Patent US3721176A successfully refreshed from Google Patents.
US3721176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Beverage brewing apparatus
Assignee: Individual
•
Filing: 1971-04-15
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Granted: 1973-03-20
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Expires: 1991-04-15
Abstract
Abstract Beverage brewing apparatus of the character having a container for water and a basket to contain ground coffee. It also includes a flow stem supporting the basket, at the lower end of which there is an electrically actuated pump operable to cause fluid to flow upwardly through the flow tube and spill over into the basket. Suitable means is provided for heating the water to brew the coffee or to re-heat same.
Inventors
- 👤 M Logan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:18
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/04; A47J31/053
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
70 words
In an automatic beverage brewing apparatus, the combination of a base, a container for beverage grounds and water removably seated on said base in thermal contact therewith, a high wattage heater element in said base, an electric reciprocating pump in said container for delivering hot water to the beverage grounds for brewing the beverage, a low wattage heater element in said base, and automatic temperature control means for said heaters.
Claim 2
Dependent Claim
70 words
In an automatic beverage brewing apparatus, the combination of a base, a container for beverage grounds and water removably seated on said base in thermal contact therewith, a high wattage heater element in said base, an electric reciprocating pump in said container for delivering hot water to the beverage grounds for brewing the beverage, a low wattage heater element in said base, and automatic temperature control means for said heaters.
Claim 3
Dependent Claim
20 words
The apparatus recited in claim 1, in which thermostatic switch means is provided in the circuit to the electric pump.
Claim 4
Dependent Claim
24 words
The apparatus recited in claim 1, in which manual switch means opens the circuit to the pump when the low wattage heater is on.
Claim 5
Dependent Claim
25 words
The apparatus recited in claim 1, in which means is provided to open the circuit to the pump when a predetermined water temperature is attained.
Claim 6
Dependent Claim
32 words
The apparatus recited in claim 1, in which a basket is provided in the container for the beverage grounds and the pump has flow communication with said basket through a flow tube.
Claim 7
Dependent Claim
30 words
The apparatus recited in claim 1 in which the electric circuit to said heaters includes a tip switch adapted to be closed when the container is seated on said base.
Claim 8
Dependent Claim
56 words
In an automatic beverage apparatus including a water container having a bottom wall, a well in said bottom wall, an electrically driven pump in said well, said pump including a magnetically actuated reciprocating piston, and a flow tube associated with said pump and adapted to receive liquid delivered to it from the container by said pump.
Claim 9
Dependent Claim
56 words
In an automatic beverage apparatus including a water container having a bottom wall, a well in said bottom wall, an electrically driven pump in said well, said pump including a magnetically actuated reciprocating piston, and a flow tube associated with said pump and adapted to receive liquid delivered to it from the container by said pump.
Claim 10
Dependent Claim
34 words
The apparatus recited in claim 7, in which the pump includes a stationary element spaced from the bottom end of the flow tube and seated in said well, and between which the piston reciprocates.
Claim 11
Dependent Claim
41 words
The apparatus recited in claim 7, wherein the reciprocating piston is contained in a stationary hollow care, and an electro-magnet is arranged around said core and is operable to impart reciprocation to said piston when alternating electric current is applied thereto.
Claim 12
Dependent Claim
20 words
The apparatus recited in claim 9, in which a permanent magnet is associated with the electro-magnet and surrounds the core.
Claim 13
Dependent Claim
16 words
The apparatus recited in claim 7, in which the flow tube and pump are integrally connected.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |