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US5313878A Expired / Lapsed US ⏱️ 0.0 years remaining

Microwave ovenware apparatus, hydrating microwave ovens and microwave water purifier

Assignee: Individual
•
Filing: 1992-06-22
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Granted: 1994-05-24
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Expires: 2012-06-22
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Abstract

Abstract Microwave oven apparatus includes provisions for adding moisture to foods being cooked in a microwave oven to reduce drying of the food during the cooking procedure. Different embodiments of a microwave oven include a microwave oven with mister elements, one mister element providing a cold mist and another mister embodiment providing a hot or steam mist derived from the heating of water in a reservoir of the microwave oven. A microwave oven may also include a water tray at the bottom of the oven, with water in the tray comprising the source of moisture for food being cooked in a dish within the oven. At the top of the oven, or above the mister elements, is a filter, preferably made of paper, or the like, through which moisture may permeate, but which prevents moisture condensing on the top of the microwave from falling onto the food in the form of droplets. Cooking elements for cooking foods in a microwave oven include provisions for a water reservoir in an outer cooking element, with a inner cooking element holding food to be cooked. Different embodiments are disclosed, and different types of elements for containing or holding food to be cooked are also disclosed. Also disclosed are different embodiments of pitchers in which liquids may be heated relatively rapidly in microwave ovens, and apparatus for purifying water in a microwave oven by condensing water vapor.

Inventors

  • 👤 Clifford C. Strait, Jr.

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-01 09:06
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/64; H05B6/80; H05B6/802; A; A47; A47J; A47J36/00; A47J36/02; A47J36/027; B; B01; B01D; B01D1/00; B01D1/0011; B01D1/0017; B65; B65D; B65D81/00; B65D81/34; B65D81/3446; B65D81/3453; H05B6/647; B65D2581/00; B65D2581/34; B65D2581/3401; B65D2581/3429; B65D2581/3433; Y; Y10; Y10S; Y10S99/00; Y10S99/14

Claims Analysis

Total Claims: 8
Claim 1
Independent Claim 114 words
Microwave oven apparatus for cooking food, comprising, in combination: a microwave oven having top means; walls extending downwardly from the top means; a bottom for receiving dish elements; the top means, bottom, and walls defining an interior space for cooking food placed therein by microwave energy; means for providing moisture in the interior space for the food being cooked, including mister means for misting the interior space; a condensing surface disposed below the top means on which moisture vaporized by microwave energy may condense; filter means spaced downwardly from the condensing surface through which moisture may pass upwardly, but preventing any moisture condensing above the filter means from dropping onto the food being cooked.
Claim 2
Dependent Claim 114 words
Microwave oven apparatus for cooking food, comprising, in combination: a microwave oven having top means; walls extending downwardly from the top means; a bottom for receiving dish elements; the top means, bottom, and walls defining an interior space for cooking food placed therein by microwave energy; means for providing moisture in the interior space for the food being cooked, including mister means for misting the interior space; a condensing surface disposed below the top means on which moisture vaporized by microwave energy may condense; filter means spaced downwardly from the condensing surface through which moisture may pass upwardly, but preventing any moisture condensing above the filter means from dropping onto the food being cooked.
Claim 3
Dependent Claim 34 words
The apparatus of claim 1 in which the mister means includes a mister and a reservoir for water disposed beneath the bottom and pump means for pumping water from the reservoir to the mister.
Claim 4
Dependent Claim 24 words
The apparatus of claim 1 in which the mister means includes a water input conduit and a mister connected to the water inlet conduit.
Claim 5
Dependent Claim 45 words
The apparatus of claim 1 in which the means for providing moisture includes tray means disposed on the bottom, water in the tray means, and cooking dish means disposed in the tray means for receiving and holding food to be cooked in the microwave oven.
Claim 6
Dependent Claim 41 words
The apparatus of claim 4 in which the tray means includes a bottom and a plurality of ribs on the bottom for increasing the surface area for absorbing heat for heating the water to provide moisture for the food being cooked.
Claim 7
Dependent Claim 43 words
The apparatus of claim 5 in which the cooking dish means includes a bottom platform disposed on the ribs, a stem extending upwardly from the bottom platform, a dish bottom secured to the stem, and dish walls extending upwardly from the dish bottom.
Claim 8
Dependent Claim 59 words
The apparatus of claim 4 in which the cooking dish means includes a bottom platform disposed in the water in the tray means, a stem secured to the bottom platform and extending upwardly from the water in the tray means, a dish bottom secured to the stem, and dish walls secured to the dish bottom and extending upwardly thereon.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1997-05-23 1997-11-22 1998-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2001-05-23 2001-11-22 2002-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2005-05-23 2005-11-22 2006-05-24 $7700.00 Window Closed / Lapsed

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