baber/WOPTO huggingface dataset:
Patent CA-1292548-C (CA)
Inventor: WILT DANIEL P
IPC: H01S5/12
Filed: 1987-03-16
Granted: 1991-11-26
Abstract: PRESERVATION OF SURFACE FEATURES ON SEMICONDUCTOR SURFACES Abstract The integrity of surface structural features (e,g., distributed feedback gratings) in Group III-V compound semiconductors is preserved during heating (e.g., subsequent LPE regrowth) by a thin coating containing a transition metal (e.g., Os, Ru or Rh). DFB-DCPBH InP/InGaAsP single frequency lasers made in this way are also described.
Patent CA-1295365-C (CA)
Inventor: DUNCAN WOOTEN E
IPC: H01M50/469
Filed: 1987-04-01
Granted: 1992-02-04
Abstract: ABSTRACT           The present invention relates to an improved method for  sizing thermoplastic   battery  separators  introduced  into   partially assembled  cells.   The  method comprises  introducing  a  heated sizing punch  under controlled temperature and time conditions to deform the formed thermoplastic separator and to seal  its  seams without degrading the separator material.
Patent CA-1278460-C (CA)
Title: Multitone ink jet printer and method of operation
Inventor: ALLEN ROSS R
IPC: B41J2/21
Filed: 1987-04-07
Granted: 1991-01-02
Abstract: ABSTRACT         This  patent  application discloses a  method  and apparatus  useful for eight-level halftone thermal  ink  jet printing  by  printing with droplets of  ink  with  volumes weighted  in a binary sequence.   Three (3)  binary-weighted drop generators which are fired in sequence are useful in an eight-level,  three  color printing process and additionally may  be employed with a clear ink vehicle drop generator  in order  to reduce optical density of  single small dots  in  a given pixel area to thereby reduce grainyness This  method  and apparatus are also  adapted  for three (3) color number printing with a chosen number of rows and  columns of binary-weighted drop  generators,  including untoned  vehicle  if  desired,  in order  to achieve  color printing of pixels having desired color and optical density.
Patent CA-1331189-C (CA)
Title: Five-membered heterocyclic derivatives of n'-substituted-n, n'-diacylhydrazines
Inventor: HSU ADAM C
IPC: C07D333/38
Filed: 1987-04-13
Granted: 1994-08-02
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to insecticidal compositions containing,  as the active ingredient,  a  five-membered heterocyclic  derivative  of  an  N'-substituted-N,N'-diacylhydrazine, viz. a compound of the formula:        wherein X and X1 are O, S or NR; R1 is branched (C3-C10)alkyl or (C1-C 4)alkyl substituted with one or two (C3-C6)cycloalkyl; one of A and B is unsubstituted or substituted phenyl  and the  other  of  A and B  is  an unsubstituted or substituted 5-membered heterocycle.  The invention also  relates  to  methods  of  using  such compositions,  and  novel  compounds  having  the  above chemical formula, used in the claimed compositions and methods.  The compounds and compositions of the present invention are effective for the control of insects in crops  of cultivated plants  and  in  forestry,  and are especially  effective  against  insects  of  the  order Lepidoptera.
Patent CA-1278014-C (CA)
Inventor: MURRAY JAMES F III
IPC: H02K19/24
Filed: 1987-04-16
Granted: 1990-12-18
Abstract: Abstract An alternator (20) having a rotor (34) which extends obliquely with respect to its axis of rotation between at least a pair of pole pieces (23) having power windings (26) disposed therein with the turns of the windings (26) facing the pivotal axis (32) of the rotor. Upon driving the rotor (34) in rotation, the rotor due to its oblique configuration causes the flux extending with respect to the pole pieces (23) to reciprocate with respect to the pivotal axis (32) and the power windings (26), thereby producing two cycles of alternating current for each rotation of the rotor.  The form of the rotor can substan-tially correspond to a portion of a cylinder having oppositely disposed face portions extending obliquely with respect to the central axis of the cylinder which is substantially coincident with the pivotal axis of the rotor.  The periphery of the rotor thereby generates a cylinderical figure of revolution as the rotor is rotated.
Patent CA-1322551-C (CA)
Title: Thiazinone derivatives
Inventor: GILKERSON TERENCE
IPC: C07D279/06
Filed: 1987-05-05
Granted: 1993-09-28
Abstract: ABSTRACT THIAZINONE DERIVATIVES      The invention provides thiazinone derivatives of general formula I:                                             I   wherein X is O, S or NH, R represents an optionally substituted alkyl, alkenyl, heterocyclic or aryl group, and R1 and R2 each represent a hydrogen atom or together represent a single carbon-carbon bond; a process for the preparation of such compounds; compositions containing them and their use as fungicides.            BK58.001
Patent CA-1287312-C (CA)
Inventor: KULA MARIA-REGINA
IPC: C12N9/80
Filed: 1987-06-26
Granted: 1991-08-06
Abstract: ABSTRACT OF THE DISCLOSURE The present invention relates to a microbiologically produced .alpha.-acetyl-amino-cinnamic acid acylase and to a pro-cess for producing same from Brevi-bacterium species NCIB 12246 or NCIB 12247. The novel enzyme can be used as compo-nent of a coupled enzyme system for enzymatic reactions which proceed via the intermediate stage of .alpha.-imino-.beta.-phenyl-pro-pionic acid and phenyl pyruvic acid.
Patent CA-1270540-C (CA)
Title: Guidance system for farm implements
Inventor: O'NEALL DONALD L
IPC: G08C21/00
Filed: 1987-07-02
Granted: 1990-06-19
Abstract: Abstract of the Disclosure A guidance system for a tractor drawn farm implement for providing an indication to the operator of the tractor as to variance of the implement from a desired course includes a pair of horizontally extending ???ler rods supported by a shaft and having free ends extending in a parallel spaced relation to sense the crop and rotate the shaft if the implement veers off course. A light sensitive photopotentiometer coupled to the shaft has its output voltage varied as a function of the angular position of the shaft. A signal processing circuit responds to variation in the voltage of the light sensitive photo-potentiometer to drive the needle of an analog meter to indicate the direction and amount of deviation of the implement from the desired course, the meter being mounted on the tractor and within the line of sight of the operator.
Patent CA-1291519-C (CA)
Inventor: HAYAFUNE KOJI
IPC: H04N5/72
Filed: 1987-07-17
Granted: 1991-10-29
Abstract: ABSTRACT OF THE DISCLOSURE         A filter for a CRT screen according to the invention is constituted such that a compound sheet consisting of a conductive net and a transparent resin film is molded so as to be closely attached to the CRT screen, and also to avoid the occurrence of moire fringes, the mesh of the net is selected at a suitable value such that the ratio of the pitch of the scanning lines of the CRT and the pitch of the wires of the net does not fall near simple integers or the inverse numbers thereof.   The filter can shut off the electromagnetic waves, electro-static charge, ultraviolet rays, etc. which are generated from the CRT, without spoiling the resolution of the CRT and can substantially prevent adverse influences on the human body by the CRT.    No moire fringes are produced on the screen.    A hard coating treatment and a glare-proofing treatment are further performed, so that an illumi-nation lamps or the like in the room are not reflected from the filter surface.      Therefore,  human operators can continue their work without fatigue of the eyes and without adverse mental influence based on such fatigue.     Further, when the surface of the CRT filter is cleaned or even if a point of pencil or the like accidentally touches the filter surface, no scratching is caused on the surface.
Patent CA-1275243-C (CA)
Title: Digester tank with foam control cover
Inventor: DEVOS JERRY
IPC: C02F1/00
Filed: 1987-08-13
Granted: 1990-10-16
Abstract: ABSTRACT The invention relates to apparatus for carrying out mixed liquid, gas and solid phase reactions and is intended for use in sewage digestion tanks where the removal of sludge and foam from the tanks is required. A reactor vessel is provided which includes a floating cover vertically movably maintained within the vessel.  A device for limiting gas pressure is connected to the vessel below the cover. buoyancy chamber is provided which is supported by the cover and located therebelow and is intended to be at least partially immersed within the liquid in the vessel.  A foam/sludge withdrawal opening is located below the uppermost portion of the buoyancy chamber and connects the interior of the vessel to the exterior. In a preferred embodiment, a ballast member is supported from the cover and extends from the roof to below the buoyancy member.
Patent CA-1310583-C (CA)
Title: Polymeric carrier compositions and methods for their preparation and use
Inventor: WON RICHARD
IPC: A61K31/74
Filed: 1987-09-08
Granted: 1992-11-24
Abstract: POLYMERIC CARRIER COMPOSITIONS AND METHODS       FOR THEIR PREPARATION AND USE  ABSTRACT OF THE DISCLOSURE Polymeric delivery systems for active substances are prepared by suspension polymerization of a porogen and monomer mixture in an immiscible phase, typically an aqueous immiscible phase.  By properly controlling the polymerization conditions and percentage of cross-linking, relatively rigid beads are formed having a non-collapsible pore network containing the porogen.  The porogen is then extracted from the pore network, and an active substance, such as a UV absorbant, and insect repellant, a steroid, an emollient, or the like, is introduced into the beads.
Patent CA-1332341-C (CA)
Title: Semiconductor structures and a method of manufacturing semiconductor structures
Inventor: COOPER DAVID M
IPC: H01S5/227
Filed: 1987-09-22
Granted: 1994-10-11
Abstract: - 27 -ABSTRACT SEMICONDUCTOR STRUCTURES AND A METHOD OF MANUFACTURING SEMICONDUCTOR STRUCTURES In a semiconductor buried heterostructure laser, having a mesa 2, 3, 4 and confinement layers 5, 6, 7 on a substrate 12, at least the lowermost of the confinement layers 5, 6, 7 is substantially planar up to the mesa. This is achieved by MOVPE growth of InP against lateral surfaces of the mesa 2, 3, 4 which are defined by distinct crystallographic planes of the material of the mesa. In particular (111) B InP planes are used. The laser is particularly for use in the field of optical communications.
Patent CA-1304500-C (CA)
Title: Optical-disk driving apparatus
Inventor: NAKATSU KEIJI
IPC: G11B7/09
Filed: 1988-01-05
Granted: 1992-06-30
Abstract: ABSTRACT OF THE DISCLOSURE      An optical-disk reading apparatus has a carriage on which a tracking actuator and a photosensor unit are mounted. They are driven by a head actuator to move a spot of a light beam to traverse tracks on an optical disk.  The photosensor detects first position and second position signals indicative of the position of the spot on the tracks through addition and subtraction of electric signals corresponding to changes in the quantities of light reflected from the tracks upon the movement of the spot. A first waveshaping circuit causes the half wave of the first position signal that is greater than, and the half wave of the first position signal that is smaller than, the mean value of the first position signal to correspond respectively to a rectangular pulse and a zero amplitude signal for each cycle and for converting the pulse and zero amplitude signal into a first shaped position signal delayed for a predetermined time.  A second waveshaping circuit acts in the same fashion on the second position signal.  The shaped position signals ensure accurate placement of the light spot on a desired track of the disk even when the first and second position signals contain omissions.
Patent CA-1303219-C (CA)
Title: Information recording method for recording data and directories in a plurality of blocks comprising divided recording areas
Inventor: IIJIMA KATSUMI
IPC: G11B27/32
Filed: 1988-03-30
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE        A method of recording information on a recording medium comprises the steps of setting a plurality of blocks each having any size in the recording area of the recording medium, and recording data and directories for effecting the control of the data in the same block in each of the blocks.
Patent CA-1313893-C (CA)
Title: Tensile force transmitting device, in particular a lifting device
Inventor: NORLEN HAKAN
IPC: B66C1/66
Filed: 1988-05-06
Granted: 1993-02-23
Abstract: Abstract A traction device, in particular devised as a lifting device,  comprises  a  first  engagement member  (2)  for engagement to a first coupling member, an intermediate portion (5) and a second end portion (6) adapted to form an attachment  loop by the  free  end  (7)  of  the  end portion being by means of a spring loaded locking member (12) releasably locked in a locking mechanism at the end of  the  intermediate portion  adjacent  the  second  end portion. The locking member is by means of a connection arrangement (21)  connected, in a tensile force trans-mitting manner,  to  a  second engagement member  (22), which is adapted for engagement to a second coupling member and which upon being subjected to a tensile force transmits  this  tensile  force  via the  connection  ar-rangement to the locking member and thereby releases the free end of the end portion.
Patent CA-1318745-C (CA)
Title: Polyarylene sulfide composition
Inventor: NITOH TOSHIKATSU
IPC: C08K7/14
Filed: 1988-05-19
Granted: 1993-06-01
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is a polyarylene sulfide resin composition having improved heat resistance and comprising (A) 100 parts by weight of a polyarylene sulfide resin, (B) 0.01 to 5 parts by weight of a fatty acid ester represented by the following formula (1):                              (1) wherein at least one of X1 through X4 stands for a group   and the remainder stands for -H, -OH, an alkyl group or an allyl group, and R stands for an alkyl or alkenyl group having 2 to 30 carbon atoms, and (C) 0 to 400 parts by weight of an inorganic filler. The polyarylene sulfide resin composition is useful for producing shaped articles such as electric and electronic appliances, automobile parts and chemical instrument parts.
Patent CA-1303092-C (CA)
Title: Fluid coupling construction for non-pressure balanced fluid conduction swivel joints
Inventor: HOWETH D FRANKLIN
IPC: F16L15/00
Filed: 1988-05-24
Granted: 1992-06-09
Abstract: ABSTRACT OF THE DISCLOSURE A  non-pressure  balanced  fluid  conducting  swivel joint for coupling high pressure hydraulic conduit comprised of  first  and  second  tubular  housing  sections  which  are coaxially  interfit with  each  other and a tubular  sleeve member supported intervening between superposed portions of the  housing  sections.    The  sleeve  is  secured thrust resistant  and  for  rotation  to  the  inner  of  the  housing sections via a pair of spaced apart annular races containing bearings extending between the inner housing section and the sleeve  member.     The  outer  housing   is  rotationally interlocked with the sleeve member by virtue of a flexible circumscribing  pin  engaging  an  insert  contained  in  an annular  groove  complementary  formed  between  the  outer periphery of the sleeve member and the inner diameter of the outer  housing.    An  external  slot  permits  insertion  and removal of the driving pin that includes a tang at its outer end which when the pin is operably contained in the groove can be removed for disassembly of the housing sections to effect servicing of the internal seal.  An external sleeve when mounted about the slot of the outer housing serves to shroud the slot and tang from ready access so as to minimize tampering and potential environmental damage.
Patent CA-1279362-C (CA)
Title: Vibration damping means for tension mask cathode ray tubes
Inventor: ADLER ROBERT
IPC: H01J31/20
Filed: 1988-06-07
Granted: 1991-01-22
Abstract: ABSTRACT A cathode ray tube which includes a face-plate having on its inner surface a centrally disposed phosphor screen, and a flat color selection electrode supported in tension, spaced from the screen.  The electrode has a central apertured portion and a peripheral portion, and is susceptible to vibration.  A vibration damping system is located on the peripheral portion of the electrode for damping vibrations in the electrode.
Patent CA-1293247-C (CA)
Title: Ergoline derivatives
Inventor: MANTEGANI SERGIO
IPC: C07D457/02
Filed: 1988-06-22
Granted: 1991-12-17
Abstract: ABSTRACT OF THE DISCLOSURE    An ergoline derivative of the formula I:                           I wherein R1 represents hydrogen or a methyl group; R2 represents hydrogen or a halogen atom, a methyl, cyano or phenyl group or an alkylthio group having from 1 to about 4 carbon atoms; R3 represents a hydrocarbon group having from 1 to about 4 carbon atoms; R4 represents hydrogen, a phenyl group or a hydrocarbon group having from 1 to about 4 carbon atoms; wherein either (a) R6 and R7 represent a valence bond or hydrogen atoms and R8 represents a hydrogen atom or a methoxy group, or (b) R6 represents a hydrogen atom and R7 and R8 taken together represent a valence bond; W represents an oxygen atom or an imino group; A represents a group of the formula CHR5, CH=CR5 or CH2CHR5 wherein R5 represents a hydrogen atom or an alkyl group having from 1 to about 4 carbon atoms; X represents an oxygen or sulphur atom or an imino group; and n is 0, 1 or 2; or a pharmaceutically acceptable salt thereof.  These compounds are useful as antihypertensive agents.
Patent CA-1322199-C (CA)
Inventor: MATSUMURA HIROMU
IPC: B43L13/00
Filed: 1988-07-06
Granted: 1993-09-14
Abstract: ABSTRACT OF THE INVENTION  A compound of the formula :               (I) (wherein R is -SO2Ri or -CONHR2; R' is C1-C6 alkyl, C8-C1 2 phenyl-alkenyl, amino, dimethylamino, optionally substituted C6-C1 2 aryl, or 5- or 6-membered heterocyclic group including at least one hetero atom selected from the group consisting of N, S, and O; R2 is amino, C1-C6 alkylamino, C1-C6 alkyl, or optionally substituted C6-C1 2  aryl)or its pharmaceutically acceptable acid-addition salt, being useful as a drug for senile dementia, psychotropic, or antiamnesia agent is provided through several routes.
Patent CA-1328990-C (CA)
Inventor: LEMAIRE DENIS
IPC: B26B1/04
Filed: 1988-08-11
Granted: 1994-05-03
Abstract: ABSTRACT OF THE DISCLOSURE:     A wedge-shaped arrangement for retracting a leaf spring is positioned in abutment against the tang of a cutting knife. The re-traction of the leaf spring is produced by a sliding rod which enga-ges the wedge and pulls on the leaf spring.
