baber/WOPTO huggingface dataset:
Patent KR-870001187-B1 (KR)
Title: Mechanical spring seal
Inventor: JANIAN ROBERT
IPC: F16J15/12
Filed: 1985-04-10
Granted: 1987-06-16
Abstract: The mechanical spring seal comprises an elastomeric jacket and a resilient spring insert having modified and matching cshaped cross- sectional configurations.  The major portion of the length of the spring follows a relatively straight path between a curved base and a position along the cross section at which the spring is widest, forming a pair of opposed cantilever arms which provide the major sealing force.  From this region of greatest width to the tips of the spring, the curvature is sharper, enabling the end of the spring to fit in fixed locked position within the jacket which conforms to it.
Patent KR-890004227-B1 (KR)
Title: Devices for processing colour signals
Inventor: MATSMOTO DOKIKAZU
IPC: H04N9/68
Filed: 1985-06-08
Granted: 1989-10-27
Abstract: The processor is to rationalize the recording level of a colour signal by detecting the level of the input colour signal, comparing the output with a reference level, synchronizing the output signal of the compared result with a vertical synchronous signal, and controlling a gain switching circuit.  The level of the colour signal input to a terminal (11) is detected by a level detector (14) and compared with the reference level of a reference level generator (16) by a level comparator (15).  If the colour signal level is lower than the reference level, a high level signal is output from the comparator.  On the contrary, a low level signal is output.
Patent KR-860002114-B1 (KR)
Title: Yarn guide transfer apparatus in knitting machine
Inventor: SAWAZAKI MASADOSHI
IPC: D04B15/60
Filed: 1985-07-30
Granted: 1986-11-26
Abstract: The machine has several feed stations each with several yarn guides retractable from operative to inoperative positions undr program control. Each guide has its own yarn clamp-cutter unit which is opened automatically as the guide is moved to lowered retracted position, specifically by a pawl on the guide. A cam on the needle cylinder moves any open clamp-cutter unit to closed position.
Patent KR-890004235-B1 (KR)
Title: Simple sound reproduction system
Inventor: GOIKKE EISHI
IPC: G11B3/00
Filed: 1985-08-08
Granted: 1989-10-27
Abstract: The apparatus comprises a record disc carrying a plurality of record grooves, a speaker diaphragm fixedly disposed above the record disk, a stylus force spring urging the record disc toward a sound transmitting member disposed on the bottom of the speaker diaphragm, a center pin fixedly attached to the center of rotation of the record disc capable of being rotated and axially advanced or retracted, and a transmission mechanism comprising a drive wheel fixed around the center pin.
Patent KR-890001621-B1 (KR)
Title: Process for preparing hydroxyaromatic oligomers containing both triazine and oxazoline groups
Inventor: HEFNER ROBERT E JR
IPC: C08G59/04
Filed: 1984-10-25
Granted: 1989-05-11
Abstract: This invention pertains to a process for preparing hydroxyaromatic oligomers containing triazine groups and oxazoline groups. The process is characterized by (I) reacting (A) a material having an average of more than one aromatic hydroxyl group per molecule with (B) a cyanogen halide such as cyanogen bromide in the presence of a base and recovering a mixture of cyanate-containing products and unreacted (A) materials, (II) co-oligomerizing the product resulting from (I) with an epoxy resin in the presence of a suitable co-oligomerization catalyst. This invention also pertains to a process for preparing epoxy resins containing both triazine groups and oxazoline groups by epoxidizing a hydroxyaromatic material in a conventional manner by reaction with an epihalohydrin with subsequent dehydrohalogenation with a basic-acting material and finally recovering the resultant glycidyl ether product, characterized in that the hydroxyaromatic material is the resultant co-oligomerization product from step (II) of the earlier process.
Patent KR-890002286-B1 (KR)
Title: Timer and watch circuit for calculater
Inventor: CHANG YONG-BOM
IPC: G06F15/02
Filed: 1986-01-20
Granted: 1989-06-27
Abstract: The circuit provides the functions of timer and clock to the shift registor in the beat serial type calculator.  The circuit comprises a QTM registor (10) determining instruction, a QM registor (20), a comparator (30) comparing the outputs of QTM and QM registor at every instruction excutions, a key jumper circuit (50) and a carry generating units (100, 200), blanking circuits (500,600,700), and a display registor circuit.
Patent KR-920005931-B1 (KR)
Inventor: MUKERJI JISHNU
IPC: H04M3/56
Filed: 1986-03-17
Granted: 1992-07-24
Abstract: 내용 없음.
Patent KR-940010021-B1 (KR)
Title: Monoclonal antibodies against atrial natriuretic peptides
Inventor: HIETS KLAUDIA
IPC: G01N33/68
Filed: 1986-03-19
Granted: 1994-10-20
Abstract: The invention generally relates to hybridoma cell lines, especially hybridoma cell lines which produce monoclonal antibodies (mAb) with specificity for atrial natriuretic peptides (ANP), especially of humans and rats, and to the use of the mAbs produced in this way as diagnostic aid and for research purposes both in vivo and in vitro.
Patent KR-930007410-B1 (KR)
Inventor: HIRANO TAKENORI
IPC: C07C15/46
Filed: 1986-04-04
Granted: 1993-08-10
Abstract: 내용 없음.
Patent KR-890004347-B1 (KR)
Title: Carbapenem intermediates and there it preparation
Inventor: UEDA YASUTSUGU
IPC: C07C245/18
Filed: 1986-04-21
Granted: 1989-10-31
Abstract: Carbapenem intermediates of formula (I) are prepd. by reacting a cpd. of formula (II) with sillyl trifluorate of formula R1R2R3Si-OS2CF3, in an inert solvent i.e. methylenechloride, THF, CCl4  at -40-30 deg.C in the presence of org. base i.e. C1-4 trialkyl amine.  In the formulas, R1 is carboxyl-protective gp.; R1=R2=R3=C1-4  alkyl; R5 and R6 are each H or methyl; R7=C1-4 alkyl, p-nitrobenzyl or -CH2CH=CH2. (I) are useful as intermediates for the prepn. of carbapenem antibiotic and tienamycin.
Patent KR-880000069-B1 (KR)
Title: The method of manufacturing for multiyarn
Inventor: KIM U-SOB
IPC: D02G3/36
Filed: 1986-05-12
Granted: 1988-02-22
Abstract: A spunlike multilayer structural yarn was produced from thermoplastic filament having small elongation as inner-layer yarn, with large elongation as outer-layer yarn.  Necking was irregularly formed on the outer-layer part by two feeding rollers having a different velocity.  The yarn was partially drawn and sprayed with 1-5% aq. organic solvent soln. such as ethylene oxide or propylene oxide, and followed by drawing to produce spunlike multilayer structural yarn.
Patent KR-930006280-B1 (KR)
Inventor: SAITO SHUICHI
IPC: B27B15/02
Filed: 1986-06-30
Granted: 1993-07-12
Abstract: 내용 없음.
Patent KR-890001879-B1 (KR)
Title: Process for preparing preparation containing extract of paulownia leaves
Inventor: KIM BYONG-YON
IPC: A61K8/97
Filed: 1986-09-01
Granted: 1989-05-29
Abstract: A method for prepg. toiletries contg. 0.1-40% of paulownia extracts comprises (a) soaking minced leaves of paulownia into soln. of ether, glycole, and glycerin, (b) extracting leaves with extractant (composed of EtOH 60-80%, higher alphatic acid ester 10-20% and water 5-20%) in a percolator, and (c) adding extracts to common toilet soap, or shampoo for hair rinsing and cleansing compsns. for products.
Patent KR-950000321-B1 (KR)
Title: Time correction for a picture-in-picture television system
Inventor: CHRISTOPHER TODD J
IPC: H04N5/45
Filed: 1986-09-02
Granted: 1995-01-13
Abstract: System performance of picture-in-picture video display systems is dependent on critical timing relationships between the incoming signals and the clock signals used to sample and display both the large picture and small picture signals. Video signals from various sources, e.g. VTR's, tend to have jittering time bases which may cause the small image to appear jagged or tilted. This distortion in the small image may be reduced by effecting adaptive signal delays in the small picture signal responsive to the relative phase of the system clock signal with respect to the horizontal synchronizing pulses of the large and/or small picture signal. One phase measure is used to control an interpolator which combines successive samples of the small picture signal in proportions to develop sample values corresponding to samples that would have occurred had the small picture signal been sampled by a clock properly aligned to the small picture horizontal synchronizing pulses. A second phase measure is used to delay the clock signal used to display the small picture so that the clock pulses that define the edges of the small picture occurs with the same timing relative to the large picture horizontal synchronizing pulses form line-to-line.
Patent KR-940006229-B1 (KR)
Inventor: HIGGINS FRANK P
IPC: H05K13/08
Filed: 1986-12-27
Granted: 1994-07-13
Abstract: 내용 없음.
Patent KR-930007303-B1 (KR)
Title: Photo-initiator for the photo-polymerization of unsaturated systems
Inventor: KOCHRER MANFRED
IPC: C07C49/175
Filed: 1986-04-02
Granted: 1993-08-05
Abstract: PCT No. PCT/EP86/00183 Sec. 371 Date Dec. 3, 1986 Sec. 102(e) Date Dec. 3, 1986 PCT Filed Mar. 27, 1986 PCT Pub. No. WO86/05777 PCT Pub. Date Oct. 9, 1986.Compounds of the general formula I   <IMAGE> (I) wherein Z is CR1R2(OR3) or phenyl, R1 being H, C1-6-alkyl or phenyl, R2 being H, C1-6-alkyl or C1-6-alkoxy and R3 being H, C1-6-alkyl or C1-6-alkanoyl and Z' is Y-[(CH2)m-X]n-, X being CH2 or 0, Y being OH; COOH or SO3H including the alkali metal, alkaline earth metal or ammonium salts thereof and also the salts thereof with organic nitrogen bases; or NRR' in which R and R' are in each case H, C1-20-alkyl or C1-4-hydroxyalkyl, if appropriate quaternized or in the form of the acid addition salts, and n and m each being the numbers 1-4, are excellently suitable as photoinitiators for the photopolymerization of ethylenically unsaturated compounds, in particular in aqueous systems.
Patent KR-930002748-B1 (KR)
Title: Emergency protective circuit
Inventor: KIM IN-SOK
IPC: H02H7/08
Filed: 1987-05-21
Granted: 1993-04-09
Abstract: In   operating   circuit   of   motor,   the   thyristor   is parallel-connected to the ON  botton  switch  and  the  electronic contact point. The variable resistors (VR1,VR2)  for  setting  the delay time of neon lamp and the resistor (R3) are  series-parallel connected to both  terminals  of  capacitor  (C1)  and  rectifying circuit including a test botton switch,  a  resistor  (R1)  and  a diode (D1). The resistor (R4) and the capacitor (C2) are connected to the cathode of thyristor. The discharging channel  including  a transistor and a diode (D3) is connected to the capacitors (C1,C2) and the resistor (R4) and the SCR. The interlock circuit including a resistor (R2), a diode (D2), and a capacitor (C3) is shorted  at cathode of capacitor (C1) through the OFF botton switch.
Patent KR-960010153-B1 (KR)
Inventor: TAKAKI MASAYOSHI
IPC: B23Q41/00
Filed: 1987-06-26
Granted: 1996-07-26
Abstract: 없음.
Patent KR-950014432-B1 (KR)
Inventor: DANIEL ROBERT KELLER
IPC: G09F9/302
Filed: 1987-07-04
Granted: 1995-11-27
Abstract: 내용 없음.
Patent KR-900005579-B1 (KR)
Title: Method and apparatus for shifting pallets on parking garage
Inventor: PARK SU-EUN
IPC: E04H6/14
Filed: 1987-10-06
Granted: 1990-07-31
Abstract: The apparatus for shifting pallets, inserts or draws upper loading pallet to pallet supporting space of multistage parking system in building or plant, gives correct and swift and safe transfer-loading between lift cage and pallets. Lift cage (5) of the apparatus inculdes rotating or reversible geared motor (10) on floor supported by horizontal frame (52), driving shaft (11) drawing from front or rear side, guide rail (55) with rollers (9), guide frame (12) and endless chain (13) between vertical frames (53,54), horizontal moving mean covered with steel cover (56).
Patent KR-0124187-B1 (KR)
Title: Winding and tape drive
Inventor: SCHANDL HARTMUT
IPC: G11B15/44
Filed: 1987-12-18
Granted: 1997-11-28
Abstract: The drive for a magnetic tape cassette has two winding elements lying next to each other and guiding the magnetic tape. The winding elements are driven by in each case a hub (1, 2) via a swivel wheel (4). The swivel wheel (4) is arranged with its axis (10) on a swivel lever (5), the pivot point of which is formed by the shaft (13) of a pinion (3) driving the swivel wheel (4). The swivelling direction of the swivel lever (5) is derived from the direction of rotation of the pinion (3). The swivelling movement is transferred by a ball (12) which, during the swivelling operation, is flexibly clamped between pinion shaft (13) and swivel lever (5). <IMAGE>
Patent KR-950011452-B1 (KR)
Inventor: MICHAEL WENDEL JOHNSON WEST
IPC: C08F293/00
Filed: 1988-02-24
Granted: 1995-10-04
Abstract: 내용 없음.
Patent KR-960010326-B1 (KR)
Inventor: CRIVELLO JAMES VINCENT
IPC: C08K5/00
Filed: 1988-03-30
Granted: 1996-07-30
Abstract: 내용없음.
Patent KR-910004764-B1 (KR)
Title: Polyimide resin composition
Inventor: TOMINAKA KAORU
IPC: C08L79/08
Filed: 1988-04-14
Granted: 1991-07-13
Abstract: A semiconductor encapsulating material is obtained from a polyimide resin composition comprising (A) a polyaminobismaleimide resin, (B) a silicone monomer and/or oligomer having a hydroxyl or alkoxyl group bonded to a silicon atom and mixtures thereof, and (C) an inorganic filler wherein the weight ratio of polyaminobismaleimide resin (A) to silicone component (B) ranges from 99.5/0.5 to 70/30, and the weight ratio of polyaminobismaleimide resin (A) to inorganic filler (C) ranges from 100/50 to 100/1000.
Patent KR-910004426-B1 (KR)
Inventor: SALTZBERG BURTON R
IPC: H04L7/04
Filed: 1988-04-30
Granted: 1991-06-27
Abstract: 내용 없음.
Patent KR-910009628-B1 (KR)
Inventor: GIDA YASUO
IPC: B60W10/10
Filed: 1988-05-28
Granted: 1991-11-23
Abstract: 내용 없음.
Patent KR-910008855-B1 (KR)
Inventor: NAGAI AKIRA
IPC: C08F12/00
Filed: 1988-07-06
Granted: 1991-10-21
Abstract: 내용 없음.
Patent KR-960009047-B1 (KR)
Title: Multipack for cans incorporating plastics securing band
Inventor: CHAUSSADAS JEAN
IPC: B65D71/00
Filed: 1988-07-11
Granted: 1996-07-10
Abstract: A composite package comprising a group of cans (C1-C6), a band (PB) of a plastics material which passes around the group of cans (C1-C6) intermediate their tops and bases, an outer paperboard wrapper (10) passing around the group. The wrapper includes spacer portions (S1, S2, S3, S4) each of which locates in a space present at the top and base ends between an adjacent pair of cans so as to urge the cans apart whereby the cans exert a force on the plastics band (PB) tending to expand the band into tension around the group of cans (C1-C6).
Patent KR-910007465-B1 (KR)
Inventor: KIM GANG-WON
IPC: H01M10/38
Filed: 1988-10-27
Granted: 1991-09-26
Abstract: 내용 없음.
Patent KR-900008121-B1 (KR)
Title: Method for suppressings prouting
Inventor: OKABE DOSHIHILO
IPC: A01G7/00
Filed: 1988-12-09
Granted: 1990-10-31
Abstract: Inhibition of germination is performed by applying hinokitiol to the site of germination. Hinokitiol is contained in Japanese cypress and may be obtd. by steam distillation and can be isolated and purified by conventional methods. Hinokitiol is prepd. in 200 g/ml soln. Control of the dormancy period and of the time of germination of the seeds. bulbs, potatoes, tubers, root tubers and scaly bulbs is obtd. for storage over a long period with a simple and economic method.
Patent KR-920003926-B1 (KR)
Inventor: KAMBARA YOSHIHIKO
IPC: B01J37/00
Filed: 1988-12-15
Granted: 1992-05-18
Abstract: 내용 없음.
Patent KR-920001683-B1 (KR)
Title: Directory service method in pabx
Inventor: CHO SEUNG-HWAN
IPC: H04M3/42
Filed: 1989-05-31
Granted: 1992-02-22
Abstract: checking  whether  an inputted key is a deletion, addition or rename code; deleting  the name in the directory, and re-arranging the names of  directories, upon receiving a deletion key; issuing an  error  message  if  the inputted key is an addition key  and  if  the  same  name  already exists, and  otherwise,  inserting  the  name  to  be  added   and re-arranging the list in the English  alphabetic  order;  renaming the name in the directory upon  receipt  of  a  rename  code;  and sending  ring  signals  to  the  relevant  telephone  number  upon encountering an intra-station telephone number; and  sending  ring signals to the relevant  telephone  number  upon  encountering  an inter-station telephone number.
