← Back to Patent Explorer
US4351164A Expired / Lapsed US ⏱️ 0.0 years remaining

Porous salad bowl including ribbed lid for cooling

Assignee: Individual
•
Filing: 1981-05-08
•
Granted: 1982-09-28
•
Expires: 2001-05-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A hollow vessel of unglazed terra cotta pottery which, when moistened, keeps the temperature of a salad below room temperature when it is removed from the refrigerator to the dining table for comsumption. Leftover salad, even when impregnated with salad dressing, may be stored in this vessel in the refrigerator for several days, without losing either its crispness or its flavor.

Inventors

  • 👤 Peter Christiani

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 19:15
CPC Classifications
A; A47; A47G; A47G19/00; A47G19/26; A47G19/02; A47G23/00; A47G23/04; A47G23/06; F; F25; F25D; F25D1/00; F25D2331/00; F25D2331/80; F25D2331/804

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 233 words
In a bowl of unglazed porous material that is sufficiently porous for cooling of foods contained therein by evaporation of liquid previously absorbed by said porous material when said porous material has been moistened and defining a cavity for receiving said foods, said bowl having a bottom and an upper rim and including a unitary dished lid of said porous material having a concave side and a convex side, the improvement comprising: ribs integral with and extending upwardly from said concave side of said lid and dividing said concave side into a plurality of serving compartments, said ribs also increasing the total surface area of said concave side relative to the surface area of said convex side to thereby increase the rate of evaporation of said liquid from said lid to thus improve the cooling of said foods, said convex side being of shallow curvature relative to said bowl cavity so that said lid may be inverted on said rim without substantially extending into said bowl cavity, such that said lid may be inverted on said rim between a concave side down position and a concave side up position for selecting a higher or a lower rate of evaporative cooling of said covered foods, and when placed with said ribbed, concave side up said lid is also useful as a chilled serving tray while simultaneously covering and cooling the contents of said bowl.
Claim 2
Dependent Claim 233 words
In a bowl of unglazed porous material that is sufficiently porous for cooling of foods contained therein by evaporation of liquid previously absorbed by said porous material when said porous material has been moistened and defining a cavity for receiving said foods, said bowl having a bottom and an upper rim and including a unitary dished lid of said porous material having a concave side and a convex side, the improvement comprising: ribs integral with and extending upwardly from said concave side of said lid and dividing said concave side into a plurality of serving compartments, said ribs also increasing the total surface area of said concave side relative to the surface area of said convex side to thereby increase the rate of evaporation of said liquid from said lid to thus improve the cooling of said foods, said convex side being of shallow curvature relative to said bowl cavity so that said lid may be inverted on said rim without substantially extending into said bowl cavity, such that said lid may be inverted on said rim between a concave side down position and a concave side up position for selecting a higher or a lower rate of evaporative cooling of said covered foods, and when placed with said ribbed, concave side up said lid is also useful as a chilled serving tray while simultaneously covering and cooling the contents of said bowl.

References Cited (Backward Citations)

US103473A Cited
US264184A Cited
US363625A Cited
US539727A Cited
US1017217A Cited
GB234603A Cited
US2128218A Cited
US3240610A Cited
US3244537A Cited
US3710589A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1985-09-27 1986-03-29 1986-09-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1989-09-27 1990-03-29 1990-09-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1993-09-27 1994-03-29 1994-09-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag