US3709360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanized collection of solid waste material
Assignee: Individual
•
Filing: 1971-01-15
•
Granted: 1973-01-09
•
Expires: 1991-01-15
Abstract
Abstract Provision is made for mechanized collection of solid waste materials along highways and the like by use of endless-belt type magnetic conveyors, operable in conjunction with trucks, tractors, grass cutters and other roadside maintenance vehicles. Enchanced retrieval results from articulation of the conveyor arm and use of cyclically operative electromagnets. Methods are provided for making glass, paper laminates, and the like magnetizable by inclusion of magnetic material during manufacture or fabrication.
Inventors
- 👤 R Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:03
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/30; E; E01; E01H; E01H1/00; E01H1/14
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
125 words
Environmental clean up apparatus for mechanized retrieval of magnetizable materials, such as metal cans, containers, and the like, comprising elongated magnetic conveyor means including magnetic endless belt means mounted for movement to provide retrieval and removal of magnetizable materials from a retrieval area, vehicle means supporting said conveying means for transporting the elongated magnetic conveyor means over the retrieval area with a working run of the magnetic endless belt in close positional relationship to the retrieval area being traversed, litter receptacle means associated with and transported by the vehicle means, means interconnecting the elongated conveyor means and vehicle means for activating the magnetic endless belt means, and means for removing retrieved material from the magnetic endless belt means for delivery to the litter receptacle means.
Claim 2
Dependent Claim
125 words
Environmental clean up apparatus for mechanized retrieval of magnetizable materials, such as metal cans, containers, and the like, comprising elongated magnetic conveyor means including magnetic endless belt means mounted for movement to provide retrieval and removal of magnetizable materials from a retrieval area, vehicle means supporting said conveying means for transporting the elongated magnetic conveyor means over the retrieval area with a working run of the magnetic endless belt in close positional relationship to the retrieval area being traversed, litter receptacle means associated with and transported by the vehicle means, means interconnecting the elongated conveyor means and vehicle means for activating the magnetic endless belt means, and means for removing retrieved material from the magnetic endless belt means for delivery to the litter receptacle means.
Claim 3
Dependent Claim
25 words
The apparatus of claim 1 in which the magnetic endless belt means carries a plurality of magnetic elements in closely spaced relationship along its length.
Claim 4
Dependent Claim
15 words
The apparatus of claim 2 in which the plurality of magnetic elements are permanent magnets.
Claim 5
Dependent Claim
44 words
The apparatus of claim 1 in which the elongated magnetic conveyor means comprises articulated interconnected segments movable relative to one another in an upright plane permitting positional adjustment of the elongated magnetic conveyor means along its length to the contour of the retrieval area.
Claim 6
Dependent Claim
34 words
The apparatus of claim 1 in which the elongated magnetic conveyor means are positioned to extend in substantially transverse relationship to the intended direction of movement of the vehicle means over the retrieval area.
Claim 7
Dependent Claim
32 words
The apparatus of claim 5 in which such magnetic conveyor means includes a plurality of elongated magnetic conveyors for delivering retrieved material to the litter receptacle means associated with the vehicle means.
Claim 8
Dependent Claim
33 words
The apparatus of claim 1 including mechanical conveyor means adapted to receive the material removed from the magnetic endless belt means for delivery to the litter receptacle means associated with the vehicle means.
Claim 9
Dependent Claim
71 words
The apparatus of claim 1 in which such means for removing retrieved material comprises mechanically operable pick-off vane means positioned adjacent to and at a substantial angle to the direction of movement of the endless belt magnetic means at a position where the magnetic endless belt means is travelling in a downwardly direction to permit material removed from the magnetic endless belt means to travel downwardly under the force of gravity.
Claim 10
Dependent Claim
20 words
The apparatus of claim 1 in which such means for removing retrieved material includes means for magnetically releasing retrieved material.
Claim 11
Dependent Claim
10 words
The apparatus of claim 2 including selectively operable electromagnet means.
Claim 12
Dependent Claim
20 words
The apparatus of claim 10 including means for periodic operation of the electromagnet means to provide enhanced magnetic pick-up force.
Claim 13
Dependent Claim
53 words
The apparatus of claim 3 in which electromagnet means are positioned along the mAgnetic endless belt means to confront the retrieval area with a magnetic pick-up force and are periodically operable to increase magnetic pick-up force on magnetizable items in the retrieval area to bring such items under control of such permanent magnets.
References Cited (Backward Citations)
US1759687A
Cited
US2836953A
Cited
US2812630A
Cited
US2873843A
Cited
US3084495A
Cited
US3210121A
Cited
US3232408A
Cited
US3185285A
Cited
US3164940A
Cited
US3214002A
Cited
US3430425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |