baber/WOPTO huggingface dataset:
Patent CA-1294501-C (CA)
Title: Bone screw
Inventor: STEFFEE ARTHUR D
IPC: A61B17/74
Filed: 1988-06-10
Granted: 1992-01-21
Abstract: Abstract The bone screw for use with a connecting member for connecting a bone portion with the connecting member.  The bone screw includes an elongate shank having a longitudinal central axis.  A first externally threaded portion receives a nut for attaching the connecting member to the bone screw.  A second externally threaded portion engages a surface defining an opening in the bone portion to attach the bone screw to the bone portion.  A cylindrical body portion is located on the shank intermediate the first and second externally threaded portions.  The body portion engages a portion of the surface defining the opening in the bone portion to restrict movement of the bone screw relative to the bone portion in a direction transverse to the longitudinal central axis of the shank.  The body portion blocks effluence from the opening in the one bone portion.  A seat portion having a surface located on the body portion adjacent the first externally threaded portion engages the connecting member to establish the axial location of the connecting member along the bone screw.
Patent CA-1296793-C (CA)
Title: Bypass controller and bypass system
Inventor: PARKER JEFFREY L
IPC: G05D23/13
Filed: 1988-06-21
Granted: 1992-03-03
Abstract: BYPASS CONTROLLER AND BYPASS SYSTEM     ABSTRACT OF THE DISCLOSURE     A microcomputer-controlled bypass controller for use in maintaining a minimum airflow through a heating/cooling unit and limit the static pressure in the supply of air trunk duct. The bypass controller functions to control the operation of a bypass damper which regulates the airflow through a duct that bypasses air from the supply trunk duct to the return.  The bypass controller also measures the air flow via an air flow sensor and communicates with a microcomputer-controlled thermostat to coordinate transitions between heating and cooling cycles in association with a second sensor which monitors the duct temperature.
Patent CA-1313815-C (CA)
Title: Blade construction for use in slicing material webs
Inventor: PAAVOLA ANTTI
IPC: B26D1/00
Filed: 1988-06-23
Granted: 1993-02-23
Abstract: Abstract The present invention concerns a blade construction for use in longitudinally cutting (in slicing) material webs, such as various paper and cardboard webs, films and recorder tapes, etc., with said cutter a material web being longitudinally parted into partial webs, the cutter consisting of a blade construction comprising one or several blade pairs.  On the edge of a first blade, and similarly on the edge of a second blade, has by grinding been produced a micro-rounding, and on the apex of the first blade has been produced a bead.  The radius applied in micro-rounding is advantageously within 0.5-5 µm, and the dimension of the bead is advantageously within 0.1-1 mm.
Patent CA-1328214-C (CA)
Title: Vibrational power generator
Inventor: BIES DAVID A
IPC: B06B1/18
Filed: 1988-06-24
Granted: 1994-04-05
Abstract: ABSTRACT     A vibrational generator including an inertial body and a housing means which are relatively movable and where hydraulic fluid is directed into the inertial body through a controlling valve of the inertial body and directed alternately into one or other working chamber which causes the movement of the housing means and any attached load. There is also disclosed a wave form shape detectable from the pressure or flow rate of the hydraulic fluid so that the relative frequency of the drive as compared to resonance can be determined and used for control to maintain resonance. The apparatus has particular application in the frequency range of 20 Hertz to 1000 Hertz.
Patent CA-1305882-C (CA)
Title: Macro-gradient optical density transmissive light concentrators, lenses and compound lenses of large geometry, and fabrication thereof
Inventor: HAGERTY JAMES J
IPC: F24S23/30
Filed: 1988-08-15
Granted: 1992-08-04
Abstract: MACRO-GRADIENT OPTICAL DENSITY TRANSMISSIVE LIGHT CONCENTRATORS, LENSES AND COMPOUND LENSES OF LARGE          GEOMETRY, AND FABRICATION THEREOF     ABSTRACT OF THE DISCLOSURE      Gradient optical density transmissive light directing devices (24, 26, 28, 30) and fabrication thereof are dis-closed herein.   Examples of such devices include concen-trators, lenses and compound lenses.   The present inven-tion teaches a process for the fabrication of glass light transmitting devices having a chosen gradient in index of refraction either bidirectionally (radially and longitu-dinally relative to an optical axis) or in three dimen-sions. The present invention further describes the design of several interesting optical devices by particular choices of the gradient in the index of refraction there-of.  Such articles have numerous uses in the optics, opti-cal fiber and solar technology industries for the purposes of designing compound lens systems using a single, inte-gral lens, coupling light into fibers and for concentrat-ing and directing light from a source having a significant angular variation to an energy collecting and/or conver-sion devices such as a photovoltaic cell, to name but a few application.
Patent CA-1327601-C (CA)
Inventor: OHASHI MITSUO
IPC: A61K31/22
Filed: 1988-09-09
Granted: 1994-03-08
Abstract: Abstract of the invention :     Phenoxyalkylcarboxylic acid derivatives of the following formula,   wherein R1 indicates a hydrogen atom, a methyl group or an ethyl group, m is equal to 2, 3 or 4, and n is equal to 3 or 4, their alkali salts and hydrates thereof are useful as antiallergic agents.
Patent CA-1339014-C (CA)
Title: Antibodies to a4 amyloid peptide
Inventor: MAJOCHA RONALD E
IPC: C07K16/00
Filed: 1988-10-07
Granted: 1997-03-25
Abstract: Polyclonal and monoclonal antibodies to a 28-mer peptide present within A4-amyloid are described.  They are  used  for  assays  and  imaging  of  A4-amyloid  in Alzheimer's Disease patients.
Patent CA-1298937-C (CA)
Title: Breast prosthesis with multiple lumens
Inventor: CRONIN THOMAS D
IPC: A61F2/12
Filed: 1988-10-12
Granted: 1992-04-21
Abstract: BREAST PROSTHESIS WITH MULTIPLE LUMENS  ABSTRACT           This invention provides a multiple lumen implant in which the inner lumen is of a substantially spherical shape and is unattached or free-floating.  The invention provides a construction which is able to provide and maintain a high projection and to simulate the natural flow of breast tissue during a variety of activities in which the patient may participate on a daily basis.
Patent CA-1314881-C (CA)
Title: Anti-anxiety agents
Inventor: WELCH WILLARD M JR
IPC: C07D401/12
Filed: 1988-10-24
Granted: 1993-03-23
Abstract: ABSTRACT OF THE DISCLOSURE     Disclosed are anti-anxiety agents 1-(heterocyclyl-carbonyl)-3-[4-(2-pyrimidlnyl)-1-piperazlnyl]propanes and 1-(heterocyclylsulfonyl)-3-[4-(2-pyrimidinyl)-1-(piperazlnyl)] propanes of the formula:       (wherein Z is CO or SO2 and R2 is heterocyclyl group such as pyrrolidino, piperidino, piperazino, etc, optionally substituted), and methods for tlleir preparation and use.
Patent CA-1315710-C (CA)
Title: Method and apparatus for separating fine particulates from a mixture of fine particulates and gas
Inventor: DEWITZ THOMAS S
IPC: B01D50/00
Filed: 1988-10-28
Granted: 1993-04-06
Abstract: A B S T R A C T            METHOD AND APPARATUS FOR SEPARATING FINE PARTICULATES      FROM A MIXTURE OF FINE PARTICULATES AND GAS      A method and apparatus for removal of fine parti-culate fly ash at high temperatures and pressures using a bag filter which produces a clean gas stream that is recycled to compressors or power recovery turbines and a concentrated syngas stream blowdown from which additional solids are subsequently removed.            T14.T8026
Patent CA-1329349-C (CA)
Inventor: LANDER JACK R
IPC: A61M13/00
Filed: 1988-10-28
Granted: 1994-05-10
Abstract: ABSTRACT OF THE DISCLOSURE A cannula assembly for use in conjunction with insufflatory surgical techniques includes a cannula, a housing mounted on one end of the cannula, and a flapper valve mounted in the housing.  The flapper valve includes a valve seat which is situated at an opening formed in the housing, a valve plug which is adapted to engage the valve seat to form a substantially gas tight seal with the valve seat, and a support plate on which the valve plug is mounted and which is biased to pivot the plug into and out of engagement with the valve seat.  The valve plug is movable on the support plate so as to be self-aligning with the valve seat when the plug and valve are in engagement.
Patent CA-1307537-C (CA)
Title: N-naphthoylglycines as aldose reductase inhibitors
Inventor: WROBEL JAY E
IPC: C07C233/65
Filed: 1988-12-19
Granted: 1992-09-15
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed  herein are N-naphthoylglycines and methods of their preparation.  The N-naphthoyl-glycines are novel aldose reductase inhibitors useful for the treatment or prevention of diabetic complications.  The N-naphthoylglycines have the following formula                       (I) wherein R is halogen or lower alkoxy containing 1 to 5 carbon atoms, trifluoroethoxy, phenoxy or phenyl-methoxy; X is =0 or =S; Y is-OH, -NH2 or -NHCO2CH2CH3.
Patent CA-1287123-C (CA)
Title: Two level differential current switch mesfet logic
Inventor: ANDERSON CARL J
IPC: H03K3/356
Filed: 1989-01-25
Granted: 1991-07-30
Abstract: Abstract of the Disclosure A GaAs differential current switch (DCS) logic family is disclosed.  Two cross-coupled, push-pull output butfer stages are coupled to the DCS logtc circuit to increase the gain and to improve noise margins.  The circuit is compati-ble wlth other GaAs logic families such as super buffer logic (SBL) or source follower logic (SFFL).
Patent CA-1328197-C (CA)
Title: Process for ink control in a printing press
Inventor: PFEIFFER NIKOLAUS
IPC: B41F33/00
Filed: 1989-03-09
Granted: 1994-04-05
Abstract: ABSTRACT OF THE DISCLOSURE            Method of ink control in a printing press, includes optically measuring fields on sheets printed by the printing press, comparing an actual ink location for each measuring field, which is attained with the aid of the scanning, with a specified setpoint ink location and controlling inking elements of the printing press so as to reduce deviations in inking.  The method further includes calculating film thickness/densities of printing inks required for attaining the setpoint ink location by using the actual ink location and the setpoint ink location; adjusting the inking elements of the printing press in accordance with the calculated film thicknesses/densities, when the setpoint ink location or an ink location within a specified tolerance range about the setpoint ink location is attained, indicating the non-attainment of the setpoint ink location or of the tolerance range about the setpoint location, and making a manual input before adjusting the inking elements and subsequently producing a printed sheet and/or further computing film thicknesses/ densities.
Patent CA-1335003-C (CA)
Inventor: FREEMAN DANIEL K
IPC: G10L25/00
Filed: 1989-03-10
Granted: 1995-03-28
Abstract: Voice activity detector (VAD) for use in an LPC coder in   a   mobile   radio   system,   uses   autocorrelation coefficients  R0,  R1.....  of the  input signal,  weighted and combined, to provide a measure M which depends on the power  within  that  part  of  the  spectrum  containing  no noise, which is thresholded against a variable threshold to provide a speech/no speech logic output.  The measure is   where  Hi  are  the  autocorrelation  coefficients  of  the impulse response of an Nth order FIR inverse noise filter derived from LPC analysis of previous non-speech signal frames.   Threshold  adaption  and  coefficient  update  are controlled by a second VAD responsive to rate of spectral change between frames.
Patent CA-1309754-C (CA)
Title: Thermoelectric cooling device
Inventor: KOSLOW EVAN E
IPC: F25B21/02
Filed: 1989-03-13
Granted: 1992-11-03
Abstract: Abstract This invention is a device for efficiently cooling a fluid, such as drinking water.  It comprises a stack of thermoelectric cooling modules which are oriented with the hot sides of adjacent modules facing each other, and with the cold sides also facing each other.  Positioned between each pair of modules is an elastomeric spacer which forms a leakproof seal with each module.  The spacer defines a fluid channel between the sides of the adjacent modules and also has a fluid inlet and a fluid outlet.  The fluid to be cooled is circulated through those spacers which are positioned between the cold sides of the thermoelectric modules.  A coolant is circulated through those spacers which are positioned between the hot sides of the thermo-electric modules.
Patent CA-1299969-C (CA)
Title: Two way latching trip valve
Inventor: ELLETT JAMES R
IPC: F16K17/10
Filed: 1989-03-20
Granted: 1992-05-05
Abstract: ABSTRACT          A latching trip valve for opening and closing a safety device.  The trip valve is operable manually and from the pressure of a pilot circuit which monitors the operating conditions of a pipeline.  A floating seat is movable under the influence of a longitudinal movable poppet and its included seal means.  The floating seat and seal means forms a closed passage until the pressure of the pilot circuit decreases whereas the passage is opened.
Patent CA-1329921-C (CA)
Title: Support element for the followers of a cam drive of a drive mechanism and a labelling station equipped with a support element
Inventor: ZODROW RUDOLF
IPC: B65C9/00
Filed: 1989-04-07
Granted: 1994-05-31
Abstract: VIBRATION DAMPING SLUGS IN A SOUND TRANSMISSION ENHANCED CAM CONTROLLED LABELLING MACHINE Support element for followers of a cam drive mechanism which is used to drive extracting elements in a labelling station. The support element comprises an outer body designed for the insertion of followers, and an inner body located within the outer body and out of direct contact with it. The outer body has radially inwardly-directed claws and the inner body has radially outwardly directed claws which lie between the inwardly-directed claws. The space between the two bodies is filled with an insert of elastic material. The outer body is decoupled from the inner body by the elastic insert.
Patent CA-1325905-C (CA)
Inventor: POTUCEK FRANK R
IPC: F16B15/08
Filed: 1989-04-11
Granted: 1994-01-11
Abstract: STAR FASTENER                  ABSTRACT OF THE DISCLOSURE        A star shaped fastener having at least three fins radiating from a central core with the fin-included angle in a five finned embodiment being between 72 to 98 degrees which configuration reduces the fabricated material by 50% and increases the surface area by 15% - 85% compared to a common round nail of equal radius.
Patent CA-1334874-C (CA)
Inventor: KNOWLTON KENNETH C
IPC: G06Q10/00
Filed: 1989-05-25
Granted: 1995-03-21
Abstract: A data processing system provides a desk view which serves as a graphical user interface to the system.  The desk view displays  detailed miniaturized  images  of  all documents possessed by the user.  The compressed document images are user moveable and stackable in the desk view. The  desk  view  also enables  user  selected  operations including   mailing,   disposing,   annotating,   stapling, unstapling  and printing of  documents.   User  interaction with items of the desk view is  communicated through  an electronic  stylus.   Different  actions  with  the  stylus provide naturally expected effects.   The stylus and desk view provide a simulation of a common office desk and user interaction therewith.
