US 3613915 A
Description (OCR text may contain errors)
2,525,372 10/1950 Riddell Sttes Patent Inventor Lawrence Vita 1521 S.W. 21st St., Fort Lauderdale, Fla. 33314 Appl. No. 874,928
Filed Nov. 7, 1969 Patented Oct. 19, 1971 GARBAGE COLLECTION SYSTEM 1 1 Claims, 7 Drawing Figs.
Int. Cl B65g 67/20 Field of Search 2 l 4/8328, 302, 310, 41, 83.26; 302/53; 15/340; 232/1 References Cited UNITED STATES PATENTS 2,613,004 10/1952 214/83.26 X 2,803,847 8/1957 214/83.28 X 3,052,908 9/1962 214/83.28 X 3,294,265 12/1966 Roch et al 214/310 Primary Examiner-Robert G. Sheridan Attorney-Edward F. Levy ABSTRACT: A mechanized garbage collection system comprises a sunken ground receptacle for storing garbage and a truck-mounted installation for extracting the accumulated garbage therefrom and conveying the same to the truck storage tank for eventual disposal at the dump. The truckmounted installation includes a garbage intake pipe which is connected to the mouth of the sunken receptacle and means for applying a vornado-type airblast at the bottom of the sunken receptacle to drive the garbage out of the receptacle, through the intake pipe and thence into the truck storage tank.
PATE NTEDum 19 I97! 3,613,231 5 INVENTOR.
47'TORIVG) PAIENTEnum 19 m1 3,613,915
saw 2 OF 2 INVENTOR, L4 W12 ENCE TA AT TOR V5 GARBAGE COLLECTION SYSTEM The present invention relates to garbage collection systems and more particularly a mechanized system for collecting garbage from a plurality of garbage storage locations.
Presently, city dwellers deposit their garbage in metal or plastic cans which when filled are set out at the street curb on the day of the scheduled collection by the municipal sanitation men. In most cases, the filled garbage cans remain at the curbside for several hours before the cans are actually emptied by the garbage collectors. As a result, due to faulty closure of the garbage can lids, coupled with the action of the wind and/or pets or children, the filled cans become upset resulting in spillage of garbage onto the street and often loss of the can covers. Furthennore, the garbage cans themselves become dented or otherwise damaged due to abusive treatment at the hands of collectors.
When conventional garbage cans are upset as described above, the spilled garbage provides an excellent feeding ground for flies, bugs, rats and other rodents, creating a serious health hazard. In addition, the cans are often exposed to the sun and heat thereby causing the garbage to decay and produce offensive odors. Many conventional garbage cans are made of light gauge metal which tends to rust out at the bottom.
Since virtually all municipalities, for obvious reasons, prohibit the setting out of garbage cans at the street curb before the scheduled day for collection, garbage is accumulated for several days before being disposed of, thus necessitating the use of a relatively large garbage can for storage. Accordingly, the garbage cans, when filled, are too heavy to be handled and transported to the street curb by most persons, particularly housewives, who must therefore seek assistance for such chores. Furthermore, in conventional manual garbage removal operations, at least two collectors, in addition to a driver, are required to empty the garbage receptacle onto the garbage collection truck.
It is therefore an object of the present invention to provide an improved, mechanized garbage collection system which eliminates the use of conventional metal and plastic garbage cans and the sanitary problems inherent therein.
Another object of the present invention is the provision of an improved garbage collection system in which a large concrete container is buried in front of each home adjacent the curb for ready access by a collection truck having a garbage intake pipe attachable to the mouth of the container and a pressurized air generator for blowing accumulated garbage out of the container through the intake pipe and into the truck.
Another object of the invention is the provision of a garbage collection system of the character described in which the buried container is made of a volume at least six times greater than that of a conventional garbage can so that garbage collections may be made fewer, decreasing the cost thereof. The buried containers are also vermin proof and odor proof, yet easily accessible for the deposition of garbage therein.
A further object of the invention is the provision of a garbage collection system of the character described in which the garbage collection truck is constructed to cooperate with the buried container so as to empty the latter of accumulated garbage in a matter of seconds, and at the same time to inject a disinfectant into the container for eliminating odors or bacteria formation therein.
A further object of the invention is to provide a garbage collection system of the character described in which a typical garbage collection route can be quickly and conveniently handled by one driver and a single collector rather than requiring the six men who usually accompany a garbage truck, thereby further decreasing the cost of garbage collection.
In accordance with the principles of the present invention, there is provided a mechanized garbage collection system comprising a ground-installed garbage receptacle for accumulating garbage, and truck-mounted garbage conduit means adaptable to be connected at one end thereof to the garbage receptacle and at the other end thereof to truck-mounted garbage storage means. There is further provided means for propelling the accumulated garbage from the receptacle through the conduit means and into the truck-mounted garbage storage means.
Additional objects and advantages of the present invention will become apparent during the course of the following specifications when taken in connection with the accompanying drawings, in which:
FIG. 1 is a side elevational view of a motor truck mounting garbage intake equipment in accordance with the principles of the present invention, wherein the intake pipe is shown in the inoperative retracted position;
FIG. 2 is a top plan view of the motor truck of FIG. 1 showing the intake pipe in an extended operative position in communication with the roadside sump containing garbage for removal;
FIG. 3 is a rear elevational view of the motor truck in the position shown in FIG. 2, with the sump broken away and shown in section to illustrate the vornado airflow by which garbage is propelled upwardly from the sump into the intake pipe;
FIG. 4 is an enlarged elevational view of the portion of the sump of FIG. 3 which protrudes above the ground line;
FIG. 5 is a top plan view of a broken-away portion of the top of the motor truck, showing schematically the various degrees of movement of the intake pipe in relation to the sump;
FIG. 6 is an enlarged section taken along line 6-6 of FIG.
FIG. 7 is a side elevational view of the intake pipe of FIGS. 5 and 6, showing in schematic section the mounting for said pipe and the manner in which the pipe may be tilted to assure proper connection to the sump.
Referring in detail to the drawings, and in particular to FIGS. 1-3 thereof, there is shown a mechanized garbage disposal system made in accordance with the present invention and including a motor truck 10 mounting garbage intake equipment and a curbside ground installation comprising a sump 12 from which accumulated garbage is to be removed.
The aforementioned garbage intake equipment comprises garbage storage tank 14 mounted on truck 10 and sized to receive stored garbage collected from a considerable number of sumps such as the sump 12, for transport to a dump. The truck-mounted garbage intake equipment also includes a cylindrical garbage intake pipe 16 which communicates with the interior of the storage tank 14. Intake pipe 16 comprises an elongated horizontal section 16a which tenninates at one end thereof in a short vertical inboard section 16b extending downwardly into and communicating with the interior of storage tank 14. The other end of the horizontal section 16a terminates in a vertical, depending pipe section which has an open bottom end adapted to be secured to the mouth of sump 12 in communication therewith, as hereinafter described in greater detail.
The intake pipe 16 is supported on the truck 10 by an overhead extension boom 18 which is mounted on the top wall 14a of storage tank 14 at the forward end portion of said top wall 14a adjacent the rear of the truck cab 20. Operation of the extension boom 18 is controlled by an elevation jack 22, a tilt jack 24 and an extension jack 26, for selectively moving pipe 16 between a retracted position shown in FIG. I and various extended positions in which the pipe 16 can be coupled to sumps 12, for example the extended position illustrated in FIGS. 2 and 3. Jacks 22, 24 and 26 which may be of pneumatic, hydraulic, or other conventional type, are driven by power supplied by the truck engine and are selectively actuated by pushbutton control panel 25 mounted on the vertical section 16c of intake pipe 16.
