US3877455A - Engine protective system - Google Patents

Engine protective system Download PDF

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Publication number
US3877455A
US3877455A US359598A US35959873A US3877455A US 3877455 A US3877455 A US 3877455A US 359598 A US359598 A US 359598A US 35959873 A US35959873 A US 35959873A US 3877455 A US3877455 A US 3877455A
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US
United States
Prior art keywords
pressure
valve
oil
coolant
temperature
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US359598A
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English (en)
Inventor
Joe E Goodwin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INSTITUTE OF GENERAL AND PHYSICAL CHEMISTRY AND INSTITUTE FOR BIOLOGICAL PHYSICS OF USSR ACADEMY OF SCIENCE
Parker Intangibles LLC
Sentinel Distributors Inc
Original Assignee
Sentinel Distributors Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sentinel Distributors Inc filed Critical Sentinel Distributors Inc
Priority to US359598A priority Critical patent/US3877455A/en
Priority to CA189,932A priority patent/CA989693A/en
Priority to AU64612/74A priority patent/AU464974B2/en
Priority to FR7403054A priority patent/FR2228946B1/fr
Priority to DE2405463A priority patent/DE2405463C2/de
Priority to IT20325/74A priority patent/IT1006320B/it
Priority to JP2847174A priority patent/JPS5654445B2/ja
Priority to SE7403286A priority patent/SE405495B/xx
Priority to GB2015074A priority patent/GB1437669A/en
Application granted granted Critical
Publication of US3877455A publication Critical patent/US3877455A/en
Assigned to INSTITUTE OF GENERAL AND PHYSICAL CHEMISTRY AND INSTITUTE FOR BIOLOGICAL PHYSICS OF THE USSR ACADEMY OF SCIENCE reassignment INSTITUTE OF GENERAL AND PHYSICAL CHEMISTRY AND INSTITUTE FOR BIOLOGICAL PHYSICS OF THE USSR ACADEMY OF SCIENCE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: POPOVIC, GORAN, VUCELIC, DUSAN, PONOMARJEV, VIKTOR, SARVAZYAN, ARMEN P., VEKSLER, AKIVA
Assigned to PARKER INTANGIBLES INC., A CORP. OF DE reassignment PARKER INTANGIBLES INC., A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: PARKER-HANNIFIN CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
    • F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
    • F01P11/14—Indicating devices; Other safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M1/00—Pressure lubrication
    • F01M1/18—Indicating or safety devices
    • F01M1/20—Indicating or safety devices concerning lubricant pressure
    • F01M1/22—Indicating or safety devices concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure
    • F01M1/24—Indicating or safety devices concerning lubricant pressure rendering machines or engines inoperative or idling on pressure failure acting on engine fuel system
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B77/00—Component parts, details or accessories, not otherwise provided for
    • F02B77/08—Safety, indicating, or supervising devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00—Engines characterised by air compression and subsequent fuel addition
    • F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition

Definitions

  • a system for protecting an internal combustion engine from damage in the event of a malfunction in the engine cooling system includes a coolant flow pressure controlled valve interposed in the oil line leading from an oil pressure actuated fuel control device back to the engine sump. When the engine is operating, the valve is normally maintained closed by the flow pressure in the cooling system.
  • the valve is automatically opened by spring pressure to release the oil pressure at the valve and permit the oil to flow into the dump line to the sump.
  • the resulting drop in oil pressure at the fuel control device enables the device to shut off the supply of fuel to the engine.
  • the coolant flow pressure controlled valve is connected into the oil line in parallel with another normally closed temperature responsive valve which is opened when the temperature of the coolant rises above aa predetermined value.
  • This invention relates to engine protective systems for shutting down internal combustion engines in response to abnormal pressure or temperature conditions existing in the lubricating or cooling systems of such engines. and is particularly directed to an improvement of engine protective systems of the type shown and described in US. Pat. Nos. 3.202.143 and 3.385.278.
  • the improvement provided by the present invention resides in the addition to systems of the character shown in US. Pat. Nos. 3.202.143 and 3.385.278. embodying an Oil Sentinel and .1 Heat Sentinel. of a Coolant Flow Pressure Sentinel in the form of a valve which is connected into the oil dump line leading from the Oil Sentinel back to the engine sump. in parallel with the Heat Sentinel. which valve is normally maintained in closed position by the flow pressure existing in the cooling system. If the coolant pressure drops below a predetermined value due to. for example. a break in a radiator hose. a leak in some other element of the cooling system. a faulty water pump or a slipping or broken fan belt.
  • a suitably calibrated spring opens the valve and permits the oil to flow through the dump line to the sump. This release of the oil pressure at the inlet of the valve in turn reduces the oil pressure within the Oil Sentinel and causes the latter to close off the supply of fuel to the engine.
  • FIG. I is a diagrammatic side elevational view of an internal combustion engine fitted with the improved protective system of the present invention.
  • FIG. 2 is a schematic diagram of the essential elements of the system shown in FIG. 1;
  • FIG. 3 is a vertical cross-sectional view of the coolant flow pressure controlled valve. or Coolant Flow Pressure Sentinel. diagrammatically illustrated in FIGS. 1 and 2, showing the valve in normally closed position.
  • the engine protective system illustrated in FIG. 1 comprises an oil pressure controlled engine shut-down device or Oil Sentinel A. a coolant temperature controlled shut-down device or Heat Sentinel B. and a coolant flow pressure controlled valve or Coolant Flow Pressure Sentinel C. in combination with a typical internal combustion engine or prime mover D having the usual carburetor E. fuel pump F. oil pump G. cooling jacket H. radiator l and fan J.
  • Oil Sentinel A and Heat Sentinel B are fully disclosed in the above-mentioned US. Pat. No. 3.202.143. the details of these devices will not be described herein.
  • Oil Sentinel A can be connected to the intake or pressure side of the fuel pump F and is mandatorily connected to the pressure side ofthe oil pump G.
  • Heat Sentinel B is simply threaded into a tapped opening in the jacket H. and has an oil inlet fitting connected by a pressure oil supply conduit 12 to the oil outlet fitting I4 of Oil Sentinel A. and an oil outlet fitting I6 connected by a non-pressure oil return conduit 18 leading to the sump 20 in the engine block.
  • Oil Sentinel A has an oil inlet fitting 22 which is connected by an oil supply conduit 24 to the oil pump G of the lubricating system of the engine with which it is associated. and includes an internal fuel valve interposed in the fuel line 26 of the engine which is maintained in an open position. permitting a free flow of fuel from the fuel inlet fitting 28. through the valve to the carburetor E. as long as the oil pressure in the lubricating system of the engine is maintained at or above the predetermined value established for operation of the Oil Sentinel A. However. when the oil pressure drops below said predetermined value. the fuel valve closes to shut off the flow of fuel to the engine. As described in US. Pat. No. 3.202.143. the Oil Sentinel A may also have its fuel valve partially opened by a manual control K when the operating oil pressure is insufficient to actuate the fuel valve to its full open position.
  • the Heat Sentinel B includes an internal valve interposed between the oil inlet 10 and the oil outlet 16 which is normally maintained closed by a suitably calibrated spring so as to prevent the flow of oil into the dump conduit 18. Also included is a fusion type thermal sensing element responsive to temperature variations in the coolant medium in the cooling jacket H which opens the valve. and thereby causes a drop in the oil pressure to which Oil Sentinel A is subject. sufficient to effect closing of the fuel valve. whenever the temperature of the coolant exceeds a predetermined value.
  • Coolant Flow Pressure Sentinel C comprises a two-part valve housing 30 having a lower part 32 wherein are formed an oil inlet 36. an oil outlet 38. a valve seat surrounding the upper end of the vertically extending portion 42 of inlet 36. and a plurality of downwardly extending passages 44 connecting the space within housing part 32 above the valve seat 40 with the horizontally extending oil outlet 38.