Patent CA-1322755-C (CA)
Title: Acetamide compounds
Inventor: MITSUMORI NAOMICHI
IPC: A61P1/04
Filed: 1989-08-17
Granted: 1993-10-05
Abstract: Abstract of the disclosure:        There are provided acetamide compounds represented by the following formula;                              [wherein R1 and R2 each independently represents a hydrogen atom, a C1 to C6 straight- or branched-chain alkyl or alkenyl group, a C3 to C6 cycloalkyl or cycloalkenyl group, or an C6 to C10 aromatic group; or R1 and R2 combine with each other in combination with the adjacent N and carbon atoms or further with at least one of nitrogen, oxygen and sulfur atoms to represent a 5- to 6-membered heterocyclic ring group; R3 represents hydrogen atom, a C1 to C6 straight- or branched-chain alkyl or alkenyl group, a C3 to C6 cycloalkyl or cycloalkenyl group, a halogen atom, a C1 to C6 straight- or branched-chain alkyloxy group, or a C3 to C6 cycloalkyloxy or cycloalkenyloxy group; and n is an integer of 1 to 4], and their pharmaceutically acceptable salts.       The compounds and the salts exhibit potent anti-ulcer activity and are useful for treating ulcer in mammals.
Patent CA-1335596-C (CA)
Title: 1,6-diazaspiro (4,4) nonane-2, 7-dione derivatives
Inventor: WANG PEN C
IPC: C08G65/26
Filed: 1989-08-22
Granted: 1995-05-16
Abstract: A 1,6-diazaspiro[4,4]nonane-2,7-dione derivative having the formula I:                                              (I) in which B has the formula II:                               (II) wherein s) Z1, Z2, Z3, Z4 are independently - C(Z')2 in which Z' independently is hydrogen or C1-4 alkyl, or - such that two adjacent Z atoms form part of a benzene ring; b) each R is independently a bivalent group of the formula III or IV:           or              (III)                   (IV) wherein A is a substituent replacing hydrogen selected independently from a C1-4 alkyl or halogen atom, n independently is 0, 1 or 2 and the free valence bond of C* is linked with a ring nitrogen atom of the spirodilactam of the formula II; c)   m ? O; d)   each X independently is hydrogen or a glycidyl-, acrylyl-, methacrylyl-, allyl- or propargyl group, with the proviso that when X is acrylyl, methacrylyl, allyl or propargyl then m is 0; e)   Y is 2-hydroxy-1,3-propadiyl; f)   each P independently is a divalent radical derived from a dihydric aromatic alcohol; g)   p is on average of from 0 to 3; with the proviso that when R is a bivalent group of the formula III and simultaneously Z2 and Z3 are each CH2 and simultaneously Z1 and Z4 are each independently hydrogen or a C1-4 alkyl, then each X is not hydrogen or glycidyl.  Ether derivatives of the compounds of the invention find utility as thermosetting resins which are employed in the production of cured or crosslinked products useful as surface coatings, in adhesive formulations and in fibre-reinforced composites.
Patent CA-1324672-C (CA)
Title: Variable rate coder
Inventor: TOMITA YOSHIHIRO
IPC: H04B14/04
Filed: 1989-09-25
Granted: 1993-11-23
Abstract: VARIABLE RATE CODER               ABSTRACT OF THE DISCLOSURE     A variable rate coder for transforming an input signal into a low bit rate digital signal, comprising: a plurality of coding units each comprising an output quantizer having a different number of output bits, and each independently transforming the input signal into a compressed digital signal. A plurality of bit rate determining circuits are provided to determine an output of one of the plurality of coding units as an output of the coder by an individual determining method, in which method, quality of a signal which is regenerated from an output of each coding unit is compared with an individual predetermined quality evaluating standard, and then an output of a coding unit having a smallest number of output bits among outputs of coding units satisfying each standard, is determined as the output of the coder. One output among the plurality of the determined outputs, which is determined by a most suitable determining method for the level of the input signal, is used to select the output of the coder. Further, when the number of the output in each of the coding units can be variably set, the most suitable number of output bits for the output of the coder is calculated based on prediction gains of the coding units, a required signal-to-noise ratio of the coder, and an ADC signal-to-noise ratio at the analog to digital converter, and the number of the output in each of the coding units is set based on the above calculated value, before the above operation by the bit rate determining circuits.
