baber/WOPTO huggingface dataset:
Patent CA-1310516-C (CA)
Title: "v" notched integrally shrouded turbine blade and method for determining shroud tightness and wear of a circular array of rotating blades disposed in a rotor
Inventor: KELLER BOBBY R
IPC: G01N3/56
Filed: 1987-12-08
Granted: 1992-11-24
Abstract: 53,706 ABSTRACT OF THE DISCLOSURE Notches  are  placed  between  adjacent  shroud portions of integrally shrouded rotating blades of a steam turbine forming a turbine rotor blade row generally 90° apart and a predetermined wedging force is applied to each notch to wedge adjacent shroud segments apart, the width of the  gap  formed  is measured,  recorded  and compared with future measurements made  after  the  turbine has been in service to determine wear on the shroud portions; also, a wedging force is applied to open a gap at each notch to receive a predetermined sized shim, the wedging force is relieved clamping the shim in the gap and then generally increased until the shim can be pulled from the gap by hand, the wedging force at which the shim can be pulled is recorded and compared with future similar recordings after the rotor has been in service to provide an indication of wear on the shroud portions.
Patent CA-1278471-C (CA)
Inventor: KOHM THOMAS S
IPC: H05K3/18
Filed: 1987-12-30
Granted: 1991-01-02
Abstract: ABSTRACT OF THE DISCLOSURE     A multilayer printed wiring board is described having (1) an inner layer conductive pattern on an organic insulating base material, (2) a poly(vinyl acetal)-phenolic resin coating containing an amine substituted organic zirconate or titanate coupling agent, (3) a dielectric insulating layer, (4) a bonding composition capable of being adhesion promoted for electroless metal deposition comprising a phenolic resin having at least two methylol groups and substantially free of methyl ether groups, a heat resistant aromatic or cyclic resin having functional groups capable of reacting with the methylol groups without the evolution of water, and (5) an outer conductive pattern, the multilayer board being capable of withstanding at least five soldering cycles of at least 255°C for 2 seconds without blistering or delamination.  Processes for manufacturing the multilayer board are also described.
Patent CA-1282236-C (CA)
Title: Electronic periodontal probe with a constant force applier
Inventor: HIRSCHFELD JOHN W
IPC: A61C19/04
Filed: 1988-01-05
Granted: 1991-04-02
Abstract: FP/S&S - 1 ABSTRACT OF THE DISCLOSURE      A periodontal  probe  and  recording  apparatus  for measuring the depth of a pocket formed by the gum (gingival tissue)  surrounding a tooth.   The periodontal probe and recording apparatus are comprised of a probe tip with a simplified spring tension device electrically connected via a transducer to the recording apparatus.   The probe tip reciprocates via a movable arm in a short, easy to clean, sleeve fixed to a probe body, wherein the probe tip acts against a constant spring tension.   With the probe tip resting on the bottom of the pocket, the periodontal probe body is pressed toward the pocket until the sleeve touches the margin of the gum forming the pocket.   The exposed length of  the probe tip  represents  the  depth of  the pocket.  There is a locking mechanism for locking the tip at the measured depth for visual measurement.   Also, the probe depth is electronically measured by the mechanical displacement of the transducer and transmitted,  at the touch  of  a  foot  switch,  from  the  transducer  to the recording apparatus comprised of a digital readout and/or a computer with a printer and a voice synthesizer and voice recognition circuits.
Patent CA-1295708-C (CA)
Title: Solid-state optical position determining apparatus
Inventor: GRIFFIN JAMES L
IPC: G06F3/033
Filed: 1988-01-08
Granted: 1992-02-11
Abstract: SOLID-STATE OPTICAL POSITION DETERMINING APPARATUS    ABSTRACT OF THE DISCLOSURE      An optical position determining apparatus for detecting radiant energy reflected from a target zone includes an emission device for generation and emission of radiant energy, a device for redirecting radiant energy across the target zone, a reflecting device for reflecting the radiant energy back from the target zone,  and a detector device for sensing the presence of radiant energy reflected from the target zone.   The emission device is stationary and emits a beam of radiant energy toward the redirecting device, which redirects the radiant energy along a primary beam path.  The redirecting device also is configured for permitting a return beam of light from the target zone to impinge upon the detector device, which is located therebehind with respect to the direction of travel of the return beam.  The detector device includes a CCD (charge coupled device) linear sensor formed of a plurality of sensor elements.   The sensor elements are pulsed in successive order for scanning the target zone for the presence of the reflected radiant energy and for producing an electrical signal in response to the presence of such reflected radiant energy.
Patent CA-1296137-C (CA)
Title: Wrist joint prosthesis
Inventor: RANAWAT CHITRANJAN S
IPC: A61F2/42
Filed: 1988-01-20
Granted: 1992-02-25
Abstract: Wrist Joint Prosthesis Abstract A wrist joint prosthesis comprises a metal radial component and a metal metacarpal component connected by a metal axle and providing triaxial motions that are comparable to those of the anatomical wrist joint and restraint of excessive motions.  Energy is absorbed and shock loads are minimized by the inter-position of a bearing member between the radial and metacarpal components and a bearing sleeve of poly-meric material over the axle.
Patent CA-1338773-C (CA)
Title: Use of methylenedioxybenzene derivatives as synergists in compositions for insecticide use
Inventor: TOZZI ANTONIO
IPC: A01N43/30
Filed: 1988-02-05
Granted: 1996-12-10
Abstract: The use of methylenedioxybenzene derivatives having the following general formula:                                (I) in which R1, R2, R3 and R4 are H or CH2O(CH2CH2O)2R6, provided that at least one of R1, R2, R3 and R4 is H and at least one of R1, R2, R3 and R4 is other than H, and R6 is H or an alkyl group with 1-4 C atoms, in compositions for insecticide use in which said derivatives exercise a synergistic action on the various classes of insecticides in general.
Patent CA-1287195-C (CA)
Title: Wide area cordless telephone system having means for avoiding double registrations
Inventor: NAGASHIMA NORIAKI
IPC: H04W60/00
Filed: 1988-03-31
Granted: 1991-07-30
Abstract: NE-144-Mk (053A/3) "Wide Area Cordless Telephone System Having Means for Avoiding Double Registrations"                 ABSTRACT OF THE DISCLOSURE       A wide area cordless telephone system covers a service area which is divided into a plurality of local areas to each of which belong a plurality of home position cordless telephones having multi-channel access capability.  A plurality of access units are provided in each local area to define a plurality of access zones.  A pre-dialing switching stage is provided for each local area to establish a connection between the access units and line terminals of a telephone switching system. Signals sent from any cordless telephone are received by a nearby access unit and applied to the pre-dialing switching stage.  Each telephone transmits a registration request upon a manual command and, on receiving a response identifying a local area, returns an acknowlegement to identify the same local area as identified by the received response.  On receiving a registration request, the pre-dialing switching stage transmits a response identifying the own local area through an access unit and assigns a reserved line terminal of the telephone switching system to a non-home position telephone if it is identified by the received request.  On receiving an acknowledgement, the switching stage makes a registration of a telephone if the acknowledgement from it identifies the same local area as identified by the response.
Patent CA-1338476-C (CA)
Title: Photoelectric control unit
Inventor: NOONE SEAN
IPC: H05B37/02
Filed: 1988-04-20
Granted: 1996-07-23
Abstract: A photoelectric  control  unit for  street  lighting comprises control means including a photoelectric sensor mounted on a printed circuit board for switching on a street lamp when the intensity of light falling on the sensor falls below a preset value.  Electrical connection means between the P.C.B. and the lamp is provided by three connector pins which are led through a cooling chamber or stem.  The pins are cranked to closely follow the contour of  the chamber  to dissipate  heat through  the chamber walls.   The chamber is also filled with a high thermal conductivity potting compound for heat transfer to the walls  of  the  chamber.    One  controller  for  such  a photoelectric control  unit  includes a  switching means provided by a relay and a triac connected in parallel.          The triac operates to prevent the relay being subjected to high voltages during switching and hence prevents pitting of the relay contacts.
Patent CA-1308382-C (CA)
Inventor: HUNT JAMES G
IPC: B21C37/04
Filed: 1988-04-22
Granted: 1992-10-06
Abstract: ABSTRACT          An apparatus and method used in making wire and similar elongate members, and wire made using same, are provided wherein rods are extruded using a filled billet technique which comprises disposing the rods in a can comprising the filled billet and additional steps are employed which comprise placing the rods in adjoining side-by-side relation to define a geometric pattern and fixing together at their ends those rods defining the periphery of the pattern to define a dense pack of the rods wherein the placing and fixing steps are achieved prior to the step of disposing the rods within the can, and wherein the dense pack and hence the rods are adapted to fit snugly within the can during the disposing step and separable filler means is added between and around the rods whereby the fixing step assures that during extrusion the rods are reduced in cross-sectional area in a better controlled manner.  An apparatus and method used in removing the can from around the extruded rods are also provided together with an apparatus and method for separating the extruded rods.
Patent CA-1301018-C (CA)
Title: Pressure regulating valve
Inventor: DEIKE KARL-HEINZ
IPC: B60T17/18
Filed: 1988-05-06
Granted: 1992-05-19
Abstract: (Case No. 8444) ABSTRACT OF THE DISCLOSURE   The present invention provides a pressure regulating valve which substantially avoids shutoff noises.  The pressure regulating valve is designed such that the opening process of the shutoff valve proceeds in two steps.  The two-step switching process is made possible by the provision of a seal ring which slides on an activating piston which activates the shutoff valve.  This seal ring acts upon a housing mounted detent and an activating piston mounted additional detent, thus creating an automatically acting additional surface area for the activating piston.  This design also makes it possible to increase the safety function of the pressure regulating valve, by increasing the pressure medium activated surface area of the valve body for the shutoff valve without incurring higher work forces at the activating piston.
Patent CA-1304208-C (CA)
Title: Resin transfer molding core, preform and process
Inventor: JOHNSON CARL F
IPC: B29C70/48
Filed: 1988-06-14
Granted: 1992-06-30
Abstract: Abstract of the Disclosure A resin transfer molding preform and a core for same and a resin transfer molding process employing same are disclosed.  The core has an outer surface and comprises a plurality of internal communication passages extending within the interior thereof.  At least one such internal communication passage has an inlet opening and at least one discharge opening extending through the outer surface of the core.  At least a second internal communication passage has a discharge opening extending through the outer surface of the core and at least one inlet opening.  The preform comprises such core with fiber reinforcement material affixed to the outer surface thereof.  The resin transfer molding method of the invention comprises positioning such preform in a concavity of a molding tool, closing the molding tool and introducing uncured resin into the cavity through the inlet opening of the first internal communication passage.  The cavity is vented through the discharge opening of the second internal communication passage. Subsequently, the resin is cured to produce an FRP composite structure.
Patent CA-1332287-C (CA)
Title: Overfill spillage protection device
Inventor: LEBLANC LEO J
IPC: B65D90/10
Filed: 1988-08-29
Granted: 1994-10-11
Abstract: OVERFILL SPILLAGE PROTECTION DEVICE ABSTRACT         An overfill and spillage protection device for capturing fuel spilled from a tank touch supply hose or the fill pipe of an underground fuel storage tank takes the form of a tubular reservoir having an axially flexible bellows shaped side wall.  Forces induced by freezing or thawing of the ground in which the reservoir is embedded which would apply strain to the coupling between the reservoir and fill pipe are absorbed by the flexing action of the bellows shaped reservoir.  A rigid tubular skirt slidably encloses the bellows portion to prevent concrete or dirt from packing into the concave regions of the bellows.
Patent CA-1314018-C (CA)
Title: Tamper-evident cap and neck structure
Inventor: BULLOCK JOSEPH J III
IPC: B65D41/48
Filed: 1988-09-23
Granted: 1993-03-02
Abstract: ABSTRACT OF THE DISCLOSURE            A plastic cap for a container neck formed with upper and lower external locking beads has a top disk from which depends an upper outer skirt having an upper internal locking bead and a larger diameter lower skirt having a lower internal locking bead.   Between  the  skirt  sections  is  an  external  outward extending flange which is weakened by a notch cut in its outer corner.  The interior of the skirt is formed with an outward extending shoulder at a lower elevation than said external outward extending flange and the lower skirt wall intersects said outward extending shoulder in a circular intersection.  A circumferential line of minimum thickness extends downward-inward from said notch to said line of intersection.  When the cap is seated on the neck the upper and lower beads inter-engage,  the  cap  cannot  be  removed  without  evidence  of tampering.   To fracture the flange at the line of minimum thickness, a tear tab depends from the lower edge of the skirt and a curved score line at the upper end of the tear tab extends up from the lower edge of the skirt to the level of the line of minimum thickness.   Pulling the tab tears the skirt at the curved score line and around the line of minimum thickness, removing all or a sufficient portion of the lower skirt and its lower internal locking bead.
Patent CA-1332959-C (CA)
Title: Replaceable bushing and contact assembly for blade type air insulated switchgear
Inventor: ROBERTS GERALD B
IPC: H01H33/77
Filed: 1988-09-26
Granted: 1994-11-08
Abstract: Improved switchblade-type, air dielectric switchgear apparatus is provided which utilizes a minimum of supporting insulators and incorporates readily field-replaceable bushing assemblies so that the switchgear apparatus may be serviced in the field using only conventional tools.  In preferred forms, the switchgear apparatus includes internal switch assemblies making use of substantially ver-tically oriented switchblades mounted for pivotal movement about an elevated,  generally horizontal axis  located  above  the  corresponding  stationary contacts.  The replaceable bushing assemblies are advantageously mounted at a level for interconnec-tion with the upper ends of associated switchblades, and  the  assemblies  include  a  conical  outermost connection end adapted to receive a line connecting elbow, together with an elongated, inwardly extend-ing, electrically conductive intermediate portion carrying an innermost terminal.  The inner terminal is designed for frictionally engaging the upper end of an associated switchblade, and for this purpose includes a pair of depending, spring-loaded contact plates.  If a given bushing assembly requires re-placement, it is only necessary to externally dis-connect the assembly from the switch housing wall, followed by manual removal of the defective assem-bly.   An identical replacement assembly is then inserted through the tank wall and the assembly terminal is initially positioned relative to the switchblade,  this operation being facilitated by visual inspection through a window below the bushing assemblies.    The  replacement  bushing  is  then attached using external connection hardware, this operation serving to properly and finally position the terminal relative to the switchblade.
Patent CA-1325171-C (CA)
Inventor: KOASHI KATSUE
IPC: A61B5/00
Filed: 1988-11-15
Granted: 1993-12-14
Abstract: ABSTRACT     This disclosure relates to a method for measuring the concentrations of sugars in liquids by the use of near infrared light as well as an apparatus for practicing said method.  The method comprises a step wherein the absorption spectrum of the sugar under investigation existing at a first depth relatively close to the surface in a sample is computed by using relatively weak power of near infrared light, a step wherein the absorption spectrum of the sugar under investigation existing at a relatively deep second depth in the sample is computed by using relatively strong power of infrared light, and a step wherein the concentration of the sugar under investigation in the sample is determined by computing the absorption spectrum of the sugar at a different depth between said first and second depths on the basis of the results of measurement in said first and second steps.          The wavelengths used for said absorption spectrum are selected from anyone of wavelength bands of 950-1,150 nm, 1,150-1,300 nm, and 1,300-1,450 nm.  Since, according to this method, wavelengths which are shorter and closer to the visible region than in the prior art are used, the method enables the measuring light beams to penetrate deeper in living tissue and makes it possible to measure the concentrations of sugars existing in a deeper region non-invasively.
Patent CA-1298732-C (CA)
Title: Printing press
Inventor: WOLFBERG LARRY
IPC: G03G15/22
Filed: 1989-01-13
Granted: 1992-04-14
Abstract: ABSTRACT A method and apparatus for the automatic production of  business  forms,  wallpaper,  newspapers or the like from a web of continuous printing material comprises a printing station including an endless movable printing device such as a rotating cylinder.   An image is pro-jetted to a surface of the device.  The image is trans-ferred to the web of continuous material at the printing station.   Immediately after the printing station,  the image is erased from the device so that a remaining por-tion of the image may be projected onto its surface.  In this manner the device appears to provide a printing surface of indeterminate length and so is designed with-out relation to the image to be projected.  A plurality of such printing stations may be arranged in series for color  printing.   Furthermore,  the  operation  of  the printing station and associated activities may be con-trolled by a pre-selected computer program.
Patent CA-1296469-C (CA)
Title: Imide group-containing aromatic polyamides, process for their preparation and use thereof as molding materials
Inventor: FINKE JUERGEN
IPC: C08L77/10
Filed: 1989-01-17
Granted: 1992-02-25
Abstract: ABSTRACT OF THE DISCLOSURE         An imide group-containing aromatic polyamide, obtained by polycondensation of A) an aromatic diamine of the general formula H2N-Ar-O?Ar'-X-Ar'??O-Ar-NH2 wherein Ar and Ar' are a m- or p-phenylene group, X is -SO2- or -CO- and m is 0 or 1, with at least one aromatic dicarboxylic acid B) selected from the group consisting of B1) a mixture comprising 40 to 100 mole % of an acid of the structure   and 60 to 0 mole % of an acid of the structure   in which n is 0-4 and R is selected from the group consisting of a) an alkyl group having 1-6 carbon atoms, b) an unsubstituted phenyl or an alkyl- or aryl substituted phenyl group, c) an alkoxy group having 1-6 atoms, d) a phenoxy group, in which the phenyl ring is unsubstituted or is alkyl- or aryl substituted, and e)  a halogen, B2)  an acid of the structure   and B3)  a dicarboxylic acid of the formula HO2C-Ar-(A-Ar)p-CO2H wherein Ar is m-phenylene or p-phenylene, A = -O-, -S-, -SO2-, or -CO-, and p = 0 or 1, and C)  an aromatic dicarboxylic acid anhydride of the formula   in which R and n are as defined above.  The polyamide has good processability and is useful as a molding material.
Patent CA-1323935-C (CA)
Inventor: ALLEN LINUS S
IPC: G01V5/10
Filed: 1989-05-10
Granted: 1993-11-02
Abstract: METHOD OF ANALYZING EXPONENTIAL DATA           Abstract A method for analyzing data modeled by a sum of exponential terms by determining weighted moments of a characteristic independent variable and amplitude for such data. In a specific embodiment, weighted moments of time and intensity are determined from the data. Corresponding weighted moments of time and intensity are also determined for a model consisting of a sum of exponential terms. Corresponding weighted data moments and modeled moments of time are equated and corresponding weighted data moments and modeled moments of intensity are equated. The resulting set of equations is solved simultaneously for the values of the time and intensity parameters which appear in the model.
Patent CA-1321887-C (CA)
Inventor: KUBICKO ROBERT E
IPC: A47J31/58
Filed: 1989-06-28
Granted: 1993-09-07
Abstract: Abstract A coffee brewing machine utilizes an insulated carafe to receive the brewed coffee and automatically turns itself off a short time after completion of a brew cycle.  The machine also turns off automatically a specified time after a brew cycle is initiated when calcification is so extreme that flow of water through the unit is totally prevented. Additionally, as a safety feature, the system also turns off automatically in the case of a "dry run", that is, a short specified time after accidental energization when no water is in the reservoir.  A lamp is lighted when a brew cycle is in progress but is extinguished at other times.
Patent CA-1327578-C (CA)
Title: 5-substituted-2,4-diphenylpyrimidine derivatives, their production and use
Inventor: SATO JUNICHI
IPC: C07D239/34
Filed: 1989-08-09
Granted: 1994-03-08
Abstract: ABSTRACT OF THE DISCLOSURE          A compound of the formula:                          wherein R1  represents  a  hydrogen  atom,  or  a  halogen atom, a (C1 to C3)-alkyl group, a halo-(C1 to C3)-alkyl group, a (C1 to C6)-alkoxy group which may contain an un-saturated bond, a (C1 to C2)-alkylthio group, a halo-(C1 to C6)-alkoxy  group which may  contain  an  unsaturated bond, a halo-(C1 to C2)-alkylthio group, a phenoxy group, a  (C1 to  C3)-alkylcarboxy  group,  a  halo(C1  to  C3)-alkylcarboxy group, a (C1 to C2)-alkoxy-(C1 to C2)-alkoxy group, a (C1 to C3)-alkylsulfonyloxyl group, a halo-(C1 to C3)-alkylsulfonyloxy group, a cyano group, a  (C1 to C3)-alkoxycarbonyl  group,  a hydroxycarbonyl  group,  an aminomethyl group or a hydroxymethyl group at the ortho or meta position;   R2  represents  a hydrogen atom,  a halogen atom, a (C1 to C2)-alkyl group,  a halo-(C1 to C2)-alkyl  group,  a  (C1 to  C2)-alkoxy  group,  a  nitro group, a (C1 to C2)-alkylthio group, a halo-(C1 to C2)-alkylthio group or a halo-(C1 to C2)-alkoxy group;   and R3 represents a  (C1 to C2)-alkyl group,  provided that both R1 and R2 are not a hydrogen atom at the same time. The compound is used as herbicides.