US4623197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sloped floor dump trailer
Assignee: FLORIG EQUIPMENT COMPANY Inc A PA CORP
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Filing: 1985-08-20
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Granted: 1986-11-18
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Expires: 2005-08-20
Abstract
Abstract A sloped floor trailer which incorporates drain ports which are opened during trailer loading and which are sealed during trailer transportation, in order to retain the liquid. In addition to the foregoing features, I provide apparatus for heating the trailer side walls with the truck tractor exhaust to prevent freezing during inclement weather.
Inventors
- 👤 Eugene F. Stluka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:39
CPC Classifications
G; G21; G21F; G21F5/00; G21F5/002; B; B60; B60K; B60K13/00; B60K13/06; B60P; B60P1/00; B60P1/04; B60P1/28; B61; B61D; B61D9/00; B61D9/04; B61D9/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
216 words
An improved tow trailer having ground engaging support means and a trailer body for hauling and dumping liquid containing residue, wherein the trailer provides hoist elevation means for raising one end of the body for dumping said body, the improvement comprising: (a) main chassis rails which slope from the respective ends of the trailer toward a common vertical axis; (b) body rails resting on said chassis rails and sloping from the respective ends of said trailer toward said vertical axis; (c) a plurality of floor support means, positioned adjacent to said body rails, for providing a support plane which slopes from the respective ends toward said vertical axis; (d) a floor mounted on said plurality of support means and sloping from said respective ends towards said vertical axis; (e) vertical walls mounted about the perimeter of said floor on both sides and one end thereof; (f) a dump gate pivotally supported by said side walls and positioned at the other end thereof; and (g) an elevated floor portion positioned adjacent to said dump gate and sloping from the sealing point of said dump gate toward said common vertical axis; and (h) at least one closable drain port positioned at said vertical axis in a side wall adjacent to and at the lowest point of said floor.
Claim 2
Dependent Claim
216 words
An improved tow trailer having ground engaging support means and a trailer body for hauling and dumping liquid containing residue, wherein the trailer provides hoist elevation means for raising one end of the body for dumping said body, the improvement comprising: (a) main chassis rails which slope from the respective ends of the trailer toward a common vertical axis; (b) body rails resting on said chassis rails and sloping from the respective ends of said trailer toward said vertical axis; (c) a plurality of floor support means, positioned adjacent to said body rails, for providing a support plane which slopes from the respective ends toward said vertical axis; (d) a floor mounted on said plurality of support means and sloping from said respective ends towards said vertical axis; (e) vertical walls mounted about the perimeter of said floor on both sides and one end thereof; (f) a dump gate pivotally supported by said side walls and positioned at the other end thereof; and (g) an elevated floor portion positioned adjacent to said dump gate and sloping from the sealing point of said dump gate toward said common vertical axis; and (h) at least one closable drain port positioned at said vertical axis in a side wall adjacent to and at the lowest point of said floor.
Claim 3
Dependent Claim
38 words
The trailer of claim 1, wherein said floor support means comprises support beams extending between said body rails, said beam ends being uniformly non-perpendicular to said body rails so that a chevron pattern of said beams is created.
Claim 4
Dependent Claim
28 words
The trailer of claim 1, further comprising wheeled trailer support means, adjacent said main chassis rails, for supporting said trailer and for enabling said trailer to be moved.
Claim 5
Dependent Claim
23 words
The trailer of claim 3, wherein said trailer support means further comprises a trailer hitch for attaching said trailer to a truck tractor.
Claim 6
Dependent Claim
25 words
The trailer of claim 3, wherein said trailer support means further comprises retractable landing gear for stabilizing said trailer when it is not in motion.
Claim 7
Dependent Claim
26 words
The trailer of claim 1, further comprising top cover lids which extend for the length of the trailer and open to permit access to the body.
Claim 8
Dependent Claim
20 words
The trailer of claim 1, wherein the hoist elevation means comprises telescoping dumping means for dumping residue from said body.
Claim 9
Dependent Claim
23 words
The trailer of claim 7, wherein said dumping means comprises a telescoping hoist which provides a minimum dumping angle of at least 55°.
Claim 10
Dependent Claim
16 words
The trailer of claim 1, further comprising means for heating said residue contained in said body.
Claim 11
Dependent Claim
51 words
The trailer of claim 9, wherein said means for heating said residue comprises a conduit for attachment to a truck tractor exhaust system, said conduit providing means for directing exhaust gases from said exhaust system to duct work dispersed throughout the periphery of said body and terminating in an exhaust port.
Claim 12
Dependent Claim
192 words
An improved combination in a towable trailer having ground engaging support means and a trailer body for holding and dumping liquid containing residue wherein the trailer provides hoist elevation means for raising one end of said body for dumping said body, the improvement comprising: (a) body rails which slope from the respective ends of the trailer toward a common vertical axis; (b) a plurality of floor support means positioned adjacent to said body rails and forming a support plane which slopes from the respective ends toward said common vertical axis; (c) a floor mounted on said plurality of floor support means and sloping from said respective ends towards said common vertical axis; (d) vertical walls mounted about the perimeter of said floor on both sides and one end thereof; (e) a dump gate pivotally supported by said side walls and positioned at the other end thereof; (f) an elevated floor portion positioned adjacent to said dump gate and sloping from the sealing point of said dump gate toward said common vertical axis; and (g) at least one drain port positioned at said common vertical axis in a side wall adjacent said floor.
Claim 13
Dependent Claim
192 words
An improved combination in a towable trailer having ground engaging support means and a trailer body for holding and dumping liquid containing residue wherein the trailer provides hoist elevation means for raising one end of said body for dumping said body, the improvement comprising: (a) body rails which slope from the respective ends of the trailer toward a common vertical axis; (b) a plurality of floor support means positioned adjacent to said body rails and forming a support plane which slopes from the respective ends toward said common vertical axis; (c) a floor mounted on said plurality of floor support means and sloping from said respective ends towards said common vertical axis; (d) vertical walls mounted about the perimeter of said floor on both sides and one end thereof; (e) a dump gate pivotally supported by said side walls and positioned at the other end thereof; (f) an elevated floor portion positioned adjacent to said dump gate and sloping from the sealing point of said dump gate toward said common vertical axis; and (g) at least one drain port positioned at said common vertical axis in a side wall adjacent said floor.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-17 | 1990-05-19 | 1990-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-17 | 1994-05-19 | 1994-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-17 | 1998-05-19 | 1998-11-18 | $7700.00 | Window Closed / Lapsed |