baber/WOPTO huggingface dataset:
Patent CA-2006230-C (CA)
Title: Method and apparatus for validating character strings
Inventor: LITTLEWOOD TIMOTHY J
IPC: G06F3/01
Filed: 1989-12-20
Granted: 1993-10-26
Abstract: ABSTRACT OF THE DISCLOSURE         In a method of, and apparatus for validating character sequences,  for  example  strings  of  characters  generated  by keyboards or keypads in telephone systems, computers, and the like,  increased  speed  and  reduced  memory  requirements  are achieved by comparing the characters with a database representing valid sequences of characters, the database comprising one or more segments each comprising valid character sequences.   A potential range of characters is extrapolated from a character of the input character sequence taking into account possible values of possible succeeding characters.  This potential range of sequences is than compared with a database segment. If there is intersection between the potential range and one of the valid character sequences, and there is no succeeding character in the input  character  sequence,  the  input  character  sequence  is determined to be valid.  If intersection exists and there is a succeeding character, a second potential range of sequences that is a subset of the first-mentioned potential range of sequences is extrapolated from the succeeding character.   This second potential range of sequences is compared with the database to determine whether or not there is intersection between the second potential range of sequences and a the valid character sequence range.   When the step of determining  intersection has been performed for each character in the input sequence, the input character sequence is indicated to be complete.
Patent CA-2007276-C (CA)
Title: Decorative light holder
Inventor: GARY LONNIE F
IPC: F21S4/00
Filed: 1990-01-05
Granted: 1994-10-04
Abstract: Decorative light holders for decorative light and bulb  assemblies,   comprising  a  socket  support  member projecting  substantially  perpendicularly  from  the  base member to frictionally engage the socket of a decorative light, and an adhesive pad adapted to secure the rearwardly facing surface of the base member to a substantially planar underlying support surface.
Patent CA-2009234-C (CA)
Title: Base station emulator
Inventor: KAEWELL JOHN D JR
IPC: H04J3/06
Filed: 1990-02-02
Granted: 1994-10-04
Abstract: A wireless digital telephone system containing at least one emulated base station plus one or more subscriber stations, the emulated base station comprising a station similar to the subscriber station but having the capability of initi-ating a synchronization process whereby it is enabled to assign time slots to the subscriber station within the frame pattern of an amplitude signal by means of monitoring for positive edges in the signal.
Patent CA-2013428-C (CA)
Inventor: KOESSLER JUERGEN REINER
IPC: H01R13/447
Filed: 1990-03-29
Granted: 1996-01-16
Abstract: A protective device for an electrical outlet.  The device has a back plate having at least one opening for the outlet, opposed sides and ends.  There is a pivotal cover for the opening and a catch on the pivotal cover.  The catch is urged outwardly.  A recess on the back plate receives the catch when the catch is urged outwardly to hold the cover member over the opening.
Patent CA-2017682-C (CA)
Inventor: EISENBERG HELMUT
IPC: E01B9/30
Filed: 1990-05-28
Granted: 2000-02-22
Abstract: The invention concerns a rail fastener on concrete ties (4) or the like by means of resilient tension clamps (6) of steel rods in the form of a W and angled guide plates (3) for the rail base (la). This so-called HM rail fastener is inventively improved by a special shaping of the tension clamp and angled guide plate, to simplify the securing of the rail on the concrete ties, in that the rotation of the elastic strainers which was previously necessary in HM construction when passing from the preassembly to the assembly position is omitted. This is achieved in that the angled guide plate (3), which is provided with a rib (3a) extending longitudinally to the rail foot for abutment on the rail foot (1 a), contains in this rib special recesses (3b) for the reception and retention of the free ends of the tension clamp in the preassembly position. A tension clamp (6) has outer legs (tib) which with expansion of the spacing from the inner legs (6d) against the rail foot (1a) become broader and their free ends (6a) end outside the middle portion (6e) and wherein the inner legs (6d) of the tension clamp (6) which surround the tie screw (5) are designed so that in the preassembly position they abut with their center portion (6e) the shaft (5a) of the tie screw, while the head (5b) of the tie screw (5) overlaps the inner leg (6d) in the assembly position. In a special embodiment, the tension clamp is so designed that its center portion permanently surrounds the tie screw (5), and its inner leg portions are brought together except for a small spacing.