  • the upper part 34 of housing 30 has a vertically extending bore 46 in which are housed a disc valve assembly 48. preferably made of a suitable plastic material. and a spring which yieldably urges the valve assembly 48 upwardly toward the horizontally extending portion of the body part 34 forming the upper end of bore 46.
  • the two body parts are detachably connected to one another by screw threads 52, and a gasket 54 is interposed between the two parts so as to make the space within the body oiltight.
  • the upper portion of disc valve assembly 48 is fluted as indicated at 56. and houses a compression spring 58 which abuts the upper end of a Buna rubber disc valve 60 which. when the Coolant Flow Pressure Sentinel C is in normal operation. as shown in solid lines in H6. 3. engages the valve seat and prevents the flow of oil from inlet 36 to outlet 38.
  • a diaphragm valve operator assembly 62 comprising a diaphragm 64, a backup plate 66 fixed to the bottom surface of the diaphragm a valve operator 68 in a form of a plunger fixed to and extending verti cally downwardly from back-up plate 66 into engagement with the top of disc valve assembly 48., upper and lower diaphragm housing plates 70 and 72, the peripheries of which overlap and clinch therebetween the pe riphery of the diaphragm. and an internally threaded nipple member 74 fixed to the upper diaphragm housing plate 70 and opening downwardly into the space above the diaphragm.
  • Coolant Flow Pressure Sentinel C is connected across the pressure oil supply conduit 12 and the non-pressure oil return conduit 18 in parallel with the Heat Sentinel B; that is, the oil inlet 36 of valve housing 30 is connected to conduit 12 by a branch conduit 12'. while the oil outlet 38 of the valve housing is connected to conduit 18 by a branch conduit 18'. Furthermore. the nipple member 74 of the Coolant Flow Pressure Sentinel C is connected by a coolant conduit 76 to a hose 78 on the pressure side of the coolant pump (not shown) leading to the bottom of the radiator l. or to any other suitable part of the coolant circulating system.
  • the flow pressure of the coolant is applied to the upper surface of diaphragm 64 and, through valve operator 68, to the disc valve assemly 48 so as to force the latter downwardly against the force of spring and. as long as the coolant flow pressure exceeds a predetermined value. to hold the disc valve 60 in engagement with valve seat 40. thus preventing the flow of oil through the valve housing from conduit 12 to conduit 18' and thence into the sump 20.
  • the compression spring 50 serves to absorb any overtravel of the disc valve assembly after the Buna rubber disc valve 60 has come into engagement with the valve set 40.
  • Coolant Flow Pressure Sentinel C are so designed that the coolant pressure must drop below l.5 psi before the device is operative to shut off the supply of fuel to the engine in order to avoid false shut-downs.
  • pressure actuated means normally subject to the pressure of the oil in said lubricating system for maintaining said valve in open position as long as the pressure exerted on said means is at least equal to a predetermined value means operable to close said valve when the pressure exerted on said pressure actuated means drops below said predetermined value. and means responsive to the temperature of the coolant in said cooling system for reducing the pressure on said pressure actuated means below said predetermined value when said temperature rises above a predetermined temperature, the improvement which comprises:
  • the coolant flow pressure responsive means comprising a valve housing having an inlet connected to the pressure side of the lubricating system and an outlet connected to the nonpressure side of said system. a valve in said body controlling the flow of oil between said inlet and outlet, means subject to the flow pressure of the coolant in the cooling system for maintaining said valve in closed position when said coolant flow pressure is at least equal to a predetermined pressure, and yieldable means for opening said valve when the coolant flow pressure drops below said predetermined pressure.
  • said coolant flow pressure responsive means includes a diaphragm in said valve housing, means for subjecting one side of said diaphragm to the flow pressure of the coolant in the cooling system. a plunger having one end thereof in engagement with the other side of said diaphragm and the other end in abutment with said valve. said plunger urging said valve into closed position when the pressure exerted on said diaphragm is at least equal to said predetermined pressure, and yieldable means urging said valve toward open position.
  • a valve controlling the flow of oil between the oil inlet and outlet of said coolant flow pressure responsive means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lubrication Of Internal Combustion Engines (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)
US359598A 1973-05-11 1973-05-11 Engine protective system Expired - Lifetime US3877455A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US359598A US3877455A (en) 1973-05-11 1973-05-11 Engine protective system
CA189,932A CA989693A (en) 1973-05-11 1974-01-11 Engine protective system with fuel shut-off
AU64612/74A AU464974B2 (en) 1973-05-11 1974-01-17 Engine protective system
FR7403054A FR2228946B1 (de) 1973-05-11 1974-01-30
DE2405463A DE2405463C2 (de) 1973-05-11 1974-02-05 Vorrichtung zur Steuerung des einer Brennkraftmaschine zugeführten Kraftstoffes
IT20325/74A IT1006320B (it) 1973-05-11 1974-02-08 Sistema di protezione per motori a combustione interna
JP2847174A JPS5654445B2 (de) 1973-05-11 1974-03-12
SE7403286A SE405495B (sv) 1973-05-11 1974-03-12 Anordning for reglering av bresleflodet till en forbrenningsmotor
GB2015074A GB1437669A (en) 1973-05-11 1974-05-07 Cooling of internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359598A US3877455A (en) 1973-05-11 1973-05-11 Engine protective system

