US3784255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-bag elevated dump vehicle
Assignee: Individual
•
Filing: 1972-09-11
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Granted: 1974-01-08
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Expires: 1992-09-11
Abstract
Abstract A dump vehicle comprising a dump body pivotally mounted on the vehicle chassis frame for movement between a horizontal normal position and an inclined dumping position using an air bag or air bellows assembly as a means of power to raise and lower the dump body. The dump body is so pivoted and the air bellows is so disposed between the body and the chassis frame that maximum lift is obtained with a minimum stroke of the air-bag assembly. The air-bag assembly consists of two or more air bags stacked in endto-end relationship to obtain maximum lift. A stabilizer plate is disposed between the adjacent ends of the two bags and is hinged at the pivot point of the dump body so as to prevent undue lateral displacement of the bag assembly as the bags are expanded into an arcuate body with its axis concentric with the hinged or dump axis.
Inventors
- 👤 E Smock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:56
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/04; B60P1/16; B60P1/165
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
221 words
A dump vehicle comprising a chassis having a frame, a dump body pivoted to said frame at a pivot axis for movement from a normal non-dumping position to an elevated inclined dumping position, and means for moving said body between said positions, said means comprising an air-bag assembly connected between the frame and said dump body at a location spaced from said pivot axis, said assembly comprising air-bags in superimposed end-toend relationship, and means for controlling flow of air to and from said air-bags of the assembly, said body having a dump end, said pivot axis being spaced inwardly of the dump end, and said air-bag assembly being located inwardly of but closely adjacent said pivot axis, said air-bag assembly being supported on the frame in normally upright position with the lower end of the lowermost bag connected to the frame, said dump body having a bottom, said bag assembly having the upper end of its upper bag connected to the bottom, a stabilizer plate connected between adjacent ends of the superimposed bags and pivoted to said frame to control tilting of the air-bag assembly during raising and lowering of the dump body, means for hinging the plate at said pivot axis, said plate being fixed between said adjacent ends of the bags and having a passageway therethrough connecting said ends.
Claim 2
Dependent Claim
221 words
A dump vehicle comprising a chassis having a frame, a dump body pivoted to said frame at a pivot axis for movement from a normal non-dumping position to an elevated inclined dumping position, and means for moving said body between said positions, said means comprising an air-bag assembly connected between the frame and said dump body at a location spaced from said pivot axis, said assembly comprising air-bags in superimposed end-toend relationship, and means for controlling flow of air to and from said air-bags of the assembly, said body having a dump end, said pivot axis being spaced inwardly of the dump end, and said air-bag assembly being located inwardly of but closely adjacent said pivot axis, said air-bag assembly being supported on the frame in normally upright position with the lower end of the lowermost bag connected to the frame, said dump body having a bottom, said bag assembly having the upper end of its upper bag connected to the bottom, a stabilizer plate connected between adjacent ends of the superimposed bags and pivoted to said frame to control tilting of the air-bag assembly during raising and lowering of the dump body, means for hinging the plate at said pivot axis, said plate being fixed between said adjacent ends of the bags and having a passageway therethrough connecting said ends.
Claim 3
Dependent Claim
97 words
A vehicle according to claim 1 in which the chassis frame includes a pair of longitudinally extending parallel support beams, said dump body being disposed transversely of said beams, said pivot axis being provided by a hinge structure connected to the bottom of the dump body adjacent a tailgate discharge end, said hinge structure being supported by one of the beams, said air bag assembly being supported in the space between the beams and being anchored therein, said plate being fixed between said adjacent ends of the bags and being hinged at said dump body hinge axis.
Claim 4
Dependent Claim
25 words
A vehicle according to claim 2 in which the hinge is connected to the dump body at a point spaced inwardly of its discharge end.
Claim 5
Dependent Claim
21 words
A vehicle according to claim 3 in which the dump body is provided with a tailgate having an auxiliary gate thereon.
Claim 6
Dependent Claim
52 words
A vehicle according to claim 3 in which a plurality of the dump bodies are provided at spaced intervals along said beams and are all pivoted thereto for dumping at the same side of the frame, and means for selectively controlling the respective air bag assemblies of the plurality of dump bodies.
Claim 7
Dependent Claim
185 words
A dump vehicle comprising a chassis having a frame, a dump body pivoted to said frame at a pivot axis for movement from a normal non-dumping position to an elevated inclined dumping position, and means for moving said body between said positions, said means comprising an air-bag assembly connected between the frame and said dump body at a location spaced from said pivot axis, said assembly being supported on the frame in normally upright position with the lower end of the lowermost bag connected to the frame, said dump body having a bottom, said bag assembly having the upper end of its upper bag connected to the bottom means for controlling flow of air to and from said air-bags of the assembly, and a rigid stabilizer lever arm connected to the bag assembly and pivoted to said frame at a common axis with said dump body pivot axis so as to confine movement of the air-bags, during expansion to lift the dump body, to an arcuate path so that the axis of the air-bag assembly will be substantially arcuate and concentric with said pivot axis.
Claim 8
Dependent Claim
185 words
A dump vehicle comprising a chassis having a frame, a dump body pivoted to said frame at a pivot axis for movement from a normal non-dumping position to an elevated inclined dumping position, and means for moving said body between said positions, said means comprising an air-bag assembly connected between the frame and said dump body at a location spaced from said pivot axis, said assembly being supported on the frame in normally upright position with the lower end of the lowermost bag connected to the frame, said dump body having a bottom, said bag assembly having the upper end of its upper bag connected to the bottom means for controlling flow of air to and from said air-bags of the assembly, and a rigid stabilizer lever arm connected to the bag assembly and pivoted to said frame at a common axis with said dump body pivot axis so as to confine movement of the air-bags, during expansion to lift the dump body, to an arcuate path so that the axis of the air-bag assembly will be substantially arcuate and concentric with said pivot axis.
Claim 9
Dependent Claim
41 words
A dump vehicle according to claim 6 in which said stabilizer arm is in the form of a plate connected between adjacent ends of the superimposed bags, and means for hinging the plate to said frame aT said common pivot axis.
Claim 10
Dependent Claim
89 words
A vehicle according to claim 7 in which the chassis frame includes a pair of longitudinally extending parallel support beams, said dump body being disposed transversely of said beams, said dump body pivot axis being provided by a hinge structure connected to the bottom of the dump body adjacent a discharge end, said hinge structure for the dump body and the hinging means for the plate being supported co-axially by one of the beams, said air-bag assembly being supported in the space between the beams and being anchored therein.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-07 | 1977-07-09 | 1978-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-07 | 1981-07-09 | 1982-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-07 | 1985-07-09 | 1986-01-08 | $7700.00 | Window Closed / Lapsed |