baber/WOPTO huggingface dataset:
Patent CA-2001950-C (CA)
Title: Dock leveler lift assembly and method for operation
Inventor: HAHN NORBERT
IPC: B65G69/24
Filed: 1989-11-01
Granted: 1994-08-16
Abstract: A dock leveler lift assembly for facilitating loading and unloading operations from a loading dock is provided.  The assembly includes a deck adjustable in a leveler mode between selected raised and lowered angular positions relative to the platform surface of the dock as well as adjustable in a lift mode between lift and descent positions while the deck is maintained in a horizontal position.  The deck is releasably mounted on a first means for raising and lowering the deck in a horizontal position.  A second means releasably retains a deck rear edge portion pivotally attached to an elevated portion of a frame. Pivotal attachment of the deck to the frame coupled with lowering of the first means out of direct contact with the underside of the deck permits movement of the deck to a lowered angular position relative to the dock surface.  A method for operating such an assembly is also provided.
Patent CA-2002105-C (CA)
Title: Dideoxy-l-arabinitol derivatives as antiviral compounds
Inventor: KOSZYK FRANCIS J
IPC: C07C43/166
Filed: 1989-11-02
Granted: 1999-01-19
Abstract: Novel antiviral compounds are disclosed having the following formula wherein R1 is C1-C14 alkyl or C1-C14 hydroxyalkyl or C3-C12 alkanoyl or a substituted or unsubstituted aryl radical having six to ten carbon atoms; and wherein R2, R3 and R4 are the same or different and each is H or acyl having one to six carbon atoms; provided, however, that when R2, R3 and R4 are each H, then R1 is C4-C9 alkyl or C2-C5 hydroxyalkyl or C3-C12 alkanoyl.
Patent CA-2003988-C (CA)
Inventor: LOELIGER WILLI
IPC: B65B51/14
Filed: 1989-11-27
Granted: 2000-01-25
Abstract: Bags having a spout opening defined by a spout edge surface affixed within the bags are sealed with a spout closure membrane first by pressing the closure membrane against the spout edge surface with a cooled plate. A heating unit which includes a heating element, which has a surface which corresponds in size and shape with the spout edge surface, then is moved adjacent the cooled plate to heat a portion of the cooled plate for sealing the closure membrane to the spout edge surface. After heating the closure membrane for sealing the spout edge surface to the closure membrane, the heating element is moved away from the plate whereby the heated portion of the plate then cools and cools the seal. After the seal is cooled, the plate then is moved away from the sealed spout and bag. The invention also includes displacement systems associated with the plate and heating unit to move them towards and away from the bag and spout and to enable applying pressure to the closure membrane and spout edge surface by means of the plate. The heating unit also includes an insulating body which surrounds the heating element.
Patent CA-2005554-C (CA)
Inventor: KAWABATA SHOICHI
IPC: H01G13/00
Filed: 1989-12-14
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE         A method of fabricating a multilayer capacitor including a series of steps of applying an electrode paste on a ceramic green sheet supported on a supporting film, cutting the ceramic green sheet to a predetermined size by employing a cutting bead having drawing means, stripping the cut ceramic green sheet from the supporting film with the ceramic green sheet being held in the cutting head, transferring the ceramic green sheet held in the cutting head  to  a  metallic  pressing  mold,  and  laminating  a plurality of ceramic green sheets in the metallic mold to obtain a laminated body by repeating the above step of stripping the ceramic green sheet from the supporting film and the above step of transferring the ceramic green sheet to the metallic mold.
Patent CA-2020140-C (CA)
Title: Communication network between user equipment
Inventor: DESPRES REMI
IPC: H04L12/44
Filed: 1990-06-29
Granted: 1996-12-17
Abstract: The invention concerns a network for communication between user equipments for the transfer of messages emitted by each user equipment to all the other user equipment.  The network according to the invention has a tree-structured configuration and operates with emission authorizations or tokens.
Patent CA-2032951-C (CA)
Title: Ophthalmic diagnostic apparatus and method
Inventor: SKLAR H ALFRED
IPC: A61B3/107
Filed: 1990-12-21
Granted: 1995-04-18
Abstract: An ophthalmic diagnostic instrument determines the shape of the cornea through projection of an image onto the cornea through the optics of the diagnostic instrument. The instrument and the method of the invention involve folding a projected pattern of discrete separated point light sources so that the pattern is projected toward the eye coaxially with return collected light reflected off the cornea.  The instrument avoids any need for a pattern light source directly adjacent to the eye, and provides the surgeon or other eye care specialist with a real time image accurately displaying the shape of the cornea.  The surgeon is thus able to monitor the corneal shape prior to surgery, to monitor its changes during the course of the surgery, and to further monitor the cornea in post operative stages. In a specific embodiment of the invention, a real image of the pattern of point light sources is formed inside very closely in front of the objective lens of the system so that the objective lens becomes a field lens and the angle of view of the system is enlarged.
Patent CA-2037341-C (CA)
Title: Plate attachment system for a printing machine form cylinder
Inventor: REICHEL KLAUS T
IPC: B41F27/12
Filed: 1991-02-28
Granted: 1993-08-17
Abstract: ABSTRACT OF THE DISCLOSURE.           To provide for circumferential support of a stretching spindle (8) having axially extending holding or stretching grooves (9, 10) to retain an end portion (14, 17) of a printing plate and clamp the other end portion (16) against the wall of an axially extending clamping groove, a resilient support element (11) is secured to the spindle, to bear against an inner wall of the clamping groove.  Preferably, the support element is a resilient or springy element, secured to the spindle by a screw (12).  The arrangement permits selective rotation of the form cylinder (1)  in either direction, upon suitable placement of the printing plate thereover, with no change of parts or disassembly or reassembly being necessary, by merely rotating the spindle (8) in appropriate direction with respect to the direction of rotation of the form cylinder.
Patent CA-2039266-C (CA)
Title: Process for modifying polyamide dyeability using co-fed polyamide flake
Inventor: RAO SUNDAR M
IPC: D01F1/06
Filed: 1991-03-27
Granted: 2001-01-02
Abstract: A process for modifying the dyeability of polyamide polymers is disclosed, the process involving the addition of co-fed polyamide flake of the same type of polyamide as the base polyamide with the co-fed flake having a significant effect on the final dyeability. the additive flake comprises high- or low-amine-end polyamide flake which is mixed and melted with the base polyamide to adjust the total number of amine ends in the polymer, thereby controlling the polymer dyeability.
Patent CA-2050822-C (CA)
Title: Intermediate for making 3-oxo-4-aza-androst-1-ene 17-.beta.-ketones
Inventor: WILLIAMS JOHN M
IPC: A61P43/00
Filed: 1991-09-06
Granted: 1996-10-22
Abstract: Described is a new intermediate and new process for preparing 3-oxo-4-aza-androst-1-ene 17.beta.-ketones.  The process involves converting the corresponding 17.beta.-alkyl carboxylate to the N-methoxy-N-methyl carboxamide and reacting this with an appro-priate Grignard reagent to form the desired ketone. The reaction can be conducted in "one pot", thus eliminating isolation of intermediates and avoiding the use of less stable intermediates, e.g., acid chlorides, acyl imidazolides and the like.  The intermediate has the formula:             II   wherein R1 is hydrogen.
Patent CA-2051753-C (CA)
Inventor: SALIBI SLEIMAN K
IPC: E03D5/08
Filed: 1991-09-18
Granted: 1994-05-31
Abstract: FOOT FLUSH ADAPTOR                         ABSTRACT          An apparatus that adapts hand actuated flushing mechanisms, commonly found on commercial latrines, for actuation using one's foot.  An extension tubing couples to an actuation mechanism of a flushing mechanism, for causing actuation of the flushing mechanism.  A connecting rod member couples to the extension tubing for causing the extension tubing to actuate the flushing mechanism.  A foot pedal couples to the connecting rod member to oscil-late the connecting rod member.  A mounting bracket couples to the foot pedal for pivotally mounting the foot pedal to a remote surface for pivotal movement of the foot pedal.
Patent CA-2053640-C (CA)
Title: Quinoline derivatives
Inventor: HASEGAWA HIROSHI
IPC: C07D471/04
Filed: 1991-10-17
Granted: 2001-12-25
Abstract: Quinoline derivatives of the formula,   wherein >A~ represents a group >N-(CH2)n- , >C=, >C=CH(CH2)n-, or >CH(CH2)n-, wherein n is an integer of 0-7;      Y represents a group >C=O or >CHOH, R1 is a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, or an alkylthio group, R2 is a hydrogen atom, a halogen atom, an alkyl group, a hydroxy group, an alkoxy group, a phenyl group which may have a substituent, a phenoxy group, an alkanoyloxy group, or an amino group which may have a substituent, R3 is a hydrogen atom, a halogen atom, an alkyl group, or an alkoxy group, and m is an integer of 1-3. The compounds and their salts exhibit a superior anti-acetylcholinesterase activity with no side effects and are effective for the prevention or cure of senile dementia or memory disturbance.
Patent CA-2062953-C (CA)
Title: Fluorescent aquatic bioassay and procedure
Inventor: HAYES KENNETH R
IPC: C12Q1/00
Filed: 1990-04-24
Granted: 2001-12-25
Abstract: The present invention relates to a novel assay for determining levels of toxicants in aqueous environments, preferably in water supplies. The present invention also relates to a method for utilizing the assay to test the level of toxicants in an aquatic source. Further embodiments of the present invention relate to a test kit embodying the assay of the present invention, and the enzymatic modification of a substrate to produce a fluorescent product.
Patent CA-2072537-C (CA)
Inventor: ROBINSON STEPHEN A
IPC: B64G1/22
Filed: 1992-06-26
Granted: 1997-10-28
Abstract: A method for stowing a unitary flexible antenna reflector 10 in a confining envelope and deploying the reflector from the envelope.  In a most general sense, the invention  includes the steps of: a) applying a deforming force to diametrically opposed  positions 16 and 18 near an edge of the reflector 10 to place the reflector in a deformed state; b) maintaining the reflector 10 in the deformed state until deployment; and c) releasing the reflector 10 from the deformed state. In a specific embodiment, the step of maintaining the reflector 10 in a deformed state includes the step of attaching a restraining element between the diametrically opposed positions on the edge of the reflector which is released on deployment.
Patent CA-2073507-C (CA)
Inventor: KOSANKE JOHN W
IPC: A01N63/20
Filed: 1991-11-08
Granted: 1999-04-06
Abstract: A process for producing a dried bacterial agricultural product having superior v iability initially involves culturing (fermenting) a species of microorganism in a growth medium to form a culture. The culture con taining the microorganism plus the growth medium is then mixed with a carrier. The resulting mixture is incubated f or at least one day to increase the microorganism count in the mixture. The mixture is then air dried slowly for at least about on e day so the moisture level in the microorganisms is gradually reduced to form the dried composition. The process may further include steps of milling and then coating seeds with the composition. An inoculant composition according to the invention, which may be made by the foregoing process, consists essentially of a clay carrier and at least 10 9 viable bacterial per gram of the composition. Compositions containing biocidal microbes which combat insects, fungi or the like, and other useful microbes, suc h as growth promoting bacteria, may also be prepared.
Patent CA-2079154-C (CA)
Title: Seed harvester
Inventor: MORGAN JOHN P
IPC: A01D45/30
Filed: 1992-09-25
Granted: 1996-01-30
Abstract: An apparatus is disclosed for harvesting seed which includes a frame and a housing defining a seed box and having a rotary brush mounted on a forward portion thereof which is connected to link bars which are in turn connected to the frame.          Corresponding pairs of link bars are attached between the frame and housing on opposite sides of the apparatus, the link bars on each side being substantially parallel to each other.  Means are provided for varying the angle of the link bars to the frame, the link bars operationally functioning as a parallelogram to raise or lower the housing at a constant angle relative to the frame.  A draw bar is pivotably connected to the front of the frame and tilt angle adjustment means are provided to vary the angle between the frame and the draw bar thereby providing an independent means for varying the angle of attack of the rotary brush to the plants from which seed is being collected.
Patent CA-2082030-C (CA)
Title: Method and apparatus for sharpening a cutting blade of a rotary shaver
Inventor: VOLL RODGER F
IPC: B26B19/38
Filed: 1992-11-03
Granted: 1996-09-24
Abstract: A method of sharpening the blades of a rotary shaver having rotating discs with a plurality of cutting blades consisting of the following steps.  Firstly, substitute a cup shaped sharpening head for a comb-like shaving head on a rotary shaver. The cup shaped sharpening head has a flat abrasive bottom in communication with cutting blades on the rotating disc.  Secondly, activate the drive motor whereby the disc rotates rapidly rubbing the cutting blades against the abrasive bottom of the cup shaped sharpening head.
