US4485801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooking utensils
Assignee: Individual
•
Filing: 1983-10-25
•
Granted: 1984-12-04
•
Expires: 2003-10-25
Abstract
Abstract A saucepan of cast aluminium or moulded ceramics or glass has a trough around its rim to catch liquid boiling over. Small bore ducts lead down within the casting from the base of the trough into the main portion of the pan to return boiled-over liquid. The ducts trap bubbles in the boiling liquid to prevent upward flow. A vented lid may be provided to direct water condensate on its underside to drip into the trough, where it may again vaporize and escape via the vent. A basket can also be fitted within the main portion of the pan.
Inventors
- 👤 Wyndham Hodges
- 👤 Collin E. Symonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:36
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/56; A47J27/58; A47J27/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
96 words
A cooking pan comprising an integrally formed structure having a base and a wall upstanding from the periphery of the base and dividing around the rim to form an overspill trough, there being small bore ducting of a diameter in the range 2-7 mm and 8 to 25 mm in length formed within the thickness of the wall leading down from the base of the trough to open into the interior of the pan, said small bore ducting being entirely surrounded by said wall and tapering, being wider at the lower end than at the upper.
Claim 2
Dependent Claim
96 words
A cooking pan comprising an integrally formed structure having a base and a wall upstanding from the periphery of the base and dividing around the rim to form an overspill trough, there being small bore ducting of a diameter in the range 2-7 mm and 8 to 25 mm in length formed within the thickness of the wall leading down from the base of the trough to open into the interior of the pan, said small bore ducting being entirely surrounded by said wall and tapering, being wider at the lower end than at the upper.
Claim 3
Dependent Claim
13 words
A cooking pan according to claim 1, wherein the structure is cast metal.
Claim 4
Dependent Claim
15 words
A cooking pan according to claim 1, wherein the structure is moulded ceramics or glass.
Claim 5
Dependent Claim
26 words
A cooking pan according to claim 1, wherein each duct is a drilling of the order of 8-20 mm in length and 2-3 mm in diameter.
Claim 6
Dependent Claim
26 words
A cooking pan according to claim 4, and further comprising a basket adapted to be suspended within the pan from the inner rim of the trough.
Claim 7
Dependent Claim
41 words
A cooking pan according to claim 1, wherein the wall divides with an inner portion continuing up from the single part and an outer portion projecting outwardly and then upwardly to a rim height greater than that of the inner portion.
Claim 8
Dependent Claim
44 words
A cooking pan according to claim 6, wherein, at the junction of the inner and outer portions, the single part of the wall is locally thickened externally in the form of circumferentially spaced fillets, the ducting being formed in a selection of such fillets.
Claim 9
Dependent Claim
57 words
A cooking pan according to claim 1, and further comprising a lid, the lid having a domed central portion which will clear the inner rim of the trough and an upwardly and outwardly inclined outer edge portion, which will locate on the outer rim of the trough, these portions merging at an annular node overlying the trough.
Claim 10
Dependent Claim
17 words
A cooking pan according to claim 8, wherein venting means are provided in the outer edge portion.
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) | 1987-12-04 | 1988-06-04 | 1988-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-12-04 | 1992-06-04 | 1992-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-12-04 | 1996-06-04 | 1996-12-04 | $7700.00 | Window Closed / Lapsed |