baber/WOPTO huggingface dataset:
Patent CA-1312100-C (CA)
Title: Trailer hitch
Inventor: GALDES EMMANUEL
IPC: B60D1/14
Filed: 1988-06-20
Granted: 1992-12-29
Abstract: IMPROVED TRAILOR HITCH                ABSTRACT OF THE DISCLOSURE           A trailer hitch adapted to be attached to a towing vehicle and to be removably connected to a vehicle to be towed.  The trailer hitch includes a tubular housing open at the rear end thereof and adapted to be rigidly attached to the towing vehicle. A hitch bar is slidably mounted in the housing and comprised of a front segment slidably received in the housing and a rear segment pivotally mounted on the rear end of the front segment for rotation about a generally vertical axis.  A hitch ball is mounted on the rear end of the rear segment and is pivotal through an angle of approximately 180°, i.e., an angle of 90° on either side of a center line extending longitudinally of of the hitch bar.  The housing has a pair of side bolts shiftably mounted thereon for insertion into respective side grooves or recesses in the sides of the front segment of the hitch bar.  The bolts limit the rearward travel of the hitch bar relative to the housing and allow forward movement of the front segment of the hitch bar until the inner ends of the bolts enter recesses in the side of the front segment of the hitch bar to thereby lock the hitch bar to the housing. A shaft is removably coupled to the rear segment and the hitch bar when the hitch ball is in its forwardmost position to thereby positively lock the hitch bar to the pivotal housing during a towing phase of the use of the trailer hitch.
Patent CA-1288868-C (CA)
Title: Apparatus and method for expediting subtraction procedures in a carry/save adder multiplication unit
Inventor: BENSCHNEIDER BRADLEY J
IPC: G06F7/508
Filed: 1988-06-29
Granted: 1991-09-10
Abstract: ABSTRACT    In a multiplier unit implemented with carry/save adder  stages  and  executing  a  modified  Booth algorithm, the signals, required to complete the 2's complement  in  order  to  perform  a  subtraction operation during  the multiplication  procedure using carry/save  adder  cells,  are  entered  in  the  first carry/save stage in the appropriate carry/save cell positions.   In  this  manner,  one  less  signal  is processed by the time-critical least significant cell associated with each carry/save adder stage, thereby reducing the overall time delay associated with the multiplier unit and accelerating the multiplication operation.
Patent CA-1316413-C (CA)
Title: Internal circulating fluidized bed type boiler and method of controlling the same
Inventor: OHSHITA TAKAHIRO
IPC: F22B31/00
Filed: 1988-06-30
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE         An internal recycling type fluidized bed boiler which comprises:  a primary fluidized bed incinerating chamber constructed by an air diffusion plate, and an inclined partition wall provided above the portion of the diffusion plate where the mass flow of the air injected from the diffusion plate is greater than that from the other portion so as to interfere with the upward flow of the fluidizing air injected from that portion and deflect it towards the portion above the diffusion plate where the mass flow of gas injected is smaller; and a thermal energy recovery chamber formed between the inclined partition wall and the side wall of an incinerator; the inclined partition wall being inclined by 10-60° relative to the horizon and arranged such that the length of its projection in the horizontal direction is 1/6-1/2 of the horizontal length of the incinerator bottom, and a method of controlling the above fluidized bed boiler with respect to the amount of thermal energy recovered from the thermal energy recovery chamber by regulating the amount of air injected from the diffuser in the thermal energy recovery chamber based on demands from the user side utilizing the recovered thermal energy, the fuel feeding amount to the primary fluidized bed incinerating chamber being controlled based on the temperature in the primary fluidized bed incinerating chamber.
Patent CA-1323014-C (CA)
Inventor: FINLEY DAVID A J
IPC: B02C2/06
Filed: 1988-07-07
Granted: 1993-10-12
Abstract: ABSTRACT         A crushing apparatus for frangible or friable material using a gyratory action.  The crushing apparatus includes a bowl having a chamber for receiving said material and a central discharge opening disposed at the base thereof.          The discharge opening defines a throat having a circumferential wall.  A crushing head has a gyratory axis and is disposed generally centrally within the discharge opening having a crushing face in spaced relation to said wall of said throat defining an annular nip between said wall and the crushing face of said head.  The apparatus includes a drive assembly for driving the crushing head within the bowl.  In operation the crushing head is supported at its opposite axial ends by a support assembly disposing the crushing head at an offset position relative to the central axis of the bowl about a fixed pivot point at the intersection of the gyratory and central axes to permit rotational and oscillatory motion of the head about the point.  The fixed pivot point is located proximate to, or coincident with, the bottom of the crushing head such that oscillation of the top of the crushing face is caused to be predominantly in a direction generally transverse to the central axis and oscillation of the bottom of the crushing face is caused to be predominantly in a direction parallel to the central ax is.
