US4049551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device for open receptacle
Assignee: Safety Kleen Systems Inc
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Filing: 1975-03-12
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Granted: 1977-09-20
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Expires: 1995-03-12
Abstract
Abstract A safety device for open receptacles adapted for use with flammable solvents and the like. The safety device comprises a unitary piece adapted to be received within the drain opening of a sink or other receptacle in which parts and mechanical components are temporarily received for cleaning by passage of solvent thereover. The device includes a locating flange, and a wall which subdivides the receptacle drain opening into an ordinary flow path and a second opening. The wall also defines an alternate drain flow path between other portions of the receptacle interior and the drain opening. The alternate flow path to the secondary drain is preferably defined by a contoured wall which cooperates with the interior surfaces of the receptacle to define a drain path for solvent which can flow through the principal drain path. This wall contains a large number of openings so that accidental or even intentional blockage of the drain path cannot be readily accomplished. Accordingly, the possibility of unsafe accumulation of a solvent in the receptacle is greatly reduced and the safety hazard occasioned thereby is eliminated or minimized.
Inventors
- 👤 Karl G. Otzen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:44
CPC Classifications
A; A47; A47J; A47J47/00; A47J47/20
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
209 words
A safety device adapted for freely removable reception in the drain outlet opening of a liquid receptacle having a generally horizontally extending bottom wall portion, a drain outlet opening therein, and generally vertically extending side wall portions, said safety device including means for locating said device within said outlet opening, a generally horizontally extending, perforated first wall portion lying parallel to the plane of said drain outlet opening, said first wall portion providing a direct drain path from said receptacle interior, and a second wall portion cooperating with said receptacle walls to define an alternate drain flow path from said receptacle interior, said second wall portion being contoured so as to include a first part attached to and extending generally upwardly from said first wall portion, a second part lying generally parallel to said bottom receptacle wall and a third part lying generally parallel to at least one of said receptacle side walls, said second and third parts of said contoured wall including marginal portions with edges adapted to engage said bottom and side walls respectively, said contoured wall further including a plurality of openings in each of said parts thereof, said openings providing plural paths of communication between said receptacle interior and said alternate drain flow path-defining means.
Claim 2
Dependent Claim
209 words
A safety device adapted for freely removable reception in the drain outlet opening of a liquid receptacle having a generally horizontally extending bottom wall portion, a drain outlet opening therein, and generally vertically extending side wall portions, said safety device including means for locating said device within said outlet opening, a generally horizontally extending, perforated first wall portion lying parallel to the plane of said drain outlet opening, said first wall portion providing a direct drain path from said receptacle interior, and a second wall portion cooperating with said receptacle walls to define an alternate drain flow path from said receptacle interior, said second wall portion being contoured so as to include a first part attached to and extending generally upwardly from said first wall portion, a second part lying generally parallel to said bottom receptacle wall and a third part lying generally parallel to at least one of said receptacle side walls, said second and third parts of said contoured wall including marginal portions with edges adapted to engage said bottom and side walls respectively, said contoured wall further including a plurality of openings in each of said parts thereof, said openings providing plural paths of communication between said receptacle interior and said alternate drain flow path-defining means.
Claim 3
Dependent Claim
19 words
A safety device as defined in claim 1, wherein said device is made from a relatively rigid, fire-proof material.
Claim 4
Dependent Claim
183 words
A safety device for freely removable reception in the drain opening of a solvent receptacle, said device including a generally horizontally extending mounting flange portion adapted to overlie the margins of said receptacle defining said opening, a perforated screening wall lying below said flange and being offset therefrom, an offsetting, perforated flange joining said mounting flange to said screening wall, a wall at least partially defining an alternate flow path to said opening, said wall including portions joined to said offsetting flange and said screen portion and extending between spaced apart portions of said mounting flange, generally horizontally and generally vertically extending wall portions joined to each other, generally vertically and horizontally extending margins attached respectively to said horizontally and vertically extending wall portions, edges of said margins being adapted to lie along said receptacle walls, with said horizontally and vertically extending wall portions being perforated, whereby said drain opening is subdivided into a first solvent outlet portion screened by said perforated screening wall and a second solvent outlet portion communicating with the path defined by said horizontally and vertically extending wall portions.
Claim 5
Dependent Claim
183 words
A safety device for freely removable reception in the drain opening of a solvent receptacle, said device including a generally horizontally extending mounting flange portion adapted to overlie the margins of said receptacle defining said opening, a perforated screening wall lying below said flange and being offset therefrom, an offsetting, perforated flange joining said mounting flange to said screening wall, a wall at least partially defining an alternate flow path to said opening, said wall including portions joined to said offsetting flange and said screen portion and extending between spaced apart portions of said mounting flange, generally horizontally and generally vertically extending wall portions joined to each other, generally vertically and horizontally extending margins attached respectively to said horizontally and vertically extending wall portions, edges of said margins being adapted to lie along said receptacle walls, with said horizontally and vertically extending wall portions being perforated, whereby said drain opening is subdivided into a first solvent outlet portion screened by said perforated screening wall and a second solvent outlet portion communicating with the path defined by said horizontally and vertically extending wall portions.
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) | 1980-09-19 | 1981-03-21 | 1981-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-19 | 1985-03-21 | 1985-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-19 | 1989-03-21 | 1989-09-20 | $7700.00 | Window Closed / Lapsed |