Patent CA-2082205-C (CA)
Title: Piston compressor for the oilfree compression of gases
Inventor: FEISTEL NORBERT
IPC: F04B39/00
Filed: 1992-11-05
Granted: 1998-12-08
Abstract: The piston (6) guided in a cylinder (1) exhibits at least one split socalled trapped piston ring (10) accommodated in an annular groove on the piston. By its circumferential face (12) remote from the inner face (11) of the cylinder the piston ring bounds in the annular groove a space (23) which is acted upon by the pressure of the gas in the compression space. Starting from this circumferential face (12) the piston ring exhibits two radial boundary areas (13, 14) parallel with one another, of which the area (14) next the compression space extends over part of the radial width of the ring. The piston ring (10) isguided by its two parallel boundary areas (13, 14) to slide against corresponding areas in the annular groove. The residual area (16) of the piston ring next the compression space, starting from the circumferential face (15) next the inner face (11) of the cylinder, is made as a wedge face which extends at an angle of from 5 to 15° up to a boundary area parallel with the boundary area (14) next the compression space. The face in the annular groove adjacent to the wedge face (16) also runs at the same angle in parallel with thewedge face (16).
Patent CA-2083658-C (CA)
Inventor: HARRIOTT-JURELLER SHARON MARIE
IPC: B01J31/18
Filed: 1992-11-24
Granted: 1996-06-25
Abstract: Novel bleach and oxidation catalysts are reported as well as a bleaching-detergent composition employing these catalysts and a method for removing stains from substrates. The catalysts are manganese complexes of the formula (A): [LMnIV (OR)3] Y, (A) wherein Mn is manganese in the +4 oxidation state; R is a C1-C20 radical selected from alkyl, cycloalkyl, aryl, benzyl and radical combinations thereof; at least two R radicals may also be connected to one another so as to form a bridging unit between two oxygens that coordinate with the manganese; L is a ligand selected from a C3-C60 radical having at least 3 nitrogen atoms coordinating with the manganese; and Y is an oxidatively-stable counterion.
Patent CA-2087832-C (CA)
Title: Method and apparatus for controlling an inverter
Inventor: MIYAZAKI SATOSHI
IPC: H02M7/48
Filed: 1993-01-21
Granted: 1998-06-23
Abstract: An inverter control apparatus comprises a controller, a  mode  decision  circuit  and  a  voltage  reference conversion circuit. The mode decision circuit determines one of three kinds of modes which may be used to control the inverter, namely, a normal mode, a rectangle mode and zero correction mode selected according to values and polarities of multi-phase voltage reference signals. The voltage reference conversion circuit corrects the voltage reference signals according to the determined mode in the mode decision circuit.  In the case of the normal mode, the mode decision circuit outputs the previous voltage reference  signal V~    without  change as  the new or corrected voltage reference signals.  In the case of the rectangle mode, the circuit fixes the voltage reference signal V~ having the greatest value of the three phase (U-phase,  V-phase and W-phase)  to a minimum voltage reference Vmin which  is  of  opposite polarity to the selected  greatest  value  signal,   or,   in  another embodiment,  to  a  zero  value.    Further  the  circuit converts  the  others  voltage  reference  signals  to corrected voltage reference signals without change of line voltage.    The control circuit permits control of the inverter even in a regime of low reference voltage which would otherwise  result  in  an  uncontrolled  region  of  the inverter.
Patent CA-2089047-C (CA)
Inventor: ODA KIYOSHI
IPC: A44B19/26
Filed: 1993-02-08
Granted: 1996-06-04
Abstract: A slider for closing a coupling device, compris-ing: a slider body having a central guide for guiding male and female coupling elements of the coupling device, and a coupling guide channel; and a C-shape puller pivotally connected at its base to a front end of the slider body so as to be free in motion in a horizontal plane, there being a gap between the body and the puller.
Patent CA-2089662-C (CA)
Title: Spatial positioning system
Inventor: BELIVEAU YVAN JOSEPH
IPC: G01S1/70
Filed: 1991-08-19
Granted: 1996-12-03
Abstract: A spatial positioning apparatus providing three-dimensional position information and methods to utilize the position in-formation for improved surveying, construction layout, equipment operations, manufacturing control and autonomous vehicle control is disclosed.  The spatial positioning apparatus includes at least three, preferably four, fixed referent stations (210).  A min-imum of two, preferably three, of the fixed stations sweeps a spread laser beam horizontally across the site of interest (Fig. IB). The remaining fixed stations sweeps a spread beam vertically across the site of interest (Fig. 2).  A strobe signal is emitted from each fixed station when the rotation mechanism actuates a rotation datum (230 or 234).  The spatial positioning apparatus also in-cludes one or more portable position sensors (240).  The portable position sensor includes a light sensitive detector (242), a com-puter (246), and a display (254).  The x, y, z coordinates of the portable position sensor are obtained through a triangulation tech-nique based on time marks received from each spread laser beam from the fixed stations and the rotation datum received from the strobe of each fixed station.  Alternatively, the system may include counter-rotating lasers (Fig. 17) and/or an "axicon"-type detector (Fig. 25).  Multiple portable position sensors for use in attitude information for productivity improvement for equipment and for control of autonomous vehicles are disclosed.
Patent CA-2095709-C (CA)
Title: Process for the manufacture of functionalized resins
Inventor: ARSENAULT GILLES JOSEPH
IPC: C08F8/34
Filed: 1993-05-06
Granted: 2004-03-30
Abstract: A process is provided for the production of functional group containing resins wherein an alkyl-di-thiol is added to the polymerizing mixture of styrene and divinyl benzene part way through the polymerization.      On completion of the polymerization, the product is a thiol functionalized styrene-divinyl benzene resin.
Patent CA-2102782-C (CA)
Title: 2-fluoro-2-substituted adeninyl arabinosides as anti-cancer agents
Inventor: MONTGOMERY JOHN A
IPC: A61P35/00
Filed: 1992-05-07
Granted: 2003-09-16
Abstract: The present inventon is directed to certain 2'-fluoro, 2-substituted purine nucleosides which are cytotoxic to cancerous cell lines and inhibit ribonucleotide reductase and DNA polymerase.
Patent CA-2107351-C (CA)
Inventor: WEGNER EGON
IPC: C09D7/80
Filed: 1992-02-19
Granted: 1997-12-16
Abstract: Système de mélange pour la préparation de compositions de revêtement diluables à l'eau, de couleurs clairement définies et produites au moyen de divers colorants de base.  Ce système comprend : a) divers colorants de base (A) contenant moins de 5 % en poids d'eau, au moins un pigment de couleur et/ou à effet spécial, un solvant organique, au moins un liant diluable à l'eau ou hydrodispersable et, au choix, des substances auxiliaires et des additifs; b) au moins un composant (B) sans pigment et contenant de l'eau.  La présente invention comporte, en outre, un processus de production de compositions de revêtement à l'aide de ce système de mélange, ainsi que l'utilisation de ce même système en vue de fabriquer des peintures en phase aqueuse pour recouvrir des carrosseries d'automobile et/ou des composants en plastique, particulièrement pour la finition des automobiles.
Patent CA-2109490-C (CA)
Title: Billing system for radio communications
Inventor: TSUMURA MIHOJI
IPC: H04N7/173
Filed: 1993-10-28
Granted: 2003-09-09
Abstract: A billing system in radio communications, particularly satellite communications, for billing and collecting information service fees against pay information on a receiver unit. The billing system comprises a main unit disposed on a transmitter side having a host computer with a database for storing various types of data and a transmitter, and receiver units for receiving said various types of data transmitted through radio communications. A data frame of each of various types of data transmitted by the main unit is tagged with an identification code corresponding to said each type. The receiver unit comprises signal processing circuits, each of which processes respective type of data, and an utilization.status memory for sequentially storing the identification code corresponding to the processed data hype. Utilization status is accumulated and summed information fees are'given based on the conversion data provided by the main unit, each information service fee is fed back to the main unit functioning a host station.
Patent CA-2111378-C (CA)
Inventor: EDWARDS ROBERT J
IPC: B43M3/04
Filed: 1993-12-14
Granted: 2005-04-12
Abstract: In a document collating and stuffing apparatus wherein documents are collated along a longitudinally extending transport deck having an upstream end and a downstream end, the documents being fed from a plurality of feeding stations serially positioned above the transport deck, and at least one of the feeding stations including a platform mounted thereto, an improvement to the feeding station comprising structure for adjustably positioning the platform at one of a raised position and a lowered position, the raised position causing the feed station to feed the documents directly to the transport deck before a next upstream collation is transported on top of the fed document by pusher structure, and the lowered position causing the platform to support documents fed thereto until the next upstream collation is transported along the transport deck under the platform by the pusher structure at which time the document is transported on top of the collation by the pusher structure.