose  member  in  a  vehicular assembly.   In  a  preferred  form,  the  connectors  are uniformly spaced along the tubular member, each connector having  a  main  body  portion  injection  molded  to  the tubular member.   Each connector has a pair of flexible retaining  tabs  spaced  circumferentially apart  from one another and extending generally radially of the main body portion.  Each pair of tabs defines a generally circular wire receiving opening of a diameter substantially equal to  that  of  the  wire  member  intended  to  be  secured therein.  The tabs further define a pair of flexible arms which provide snap-fittable engagement and removal of the wire member with respect to the opening.
Patent CA-1288878-C (CA)
Title: Timing and carrier recovery in tdma without preamable sequence
Inventor: MCNICOL JOHN D
IPC: H04L27/227
Filed: 1988-08-15
Granted: 1991-09-10
Abstract: TIMING AND CARRIER RECOVERY IN TDMA                  WITHOUT PREAMBLE SEQUENCE     Abstract of the Invention The present invention provides a method of detecting the clock rate and recovering the carrier in a TDMA (time division multiple access) signal.  The quadrature baseband components are stored for a predetermined amount of time as sampled data and the clock rate error of the baseband samples are estimated.  The clock phase of the baseband samples are corrected from the estimated clock phase error by using interpolation over the sampled quadrature components. The carrier phase error of  the stored baseband time corrected quadrature samples are then estimated and the carrier phase is corrected according to the estimated phase error.  The corrected clock and carrier signals are then forwarded to decision circuit means for providing demodulated data.
Patent CA-1329452-C (CA)
Title: Flame resistant organic substances containing polymeric flame retardants
Inventor: PARR WILLIAM J
IPC: C08G61/00
Filed: 1988-08-19
Granted: 1994-05-17
Abstract: Abstract of the Disclosure A flame resistant organic substance has an organic sub-stance and a particular flame retardant compound in intimate contact therewith.  The flame retardant compound is a polymeric compound containing aromatic rings connected by alkyl moieties and is defined by a structural formula.  The formula is the following.         [A]              wherein each X is independently Cl or Br, preferably Cl; each Z is independently Cl, Br, or H, preferably H; and n is suffi-ciently high that the compound will be sufficiently nonvolatile that it is capable of retarding the tendency of an organic sub-stance to flame.
Patent CA-1309199-C (CA)
Title: Bit gating for efficient use of rams in variable plane displays
Inventor: BUTLER NICHOLAS D
IPC: G09G1/02
Filed: 1988-10-05
Granted: 1992-10-20
Abstract: BIT GATING FOR EFFICIENT USE OR RAMS IN VARIABLE PLANE               DISPLAYS     ABSTRACT OF THE DISCLOSURE           Apparatus for serializing 2M parallel outputs of an all points addressable memory into successive data groups, each data group corresponding to a respective value for a pixel in an image wherein the bit-length of the pixel value is se-lectable, the apparatus comprising:  a gate circuit having (i) 2M parallel input junctions connected to the outputs of the memory and (ii) 2N output junctions, wherein the gate circuit selectively converts each set of 2M parallel inouts at said input junctions into 2M-n successive data groups, each group having a bit-length of 2n bits, wherein each group is transmitted to 2n of the 2N out put junctions; and a communi-cation element for conveying to the gate circuit a signal which controls the bit-length 2n of data groups, wherein n is an integer 1 ? n ? N ? M.
Patent CA-1295435-C (CA)
Title: Announcement storage system for telephone answering machines
Inventor: KERN RONALD J
IPC: H04M1/65
Filed: 1988-10-18
Granted: 1992-02-04
Abstract: Abstract of the Disclosure A telephone answering machine having solid state storage of an outgoing announcement (OGA) is improved by magnetic tape apparatus 120 for Providing backup Protection of the OGA in the event of a Power failure. Also stored on the magnetic tape is the time duration of the OGA.  Analog to digital conversion of the OGA, for storage in Dynamic Random Access Memories 210, 220 and 230, proceeds at a sampling rate that is inversely proportional to the time duration of the OGA to assure that the available memory space is fully utilized.