Patent KR-970005747-B1 (KR)
Inventor: IMAI OSAMU
IPC: C04B35/453
Filed: 1989-06-15
Granted: 1997-04-19
Abstract: 내용없음.
Patent KR-910006914-B1 (KR)
Title: Flowerpot for cultivating orchid
Inventor: BAEK TAE-SON
IPC: A01G9/12
Filed: 1989-09-22
Granted: 1991-09-14
Abstract: The pot construction is arranged to  provide  conditions  for water supply, temperature control and air  supply  necessary,  but difficult to keep, to grow orchids in-door, as well as to  provide decorational effects for the house. The outer ceramic pot (1)  has a clay  pot  (8)  placed  in  fitting  within  the  pot  (1)   in combination. The ceramic pot (1) has a plurality of grooves (3) on the inner wall of the open mouth (2) and open  holes  (4)  at  the base of the neck for air supply and ventilation with air holes (7) provided in the bottom floor, while the clay pot has holes (10) in the side wall and air holes in the bottom  side,  the  holes  (10) being filled with solid fertilizer.
Patent KR-0143079-B1 (KR)
Inventor: SCOTT JR CHARLES WILLIAM
IPC: G02B6/36
Filed: 1989-10-25
Granted: 1998-10-01
Abstract: 광학 접속기의 사용 또는 해체를 위한 어떠한 기구없이도 높은 밀도의 섬유 어레이에 편리하게 이용될 수 있는 광섬유 접속기의 디자인을 제공한다. 
     전방 단부 및 후방 단부를 가지며, 내부에 적어도 한 공섬유(20)의 삽입에 적합된 페룰(19)과, 한 단부(12)에서 상기 페룰을 수용하도록 적합되며, 그 표면이 각각의 단부에 적어도 한 탭(18)을 포함하는 슬리브(10)를 구비하는 광섬유 접속기는, 상기 페룰에 대하여 회전 가능하게 장착된 홈 부재(23)로서, 상기 부재는 갭(26)을 가진 꾸불한 홈(25)을 포함하여 상기 페룰에 가한 제 1 세로힘은 슬리브에 페룰을 고착하기 위해 탭을 홈에 결합시키고 상기 페룰에 가한 제 2 세로힘은 슬리브로부터 페룰을 제거하기 위해 탭을 홈으로부터 해체하게 되는 상기 홈 부재(23)를 구비한다.
Patent KR-0167333-B1 (KR)
Inventor: TERASHIMA KANETSUGU
IPC: G02F1/133
Filed: 1989-11-27
Granted: 1999-03-30
Abstract: 내용없음.
Patent KR-920008089-B1 (KR)
Title: Sliding door with sliding equipment for vehicle
Inventor: KWON HYOK-JONG
IPC: B60J5/06
Filed: 1989-12-18
Granted: 1992-09-22
Abstract: The device for opening or closing the door by an engaged  arm moved by rollers sliding on two lines of guide rails, comprises  a round displacement rail (14) with constant width restricted by the width of under linear guide rail  (13)  the  rail  (13);  L-shaped bracket (6)  fixed  on  the  end  of  arm  (3)  and  horizontally supporting first  roller  (9)  sliding  on  the  rail  (13)   and vertically supporting eccentric second roller (10) sliding on  the rail (14). The first roller  has  a  concave  pin-cushion  center, engaged with a convex bulged guide (13) mounted on the rail (13).
Patent KR-0141101-B1 (KR)
Inventor: HOFFMAN KEITH E
IPC: F16F9/05
Filed: 1989-12-22
Granted: 1998-07-01
Abstract: 내용없음
Patent KR-0147539-B1 (KR)
Inventor: PARK JAE-HWEE
IPC: H01J29/86
Filed: 1989-12-31
Granted: 1998-08-01
Abstract: 내용없음
Patent KR-0131684-B1 (KR)
Title: Combustion control apparatus for fluidized bed boilers
Inventor: KOSUGI SHIGERU
IPC: F23G5/50
Filed: 1989-03-10
Granted: 1998-04-15
Abstract: The vapour pressure is detected by a gauge (20b) for use in controlling a combustible material supply unit (12-14) for the boiler (A,C).