Patent CA-1334744-C (CA)
Title: Method for preparing lubricated surfaces
Inventor: HU CAN B
IPC: C08J7/04
Filed: 1988-07-11
Granted: 1995-03-14
Abstract: A method  for  lubricating  a  low surface energy polymeric  surface  includes  plasma  treatment  of  the surface.   A  film  of  a  polysiloxane  lubricant  is applied to the plasma-treated surface to give an even coating of  the  lubricant  which  is  stable  for  a protracted period of time.
Patent CA-1304280-C (CA)
Title: Lightweight wheelchair having swing-away footrest assembly
Inventor: OKAMOTO JAMES
IPC: A61G5/12
Filed: 1988-11-15
Granted: 1992-06-30
Abstract: ABSTRACT A lightweight wheelchair  (10)  including a front frame  (27),  footrest assembly  (33), and mounting means  (34,48)  for mounting the footrest assembly (33) to the frame (27) for pivotal movement between a position in front of the chair and a position beside the chair is disclosed.   The footrest assembly (33) is mounted to a front frame member (27) of the chair by a pivotal joint (34) and is further supported by a support bracket (48) which engages a side of the front frame member (27) below the pivotal joint (34).  Mounted to the bracket (48) and front frame member  (27) are cooperating sub-assemblies (56,57) which latch the footrest assembly (33)  in a position in front of the chair and simultaneously bind or cam-down the inner end (49) of the bracket (48) against the side of the vertical front frame member (27).   The latch assembly (52) can be operated by one of relatively limited manual dexterity, and the footrest assembly (33) can be removed from the wheelchair  (10) by unlatching, rotating and lifting the footrest assembly (33).  A mounting block (23) for securement of the seat frame (11) of the wheelchair (10) is also disclosed.
Patent CA-1310203-C (CA)
Title: Snaplock retainer mechanism for insulated wall construction
Inventor: LONG ROBERT T
IPC: E04C2/288
Filed: 1988-12-16
Granted: 1992-11-17
Abstract: ABSTRACT OF THE DISCLOSURE An improved snap lock retainer mechanism for insulated wall construction apparatus for pouring a composite wall structure which includes a pair of outer poured concrete layers separated by a high density foam insulating panel mounted between the concrete layers and which includes a number of tying mechanisms for holding the insulated layer in place while the concrete is being poured and hardened wherein the holding means are formed of plastic rods upon which two plastic receivers are directly injection molded onto the rod.  One of the receivers has a single notch and the other receiver has multiple notches.  One of two snap rings which are identical goes first over the single notch receiver and is locked in place and then the rod is extended through the insulating panel and a second snap ring is attached to the multiple notches in a ratchet effect on the multiple notched plastic receivers so as to lock the board in place so that the concrete can be poured.
Patent CA-1307267-C (CA)
Title: Hmg-coa reductase inhibitors
Inventor: DUGGAN MARK
IPC: A61K31/22
Filed: 1989-01-05
Granted: 1992-09-08
Abstract: TITLE OF THE INVENTION NOVEL HMG-CoA REDUCTASE INHIBITORS            ABSTRACT OF THE DISCLOSURE         Novel 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) rsductase inhibitors are useful as antihypercholesterolemic agents and are represented by the following general structural formulae (I) and (II):                                       (I)          (II)
Patent CA-1307237-C (CA)
Title: Quick connect disconnect wheel cradle arrangement for wheel lift towing systems
Inventor: HOLMES GERALD E
IPC: B60P3/12
Filed: 1989-02-02
Granted: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE         Wheel cradles for a wheel  lift towing system are quickly  and easily coupled  to  or uncoupled  from  opposing  ends of  a  cross  arm assembly associated with a towing  vehicle.  The cradles are coupled  to the cross  arm  by sliding  the  cradles laterally  in  a  substantially horizontal plane from outside the ends  of the cross arm.  Such  lateral insertion facilitates coupling of the wheel cradles to the cross arm  in situations of  difficult  access  to the  towed  vehicle's  wheels,  for example, when the  towed vehicle is  positioned with two  of its  wheels abutting a curb.   An arrangement  for coupling a  back-up safety  line, such as a safety chain, between  the towing and towed vehicles  provides additional protection  against  accidental  dislodgement  of  the  towed vehicle from the towing vehicle.
