US3840907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compost toilet
Assignee: Individual
•
Filing: 1972-09-06
•
Granted: 1974-10-15
•
Expires: 1992-09-06
Abstract
Abstract A compost toilet comprising at least one grate provided at an excrement collecting compartment for depositing thereon a mat intended to form a bacteria nutritive substratum, a blower located in the collecting compartment for positively circulating air, and air guide means for directing the circulated air against the mat.
Inventors
- 👤 H Sundberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 00:36
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1236; C02F3/1242; A; A47; A47K; A47K11/00; A47K11/02; C05; C05F; C05F3/00; C05F3/04; Y; Y02; Y02A; Y02A40/00; Y02A40/10; Y02A40/20; Y02A50/00; Y02A50/30; Y02P; Y02P20/00; Y02P20/141; Y02P20/145; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S4/00; Y10S4/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
124 words
A compost toilet comprising, in combination, means defining an excrement collecting compartment, at least one support arranged in said collecting compartment, a mat carried by said support for building up a bacteria nutritive substratum, blower means located in said collecting compartment for positively circulating air therein, and air guide means for directing the circulated air against said mat, an air withdrawal pipe being in flow communication with said collecting compartment via air channels defined by said air guide means, said pipe being directed upwardly to the ambient atmosphere like a chimney, with a heating source in said air guide means for the circulated air, which source is so arranged that it is free from contact with said mat and therefore also with the excrements.
Claim 2
Dependent Claim
124 words
A compost toilet comprising, in combination, means defining an excrement collecting compartment, at least one support arranged in said collecting compartment, a mat carried by said support for building up a bacteria nutritive substratum, blower means located in said collecting compartment for positively circulating air therein, and air guide means for directing the circulated air against said mat, an air withdrawal pipe being in flow communication with said collecting compartment via air channels defined by said air guide means, said pipe being directed upwardly to the ambient atmosphere like a chimney, with a heating source in said air guide means for the circulated air, which source is so arranged that it is free from contact with said mat and therefore also with the excrements.
Claim 3
Dependent Claim
43 words
The compost toilet as defined in claim 1, further comprising an electric motor for said blower means, means defining a channel for the circulated air, said electric motor being located in said channel and serving as said heating source for the circulated air.
Claim 4
Dependent Claim
15 words
The compost toilet as defined in claim 1, wherein said mat is formed of cellulose.
Claim 5
Dependent Claim
14 words
The compost toilet as defined in claim 1, wherein said support comprises a grate.
Claim 6
Dependent Claim
39 words
The compost toilet as defined in claim 4, further comprising agitator means located within said collecting compartment, above said grate and extending at least approximately parallel to said grate for processing the excrements over the surface of the grate.
Claim 7
Dependent Claim
66 words
The compost toilet as defined in claim 5, wherein said agitator means has a shaft, an excrement collecting basin, an actuating arm provided at said agitator shaft for tipping said collecting basin, a toilet bowl within said collecting compartment, said bowl having a floor portion, said collecting basin bearing against said floor portion of the bowl and being tiltable towards and away from said collecting compartment.
References Cited (Backward Citations)
US2520657A
Cited
US2700775A
Cited
US3136608A
Cited
US3523012A
Cited
US3522613A
Cited
US3633220A
Cited
US3756784A
Cited
US3683426A
Cited
US3727241A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-14 | 1978-04-15 | 1978-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-14 | 1982-04-15 | 1982-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-14 | 1986-04-15 | 1986-10-15 | $7700.00 | Window Closed / Lapsed |