Patent CA-2017999-C (CA)
Title: Interlocking paving stone and ground cover formed thereof
Inventor: HAIR ROBERTA A
IPC: E01C5/06
Filed: 1990-05-31
Granted: 1995-03-14
Abstract: A paving material includes a plurality of identical paving stones which are similarly oriented and interlock to form a ground cover which completely covers the ground without being combined with stones of other shapes.  The shape of the stones is defined by an array of concentric circle pairs centered at the intersections of two sets of parallel and equally spaced lines.  The circles intersect so as to form two shapes, one shape being a segment of a solid cylinder with a radius that of the inner circle and the other being a segment of an open annular ring lying between an inner and an outer circle.  Each stone includes one of the solid cylindrical segments integrally joined with one or two parts of an annular segment.          Optionally, a false joint is marked by an arcuate groove in the upper surface of each stone.
Patent CA-2035373-C (CA)
Title: Bulk loading method and apparatus
Inventor: KREIN REUBEN
IPC: B65D90/04
Filed: 1991-01-31
Granted: 1999-02-23
Abstract: A flexible bulkhead (36) is provided that includes a plurality of horizontal poles (38) disposed in channels (54) and (56) on opposite sides of a container (10).  Webbing straps (50) and (52) are operable to space the poles (38) a predetermined distance apart when installed between hooks on either side of the container opening and at the upper and lower corners therein.  When pulled taut, the webbing straps (50) and (52) maintain the material of the flexible bulkhead (36) in a taut configuration.  Flaps (66) and (68) extend from the peripheral edges on the sides of the flexible bulkhead (36) and inward to the container (10).  A liner (16) is then disposed in the container (10) and inflated with a vacuum system through a manifold (42) and a blower (22).  The flaps (66) and (68) prevent deformation of the flexible material of the bulkhead (36) to minimize air from flowing under and around the flexible bulkhead (36).
Patent CA-2035739-C (CA)
Inventor: HUNG LIANG-SUN
IPC: C30B29/22
Filed: 1991-02-05
Granted: 1995-06-13
Abstract: An electrically conductive article is disclosed comprised of a support, a barrier and a heavy pnictide mixed alkaline earth copper oxide crystalline coating.  The support is an austenitic metal alloy of chromium and one or more group VIII period 4 metals, and the barrier is comprised of a high density hafnia layer.
Patent CA-2048427-C (CA)
Title: Cooling system alkaline cleaning solution comprising polyhydroxy mono or di-carboxylic sugar acids
Inventor: CONVILLE JOHN J
IPC: C11D3/00
Filed: 1991-08-05
Granted: 1999-09-07
Abstract: Cooling system cleaning solutions containing an EDTA salt, a polyhydroxy mono- or dicarboxylic sugar acid, and a soluble nitrate salt are effective in removing scale, corrosion, and solder bloom from cooling systems.
Patent CA-2053869-C (CA)
Title: Conveyor arrangement for loose material, especially blasting materials for sand-blasting installations
Inventor: WINTER ALFRED
IPC: B24C7/00
Filed: 1991-03-01
Granted: 1995-11-21
Abstract: A conveying installation for loose material, especially blasting materials for sand-blasting installations, includes on the hall floor, respectively, blast chamber floor at least one longitudinal conveyor (1, 2, 3, 4) and at right angle thereto at its conveyor end in the same plane a cross-conveyor (5).  These conveyors (1, 2, 3, 4, 5) operate by means of conveyor members (27, 28) which are suspended in a pneumatically driven reciprocating frame (19, 24, 33).  The frames (19, 24, 33) include lateral girders (20, 21; 31, 32) which are connected by webs (22).  The frames run on rollers (11 to 18, 34, 36) which project from boundary profiles (6, 7, 8, 9, 10).  The latter delimit laterally the longitudinal conveyors (1, 2, 3, 4).  The cross-conveyor (5) includes a boundary profile (35) with rollers (34) only at the side opposite the longitudinal conveyors whereas on the side facing the longitudinal conveyors the rollers (36) are provided at the end faces of the boundary profiles (7, 8, 9) of the longitudinal conveyors.  For creating a free passage from the longitudinal conveyors to the cross conveyor, the frame girder (31) thereof which faces the longitudinal conveyors, is constructed with a short vertical leg (Figure 1).
Patent CA-2054193-C (CA)
Inventor: INABAYASHI YOSHIHITO
IPC: B23K35/28
Filed: 1991-03-11
Granted: 1998-12-22
Abstract: A brazing sheet having an Al alloy core material one or each of whose surfaces is clad with a brazing material, the brazing sheet being excellent in vacuum brazing ability suitable for the manufacture of aluminum heat exchangers that have a hollow structure. The brazing material is an Al-Mg-Si alloy brazing material comprising 0.6 to 1.8 wt% of Mg, 0.6 to 20.0 wt% of Si, and the balance of Al and inevitahle impurities, and having, in its metal texture, 1,000/mm2 or more Mg2Si particles 2 to 5 .mu.m in diameter, with the particles being assumed to be spheres, and 3,000/mm2 or more Si particles 6 .mu.m or less in diameter, with the particles being assumed to be spheres.
Patent CA-2055463-C (CA)
Inventor: SCHINAZI RAYMOND F
IPC: A61K31/5415
Filed: 1990-05-11
Granted: 1997-09-30
Abstract: A method for using thiazine and xanthene dyes to selectively inactivate or inhibit intracellular replication of specific viruses, especially human immunodeficiency virus. Examples of useful xanthine dyes are rose bengal and eosin Y. A preferred thiazine dye is methylene blue. The dyes interfere with transcription and translation of viral nucleic acid. Light penetrating the skin to the capillaries at the surface can be used to enhance the activity of the dye.
Patent CA-2057214-C (CA)
Title: Ink jet head cartridge, ink tank cartridge using degradable plastic as part of construction or package thereof and ink jet apparatus having fitting part for the cartridges
Inventor: UJITA TOSHIHIKO
IPC: B41J2/175
Filed: 1991-12-06
Granted: 1999-03-30
Abstract: An ink tank comprising a bag type container which store ink and a case which houses the container, wherein at least one part of the ink tank is made of a degradable plastic.
Patent CA-2058603-C (CA)
Title: Renin inhibiting polyhydroxymonoamides
Inventor: ANDERSON PAUL CATES
IPC: C07D277/36
Filed: 1991-12-30
Granted: 1998-02-17
Abstract: Disclosed herein are compounds of the formula:            R1CH2CH(X)CH(Y)CH(Z)CHR2C(O)NHCHR3CH(OH)CH(OH)R4 wherein R1  is a terminal unit, for example lower cycloalkyl  or phenyl;   R2  is,  for example,  an optionally  substituted  alkyl,  cycloalkylmethyl, benzyl, 4-imidazolylmethyl, 2-thienylmethyl or 4-thiazolylmethyl; R3 is alkyl, cycloalkylmethyl or an optionally  substituted  benzyl;  R4  is  alkyl  or cycloalkyl; and X and Y each is hydroxy and Z is hydrogen,  or X and Z each is hydroxy and Y is hydrogen; with the provisos that  (a) the carbon atom bearing R2 has the "R" configuration except when R2 is 2-thienylmethyl or 2-thiazolylmethyl, X and Y each is hydroxy and Z is hydrogen, then the carbon atom bearing R2 has the "S" configuration; (b) the carbon atoms bearing R3 and R4 each has the "S" configuration; and (c) the carbon atom located between the last-said two carbon atoms has the "R" configuration.     The  compounds  inhibit  renin activity and are indicated for the treatment of hypertension and congestive heart failure.
Patent CA-2064090-C (CA)
Title: Purification of hydrogen peroxide
Inventor: CROFTS RHONA DOROTHY
IPC: C01B15/013
Filed: 1990-07-18
Granted: 2000-08-15
Abstract: The electronics industry demands that hydrogen peroxide for use therein be purified to very low levels of impurities, currently at the level of a few ppb for some impurities, or even lower. However, existing methods are either inherently unsafe because they bring concentrated hydrogen peroxide into contact with a concentrate of transition metal decomposition agents for peroxide and a purification resin which acts as a source of carbon, or are unable to attain the desired impurity level.      In the instant purification process, the hydrogen peroxide solution is passed through a membrane having a very small pore size which contains an ion exchange resin that is capable of removing alkali and alkaline earth metal ions from solution. The feed solution is characterised in that is contains no more than a small proportion by weight of transition metals that catalyse hydrogen peroxide decomposition compared with the total metals content. The feed solution in some embodiments results from a prior treatment of an iron or copper contaminated solution with a dispersion of stannic oxide.
Patent CA-2067656-C (CA)
Inventor: BERTA DOMINIC A
IPC: C08L23/18
Filed: 1992-04-30
Granted: 2003-03-11
Abstract: Disclosed are dynamically partially or fully crosslinked thermoplastic elastomers, having incorporated therein zinc salts of certain mercapto compounds.