Boom 18 is supported by a heavy base bracket 28 of angular shape having an upright wall 28a fixedly secured to the top wall 14a of garbage storage tank 14 and a horizontal wall 28b extending perpendicularly rearwardly from the upper end of wall 280. As shown in FIG. 2, the horizontal wall 28b is of triangular shape, and the elevation jack 22 is mounted at the rear or apex end thereof. The elevation jack 22 comprises a piston 30 secured to and upstanding from base wall 28b, and a cylinder 32 which is vertically movable relative to the fixed piston 30 and is also rotatable thereon.
The extensible boom 18 comprises a hollow inboard arm 34, preferably of square cross section as shown, in which an outboard arm 35 is slidably received for telescopic movement. The inboard boom arm 34 is pivotally mounted at one end on the cylinder 32 by means of end yokes 36 which rotatably receive mounting pins 38 projecting from opposite sides of cylinder 32.
The tilt or luffing jack 24 includes a cylinder 40 mounted at one end thereof on the upper end of cylinder 32 by means of lug 42, and a piston rod 44 pivotally connected to a lug 46 on the top of boom arm 34 adjacent the yoke end of the latter. Thus, boom 18 will pivot in the vertical plane about the axis defined by mounting pins 38 in response to extension and retraction of piston rod 44 in cylinder 40.
Extension jack 26, which is mounted at the free outer end of boom arm 34 is operative to extend and retract the telescopic outboard arm 35 of boom 18. Said extension jack 26 comprises a cylinder 50 mounted on the top surface of arm 34 in longitudinal alignment therewith, and a piston rod 52 having its free end connected to a lug 54 upstanding from the top surface of arm 35.
Intake pipe 16 is suspended from boom 18 by means of hanger members 56 and 58 secured to the undersides of the boom arms 34 and 35 respectively. Hanger member 56 comprises a pair of angularly arranged rigid metal rods 60 and 62 secured at their upper ends to the underside of boom arm 34, at the inboard end portion thereof, by means of spaced lugs 64, and joined at their lower ends to journal a roller 66 which engages and rides within an inverted U-shaped bar support 68 affixed to the top surface of pipe 16. Hanger member 58 comprises a similar pair of metal rods 70 and 72 secured at their upper ends to the outboard end of arm 35 by means of lugs 74, and joined at their lower ends to lug 76 which is fixedly secured to the upper surface ofintake pipe 16.
The top wall 14a of truck storage tank 14 has a circular opening 78 adjacent its forward end which receives the inner vertical section 1612 of pipe 16. In order to allow free movement of pipe 16 in response to the action of elevation jack 22, tilt jack 24 and extension jack 26, the opening 78 is considerably larger in diameter than the outer diameter of pipe section 16b. In the retracted position of the pipe 16 shown in FIGS. 1 and 2, the pipe section 16b extends centrally and concentrically through opening 78 and there is sufficient circumferential spacing between the pipe and the opening to permit lateral movement of the pipe in any direction. An annular metal screen 80 of appreciably larger diameter than the tank opening 78 rests upon the tank top wall 14a and overlies opening 78. The pipe section 16b extends loosely and slidably through the central opening 80a of said screen 80 so that the screen 80 remains in place over said opening while permitting the pipe 16 to be raised, lowered, tilted or rotated. When the pipe section 16b is moved laterally in the opening 78, the screen 80 follows this movement but is of sufficient diameter to maintain the opening covered. The screen 80 allows the exhaust of air therethrough from the interior of storage tank 14 for reasons which will become apparent, while preventing the escape of garbage from the tank interior as a result of air turbulence therein.
Referring now to the curbside ground installation portion of the garbage collection system, reference is made to FIGS. 2 and 3 showing a sunken concrete sump 12 which may typically be located in the area fronting a residence within several feet of the street curb 82. Sump 12 is preferable of cylindrical shape, being typically about 8 feet high and about 3 feet in diameter. The major body portion of sump 12 is installed sunken in the ground, as shown in FIG. 3, so as to protrude about 2 feet above ground 83. Sump 12 has a sidewall 120 which terminates at its open upper end into a neck portion 12a of reduced wall thickness, having a perpendicularly projecting terminal peripheral flange or lip 84. The interior bottom wall 12b of sump 12 is concave and is provided with an elliptical air inlet aperture 86 communicating with a cylindrical channel or bore 88 which extends through the sidewall 22c.
As shown in FIG. 6, aperture 86 is located closely adjacent the bottom of sump sidewall 12c and substantially parallel thereto for reason which will soon become apparent. Channel 88 extends upwardly from aperture 86 through sump sidewall 12c and is connected to the lower end of an upstanding ground air pipe 90 which emerges from ground 83 in a direction perpendicular thereto, terminating in a horizontal connecting portion 900.
Sump 12 is provided with a removable dish-shaped metal cover 92 having a depending peripheral skirt 94, and suitably dimensioned so that when cover 92 is closed over sump 12, the lip 84 of sump sidewall 12c will be slidably and snugly received within the inner surface of cover skirt 94. The cover 92 has a central circular opening 96 which is normally closed by a small lid 98 pivotally connected to the periphery thereof by a hinge 99. The lid 98 is made of lightweight metal so that it can be easily opened by a housewife or other user for deposition of bags of garbage or emptying of indoor garbage containers through opening 96 into the interior of sump 12.
Referring again to FIGS. 1-3, the truckbome installation also includes a cylindrical air tank 100 containing compressed air and fed by an air compressor unit 101. A flexible hose 102 is connected to the air tank 100 by means of a butterfly valve 104 of the quick-open type which provides an instantaneous blast of air under high pressure from compressed air tank 100 through hose 102. The free end of flexible hose 102 terminates in a female coupling connector 106 adaptable for rapid and airtight mating action with the corresponding male coupling connector 108 at the free end of air pipe 90. Air tank 100 may be mounted horizontally on the side of the truck chassis, as shown in FIG. 1, with airhose 102 mounted in its storage position horizontally above air tank 100 by means of support brackets 110. At the bottom of vertical section 166, the mouth of intake pipe 16 is provided with air annular gasket 112 and a plurality of clamps 114 for ensuring an airtight engagement of said pipe mouth with the mouth of sump 12, as hereinafter described. There is further provided a tank 116 storing disinfectant fluid and a hose 118 leading from tank 116 through the wall of pipe section 16c adjacent the mouth end thereof, of said pipe section 160.
In a typical installation, one or more of the residences on a street are provided with a sunken sump which is located at curbside and which may be colored to blend with the shrubbery so as to present an attractive appearance. On a garbage collection day, a garbage truck 20, carrying the mobile equipment shown in FIGS. 1-3, is driven up on the roadway 120 and parked next to the curb 82 adjacent the sump 12 of one of the residences. In the retracted position of the mobile equipment shown in FIG. 1, the pipe horizontal section 16a extends parallel to and closely above the top wall 14a of tank 14 while the vertical section extends downwardly along and closely adjacent to the rear wall of tank 14. The mouth end of pipe section 160 is located a short distance above the ground. The pipe section 16b is centrally located within the tank inlet opening 78.
The collector accompanying the truck 20 first removes the entire cover 92 from the sump and then walks to the rear of the truck, grasping a handle 122 on pipe section 16c, and manually operating the control panel 25 which is mounted immediately above said handle. As previously indicated, the control panel 25 includes a plurality of pushbuttons which are individually connected to the jacks 24, 25 and 26 for selective operation thereof in reverse directions.
By grasping handle 122, the operator pulls the pipe 16 manually in a circular path toward the adjacent curb, the arcuate path of movement being indicated by arrow 124 in FIG. 5. This arcuate movement is effected by the boom 18, which suspends pipe 16, the jack cylinder 32, mounting boom 18, turning about piston 30. The vertical section 16b of pipe 16 thus rotates about its axis within tank inlet opening 78. If necessary, the collector presses the appropriate button on panel to cause the elevation jack 22 to operate to raise the pipe 16 sufficiently for the end thereof to clear the curb and the top of sump 12. As the end of pipe 16 approaches the sump 12, the operator may press the appropriate button on panel 25 to cause extension jack 26 to operate to move the pipe 16 longitudinally as indicated by arrow 126 in FIG. 5, until the mouth end of pipe 16 is in vertical alignment with the mouth ofsump 12.