Patent CA-1293987-C (CA)
Title: Hot water control
Inventor: VANDERMEYDEN TOM R
IPC: F23N5/20
Filed: 1989-04-03
Granted: 1992-01-07
Abstract: HOT WATER CONTROL     ABSTRACT OF THE DISCLOSURE         A system  is  described  for  use  with  a hot water supply for   hotels,   apartment   buildings   and  similar multi-unit  structures,  which  controls  the  temperature T1 of  water at the outlet of a water tank to make it close to a desired  temperature  DTEMP  that  is low during times of low demand  to  save  energy  and  which is high at times of high demand  to  assure  adequate  hot  water  at  all  times. The desired  temperature  at  the tank outlet, DTEMP, is adjusted according  to  the  sensed  demand  for  hot  water during an immediately  preceding  period  of given duration, such as 45 minutes.  The  circuitry is used in parallel with an existing Aquastat on a commercial tank type water heater.
Patent CA-1312966-C (CA)
Inventor: GADEKEN LARRY L
IPC: E21B47/10
Filed: 1989-04-21
Granted: 1993-01-19
Abstract: ABSTRACT     A method of radioactive well logging for use in well operations wherein hydraulic fracturing material, including radioactive isotopes, is injected from a steel cased well bore 31 into surrounding earth formations 33.  Low energy gamma ray emitting radioisotopes are selected for tagging the liquids phase of the fracturing material and high energy gamma ray emitting radioisotopes are selected for tagging the solids phase.  The relative amount of low energy radioisotope material inside the well bore 31 relative to the amount out-side the casing 35 is determined to minimize the interfering effects of borehole tracers in determining concentrations of the high energy tracers in the formations.  The procedure includes detecting the intensity of gamma radiation from the tracers in the borehole and surrounding formations by a detector 38 in the borehole in proximity to the injection zones and obtaining data representative of the radiation intensity.  The intensity data is then separated into an observed energy spectrum from which is obtained observed energy spectrum count rates of gamma radiation in an energy region associated with gamma radiation emitted by the low energy tracer material in at least two relatively low energy ranges, a first P of which is highly sensitive to pho-toelectric attenuation by iron in the well casing and a second M of which is a higher energy range primarily sen-sitive to Compton scattered gamma rays and much less sen-sitive to photoelectric absorption by iron.    These count rates are then combined to obtain an observed photoelectric ratio, Rp = ?, of the low energy tracer.  Count rates of radiation are then obtained in all the energy ranges associated with gamma radiation emitted by the low energy tracer to obtain the total elemental concentration of the low energy tracer in the borehole and the formations.  The amount the low energy tracer in the borehole Tr(Bor) relative to the amount of said low energy tracer outside the casing is determined by a relation involving the observed photoelectric ratio Ph Tr(Obs) of low energy tracer, the total observed concentration of the low energy tracer Tr(Tot), and the low energy photoelectric ratios, Ph Tr(Bor) and Ph Tr(For), calibrated for the tracer in the borehole and in the for-mation, respectively.
Patent CA-1335089-C (CA)
Inventor: MOLL KARL-ANDREAS
IPC: B65H20/04
Filed: 1989-05-18
Granted: 1995-04-04
Abstract: The invention relates to a process and to apparatus for the defined dispensing and application to a substrate surface of sections having equal and/or unequal lengths of a tape, particularly of a pressure-sensitive or thermally activatable adhesive tape, to a substrate surface.  To this end, the tape is continuously adhesively affixed to the surface. Starting at an initial placement position; before the leading edge (in the direction of application) of the tape section is secured, it is severed partly, leaving at least one web of material, at a predetermined distance from the trailing edge thereof by a specially configured cutting mechanism.  After the subsequent adhesive placement of the entire tape section on said surface, the tape is separated at said at least one web of material by utilizing a braking effect as the tape or the tape dispensing and applying apparatus continues to move relative to the surface.
Patent CA-1339966-C (CA)
Title: Process for the production of multicoat protective and/or decorative coatings on substrate surfaces
Inventor: HILLE HANS-DIETER
IPC: C09D175/04
Filed: 1989-07-25
Granted: 1998-07-21
Abstract: The invention relates to a basecoat/clearcoat process in which the basecoat composition used contains as a film former a polyurethane resin which can be prepared by preparing an intermediate from (A) a mixture obtained from 10 to 90 mol % of linear polyether diols and 90 to 10 mol % of polyester diols, (B) diisocyanates, (C) compounds which contain two groups reactive toward isocyanate groups, at least some of these compounds having at least one group capable of forming anions, and the free isocyanate groups of the said intermediate are then reacted with (D) polyols containing at least three hydroxyl groups, and the reaction product obtained in this manner is transferred into an aqueous base, wherein a) the polyester diol is prepared from diols and an acid component which consists of 60 to 100  by weight of aliphatic dicarboxylic acids of more than 18 carbon atoms and of 40 to 0 % by weight of aliphatic dicarboxylic acids of 2 to 18 carbon atoms, b) the equivalent ratio of the NCO groups to the total of the OH groups of (A) and the reactive groups of (C) is 2:1 to 1.05:1 and c) the equivalent of the OH groups of the component (D) to the NCO groups of the intermediate is 0.5:1 to 4:1.
Patent CA-1340142-C (CA)
Title: Flexibilizer combinations for epoxy resins
Inventor: MUELHAUPT ROLF
IPC: C08L63/00
Filed: 1989-07-26
Granted: 1998-11-24
Abstract: The invention relates to compositions containing A) a liquid copolymer based on butadiene and at least one polar, ethylenically unsaturated comonomer, and B) a polyether prepolymer capped with hydroxyarylcarboxylic or hydroxyaralkylcarboxylic acids, or a capped polyester, polythioester or polyamide containing polyether segments.  The phenolic hydroxyl group in component B) can also be etherified with epichlorohydrin and this product can be converted to a thiairane, if desired, or the phenolic hydroxyl group can be reacted with cyanogen halide to form a cyanate group.            The stock compositions can be used in combination with epoxy resins to manufacture structural adhesives or sealing compounds.
Patent CA-1280580-C (CA)
Inventor: MODRAK JAMES P
IPC: D04H1/42
Filed: 1989-09-15
Granted: 1991-02-26
Abstract: SOFT WATER-PERMEABLE POLYOLEFINS NONWOVENS HAVING OPAQUE CHARACTERISTICS     ABSTRACT OF THE DISCLOSURE     A method for controlling opacity, softness, and strength of polyolefin fiber-containing nonwoven material and corresponding nonwoven material, obtained by utilizing at least 25%, based on web weight, of polyolefin filament (a) having an original spun denier not exceeding about 24 dpf, (b) having a final drawn denier of not less than about 1 dpf, and (c) delta, diamond, or mixed delta and diamond cross-sectional configurations alone or combined with fibre having round or other cross sectional configuration.
Patent CA-1319989-C (CA)
Title: Mixed-mode-simulator interface
Inventor: VLACH MARTIN
IPC: G06J1/00
Filed: 1989-09-28
Granted: 1993-07-06
Abstract: ABSTRACT OF THE DISCLOSURE                A mixed-mode-simulator interface synchronizes, at non-regular intervals, a system simulator which includes an analog realm and an event-driven realm, wherein both simulators perform a simulation on a single, mixed-mode system.  The interface uses an error-driven procedure to time advance the analog realm, and uses events in the analog realm to time advance the event-driven realm.  Polynomial interpolation rollback is used to adjust analog realm time location.
Patent CA-1313609-C (CA)
Title: Interlocked remote oil filter and drain
Inventor: DEGRAZIA TOREY W JR
IPC: F01M11/04
Filed: 1989-09-28
Granted: 1993-02-16
Abstract: ABSTRACT OF THE INVENTION     An improved interlocked remote oil filter and drain provides a system for draining oil from the oil sump of an engine.  The system comprises an improved interlock that includes an interlock tab movable between a drain position to permit draining of the engine oil when the oil filter is not in place and a safe position to prohibit draining of the engine oil when the oil filter is in place.  The interlock tab allows the convenient use of different sizes and shapes of oil filters.
Patent DK-150447-C (DK)
Inventor: REGINATO FRANCESCO
IPC: A63H19/24
Filed: 1982-05-24
Granted: 1988-01-04
Abstract: A modular control panel [10, 11] for controlling the switching operations in a miniature- or model-railway- line has grooves [13] which reproduce the railway tracks, contacts [14, 15] being applied to the groove bottoms in the neighborhood of railway crossings, and is improved by the provision of a rotatable direction indicator (16, 17, 18) placed at every line intersection so as to mask either branch (13) of a line bifurcation with one of its halves (18), the other half of said indicator (16) defines the correct direction.