Patent CA-1284111-C (CA)
Inventor: RUHNKE JEFFREY P
IPC: F01N13/00
Filed: 1988-12-15
Granted: 1991-05-14
Abstract: Abstract of the Disclosure In a marine propulsion system including an internal combustion engine, a mixing tube assembly is disposed between an exhaust manifold and a discharge pipe for discharging mixed water and exhaust.  The mixing tube assembly is adapted for connection to the exhaust manifold by means of a resilient connector member, such as a flanged rubber boot.  This form of connection allows the adjacent surfaces of the mixing tube and the manifold to be non-machined, and provides suspension of the mixing tube from the manifold.  The mixing tube includes an exhaust passage having a water jacket therearound for cooling exhaust passing there-through.  A water inlet is provided for introducing water into the water jacket.  Water is discharged from the water jacket through a circumferential water discharge outlet, and exhaust is discharged from the exhaust passage through an exhaust outlet.  A mixing cavity is disposed downstream of the water jacket and the exhaust passage for receiving discharged water and exhaust and mixing the water with the exhaust prior to discharge through a discharge outlet.
Patent CA-1303703-C (CA)
Inventor: GRIESMAR RENE A
IPC: F04B49/06
Filed: 1988-12-16
Granted: 1992-06-16
Abstract: The invention relates to a flow rate regulating system for a dosing pump comprising a pumping unit (8) harnessed to a transmission unit (4) converting the rotary motion of a reversible drive motor (1) into an alternating movement for the pumping unit, comprising means of regulating the extent of the alternating movement and means of regulating the frequency of that movement. The means of regulating the extent of the alternating movement comprise:
 -  a displacement sensor (23) for the transmission unit (4) emitting a value as a function of the extent of the displacement,
 -  a comparator (21) for comparing the said value to an adjustable control value (20) emitting a parity signal on its output,
 -  an electronic control circuit (24) which, in response to the parity signal, on the one hand switches the supply to the motor (1) in order to reverse its direction of rotation and on the other hand activates means (22) of detecting the return of the transmission unit to a starting position.
 -  these means of detection (22) emitting a signal to the electronic circuit when the starting position is reached, in response to which the electronic circuit (24) controls the interruption of the supply to the motor (1), whilst the means of regulating the frequency of the movement comprise a pulse emitter (28) sending pulses to the electronic circuit (24), in response to which the latter establishes the supply to the motor (1) in order to move the transmission unit (4) from the said starting position. 
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Patent CA-1327932-C (CA)
Inventor: SCHMID KARL H
IPC: C11D1/72
Filed: 1989-01-11
Granted: 1994-03-22
Abstract: ABSTRACT OF THE DISCLOSURE            The   invention   is  cleaning   compositions   containing Polyethylene-glycol ethers of the formula R1-(CH2CH2O)n-R2     (1) in which R1   is a straight-chain or branched alkyl- or alkenyl radical having from 20 to 28 carbon atoms R2   is an alkyl radical having from 4 to 8 carbon atoms and n    is an integer from about 6 to about 20 as a foam-suppressing additive.  The cleaning compositions are stable over a broad temperature range and have low foaming characteristics particularly at about ambient temperatures.
Patent CA-1332402-C (CA)
Inventor: LE VAN MAO RAYMOND
IPC: C10G35/095
Filed: 1989-02-21
Granted: 1994-10-11
Abstract: TITLE          CATALYTIC AROMATIZATION OF OLEFINS AND PARAFFINS                      INVENTORS                RAYMOND LE VAN MAO              LOUISE DUFRESNE              ABSTRACT OF THE DISCLOSURE           An aromatization catalyst is obtained by physical mixing of a pentasil type zeolite, for example H-ZSM-5 and a zinc oxide-alumina co-precipitate.  The weight ratio of the zeolite to the co-precipitate ranges from 4.3 to 28.3.  The Zn/Al atomic ratio in the co-precipitate may range from about 0.16 to 25Ø  The composite catalyst yields greater amounts of aromatics, particularly BTX aromatics, when contacted with an olefinic and/or paraffinic feedstock than the respective zeolite alone.
Patent CA-1334396-C (CA)
Inventor: GRANGER MAURICE
IPC: B65H37/06
Filed: 1989-03-02
Granted: 1995-02-14
Abstract: A dispenser for dispensing discrete lengths of longitudinally corrugated strips of wiping web material from a source of uncorrugated continuous length wiping material. In the device the web material is payed through and between converging longitudinally disposed projections whereby the corrugations are formed. The corrugated web is then fed between cogwheels, then to an egress part of the dispenser through which the web projects for a distance. The cogwheels may be provided with a severing means. To dispense the web projecting from the dispenser it is pulled outwardly resulting in obtaining a desired severed length of wiping material.