Patent CA-1320146-C (CA)
Title: Press-filter with endless filtering webs
Inventor: GAUDFRIN GUY
IPC: B30B9/24
Filed: 1988-10-05
Granted: 1993-07-13
Abstract: IN THE C A N A D I A N PATENT AND TRADEMARKS OFFICE   PATENT APPLICATION   entitled :  PRESS-FILTER WITH ENDLESS FILTERING WEBS   in the name of : Guy GAUDFRIN     ABSTRACT OF THE DISCLOSURE     A   press-filter   comprising  a chassis,  two   endless filtering  webs,  guide rollers defining paths for the  two  webs, which  paths are at least partially contiguous, and several sets of squeezing  rollers  located  on either side of the  filtering  webs along their contiguous path portions and squeezing the webs.          One  of  the rollers consists in a drum, and  the  filter comprises  a curved rigid roller race at least partially encircling the  drum and spaced therefrom by a predetermined gap;  a plurality of  squeezing rollers are rollably mounted on the roller race,  and the  filtering webs encircle said drum over a major portion of  its periphery and pass between the drum and the squeezing rollers.
Patent CA-1304984-C (CA)
Title: Inker module for a modular mailing machine
Inventor: COHEN JACK A
IPC: G07B17/00
Filed: 1988-11-04
Granted: 1992-07-14
Abstract: INKING MODULE FOR A MODULAR MAILING MACHINE                   ABSTRACT OF THE INVENTION The inking module includes a plurality of first links extending horizontally and parallel.  One end of the first links are fixably mounted to an ink pad tray, the other end of the first links having formed thereat a tilting surface. A drive means causes the first links to displace the ink pad tray to and from the first and second position.  A guide means guides the first links horizontally along a linear path and including abutting means for causing the first links to tilt vertically when the tilting surface contacts the abutting means to place the ink pad tray in the second position.
Patent CA-1326579-C (CA)
Inventor: PALAZZOTTO MICHAEL C
IPC: G03F7/029
Filed: 1988-11-22
Granted: 1994-01-25
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to photoinitiator systems for use in addition, i.e., free radically-initiated, polymerization.  This invention porvides photopolymerizable compositions comprising:    (1)  at least one vinyl monomer capable of undergoing free radical polymerization, (2)  a visible light or ultraviolet light responsive photoinitiator system comprising: a)  a diarylidonium salt, b)  a pigment, insoluble in the photopolymerizable composition, said pigment also serving as a sensitizer, c)  one or more electron donating compounds, and, optionally, (3)  adjuvants.      The three component photoinitiator system of this invention can increase, by several orders of magnitude, the rate of ultraviolet light or visible light photocuring of vinyl monomers.
Patent CA-1299055-C (CA)
Inventor: KITTLE PAUL A
IPC: A01G13/00
Filed: 1988-11-23
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE       A method of forming a temporary barrier between a substrate and the atmosphere by applying to the substrate a layer of foam generated from an aqueous composition comprising specified agents.  Certain compositions especially adpated for this purpose are also provided.
Patent CA-1310823-C (CA)
Title: Equipment and method for supply of organic metal compound
Inventor: HIAI ATSUHIKO
IPC: C23C16/448
Filed: 1988-12-22
Granted: 1992-12-01
Abstract: Abstract A supply equipment for stable supply of feed gas of an organic metal compound at a constant connection comprises a cylindrical vessel with an organic metal compound housed, an inlet tube of carrier gas for vaporizing said organic metal compound, an outlet tube for letting out the carrier gas substantially saturated with the vaporized organic metal compound, a room provided in the lower part of the vessel which is connected to said carrier gas inlet tube, a packed bed of an organic metal compound formed above said void part, and a partition with a plurarity of pores partitioning said room and said packed bed.
Patent CA-1306767-C (CA)
Title: Electrical heating device
Inventor: MARSTILLER JOHN A
IPC: H05B3/10
Filed: 1988-12-28
Granted: 1992-08-25
Abstract: ELECTRICAL HEATING DEVICE           Abstract Heating devices, in which a conductive pattern is carried on an insulating surface and a pair of spaced apart electrodes are electrically connected to the conductive pattern, are characterized in that the conductive pattern in at least one heating area of the device defines a two-dimensional array of areas that are devoid of conductive material ("voids") within a continuous "mesh" of conductive material.  In preferred embodiments in which the conductive pattern comprises either a printed conductive graphite ink layer or a vacuum-deposited metal layer, the centers of the adjacent voids are at the corners of equilateral triangles and each void is a hexagon.
Patent CA-1337529-C (CA)
Inventor: BAGGIOLINI ENRICO GIUSEPPE
IPC: C07F7/18
Filed: 1989-01-17
Granted: 1995-11-07
Abstract: The novel compounds of the formula   wherein R is hydrogen or hydroxy and A is -C ? C-; -CH=CH- with E-configuration or -CH2-CH2-, are useful as agents for the treatment of hyperproliferative disorders of the skin and as agents for the treatment of neo-plastic diseases.