Patent FI-64026-C (FI)
Inventor: MAEKIMAA TAPANI
IPC: H02M7/523
Filed: 1981-02-13
Granted: 1983-09-12
Abstract: The specification relates to an inverter circuit comprising a source of direct voltage which itself has a center-tap or which has a center-tap in a voltage divider circuit connected across the source, and two serially connected thyristor switches which in the forward direction are connected across the source of direct voltage and each of which has an RC protection (R1, C1) connected across the thyristor (T1 ; T2) and a commutation diode (D1 D2) connected antiparallel to the thyristor and a reactor (Lk) connected in series with the thyristors, in which case a center branch which contains at least one reactor (Lp) and one capacitor (C) branches from a point between the thyristor switches to the center-tap of the source of voltage. The reactors (Lk) which are in series with the thyristor switches are saturable reactors as known per se, and the reactor (Lp, L1) contained in the said center branch consists at least in part of a saturable reactor (L11) and a fixed reactor (Lp).
Patent FI-74552-C (FI)
Inventor: VAN DE VORLE WILHELMUS JOSEF M
IPC: G03C1/60
Filed: 1982-11-17
Granted: 1988-02-08
Abstract: A diazotype material is disclosed the light sensitive layer of which comprises a particular film forming binder (a partially hydrolyzed polyvinyl acetate) and a special kind of silica filler. Through this specific combination of binder and filler a diazotype material with a good wet-rub-resistance and with good writing and drafting properties is obtained. 
<??>Upon use of a transparent support this material may be used as a so-called intermediate original.
Patent FI-74780-C (FI)
Inventor: ROCKWOOD ROBERT E
IPC: F16J15/18
Filed: 1983-08-12
Granted: 1988-03-10
Abstract: A centrifugal pump comprising a pump housing, seal means for sealing the wall of said pump housing through which the shaft of the propeller extends, and a seal housing for supporting said seal means. Said seal housing is demountably connected to said wall and has a removable wall portion for permitting access to the seal housing.
Patent FI-85612-C (FI)
Inventor: SCHMIDT KARL HEINZ
IPC: E05C17/30
Filed: 1988-03-22
Granted: 1992-05-11
Abstract: A limiting stop for the swinging angle of an arm which is pivotally mounted on a fixed structure. The stop consists of a pair of parallel links which are connected for relative sliding motion between at contracted position and an extended position. At least one of the links has an elongated slot and the other link has a laterally projecting tongue which extends into the slot for movement along the slot. One end of the slot has a stopping surface which is engaged by the tongue when the links are in the extended position for determining the swinging angle of the arm.
Patent FI-92650-C (FI)
Inventor: POTTS RUSSELL OWEN
IPC: A61K47/00
Filed: 1989-02-27
Granted: 1994-12-27
Abstract: A transdermal flux enhancing pharmaceutical composition for transdermal administration to a human or lower animal subject comprising a safe and effective amount of a pharmacologically active compound or a prodrug thereof, an aqueous solvent system comprising from about 15 to 75% by volume of one or more water miscible solvents, and a penetration enhancer selected from certain 1-alkylazacycloheptan-2-ones and cis-olefin compounds of the formula  CH3(CH2)xCH=CH(CH2)yR<3> where R<3> is CH2OH, CH2NH2 or COR<4> and R<4> is OH or (C1-C4)alkoxy, x and y are each an integer from 3 to 13 and the sum of x and y is from 10 to 16; methods for their use in treating various illnesses in a human or lower animal by transdermal administration of said composition.
Patent FI-91496-C (FI)
Inventor: NEWKIRK MARC STEVENS
IPC: B22D19/14
Filed: 1989-10-17
Granted: 1994-07-11
Abstract: The present invention relates to the formation of a macrocomposite body by spontaneously infiltrating a permeable mass of filler material or a preform (4) with molten matrix metal (2) and bonding the spontaneously infiltrated material to at least one second material such as a ceramic or ceramic containing body and/or a metal or metal containing body. Particularly, an infiltration enhancer and/or infiltration enhancer precursor and/or infiltrating atmosphere are in communication with a filler material or a preform (4), at least at some point during the process, which permits molten matrix metal (2) to spontaneously infiltrate the filler material or preform (4). Moreover, prior to infiltration, the filler material or preform (4) is placed into contact with at least a portion of a second material such that after infiltration of the filler material or preform (4), the infiltrated material is bonded to the second material, thereby forming a macrocomposite body.