US4381696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave coffee making apparatus
Assignee: MIRRO Corp A CORP OF NJ
•
Filing: 1981-04-27
•
Granted: 1983-05-03
•
Expires: 2001-04-27
Abstract
Abstract A microwave coffee making apparatus (10), adapted for use in a microwave oven to heat water (66), has a water reservoir (12) with at least one aperture (49) near the bottom thereof, a coffee grounds basket (13) positioned to receive water from at least one water reservoir aperture (49), a pitcher (11) positioned to receive brewed coffee (17) from the coffee grounds basket (13), and a manually operated valve means (14) located adjacent the at least one water reservoir aperture (49) to control draining of the water reservoir (12) into the coffee grounds basket (13). To brew coffee (17) with this coffee making apparatus (10), the water reservoir (12) is filled with the desired amount of water (66), a measured amount of coffee grounds (37) is placed in the coffee grounds basket (13), the flow of water (66) from the water reservoir (12) is initiated by opening the valve (14), and microwave energy is applied to the coffee making apparatus (10) to heat the water. Preferably, the valve (14) has a plunger rod (51) positioned such that the mounting of a cover (67) on the reservoir (12) depresses the plunger rod (51) and opens the valve (14).
Inventors
- 👤 Joseph R. Koral
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:15
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/10; A47J31/106; A47J31/44; A47J31/54; A47J31/547
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
An apparatus for making coffee through the use of microwave energy, comprising: a water reservoir with at least one aperture near the bottom thereof; a coffee grounds basket having at least one drain hole therein and positioned to receive water from said water reservoir through said aperture; a pitcher positioned to receive brewed coffee from said drain hole in said coffee grounds basket; a cover removably mounted over said water reservoir; and valve means for controlling the flow of water through said aperture, said valve means being opened by said cover when said cover is mounted over said water reservoir.
Claim 2
Independent Claim
100 words
An apparatus for making coffee through the use of microwave energy, comprising: a water reservoir with at least one aperture near the bottom thereof; a coffee grounds basket having at least one drain hole therein and positioned to receive water from said water reservoir through said aperture; a pitcher positioned to receive brewed coffee from said drain hole in said coffee grounds basket; a cover removably mounted over said water reservoir; and valve means for controlling the flow of water through said aperture, said valve means being opened by said cover when said cover is mounted over said water reservoir.
Claim 3
Independent Claim
135 words
An apparatus for brewing coffee in a microwave oven, comprising: a water reservoir with at least one aperture near the bottom thereof; a coffee grounds basket having at least one drain hole therein and positioned to receive water from said reservoir through said aperture; a pitcher positioned to receive brewed coffee from said drain hole in said coffee grounds basket; a cover removably mounted over said water reservoir; a valve for controlling the flow of water through said aperture mounted in the bottom of said water reservoir adjacent said aperture; a plunger rod connected to and extending upwardly from said valve so that when said cover is mounted on said pitcher, said plunger rod is depressed, thereby opening the valve to permit gradual draining of water from the water reservoir into the coffee grounds basket.
Claim 4
Independent Claim
135 words
An apparatus for brewing coffee in a microwave oven, comprising: a water reservoir with at least one aperture near the bottom thereof; a coffee grounds basket having at least one drain hole therein and positioned to receive water from said reservoir through said aperture; a pitcher positioned to receive brewed coffee from said drain hole in said coffee grounds basket; a cover removably mounted over said water reservoir; a valve for controlling the flow of water through said aperture mounted in the bottom of said water reservoir adjacent said aperture; a plunger rod connected to and extending upwardly from said valve so that when said cover is mounted on said pitcher, said plunger rod is depressed, thereby opening the valve to permit gradual draining of water from the water reservoir into the coffee grounds basket.
Claim 5
Independent Claim
210 words
An apparatus for brewing coffee in a microwave oven, comprising: a water reservoir having a bottom wall defining a centrally positioned rod hole and a plurality of drain apertures surrounding the rod hole; a coffee grounds basket having strainer holes therein and positioned to receive water from said reservoir through said apertures; a pitcher positioned to receive brewed coffee from said strainer holes in said coffee grounds basket; a plunger rod having a first end portion extending through the water reservoir rod hole and a second end portion extending substantially vertically the height of the water reservoir; a plate mounted to the first end portion of said plunger rod, said plate defining a sealing surface for closing the drain holes; a coiled compression spring positioned around the plunger rod, said spring having a first end abutting the reservoir bottom wall and a second end abutting the rod, such that the sealing surface is urged toward the drain apertures by means of the force exerted by the compression spring; and a cover removably mounted over said water reservoir, and axially depressing said plunger rod when mounted such that said plate is moved away from said drain apertures, thereby permitting water to flow from said water reservoir into said coffee grounds basket.
