ued on Feb. 27, 1979 employ a U-shaped resilient clip which is secured on the coffee cup rim. Mark E. Zimmermann in U.S. Pat. No. 4,626,435 issued on Dec. 2, 1986 makes use of a foaming agent to promote agitation and the infusion of water. In prior art the hot water was either added to the container in which the ground coffee bean bag was placed or heat was used to bring the water in the container and the coffee bean bag to a higher temperature in order to facilitate the extraction of the coffee bean flavor in a reasonable period of time. This invention discloses a device which takes into consideration the differential absorption of microwave energy by the water, by the ground coffee beans, by the handling and support element, and by the container; encompassing a device which yields a hot mug of coffee that can be drunk immediately upon removal from the microwave oven due to the fact that the mug containing the coffee does not reach a high temperature whilst the brewed liquid is piping hot.SUMMARY OF THE INVENTION
A premeasured ground coffee bean amount is contained in a totally enclosed filter bag. The said filter bag being a component part of the disposable brewing device described in this disclosure.
It has been discovered that a flavorful coffee drink may be brewed inside a microwave oven by the means of this disposable brewing device. The disposable brewing device, subsequently to be fully described, is placed inside a coffee mug; then an amount of drinking water is added. The mug is then placed inside a microwave oven where within a short period of time the coffee flavor is extracted. The coffee grounds contained within the filter bag absorb microwaves efficiently as a result water in contact with the coffee grounds begins to boil first, the filter bag begins to inflate due to water vapor and the gases which emanate from the coffee grounds. Inside the mug the water that is outside the filter bag begins to show color indicating that water is flowing in and out of the filter bag. As more microwave energy is absorbed the water in the mug begins to boil and a pleasant aroma of coffee emanates from the microwave oven. When the microwave oven turns off, the filter bag deflates rapidly. The mug may be removed, it's temperature being only slightly warm; then the disposable brewing device may be removed and discarded since the handle of the disposable brewing device is so designed as to absorb very little microwave energy. The length of time needed to brew a mug of coffee is dependent upon the initial water temperature, very short periods may be obtained if one begins the process with very hot water. Using this invention, the above method for brewing is the preferred one; however, sensible heat may be added by means such as a hot plate or a open flame.
Included in the objects of this invention are: To provide a disposable coffee brewing device for individually brewing a single mug of coffee, the coffee grounds being at all times kept submerged in water. To provide a disposable coffee brewing device for brewing a piping hot mug of coffee which may be consumed without discomfort due to a overly heated drinking mug. To provide a disposable coffee brewing device which in addition to having a primary utility inside a microwave oven nonetheless retains function with equal facility by other means of heat infusion. To provide a disposable coffee brewing device which when placed inside a microwave oven brews a tasteful mug of coffee in a short period of time and does so unattended.BRIEF DESCRIPTION OF THE DRAWINGS
The description of this invention is to be read in conjunction with the following drawings.
FIG. 1 illustrates a perspective view of the embodiment of a disposable coffee brewing device.
FIG. 2 illustrates a method of use wherein the disposable coffee brewing device is held inside a mug which contains water.DESCRIPTION OF THE PREFERRED EMBODIMENT OF THE INVENTION
The invention will now be described by referring to a preferred embodiment. In FIG. 1, a bag 10 made out of a filtering material of suitable porosity contains wit