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US3969133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for self-cleaning a restroom
Assignee: Individual
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Filing: 1974-06-25
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Granted: 1976-07-13
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Expires: 1994-06-25
Abstract
Abstract A restroom is automatically cleaned by moving a vertically disposed spray boom in a manner so as to generally track the interior periphery of the restroom enclosure to spray both the inner sidewall of the enclosure and the fixtures mounted therewithin with cleansing fluid, the fluid then being drained from the enclosure, after which any accumulated vapors are exhausted. Heated drying air is then passed through the enclosure to complete the cleaning cycle.
Inventors
- 👤 Gilbert T. McTighe
- 👤 Sture A. Johansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:06
CPC Classifications
E; E03; E03D; E03D9/00; E03D9/002; E04; E04B; E04B1/00; E04B1/348; E04B1/34869
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
81 words
The method for cleaning a restroom, said restroom including an enclosure having at least one bathroom fixture mounted centrally therein, comprising: spraying the interior of said enclosure and all fixtures mounted therein with cleansing fluids by moving an elongated, vertical spray boom in a manner so as to generally track the interior periphery of said enclosure; draining said fluids out of said enclosure; evacuating from said enclosure vapors resulting from said spraying step; and passing heated drying air through said enclosure.
Claim 2
Independent Claim
81 words
The method for cleaning a restroom, said restroom including an enclosure having at least one bathroom fixture mounted centrally therein, comprising: spraying the interior of said enclosure and all fixtures mounted therein with cleansing fluids by moving an elongated, vertical spray boom in a manner so as to generally track the interior periphery of said enclosure; draining said fluids out of said enclosure; evacuating from said enclosure vapors resulting from said spraying step; and passing heated drying air through said enclosure.
Claim 3
Independent Claim
124 words
The method for cleaning a restroom, said restroom including an enclosure having bathroom fixture means mounted therein, said method including the steps of: moving a generally vertically disposed boom in a manner so as to generally track the periphery of the interior of said enclosure, said boom having a plurality of vertically spaced nozzles thereon arranged to direct spray both inwardly and outwardly over at least the vertical distance from the floor of said enclosure to above said bathroom fixture means; spraying fluids through said nozzles on said boom while said boom is being moved around the periphery of the interior of said enclosure, to effect cleansing of the interior of said enclosure and said fixture means; and draining spent fluid from said enclosure.
Claim 4
Independent Claim
124 words
The method for cleaning a restroom, said restroom including an enclosure having bathroom fixture means mounted therein, said method including the steps of: moving a generally vertically disposed boom in a manner so as to generally track the periphery of the interior of said enclosure, said boom having a plurality of vertically spaced nozzles thereon arranged to direct spray both inwardly and outwardly over at least the vertical distance from the floor of said enclosure to above said bathroom fixture means; spraying fluids through said nozzles on said boom while said boom is being moved around the periphery of the interior of said enclosure, to effect cleansing of the interior of said enclosure and said fixture means; and draining spent fluid from said enclosure.
Claim 5
Dependent Claim
39 words
The method as recited in claim 2, wherein said step of spraying includes: spraying the interior of said enclosure and said fixture means first with water, then with water containing a suitable cleansing agent, and finally with rinse water.
Claim 6
Dependent Claim
34 words
The method as recited in claim 2, including the further steps of: evacuating from said enclosure vapors resulting from said spraying step; and passing drying air through said enclosure to complete a cleaning cycle.
Claim 7
Independent Claim
144 words
The method for cleaning a restroom, said restroom including an enclosure having a sidewall with a door therein, a bottom wall, and bathroom fixture means disposed therewithin, said method including the steps of: moving a generally vertically disposed boom in a manner so as to generally track the periphery of the interior of said enclosure, said boom having a plurality of vertically spaced nozzles thereon arranged to direct spray both inwardly and outwardly over at least the vertical distance from the bottom wall of said enclosure to above said fixture means; spraying cleansing and then rinsing liquids through said nozzles on said boom while said boom is being moved around the periphery of the interior of said enclosure, to effect cleansing of the interior of said enclosure and said fixture means; draining spent fluid from said enclosure; and passing drying air through said enclosure.
Claim 8
Independent Claim
144 words
The method for cleaning a restroom, said restroom including an enclosure having a sidewall with a door therein, a bottom wall, and bathroom fixture means disposed therewithin, said method including the steps of: moving a generally vertically disposed boom in a manner so as to generally track the periphery of the interior of said enclosure, said boom having a plurality of vertically spaced nozzles thereon arranged to direct spray both inwardly and outwardly over at least the vertical distance from the bottom wall of said enclosure to above said fixture means; spraying cleansing and then rinsing liquids through said nozzles on said boom while said boom is being moved around the periphery of the interior of said enclosure, to effect cleansing of the interior of said enclosure and said fixture means; draining spent fluid from said enclosure; and passing drying air through said enclosure.
Claim 9
Dependent Claim
29 words
The method as recited in claim 5, including the additional step before passing drying air through said enclosure of: evacuating from said enclosure vapors resulting from said spraying step.
Claim 10
Dependent Claim
38 words
The method as recited in claim 6, including additionally the initial step of locking said door of said enclosure before moving said boom, and the final step after passing drying air through said enclosure of unlocking said door.
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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) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |