US3842461A - Industrial vacuum apparatus - Google Patents

Industrial vacuum apparatus Download PDF

Info

Publication number
US3842461A
US3842461A US00360538A US36053873A US3842461A US 3842461 A US3842461 A US 3842461A US 00360538 A US00360538 A US 00360538A US 36053873 A US36053873 A US 36053873A US 3842461 A US3842461 A US 3842461A
Authority
US
United States
Prior art keywords
box
chamber
outlet
air
collection
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
US00360538A
Other languages
English (en)
Inventor
W Wurster
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.)
CARYLON Corp
WALKEE VACUUM SERVICES Ltd
Original Assignee
WALKEE VACUUM SERVICES Ltd
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 WALKEE VACUUM SERVICES Ltd filed Critical WALKEE VACUUM SERVICES Ltd
Priority to US00360538A priority Critical patent/US3842461A/en
Priority to JP5295674A priority patent/JPS5442184B2/ja
Priority to CA199,970A priority patent/CA1007814A/en
Application granted granted Critical
Publication of US3842461A publication Critical patent/US3842461A/en
Priority to JP14212578A priority patent/JPS5493516A/ja
Assigned to CARYLON CORPORATION, THE reassignment CARYLON CORPORATION, THE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: CHEMICAL BANK
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
    • E03F7/10—Wheeled apparatus for emptying sewers or cesspools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action

Definitions

  • ABSTRACT This invention provides a mobile vacuum unit com prising a mobile frame on which a collection box is mounted.
  • Snorkel intake means is adapted to draw air and entrained materials into the box through suction, and the box is adapted to dump collected materials at intervals.
  • the first branch includes means, such as liquid swirl means, for separating liquid and entrained particulate matter from the gas in the material coming from the collection box, while the second branch passes the mixed material through a bag filter unit.
  • Both branches re-combine at a two-way combining valve, and the outlet from the latter is in communication with the suction inlet of an air-pump, which exhausts through muffling means to the atmosphere.
  • This invention relates generally to vacuum cleaning apparatus, and has to 'do particularly with a mobilevacuum unit suitable for use in industrial applications where large amounts of wet or dry particulate matter not to be removed.
  • a snorkel or hose draws the waste material up to an inlet port of the collector box, within which a primary separation of heavy solid materials from the lighter, airborne materials takes place.
  • the heavy material falls to the bottom of the collector box, while the lighter material is withdrawn from the collector box along with air and passes through the mechanical filter, if one is provided.
  • the outlet'fromthe filter is connected to the intake of the air-pumping means, and the outlet from the latter is either exhausted directly to the atmosphere or is routed through a silencer (muffler) component before being blown into the atmosphere.
  • the apparatus of the prior art generally has two problem areas which it is the purpose of this invention to correct.
  • the first problem area relates to the inability of conventional machinery to adapt itself efficiently to both of the extreme conditionsunder which apparatus 'of this sort is required to function.
  • the one extreme condition is that in which the waste material to be removed has a very high liquid content; the other extreme condition is that in which the waste material to a be removed is essentially dry, and free from any liquid content.
  • many industrial situations which call for the use of mobile vacuum apparatus fall somewhere between the'twoextreme conditions.
  • the other problem area in conventional apparatus relates to the collector box itself, in which the largest and heaviest particles in the material being evacuated are collected.
  • the collector box In the case of both dry and wet materials, there is a tendency for the collected matter in the bottom of the collector box to form a sticky mass with a strong tendency to adhere to itself and to the insidesurfaces of the collector box, such that attempts to dislodge or dump the collected material out of the collec- OBJECTS OF THIS INVENTION
  • this invention provides a collector box for a mobile vacuum unit, the collector box being mounted to the vacuum unit for pivotal movement about a horizontalaxis between a collection position and a dumping position, and having a dumping opening through which materials contained in the box can exit gravitationally when the box is in the dumping position,
  • a closure member adapted to cover the opening when the box is in the collection position and to uncover the openingwhen the box is in the dumping position
  • the box having a first chamber adjacentto and in communication with said opening, a second chamber adjacent the first chamber and divided therefrom by a panel depending gravitationally from a horizontal pivot axis, the panel substantially isolating lower portions of the chambers from one another when the box is in the collection position but permitting communication between the lower portions of the chambers when the box is in the dumping position, an air outlet from the second chamber through which air can be withdrawn by suction, an air inlet into said first chamber through which air and entrained materials can be admitted due to suction, a passage for air from the first to the second chamber above the said panel, the first chamber being adapted to accumulate coarse solids entrained in the entering air, the second chamber containing separation means to facilitate the separation from the air of liquids and finer solids, the second chamber being so disposed with respect to the first chamber that upon pivoting of the box from the collection to the dumping position,
  • This invention further provides a mobile vacuum unit, comprising a mobile frame, a collector box mounted on said mobile frame, a snorkel communicating with said collector box and adapted to draw air and entrained materials into said box through suction, said box being adapted at intervals to dump materials contained therein, an outlet from said box leading to a twoway separating valve; a first conduit leading from said valve to the intake of a swirler unit having means for capturing air-entrained particles in a rotating stream of liquid, the outlet from said swirler unit leading through a second conduit to the tangential inlet to a demister unit having an exhaust outlet for gas at the top and a collection chamber for liquid at the bottom, pump means for recirculating liquid from said collection chamber to said swirler unit to enter said rotating stream of liquid, a third conduit from said exhaust outlet to one inlet of a two-way combining valve, a fourth conduit leading from said two-way separating valve to the inlet of a bag filter unit, a fifth conduit leading from the outlet of said bag filter unit to the other inlet of said
  • FIG. 1 is a perspective view of a mobile vacuum unit in accordance with this invention
  • FIG. 2 is a schematic view of the several components of the mobile unit of FIG. 1;
  • FIG. 3 is a detail view of a component thereof.
  • a vacuum unit shown generally at It is seen to include an elongated frame I2 adapted to ride on two sets of wheels 14 (only one set visible in FIG. I), a collector box 15 mounted on the rear of the frame 12, a gasoline or diesel engine I6 powering an airblower 18, a silencer 20, and intermediate filtering and separating apparatus seen generally at 22.
  • FIG. I Certain parts of the overall unit are not visible in FIG. I because of the mounting arrangement, and attention is now directed to FIG. 2, in which all essential components of this invention are schematically illustrated.
  • FIG. 2 shows a snorkel 24 which is flexible and is adapted to extend downwardly into a pit container, etc. 26 from which waste materials 28 are required to be removed.
  • the downstream end of the snorkel 24 communicates with an inlet opening 29 of the collector box 15.
  • the outlet opening 30 of the collector box I communicates with the inlet of a two-way separating valve 32.
  • the separating valve 32 includes a vertically adjustable separating disc 33 adapted to be moved between a first position in which it is shown in FIG. 2, and a second position in which it is urged against an upper valve seat 34. As illustrated, the disc 33 is located against a lower valve seat 36.
  • the disc 33 is adjustable by means of a threaded shaft 37 and a manual crank 38 at the lower end of the shaft. From the drawing it is easy to see that when the disc 33 is in its lowermost position all materials passing through the outlet opening 30 of the collector box and into the separating valve 32 are routed along a first conduit 40, whereas when the disc 33 is in its uppermost position such materials are routed through a further conduit 42.
  • the material passing through the outlet opening 30 of the collector box 15 passes upwardly along the first conduit 40 and enters a swirler unit 44 which may be of conventional construction.
  • the essential function of the swirler unit is to mix the incoming particle-laden gas with a liquid (preferably water) in a highly agitated state, whereby the liquid will entrain some at least of the particles originally in the gas.
  • Liquid is provided to the swirler unit 44 along at least one pipe 45 adapted to enter the upper portion of the swirler unit 44 tangentially. From the upper portion, the swirler unit 44 converges conically downwardly as shown at 46, and debouches into a second conduit 47 leading to a demister unit 49.
  • the second conduit 47 enters the demister unit 49 tangentially (although this is not illustrated in the essentially schematic drawing of FIG. 2), and the primary function of the demister unit 43 is to separate the now at least partially cleaned gas (air) from the liquid passing along the second conduit 47. Because of the tangential inlet, all of the material entering the demister unit 49 is thrown centrifugally against the cylindrical wall of the demister unit 49, and inertial forces tend to cause the liquid to hug the wall while the gas or air passes into the center of the demister unit 49 and exits upwardly into and through a third conduit 50 which communicates at its downstream end with one inlet 52 of a two-way combining valve 54.
  • a pump 58 withdraws liquid from the collection chamber 56 and pumps it through a pipe 60 into a first compartment 61 of a container 62.
  • the container 62 is provided with a vertical weir 63 which permits spilling of the liquid from the first compartment 61 into a second compartment 64 once the liquid in the first compartment 61 has risen sufficiently high.
  • a further pump 66 withdraws liquid from the second compartment 64 through a pipe 67 and pumps it at high pressure through the aforementioned pipe 45 leading tangentially into the upper portion of the swirler unit 44.
  • the liquid collection chamber 56 and the first compartment 61 of the container 62 both act to some degree as settling chambers in which the larger and heavier particles entrained in the liquid in the swirler unit 44 can settle out.
  • Means are provided (not shown in FIG. 2) for periodically cleaning out the liquid collection chamber 56 and the first compartment 61. These means are visible in FIG. 1 and include a first cleaning door 68 and a second cleaning door 70. The first cleaning door 68 in FIG. 1 is located toward the bottom of the liquid collection chamber 56, while the second cleaning door 70 is located at the bottom of the container 62.
  • the twoway combining valve 54 is essentially identical in construction and operation to the two-way separating valve 32.
  • rotation of the hand crank 72 of the combining valve 54 is adapted to raise and lower the separating disc 73 between two extreme positions, in one of which (that shown) the third conduit 50 communicates with the outlet 75 of the two-way combining valve 54.
  • the outlet 75 of the two-way combining valve 54 communicates with the inlet of a screen filter unit 77, which is not considered essential to the invention but may be provided if desired for any reason.
  • a screen filter unit 77 which is not considered essential to the invention but may be provided if desired for any reason.
  • the air simply passes through the air-blower l8, thence through the silencer 20, and from there is exhausted to the atmosphere at 80.
  • both the separating valve 32 and the combining valve 54 are now adjusted to the other position for each, that opposite to the positions in which they have been drawn in FIG. 2, it will cause the material passing through the outlet opening 30 of the collector box to pass downwardly through the conduit 42, which will be referred to hereinafter as the fourth conduit.
  • Material passing into and along the fourth conduit 42 enters the lower chamber 82 of a dust collector 83 which may of standard construction.
  • a dust collector 83 In order for gas to pass from the lower chamber 82 into the upper chamber 84 of the dust collector 83, it must first pass through walls of a plurality of separator bags 86, the interiors of which communicate with the upper chamber 84.
  • the dust collector 83 In passing through to the interior of the separator bags 86, the dust in the air is stopped and collects on the outside of the separator bags 86.
  • the dust collector 83 is provided with blow-back means (not shown) which fires a short blast of high pressure air into the interior of the separator bags for the purpose of cleaning the exteriors of accumulated material.
  • the accumulated material thus dislodged falls down to the bottom of the lower chamber 82, and can be removed therefrom either continuously or periodically by means of worm conveyors such as that shown schematically at 88. Because the construction of the dust collector 83 is conventional, it has not been shown in great detail in FIG. 2.
  • the cleaned air passes into a fifth conduit 90, which in turn communicates with the other inlet to the combining valve 54.
  • the air passing along and through the fifth conduit 90 passes directly into the screen filter unit 77, and thence through the air-blower l8 and silencer 20, just as before.
  • the overall mobile vacuum unit just described is capable of processing material-laden air through either one of two alternative filtering paths.
  • the path which includes the swirler unit 44 and the demister unit 49 is preferred when the air and the dust passing through the outlet opening 30 has a high moisture content.
  • the path through the dust collector 83 is preferred when the-air and dust passing through the outlet 30 has a low moisture content. If a high-moisture air and dust mixture were passed through the dust collector 83, it would tend to gum up the separator bags 86, such that these could not be efficiently cleaned by the blow-back process.
  • the passage of a moisture-free mixture through the other path that including the swirler unit 44 and the demister unit 49), the fact that the dust in the air does not it- 6 eterious effects will be noticed in the equipment itself.
  • the collector box 15 has a dumping opening 93 through which materials accumulated in the box can exit gravitationally when the box is in the dumping position, and the box further includes a door 94, or other suitable closure member, adapted to cover the opening 93 when the box is in the collection position (that shown) and to uncover the opening when the box is in the dumping position.
  • the door is drawn in broken lines in the position it takes up relative to the collector box 15 when the latter is rotated counter-clockwise into the dumping position.
  • the interior of the collector box 15 is divided into a first chamber 95 which is adjacent to and in communication with the opening 93, and a second chamber 97 which is adjacent the first chamber 95 and is divided from the first chamber by a panel 98 which hangs down gravitationally from a horizontal pivot axis 100.
  • the box 15 is essentially square in vertical, lateral and horizontal section, it will be seen in FIG. 2 that the bottom of the collector box 15 has a step 102 between the first chamber 95 and the: second chamber 97, with the floor of the second chamber 97 being somewhat higher than the floor of the first chamber 95.
  • the panel 98 is adapted to close against the step 102 when the collector box 15 is in the collection position in which it is shown in FIG. 2.
  • a fixed wall portion 103 extends upwardly to the location of a fixed horizontal partition 104.
  • the fixed horizontal partition 104 defines the upper limit of the second chamber 97.
  • a coarse screen or filter panel 106 which is pivoted about a horizontal axis 107 for movement between the solid-line position shown in FIG. 2 and the dotted-line position shown in FIG. 2.
  • An upper screen 108 extends upwardly from the top of the panel 106 when it is in its normal, closed position (solid-line position in FIG. 2).
  • an oblique panel 112 extends forwardly and downwardly to join the forward wall 114 of the collector box 15.
  • oblique panel 112 meets the forward wall 114 above the location of the fixed horizontal partition 104.
  • This separating unit 116 includes an outer cylindrical housing 118, a lower conical converging nozzle 120, a centrally supported outlet pipe 122 coaxial with the cylindrical housing 118 and extending upwardly thereabove, and a plurality of helical vanes 124 positioned between the outlet pipe 122 and the cylindrical housing 118 at the upper extremity of the latter.
  • the outlet pipe 122 extends through the oblique panel 112, whereby air exiting through the outlet pipe 122 enters the space above and to the right of the oblique panel 112. Apart from the outlet pipe 122, the obliquie panel 112 completely isolates the inlet 29 from the outlet 30.
  • the action of the collector box 15 is as follows.
  • the snorkel 24 draws a mixture of air, dust, particulate material and possibly moisture upwardly and debouches it into the first chamber 95 of the collector box 15.
  • the heavier or coarser materials Into the first chamber 95 are deposited the heavier or coarser materials, and these accumulate and build up at the bottom of the first chamber 95.
  • the air and the remaining particulate material not deposited in the first chamber 95 pass through the filter panel 106 and the upper screen 108 into the area directly above the fixed horizontal partition 104.
  • the air-dust mixture then passes between the outlet pipe 122 and the cylindrical housing 118 and is caused to swirl or rotate by the helical vanes 124, as shown by the directional arrows.
  • This swirling action causes a centrifugal separating process to take place, in which the heavier dust particles are thrown outwardly, and fall downwardly through the nozzle 120 to collect at the bottom of the second chamber 97.
  • Any appreciable quantities of moisture or other liquid entrained in the air passing into the separating unit 116 is also accumulated in the bottom of the second chamber 97. Due to the high efficiency of the separating unit 116 in removing moisture, it usually happens that the material collected in the bottom of the second chamber 97 has a higher moisture content than that collected in the bottom of the first chamber 95.
  • the air from which the material in the bottom of the second chamber 97 has been separated passes upwardly through the outlet pipe 122, emerges above the oblique panel 112, and passes directly through the outlet opening 30 of the collector box 15.
  • the panel 98 As the bottom of the panel 98 begins to move leftwardly into the first chamber 95, it automatically exerts a shoving pressure against the accumulated material in that chamber, and at the same time it permits the more aqueous and thus more mobile material accumulated in the bottom of the second chamber 97 to pass under the panel'98 and into the first chamber 95. Because of the step 102, the accumulated material in the bottom of the second chamber 97 has the equivalent of a head" with respect to the material in the first chamber, and because material in the second chamber is more liquid, it.
  • the head represented by the step 102 is additive to the natural elevation of the second chamber above the first chamber due to the counter-clockwise rotation of the collector box 15 with respect to the elongated frame 12.
  • separating units 116 located in the second chamber 97. If more than one are to be used, they would preferably be aligned in the direction normal to the drawing sheet in FIG. 2, so that the separating unit 116 drawn in that figure would appear exactly aligned with any others provided.
  • cylinder means 126 can be provided as shown in FIG. 1.
  • a further cylinder 128 shown in FIG. 2 is provided for moving the collector box 15 between its collection position and its dumping position.
  • a pivotal locking means 126 which is shown to greater scale in FIG. 3.
  • the panel 98 has a protruding L-bar or equivalent member 99 welded or otherwise affixed along its lower, horizontal edge 130.
  • a shaft 132 is mounted for manual rotation in at least two bearing members 134 (only one visible in the figures) upstanding from the floor 135 of the box 15 in the first chamber thereof.
  • Fixed to the shaft 132 for rotation therewith are a plurality of cam members 137 each having a camming edge 138 adapted to contact the L-bar 99 with a point contact.
  • all edges of each cam member are knife edges, to facilitate movement of the cam members through an accumulation of particulate material at the bottom of the first chamber 95.
  • the shaft 132 extends outwardly through at least one side wall of the box 15, and has affixed to its end a manual crank (now shown).
  • the first chamber 95 in the box 15 can be provided with flexible partitions depending from the top wall and extending lower than the inlet opening 29, in order to ensure some baffle action within the chamber 95 that will encourage the coarse materials to settle in the chamber 95 rather than to pass directly through the filtering panel 106.
  • a mobile vacuum unit comprising a mobile frame, a collection box mounted on said mobile frame, a snorkel communicating with said collection box and adapted to draw air and entrained materials into said box through suction, said box being adapted at intervals to dump materials contained therein, an outlet from said box leading to a two-way separating valve;
  • the collection box is mounted to said vacuum unit for pivotal movement about a horizontal axis be tween a collection position and a dumping position, and having a dumping opening through which said materials contained therein can exit gravitationally when the box is in the dumping position, a closure member adapted to cover the opening when the box is in the collection position and to uncover the opening when the box is in the dumping position, the box having a first chamber adjacent to and in communication with said dumping opening, a second chamber adjacent the first chamber and divided therefrom by a panel depending gravitationally from a horizontal pivot axis, the panel substantially isolating lower portions of the chambers from one another when the box is in the collection position but permitting communication between the lower portions of the chambers when the box is in the dumping position, said outlet from said box communicating with the second chamber, said snorkel communicating with said first chamber of the collection box, the collection box providing a passage for air from theefirst to the second chamber above the said panel, the first chamber being adapted to accumulate coarse solids entrained in the entering air,
  • a mobile vacuum unit comprising a mobile frame
  • a collection box mounted on said mobile frame, a snorkel communicating with said collection box and adapted to draw air and entrained materials into said box through suction, said box being adapted at intervals to dump materials contained therein, an outlet from said box leading to a two-way separating valve;
  • first conduit leading from said. valve to first means adapted to mix materials passing through said first conduit with liquid in a highly agitated state, thereby to entrain in the liquid particulate matter in said materials, second means for separating liquid and entrained particulate matter from gas in said materials,

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning Of Streets, Tracks, Or Beaches (AREA)
  • Sewage (AREA)
  • Cleaning In General (AREA)
  • Separating Particles In Gases By Inertia (AREA)
US00360538A 1973-05-15 1973-05-15 Industrial vacuum apparatus Expired - Lifetime US3842461A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US00360538A US3842461A (en) 1973-05-15 1973-05-15 Industrial vacuum apparatus
JP5295674A JPS5442184B2 (enrdf_load_stackoverflow) 1973-05-15 1974-05-14
CA199,970A CA1007814A (en) 1973-05-15 1974-05-15 Industrial vaccum apparatus
JP14212578A JPS5493516A (en) 1973-05-15 1978-11-17 Movable vacuum unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00360538A US3842461A (en) 1973-05-15 1973-05-15 Industrial vacuum apparatus

Publications (1)

Publication Number Publication Date
US3842461A true US3842461A (en) 1974-10-22

Family

ID=23418407

Family Applications (1)

Application Number Title Priority Date Filing Date
US00360538A Expired - Lifetime US3842461A (en) 1973-05-15 1973-05-15 Industrial vacuum apparatus

Country Status (3)

Country Link
US (1) US3842461A (enrdf_load_stackoverflow)
JP (2) JPS5442184B2 (enrdf_load_stackoverflow)
CA (1) CA1007814A (enrdf_load_stackoverflow)

Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3955236A (en) * 1974-07-26 1976-05-11 Richard W. Burt, Jr. Collector system in a vacuum sweeper circuit
US3973935A (en) * 1974-01-10 1976-08-10 Super Products Corporation Dust filtration system
US3989184A (en) * 1973-06-26 1976-11-02 Hartmut Albishausen Apparatus for collecting and classifying a mixture of solid, gaseous and liquid constituents
US4124409A (en) * 1976-11-05 1978-11-07 Gladden James B Pneumatic bulk material removal apparatus and method
US4162149A (en) * 1978-01-03 1979-07-24 Mekelburg Clayton G Gravel and dust separator and container for vacuum cleaning systems
US4183116A (en) * 1978-04-21 1980-01-15 Thompson David L Wet-dry vacuum sweeper
US4227893A (en) * 1978-09-01 1980-10-14 Peabody-Myers Corporation Mobile vacuum loader
US4268281A (en) * 1979-03-23 1981-05-19 Kobe, Inc. Method of removing particulate contaminants from a gas stream
US4323377A (en) * 1980-11-03 1982-04-06 Dustell Ltee Mobile dust collector
US4336041A (en) * 1980-11-03 1982-06-22 Dustell Ltee Mobile dust collector used on quarries
US4484643A (en) * 1983-06-27 1984-11-27 Methane Drainage Ventures Gas-liquid-solids separation system
US4509963A (en) * 1982-04-01 1985-04-09 Wm. W. Meyer & Sons, Inc. Industrial vacuum cleaner
US4707277A (en) * 1985-03-20 1987-11-17 Uddo Mims International, Inc. Method and apparatus for removing granular material from an aeration basin
US4718924A (en) * 1986-05-30 1988-01-12 Demarco Thomas M Two compartment four stage industrial dust collector
US4735639A (en) * 1986-06-09 1988-04-05 Vacuum America Corporation Modular industrial vacuum loading apparatus for ingesting and collecting debris and filtering discharged air
US4830761A (en) * 1988-04-29 1989-05-16 Leach Jack S Cooling tower cleaning system
US4869737A (en) * 1989-01-12 1989-09-26 Parenti Joseph A Apparatus for cleaning air in coal mines
US5002595A (en) * 1989-01-09 1991-03-26 Samson Metal & Machine, Inc. Debris and water vacuum system
US5030259A (en) * 1989-12-18 1991-07-09 Guzzler Manufacturing, Inc. Portable vacuum cleaning system
US5062868A (en) * 1990-08-09 1991-11-05 Aaxon Industrial, Inc. Method and apparatus for unloading mobile vacuum loaders
US5068940A (en) * 1990-11-01 1991-12-03 Ray Harvey Company, Inc. Apparatus for cleaning sewers
US5108471A (en) * 1991-05-17 1992-04-28 Poborsky Gary A Single mode wet and dry vacuum vehicle
US5167719A (en) * 1989-10-19 1992-12-01 Kabushiki Kaisha Tokkihan Method for removal of sprayed-on asbestos
US5167841A (en) * 1985-03-20 1992-12-01 Uddo-Mims-International Removing material debris from body of water
US5171446A (en) * 1991-01-15 1992-12-15 Shen Hsin Der Pollutant emission control system
EP0524228A4 (en) * 1990-04-10 1993-03-24 Spoutvac Manufacturing Pty. Ltd. Suction cleaning systems
US5236479A (en) * 1992-06-01 1993-08-17 Precision Cutters, Inc. Cyclone separator
WO1993025326A1 (en) * 1992-06-15 1993-12-23 Derlein Donald A Improved pipe cleaning modules and systems and methods for their use
US5287589A (en) * 1992-08-31 1994-02-22 Container Products Corp. Self-contained cleaning and retrieval apparatus
US5341539A (en) * 1990-11-01 1994-08-30 Sheppard Sheron R Apparatus for cleaning waste collection system
US5353469A (en) * 1992-07-01 1994-10-11 National Super Service Company Wet/dry vacuum cleaner with noise reducing housing structure
US5409512A (en) * 1993-11-10 1995-04-25 Commerical Sweeper Systems, Inc. Air filtration system
US5425188A (en) * 1993-02-27 1995-06-20 Vmb Vesta Maschinenbau Gmbh Co. Kg Suction excavator
US5616156A (en) * 1994-04-11 1997-04-01 Marc Keersmaekers Device for the cleansing of the flue gases from waste incineration installations
US5815881A (en) * 1993-10-22 1998-10-06 Sjoegreen; Joergen Universal vacuum cleaner
US5840102A (en) * 1996-04-01 1998-11-24 Mccracken; Hilton G. Mobile pneumatic material transfer machine
US5946767A (en) * 1998-04-02 1999-09-07 Gapvax, Inc. Pipe cleaning vehicle
US6428590B1 (en) * 2000-01-03 2002-08-06 Tennant Company Filter system for mobile debris collection machine
US6569217B1 (en) * 2000-05-10 2003-05-27 Thomas M. DeMarco Industrial dust collector with multiple filter compartments
US6764604B1 (en) 2002-02-14 2004-07-20 Nezat, Ii Malvin A. Sewer line pumping system
US20060081503A1 (en) * 2004-10-19 2006-04-20 Wegner Paul C Method and system for separating particulate matter
US20060179603A1 (en) * 2005-02-14 2006-08-17 Polston Henry B Apparatus for cleaning pipes having pumping and vacuuming capability
US7156889B1 (en) 2003-07-15 2007-01-02 Astec, Inc. Assembly for removing dust from gas stream
US20080092734A1 (en) * 2006-10-07 2008-04-24 Tbw Industries Inc. Vacuum line clean-out separator system
US20080271420A1 (en) * 2007-03-07 2008-11-06 Richard William Wellens Cyclonic Filter For Surface Maintenance Machine
US7540384B2 (en) * 2004-10-12 2009-06-02 Great River Energy Apparatus and method of separating and concentrating organic and/or non-organic material
US7987613B2 (en) 2004-10-12 2011-08-02 Great River Energy Control system for particulate material drying apparatus and process
US8062410B2 (en) 2004-10-12 2011-11-22 Great River Energy Apparatus and method of enhancing the quality of high-moisture materials and separating and concentrating organic and/or non-organic material contained therein
US20120248012A1 (en) * 2011-03-30 2012-10-04 Bayer Materialscience Ag Mobile classifier
US8523963B2 (en) 2004-10-12 2013-09-03 Great River Energy Apparatus for heat treatment of particulate materials
US8579999B2 (en) 2004-10-12 2013-11-12 Great River Energy Method of enhancing the quality of high-moisture materials using system heat sources
US8651282B2 (en) 2004-10-12 2014-02-18 Great River Energy Apparatus and method of separating and concentrating organic and/or non-organic material
US20140196246A1 (en) * 2013-01-11 2014-07-17 Super Products Llc Mobile water reclaiming system
CN105586848A (zh) * 2016-03-04 2016-05-18 武汉理工大学 扫路车卸灰真空控尘装置
CN107313383A (zh) * 2017-06-10 2017-11-03 李子木 一种用于杨絮清理收集的装置及其方法
USD813474S1 (en) * 2015-10-26 2018-03-20 Katch Kan Holdings Ltd. Washing apparatus
US20180119375A1 (en) * 2015-04-16 2018-05-03 Reschwitzer Saugbagger Produktions Gmbh Suction excavator with flow reversal and method for controlling same
US10087613B2 (en) 2013-01-11 2018-10-02 Super Products Llc Mobile water reclaiming system
US20190030476A1 (en) * 2017-07-31 2019-01-31 Filblast Pty Ltd Mobile dust extraction device
US20190150683A1 (en) * 2017-11-22 2019-05-23 Guido Valentini Vacuum Cleaner
US10337167B2 (en) * 2006-10-06 2019-07-02 Mclaughlin Group, Inc. Collection tank
US10443210B2 (en) * 2004-10-22 2019-10-15 Mclaughlin Group, Inc. Digging and backfill apparatus
US20200123736A1 (en) * 2017-04-24 2020-04-23 Rsp Gmbh Suction dredger having a swiveling filter unit
US20220287537A1 (en) * 2021-03-11 2022-09-15 Chengdu Quanjing Intelligent Technology Co., Ltd. Base station and cleaning equipment
US11535321B1 (en) * 2022-08-24 2022-12-27 Russell R. Gohl Trailer system
US11801785B2 (en) 2020-06-17 2023-10-31 Vermeer Manufacturing Company Vacuum excavator tank and door system
US11839892B2 (en) 2021-06-09 2023-12-12 Russell R. Gohl Cavity cleaning and coating system
US20240260804A1 (en) * 2021-05-24 2024-08-08 Liang Cai Change-over valve and vacuum cleaner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58143034A (ja) * 1982-02-19 1983-08-25 新明和工業株式会社 吸引車
JPS59213810A (ja) * 1983-05-20 1984-12-03 株式会社永田製作所 塵埃等の収集装置
JP2559290B2 (ja) * 1990-10-26 1996-12-04 憲 田中 パイプ内面の洗浄捕集方法およびその装置

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1103509A (en) * 1913-03-28 1914-07-14 Harker Fire Extinguisher & Fumigator Company Ltd Apparatus for scrubbing and cooling gases for use in fumigating and fire-extinguishing and like purposes.
US1793460A (en) * 1926-04-01 1931-02-24 Caloroil Burner Corp Oil separator and reclaimer
GB554358A (en) * 1942-04-15 1943-06-30 Chema Mfg Company Ltd Improvements in air filtration plants
US2690813A (en) * 1947-05-17 1954-10-05 Diebold Pierre Separator for dust carrying gases
GB755381A (en) * 1954-08-04 1956-08-22 Karl Heinz Schorling Improvements in street-sweeping machines
US2824335A (en) * 1955-02-17 1958-02-25 Handling Devices Co Inc Mobile suction floor cleaner
US2830674A (en) * 1954-02-09 1958-04-15 Buehler Ag Geb Apparatus for transporting pulverulent materials
US3300807A (en) * 1964-12-07 1967-01-31 Aaron B Karas Cleaning apparatus
US3404470A (en) * 1965-10-20 1968-10-08 Raiti James Automotive trucks used by street and highway departments
US3404776A (en) * 1966-08-10 1968-10-08 Myers Sherman Co Apparatus for collecting loose materials in a portable collector
US3406423A (en) * 1967-01-30 1968-10-22 Werner W. Young Street cleaning machine
US3431583A (en) * 1966-05-04 1969-03-11 Central Eng Co Inc Sound attenuator for vacuum-type debris collector
US3482377A (en) * 1966-06-07 1969-12-09 Reactor Centrum Nederland Ventilation appliances for a processing chamber
US3540073A (en) * 1969-02-19 1970-11-17 Us Air Force Mobile dust and debris collection and inertial dust separator for airport runways and/or street cleaning
US3541631A (en) * 1968-08-05 1970-11-24 D P Way Corp Industrial vacuum loader and cleaner
US3587130A (en) * 1969-09-04 1971-06-28 Werner W Young Street-cleaning machine

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1103509A (en) * 1913-03-28 1914-07-14 Harker Fire Extinguisher & Fumigator Company Ltd Apparatus for scrubbing and cooling gases for use in fumigating and fire-extinguishing and like purposes.
US1793460A (en) * 1926-04-01 1931-02-24 Caloroil Burner Corp Oil separator and reclaimer
GB554358A (en) * 1942-04-15 1943-06-30 Chema Mfg Company Ltd Improvements in air filtration plants
US2690813A (en) * 1947-05-17 1954-10-05 Diebold Pierre Separator for dust carrying gases
US2830674A (en) * 1954-02-09 1958-04-15 Buehler Ag Geb Apparatus for transporting pulverulent materials
GB755381A (en) * 1954-08-04 1956-08-22 Karl Heinz Schorling Improvements in street-sweeping machines
US2824335A (en) * 1955-02-17 1958-02-25 Handling Devices Co Inc Mobile suction floor cleaner
US3300807A (en) * 1964-12-07 1967-01-31 Aaron B Karas Cleaning apparatus
US3404470A (en) * 1965-10-20 1968-10-08 Raiti James Automotive trucks used by street and highway departments
US3431583A (en) * 1966-05-04 1969-03-11 Central Eng Co Inc Sound attenuator for vacuum-type debris collector
US3482377A (en) * 1966-06-07 1969-12-09 Reactor Centrum Nederland Ventilation appliances for a processing chamber
US3404776A (en) * 1966-08-10 1968-10-08 Myers Sherman Co Apparatus for collecting loose materials in a portable collector
US3406423A (en) * 1967-01-30 1968-10-22 Werner W. Young Street cleaning machine
US3541631A (en) * 1968-08-05 1970-11-24 D P Way Corp Industrial vacuum loader and cleaner
US3540073A (en) * 1969-02-19 1970-11-17 Us Air Force Mobile dust and debris collection and inertial dust separator for airport runways and/or street cleaning
US3587130A (en) * 1969-09-04 1971-06-28 Werner W Young Street-cleaning machine

