baber/WOPTO huggingface dataset:
Patent KR-900001846-B1 (KR)
Title: Manufacturing apparatus for a bottle cap to make one step process for a deep drawing
Inventor: CHON YONG-HWA
IPC: B21D51/38
Filed: 1987-01-07
Granted: 1990-03-24
Abstract: The equipment enables a bottle cap to be formed just by one process, so that work efficiency and the quality of the bottle caps is improved.  The equipment for forming bottle caps comprises a die cutter (16) fixed on a base plate (29), a punch cutter (13) and a second punch (14) operated by a crankshaft, and a die ring, a first die center (18) and a second die center (19) which are aligned on a concentric circle.  When a punch part (28) moves downward, the second punch (14) and the first die center (18) are inserted into the die center (19) and the second punch, so that the bottle caps can be formed just by one process.
Patent KR-940004126-B1 (KR)
Inventor: NAKACHI TAKESHI
IPC: C08F14/06
Filed: 1987-03-24
Granted: 1994-05-13
Abstract: 내용 없음.
Patent KR-950010077-B1 (KR)
Inventor: SUTHERLAND DEREK R
IPC: A01N43/22
Filed: 1987-06-05
Granted: 1995-09-06
Abstract: 내용 없음.
Patent KR-920000817-B1 (KR)
Title: Electrically heatable curling iron
Inventor: BAROWSKI KARLHEINZ
IPC: A45D1/04
Filed: 1987-06-19
Granted: 1992-01-30
Abstract: An electric curling iron has a handle and unitary curling structure with first and second elongated generally aligned oppositely extending shell sections aligned oppositely extending shell section. Each section is provided with a separate PTC resistance heating element and the two shell sections have different diameters and/or different bristles and/or at least one hair clamping arm. The handle is adapted to be selectively slipped onto either of the two shell sections, whereby at the same time an electrical connection is established between the heating element in the other shell section and an electrical power supply on the handle.
Patent KR-900003193-B1 (KR)
Title: Squeezing out oil maschine
Inventor: KIM JUN-BAE
IPC: B30B9/12
Filed: 1987-12-07
Granted: 1990-05-10
Abstract: A screw type oil press includes a cylinder (22) in which a stirring screw (23) connected to a rotating shaft (26) is placed. A hopper (27) and an exist (25) are provided at the each end side of the cylinder, and an adjustable rod (28) having a slopped face (28) and an adjustable knob (29) is placed at the one side of the cylinder. A piece of guide plate (38) is adhered to the inner side of a cylinder (31) to which a band heater (36) is attached. A plurality of oil collecting boxes is provided at the one end of the cylinder and an entrance (34) of the cylinder (31) is connected to an exit (25) of the cylinder (22).
Patent KR-910000594-B1 (KR)
Inventor: BRIAN WILLIAM J
IPC: G21C3/322
Filed: 1987-12-22
Granted: 1991-01-26
Abstract: 내용 없음.
Patent KR-900005637-B1 (KR)
Title: Crystal oscillator's sealing method
Inventor: PARK KWANG-WON
IPC: H03H3/007
Filed: 1987-12-31
Granted: 1990-08-01
Abstract: A protection cover (4) made of metal having good thermul conductivity is pressed against a base body (3) made of synthesised resin. At this time, the cover isheated with high temperature enough to melt the base body so that the cover is implanted tightly into the body.
Patent KR-0127766-B1 (KR)
Inventor: GRUNERT KURT A
IPC: H01H73/48
Filed: 1988-01-15
Granted: 1998-04-02
Abstract: 내용 없음.
Patent KR-920001619-B1 (KR)
Inventor: KAMIYAMA TADANOBU
IPC: G06T11/60
Filed: 1988-01-30
Granted: 1992-02-20
Abstract: 내용 없음.
Patent KR-960012364-B1 (KR)
Inventor: KRESS ULRICH
IPC: B01J25/02
Filed: 1988-05-03
Granted: 1996-09-20
Abstract: 내용없음.
Patent KR-920008110-B1 (KR)
Inventor: TANAKA HIROSHI
IPC: H04N5/928
Filed: 1988-09-27
Granted: 1992-09-22
Abstract: 내용 없음.
Patent KR-950010262-B1 (KR)
Inventor: TSUTSUI OSAMU
IPC: G05D11/16
Filed: 1988-09-30
Granted: 1995-09-12
Abstract: 내용 없음.
