US3529771A - Steam supply equipment - Google Patents
Steam supply equipment Download PDFInfo
- Publication number
- US3529771A US3529771A US856138A US3529771DA US3529771A US 3529771 A US3529771 A US 3529771A US 856138 A US856138 A US 856138A US 3529771D A US3529771D A US 3529771DA US 3529771 A US3529771 A US 3529771A
- Authority
- US
- United States
- Prior art keywords
- water
- combustion
- steam
- accumulator
- nozzle
- 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
Links
- 238000002485 combustion reaction Methods 0.000 description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 65
- 239000003599 detergent Substances 0.000 description 27
- 239000000446 fuel Substances 0.000 description 24
- 229910052757 nitrogen Inorganic materials 0.000 description 15
- 238000004140 cleaning Methods 0.000 description 10
- 238000007599 discharging Methods 0.000 description 9
- 239000007789 gas Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000001816 cooling Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 239000002283 diesel fuel Substances 0.000 description 2
- 239000003502 gasoline Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000004326 stimulated echo acquisition mode for imaging Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 244000020282 Solanum aculeatissimum Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003350 kerosene Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000013020 steam cleaning Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S3/00—Vehicle cleaning apparatus not integral with vehicles
- B60S3/04—Vehicle cleaning apparatus not integral with vehicles for exteriors of land vehicles
- B60S3/044—Hand-held cleaning arrangements with liquid or gas distributing means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1853—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines coming in direct contact with water in bulk or in sprays
Definitions
- This invention relates to steam supply equipment and especially to equipment for producing, handling and delivering through a discharge orifice or nozzle to a point of use a pressurized hot fluid mixture comprising the gaseous products of combustion of a fuel serving as a gaseous carrier for steam or particles of water, or both steam and water.
- the invention is particularly useful in connection with cleaning equipment and for this purpose the invention also preferably provides for the delivery of a detergent, along with the steam or particles of water.
- the invention is hereinafter described with special reference to its use in connection with cleaning equipment, but it is to be understood that many of the features, objects and advantages are of use in many other systems for producing, handling and delivering to a point of use a pressurized stream of combustion products carrying at least steam or water particles, or both.
- pressurized cleaning systems of known types commonly include a steam generator comprising extended lengths of tubing in the form of coils located in heat exchange relation to a combustion chamber.
- a steam generator comprising extended lengths of tubing in the form of coils located in heat exchange relation to a combustion chamber.
- steam is generated under pressure and then delivered to a discharge orifice or pressure nozzle through a flexible hose so that the nozzle may be directed to the desired areas to be cleaned.
- Equipment of this type is commonly employed in car wash establishments, automotive service stations, radiator and air conditioning repair shops, and other types of businesses where cleaning equipment is needed.
- Detergent is usually introduced into the system so that the nozzle delivers both hot detergent solution and steam to the point of use.
- the steam generating coils are very heavy and bulky, frequently comprising as muc'h as several hundred feet of metal tubing, are subject to soot and scale problems (which contribute to further heat losses), and are also susceptible to rapid deterioration as a result of corrosion and rust.
- the present invention also provides a steam supply or steam cleaning system in which fuel is continuously and efliciently burned at elevated pressures in a combustion chamber after which water is injected into the hot products of combustion prior to delivery thereof to a discharge or pressure nozzle at the point of use.
- a very large heat economy is effected in consequence of use of the combustion products as a portion of the pressurized hot fluid medium being delivered through the nozzles at the point of use.
- the combustion is effected under conditions which prevent the formation of noxious or toxic fumes or gases normally associated with the steam coil cleaning systems.
- the gaseous products of combustion prior to the introduction of water or detergent, comprise about 13.2% carbon dioxide, 0.2% oxygen, and about 86.6% of nitrogen and other inert gases, including water vapor.
- the steam supply system still further includes an accumulator for receiving the products of combustion and steam, and also detergent when used, at times when the discharge nozzle is shut 01f.
