baber/WOPTO huggingface dataset:
Patent CA-1278490-C (CA)
Title: Fire stop stack fitting and method of using same
Inventor: HARBEKE GEROLD J
IPC: A62C2/06
Filed: 1987-01-12
Granted: 1991-01-02
Abstract: FIRE-STOP STACK FITTING AND METHOD OF USING SAME               ABSTRACT OF THE DISCLOSUR         A fire-stop stack fitting (34) includes a cylindrically-shaped coupling wall (36) having a stop (52) therein for receiving pipes to be coupled from first and second ends.  The first end of the cylindrically-shaped coupling wall is affixed to a cavity forming wall (42) defining a cavity which is open in an inwardly radial direction and in a first-end axial direction but which is closed in an outwardly radial direction and in a second-end axial direction. An attachment flange (46) is affixed to the first end of the cavity-forming wall for attaching the fire-stop stack fitting to a concrete form (50).  An intumescent material (44) is placed in an intumescent-material cavity (62) and the flange of the fire-stop stack fitting is fastened to a concrete form wall.  After concrete (56) has hardened and the form wall (50) is removed, pipes (38, 40) are inserted in opposite ends of the cylindrically-shaped wall (36).  The intumescent-material is quickly heated by fire on the first side of the wall since the intumescent-material cavity is open to that side and the intumescent material is free to expand radially into the pipe (40) inserted into the first end of the fitting.
Patent CA-1336967-C (CA)
Inventor: UENO HAYAO
IPC: C07K14/56
Filed: 1987-03-09
Granted: 1995-09-12
Abstract: Disclosed are chemically modified proteins having a group of the formula:                             (wherein R represents a hydrogen atom or a lower alkyl, m represents a positive integer and n represents an integer of 1 to 4), the group being bonded to at least one primary amino group of the protein.  The chemically modified proteins can be produced by reacting a protein with an imidoester of the formula:                           (wherein R, n and m are as defined above and R' represents an ester forming group).  The chemically modified proteins are useful as drugs, among others.
Patent CA-1268608-C (CA)
Title: Phenolic foam products and method of production
Inventor: CLARK ROBERT CORBIN
IPC: F16L59/02
Filed: 1987-06-10
Granted: 1990-05-08
Abstract: ABSTRACT There is provided a method of preparing foam insulation products as well as such products in the form of eg. insulation boards. A polymer is initially pre-foamed (such as a phenolic polymer) and then placed in contact with a substrate surface where it then foams further. The substrate surface may be on one or both surfaces of the foam. In this way, good bonding to the substrate is achieved and excess material does not penetrate the substrate.
Patent CA-1280476-C (CA)
Inventor: HAHN MARLYN E
IPC: H01R12/70
Filed: 1987-09-15
Granted: 1991-02-19
Abstract: TITLE CONNECTOR WITH COMPLIANT RETAINER    ABSTRACT OF THE DISCLOSURE A cross-shaped retainer post with an oval longitudinal base which may break through when the ribs of the cross are stressed upon insertion into a locating hole.
Patent CA-1293673-C (CA)
Title: Control system for an impact ripper
Inventor: KRONE JOHN J
IPC: F15B11/16
Filed: 1987-09-25
Granted: 1991-12-31
Abstract: Abstract of the Disclosure Control System For An Impact Ripper Impact rippers are useful in fracturing rocks, concrete, etc. which cannot be fractured by ripping alone.  Operating the impactor of the impact ripper without sufficient loading applied to the ripper tip is detrimental to the life of the impact ripper.  The subject control system includes a pilot operated selector valve which blocks pressurized fluid from the impactor in the absence of pilot fluid thereto and is shifted by pressurized pilot fluid to a position to direct pressurized fluid to the impactor.  A pressure switch is rendered conductive when the fluid pressure generated in a hydraulic cylinder exceeds a predetermined value due to loading on the ripper tip. This actuates a solenoid valve to direct pressurized pilot fluid to the selector valve.  Thus the impactor is activated only when the loading on the ripper tip is above a preselected threshold and is automatically deactivated when the loading on the ripper tip drops below the preselected threshold.
Patent CA-1294332-C (CA)
Title: Method for formatting an answer signal in data transmission
Inventor: TAKAHASHI CHUSEI
IPC: H04L29/08
Filed: 1987-10-02
Granted: 1992-01-14
Abstract: ABSTRACT OF THE DISCLOSURE      A method for formatting an answer signal allows correct  data  communication  even  when  such  data communication is effected through transmission lines under bad conditions such as in a mobile radio communication system, e.g., automobile radio communication system.  The answer signal formatting method forms a plurality of answer signals (ACK or NAK signals) sent from a called party in response to a ringing signal from a calling party, between data blocks, so that an answer signal can be received without fail before the data blocks are completely confirmed by the calling party.
Patent CA-1310990-C (CA)
Inventor: DIETZEL HANS-ULRICH
IPC: B65G47/08
Filed: 1988-01-18
Granted: 1992-12-01
Abstract: ABSTRACT OF THE DISCLOSURE           In order to simplify, and to render easier, and to avoid manipulating difficulties of small-diameter pipes, which have to be separated and singled in the processing at a separating distance and which have to be transported after the processing either within a factory or to different manufacturing or treat-ment stations or between factories, and in particular of pipes with bulges present or to be applied at their ends, such as pipe-connection nuts, protective caps, it is disclosed that the pipes are separated continuously with a fixed distance in between the pipes and are disposed at such a distance in a direction parallel to their axis, and are further separated on a moving support.    This provides each pipe, during the continuous motion in a direct-ion perpendicular to the pipe axis, with a neighboring or with a more remote pipe in a parallel axial position by way of hinged disengageable connection members which, in each case, correspond to the fixed distance and wherein the pipe mat of pipes and hinged connections members is continuosuly withdrawn and possibly wound to a bundle.
Patent CA-1299498-C (CA)
Title: Regenerating dynamic adsorber system and method for contaminant removal
Inventor: ABRAMS RICHARD F
IPC: F24F8/70
Filed: 1988-02-04
Granted: 1992-04-28
Abstract: Applicant:   Richard F. Abrams For:  Regenerating Dynamic Adsorber System and Method for Contaminant Removal ABSTRACT OF DISCLOSURE A dynamic adsorber system and method for removing a contaminant from fluid by feeding contaminated fluid to be cleansed to an adsorption bed, having a capacity for the contaminant based substantially on the flow rate of the contaminated fluid, to cleanse the fluid, and subsequently regenerating that bed by providing clean fluid relatively free of the contaminant to flush that bed with the clean fluid.
Patent CA-1296810-C (CA)
Title: Computer with expansion slots for cards
Inventor: FITCH JONATHAN
IPC: G06F12/06
Filed: 1988-03-11
Granted: 1992-03-03
Abstract: ABSTRACT OF THE DISCLOSURE     A personal computer system including a main circuit board having a central processing unit and expansion slots each of which is adapted to receive a printed circuit board card.  The ma n circuit board further includes memory, a 32-bit address bus with control signals associated therewith, and input/output circuitry.          The slot is coupled to the 32-bit address bus, which is substantially a NuBus bus, and the slot includes distinct identification line means which provide the slot with an identification number (distinct number) in the computer system.          The computer system reserves 256-megabytes of memory space ranging from location $X000 0000 to location $XFFF FFFF for memory on a card in a slot having a distinct number equal to $X.
Patent CA-1317843-C (CA)
Title: Method and device for the extra-corporeal circulation  of blood and for cardiovascular assistance
Inventor: MONTEVECCHI FRANCO M
IPC: A61M1/16
Filed: 1988-03-18
Granted: 1993-05-18
Abstract: ABSTRACT OF THE DISCLOSURE    Method   and  device  for  pumping and  oxygenating   blood circulated extra-corporeally in cardiovascular assistance. Pumping  is  of the pulsed-flow type and is carried  out  by. regular   variations  of  the  pressure  exercised  by   the oxygenating fluid on the blood-fluid interface,  so that the pumping  and oxygenating actions proceed simultaneously in a single apparatus (see Fig.1).
Patent CA-1306625-C (CA)
Title: Corrosion resistant tantalum and tungsten alloys
Inventor: WANG RONG
IPC: C22C27/04
Filed: 1988-06-03
Granted: 1992-08-25
Abstract: Corrosion Resistant Tantalum and Tungsten Alloys Abstract Alloys of 60 to 90 atomic percent tantalum and tungsten are produced in conjunction with stainless steel proportions of iron, chromium and nickel. They are adherent when coated on stainless steel and other metals and highly resistant to corrosion by nitric acid.
Patent CA-1340005-C (CA)
Inventor: BLANK IZHAK
IPC: C07C323/25
Filed: 1988-08-26
Granted: 1998-08-18
Abstract: The invention comprises compositions and methods for the treatment of psoriasis.  The compositions comprise compounds of the formula:       wherein R1 and R2, which are the same or different, each designates (a) an ester of an amino acid group, or (b) an OH group, provided that only one of such R1 and R2 may be OH, where the amino acids are selected from glycine, serine, valine, histidine, threonine, leucine, isoleucine, cystein, cystine, methionine, tyrosine, proline, hydroxyproline, tryptophan, aspartic acid, glutamic acid, lysine, and arginine, or a pharmaceutically acceptable salt thereof.
Patent CA-1319338-C (CA)
Title: Invalid transfer lift
Inventor: LUNAU KEVIN R
IPC: A61G7/10
Filed: 1988-09-07
Granted: 1993-06-22
Abstract: ABSTRACT     An  apparatus for lifting an invalid from a wheelchair to  a bed or vice versa,  which can be operated by the invalid himself. A generally rectangular,  vertical frame is arranged adjacent the invalids'  chest.  The  frame  carries a  motorized  winch  drum, battery  pack,  gearbox  and fingertip controls therefor.  A  six point suspension heavy canvas sling is designed to be mounted  at the  four respective corners of the frame,  to provide a seat and back support for the invalid.
Patent CA-1298450-C (CA)
Title: Suction applying molded blocks in pipe forming apparatus
Inventor: LUPKE MANFRED A A
IPC: B29C49/38
Filed: 1988-09-16
Granted: 1992-04-07
Abstract: ABSTRACT     The invention concerns apparatus for making corrugated tubing.     Mold blocks for formation of a travelling mold  tunnel are  provided  with  suction to the mold face  by  means  of communication between suction passages in the mold block and a  suction  chamber.   Each mold block has a  channel  which slidingly  engages a track of the suction chamber to receive suction  as the mold blocks travel over the  track.   Tongue and  groove connectors are provided between the  channel  of each  block  and  the  track  of  the  suction  chamber  and communication  surfaces of the tongue and groove  connectors to  provide  suction  from the suction chamber to  the  mold face.
Patent CA-1310898-C (CA)
Title: Wafering device and method of using same
Inventor: ASHKENAZI BRIAN I
IPC: B28D1/06
Filed: 1988-10-07
Granted: 1992-12-01
Abstract: ABSTRACT        An apparatus and method for wafering an ingot of semiconductor material. Wafering blades are fabricated from one or more layers of a fiber reinforced plastic tape and coated with an abrasive material which is embedded into the exposed flat surfaces of the blades.  An assembly of such blades is used in a wafering device in which the blades are reciprocated while the ingot is plunged against the cutting edges of the blades.  The primary cutting action occurs as exposed ends of the fiber material at the blade edges contact the ingot.  The abrasive material on the blade sides provides additional side cutting action and produces a polished finish on the surfaces of the resulting wafers.
Patent CA-1322508-C (CA)
Title: Surgical fastening systems made from polymeric materials
Inventor: BEDI JAMES J
IPC: A61B17/00
Filed: 1988-11-03
Granted: 1993-09-28
Abstract: ABSTRACT      An improved surgical fastener system comprising parallel rows of staples and receivers with the receivers connected to adjacent receivers by a plurality of linkages.
Patent CA-1311142-C (CA)
Inventor: DYE JAMES S
IPC: F16H48/29
Filed: 1988-11-14
Granted: 1992-12-08
Abstract: IMPROVED TIMING OF MULTIPLE GEAR TRAIN DIFFERENTIAL            Abstract A differential gear assembly of the type used in automotive and truck axles having multiple gear trains for interconnecting axle ends is provided with gearing components having a particular relationship between tooth numbers for simplifying assembly requirements of the differential.  For example, each gear train includes a pair of combination gears (40, 50) formed with center worm wheel portions (42, 52) and first (44, 54) and second (46, 56) spur portions at either end.  The tooth numbers of the spur portions (44, 54 and 46, 56) are made an integer multiple of the tooth numbers of the worm wheel portions (42, 52) of each combination gear (40, 50).  This enables the respective gear trains to be assembled in a properly timed relationship at an expanded number of easily recognizable rotational positions.
Patent CA-1311159-C (CA)
Inventor: RICHARDSON DONALD G
IPC: B63B9/06
Filed: 1988-11-17
Granted: 1992-12-08
Abstract: ABSTRACT    A method and apparatus for the high energy rate forming of metal.  A die/mould (11) of cage-like construction and of the shape to which the sheet metal is to be formed is lined with sheet metal (18) and filled with a liquid medium.  A number of explosive charges are then placed at strategic locations within the liquid medium and detonated causing deformation of the sheet metal (18) and taking up by the metal of the shape defined by the die/mould (11).  The die/mould (11) is normally buried in a pit and supported therein during the deformation process.  The cage-like structure of the die/mould enables air trapped between the sheet metal and the die to escape during the deformation process.  A method of forming boat hulls using this method is also disclosed.
Patent CA-1276985-C (CA)
Title: Rf power control circuit
Inventor: KOBAYASHI SHINICHI
IPC: H04B1/04
Filed: 1988-11-25
Granted: 1990-11-27
Abstract: Abstract of the Disclosure An RF power control circuit for dividing a DC voltage by a plurality of resistors, selecting one of the partial voltages, and using the selected voltage as a reference voltage, thereby obtaining a multilevel RF output, has first and second switching circuits, controlled by an identical selection signal, each for selecting one of the partial voltages obtained by the resistors and outputting the selected voltage, and a selecting circuit for selecting one of outputs from the first and second switching circuits in accordance with a control signal.
Patent CA-1307491-C (CA)
Title: Wide chain conveyor assembly
Inventor: HODLEWSKY WASYLY G
IPC: B65G15/48
Filed: 1989-01-13
Granted: 1992-09-15
Abstract: ABSTRACT OF THE DISCLOSURE             A conveyor assembly comprising a frame having a longitudinal axis, a drive shaft rotatably supported by the frame and extending generally perpendicular to the axis, a plurality of drive sprockets mounted on the drive shaft for rotation therewith, all of the sprockets being axially movable relative to the drive shaft, a conveyor belt driven along the axis by the sprockets, the belt having a width measured along a line extending generally perpendicular to the axis, a center fingered transfer plate fixed to the frame, a first outer fingered transfer plate which is located on one side of the center plate and which is movable relative to the frame along a line extending generally perpendicular to the axis, and a second outer fingered transfer plate which is located on the other side of the center plate and which is movable relative to the frame along a line extending generally perpendicular to the axis.
Patent CA-1334714-C (CA)
Title: Cationic electrodepositable compositions through the use of sulfamic acid and derivatives thereof
Inventor: CORRIGAN VICTOR G
IPC: C09D5/44
Filed: 1989-04-07
Granted: 1995-03-07
Abstract: A cationic electrodepositable composition containing a resinous phase dispersed in an aqueous medium is disclosed.  The resinous phase has basic nitrogen groups which are at least partially neutralized with sulfamic acid or a derivative thereof, that is, an acid of the formula:            where R is H or C1 to C4 alkyl.  The compositions are in the form of relatively small particle size aqueous dispersions, and when used in the process of cationic electrodeposition, enable the formation of thick films with high throwpower.  Also, the use of sulfamic acid passivates the anode.
Patent CA-1306607-C (CA)
Title: Blowing lance arrangement
Inventor: EYSN MANFRED
IPC: C21C5/46
Filed: 1989-04-20
Granted: 1992-08-25
Abstract: ABSTRACT OF THE DISCLOSURE:    A  blowing  lance  to be used  for  the  treatment  of metallurgical  melts  includes a lance head having  several expansion  tuyeres directed to the bath level of  the  melt and  penetrating  a  front plate of the  lance  head.  They depart   from  at  least  one  lance  channel,   which   is peripherally  surrounded by a supply channel and  a  return channel  for  a  cooling  medium.  The  supply  channel  is separated  from the  return channel by a  flow  deflection piece  arranged above the front plate and penetrated by  at least  one  connecting channel connecting  the  supply  and return  channels  and provided for the cooling  medium.  In order  to  considerably increase the service  life  of  the blowing lance and to avoid leakages in the front plate,  at least one coolant secondary channel is provided in addition to  the  at  least  one  connecting  channel,  which,  upon branching  off  a partial stream of the coolant flowing  to the connecting channel,  diverts this partial stream into a flow  direction  deviating from the flow direction  in  the connecting  channel  and whose mouth is  directed  directly towards the center of the front plate.