Patent CA-1332186-C (CA)
Inventor: BROWN DAVID B
IPC: H04L12/437
Filed: 1989-04-11
Granted: 1994-09-27
Abstract: METHOD AND APPARATUS FOR IDENTIFYING LOCATION OF A LOST TOKEN SIGNAL IN A DATA COMMUNICATION NETWORK   Abstract Apparatus and method for identifying the location of a lost token signal continuously transmitted on transmission paths interconnecting nodes of a network to sequentially enable the nodes to write data onto the network. The arrival of the token signal at each node is recorded in counter states of a token track counter corresponding with the node. The recorded binary counter states are compared upon the failure of the token signal to arrive at a node to detect mismatches and transitions occurring between adjacent nodes counter states identifying the network location of the lost token signal.
Patent CA-1277455-C (CA)
Inventor: PERRY GARY L
IPC: E04H4/08
Filed: 1989-04-20
Granted: 1990-12-11
Abstract: A STRUCTURALLY STRONG, NON VAPOR, NON MOISTURE ABSORBING, SPA/HOT TUB COVER                       ABSTRACT    A spa/hot tub cover is structurally strong to essentially completely cover an opening of a spa/hot tub except for a limited vent, and withstand a person's weight.  In so doing the spa/hot tub cover itself will not absorb vapor, moisture, or water, and thereby not become heavier because of the containment of moisture.  The interior of the spa/hot tub cover has several barriers to any possible absorption of vapor, moisture, or water, whereby, if an outside or outer barrier is punctured, only a small quantity of vapor, moisture, or water, will be absorbed. At a central portion of this cover, commencing from the top and continuing on down through to the bottom, the following layers of an overall lamination are:  a top weatherable plastic; a contact cement serving as a sealant and adhesive; an expanded polystyrene shaped to define the shape of the spa/hot tub cover; a contact cement serving as a sealant and adhesive; a polypropylene scrim foil; a contact cement; a closed cell foam of polyethylene; and then a bottom polyester fabric reinforced polyvinylchloride.  The laminations of this central portion continue on to the periphery of each spa/hot tub cover.  Where subsequent fasteners may be received, aluminum angles are selectively positioned about this periphery.  The polypropylene scrim foil continues up and over the periphery of these laminations.  The bottom polyester fabric reinforced polyvinylchloride also continues up alongside the periphery of these laminations.  A vinyl angle is adhered about the top corner of the periphery of the e laminations having a leg horizontally overlapping the periphery edge of the weatherable plastic and having a leg vertically overlapping the upturned portions of the polyester fabric reinforced polyvinylchloride. A sealing bead is located where the horizontal overlapping leg of the angle is positioned on the top weatherable plastic and where the vertical overlapping leg of the angle is positioned on the polyester fabric reinforced polyvinylchloride, thereby completing the assembly of this structurally strong, non vapor, non moisture absorbing, spa/hot tub cover.  This cover in various embodiments has a sloping water draining top surface, has multiple sections, has hinges, has handles, and/or has gas spring actuators used during removal and replacement.
Patent CA-1319559-C (CA)
Title: Method of treating liquid egg and egg white with microwave energy to increase refrigerated shelf life and the product produced thereby
Inventor: HUANG FRANK
IPC: A23L15/00
Filed: 1989-05-31
Granted: 1993-06-29
Abstract: METHOD OF TREATING LIQUID EGG AND EGG WHITE WITH MICROWAVE ENERGY TO INCREASE REFRIGERATED SHELF LIFE AND     THE PRODUCT PRODUCED THEREBY                             ABSTRACT     A method of treating liquid egg white and liquid whole egg and the product obtained thereby which comprises subjecting the liquid egg white or the liquid whole egg to microwave energy for a time sufficient to inactivate or destroy a sufficient amount of micro-organisms contained therein without significantly reducing the egg protein functionality so as to prevent extended shelf life of the egg white or whole egg.
Patent CA-1329497-C (CA)
Inventor: BLESSING MARTIN G
IPC: F16H48/30
Filed: 1989-06-05
Granted: 1994-05-17
Abstract: ABSTRACT A vehicle differential includes a clutch assembly and a hydraulic actuator for selectively preventing relative rotation between a pair of vehicle half axles.  The differential assembly has an outer housing rotatably mounting a gear case and ring gear therein.  A planetary gear assembly is coupled between the gear case and one half axle.  The planetary gear assembly is also coupled to a sun gear which in turn is coupled to the other half axle.  The clutch assembly is coupled between the gear case and the sun gear. An annular manifold is fixedly mounted in the outer housing and sealingly engages an outer surface of the gear case for supplying pressured hydraulic fluid to actuate a piston in a cylinder formed in the gear case which in turn actuates the clutch assembly.  The pressure of the hydraulic fluid determines a range of torque differentials for which the clutch assembly will prevent relative rotation between the half axles.
Patent DK-157392-C (DK)
Inventor: NOAKES TIMOTHY JAMES
IPC: B05B5/025
Filed: 1983-08-22
Granted: 1990-05-28
Abstract: An electrostatic pump comprises a body having upstream and downstream chambers insulated from each other, and joined by constricted channel, adjacent the upstream mouth of which is the sharp conductive tip of an injection electrode. The channel around the conductive tip is shaped to promote laminar non-turbulent liquid flow past the tip, under the influence of a high potential difference between the injection electrode and a discharge electrode in the downstream chamber.
Patent DK-155707-C (DK)
Inventor: SCHENSTROEM INGA-LENA
IPC: A47K/
Filed: 1985-09-06
Granted: 1989-09-25
Abstract: PCT No. PCT/SE85/00006 Sec. 371 Date Sep. 10, 1985 Sec. 102(e) Date Sep. 10, 1985 PCT Filed Jan. 9, 1985 PCT Pub. No. WO85/02990 PCT Pub. Date Jul. 18, 1985.Sitting bathtub constituted by a tub (10) provided with an opening (11) extending almost down to the bottom of the tub and a hatch (15) to close this opening. When closing the bathtub before having a bath the hatch (15) is placed on the inside of the bathtub and the hydrostatic forces of the water forces the hatch against the edges of the opening where a seal is provided on the hatch. The sides and in particular the side with the opening are inclined or sloped outwards from the bottom so that the hatch with its seal will rest by its own weight against the seal. In particular seal (16), hatch (15) and the side of the bathtub are so arranged that a good sealing effect is always certain at the bottom of the bathtub when the rising water and the resulting hydrostatic pressure enable the sealing effect to climb upwards even on a light and slightly flexible hatch. This in turn enables the hatch to be very light and easy to handle and it is thus no inconvenience to have a loose hatch. The hatch is suitably transparent or clear.
Patent DK-157341-C (DK)
Inventor: GIVLER JOHN D
IPC: F16K11/078
Filed: 1982-11-22
Granted: 1990-05-14
Abstract: A mixing valve utilizes a sleeve having hot and cold water inlet ports and outlet ports therein. A valve member is reciprocal and rotatable within the sleeve to control the temperature and volume of water passing through the outlet ports. There are port seals positioned in the sleeve hot and cold water inlet ports, which port seals are in sealing contact with the valve member and have openings therein through which pass the inlet water flow of the valve. The cold water port seal opening has a cross sectional area less than that of the hot water port seal opening and there is a restricted passage in the cold water port seal controlling the access of water to the cold water port seal opening.
Patent DK-160573-C (DK)
Inventor: BACHMANN LUDWIG
IPC: F16K1/22
Filed: 1983-12-21
Granted: 1991-09-09
Abstract: 1. Shutoff flap, comprising one one-piece metallic housing (1), the entire interior area of which is provided with an elastomer coating (13), a centrally supported metallic flap disc (5), which is within a plastic coating (6), a one-piece actuation shaft (7), which is inserted through the flap disc (5), is connected to the flap disc (5) by means of a drive type fastening (11) and is partly surrounded by the elastomer coating (15) of the housing, an upper and a lower shaft bearing (14, 15) which are located in the housing and serve to accomodate the actuation shaft (7) ; identified by the fact that the flap disc (5) is designed in one piece, that the central metallic piece (8) of the flap disc (5) is cut out in the area of the actuation shaft (7), thus leaving two opposite bearing points (9, 10) in the circumference area of the flap disc (5) for accomodation of the actuation shaft ; that, during the coating process of the flap disc (5), the cutout (8) is completely filled with the plastic (6), and that in the area of the two shaft bearings (14, 15) passage ports are (17) provided in the housing for fluid elastomer ; these ports running in the direction of the axis of the acutation shaft (7) so that the fluid elastomer flows around the shaft bearings (14, 15) during the coating process of the housing (1) and covers the shaft bearings.