Claim 6
Independent Claim
210 words
An apparatus for brewing coffee in a microwave oven, comprising: a water reservoir having a bottom wall defining a centrally positioned rod hole and a plurality of drain apertures surrounding the rod hole; a coffee grounds basket having strainer holes therein and positioned to receive water from said reservoir through said apertures; a pitcher positioned to receive brewed coffee from said strainer holes in said coffee grounds basket; a plunger rod having a first end portion extending through the water reservoir rod hole and a second end portion extending substantially vertically the height of the water reservoir; a plate mounted to the first end portion of said plunger rod, said plate defining a sealing surface for closing the drain holes; a coiled compression spring positioned around the plunger rod, said spring having a first end abutting the reservoir bottom wall and a second end abutting the rod, such that the sealing surface is urged toward the drain apertures by means of the force exerted by the compression spring; and a cover removably mounted over said water reservoir, and axially depressing said plunger rod when mounted such that said plate is moved away from said drain apertures, thereby permitting water to flow from said water reservoir into said coffee grounds basket.
Claim 7
Dependent Claim
27 words
The coffee making apparatus of claim 3 wherein the spring is made from stainless steel and the remaining elements of the apparatus are made from a polycarbonate.
Claim 8
Dependent Claim
24 words
The coffee making apparatus of claim 3 further comprising means for applying microwave energy to heat the water after said plunger has been depressed.
Claim 9
Dependent Claim
30 words
The coffee making apparatus of claims 1, or 3 further comprising means for applying microwave energy to the water, after the valve means has been opened for heating the water.
Claim 10
Dependent Claim
18 words
The coffee making apparatus of claims 1, 2, or 3 wherein the apparatus is substantially transparent to microwaves.
Claim 11
Independent Claim
211 words
An apparatus for brewing coffee in a microwave oven, comprising: a water reservoir having a bottom wall defining a centrally positioned rod hole and a plurality of drain apertures surrounding said rod hole; a coffee grounds basket having strainer holes therein and positioned to receive water from said reservoir through said apertures; a pitcher positioned to receive brewed coffee from said strainer holes in said coffee grounds basket; a plunger rod having a first end portion extending through said water reservoir rod hole and a second end portion extending substantially vertically for the height of said water reservoir; a plate mounted to the first end portion of said plunger rod, said plate defining a sealing surface for closing the drain holes; a coiled compression spring positioned around said plunger rod, said spring having a first end abutting the bottom wall of the reservoir and a second end abutting said plunger rod, such that the sealing surface is urged toward the drain apertures by the force exerted by the compression spring; a cover removably mounted over said water reservoir; and means for axially depressing said plunger rod such that said plate is moved away from said drain apertures, thereby permitting water to flow from said water reservoir into said coffee grounds basket.
Claim 12
Independent Claim
211 words
An apparatus for brewing coffee in a microwave oven, comprising: a water reservoir having a bottom wall defining a centrally positioned rod hole and a plurality of drain apertures surrounding said rod hole; a coffee grounds basket having strainer holes therein and positioned to receive water from said reservoir through said apertures; a pitcher positioned to receive brewed coffee from said strainer holes in said coffee grounds basket; a plunger rod having a first end portion extending through said water reservoir rod hole and a second end portion extending substantially vertically for the height of said water reservoir; a plate mounted to the first end portion of said plunger rod, said plate defining a sealing surface for closing the drain holes; a coiled compression spring positioned around said plunger rod, said spring having a first end abutting the bottom wall of the reservoir and a second end abutting said plunger rod, such that the sealing surface is urged toward the drain apertures by the force exerted by the compression spring; a cover removably mounted over said water reservoir; and means for axially depressing said plunger rod such that said plate is moved away from said drain apertures, thereby permitting water to flow from said water reservoir into said coffee grounds basket.
Claim 13
Dependent Claim
15 words
The coffee making apparatus of claim 8 wherein the apparatus is substantially transparent to microwaves.
Claim 14
Dependent Claim
24 words
The coffee making apparatus of claim 8 further comprising means for applying microwave energy to heat the water after said plunger has been depressed.
Claim 15
Dependent Claim
27 words
The coffee making apparatus of claim 8 wherein said spring is made from stainless steel and the remaining elements of the apparatus are made from a polycarbonate.
References Cited (Backward Citations)
CA574823A
Cited
US2601067A
Cited
US2978562A
Cited
US3333527A
Cited
US3333528A
Cited
US3384004A
Cited
US3405630A
Cited
US3672907A
Cited
US3628446A
Cited
US3589273A
Cited
US3570390A
Cited
US3590724A
Cited
US3844206A
Cited
US3902408A
Cited
US3920945A
Cited
US3974354A
Cited
US3996846A
Cited
US4104957A
Cited
US4132239A
Cited
US4190077A
Cited
US4158464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-02 | 1986-11-01 | 1987-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-02 | 1990-11-01 | 1991-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-02 | 1994-11-01 | 1995-05-03 | $7700.00 | Window Closed / Lapsed |