Patent KR-910004957-B1 (KR)
Inventor: SEGAWA MASAO
IPC: H05K3/34
Filed: 1988-09-30
Granted: 1991-07-18
Abstract: 내용 없음.
Patent KR-910001746-B1 (KR)
Inventor: MIYAMURA MASADAKA
IPC: C08G59/32
Filed: 1988-11-14
Granted: 1991-03-22
Abstract: 내용 없음.
Patent KR-930007625-B1 (KR)
Inventor: SHIMIZU HIROSHI
IPC: B41J17/32
Filed: 1988-12-13
Granted: 1993-08-14
Abstract: 내용 없음.
Patent KR-910003582-B1 (KR)
Title: Compression jointing method or device of cable sleeve
Inventor: HWANG BU-HOE
IPC: H02G15/192
Filed: 1988-12-19
Granted: 1991-06-05
Abstract: The apparatus employing a continuous process of pressing  and drawing attaches sleeves on the edge of cables, such as tie  cable or anchor cable, which are used as tensioning rope in construction work. The apparatus comprises a  hydraulic  cylinder  (3)  between fixing plates (2,2'); piston and piston rod (4) on the guide  rail (5), which are attached to movable device (6); drawing  dies  (11) for inserting and drawing sleeve (13), which is fixed to operating member (9); center fixing disc (12) being fixed to the plate  (2), and a guide bar (8) between the fixing plates.
Patent KR-920007410-B1 (KR)
Title: Safe file system for a portable data carrier
Inventor: ANDERL EWALD C
IPC: G06F21/62
Filed: 1987-04-20
Granted: 1992-08-31
Abstract: A security file system for a portable data carrier provides improved security for the data carrier and for data contained in files in the data carrier. Although the data carrier may be embodied to look and feel much like an ordinary credit card, it contains a computer and a programmable memory with operating power and input and output data provided through a contactless interface. In order to provide security for the data carrier, the security file system on the data carrier includes a stored access code for verifying the identity of an individual attempting to access the data carrier, and an appropriate routine for limiting the number of unsuccessful attempts to access the data carrier. The security file system is also configurable to include select ones of multiple stored access codes for enabling the retrieval and modification of data in corresponding select ones of the files. The routine similarly limits the number of unsuccessful attempts to access these files. Operation of the routine is such that a counter in the data carrier is advanced a count each time a code is externally provided to the data carrier. If this external code compares favorably with the stored access code, the counter is reset to its previous count and access to the data carrier is permitted. If the external code does not compare favorably with the stored access code, however, the counter is not reset. When the counter advances to a predetermined number, the data carrier is locked preventing further access attempts or, alternatively, the data erased from the data carrier. In limiting access to select files, the routine similarly locks or erases the data in the selected file in the same manner.
Patent KR-940010761-B1 (KR)
Inventor: YOSHIGAI KENICHI
IPC: B62L3/02
Filed: 1987-12-15
Granted: 1994-11-11
Abstract: 내용 없음.
Patent KR-970007591-B1 (KR)
Inventor: GAYUGAWA DADAO
IPC: A63F7/02
Filed: 1989-03-23
Granted: 1997-05-13
Abstract: 내용없음.
Patent KR-910005445-B1 (KR)
Title: Temperature control apparatus for water providing system
Inventor: ASIDATS HUMIAKI
IPC: F23N5/00
Filed: 1989-03-29
Granted: 1991-07-29
Abstract: The device is used for controlling the temperature  of  water discharged from the heat exchanger in a gas-fired burner or bunsen type burner or electric heater etc.. The amount of heating on  the heat exchanger is controlled by temperature of water flowing  into heat exchanger and the flow rate of  water  flowing  through  heat exchanger. The temperature of water discharged from heat exchanger is  determined  by  the  heating  amount.  The  device   comprises calculating menas for calculating  the  temperature  of  the  heat exchanger according to thermal capacity of the heat exchanger  and the temperature of the discharged  water;  calibrating  means  for calibrating the heating amount on the heat exchanger according  to the calculating temperature of the heat exchanger.
Patent KR-920010206-B1 (KR)
Inventor: UEMATSU MASAHIRO
IPC: H01Q3/00
Filed: 1989-04-12
Granted: 1992-11-21
Abstract: 내용 없음.