Publications (1)

Publication Number Publication Date
US3877455A true US3877455A (en) 1975-04-15

Family

ID=23414512

Family Applications (1)

Application Number Title Priority Date Filing Date
US359598A Expired - Lifetime US3877455A (en) 1973-05-11 1973-05-11 Engine protective system

Country Status (9)

Country Link
US (1) US3877455A (de)
JP (1) JPS5654445B2 (de)
AU (1) AU464974B2 (de)
CA (1) CA989693A (de)
DE (1) DE2405463C2 (de)
FR (1) FR2228946B1 (de)
GB (1) GB1437669A (de)
IT (1) IT1006320B (de)
SE (1) SE405495B (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080946A (en) * 1976-12-20 1978-03-28 Lenmar Industries, Inc. Internal combustion engine shut-down control valve
US4117822A (en) * 1977-04-22 1978-10-03 Sentinel Distributors, Inc. Engine protective device with restricted manual override
US4178901A (en) * 1978-02-07 1979-12-18 Cunningham Paul B Diesel truck road speed control
US4399785A (en) * 1981-08-25 1983-08-23 Sentinel Manufacturing Company, Incorporated Engine protective device responsive to low oil pressure
US4462352A (en) * 1981-08-25 1984-07-31 Sentinel Manufacturing Co., Inc. Engine protective device responsive to low oil pressure
US4476825A (en) * 1981-08-25 1984-10-16 Sentinel Manufacturing Company, Inc. Engine protective apparatus with remote override
US4483287A (en) * 1982-05-10 1984-11-20 Kysor Industrial Corporation Mechanical engine protection system
US4526140A (en) * 1982-05-10 1985-07-02 Kysor Industrial Corporation Mechanical engine protection system
US4751898A (en) * 1987-07-28 1988-06-21 Parker-Hannifin Corporation Coolant loss valve for engine protective system
US20090126818A1 (en) * 2007-11-21 2009-05-21 Diversatech, Inc. Apparatus for instantaneously terminating movement of flow material through a conduit
US20120285401A1 (en) * 2011-05-13 2012-11-15 Ford Global Technologies, Llc Internal combustion engine comprising a liquid cooling system and oil supply and method for operating such an internal combustion engine
US20130332047A1 (en) * 2011-02-17 2013-12-12 Siemens Aktiengesellschaft Method for operating a rail vehicle

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES437992A1 (es) * 1975-05-28 1976-04-16 San Sebastian Saizar Equipo de seguridad determinante de la parada automatica deun motor de combustion al producirse irregularidades en la presion del aceite o en la temperatura del agua.
JPS6027440B2 (ja) * 1976-06-25 1985-06-28 株式会社東芝 自動預金装置
US4351293A (en) * 1979-06-04 1982-09-28 Hewitt John T Diesel vehicle speed control system
JPS57199827U (de) * 1981-06-16 1982-12-18
JPH0670425B2 (ja) * 1985-09-30 1994-09-07 スズキ株式会社 内燃機関の表示制御装置
WO1997037110A1 (en) * 1996-03-29 1997-10-09 Novaheat Pty. Ltd. Cooling system alarm for fluid cooled internal combustion engines
KR102163244B1 (ko) 2018-04-19 2020-10-12 주식회사 비츠로넥스텍 내산화 코팅 조성물 및 이를 이용한 코팅층의 형성방법
CN111911262B (zh) * 2020-09-22 2022-03-25 浙江新柴股份有限公司 一种发动机机油压力控制方法及相应的发动机保护装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2212486A (en) * 1940-02-21 1940-08-20 Zoder Inc Safety apparatus
US3202143A (en) * 1963-09-24 1965-08-24 Sentinel Distributors Pressure and temperature responsive engine shut-down devices
US3246641A (en) * 1964-09-23 1966-04-19 Gen Motors Corp Engine protective device
US3302171A (en) * 1964-10-01 1967-01-31 Gen Motors Corp Vehicle engine coolant condition indicator
US3385278A (en) * 1966-10-11 1968-05-28 Sentinel Distributors Electronic actuator for an engine protective system
US3590798A (en) * 1969-04-21 1971-07-06 Sentinel Distributors Engine safety device responsive to abnormal oil pressure and coolant temperature conditions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH186048A (de) * 1934-12-01 1936-08-31 Sulzer Ag Elektrisch gesteuerte Sicherheitsvorrichtung zum Abstellen der Brennstoffzufuhr zu Brennkraftmaschinen.
DE969882C (de) * 1954-06-10 1958-07-24 Maybach Motorenbau G M B H Sicherung fuer eine Kolbenbrennkraftmaschine
DE1476415A1 (de) * 1966-07-15 1970-08-06 Sueddeutsche Kuehler Behr Einrichtung zur UEberwachung des Kuehlwasserstandes in Kuehlanlagen von Brennkraftmaschinen
DE2001934A1 (de) * 1970-01-16 1971-07-22 Sentinel Distributors Vorrichtung zur Regelung der Kraftstoffzufuhr zu einer Brennkraftmaschine in Abhaengigkeit von den Druckbedingungen der Druckumlaufschmierung derselben

