Patent US4137832A successfully refreshed from Google Patents.
US4137832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Whistling coffee pot
Assignee: Individual
•
Filing: 1978-05-05
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Granted: 1979-02-06
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Expires: 1998-05-05
Abstract
Abstract A coffee maker that provides both a visual and audible indication of the progress of coffee making. The coffee pot spout has a whistle disposed on its end, the whistle may be removable and/or the coffee may be poured directly through passageways in the whistle. A knob of non-conductive material is provided on the end of the whistle to facilitate removal. The centrally extending basket supporting tube in the coffee pot extends upwardly into a transparent material dome on the coffee lid. A screen is provided at the bottom of the tube, and a screen is disposed in the lid, securely mounting the tube in position. The basket is mounted on the tube so that it is normally immersed in water in the pot during normal operation.
Inventors
- 👤 Emanuel E. Lambros
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:41
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/21; A47J27/212; A47J31/00; A47J31/18; A47J31/20
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
160 words
A coffee maker comprising a pot having a closed bottom, a circumferentially continuous sidewall, and an open top, a handle extending from the sidewall, a spout extending from a portion of the side wall opposite the handle, a lid for closing the open top, and including a dome of transparent material located centrally in the lid, a tube supported by a hollow base, the tube being of a length such that when the tube base is disposed on the pot bottom, supporting the tube, the top of the tube extends into the dome of transparent material, and said tube having a basket supporting manifestation formed thereon, a basket having a tubular central portion with a diameter only slightly greater than the tube diameter, and a perforated continuous side wall and a perforated bottom, and whistle means disposed on said spout for indicating when boiling of water in said pot has been initiated by audibly releasing built-up steam from said pot.
Claim 2
Dependent Claim
160 words
A coffee maker comprising a pot having a closed bottom, a circumferentially continuous sidewall, and an open top, a handle extending from the sidewall, a spout extending from a portion of the side wall opposite the handle, a lid for closing the open top, and including a dome of transparent material located centrally in the lid, a tube supported by a hollow base, the tube being of a length such that when the tube base is disposed on the pot bottom, supporting the tube, the top of the tube extends into the dome of transparent material, and said tube having a basket supporting manifestation formed thereon, a basket having a tubular central portion with a diameter only slightly greater than the tube diameter, and a perforated continuous side wall and a perforated bottom, and whistle means disposed on said spout for indicating when boiling of water in said pot has been initiated by audibly releasing built-up steam from said pot.
Claim 3
Dependent Claim
35 words
A coffee maker as recited in claim 1 further including means for mounting said whistle means to said spout so that it is readily removable, including a nonheat conductive knob formed on said whistle means.
Claim 4
Dependent Claim
16 words
A coffee maker as recited in claim 2 wherein said mounting means comprises a rubber gasket.
Claim 5
Dependent Claim
30 words
A coffee maker as recited in claim 1 wherein said whistle means includes passageways therein for allowing pouring of liquid through said spout with said whistle mounted on said spout.
Claim 6
Dependent Claim
69 words
A coffee maker as recited in claim 1 wherein said whistle means comprises a metallic hollow cap having an open bottom, closed top, and means defining at least one opening in a side portion thereof; a plate disposed in said cap adjacent said cap opening; and means defining a restricted opening in said plate directly adjacent said cap opening, steam passing through said restricted opening causing a whistling sound.
Claim 7
Dependent Claim
27 words
A coffee maker as recited in claim 5 further comprising a grasping knob of heat nonconductive material formed on the closed top of said metallic hollow cap.
Claim 8
Dependent Claim
44 words
A coffee maker as recited in claim 5 wherein means defining a pair of openings in opposite side portions of said hollow cap are provided, and means defining a pair of opposite restricted openings in said plate directly adjacent said cap openings are provided.
Claim 9
Dependent Claim
23 words
A coffee maker as recited in claim 1 further comprising a screen disposed on the bottom of said tube adjacent the tube base.
Claim 10
Dependent Claim
54 words
A coffee maker as recited in claim 1 or claim 8 further comprising a liquid filtering screen formed in said lid and having means defining an opening therein for snug receipt of said tube to hold said tube in place extending into said transparent dome, with the top of the tube above said screen.
Claim 11
Dependent Claim
23 words
A coffee maker as recited in claim 1 wherein said tube base has a plurality of openings formed around the bottom periphery thereof.
Claim 12
Dependent Claim
45 words
A coffee maker as recited in claim 1 wherein said basket forming manifestation is formed on said tube closer to the bottom of said tube than to the top of the tube, and so that the basket will be immersed in water during normal operation.
Claim 13
Dependent Claim
41 words
A coffee maker as recited in claim 1 or claim 4 further comprising means for venting the pot during pouring, said means comprising means defining an opening in said lid, and manually operated means for selectively covering or uncovering said opening.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |