Vehicle for road repair and the like
First Claim
1. Telescoping conveying means for conveying solid matter comprising:
- at least first and second hollow tubular members of different diameters;
said first tubular member having a first end being telescopingly received by and extending into a first end of said second tubular member which is of a larger diameter than said first tubular member;
a collar positioned about an outer periphery of and coupled near the first end of said second tubular member;
guide means mounted to said collar for slidably receiving and guiding said first tubular member;
said guide means arranged a spaced distance from said collar and maintaining a substantially uniform gap space between an outer periphery of said first tubular member and an inner periphery of said second tubular member;
a second end of said first tubular member receiving solid matter urged through said telescoping conveyor means by air under pressure, causing ambient air to enter said gap space through a region between said collar and guide means to keep the gap space free of debris.
2 Assignments
0 Petitions
Accused Products
Abstract
A motor driven wheeled road patching vehicle includes a gravel hopper and a tank of heated asphalt. A gate assembly is adjusted to control gravel flow into a pressurized hose. A telescoping tube assembly extendable between a maximum and a minimum overall length for patching operations and compactness when not in use has debris air gaps to facilitate, by venturi effect, debris clearance. Telescoping elements of increasing diameter are further from the inlet end of the tube assembly to reduce wearing. An elbow couples the telescoping tube outlet to a mixing head, and has a hollow collector box for accumulating gravel which erodes the outside elbow portion, the collected material serving to prevent further wearing. The tank is heated by thermostatically controlled heater elements when not in use and by engine coolant from the truck engine coolant system flowing through a tube near the bottom of the tank. A nozzle, heated by the engine cooling system, mixes molten asphalt and gravel. Baffles in the nozzle and heating tube create a tortuous coolant path, enhancing heat transfer from the nozzle and tube to the molten asphalt. A control panel in the truck cabin is mounted by flexible ducting comprising two or more flexible ducts, each duct of smaller diameter being force-fitted into the next duct so that the O.D. of each duct firmly engages the I.D. of each outer duct providing a superior flexible mount. Electrical conduit and the like extend through the innermost duct.
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Citations
42 Claims
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1. Telescoping conveying means for conveying solid matter comprising:
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at least first and second hollow tubular members of different diameters; said first tubular member having a first end being telescopingly received by and extending into a first end of said second tubular member which is of a larger diameter than said first tubular member; a collar positioned about an outer periphery of and coupled near the first end of said second tubular member; guide means mounted to said collar for slidably receiving and guiding said first tubular member; said guide means arranged a spaced distance from said collar and maintaining a substantially uniform gap space between an outer periphery of said first tubular member and an inner periphery of said second tubular member; a second end of said first tubular member receiving solid matter urged through said telescoping conveyor means by air under pressure, causing ambient air to enter said gap space through a region between said collar and guide means to keep the gap space free of debris. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A mixing head assembly for mixing solid material and liquid material comprising;
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a hollow annular member having an inlet end for receiving said solid material and an outlet end for delivering solid material mixed with said liquid material; a first hollow, annular-shaped enclosure surrounding and contiguous with an intermediate portion of said cylinder member and having an inlet opening for introducing said liquid material into a hollow interior of said first enclosure; a plurality of openings provided in said annular member for introducing liquid material entering said first enclosure into an interior of said cylinder member where it is mixed with said solid material; a second hollow, annular-shaped enclosure surrounding and contiguous with said first enclosure, and having first and second openings for respectively introducing a heated liquid into an interior of said second enclosures and for removing said heated liquid therefrom for heating the liquid material introduced into said first enclosure; and baffle means in said second enclosure disturbing the smooth, flow of liquid through said second enclosure. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. A mixing head assembly for mixing solid material and liquid material comprising:
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a conveying conduit having an inlet for receiving said solid material, an intermediate portion having openings for receiving said liquid material and an outlet for delivering solid material mixed with said liquid material; chamber means surrounding said intermediate portion for delivering liquid material to said openings; heating means surrounding said chamber means for heating the contents of said chamber means; and said heating means receiving a heated liquid and having baffle means for disturbing the smooth flow of heated liquid therethrough.
