US3747516A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of baling town or urban refuse
Assignee: Refuse Compaction Ltd
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Filing: 1971-04-22
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Granted: 1973-07-24
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Expires: 1991-04-22
Abstract
Abstract In forming batches of town refuse into bales in order to prevent the formation of compressed air pockets within the bale which would tend to cause the bale to increase in dimension or perhaps disintegrate, the batch of material while in the bale chamber is treated with steam so that this steam at least partially fills the pockets an upon cooling forms partial vacuums in the pockets, whereby the inherent compressive forces of compressed air pockets are avoided.
Inventors
- 👤 E Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:30
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/30; B30B9/3078; B30B9/3003
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
92 words
A method of forming in a bale chamber a highly compacted bale from a batch of refuse comprising the Steps of: filling the bale chamber with steam; and forcing a loose batch of refuse under power into the baling chamber and compacting it in the chamber causing the steam to displace air from pockets in the refuse and thereby preventing the pockets in the refuse from trapping air during the compaction, said pockets being filled with steam so that the subsequent condensation of said steam causes a partial vacuum to aid compaction.
Claim 2
Independent Claim
92 words
A method of forming in a bale chamber a highly compacted bale from a batch of refuse comprising the Steps of: filling the bale chamber with steam; and forcing a loose batch of refuse under power into the baling chamber and compacting it in the chamber causing the steam to displace air from pockets in the refuse and thereby preventing the pockets in the refuse from trapping air during the compaction, said pockets being filled with steam so that the subsequent condensation of said steam causes a partial vacuum to aid compaction.
Claim 3
Dependent Claim
41 words
The method of claim 1 wherein the refuse is given initial compaction in the bale chamber in the presence of steam to form a partly formed bale and then the partly formed bale is subjected to a step of final compaction.
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) | 1976-07-23 | 1977-01-22 | 1977-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-23 | 1981-01-22 | 1981-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-23 | 1985-01-22 | 1985-07-24 | $7700.00 | Window Closed / Lapsed |