Patent KR-930005668-B1 (KR)
Title: Refrigeration cycle
Inventor: BAE YONG-DON
IPC: F25B1/00
Filed: 1989-05-01
Granted: 1993-06-24
Abstract: The  compressor  for   improves   compressing   ability   of refrigerant, comprises a piping filled with  the  refrigerant  and heating means for heating the refrigerant wound helically  on  the outer wall of a cylindrical body; solenoid valve  mounted  at  the discharging outlet of the pipe and the body; a compressing section having a check valve mounted at the refrigerant inlet; two or more paallely connected compressing  sections  respectively  performing compression with a certain time difference.
Patent KR-0141493-B1 (KR)
Inventor: PALAZZOTTO MICHAEL C
IPC: C08G18/63
Filed: 1989-06-01
Granted: 1998-06-15
Abstract: 내용없음
Patent KR-940004550-B1 (KR)
Inventor: MORINO TAISUKE
IPC: H05B6/80
Filed: 1989-06-14
Granted: 1994-05-25
Abstract: 내용 없음.
Patent KR-920003158-B1 (KR)
Inventor: NAIKI KAZUAKI
IPC: H01J29/50
Filed: 1989-06-27
Granted: 1992-04-20
Abstract: 내용 없음.
Patent KR-0142207-B1 (KR)
Inventor: KOCH TOMAS LAWSON
IPC: H01S5/12
Filed: 1989-08-23
Granted: 1998-08-17
Abstract: 본 발명은 PIC를 제조하기 위한 개량된 공정에 관한 것이다.  본 발명의 공정은 베이스 웨이퍼의 성장 즉, 적당한 기판상의 여러 가지 에피택셜층의 적층으로 시작한다.  상기 재질층의 각각의 부분은 PIC 형태가 되는 또는 제조 처리 단계의 최소한 하나에서 한 역할을 하는 많은 소자의 어느 기능 부분이 된다.  구체적인 본 발명의 처리 단계는 (1) 수동 도파관, 능동 소자 및 격자 필터부분을 종래 기술에서 나타나는 광학적인 불연속성이 없이 상호 접속하는 단계와 (2) 각 PIC 소자의 성능을 최적화시키기 위해 PIC 의 서로 다른 영역에서 서로 다른 길이로 도파관을 연속적으로 에칭하는 단계로 이루어진다. 본 발명의 공정은 예를들어 (a) 얕은 메사 영역에서 도파관의 고 선명 패턴닝, (b) 종래의 결정 방향과는 다른 어떤 각도의 매입형 도파관을 만들 수 있는 능력, (c) PIC 의 서로 다른 도파관 사이의 개량된 결합, (d) 깊은 메사 영역에서 효과적인 낮은 기생 용량 전류의 제한, (e) 저손 수동 도파관을 만들게 한다.  깊은 메사 영역에서의 전류 제한과 얕은 메사 영역에서 수동 도파관에서 저손실을 결합시키는 본 발명의 구체적인 실시예는 상부 클래딩층이 낮은 광 흡수를 갖는 낮게 오프된 또는 반절연체로 구성이 되는 저손실 도파관의 형성을 포함한다. 상기 실시예에서, 낮게 도핑된 또는 반절연 재질은 PIC 의 깊은 메사 영역에 대해 전기적 차단 역할을 한다.
Patent KR-910009516-B1 (KR)
Inventor: MINAMITANI GOWZI
IPC: B65D81/34
Filed: 1989-11-30
Granted: 1991-11-21
Abstract: 내용 없음.
Patent KR-920008581-B1 (KR)
Title: Process for embossing the fabrics using the ultrared rays
Inventor: SHIN UNG-CHOL
IPC: D06C23/04
Filed: 1990-05-23
Granted: 1992-10-01
Abstract: coating the surface of heat-meltable  or heat- shrinkable fabric with water-soluble size or  adhesive  which contains  infrared  absorbing  material  that  is  carbon   powder impregnated with silicone oil and whose particle size is 50-80 μ, thus removable by washing with water after  infrared  irradiation. This  method  achieves  complete  removal  of   colored   infrared absorbing material after forming irregular patterns on the fabric, thus eliminating any likeliness of fabric tainting.
Patent KR-970009909-B1 (KR)
Inventor: NATORI YOSHIKO
IPC: A23L19/12
Filed: 1990-09-20
Granted: 1997-06-19
Abstract: 내용 없음.
Patent KR-940003546-B1 (KR)
Inventor: YAMAGUCHI HIROYUKI
IPC: G11B7/09
Filed: 1990-10-15
Granted: 1994-04-23
Abstract: 내용 없음.