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2212486A (en) * 1940-02-21 1940-08-20 Zoder Inc Safety apparatus
US3202143A (en) * 1963-09-24 1965-08-24 Sentinel Distributors Pressure and temperature responsive engine shut-down devices
US3246641A (en) * 1964-09-23 1966-04-19 Gen Motors Corp Engine protective device
US3302171A (en) * 1964-10-01 1967-01-31 Gen Motors Corp Vehicle engine coolant condition indicator
US3385278A (en) * 1966-10-11 1968-05-28 Sentinel Distributors Electronic actuator for an engine protective system
US3590798A (en) * 1969-04-21 1971-07-06 Sentinel Distributors Engine safety device responsive to abnormal oil pressure and coolant temperature conditions

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080946A (en) * 1976-12-20 1978-03-28 Lenmar Industries, Inc. Internal combustion engine shut-down control valve
US4117822A (en) * 1977-04-22 1978-10-03 Sentinel Distributors, Inc. Engine protective device with restricted manual override
US4178901A (en) * 1978-02-07 1979-12-18 Cunningham Paul B Diesel truck road speed control
US4399785A (en) * 1981-08-25 1983-08-23 Sentinel Manufacturing Company, Incorporated Engine protective device responsive to low oil pressure
US4462352A (en) * 1981-08-25 1984-07-31 Sentinel Manufacturing Co., Inc. Engine protective device responsive to low oil pressure
US4476825A (en) * 1981-08-25 1984-10-16 Sentinel Manufacturing Company, Inc. Engine protective apparatus with remote override
US4483287A (en) * 1982-05-10 1984-11-20 Kysor Industrial Corporation Mechanical engine protection system
US4526140A (en) * 1982-05-10 1985-07-02 Kysor Industrial Corporation Mechanical engine protection system
US4751898A (en) * 1987-07-28 1988-06-21 Parker-Hannifin Corporation Coolant loss valve for engine protective system
EP0301771A2 (de) * 1987-07-28 1989-02-01 Parker Hannifin Corporation Kühlmittelverlustventil für eine Sicherheitsanlage einer Brennkraftmaschine
EP0301771A3 (en) * 1987-07-28 1989-10-18 Parker Hannifin Corporation Coolant loss valve for engine protective system
US20090126818A1 (en) * 2007-11-21 2009-05-21 Diversatech, Inc. Apparatus for instantaneously terminating movement of flow material through a conduit
US8066032B2 (en) 2007-11-21 2011-11-29 Diversatech, Inc. Apparatus for instantaneously terminating movement of flow material through a conduit
US20130332047A1 (en) * 2011-02-17 2013-12-12 Siemens Aktiengesellschaft Method for operating a rail vehicle
US9784174B2 (en) * 2011-02-17 2017-10-10 Siemens Aktiengesellschaft Method for operating a rail vehicle
US20120285401A1 (en) * 2011-05-13 2012-11-15 Ford Global Technologies, Llc Internal combustion engine comprising a liquid cooling system and oil supply and method for operating such an internal combustion engine
US9121335B2 (en) * 2011-05-13 2015-09-01 Ford Global Technologies, Llc System and method for an engine comprising a liquid cooling system and oil supply

Also Published As

Publication number Publication date
CA989693A (en) 1976-05-25
FR2228946A1 (de) 1974-12-06
DE2405463A1 (de) 1974-11-28
IT1006320B (it) 1976-09-30
SE405495B (sv) 1978-12-11
GB1437669A (en) 1976-06-03
FR2228946B1 (de) 1980-04-04
AU464974B2 (en) 1975-09-11
AU6461274A (en) 1975-07-17
JPS5654445B2 (de) 1981-12-25
JPS501238A (de) 1975-01-08
DE2405463C2 (de) 1982-08-19

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AS Assignment

Owner name: INSTITUTE OF GENERAL AND PHYSICAL CHEMISTRY AND IN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNORS:SARVAZYAN, ARMEN P.;PONOMARJEV, VIKTOR;VUCELIC, DUSAN;AND OTHERS;REEL/FRAME:004983/0984;SIGNING DATES FROM 19881115 TO 19881125

Owner name: INSTITUTE OF GENERAL AND PHYSICAL CHEMISTRY AND IN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SARVAZYAN, ARMEN P.;PONOMARJEV, VIKTOR;VUCELIC, DUSAN;AND OTHERS;SIGNING DATES FROM 19881115 TO 19881125;REEL/FRAME:004983/0984

AS Assignment

Owner name: PARKER INTANGIBLES INC., A CORP. OF DE, DELAWARE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:PARKER-HANNIFIN CORPORATION;REEL/FRAME:005886/0169

Effective date: 19881221