Abstract: A method of brewing hot beverage with an electric hot beverage brewer (20) with a duty cycle modulated DC voltage dispense pump (44) with an inlet (46) connected to a de-aerator (24) and beneath a lower limit and an outlet (48) located above an upper limit the surface a hot water tank (22) is finely controlled by a high frequency pulse-width, modulated, square power input voltage (FIG. 2) with a duty cycle controlled in accordance with predetermined profiles stored within a controller (28) to selectively change the flow rate out of the pump onto a distribution dome (50) during a dispense period of a brew cycle to achieve optimum brewing of different types of beverage ingredients and varieties of the different types and to selectively change the spray pattern of hot water onto the ingredient (53) within the basket assembly (52) between vertical and acute angles including acute angles that pass hot water into a bypass gap (56).

Abstract: An electric hot beverage brewer (20) with a duty cycle modulated DC voltage dispense pump (44) with an inlet (46) connected to a de-aerator (24) and beneath a lower limit and an outlet (48) located above an upper limit the surface a hot water tank (22) is finely controlled by a high frequency pulse-width, modulated, square power input voltage (FIG. 2) with a duty cycle controlled in accordance with predetermined profiles stored within a controller (28) to selectively change the flow rate out of the pump onto a distribution dome (50) during a dispense period of a brew cycle to achieve optimum brewing of different types of beverage ingredients and varieties of the different types and to selectively change the spray pattern of hot water onto the ingredient (53) within the basket assembly (52) between vertical and acute angles including acute angles that pass hot water into a bypass gap (56).

Abstract: A beverage brewer housing (10) for passing hot water though a dry ingredient to create a freshly brewed beverage with a lower housing section (14) for protectively containing a hot water tank and an upper housing section (12) attached to and cantilever supported upon the lower housing section (14) having a rearward upper section open to the lower housing section (14) for protectively containing an upper part of the hot water tank and a forward upper section for containing temperature sensitive electronics. A closure plate (26) defines a floor for the forward upper section to support the electronics and an upwardly extending interior wall (27) thermally, protectively, separating the forward upper section from heat within the rearward upper section generated by the hot water tank.

Abstract: A method of controlling a hot beverage brewer (20) with an auto-directive brewer controller (22) that controls enabling and revealing of a plurality of hidden, or phantom, switches (39, 40, 42, 48, 50, 52, 54, 56, 58 and 60). Signals from disabled switches are ignored by a microcomputer (24), and the operator is directed to only the hidden switches that are enabled by selectively revealing them with individually associated backlights (39?, 40?, 42?, 48?, 50?, 54?, 56?, 58?, and 60?). When the backlights are energized the location of the hidden switches is revealed by the light passing through a dark, but semi-translucent, flexible, plastic control panel that overlies the hidden switches and their associated backlights. Different modes of normal operation may be preselected during a program mode (FIG.

Abstract: A grinder (30) has a toolessly attached ingredient hopper assembly (50) overlying a toolessly attached fixed grinding burr (134) defining the top of a grind chamber (158) within which is received a mating rotary grinding burr (150) that is slidably mounted to a rotary drive motor (154) for adjustment relative to the fixed grinding burr (134). Adjustment is achieved automatically by control of a stepper motor (168) that pushes on the end of an elongate control shaft (393) passing through a hollow rotary drive axle (392) and carrying the rotary grinding burr (150) at an opposite end. In a similar embodiment (FIG. 23), the non-rotary burr (314) is adjusted by movement of a control shaft (393) contained within a hollow motor axle (392). In other embodiments (FIGS. 17-22), a movable axle (304) of a movable rotor motor (300) and attached to the rotary burr (312) is moved to make the adjustments.

Abstract: A food grinder (10) makes a sound or vibrates with a frequency that changes between a first mode when the grinding mechanism (22, 24, 36) is performing a grinding operation while there is bulk food ingredient within the grinding chamber, and a second mode when the grinding mechanism (22, 24, 36) is performing a grinding operation while there is no bulk food ingredient within the grinding chamber, has a detector (44) for sensing the change in frequency and a controller (42) responsive to the detector (44) for controlling the application of electrical power to the grinding mechanism (22, 24 36). Power is first applied when a start grind switch is manually actuated and is later automatically removed in response to a timer (54) a preselected time period after the detector senses that the grinding chamber is empty of bulk food ingredient to be ground.

