baber/WOPTO huggingface dataset:
Patent CA-2027193-C (CA)
Title: Spray booth for applying coatings to a substrate and control device therefore
Inventor: MOSSER MARK F
IPC: B05B15/12
Filed: 1990-10-09
Granted: 2000-02-22
Abstract: A spray booth for applying a coating to a substrate includes an outer chamber (12) containing a fluid therein having a predetermined first temperature and/or humidity and an inner chamber (14) in fluid communication with the outer chamber (12).      The inner chamber (14) contains the fluid therein at a higher predetermined second humidity and/or temperature. The inner chamber (14) includes a fan (42) for recirculating a flow of the fluid at the second predetermined temperature and/or humidity therethrough and filters (34,36,44,46) for removing airborne contaminants. A temperature and/or humidity control device (58) exhausts a predetermined amount of the fluid from the inner chamber (14) out of the inner (14) and outer chambers (12) said exhausted fluid being essentially free of toxic contaminants, the exhaust of the fluid drawing fluid from the outer chamber (12) into the inner chamber (14) to lower the temperature and/or humidity in the inner chamber (14).
Patent CA-2029474-C (CA)
Title: Electronic flash apparatus for reducing the incidence of human eyelid closures during exposure
Inventor: HARRISON GEORGE C
IPC: G03B15/05
Filed: 1990-11-07
Granted: 2001-01-30
Abstract: Electronic flash apparatus is provided that is capable of reducing the incidence of eyelid closure of a subject during an exposure interval when the subject is illuminated with visible light from the electronic flash apparatus immediately prior to the exposure interval. The electronic flash apparatus includes a visible light flash tube and an electrical circuit coupled thereto for controlling flash tube energization and de-energization immediately prior to and during an exposure interval. The electrical circuit includes apparatus for coupling the flash tube to a suitable source of electrical energy and for applying a trigger signal to the flash tube in order to illuminate the subject with a finite amount of visible light immediately prior to an exposure interval that will not cause the eyelids of the subject to blink in response thereto during the exposure interval.
Patent CA-2036123-C (CA)
Title: Vacuum platen transport plenum vacuum shutter
Inventor: SIEGEL ROBERT P
IPC: G03G15/04
Filed: 1991-02-11
Granted: 1994-12-13
Abstract: A mechanism for shuttering of vacuum ports of a vacuum platen transport (VPT) plenum in correspondence with the size of the documents being transported from the document tray of a recirculating document handler. The shuttering mechanism is coupled to a movable side guide of the document tray and includes a flexible coiled tape mounted with respect to the vacuum plenum of the VPT and movable side guide of the document tray such that movement of the side guide causes the tape to seal off vacuum slots within the plenum that are not located beneath documents.
Patent CA-2036157-C (CA)
Title: Transformation process of thermoplastic polyurethanes by extrusion, and modifying agents used in said process
Inventor: PIARD ANDRE
IPC: B29C47/00
Filed: 1991-02-12
Granted: 1997-12-30
Abstract: Conversion of TPUs by extrusion with the aid of modifying agents chosen from polyamide-based thermoplastic elastomers. The modifying agents improve especially the conversion parameters and the rheological behaviour of the TPUs during their processing.
Patent CA-2045931-C (CA)
Title: Encryption with selective disclosure of protocol identifiers
Inventor: GUPTA AMAR
IPC: H04L29/06
Filed: 1991-06-28
Granted: 1994-03-29
Abstract: ENCRYPTION WITH SELECTIVE DISCLOSURE OF PROTOCOL IDENTIFIERS     A method  for selective disclosure of the identity of a communication protocol under which an information packet originated, but without incorrectly identifying the protocol in a header accompanying the packet. If there is a need to conceal the identity of the underlying source protocol,  a special anonymous protocol identifier is used, instead of the real proto-col identifier, in the header of an encrypted informa-tion packet.  Network monitors can then still provide accurate information concerning traffic on the network, without having this information distorted by the use of incorrect communication protocols. If there is a desire to reveal the underlying protocol, a subnetwork proto-col frame format is used to store the protocol identity and signify whether the packet is encrypted. A packet that is of a non-subnetwork protocol can be encapsu-lated with a subnetwork header containing a special code signifying that there is an encapsulated packet and containing the original protocol identifier.