Patent CA-1315950-C (CA)
Title: Tapered dovetail mortise and tenon joint structure
Inventor: WINTER AMOS G IV
IPC: E04C3/00
Filed: 1989-05-01
Granted: 1993-04-13
Abstract: TAPERED DOVETAIL MORTISE AND TENON JOINT STRUCTURE     ABSTRACT OF THE DISCLOSURE A tapered dovetail mortise and tenon joint is formed within typically a post and beam or within two Joists which intersect perpendicular to each other. The tapered dovetail shaped mortise portion cavity is shaped to interfit with a dovetail shaped tenon portion. The tenon portion has incorporated therein a plurality of acute angles which permit easy assembly, cause precise alignment and cause forces to be created when components are connected using the joint which forces tend to bring the mated components into very rigid tightly interfitted assembled relationship. The joint, when assembled, is not visible because of the unique configuration of the mortise and tenon portions. A very large load bearing capability is inherent in the joint partly because of the large mating surface incorporated into the side surfaces and the bottom surfaces and also partly because the integrity of the chords and the web of the "I-Beam" cross section of the components is not violated. The acute angle associated with the side surfaces, the acute angle associated with the bottom surface and the acute angle associated with the outward end surface, all of the tenon portion, and the related surfaces and angles of the mortise portion all cooperate in such a manner as to force the joint more tightly together as a downward loading is increased.
Patent CA-1312422-C (CA)
Title: Compound timber-metal stressed decks
Inventor: MOZINGO RALPH
IPC: E04C3/14
Filed: 1989-07-28
Granted: 1993-01-12
Abstract: A B S T R A C T This invention relates to a bridge deck comprised of longitudinally positioned timbers having metal plates inserted between the timbers.  Trans-versely positioned rods apply compressive forces to the timbers and metal plates.  Resulting friction causes bridge deck components to behave as a single unit.  The metal plates are inserted between timbers of various sizes and lengths of the stressed deck bridge.  Proper transverse stressing of component parts by use of high strength steel rods or tendons allows shear and flexural stresses, caused by applied loads, to be transferred between plates and timbers by friction alone without glue or metal fasteners.  De-flections, caused by applied loads, are greatly reduced when properly designed plates are employed.  Without plates, the use of stressed timber deck bridges, under today's highway loads, is limited to short spans with large timber dimensions.  Such structures are handicapped economically when compared with other types of bridge systems such as prestressed concrete or composite concrete-steel bridges.  Properly designed and inserted plates have been shown to greatly improve the structural performance of stressed timber decks.
Patent CA-1327065-C (CA)
Inventor: SAHAKIAN JACK A
IPC: H01B11/18
Filed: 1989-08-11
Granted: 1994-02-15
Abstract: ABSTRACT OF THE INVENTION     Coaxial electric cable and simplified process for making it, wherein large gauge center conductor is wrapped with extruded strands of porous expanded polytetrafluoroethylene (EPTFE), drawn through a die to reduce diameter and voids, tape-wrapped with porous EPTFE, sintered, and shielding and extruded jacketing applied.
Patent CA-1336121-C (CA)
Title: Antibacterial natural rubber articles
Inventor: MILNER RICHARD
IPC: A41D19/00
Filed: 1989-08-23
Granted: 1995-07-04
Abstract: A method for the manufacture of an antimicrobial rubber article is described. The method comprises incorporating an effective amount of an antimicrobial agent into the natural rubber after the article has been shaped but before the article has been cured.          Preferably the method comprises dipping the shaped article in its green state into an aqueous solution of a ionic antimicrobial agent such as chlorhexidine digluconate and then curing. Articles in the form of gloves are described. Gloves incorporating the antimicrobial agent may be used as surgeon's gloves or examination gloves.
Patent CA-1334540-C (CA)
Inventor: BYRNE NORMAN R
IPC: H05K5/02
Filed: 1989-09-26
Granted: 1995-02-21
Abstract: A retractable power center (100) for providing con-veniently located electrical power source receptacles (202) is adapted to be mounted in a work surface (104) such as a desk top or similar article of furniture.  The power center (100) is manually operable and includes a stationary upper housing (128) received within a slot (122) formed in the work surface.  In addition, a manually movable and slidable power carriage (170) is utilized to mount the receptacles (202).  In response to manually exerted forces on the power carriage (170), the carriage can be extended upward into an open position. Relatively small bosses (228) extend laterally from lateral sides of the carriage (170) and provide a means to support the carriage (170) in its extended position, with the bosses (228) resting on the top portion of the housing (128).  Still further, ledges (230) are inte-grally formed on the lateral sides of the carriage (150) near the bottom portions thereof, so as to prevent any further additional movement of the carriage (170) up-wardly relative to the housing (128).