Patent CA-2069610-C (CA)
Title: Unit dose container
Inventor: KIMBER MICHAEL BROWNING
IPC: B65D1/02
Filed: 1990-11-19
Granted: 1999-05-11
Abstract: A liquid containing thermoplastic unit dose container (1) which comprises a body portion (2), a neck portion (3) and an outlet opening {7) at the end of neck portion (3) which is sealed by a non re-sealable cap (4). The outside wall of the neck portion (3) comprises a thread engagement portion (8) which is located at or proximate the outermost edge of the neck portion (3) so that after removal of cap (4) thread engagement portion (8) is adapted to engage within an inwardly facing screw thread channel (14) at the end of a syringe. This enables sealing connection of the container (1) to the syringe so that liquid within container ( 1) may be directly transferred from the container (1) to the syringe.
Patent CA-2071489-C (CA)
Title: Luminous panel display device
Inventor: PARKER WILLIAM P
IPC: G09F13/04
Filed: 1990-12-10
Granted: 2002-08-20
Abstract: A gas discharge display apparatus in the form of an electroluminescent gas filled panel adapted for quickly and inexpensively making a durable and robust luminous sign using image patterns transferred to the panel by painting, silkscreening, stencilling, lithography, or the like. The apparatus generally includes a pair of substantially parallel spaced apart rigid plates, or sheets, enclosing an electroluminescent gas, and having variously located and kinds of conductive elements, such as surface coatings, used as electrodes for energizing the enclosed electroluminescent gas.
Patent CA-2079509-C (CA)
Inventor: TAKADA SHIGEYUKI
IPC: A61K9/16
Filed: 1992-09-30
Granted: 2002-05-14
Abstract: A novel microparticle preparation comprising microparticles of a polymer which contain a drug and are coated with a film of an agent for preventing aggregation of the microparticles is disclosed. The preparation is produced by spraying a solution of a polymer containing a drug and an aqueous solution of an agent for preventing aggregation of the microparticles separately from different nozzles and contacting them with each other in a spray dryer.
Patent CA-2080968-C (CA)
Title: Sandbag filling device
Inventor: BERGERON GUY E
IPC: B65B39/00
Filed: 1992-10-20
Granted: 1995-11-21
Abstract: A  sand  bag  filling device  comprises a trailer having a vertical post with a distribution head at a top of the vertical  post.    This  distribution  head  is  attached  to  a plurality  of  filling  spouts  which  extend  downwardly  and outwardly from the head to positions surrounding the head.   A rotatable  chute  is  positioned  at  the  top  of  the  head  for receiving sand from a conveyor and for supplying that sand to each in turn of the filling spouts.   Emergency personnel can move  a  sand  bag  to  each  spout  in turn with  the amount of material being controlled so that the bag is filled before the distribution head moves the supply to the next adjacent filling spout.
Patent CA-2082948-C (CA)
Title: Immunogenic peptides, antibodies and uses thereof relating to cd4 receptor binding
Inventor: SODROSKI JOSEPH G
IPC: C07K16/00
Filed: 1991-05-16
Granted: 2000-07-11
Abstract: Immunogenic peptides containing amino acid residues which define a binding site to a CD4 receptor are disclosed. Antibodies to these peptides are also disclosed. Methods of reducing the ability of a gp120 env protein to bind to CD4 are also disclosed, Methods of treatment and prophylaxis using these antibodies and peptides are also described.
Patent CA-2087197-C (CA)
Title: Triple orthogonally interleaved error correction system
Inventor: RHINES DON S
IPC: H03M13/29
Filed: 1993-01-13
Granted: 2000-03-21
Abstract: The detection and correction of errors in digital data transmitted by or stored  in a media channel  is provided  by  processing  the  data  through  a  triple orthogonally interleaved error correction system.  On the transmit/store side of the system, the data is encoded three times prior to placement in the media channel with two different interleaving steps performed between the encoding steps.  The first interleave is an orthogonal row shuffling interleave that provides enhanced protection against burst errors.  On the receive/play back side, the data is decoded and deinterleaved, with included errors detected and corrected to enable recovery of the original data.  To enhance the error correction, a circuit is used for generating a symbol accurate error flag identifying symbols  containing  errors  thereby  allowing  the  error correcting decoders to focus on and correct the data.
