Apparatus for brewing beverages
AssigneeEdgecraft Corporation
InventorsTom Long, Daniel Friel, James Fitzgerald, H. Busch
Life of this patent
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Abstract
An electrically heated water kettle comprises a vessel for holding a liquid for extraction of tea, coffee or other food material. The vessel includes a partially open immersible container sized to allow the passage of water between the walls of the vessel. The container is capable of holding the material while an opening in the container allows the entrance of water into the container upon immersion of the container in the water. The heated kettle incorporates structure to hold the container out of the water until the water reaches an appropriate extraction temperature and to immerse or withdraw the container into or from the water as is necessary to accomplish the extraction.
Claims19
An electrically heated liquid kettle comprising a vessel for holding a liquid for extraction of tea, coffee, or other food material, said vessel including a partially open immersible container sized to allow passage of liquid between the walls of said vessel, said container being capable of holding the material while providing an opening in said container to allow entrance of liquid therein upon immersion of said container in liquid, and said heated kettle incorporating structure to hold said container out of the liquid until the liquid reaches appropriate extraction temperature and to immerse or withdraw said container into or from liquid as necessary to accomplish said extraction.
An electrically heated liquid kettle comprising a vessel for holding a liquid for extraction of tea, coffee or other food material, an electric heater powered by an electrical controller to heat the liquid to a predetermined set temperature, a sensor to measure temperature of the liquid and create an electronic temperature signal corresponding to the temperature, an electrical processor to make a comparison of said set temperature with said temperature signal and to direct said electrical controller to apply varying amounts of power to said heater in response to said comparison.
An electrically heated liquid kettle comprising a vessel for holding a liquid for extraction of coffee, tea, or other food material, an electric heater to heat the liquid to a predetermined set temperature selected by the user, a visual indicator of said set temperature selected by the user, a precise electrical sensor of temperature of the liquid and an electrically powered visual or audible alarm that annunciates when said liquid temperature reaches said set temperature.
An electrically heated liquid kettle comprising a vessel for holding a liquid for extraction of tea, coffee or other food material, an electric heater powered by an electrical controller directed by an electrical processor to heat the liquid to a predetermined set temperature and to maintain the liquid at said set temperature, and a user actuated electrical control to initiate the brewing cycle time of the material.
An electrically powered heated liquid kettle comprising a lidded but unsealed vessel for holding a vaporizable liquid, a heater capable of heating the liquid in said vessel to the boiling temperature of the liquid at the prevailing atmosphere pressure, a sensor for measuring the temperature of the liquid or the temperature of the air/vapor mixture immediately above the liquid in said vessel and generating an electrical signal corresponding to said temperature, and an electrical processor to receive said signal and to analyze the rate of rise of said signal with the power applied to said heater as an indicator of boiling of said liquid when the measured temperature levels off and to cause the interruption or reduction of power to said heater.
An electrically powered heated kettle comprising a lidded but unsealed vessel for holding a vaporizable liquid, a heater capable of heating the liquid in said vessel to the boiling point of the liquid at the prevailing atmospheric pressure, an electrical control to preset the desired temperature of the liquid, an electrical signal processor directed by said electrical control to direct a controller of the flow of electrical power to said heater, an electrical sensor to generate an electrical signal proportioned to the temperature of the liquid or the air/vapor mixture directly above the liquid in said vessel as the liquid is heated by said heater to the boiling point, and to transmit said signal to said electrical processor, whereby said processor can determine therefrom when the liquid is boiling, to determine and store the exact value of temperature of said boiling point and to prevent the subsequent adjustment of said set desired temperature to any value above said boiling temperature as established by said processor.
An electrically heated covered liquid kettle comprising a vessel for holding a liquid material for the extraction of tea, coffee or other food material, the interior walls of said vessel being of nominally uniform internal dimensions along a major length of said vessel, a manually operated removable screen-like filter contacting and close fitting to said interior walls along said major length of said vessel, a manually operated partially open immersible container capable of holding the material spaced sufficiently apart from said walls to allow free passage of liquid between the walls of said vessel and said container, and one or more manually operated physical members extending through said cover used individually or interchangeably to hold said screen-like filter and said container above the liquid and to lower said filter and said container into the liquid.
Dependencies are inferred from the claim text.