Patent KR-930008331-B1 (KR)
Title: Cutting method by supersonic waves
Inventor: LEE YONG-HO
IPC: B23H7/38
Filed: 1990-12-13
Granted: 1993-08-30
Abstract: piling up quartz pieces with an adhesive; and cutting the quartz pieces  by  punching  with  a hollow  member  of  processing apparatus  that  is  operated   by ultrasonic oscillation in frequency of 16 KHz -  20  KHz,  thereby having a fixed size and precise  manufacturing  quality  of  outer surface.
Patent KR-940003175-B1 (KR)
Title: Forming method for polyamide film
Inventor: HONG JONG-PYO
IPC: B29C48/32
Filed: 1990-12-21
Granted: 1994-04-15
Abstract: The method for manufacturing polyamide film, is inflation type method for increasing strength, transparency, adhesiveness to a film of another material. The method is composed of melting polyamide of 3.5-4.0 viscosity, 1.4-1.7 molecular weight; extruding the melt through a ring-shape die for forming a tube type film; cooling the film in the water of 10-40 deg.C temp. and stretching it.
Patent KR-950002534-B1 (KR)
Inventor: SHUTOL KURT
IPC: F16K31/06
Filed: 1991-04-22
Granted: 1995-03-21
Abstract: 내용 없음.
Patent KR-100224292-B1 (KR)
Title: Stable salts of 4"-deoxy-4"-epi-methylamino avermectin b1a/b1b
Inventor: RAYMOND CVETOVICH
IPC: A01N43/90
Filed: 1991-06-27
Granted: 1999-10-15
Abstract: Certain salts of 4 sec -deoxy-4 sec -epi-methylamino avermectin Bla/Blb such as: the benzoic acid salt, gallic acid salt, citric acid salt, benzenesulfonic acid salt and salicyclic acid salt, phosphoric acid salt, tartaric acid salt or maleic acid salt, exhibit enhanced stability, a property which serves to provide greater shelf life and a product of greater safety for the user and the environment.
Patent KR-100206400-B1 (KR)
Title: Closure with high energy button.
Inventor: HEILMAN ROBERT J
IPC: B65D81/20
Filed: 1991-07-08
Granted: 1999-07-01
Abstract: A closure has a central button (24) has an "up" convex state from which it is movable by a vacuum within an associated container to a "down" concave state. The button (24), as formed, has a zero or tensile stress state with the stress state changing to a compressive stress state when the button (24) is drawn downwardly by said vacuum. This invention teaches that the button (24) be reformed (32-38) so that it is slightly flattened and the reforming changes the zero or tensile stress state to a compressive stress state thereby providing the button (24) with more stored energy when it is drawn downwardly by a vacuum within an associated container, thus providing a greater flipping action of the button capable of operating an irreversible tamper indicating system which may be applied to the button (24). <IMAGE>
Patent KR-960001825-B1 (KR)
Inventor: WAKADA SHUCHO
IPC: G01N29/22
Filed: 1991-10-18
Granted: 1996-02-05
Abstract: 내용 없음.
Patent KR-950009075-B1 (KR)
Inventor: IOUE MITONASU
IPC: G11C11/41
Filed: 1991-11-15
Granted: 1995-08-14
Abstract: 내용 없음.
Patent KR-100215246-B1 (KR)
Inventor: THADDEUS F ZLOTEK
IPC: F16D41/07
Filed: 1991-12-26
Granted: 1999-08-16
Abstract: 본 발명은 개선된 클러치를 개시한다. 스프레그용 리테이너는 일반적으로 단면이 니자형이다. 리테이너 각 축방향 단부의 다리들은 중앙의 평평한 부분의 방사방향으로 외측으로 연장하고, 스프래그들을 위치시킬 노치들을 지닌다. U자형 단면으로 인해 얇은 금속을 사용하여 리테이너 몸체를 형성할 수 있다. 개선된 스프래그는, 그 내주변에는 단일한 스프링 노치를 지니고, 그 외주변에는 고체 접촉면을 지닌다.
Patent KR-960008104-B1 (KR)
Inventor: OKADA HISAO
IPC: G09G3/36
Filed: 1992-05-21
Granted: 1996-06-19
Abstract: 내용 없음.
Patent KR-960005935-B1 (KR)
Inventor: NISHIDE TAKUYA
IPC: H04N5/44
Filed: 1992-05-28
Granted: 1996-05-03
Abstract: 내용 없음.
Patent KR-950007010-B1 (KR)
Title: Manufacturing method of round door for furniture
Inventor: KIM SUN-HAK
IPC: E06B3/70
Filed: 1992-06-17
Granted: 1995-06-26
Abstract: A method of manufacturing a round door which is adoptable to the corner of furniture is presented in adhering and bending processes of a plywood panel (2). The method proceeds in the following steps; a) scratching a lot of vertical lines on the inner surface of the plywood panel at a suitable distance in accordance with the curvature of a round corner door, b) forming the straight grooves (6) along the scratched lines with a round sawing machine, c) injecting adhesives into the grooves, d) bending the door panel with a suitable curvature of the door, e) and finally sand-papering the inner surface of the round door panel.
Patent KR-0148585-B1 (KR)
Inventor: TSUJI NOBUAKI
IPC: H01L23/52
Filed: 1992-07-08
Granted: 1998-12-01
Abstract: 활성 요소들이 형성되지 않는 반도체 칩의 주변부에, 전원공급 배선 또는 접지배선 밑에 있는 층이 고르지않은 표면으로 제공된다.  배선과 바로 밑에 있는 층 사이의 접촉면에 있는 고르지않은 또는 주름진 면은 배선이 슬라이드되지 않도록 만든다.  고르지 않은 면은 절연층들 사이에 이물질을 부과하는 것에 의하여, 또는 절연층의 두께를 선택적으로 감소시키는 것에 의하여, 또는 절연층에 개방부를 형성하는것에 의하여 실제화될 수 있다
Patent KR-960002205-B1 (KR)
Title: Release button for auto-camera
Inventor: KIM JIN-UP
IPC: G03B17/38
Filed: 1992-08-18
Granted: 1996-02-13
Abstract: The structure is composed of a release button(1) and a common pattern terminal(8). The structure is characterized in that the release button is made of elastic material, in that the common pattern terminal(8), first and second pattern terminals(9,10) are printed on the front of a PCB which is located in the release button(1), in that a contacting point(5') of the common pattern terminal and the second pattern terminal is positioned to correspond to a plurality of contacting points, and in that the other contacting point of the common pattern terminal and the first pattern terminal is positioned to be corresponded to the plurality of contacting points.
Patent KR-970009673-B1 (KR)
Title: Repeater of regenerating data
Inventor: KIM KWANG-SOO
IPC: H04L1/00
Filed: 1992-08-24
Granted: 1997-06-17
Abstract: A data regeneration repeater is disclosed. The data regeneration repeater comprises a transmitter(30), a receiver(31) and a switch controller(28). The transmitter(30) determines whether the data signal inputted from a first cable segment exists or not, and also determines whether a jitter noise is contained at the data signal. In case that, the data signal is detected, a data signal input detection signal is generated and the data signal is provided to a second cable segment. In case that the jitter noise is contained at the data signal, an error data display signal is transmitted to the second cable segment. The receiver(31) determines whether the data signal inputted from a second cable segment exists or not, and also determines whether a jitter noise is contained at the data signal. In case that, the data signal is detected, a data signal input detection signal is generated and the data signal is provided to a first cable segment. In case that the jitter noise is contained at the data signal, an error data display signal is transmitted to the first cable segment. The switch controller(28), responsive to the data signal input detection signals from the transmitter(30) and the receiver(31), controls the data transmission and the data reception.
Patent KR-960005251-B1 (KR)
Title: Manufacture of memory device
Inventor: YUN JOO-YOUNG
IPC: H01L27/108
Filed: 1992-10-29
Granted: 1996-04-23
Abstract: forming a first material layer on a substrate having a transistor and a bit line; forming a first pattern defined lay cells and consisting of a second material layer; forming a contact hole for electrical connecting between the source region and the storage electrode by removing the material layer positioned on the source region; forming a second conduction layer over the resulting structure; forming a spacer of the second conduction layer on the side wall of the first pattern and on the inner wall of the contact hole by anisotropic etching; and removing the first pattern. The method increases capacitance within a limited unit cell.
Patent KR-960005584-B1 (KR)
Title: Method for metallizing on ceramic board
Inventor: KIM YOUNG-SIK
IPC: H05K1/09
Filed: 1992-12-16
Granted: 1996-04-26
Abstract: coating a ceramic substrate(1) with a copper compound(2), and burning the surface in the atmosphere in an electric furnace at a temperature of 1000-1200 degrees for 10-30 minutes; and cooling at 400-500 degrees to form a pure copper layer(3).
