US3788702A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bulk material handling system
Assignee: Individual
•
Filing: 1972-02-09
•
Granted: 1974-01-29
•
Expires: 1992-02-09
Abstract
Abstract An improved system for the handling of bulk materials such as trash refuse, is provided. This system consists of two units, one of which is a large drop frame trailer, enclosed on all of its four sides, with door openings on the sides, the rear end and the top completely open, for loading. A door opening is also provided at the rear end for unloading. The other unit is a modified tractor on which is mounted a hydraulic operated hoist. It has a fifth wheel coupling arrangement and a capability of lifting the trailer up end to a required height of 30 feet for unloading of the trash refuse.
Inventors
- 👤 C Toboll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:25
CPC Classifications
B; B60; B60P; B60P1/00; B60P1/04; B60P1/16; B60P1/18
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A bulk material handling system for handling trash refuse, comprising, a tractor including a rear axle and a chassis, a portion of said chassis extending over said rear axle, a hydraulic operated hoist mounted on said chassis over said rear axle, and a large dry frame type trailer detachably attachable to said tractor independently of any engagement with and elevatable by said hoist, with the sides of said trailer being enclosed with door openings on the sides and the rear end thereof, and with the top completely open, for loading; said trailer having an inclined floor which covers the rear wheel wells and produces a smooth unobstructed surface that allows the load to be dumped freely from said trailer.
Claim 2
Dependent Claim
119 words
A bulk material handling system for handling trash refuse, comprising, a tractor including a rear axle and a chassis, a portion of said chassis extending over said rear axle, a hydraulic operated hoist mounted on said chassis over said rear axle, and a large dry frame type trailer detachably attachable to said tractor independently of any engagement with and elevatable by said hoist, with the sides of said trailer being enclosed with door openings on the sides and the rear end thereof, and with the top completely open, for loading; said trailer having an inclined floor which covers the rear wheel wells and produces a smooth unobstructed surface that allows the load to be dumped freely from said trailer.
Claim 3
Dependent Claim
27 words
A bulk material handling system as recited in claim 1, said hydraulically operated hoist being capable of lifting said trailer up-end to a pre-determined height for dumping.
Claim 4
Dependent Claim
33 words
A bulk material handling system as recited in claim 1, wherein said tractor has a separate braking system for each side, thereby giving it better maneuverability in the rough terrain of a land-fill.
Claim 5
Dependent Claim
55 words
A bulk material handling system as recited in claim 1, and additionally a lift boom hinged at one end for pivotal movement to a portion of said chassis forward of said rear axle, said opposite end of said boom attachable to said trailer and said hoist attached to an intermediate portion of said lift boom.
Claim 6
Dependent Claim
60 words
A bulk material handling system as recited in claim 4, and additionally said opposite end of said lift boom extending rearwardly and in cantilever from said chassis and said rear axle so that said lift boom is longer than the portion of said chassis which extends rearwardly from the point at which said lift boom is hinged to said chassis.
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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) | 1977-01-28 | 1977-07-30 | 1978-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-28 | 1981-07-30 | 1982-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-28 | 1985-07-30 | 1986-01-29 | $7700.00 | Window Closed / Lapsed |