Patent KR-930001390-B1 (KR)
Title: Process for the preparation of glucose
Inventor: BAE MYONG-SUK
IPC: C13K1/02
Filed: 1990-07-05
Granted: 1993-02-27
Abstract: A monosaccharide  is  prepd.  by  (a)  mixing  the  cellulose material, e.g.  rice  straw,  barley  straw,  wheat  straw,  Yucca cellulose etc., with 15-21 % HCL soln., (b) reacting the mixt.  at 100-110 deg.C for 5-8 hrs., (c) filtering  the  reacted  mixt.  to obtain  the  soln.,  and  (d)  adding  0.01-0.04  mol   AlCl3   or AlCl3  6H2O into the obtd. soln., re-reacting at 100-110 deg.C for 3- 4 hrs., netralizing with sodium hydroxide,  delignificating  and purifying to obtain the final product.
Patent KR-920004077-B1 (KR)
Title: Opening-closing device for door for electronic range
Inventor: CHO SONG-YON
IPC: H05B6/76
Filed: 1990-08-28
Granted: 1992-05-23
Abstract: Door jaws (22)  formed  at  the  base  section  (20)  prevent excessive door opening by the curved section (40C) formed at  door lever (40). The electronic-range door mechanism  has  curved  base section (20) having the U-shaped,  door  jaws  (22)  joined  by  a lever, sliding member (46) for controlling door opening  speed  by the friction force of a helical shaft. The helical shaft  is  made from circular metal bar, and the cylindrical sliding-member  which is made  from  polycarbonate  resin  or  reynold  resign  and  has projected parts formed on inner surface.
Patent KR-930001217-B1 (KR)
Title: High concentration organic waste water treating method and apparatus
Inventor: HYON SHIN-UNG
IPC: C02F11/04
Filed: 1990-08-30
Granted: 1993-02-22
Abstract: Organic wastewater is treated by (a)  passing  it  through  a 0.2-0.3 H lower portion of a vessel of height H to  form  a  thick hard sludge blanket in the lower portion; (b) passing  it  through several medium layers in the middle  of  the  vessel,  the  medium layers are inclined at an angle of 55-65 deg.; and (c) passing  it through a 0.1-0.2 H upper portion of the vessel. The  velocity  of the flow is 0.5-2.5 m/day for 1-5 days. The water  originally  has BOD 3,000- 30,000 ppm (claimed). It is alcohol, grape fermentation, beer, coffee  or  starch   waste   water.   Process   effectively concentrates organic waste water and removes contaminants from the blanked  and  medium  layers  (claimed).  The  process  is  rapid, inexpensive and environmentally desirable.
Patent KR-960006743-B1 (KR)
Title: Manufacture process of device having high capacitor
Inventor: AHN BYUNG-WOO
IPC: H01L27/108
Filed: 1990-10-13
Granted: 1996-05-23
Abstract: forming a transistor on a semiconductor substrate (1); forming a buried contact at a certain part by etching selectively after making an insulating film (7) on the entire surface of the resulting substance; forming a first storage node (8) at certain part of the insulating film (7) including the above buried contact; forming a first dielectric layer on the entire surface of the above first storage node (8); forming a contact by etching a first plate polysilicon selectively; revealing certain part of the first storage node (8) by dry etching the dielectric layer on the area of the above contact (12); forming a second storage node (13) connected with the first storage node (8) through the contact (12) by depositing and patterning poly-silicone; revealing certain part of the first plate (10) by dry etching of the dielectric layer on the above first plate (10) after forming a third dielectric layer (14); and forming a second plate (15) connected with the first plate (10) through the revealed first plate. The process provides advantages of: easy control of the thickness of the plate and storage node; easy formation of the dielectric layer and the plate by adopting dry etching; and high capacitator in the production of high integrated memory cell.
Patent KR-0154981-B1 (KR)
Title: Friability testing apparatus
Inventor: DOUGLAS JAMES REID
IPC: G01N3/34
Filed: 1990-12-11
Granted: 1998-12-01
Abstract: The invention provides a friability testing apparatus which has an electrically excitable vibrator (10,12) for vibrating a capsule (14) containing material to be tested. The apparatus includes a microprocessor (20) which provides an output waveform with a frequency which is determined by an oscillator (22). The output of the microprocessor drives a power amplifier (18) which controls the vibrator. An accelerometer (16) supplies a feedback signal to the microprocessor, so that the operation of the vibrator is maintained within predetermined limits.