Patent CA-2046425-C (CA)
Title: Absorbent product having mechanical attachment mechanism
Inventor: DAVIS MARTHA
IPC: A61F13/56
Filed: 1991-07-05
Granted: 2001-12-04
Abstract: Absorbent products, such as sanitary napkins, are provided which include mechanical attachment means for securing the undergarment-facing side of these products to an undergarment for minimizing shifting during movements by a wearer. The mechanical attachment means includes male and female fastening elements which engage to capture a portion of the thickness of the undergarment and may include slide fasteners, snap fasteners and fasteners including apertured rings with protruding button male portions.
Patent CA-2047374-C (CA)
Title: Optical fiber connecting device including attenuator
Inventor: CAMMONS RAY R
IPC: G02B6/26
Filed: 1991-07-18
Granted: 1994-06-14
Abstract: Abstract of the Disclosure A cylindrical ferrule type optical fiber connector (20) includes an attenuator arrangement which includes an element (70) that is capable of movement during the assembly of the connector. The connector includes a cylindrically shaped sleeve (60) which has a longitudinally extending slot (61) formed through the wall thereof and which is adapted to receive a cylindrical plug (40) in each end thereof, each plug being spring-biased outwardly from a cap (45) and terminating an optical fiber (21). The attenuator element has a disc-shaped portion (74) which is disposed within the sleeve. A neck portion (76) which extends through the slot of the sleeve connects the disc-like portion to a supporting head portion (72) which engages an outer surface of the sleeve. As one plug is inserted into the sleeve, it engages the attenuator element and causes it to be moved along the slot in the sleeve. The insertion of the second plug causes it to engage an opposite side of the element and to move it and the spring-loaded first plug in an opposite direction to a rest position.
Patent CA-2050123-C (CA)
Title: Apparatus and method for parallel generation of cyclic redundancy check (crc) codes
Inventor: DRAVIDA SUBRAHMANYAM
IPC: H03M13/09
Filed: 1991-08-29
Granted: 1997-12-09
Abstract: A method and apparatus are disclosed for the efficient generation of cyclic redundancy check (CRC) codes employing CRC generator polynomials of the form (1 + x)~f(x). The efficiency is achieved by independently and concurrently generating in parallel a preliminary CRC code word corresponding to f(x) and a term corresponding to (1 + x) over a message M(x). The term corresponding to (1 + x) is generated in a manner to have either a zero (0) state or a one (1) state. Then, the term corresponding to (1 + x) is used to modify the preliminary CRC code word to obtain an overall CRC code word being generated over message M(x). If the term corresponding to (1 + x) is a 0 state, then the overall CRC code word is obtained by shifting the bits of the preliminary CRC code word once to the left. If the term corresponding to (1 + x) is a 1 state, then the overall CRC code word is obtained by shifting the bits of the preliminary CRC code word once to the left and adding f(x) to the shifted preliminary CRC code word.
Patent CA-2050366-C (CA)
Title: Fire fighting trainer
Inventor: ERNST JAMES
IPC: G09B9/00
Filed: 1991-08-30
Granted: 2006-08-08
Abstract: A fire fighting trainer for use in training fire fighters to extinguish jet crash fuel fires and the like, the trainer includes a supply pipe and control valve, a distribution pipe with holes, an open water tank with water within which the distribution pipe is disposed, so that liquid propane jets out from the holes, then passes as vapor bubbles to the water surface, then collects as propane vapor on the water surface, and a gas pilot flame device for lighting the propane vapor to form flames an the water surface. The simulated flames look very similar to jet crash liquid fuel flames.
Patent CA-2052252-C (CA)
Title: Technique for adjusting signal dispersion cancellation apparatus in communications systems
Inventor: FADAVI-ARDEKANI JALIL
IPC: H03H17/00
Filed: 1991-09-25
Granted: 1996-12-17
Abstract: A technique for generating the tap-weight coefficients for a signal dispersion cancelling filter utilizes circuitry which is responsive to received signal samples and generates a time-ordered sequence of derived signal samples. The tap-weight coefficient circuitry includes filters which operate in response to this sequence. One such filter is responsive to the derived signal samples in a firstportion of the sequence after the time-order of the derived signal samples therein is reversed and another filter is responsive to the derived signal samples in a second predetermined portion of the sequence. This technique is applicable to a variety of communications systems including television and is particularly suitable for integrated circuit implementation.
Patent CA-2054967-C (CA)
Title: Enhanced flavors using menthone ketals
Inventor: GREENBERG MICHAEL J
IPC: A23L27/20
Filed: 1991-11-05
Granted: 1997-10-07
Abstract: A method is disclosed for enhancing flavors in low moisture consumable items, including chewing gum, using menthone ketals.  Chewing gum, oral compositions, pharmaceuticals, and low moisture foods containing menthone ketals are provided.
Patent CA-2059305-C (CA)
Title: Hexa-cyclic compound
Inventor: TERASAWA HIROFUMI
IPC: A61P35/00
Filed: 1992-01-14
Granted: 2001-07-31
Abstract: A novel hexa-cyclic compound, a derivative of camptothecin, of the general formula:   (see formula I) The compound is prepared from an aminoketone compound and a pyranoindolizine compound by a condensation-ring closing reaction. It is abundantly water-soluble, and has an excellent antitumour activity and a high degree of safety, and can be applied as an antitumour medicine for curing tumors of various kinds.
Patent CA-2061777-C (CA)
Title: Fluid controller
Inventor: TANIKAWA TSUYOSHI
IPC: F16K31/50
Filed: 1992-02-25
Granted: 2003-01-14
Abstract: A fluid controller comprising a valve element and a valve stem rotatably attached at its lower end to the upper end of the valve element, the valve element being movable upward or downward by rotating the valve stem to move the valve stem upward or down-ward. The valve element is brought into contact with and seated in a valve seat to close a fluid channel by being moved downward. The element is brought out of contact with the valve seat to open the fluid channel by being moved upward. The controller has an elastic member for biasing the valve element upward to press the element against the valve stem with a predetermined force in the vicinity of the seated position where the valve element is in contact with the valve seat.
Patent CA-2063318-C (CA)
Inventor: FERRERAS JULIAN
IPC: B27B17/00
Filed: 1992-03-18
Granted: 1995-08-01
Abstract: A piling cutting tool (10) comprising a piling cutting jig (12) and chain saw (14) engaged therewith. The jig (12) includes a rectangular frame (38) having levels (94) and (96) on the top wall (48) thereof.  A receiving tube (58) is attached to the frame (38) and sized and shaped to receive an adapter shaft (84) attached to the chain saw (14).  The height of the chain saw (14) is adjusted by a rod (70) and locked into the desired position by locking lever (74).  The shaft (84) rotates about the longitudinal axis of the bore (68) to swing the cutting chain (30) through a cutting arc to thereby make a horizontally level cut across the piling (54).
Patent CA-2064163-C (CA)
Title: Personal computer with processor reset control
Inventor: FUOCO DANIEL P
IPC: G06F1/24
Filed: 1992-03-26
Granted: 1998-04-14
Abstract: This  invention  relates  to  personal  computers,  and  more particularly to personal computers in which capability is provided for continuance of processing through an occurrence of  a  RESET  signal  while  avoiding systems  failures.  The personal computer system has a high speed local processor data  bus;   an   input/output   data  bus;   a   resettable microprocessor coupled directly to the local processor bus; and a bus interface controller coupled directly to the local processor bus and directly to the input/output data bus for providing communications between the local processor bus and input/output  data  bus.   The  bus  interface  controller provides for arbitration among devices directly coupled to the input/output data bus for access to the input/output data bus and to the local processor bus and for arbitration among the input/output data bus and the microprocessor for access  to  the  local  processor  bus.  The  bus  interface controller  further  recognizes  receipt  of  a  reset  signal intended  to  initiate  a  reset  of  the microprocessor  and defers delivery of a reset signal to until the bus interface controller has barred access to the local processor bus and input/output  bus  by  any  of  the  devices  potentially reqesting such access.
Patent CA-2072205-C (CA)
Title: Self-lubricating abrasion resistant material and products
Inventor: LIU ANDREW T C
IPC: A61K6/896
Filed: 1992-06-24
Granted: 2000-05-16
Abstract: Dental composition including a self-lubricating abrasion resistant material. The dental composition is used to form dental products having an outer surface with a low kinetic coefficient of friction. The dental products formed are abrasion resistant and self-lubricating across their entire cross sections. The self-lubricating material preferably includes polyethylene particles having a molecular weight of at least 1,000,000, and a particle size less than 80 microns and/or silicon containing compounds. The composition is formed into a dental prosthesis, artificial tooth, inlay, onlay, facing, crown or bridge.
Patent CA-2074536-C (CA)
Title: Manufacturing method for waveguide-type optical components
Inventor: YANAGAWA HISAHARU
IPC: G02B6/13
Filed: 1992-07-23
Granted: 2002-04-23
Abstract: A method for manufacturing waveguide-type optical components featuring a lower propagation loss at low cost in which a lower clad section (2) made of silica glass is formed on a substrate (1), and an antistatic layer and a mask layer having a desired pattern are formed on the surface of the lower clad section (2) in the order they are listed. Then, an electron beam is irradiated from above the mask layer to produce a core (6) of the desired pattern in the lower clad section (2), the mask layer and the antistatic layer are removed to expose the surface of the lower clad section (2), and an upper clad section (7) having a lower refractive index than the core (6) is formed on the exposed surface of the lower clad section (2), thus producing an optical component. The surface of the whole optical component is apart from the core; therefore, the scattering loss caused by minute irregularities on the surface of the optical component is reduced.
Patent CA-2077860-C (CA)
Title: Image scanner
Inventor: NAKASHIMA TOKIO
IPC: H04N1/00
Filed: 1992-09-09
Granted: 1996-04-30
Abstract: An image scanner including an original holder 12 for holding an original copy 11  placed on a transparent original support plate 10 in place.  The original copy 11 is illuminated by a light source 13 and a reflected light 18 from the original copy 11 is received by an image sensor 14. To check a position of the original copy 11 visually while the original holder 12 is closed, the original holder 12 comprises  a  transparent  first polarizing plate having a first polarizing angle.  An external light coming inside the case body through the first polarizing plate is prevented from reaching the image sensor 14 by a second polarizing plate 16 which has a second polarizing angle rotated by 90° from the first polarizing angle and is disposed between the original copy 11 and the image sensor 14 in a light path of a light incoming into the image sensor 14.
Patent CA-2079763-C (CA)
Inventor: DENIS PHILIPPE
IPC: C07C51/10
Filed: 1992-10-02
Granted: 2003-01-07
Abstract: La présente invention à pour objet un procédé de préparation de l'acide adipique par réaction de l'eau et de l'oxyde de carbone sur au moins un acide pentènique, en présence d'un catalyseur à base d'iridium et d'au moins un promoteur iodé, à une témpérature élevée, sous une pression supérieure à la pression atmosphérique, dans au moins un solvant choisi dans le groupe constitué par les hydrocarbures saturés aliphatiques ou cycloaliphatiques et leurs dérivés halogénés, les hydrocarbures aromatique et leurs dérivés halogénés, et les éthers aliphatiques, aromatiques ou mixtes, le rapport atomique I/Ir étant inférieur à 20.
Patent CA-2082327-C (CA)
Title: Surgical cutting instrument
Inventor: PINGLETON EDWARD D
IPC: A61M1/00
Filed: 1992-11-06
Granted: 2003-09-30
Abstract: A surgical cutting instrument is disclosed for percutaneously debulking tissue through an access sheath commonly used in minimally invasive laparoscopic or endoscopic surgical procedures. The cutting instrument includes a inner rotary member tube having a cutting edge at the distal end thereof for cutting and slicing tissue. The outside surface of the rotary inner cutting member tube and outer sheath annularly close about the distal ends thereof for preventing perforation of the surgical tissue bag in which the tissue is contained. The inner cutting member tube includes a hollow passageway for suctioning and aspirating tissue and fluid through the tube and into a collection chamber or out through a vacuum or suction line attached thereto. Vacuum or suction control ports are included at the proximal end of the inner cutting member tube and stationary sheath for also controlling the amount of vacuum or suction applied to the tissue. The surgical cutting instrument includes a control handle for grasping by the physician. A collection chamber is connected to a coupler connected to the stationary sheath for collecting tissue therein. The inner cutting member tube extends through the collection chamber to a drive motor or to a remotely positioned rotary drive mechanism. A vacuum line is attached to the collection chamber for drawing tissue and fluid through the inner cutting member tube and into the collection chamber.