Patent CA-2109691-C (CA)
Inventor: THORWALL GREGORY R
IPC: B60D1/04
Filed: 1993-11-22
Granted: 1999-12-07
Abstract: A pintle hook hitch having an outwardly upwardly curved, fixed horn, an outwardly extending pivotal latch arm movable between a lower, closed condition over the horn, and a raised open condition, the body having a jamb face for engagement by a lock, a primary lock pivotally shiftable between a lowered and locked position for abutment with the jamb face, and an unlocked position pivotally raised away from the jamb face, a vertical spring biasing the lock toward the lowered lock position, the primary lock also being laterally shiftable with a push button pivot pin between a first lateral position and a second lateral position, a lateral spring biasing the primary lock laterally toward the first lateral position, the latch arm having a slot through which the pivotal primary lock is vertically movable when in the second lateral position, and having an interference ledge engaging the pivotal primary lock and preventing it from pivoting to said unlocked position when in the first lateral position, the second pivot pin extending beyond the latch arm and terminating in a push button, and the second pin having a lock engager to laterally shift the second pivot pin and the primary lock from the first position to the second position. To pivotally open the latch arm, it is necessary to perform a three-step process of first pushing the second pivot pin laterally via the push button against the lateral spring bias to laterally shift the primary lock from the first position to the second position, then lift the primary lock through the slot against the bias of the vertical spring, and then lift the latch arm.
Patent CA-2113581-C (CA)
Title: Negative abbe number radial gradient index relay, method of making, and use of same
Inventor: ATKINSON LELAND G III
IPC: A61B1/002
Filed: 1994-01-17
Granted: 2002-04-23
Abstract: Radial gradient index of refraction (GRIN) optical relays for overcorrecting axial chromatic aberration and a method for their manufacture are described. A relay including a radial GRIN rod in combination with a holographic optical element, or simple homogeneous or GRIN lenses, is described for adjusting axial chromatic and monochromatic aberrations, including spherical, coma, astigmatism, and distortion. The invention also describes remote viewing scopes, such as endoscopes and borescopes, which utilize said relays for achromatic, and reduced or corrected monochromatic aberration imaging. The use of segmented said relays provides a slight degree of flexibility in certain remote viewing scopes. A method for producing an exemplary negative dispersion GRIN lens is disclosed.
Patent CA-2115182-C (CA)
Inventor: ICHIHARA MASAKI
IPC: H03H19/00
Filed: 1994-02-08
Granted: 1997-05-27
Abstract: In a narrow-band filter for filtering an input signal having a predetermined frequency and comprising first through n-th low-pass filters (13-l to 13-n) which are connected in parallel to one another, a switching circuit time divisionally connects the first through the n-th low-pass filters between input and output terminals (11, 12).  The first through the n-th low-pass filters, thereby, time divisionally filters the input signal for first through n-th filtering durations, respectively.  A control circuit (30) is supplied with a frequency designation signal designating the predetermined frequency and controls the switching circuit to change at least one of the first through the n-th filtering durations in accordance with the frequency designation signal.
Patent CA-2116220-C (CA)
Title: Sulfamoyltriazole derivatives and fungicidal compositions containing the same as effective component thereof
Inventor: USUI YOSHIHIRO
IPC: C07D249/12
Filed: 1993-07-08
Granted: 1997-02-04
Abstract: The present invention relates to sulfamoyltriazole derivatives and fungicidal compositions containing them.  The sulfamoyltriazole derivatives have the general formula (I):            (I) in which R1 and R are, independently, lower alkyl groups or R1 and R together form an alkylene chain having 3 to 6 carbon atoms which may be substituted by a lower alkyl group;? is 0 or 1; and A is a substituted aryl group.  The fungicide derivatives do not damage field and garden plants and are effective for preventing and curing various diseases at very small dosages.
Patent CA-2122848-C (CA)
Title: A support mechanism for a bed
Inventor: BROWN DAVID J
IPC: A47C21/08
Filed: 1994-05-04
Granted: 2000-03-14
Abstract: Disclosed is a support mechanism that may be installed onto a conventional bed and/or a hospital bed frame to assist a person into and out of a bed. The support mechanism comprises a tubular support member formed with a pair of vertical and substantially parallel legs, each of which is adapted to fasten to the bed frame.
Patent CA-2123840-C (CA)
Inventor: LAUER ERNST HEINZ
IPC: F16D23/06
Filed: 1994-05-18
Granted: 2000-04-25
Abstract: A pin-type double acting synchronizer clutch (10) is disclosed with improved pre-energizer spring assemblies (46 or 52). The spring assemblies each include at least two leaf springs 48 or 54 sandwiched between split pin members (44). Retainers (50 or 55) at opposite ends of the leafs prevent escape of the leafs from between the split pin members. In one embodiment the retainers (50) are formed separate of the leafs and in another embodiment the retainers (55) are integrally formed with the leafs (54) by an extension (54d,54e,54f) of one end of each leaf.