Abstract: Method of making a housing having wall panels (58, 60, 62 and 64) formed from a single, metallic work piece (50) by folding it at each of four locations defining corners all of which are spaced from opposite ends of the work piece (50) with at least one fold having an angle substantially different from a right angle and then securing together opposite ends (52, 54) of the work piece with a weld joint (56). As a result of bringing together the opposite ends, at least one of the panels curved in a stressed state and forms interior corner angles at opposite sides that are substantially different from a right angle. A closure base (48) is attached to the bottom of the wall assembly (44) to close and support the open bottom of the wall assembly (44), and as closure top (46) is attached an open top of the wall assembly (44).

Abstract: A spray distribution assembly (14) for a hot beverage brewer (10) with a spray head (20) having a generally vertical passageway (22) for receipt of hot water and an umbrella-like member (34) with an underlying spray plate (38) having a downwardly, outwardly tapered top surface with radiating, outwardly, downwardly directed, upwardly facing grooves and an upwardly standing central core (58) snuggly received within the passageway (22) joined to the underside of the top of the umbrella-like member (34) with a plurality of vertical radially, outwardly facing grooves (68) extending from the top to the bottom to form a plurality of peripheral closed channels for passing hot water to upwardly facing grooves (74) of the umbrella-like body. The umbrella-like spray plate assembly may be attached to a cup shaped spray housing (144) in lieu of a flat spray plate (142) by means of a mounting adapter (158).

Abstract: A dual-purpose brewer including a hot water dispenser system (25) for dispensing, hot water to a dispense outlet above a removable brew basket (18) with an electromagnetically controlled outlet drain valve (44) for selectively blocking beverage from leaving the brew basket (18) during a seeping period when making tea and leaves a drain hole (41) open throughout a brew cycle when making coffee. A drain plug (42) made of magnetic or ferromagnetic material is moved by an electromagnetic field to an open position (FIG. 6) to block a drain passageway (45) to drain the brew basket (18) of beverage and falls to a closed position (FIG. 5) during, a seeping period. Contact of electromagnetic coils (80, 82, 90) carried by the brew basket (18) with a source of energization is achieved through electrical contacts at the end of a. pivotally mounted actuation arm (34).

Abstract: A beverage warming assembly (8) with a non-ferromagnetic, transparent heat carafe (10) having an induction heating assembly (38) attached to the bottom (24) by a threaded fastener (46) formed of a generally planer, induction ferromagnetic heating element (42) with a top and a bottom, and an insulating member (44) interposed between the carafe bottom (24) and the bottom of the induction heating element (42) to thermally insulate the bottom (24) from he induction heating element (42), to enable relative movement between the induction heating element (42) and the bottom (24) and to seal a fastener hole (48) against leaks. Different levels of heating are achieved by connecting a high frequency voltage signal from a generator (64) to different inputs along the length of the coil induction coil (40) in response to actuation of heating level selection switches (59, 60, 62).

Abstract: An automated mixing drink dispenser (10) establishes a preselected feed rate of concentrate from a concentrate hopper (42) and ratio of concentrate to mixing water fed into a mixing chamber (42) through the Venturi effect created by swirling water fed into a mixing chamber (42) at a preselected water pressure (66) and preselected regulated flow rate (68) associated with the preselected feed rate of the concentrate. Concentrate is fed to a mixing chamber (42) from a concentrate hopper (42) having an open drain hole (50) openly connected to the mixing chamber (42). A stirring mechanism (106, 100, 101, 102, 104) mechanically mixes the concentrate within the concentrate hopper (42) to maintain a uniform density and viscosity and a gas pressure mechanism (92, 94, 96, 86) maintains a uniform head pressure of concentrate to facilitate maintenance of the preselected concentrate flow rate over time.

Abstract: A food ingredient grinder (30) having a grinding chamber (158) with an electrically powered grinding mechanism (130, 150, 154) has an ingredient hopper has a pivotally mounted cover (57) that is automatically moved between open and closed positions and a controller (202, 204, 208) responsive to a cover position sensor (81,82) failing to sense the cover in a closed position disables a start switch (212) from starting a grinding operation. The grinding chamber (156) is toolessly mounted to the top of a frame member (96) of the grinder to facilitate removal of the chamber for cleaning or replacement.