Patent KR-0131302-B1 (KR)
Title: Auto-transmission damper clutch control device
Inventor: JANG JAE-DUK
IPC: F16H63/02
Filed: 1992-12-22
Granted: 1998-04-13
Abstract: This device provides the enhancement of the torque feeding efficiency inside the torque converter. This device is composed of the clutch valve roll for checking the damper clutch introduced for the higher efficiency of the power feeding, the first port fed with the operation from the torque converter control valve, the fourth port that provides the oil pressure toward the clutch releasing passage, the second port which is selectively interlocked with the first port, the valve body equipped with the third port, and the valve spool containing the first, second, third, fourth lands to selectively open or close the plural ports.
Patent KR-960004644-B1 (KR)
Title: Method of producing two opposite objects measuring mark
Inventor: KIM YOUNG-SIK
IPC: G03F9/00
Filed: 1992-12-30
Granted: 1996-04-11
Abstract: forming a four-side type pattern having an angle of 45 to 135 deg. on edges of square outer and inner edge patterns. The structure of the four-sides type pattern is comprised of a concave or convex structure.
Patent KR-970007066-B1 (KR)
Title: Method and apparatus isotopic analysis
Inventor: MURNICK DANIEL E
IPC: G01N21/62
Filed: 1993-02-03
Granted: 1997-05-02
Abstract: The isotopic composition of a multiatomic isotope-bearing species such as CO2 in an analyte is measured by maintaining the analyte in a condition such that isotope-bearing species are present in an excited state and directing light at wavelengths corresponding to transition energies of isotope-bearing species with different isotopes. The interaction between the analyte and light at the different wavelengths is monitored, as by monitoring the optogalvanic effect caused by the light of the different wavelengths. The light may be supplied by a laser (10) including the isotope-bearing species. A stable isotope such as <1><3>C or <1><8>O can be used as a tracer in a chemical or biological test and detected using the composition-determining method. <IMAGE>
Patent KR-100274184-B1 (KR)
Title: Human calcitonin fused with prosweet
Inventor: SONG YOUNG HO
IPC: C12N15/16
Filed: 1993-02-25
Granted: 2000-12-15
Abstract: PURPOSE: Provided is a method for manufacturing human calcitonin which is fused with prosweet to prevent N-terminal of the human calcitonin from being dissolved. CONSTITUTION: The method for manufacturing human calcitonin fused with prosweet comprises the following steps of: i) synthesizing oligo nucleotide of human calcitonin gene; ii) linking the human calcitonin gene with ubiquitin gene through polymerase chain reaction (PCR); iii) inserting the human calcitonin gene fused with prosweet into vector pYLBC GAP-HGH and transforming Saccharomyces cerevisiae with the expression vector; and iv) cultivating the yeast to express human calcitonin and checking the expression through SDS-polyacryl amide gel electrophoresis.
Patent KR-950011843-B1 (KR)
Title: Automatic teller machine
Inventor: SO JU-YONG
IPC: G07D9/00
Filed: 1993-03-02
Granted: 1995-10-11
Abstract: The dispenser comprises a cash unit for providing cash to customers; a bankbook unit for printing the contents of the transactions and reading the magnetic information thereof; a main control system for controlling all the units including unit, the bankbook unit, a customer operation unit, and a specification printing unit; the customer operation unit for inputting the contents of transactions; and the specification printing unit for processing transactions according to the input of the customer and printing the contents of transactions.
Patent KR-960001392-B1 (KR)
Title: Improved water treatment system
Inventor: HONCHAR DENNIS ROGER
IPC: F28F25/00
Filed: 1993-03-05
Granted: 1996-01-26
Abstract: The present invention comprises an improved method and apparatus for treating water in heat exchange systems. The present invention automatically and inexpensively provides an effective chemical to process water systems at times and in proportion to the need for water treatment in such systems. When used in evaporative cooling systems (10), the present invention adds the treatment chemical to the system via the make-up water (44). The make-up water acquires a substantially constant concentration of treatment chemical as it is passed through a device (42) containing a treatment chemical. The constant concentration of chemical is achieved by dividing the make-up flow into two streams within the device, saturating the smaller of the two streams with chemical, and re-mixing the two streams. The biocide agent used in the preferred embodiment of the invention is prilled elemental iodine. <IMAGE>