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33. A mixing head assembly for mixing solid material and liquid material comprising:
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a conveying conduit having an inlet for receiving said solid material, an intermediate portion having openings for receiving said liquid material and an outlet for delivering solid material mixed with said liquid material; chamber means surrounding said intermediate portion for delivering liquid material to said openings; heating means for heating the contents of said chamber means; said heating means receiving a heated liquid and having baffle means for disturbing the smooth flow of heated liquid therethrough; and said heated liquid being delivered from an engine cooling system having a outlet coupled to an inlet in said chamber means and a return coupled to an outlet in said chamber means.
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34. Apparatus for controlling delivery of solid matter comprising:
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a tank for solid matter having an outlet opening; a delivery conduit having an air inlet, an outlet for delivering solid matter and a solid matter inlet intermediate said inlet and outlet; a gate assembly arranged between said tank outlet and hose inlet and having a plate rotatable about a pivot and having a plurality of openings of different sizes; reciprocating means for moving said plate; a plurality of brackets mounted on said plate for selective coupling with said reciprocating means, each bracket being associated with one of said openings whereby an opening associated with the bracket coupled to said reciprocating means selectively controls the flow of solid matter in a passageway arranged between said tank outlet and said delivery conduit solid matter inlet; said reciprocating means being movable between a first and a second position whereby the opening associated with the bracket coupled to said reciprocating means is respectively movable between first and second positions respectively opening and closing said passageway. - View Dependent Claims (35)
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36. Apparatus for heating the contents of a tank mounted upon a vehicle driven by an engine having an engine cooling system employing a liquid coolant circulating through said engine, said apparatus comprising:
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heating means including a hollow conductive tube for coupling with the engine cooling system extending through an interior portion of said tank for separating the flow of a coolant through said tube from the contents of said tank to be heated; means for coupling said tube to said cooling system to enable flow of a coolant circulating through said engine cooling system through said tube and returning to said engine, when said engine is operating; and said tube conducting heat from said coolant to heat the contents of said tank. - View Dependent Claims (37, 38)
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39. Apparatus for heating the contents of a tank mounted upon a vehicle driven by an engine having an engine cooling system employing a liquid coolant circulating through said engine, said apparatus comprising:
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heating means including a hollow conductive tube for coupling with the engine cooling system extending through said tank for separating the flow of a coolant through said tube from the contents of said tank to be heated; means for coupling said tube to said cooling system to enable flow of a coolant in said engine cooling system through said tube, when said engine is operating; and said tube conducting heat from said coolant to heat the contents of said tank; electrical heating means extending into said tube; means for electrically coupling said electrical heating means to a source of electrical energy to selectively heat said electrical heating means when said vehicle engine is not operating. - View Dependent Claims (40, 41)
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42. Apparatus for heating the contents of a tank mounted upon a vehicle driven by an engine having an engine cooling system employing a liquid coolant circulating through said engine, said apparatus comprising:
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heating means including a hollow conductive tube for coupling with the engine cooling system extending through said tank for separating the flow of a coolant through said tube from the contents of said tank to be heated; means for coupling said tube to said cooling system to enable flow of a coolant in said engine cooling system through said tube, when said engine is operating; and said tube conducting heat from said coolant to heat the contents of said tank; a mixing head assembly for mixing solid material and the contents of said tank which comprises a liquid material comprising; a hollow annular member having an inlet end for receiving said solid material and an outlet end for delivering solid material mixed with said liquid material; a first hollow, annular-shaped enclosure surrounding and contiguous with an intermediate portion of said cylinder member and having an inlet opening for introducing said liquid material into a hollow interior of said first enclosure; a plurality of openings provided in said annular member for introducing liquid material entering said first enclosure into an interior of said cylinder member where it is mixed with said solid material; a second hollow, annular-shaped enclosure surrounding and contiguous with said first enclosure, and having first and second openings for respectively introducing a said coolant into an interior of said second enclosure and for removing said coolant therefrom for heating the liquid material introduced into said first enclosure.
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Specification