Abstract: A beverage brewer (10) having a housing (16, 30) with source of dispense water (37, 39) for mixing with beverage ingredient to produce a freshly brewed beverage has an electromagnet (76) mounted to the housing (30) and a brew basket assembly (32, 34) with a drain plug assembly (49) that is responsive to energization of the electromagnet (76) to actuate a drain plug assembly to move a drain plug (48) out of blocking engagement with a drain hole (61). The drain plug (48) is attached to a lower end of a plug support member (50) that has an upper magnetic responsive end (51) that is received within a hollow core of (54) of the magnet (76) when the brew basket assembly (32, 34) is toolessly mounted to by raising it into operative position where it is held by mating magnetic connectors (72, 74). During use, the elongate plug support member (50) is used as a handle to remove a filter assembly (60) for cleaning.

Abstract: A coffee brewer (10, 10? and 10?) is provided with a plurality of solenoid controlled, bi-position dispense valves (40, 40?), a size adjustable valve (60) or a combination of both and a programmable controller (18) for controlling the dispense valves in accordance with preselected brew parameters of batch quantity and dispense time duration.

Abstract: A hot beverage brewer (10) having a hot water dispense system (12), a brew basket assembly (18) for holding ingredient to be mixed with the hot water to make a freshly brewed hot beverage and a controller (16) for controlling the delivery of hot water from the hot water dispenser system to the brew basket (18) with a spray distribution assembly (14) having a spray head (20) having a generally vertical passageway (22) for receipt of hot water and an umbrella-like member (34).

Abstract: A food processing apparatus (20) such as a coffee brewer having functional elements (45) protectively contained with a housing assembly (43) composed off a wall assembly (44, 448, 44B) having wall panels (58,60,62 and 64) being formed from a single, thin-sheet, metallic work piece (50) that extend between corners (66,68,70 and 72) formed in the work piece by folding the work piece (50) at each of the corners with at least one fold having an angle substantially different from a right angle. After the corners are formed, opposite ends (52,54) of the work piece are aligned in abutting relationship at a location laterally spaced from all the plurality of corners and permanently welded together with a weld joint (56). As a result of bringing together the opposite ends, at least one of the panels is stressed into an arcuate shape and also forms interior corner angles at opposite sides that are substantially different from a right angle.

Abstract: A beverage dispenser (20) has a double-walled tubular, preferably cylindrical, sensor (22) that is immersed in liquid (23), such as coffee or tea, within an opaque, stainless steel container, or beverage dispenser (25) has a double-walled tubular sensor connected via two conductive paths (24, 26) to two inputs (28, 30), respectively, of a resistance measuring circuit (32) that measures the resistance between the two inputs (28, 30) to produce an electrical, direct current, resistance output signal that varies with changes in the instantaneous resistance between the two inputs (28, 30) The resistance output signal is connected to an input (34) of an electronic controller (40) The electronic controller (40) calculates the depth of the liquid (23) based on the magnitude of the resistance output signal applied to the input (34).

Abstract: An electrical beverage brewer (10) having a controller (26) responsive to a start switch (72) to operate a brew cycle by dispensing hot water from a tank (42) to beverage ingredient within a brew basket (38) through a bent tube (78) mounted to the water tank (42) for rotation about an axis aligned with an external horizontal rotary section (90) of the bent tube (78) between a closed position in which an inlet (80) of a swinging tubular section (79) is in a relatively elevated, closed position and an open position at a lower elevation relative to the closed position.

Abstract: A grinder (30) has a toolessly attached ingredient hopper assembly (50) overlying a toolessly attached fixed grinding burr (134) defining the top of a grind chamber (158) within which is received a mating rotary grinding burr (150) that is slidably mounted to a rotary drive motor (154) for adjustment relative to the fixed grinding burr (134). Adjustment is achieved automatically by control of a stepper motor (168) that pushes on the end of an elongate member (151) passing through a hollow rotary drive axle (152) and carrying the rotary grinding burr (150) at an opposite end.

Abstract: A French press-like quality high volume, electrical, automatic beverage brewer (10) with a rotatable mixing chamber (12) for mixing water (109) from a hot water tank (28) with dry beverage ingredient (108) having a closed top (7) and an open bottom (3, 66) to which is releasably mounted a brew basket (14) with an open top (19) for fluid communication with the mixing chamber (12) through the open bottom (3, 66). Before mounting, the brew basket (14) is loaded with a filter (105) and dry beverage ingredient (109). The mixing chamber (12) with the brew basket (14) attached is then automatically turned upside down (FIG. 6) to dump the dry beverage ingredient (109) out of the filter (105) and onto the closed top (7) of the rotatable mixing chamber (12). A preselected amount of water (109) is then infused into the mixing chamber (12) to a level beneath the open bottom (3) and filter (105) and onto the dry beverage ingredient (109) for mixing therewith.