Patent CA-1322063-C (CA)
Inventor: VASSALLO DONALD A
IPC: D06M15/333
Filed: 1990-03-16
Granted: 1993-09-07
Abstract: TITLE POLYVINYL ALCOHOL BASED WAX-FREE SIZE COMPOSITION            ABSTRACT OF THE DISCLOSURE Polyvinyl alcohol based sizing solution containing a small amount of low ethylene oxide adduct of branched alcohol provides superior operability during sizing and weaving, and yields fabric that exhibits improved finishing performance.
Patent CA-1308475-C (CA)
Inventor: RHODES CHARLES
IPC: H04N7/01
Filed: 1991-05-28
Granted: 1992-10-06
Abstract: COMPATIBILITY OF WIDESCREEN AND NON-WIDESCREEN TELEVISION TRANSMISSION          ABSTRACT OF THE DISCLOSURE       A widescreen television picture is sampled at a higher sampling rate so as to fit all of the information in the current 52.5 us active video line time. A selection signal is also incorporated with the widescreen picture signal, allowing non-widescreen television receivers to display a contiguous portion of the widescreen picture without geometric distortion. The widescreen television signal is transmitted either in MAC or widescreen NTSC format, and is received by a decoder. The decoder allows the entire widescreen picture to be displayed on a widescreen receiver, and makes use of the selection signal to display the selected portion of the picture on a standard receiver without geometric distortion. In another embodiment, a decoder allows television signals having the standard aspect ratio to be displayed on receivers having widescreen aspect ratios without geometric distortion.
Patent CA-1338524-C (CA)
Inventor: UFFENHEIMER KENNETH F
IPC: G01N1/14
Filed: 1995-05-31
Granted: 1996-08-20
Abstract: Integrated sampler apparatus and method are provided and include a sample  liquid container support component which  is operable to support both closed and open sample liquid containers thereon on a random basis.   Sample liquids from the open sample liquid containers are presented directly to a sample liquid analysis system probe for access thereby; while sample liquids from the closed sample liquid containers, which take the form of sample liquid containers closed by sample needle-pierceable stoppers, are transferred by virtue of a sampling needle assembly and connected sample liquid transfer conduits and transfer valve, to a sample liquid dispensing well for access by the same sample liquid analysis system probe.   Air segmented rinse liquid is provided for the sampling needle, transfer conduits, transfer valve, and dispensing well to minimize sample liquid carryover with regard to the sample liquids from the closed containers; and a surfactant is included with the rinse to lubricate the sampling needle to facilitate the piercing thereby of the closed sample liquid container stoppers and minimize the generation of sample liquid-contaminating stopper particles.  For use with aqueous sampler rinse liquids, hydrophobic sample liquid transfer conduits, transfer valve, and dispensing well surfaces are provided; and an isolation liquid which selectively wets those surfaces to the substantial exclusion of the aqueous sample and rinse liquids, is utilized in conjunction with the rinse liquid to further minimize sample liquid carryover.  The open sample liquid  containers  and  the  dispensing  well  are  supported  at essentially the same level  relative to the probe to maximize sampling accuracy thereby.  A detector is provided to detect sample liquid identification as supported from the sample liquid container support component, and to differentiate between open and closed sample liquid containers for operation of the sample liquid analysis system probe in accordance therewith.
Patent DK-161896-C (DK)
Inventor: PENNINGER JOSEF
IPC: C23F11/12
Filed: 1984-09-28
Granted: 1992-02-03
Abstract: 1. The use of alkali and/or ammonium salts of compounds corresponding to the following formula   see diagramm : EP0144663,P4,F2   in which R1 and R2 are hydrogen or a C1 -C6 alkyl radical and R3 is CH = CH, (CH2 )2 or (CH2 )3 , as corrosion inhibitors in aqueous systems.