Cited By (93)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3989184A (en) * 1973-06-26 1976-11-02 Hartmut Albishausen Apparatus for collecting and classifying a mixture of solid, gaseous and liquid constituents
US3973935A (en) * 1974-01-10 1976-08-10 Super Products Corporation Dust filtration system
US3955236A (en) * 1974-07-26 1976-05-11 Richard W. Burt, Jr. Collector system in a vacuum sweeper circuit
US4124409A (en) * 1976-11-05 1978-11-07 Gladden James B Pneumatic bulk material removal apparatus and method
US4162149A (en) * 1978-01-03 1979-07-24 Mekelburg Clayton G Gravel and dust separator and container for vacuum cleaning systems
US4183116A (en) * 1978-04-21 1980-01-15 Thompson David L Wet-dry vacuum sweeper
US4227893A (en) * 1978-09-01 1980-10-14 Peabody-Myers Corporation Mobile vacuum loader
US4268281A (en) * 1979-03-23 1981-05-19 Kobe, Inc. Method of removing particulate contaminants from a gas stream
US4323377A (en) * 1980-11-03 1982-04-06 Dustell Ltee Mobile dust collector
US4336041A (en) * 1980-11-03 1982-06-22 Dustell Ltee Mobile dust collector used on quarries
US4509963A (en) * 1982-04-01 1985-04-09 Wm. W. Meyer & Sons, Inc. Industrial vacuum cleaner
US4484643A (en) * 1983-06-27 1984-11-27 Methane Drainage Ventures Gas-liquid-solids separation system
US4707277A (en) * 1985-03-20 1987-11-17 Uddo Mims International, Inc. Method and apparatus for removing granular material from an aeration basin
US5167841A (en) * 1985-03-20 1992-12-01 Uddo-Mims-International Removing material debris from body of water
US4718924A (en) * 1986-05-30 1988-01-12 Demarco Thomas M Two compartment four stage industrial dust collector
EP0252265A3 (en) * 1986-05-30 1988-08-24 Thomas M. Demarco Two compartment four stage industrial dust collector
US4735639A (en) * 1986-06-09 1988-04-05 Vacuum America Corporation Modular industrial vacuum loading apparatus for ingesting and collecting debris and filtering discharged air
US4830761A (en) * 1988-04-29 1989-05-16 Leach Jack S Cooling tower cleaning system
US5002595A (en) * 1989-01-09 1991-03-26 Samson Metal & Machine, Inc. Debris and water vacuum system
US4869737A (en) * 1989-01-12 1989-09-26 Parenti Joseph A Apparatus for cleaning air in coal mines
US5167719A (en) * 1989-10-19 1992-12-01 Kabushiki Kaisha Tokkihan Method for removal of sprayed-on asbestos
US5030259A (en) * 1989-12-18 1991-07-09 Guzzler Manufacturing, Inc. Portable vacuum cleaning system
EP0524228A4 (en) * 1990-04-10 1993-03-24 Spoutvac Manufacturing Pty. Ltd. Suction cleaning systems
US5062868A (en) * 1990-08-09 1991-11-05 Aaxon Industrial, Inc. Method and apparatus for unloading mobile vacuum loaders
US5622571A (en) * 1990-08-10 1997-04-22 Pipeline Services, Inc. Pipe cleaning modules and systems and methods for their use
US5435854A (en) * 1990-08-10 1995-07-25 Pipeline Sewer Services, Inc. Pipe cleaning modules and systems and methods for their use
US5068940A (en) * 1990-11-01 1991-12-03 Ray Harvey Company, Inc. Apparatus for cleaning sewers
US5336333A (en) * 1990-11-01 1994-08-09 Sheppard Sheron R Method for cleaning waste collection systems
US5341539A (en) * 1990-11-01 1994-08-30 Sheppard Sheron R Apparatus for cleaning waste collection system
US5171446A (en) * 1991-01-15 1992-12-15 Shen Hsin Der Pollutant emission control system
US5108471A (en) * 1991-05-17 1992-04-28 Poborsky Gary A Single mode wet and dry vacuum vehicle
US5236479A (en) * 1992-06-01 1993-08-17 Precision Cutters, Inc. Cyclone separator
WO1993025326A1 (en) * 1992-06-15 1993-12-23 Derlein Donald A Improved pipe cleaning modules and systems and methods for their use
US5353469A (en) * 1992-07-01 1994-10-11 National Super Service Company Wet/dry vacuum cleaner with noise reducing housing structure
WO1994005195A1 (en) * 1992-08-31 1994-03-17 Container Products Corporation Self-contained cleaning and retrieval apparatus
US5287589A (en) * 1992-08-31 1994-02-22 Container Products Corp. Self-contained cleaning and retrieval apparatus
US5425188A (en) * 1993-02-27 1995-06-20 Vmb Vesta Maschinenbau Gmbh Co. Kg Suction excavator
US5815881A (en) * 1993-10-22 1998-10-06 Sjoegreen; Joergen Universal vacuum cleaner
US5409512A (en) * 1993-11-10 1995-04-25 Commerical Sweeper Systems, Inc. Air filtration system
US5616156A (en) * 1994-04-11 1997-04-01 Marc Keersmaekers Device for the cleansing of the flue gases from waste incineration installations
US5840102A (en) * 1996-04-01 1998-11-24 Mccracken; Hilton G. Mobile pneumatic material transfer machine
US5946767A (en) * 1998-04-02 1999-09-07 Gapvax, Inc. Pipe cleaning vehicle
US6013138A (en) * 1998-04-02 2000-01-11 Gapvax, Inc. Method for cleaning a pipe with a vehicle
US6428590B1 (en) * 2000-01-03 2002-08-06 Tennant Company Filter system for mobile debris collection machine
US6569217B1 (en) * 2000-05-10 2003-05-27 Thomas M. DeMarco Industrial dust collector with multiple filter compartments
US6764604B1 (en) 2002-02-14 2004-07-20 Nezat, Ii Malvin A. Sewer line pumping system
US7156889B1 (en) 2003-07-15 2007-01-02 Astec, Inc. Assembly for removing dust from gas stream
US7987613B2 (en) 2004-10-12 2011-08-02 Great River Energy Control system for particulate material drying apparatus and process
US8651282B2 (en) 2004-10-12 2014-02-18 Great River Energy Apparatus and method of separating and concentrating organic and/or non-organic material
US8579999B2 (en) 2004-10-12 2013-11-12 Great River Energy Method of enhancing the quality of high-moisture materials using system heat sources
US8523963B2 (en) 2004-10-12 2013-09-03 Great River Energy Apparatus for heat treatment of particulate materials
US8062410B2 (en) 2004-10-12 2011-11-22 Great River Energy Apparatus and method of enhancing the quality of high-moisture materials and separating and concentrating organic and/or non-organic material contained therein
US7540384B2 (en) * 2004-10-12 2009-06-02 Great River Energy Apparatus and method of separating and concentrating organic and/or non-organic material
US20060081503A1 (en) * 2004-10-19 2006-04-20 Wegner Paul C Method and system for separating particulate matter
US7413084B2 (en) * 2004-10-19 2008-08-19 Wegner Paul C Method and system for separating particulate matter
US10443210B2 (en) * 2004-10-22 2019-10-15 Mclaughlin Group, Inc. Digging and backfill apparatus
US20060179603A1 (en) * 2005-02-14 2006-08-17 Polston Henry B Apparatus for cleaning pipes having pumping and vacuuming capability
US10954661B2 (en) 2005-02-14 2021-03-23 U.S. Submergent Technologies, Llc Apparatus for cleaning pipes having pumping and vacuuming capability
US11041287B2 (en) 2006-10-06 2021-06-22 Vermeer Manufacturing Company Collection tank
US10563375B2 (en) 2006-10-06 2020-02-18 Mclaughlin Group, Inc. Collection tank
US10337167B2 (en) * 2006-10-06 2019-07-02 Mclaughlin Group, Inc. Collection tank
US20200181875A1 (en) * 2006-10-06 2020-06-11 Mclaughlin Group, Inc. Collection tank
US10844575B2 (en) * 2006-10-06 2020-11-24 Mclaughlin Group, Inc. Collection tank
US20080092734A1 (en) * 2006-10-07 2008-04-24 Tbw Industries Inc. Vacuum line clean-out separator system
US7909910B2 (en) * 2006-10-07 2011-03-22 Tbw Industries Inc. Vacuum line clean-out separator system
US20080271420A1 (en) * 2007-03-07 2008-11-06 Richard William Wellens Cyclonic Filter For Surface Maintenance Machine
US7662199B2 (en) * 2007-03-07 2010-02-16 Tennant Company Cyclonic filter for surface maintenance machine
US8783465B2 (en) * 2011-03-30 2014-07-22 Bayer Materialscience Ag Mobile classifier
US20120248012A1 (en) * 2011-03-30 2012-10-04 Bayer Materialscience Ag Mobile classifier
US9611636B2 (en) * 2013-01-11 2017-04-04 Super Products Llc Mobile water reclaiming system
US10087613B2 (en) 2013-01-11 2018-10-02 Super Products Llc Mobile water reclaiming system
US20140196246A1 (en) * 2013-01-11 2014-07-17 Super Products Llc Mobile water reclaiming system
US20180119375A1 (en) * 2015-04-16 2018-05-03 Reschwitzer Saugbagger Produktions Gmbh Suction excavator with flow reversal and method for controlling same
US10640938B2 (en) * 2015-04-16 2020-05-05 Reschwitzer Saugbagger Produktions Gmbh Suction excavator with flow reversal and method for controlling same
USD813474S1 (en) * 2015-10-26 2018-03-20 Katch Kan Holdings Ltd. Washing apparatus
CN105586848A (zh) * 2016-03-04 2016-05-18 武汉理工大学 扫路车卸灰真空控尘装置
US20200123736A1 (en) * 2017-04-24 2020-04-23 Rsp Gmbh Suction dredger having a swiveling filter unit
US11643790B2 (en) * 2017-04-24 2023-05-09 Rsp Gmbh Suction dredger having a swiveling filter unit
CN107313383B (zh) * 2017-06-10 2019-04-12 山西意启创电子科技有限公司 一种用于杨絮清理收集的装置及其方法
CN107313383A (zh) * 2017-06-10 2017-11-03 李子木 一种用于杨絮清理收集的装置及其方法
US10898845B2 (en) * 2017-07-31 2021-01-26 Fanca Technologies Pty Ltd. Mobile dust extraction device
US20190030476A1 (en) * 2017-07-31 2019-01-31 Filblast Pty Ltd Mobile dust extraction device
US20190150683A1 (en) * 2017-11-22 2019-05-23 Guido Valentini Vacuum Cleaner
US10959583B2 (en) * 2017-11-22 2021-03-30 Guido Valentini Vacuum cleaner
US11801785B2 (en) 2020-06-17 2023-10-31 Vermeer Manufacturing Company Vacuum excavator tank and door system
US12151602B2 (en) 2020-06-17 2024-11-26 Vermeer Manufacturing Company Vacuum excavator tank and door system
US20220287537A1 (en) * 2021-03-11 2022-09-15 Chengdu Quanjing Intelligent Technology Co., Ltd. Base station and cleaning equipment
US12171385B2 (en) * 2021-03-11 2024-12-24 Chengdu Quanjing Intelligent Technology Co., Ltd. Base station and cleaning equipment
US20240260804A1 (en) * 2021-05-24 2024-08-08 Liang Cai Change-over valve and vacuum cleaner
US12295541B2 (en) * 2021-05-24 2025-05-13 Liang Cai Change-over valve and vacuum cleaner
US11839892B2 (en) 2021-06-09 2023-12-12 Russell R. Gohl Cavity cleaning and coating system
US12343746B2 (en) 2021-06-09 2025-07-01 Russell R. Gohl Cavity cleaning and coating system
US11535321B1 (en) * 2022-08-24 2022-12-27 Russell R. Gohl Trailer system

