TRACTOR MOUNTED PAVEMENT WASHER
First Claim
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1. A pavement cleaning machine comprising in combination:
- a. a vehicle;
b. a first set of spray nozzles extending transversely across the front of said vehicle and connected to a source of pavement treating solution and mounted on said vehicle in an array shaped to direct said solution at said pavement in a first pattern ahead of said vehicle as said vehicle travels; and
c. a second set of spray nozzles extending transversely across said vehicle and connected to a source of water and mounted on said vehicle in an array shaped to direct said water at said pavement in a second pattern spaced in non-overlapping relationship behind said first pattern and being aimed forward and toward the ground to sweep the pavement with water for rinsing said solution from the pavement, said first and second sets of nozzles being operated at the same time.
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Abstract
Disclosed is a pavement washer having two sets of spray nozzles mounted on the front of a small tractor. Nozzles of the first set are aimed ahead substantially horizontally to throw a pattern of cleaning solution well ahead of the tractor, while the second set of nozzles are aimed sharply downward as well as forward to spray a pattern of water ahead of the tractor but behind the cleaning solution. Also disclosed is an arrangement for connecting the tractor to a stationary source of water through a hose wherein provision is made to shut off the ignition of the tractor before the hose is pulled taut.
113 Citations
15 Claims
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1. A pavement cleaning machine comprising in combination:
- a. a vehicle;
b. a first set of spray nozzles extending transversely across the front of said vehicle and connected to a source of pavement treating solution and mounted on said vehicle in an array shaped to direct said solution at said pavement in a first pattern ahead of said vehicle as said vehicle travels; and
c. a second set of spray nozzles extending transversely across said vehicle and connected to a source of water and mounted on said vehicle in an array shaped to direct said water at said pavement in a second pattern spaced in non-overlapping relationship behind said first pattern and being aimed forward and toward the ground to sweep the pavement with water for rinsing said solution from the pavement, said first and second sets of nozzles being operated at the same time.
- a. a vehicle;
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2. A pavement cleaning machine in accordance with claim 1 and further characterized by the second pattern being wider than the first pattern and being inwardly aimed at its ends into an arcuate shape so as to confine said solution to the pavement covered by said second pattern during the travel of said vehicle.
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3. A pavement cleaning machine in accordance with claim 1 wherein at least one of said first and second set of spray nozzles is carried on a manifold comprised of two pipes removably extending in opposite directions from a common threaded pipe coupling.
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4. A pavement cleaning machine comprising in combination:
- a. a self-powered vehicle;
b. a first set of spray nozzles connected to a source of pavement treating solution and mounted on said vehicle in an array shaped to direct said solution at said pavement in a first pattern;
c. a second set of spray nozzles connected to a source of water and mounted on said vehicle in an array shaped to direct said water at said pavement in a second pattern spaced in non-overlapping relationship with said first pattern for rinsing said solution from the pavement;
d. a hose for supplying water to said second set of nozzles from said source of water;
e. a tension spring connecting portions of said hose so as to form a loop therein; and
f. sensing means connected across the neck of said loop and electrically connected to disable said vehicle when said tension spring has been stretched to a predetermined length.
- a. a self-powered vehicle;
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5. A pavement cleaning machine comprising in combination:
- a. a self-powered vehicle;
b. a first set of spray nozzles connected to a source of pavement treating solution and mounted on said vehicle in an array shaped to direct said solution at said pavement in a first pattern;
c. a second set of spray nozzles connected to a source of water and mounted on said vehicle in an array shaped to direct said water at said pavement in a second pattern spaced in non-overlapping relationship with said first pattern for rinsing said solution from the pavement;
d. a pipe assembly rotatably mounted upon the rear of said vehicle in a pipe coupling member, said pipe assembly having a horizontally extending portion swiveling in a horizontal plane about a verticle axis defined by said pipe coupling member;
e. means for connecting said pipe coupling member to said second set of nozzles; and
f. a hose connected between said horizontally extending portion and said source of water.
- a. a self-powered vehicle;
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6. A pavement cleaning machine comprising in combination:
- a. a vehicle;
b. a tank mounted on said vehicle for holding a pavement cleaning chemical;
c. means on said vehicle for connecting to a source of water;
d. an injector having a first inlet connected to receive chemical from said tank, a second inlet connected to receive water from said source and an outlet for dispensing a solution of said chemical and said water;
e. a first set of spray nozzles connected to receive said solution from said injector outlet and mounted on the front of said vehicle in an array shaped to direct said solution at said pavement in a first pattern; and
f. a second set of spray nozzles connected to receive water from said source and mounted on the front of said vehicle in an array shaped to direct water at said pavement in non-overlapping relation with said first pattern for rinsing said solution from the pavement.
- a. a vehicle;
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7. A pavement cleaning machine in accordance with claim 6 wherein said means for connecting to a source of water includes a pump on the vehicle for increasing the water pressure.
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8. A pavement cleaning machine in accordance with claim 6 wherein said vehicle includes a seat and controls for operation by an operator positioned on the seat.
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9. A pavement cleaning machine in accordance with claim 6 wherein said tank is non-pressurized and vented to the atmosphere.
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10. A pavement cleaning machine in accordance with claim 6 and further characterized in that said first and second set of nozzles are respectively supported by upper and lower manifolds rigidly mounted transversely across the front of said vehicle, said first set of nozzles being aimed a substantial distance ahead of said machine, and said second set of nozzles being aimed toward the pavement closely in front of the machine.
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11. A pavement cleaning machine in accordance with claim 10 wherein said second set of nozzles are spaced so as to produce a single continuous spray pattern extending across the front of the vehicle.
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12. A pavement cleaning machine in accordance with claim 11, wherein said second manifold has ends which extend past the ends of said first manifold and extend forwardly with the end nozzles on the second manifold directed toward the central part of the water spray pattern to confine said solution.
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13. For spraying a cleaning solution and water onto a pavement from a self-powered vehicle, a spray head assembly comprising in combination:
- a. first and second sets of spray nozzles mounted on a common framework;
b. means for attaching said framework to the front of said vehicle, said first and second sets of spray nozzles being respectively aimed to deposit said solution and water in a first and a second pattern in front of said vehicle when the framework is so attached, said first pattern being non-overlapping spaced from said second pattern;
c. said first and second sets of nozzles being respectively supported by first and second spray bars extending transversely across the front of said vehicle, the first spray bar being mounted above the second spray bar, with its nozzles aimed substantially horizontally forward so as to deposit a ribbon of said solution ahead of said vehicle as said vehicle travels and the nozzles of the second set being aimed forward and toward the ground to sweep said pavement with water.
- a. first and second sets of spray nozzles mounted on a common framework;
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14. A spray head assembly in accordance with claim 13 and characterized further in that said second spray bar is longer than said first spray bar, and has a nozzle at each of its ends which extend forward so as to produce an arcuate spray pattern which sweeps the edges of said ribbon of solution toward each other.
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15. A spray head assembly in accordance with claim 13 and characterized further in that each of said spray bars is comprised of two symmetrical sections threaded at one end and removably fitted into opposite sides of a common coupling.
Specification