- the accumulator is arranged to provide for the separation of hot gaseous products of combustion from the water and to maintain the products and water under pressure. Provision is also made for separate delivery of the Water and gaseous products from the accumulator, the water being delivered through a controllable nozzle so that it will reflas into steam upon discharge to the atmosphere, thereby providing in the system a source of steam (and detergent if used), without admixture with gaseous products of combustion.
- the gaseous products are discharged from the accumulator separately from the water and the invention contemplates discharge of the gaseous products through a heat exchanger for heat exchange with the feed water to be introduced into the combustion products as they leave the combustion chamber.
- the major components of the system include the combustion chamber C, the air compressor P, the motor M, nozzles N, N, the fuel supply tank F, detergent supply tank D, and the accumulator A with which another nozzle Z is associated.
- the combustion chamber C is illustrated diagrammatically. The construction of this combustion chamber need not be considered herein, but for details of construction reference may be made to my copending application above identified.
- the preheated water for introduction through the nozzle 17 is derived from the connection 18 communicating with the jacket space surrounding the combustion chamher.
- the inlet '19 for the water introduced into the jacket 7 of the combustion chamber derives its supply from the cooling jacket 36 surrounding the cylinders of the compressor P, these parts all being diagrammatically indicated here because the details thereof form no part of the present invention per se.
- Various structural parts referred to just above and also herebelow are similarly identified in my copending application above identified, to which reference may be made for further details.
- the fuel is supplied from the tank F through the fuel supply line 20 having a solenoid operated shut oif valve 21 controlled by the switch 22.
- the fuel supply line is provided with a controllable needle valve 23.
- the air for combustion is delivered from the compressor P through the connection 24, which communicates with the connection 11 in turn communicating with the inlet 10.
- An air pressure gauge line 25 extends from the connection 11 to the pressure gauge 26.
- the water pump receives its supply through the line 30 which is connected with the heat exchanger 68 with which the water supply line 69 is also connected.
- the association of this heat exchanger with the accumulator A will be described more fully hereinafter.
- the water is delivered through the line 34 provided with an adjustable (preferably gate) valve 35.
- the water line 34 delivers the water to the cooling jacket 36 associated with the cylinders of the compressor P. After flowing through the compressor jacket the water is delivered through the connection 19 above referred to into the cooling jacket 7 surrounding the combustion chamber. As above mentioned, the water leaves the jacket for the combustion chamber through the fitting 18 and is introduced into the stream of combustion products by the nozzle 17.
- the flow from the fitting 18 to the nozzle 17 is controlled by the solenoid operated valve 37 which is controlled by the switch 38.
- the discharge 16 is connected by means of connection 42 with a T-fitting 70 which in turn is connected with 4 the fitting 71 from which the branch lines 50 and 51 are extended to the discharge or pressure nozzles N, N.
- a temperature gauge is provided and has a tempera ture responsive capsule 45a associated with the offtake 16, thereby providing a temperature reading of the gaseous mixture in the discharge.
- the pressure nozzles are of known construction and need not be considered in detail herein, but it is noted that each one of them is provided with a discharge orifice, for instance of /s" or A" diameter and also with a manual valve 52 which closes when released.
- detergent is fed into the system from the detergent supply tank D through a connection 54 having a manual shut off valve 54a and a controllable needle valve 55.
- the detergent supply line 54 introduces the detergent into the system through the fitting 71 from which the nozzle supply lines and 51 extend.
- the equipment may also include provision for pressurizing the fuel and detergent tanks from another source of air under pressure, for instance from the source indicated at 59 which is connected with the line 56.
- another source of air under pressure for instance from the source indicated at 59 which is connected with the line 56.
- the independent air supply line 59 desirably also has a shut off valve 62.
- the fuel and detergent supply tanks may alternatively be pressurized either by the compressor P or by an independent source of air or other gas under pressure, such as is commonly available in many shops, service stations, and the like. If desired, one or the other of these pressurizing systems may be omitted from the equipment.
- the motor M is adapted to be controlled by a switch 63, this switch also serving to control the ignition system indicated diagrammatically at 64 which supplies the desired current for the ignition device 65.
- the type of ignition system employed will depend upon the type of fuel being used. In the event of use of a gaseous or volatile fuel such as gasoline, a spark plug will ordinarily be used as the device indicated at 65, and in this case device 64 will be designed to supply the required high voltage current for spark plug operation. On the other hand in the event of employment of diesel oil as fuel, a glow plug may be employed at 65, and in this case the device 64 will be designed to provide the desired low voltage but high amperage current adapted to effect continuous heating of the ignition element of the glow plug.
- the present invention contemplates the use of an accumulator A in the form of a pressure vessel having lagging or insulation indicated at 72 adapted to prevent substantial heat loss.
- an accumulator A in the form of a pressure vessel having lagging or insulation indicated at 72 adapted to prevent substantial heat loss.
- the gas discharge line 75 delivers the gaseous products of combustion through the relief valve 76 into the heat exchanger 68, for ultimate discharge through the outlet 77.
- the gaseous products are brought into heat exchange relation with the feed water which is introduced at 69, thereby recovering heat from the combustion products before discharge thereof to atmosphere.
- the relief valve 76 in a typical installation will be set to open at a pre-set pressure, for example, 80100 p.s.i.
- a pressure gauge 78 is desirably associated with the gas offtake line 75.
- An oiftake 80 is provided at the bottom of the accumulator through which the water (and detergent if used) is delivered under pressure to the nozzle Z.
- This nozzle may be of the same general construction as described above with reference to the nozzles N, N, including a shut off valve 52 adapted to close when released.
- an orifice is preferably provided of a size from about 0.012 (#30) to about 0.0180" (#18), this orifice being located at the base end of the fan-shaped nozzle tip.
- Detergents may be introduced into the system by opening valve 55 and adjusting that valve to provide the quantity of detergent needed for any particular cleaning operation.
- Liquid (and detergent when used) may be delivered from the accumulator A through the nozzle Z by opening the valve 52 of that nozzle and thereby causing discharge through the small orifice adjacent the delivery end of the nozzle.
- This arrangement thus provides not only for delivery through nozzles N, N of steam (and detergent if used) in a stream of combustion products, but also provides for delivery of steam (and detergent if used) without the presence of combustion gases, through the nozzle Z.
- the combustion gases present in the discharge and for other purposes it is preferred not to have those gases present, and the system of the present invention has great flexibility because it provides alternatively for one or the other, or both types of discharge.
- the use of the accumulator is not only desirable for the reasons just pointed out but in addition because the accumulator, in effect, makes possible the recovery of both pressure and heat which would otherwise be lost.
- the transfer of heat to the make up or feed water in the heat exchanger 68 is especially advantageous as this preheats the water to some substantial degree even in advance of 6 the flow of that water through the jacket 36 of the compressor P and in advance of the flow of that water through the jacket 7 of the combustion chamber C. Because of these several stages of water preheating, by the time the water is injected into the stream of combustion products in the offtake 16 from the combustion chamber, the temperature of the water is already elevated to such an extent that flashing into steam is greatly facilitated.
- a heat exchanger such as indicated at 68, including, for example, a preheating stage in the cooling system of an internal combustion engine used (instead of motor M) to drive the compressor, for instance in the manner illustrated in FIG. 6 of my copending application above identified.
- water is preferably introduced through a nozzle adapted to effect spraying or atomization of the water.
- the quantity of water may be varied widely, with resultant variation in the amount and condition of the water or moisture present in the system.
- the quantity of water introduced would not be less than that quantity which could be completely converted to steam, by flash steam generation, as the incoming water meets the high temperature stream of combustion products.
- the compressor may be omitted.
- the air which is taken into the compressor through the inlet 28 should preferably be compressed to at least several atmospheres pressure, a range of pressure of from about 50 to about 300 p.s.i. being suitable and this will be an important factor in determining the pressure of operation of the system. Assuming that the operating pressure is about 100 p.s.i. in a typical installation, this increase in pressure of the air from atmospheric pressure raises the temperature of the air from normal atmospheric temperature or R), up to about 275 F. This preheating of the air is of course advantageous in the attainment of the desired combustion temperature.
- Any of a variety of fuels may be employed in the system, such as gasoline, kerosene, diesel oil, natural gas, propane fuels and other hydrocarbon fuels.
- Steam supply equipment including, in combination with a discharge nozzle, a combustion chamber having inlet means for fuel and air and an outlet with a connected conduit for discharging a stream of gaseous products of combustion, means for delivering air and fuel under pressure through the inlet means to the combustion chamber, means for delivering water into the stream of combustion products for flash steam generation and for delivery of the steam with the combustion products to the discharge nozzle, an accumulator, a connection extended from said conduit to the accumulator, a pressure operated valve providing for delivery of steam and gaseous products of combustion from said conduit into the accumulator when the pressure in said conduit exceeds a predetermined value, a pressure responsive valve for discharging gaseous products of combustion from an upper portion of the accumulator, and means for separately discharging water under pressure from a lower portion of the accumulator.
- Steam supply equipment including, in combination with a discharge nozzle, a combustion chamber having inlet means for fuel and air and an outlet with a connected conduit for discharging a stream of gaseous products of combustion, means for delivering air and fuel under pressure through the inlet means to the combustion chamber, means for delivering water into the stream of combustion products for flash steam generation and for delivery of the steam with the combustion products to the discharge nozzle, a closed vessel for accumulating steam and gaseous products of combustion under pressure, a connection extended from said conduit to said vessel, means providing for delivery of steam and gaseous products of combustion from said conduit into the vessel, means for discharging gaseous products of combustion from an upper portion of said vessel, and means for separately discharging Water under pressure from a lower portion of said vessel.
- Steam supply equipment including, in combination with a discharge nozzle having a shut-off valve, a combustion chamberhaving inlet means for fuel and air and an outlet with a connected conduit for discharging a stream of gaseous products of combustion, means for delivering air and fuel under pressure through the inlet means to the combustion chamber, means for delivering water into the stream of combustion products for flash steam generation and for delivery of the steam with the combustion products to the discharge nozzle, an accumulator, a connection extended from said conduit to the accumulator, a pressure operated valve means providing for delivery of steam and gaseous products of combustion from said conduit into the accumulator when the nozzle shut-off valve is closed, means for discharging gaseous products of combustion from an upper portion of the accumulator, and means for separately discharging water under pressure from a lower portion of the accumulator.
- Equipment according to claim 5 in which the means providing for delivery of steam and gaseous products into the accumulator comprises a check valve providing against reverse fluid fiow from the accumulator.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
Description
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US85613869A | 1969-09-08 | 1969-09-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3529771A true US3529771A (en) | 1970-09-22 |
Family
ID=25322934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US856138A Expired - Lifetime US3529771A (en) | 1969-09-08 | 1969-09-08 | Steam supply equipment |
Country Status (1)
Country | Link |
---|---|
US (1) | US3529771A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982695A (en) * | 1975-06-23 | 1976-09-28 | Brute, Inc. | Steam producing device |
EP2180961A1 (en) * | 2007-08-21 | 2010-05-05 | Jonas Philip Alexander Wiklund | Sanitation unit |
WO2017125630A1 (en) * | 2016-01-18 | 2017-07-27 | Istobal, S.A. | Metering device for a washing facility |
CN110341659A (en) * | 2019-07-16 | 2019-10-18 | 珠海格力智能装备有限公司 | Steam generation facility and steam car washer |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1825131A (en) * | 1925-09-01 | 1931-09-29 | Nat Cold Steam Company | Power unit and method of creating energy |
US2345614A (en) * | 1942-04-24 | 1944-04-04 | Job F Malsbary | Cleaning machine |
US2919070A (en) * | 1955-12-16 | 1959-12-29 | Arant Perry | Method of steam cleaning and liquid rinsing |
-
1969
- 1969-09-08 US US856138A patent/US3529771A/en not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1825131A (en) * | 1925-09-01 | 1931-09-29 | Nat Cold Steam Company | Power unit and method of creating energy |
US2345614A (en) * | 1942-04-24 | 1944-04-04 | Job F Malsbary | Cleaning machine |
US2919070A (en) * | 1955-12-16 | 1959-12-29 | Arant Perry | Method of steam cleaning and liquid rinsing |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3982695A (en) * | 1975-06-23 | 1976-09-28 | Brute, Inc. | Steam producing device |
EP2180961A1 (en) * | 2007-08-21 | 2010-05-05 | Jonas Philip Alexander Wiklund | Sanitation unit |
EP2180961A4 (en) * | 2007-08-21 | 2011-10-19 | Jonas Philip Alexander Wiklund | Sanitation unit |
WO2017125630A1 (en) * | 2016-01-18 | 2017-07-27 | Istobal, S.A. | Metering device for a washing facility |
CN110341659A (en) * | 2019-07-16 | 2019-10-18 | 珠海格力智能装备有限公司 | Steam generation facility and steam car washer |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: OMEGA ENERGY SYSTEMS, INC., A TX CORP Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JOHNSON, GENTRY E.;ADAPT, INC. A TX CORP;REEL/FRAME:004351/0868 Effective date: 19841022 Owner name: OMEGA ENERGY SYSTEMS, INC., A CORP OF TX Free format text: TERMINATION OF AGREEMENTS, EFFECTIVE SEPT. 27, 1984.;ASSIGNORS:JOHNSON, GENTRY E.;ADAPT, INC., A CORP OF TX;BLACK, ROBERT B.;AND OTHERS;REEL/FRAME:004351/0844;SIGNING DATES FROM 19841018 TO 19841022 Owner name: JOHNSON, GENTRY E. Free format text: RELEASE;ASSIGNORS:BLACK, ROBERT B.;OMEGA ENERGY SYSTEMS, INC. A CORP OF TX;REEL/FRAME:004351/0892 Effective date: 19841018 Owner name: ADAPT, INC., A TX CORP Free format text: RELEASE;ASSIGNORS:BLACK, ROBERT B.;OMEGA ENERGY SYSTEMS, INC. A CORP OF TX;REEL/FRAME:004351/0892 Effective date: 19841018 Owner name: BLACK, ROBERT B. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:JOHNSON, GENTRY E.;ADAPT, INC. A TX CORP;REEL/FRAME:004351/0868 Effective date: 19841022 Owner name: JOHNSON, GENTRY E. Free format text: TERMINATION OF AGREEMENTS, EFFECTIVE SEPT. 27, 1984.;ASSIGNORS:JOHNSON, GENTRY E.;ADAPT, INC., A CORP OF TX;BLACK, ROBERT B.;AND OTHERS;REEL/FRAME:004351/0844;SIGNING DATES FROM 19841018 TO 19841022 Owner name: BLACK, ROBERT B. Free format text: TERMINATION OF AGREEMENTS, EFFECTIVE SEPT. 27, 1984.;ASSIGNORS:JOHNSON, GENTRY E.;ADAPT, INC., A CORP OF TX;BLACK, ROBERT B.;AND OTHERS;REEL/FRAME:004351/0844;SIGNING DATES FROM 19841018 TO 19841022 Owner name: ADAPT, INC., A CORP OF TX Free format text: TERMINATION OF AGREEMENTS, EFFECTIVE SEPT. 27, 1984.;ASSIGNORS:JOHNSON, GENTRY E.;ADAPT, INC., A CORP OF TX;BLACK, ROBERT B.;AND OTHERS;REEL/FRAME:004351/0844;SIGNING DATES FROM 19841018 TO 19841022 |