Patent CA-2084408-C (CA)
Title: Illumination system and method for a high definition light microscope
Inventor: GREENBERG GARY
IPC: G02B21/22
Filed: 1992-03-20
Granted: 1997-11-11
Abstract: An illumination system and method for increasing resolution, sharpness, depth of field, and perception of depth for a transmitted light microscope including a condenser lens (12) having an optical axis (13), an objective lens (14) having an optical axis (16), and an eyepiece system (41) wherein a light beam path shift device (23 and 24) enables two or more separate light beams (28 and 32) to be focused onto the condenser lens (12) along paths (28a and 32a) that are not coincident with the condenser lens optical axis (13) and that produce beam exit paths (33 and 34) from the condenser lens (13) which are at maximum oblique angles relative to the optical axis (16) of the objective lens (14).
Patent CA-2085835-C (CA)
Inventor: MIZUNUMA WATARU
IPC: F16H59/08
Filed: 1992-12-18
Granted: 1997-03-18
Abstract: (1) Various gear states are selected by movement of a shift lever 2 in a longitudinal shift path 13 and the gear stage is automatically shifted from starting to the maximum gear stage in an automatic speed change position D, so that an operator can run a vehicle with increased safety and easy operation without operation of the shift lever 2.  (2) When a push button switch 3 provided in the shift lever 1 is pressed during the automatic speed change running, the gear stage during the running is fixed, so that inadvertent automatic shift is prevented to be held to the optimum speed stage when a burden is varied in running on a slope or in operation.          (3) When the gear stage is fixed in the automatic speed change position D and the shift lever 2 is transversely moved in the transverse shift path 14, the operator can varies the stages while varying one stage a time with the operator's will.  That is, the manual speed change or transmission can be selected regardless of the automatic speed change state.  The operator can switch the transmission state to the automatic transmission state or the manual transmission state in accordance with various running states and operation states to thereby improve the operation efficiency of the operation vehicle.
Patent CA-2085863-C (CA)
Title: Quick connect tube coupling
Inventor: OLSON DARWIN C
IPC: F16L33/22
Filed: 1992-12-18
Granted: 2003-04-08
Abstract: A quick connect coupling for connecting a tube to a body having a stepped bore formed therethrough. The coupling includes a sleeve which is press fit in the bore.      The inner surface of the sleeve has a cylindrical portion, a radially outwardly extending frusto-conical portion, and an internal shoulder defined therebetween. A collet is disposed within the sleeve having a boss portion which is slightly smaller than the inner diameter of the cylindrical portion sleeve. The boss portion supports and guides the collet for co-axial movement relative to the sleeve. The collet further includes an enlarged end portion having an external shoulder and a extending frusto-conical surface.      The frusto-conical collet surface is disposed within the frusto-conical sleeve surface. The tube is inserted within the coupling within the collet. When it is attempted to move the tube out of the body, the frusto-conical collet surface engages the frusto-conical sleeve surface of the sleeve. Also, the external collet shoulder engages the internal sleeve shoulder. As a result, the collet (and the tube engaged thereby) are positively retained within the coupling and the body.
Patent CA-2088289-C (CA)
Inventor: BEUSCHER NORBERT
IPC: A61K35/37
Filed: 1993-01-28
Granted: 2002-11-12
Abstract: Extraction of pharmaceutically active compositions from a mixture of numerous ingredients, in particular from comminuted plants, such as Tanacetum parthenium, succeeds with a high yield and a surprisingly improved stability of the active substances when the extraction is carried out with a gas, preferably CO2, in the supercritical state.
Patent CA-2088508-C (CA)
Title: Shock absorbing means for flow control devices
Inventor: ALBERTS JACK B
IPC: F16K47/00
Filed: 1992-01-22
Granted: 1999-01-19
Abstract: A pressure relief valve (14, 14A) has a reciprocable valve member (34, 34A) for seating on an annular seat face (66, 66A) of a nozzle assembly (38, 38A). The nozzle assembly (38, 38A) has an inner seat ring (40, 40A), a radially outer anchor ring (42, 42A), and a flexible connecting member (44, 44A) extending in a generally radial direction between the outer peripheral surface (64) of the seat ring (40, 40A) and the inner peripheral surface of the anchor ring (42, 42A). Upon seating or reseating of the valve member (34, 34A), seal face (36, 36A) contacts the seat face (66, 66A) of seat ring (40, 40A) and flexible connecting member (44, 44A) flexes upon relative movement of the seat ring (40, 40A) after initial contact of the valve member (34, 34A) against the seat ring (40, 40A) thereby to act as a shock absorber for absorbing impact forces.