US3847299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making compost
Assignee: Individual
•
Filing: 1972-10-13
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Granted: 1974-11-12
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Expires: 1992-10-13
Abstract
Abstract A box for use in making compost comprises interlocking side wall sections of a material, such as expanded polystyrene, having a low thermal conductivity. The box has two lids, namely an inner lid which fits within the side walls to engage and compact the compost and a lid proper which fits on the side walls. Grooves are formed in the inner faces of the wall sections and in the lower face of the inner lid, the grooves communicating with through holes to permit controlled air circulation.
Inventors
- 👤 A Page
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:14
CPC Classifications
C; C05; C05F; C05F17/00; C05F17/90; C05F17/907; Y; Y02; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W30/00; Y02W30/40; Y10; Y10S; Y10S220/00; Y10S220/27
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
71 words
Composting apparatus comprising a plurality of sections which can be assembled to form a box, the sections being thermal insulators and grooves being formed in the inner faces of the sections in communication with through holes, said box being provided with a pair of lids, namely an inner lid which fits loosely within the side walls of the box and an outer lid which substantially closes the top of the box.
Claim 2
Dependent Claim
71 words
Composting apparatus comprising a plurality of sections which can be assembled to form a box, the sections being thermal insulators and grooves being formed in the inner faces of the sections in communication with through holes, said box being provided with a pair of lids, namely an inner lid which fits loosely within the side walls of the box and an outer lid which substantially closes the top of the box.
Claim 3
Dependent Claim
28 words
Composting apparatus according to claim 1, wherein said inner lid is of generally square form and is formed on its inner face with a plurality of intersecting grooves.
Claim 4
Dependent Claim
54 words
Composting apparatus comprising a plurality of sections which can be assembled to form a box, the sections being thermal insulators which are provided with through holes of frusto-conical form and grooves of semi-cylindrical form in the inner faces of the sections in communication with said through holes, said grooves being inclined to the vertical.
Claim 5
Dependent Claim
54 words
Composting apparatus comprising a plurality of sections which can be assembled to form a box, the sections being thermal insulators which are provided with through holes of frusto-conical form and grooves of semi-cylindrical form in the inner faces of the sections in communication with said through holes, said grooves being inclined to the vertical.
Claim 6
Dependent Claim
50 words
Composting apparatus according to claim 3, wherein the grooves are inclined at approximately 45* to the vertical and the sections comprise a first series of identical sections and a second series, which are also identical and which have a vertical dimension twice that of a section of the first series.
Claim 7
Dependent Claim
91 words
Composting apparatus comprising a plurality of sections of thermal insulating material which can be assembled to form a box, the sections being of rectangular form and including a first series which have generally T-shaped end formations and a second series which have generally L-shaped end formations, the sections of the second series having a vertical dimension half that of the first series and the T-shaped and L-shaped end formations being adapted to interlock to hold the sections in the assembled condition, said sections being formed with through holes for ventilation purposes.
Claim 8
Dependent Claim
91 words
Composting apparatus comprising a plurality of sections of thermal insulating material which can be assembled to form a box, the sections being of rectangular form and including a first series which have generally T-shaped end formations and a second series which have generally L-shaped end formations, the sections of the second series having a vertical dimension half that of the first series and the T-shaped and L-shaped end formations being adapted to interlock to hold the sections in the assembled condition, said sections being formed with through holes for ventilation purposes.
References Cited (Backward Citations)
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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) | 1977-11-11 | 1978-05-13 | 1978-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-11 | 1982-05-13 | 1982-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-11 | 1986-05-13 | 1986-11-12 | $7700.00 | Window Closed / Lapsed |