Also Published As

Publication number Publication date
JPS5442751B2 (enrdf_load_stackoverflow) 1979-12-15
JPS5442184B2 (enrdf_load_stackoverflow) 1979-12-12
JPS50141165A (enrdf_load_stackoverflow) 1975-11-13
JPS5493516A (en) 1979-07-24
CA1007814A (en) 1977-04-05

Similar Documents

Publication Publication Date Title
US3842461A (en) Industrial vacuum apparatus
US6344064B1 (en) Method and apparatus of particle transfer in multi-stage particle separators
US4599016A (en) Cyclone apparatus for pneumatically moving granular matter
US6221134B1 (en) Apparatus and method for separating particles from a cyclonic fluid flow
US7550021B2 (en) Portable cyclonic dust collection system
US6228260B1 (en) Apparatus for separating particles from a cyclonic fluid flow
US4894881A (en) Wet/dry vacuum machine
US6231645B1 (en) Apparatus and method for separating particles from a cyclonic fluid flow utilizing a movable access member associated with a cyclonic separator
US6742219B2 (en) Air sweeping apparatus
US3662886A (en) Handling apparatus for particulate dry product
US4490162A (en) Low pressure HEPA filtration system for particulate matter
US5189753A (en) Automobile vacuum cleaner
MX2007014937A (es) Aparato de separacion ciclonica de sucio y polvo.
CA2062138C (en) Single mode wet and dry vacuum vehicle
US4183116A (en) Wet-dry vacuum sweeper
CN101244356B (zh) 一种组合净化方法及装置
CN110449360A (zh) 一种环保除尘风选机
US20140352268A1 (en) Cyclonic particulate collection device
CN201950028U (zh) 原料除杂进仓系统
CN220589420U (zh) 一种矿石集料粉尘吸收装置
JPH0274709A (ja) 真空式路面清掃車
US20220401968A1 (en) Multicyclone separator
CN213912729U (zh) 一种不易堵塞的旋风分离器
JPH01254270A (ja) 粉体回収装置
RU2115484C1 (ru) Циклон

Legal Events

Date Code Title Description
AS Assignment

Owner name: CARYLON CORPORATION, THE, 1000 SOUTHWESTERN AVE.CH

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:CHEMICAL BANK;REEL/FRAME:003887/0134

Effective date: 19810611