The operator then presses the button on control panel 25 which controls elevation jack 22, whereby pipe 16 is lowered until pipe gasket 112 is conformably seated upon sump lip 84. It will be understood that in some instances the pipe gasket 112 will not be precisely parallel to the lip 84 but will be slightly askew for various reasons including slope of the road way 120, or uneven pressure in the truck tires 128. To render the pipe gasket 112 parallel to the lip 84, the collector may operate the tilt jack 24 by depressing the appropriate button on control panel 25, thereby causing the boom 18 to pivot about pins 38 and tilting the pipe 16 accordingly. in the event that the angular disposition of the gasket 112 is such that the tilt jack 24 cannot correct the deficiency, the collector may manually tilt pipe 16 to the limited degree permitted by hanger members 56 and 58 by manipulation of the handle 122, thereby adjusting the position of the mouth of pipe 16 until pipe gasket 112 seats flush upon sump lip 84. The operator then presses pipe 16 downwardly against lip 84, so as to compress gasket 112 and permit the clamps 114 to engage the underside of lip 84, as shown in F165. 3 and 4, whereby the pipe 16 is locked in airtight engagement with sump 12. With pipe 16 thus secured, the operator then connects airhose 102 to ground air pipe 91) by coupling connectors 106 and 108 of hose 102 and pipe 90 respectively. The removal of garbage from sump 12 to the interior of garbage tank 14 is now initiated, as follows.
Referring to FIGS. 3 and 6, the operator actuates butterfly valve 1114, thereby releasing a sudden blast of pressurized air from air tank 100 through airhose 1112, air pipe 911 through conduit 88 and into the interior of sump 12 via elliptical base opening $6 in sump 12. As shown in FIG. 6 and indicated above, the major axis of elliptical base opening 86 is substantially parallel to the tangent of the circular periphery of sump base 1212. Accordingly, the airflow into sump 12 develops into an upward spiralling, swirling flow in a vornado action as shown by direction arrow 130. The vornado airflow just described, which travels upward through sump 12 and intake pipe 16 and thence into the interior of tank 14, carries with it the garbage contents in sump 12. The vornado airflow path 130, which is generated by the tangential and downward introduction of air into sump base 12b via conduit 88 and sump inlet aperture 86, provides a maximum scavenging action within sump 12 thereby removing garbage from within sump 12 with a very high degree of efficiency. After applying the above described airblast for a period of time sufficient to remove all the garbage therein, the operator shuts off valve 104, and sprays disinfectant from tank 116 into the interior of sump 12, via hose 118 and through the mouth of pipe 16, in a sanitizing action which eliminates odors and bacteria forming in sump 12. The operator then disengages airhose 102 from air pipe 90 and pipe 16 from sump 12 by releasing clamps 114i, and then replaces sump cover 92.
After completing the above described operation, the operator returns pipe 16 to its stored position as indicated in FIG. 1 by suitably manipulating the pushbuttons on control panel 25, and replaces airhose 102 on hose brackets 111), after which the operator proceeds to the next ground sump installation to repeat the above-described garbage removal operation.
It is evident from the above description of a preferred embodiment that the mechanized garbage removal system of the present invention provides a highly efficient, rapid, clean and convenient method of collecting garbage from a plurality of ground storage containers. Thus, the system of the present invention is aesthetically more pleasing than the conventional system wherein individual garbage cans stand at curbside in front of each house on the street. Furthermore, concrete sump 12 may be made much larger than the conventional garbage receptacles because it is substantially buried in the ground, and concrete sump 12 will have a much longer useful life than the conventional garbage receptacles. As indicated, the above-described garbage removal operation requires the services of only one operator who does not have to lift any heavy weights such as conventional loaded garbage cans, thus making possible a substantial saving in labor costs. Further, the garbage removal operation of the present invention requires only several seconds for the airblast to empty sump 12 of all its garbage contents, thus effecting further savings in labor and operating costs.
While a preferred embodiment of the invention has been shown and described herein, it is obvious that numerous omissions, changes and additions may be made in such embodiment without departing from the spirit and scope of the invention.
What is claimed is:
1. A garbage collection system comprising a ground-installed garbage receptacle for storing accumulated garbage, and a truck-mounted garbage collection assembly for removing accumulated garbage from said ground-installed receptacle and transporting it to a remote location, said truckmounted garbage collection assembly comprising garbage conduit means adapted to be connected at one end to said garbage receptacle in communication with the interior of the latter, a garbage storage container in communication with the other end of said garbage conduit means, and means for propelling said accumulated garbage from the interior of said receptacle through said conduit means and into the interior of said truck-mounted garbage storage container, said propelling means comprising a truck-mounted source of air under pressure and means for selectively applying a high-velocity stream of air from said source into the interior of said garbage receptacle, at such a location therein that said airstream travels upward through the interior of said receptacle, and through said conduit means, carrying the accumulated garbage content of said receptacle with it.
2. A garbage collection system according to claim 1 in which said garbage receptacle comprises a container buried in the ground with the upper end thereof projecting above ground level for connection to said garbage conduit means.
3. A garbage collection system according to claim 2 in which said garbage receptacle has an air inlet opening at the base thereof below ground level, and in which said airstream applying means includes a pipe communicating at one end with said air inlet opening and extending upwardly through the ground, the other end of said pipe extending above ground level proximate to said garbage receptacle.
4. A garbage collection system according to claim 2 in which said garbage receptacle container has a removable cover and an access lid pivotally mounted on said cover.
5. A garbage collection system according to claim 3 wherein said garbage receptacle container is substantially cylindrical and has a concave base wall.
6. A garbage collection system according to claim 5 wherein said receptacle air inlet opening is located in said receptacle base offset from the center thereof, whereby a flow of air under pressure introduced into said receptacle via said air inlet opening will produce a swirling upwardly spiralling vornado airflow.
7. A garbage collection system according to claim 6 wherein said air inlet opening is substantially elliptical and is substantially perpendicular to the radius of said receptacle base, whereby the airflow introduced via said inlet opening is substantially tangential to the circular wall of said cylindrical receptacle container.
8. A garbage collection system according to claim 1 in which said garbage storage container comprises a truckmounted tank having a volume appreciably greater than the volume of said ground-installed garbage receptacle, and having a top wall and a garbage inlet opening in said top wall, and in which said garbage conduit means comprises an intake pipe of large diameter having an elongated horizontal section overlying the top wall of said tank, a first vertical section at one end thereof extending through said garbage inlet opening into the interior of said tank, and a second vertical section at the other end thereof, said intake pipe having a retracted, inoperative position in which said horizontal section is centrally and longitudinally aligned with the top wall of said tank, and said second vertical section extends downwardly along the rear of said tank, said second vertical section terminating in an open mouth.
9. A garbage collection system according to claim 8 in which said tank inlet opening is circular and of substantially greater diameter than the outer diameter of said first vertical pipe section, said first vertical section being laterally movable within said inlet opening in all directions, and an annular screen encircling said first vertical section and overlying said inlet opening, said screen having a diameter larger than the diameter of said inlet opening.
10. A garbage collection system according to claim 9 in which truck-mounted garbage collecting assembly also includes an extensible boom supporting the horizontal section of said pipe, said boom being rotatably mounted above said tank for rotation of said boom and the pipe supported thereby about a vertical axis coinciding with the central longitudinal axis of said first vertical pipe section, first drive means for longitudinally extending said boom, second drive means for tilting said boom in a direction to raise and lower the second vertical pipe section, and third drive means for elevating said boom vertically.
11. A garbage collection system according to claim 10 in which said first, second and third drive means comprise a hydraulic jacks, and in which a control panel is mounted on said second vertical pipe section and is operatively connected with each of said jacks for selective remote operation thereof.