US4945824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cappuccino making adapter for use with coffee makers
Assignee: Robert Krups GmbH and Co KG
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Filing: 1989-06-02
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Granted: 1990-08-07
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Expires: 2009-06-02
Abstract
Abstract An adapter having an elastic body with a first inlet for the discharge end of a steam-supplying conduit, a second inlet for the discharge end of an air-supplying pipe, a mixing chamber into which air drawn by pressurized steam which is supplied by the conduit, and an outlet which discharges the mixture of air and steam into a supply of milk to thereby foam the milk so that foamed milk can be used as a topping for regular coffee or espresso coffee. The discharge end of the pipe and/or the discharge end of the conduit is held in the respective inlet exclusively by friction to facilitate ready separation of the body of the adapter. The intake end of the air-supplying pipe carries an elastic cap with one or more channels which supply atmospheric air into the pipe when the conduit supplies pressurized steam. The cap is removed prior to cleaning of the pipe and of the body of the adapter if the body is cleaned jointly with the pipe.
Inventors
- 👤 Michael Borgmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:26
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/44; A47J31/4489; Y; Y10; Y10S; Y10S261/00; Y10S261/16; Y10S261/76
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
67 words
For use with a coffee making machine having a steam-supplying conduit, a cappuccino making adapter comprising an elastic body immersible into a supply of milk and having a steam-admitting first inlet directly connectable with the steam-supplying conduit, an air-admitting second inlet, a chamber which communicates with said inlets for the establishment of a steam-air mixture, and an outlet for discharging the mixture into the supply of milk.
Claim 2
Dependent Claim
67 words
For use with a coffee making machine having a steam-supplying conduit, a cappuccino making adapter comprising an elastic body immersible into a supply of milk and having a steam-admitting first inlet directly connectable with the steam-supplying conduit, an air-admitting second inlet, a chamber which communicates with said inlets for the establishment of a steam-air mixture, and an outlet for discharging the mixture into the supply of milk.
Claim 3
Dependent Claim
43 words
The structure of claim 1, for use with a coffee making machine having a steam-supplying conduit with a steam-discharging end portion, wherein said body includes a portion surrounding said first inlet and dimensioned to sealingly receive the end portion of the steam-supplying conduit.
Claim 4
Dependent Claim
41 words
The structure of claim 2, further comprising an air-supplying second conduit having an intake end and a discharge end, said body having a second portion surrounding said second inlet and dimensioned to sealingly receive the discharge end of said second conduit.
Claim 5
Dependent Claim
18 words
The structure of claim 3, further comprising a removable closure for the intake end of said second conduit.
Claim 6
Dependent Claim
21 words
The structure of claim 4, wherein said closure includes an elastic cap which surrounds the intake end of said second conduit.
Claim 7
Dependent Claim
26 words
The structure of claim 5, wherein said closure has at least one channel which establishes communication between the atmosphere and the interior of said second conduit.
Claim 8
Dependent Claim
16 words
The structure of claim 1, wherein said body consists of a single piece of elastomeric material.
Claim 9
Dependent Claim
42 words
The structure of claim 1, wherein said body has a first end face and a second end face opposite said first end face, said inlets being provided in said first end face and said outlet being provided in said second end face.
Claim 10
Dependent Claim
35 words
The structure of claim 8, wherein said body has an end wall between said chamber and said first end face-and a sidewall surrounding said chamber and said outlet, said inlets extending through said, end wall.
Claim 11
Dependent Claim
28 words
The structure of claim 9, wherein said end wall has a first thickness and said sidewall has a second thickness which is a fraction of said first thickness.
Claim 12
Dependent Claim
21 words
The structure of claim 9, wherein said sidewall tapers in a direction from said end wall toward said second end face.
Claim 13
Dependent Claim
27 words
The structure of claim 1, further comprising a substantially straight air-supplying second conduit having an intake end and a discharge end sealingly received in said second inlet.
Claim 14
Dependent Claim
14 words
The structure of claim 12, wherein said second conduit is a piece of pipe.
Claim 15
Dependent Claim
63 words
The structure of claim 1 for use with a coffee making machine having a conduit for supplying pressurized steam, further comprising a second conduit having an intake end and a discharge end sealingly received in said second inlet to admit into said chamber atmospheric air which is drawn into said intake end as a result of admission of pressurized steam into said chamber.
Claim 16
Dependent Claim
26 words
The structure of claim 1, wherein the cross-sectional area of one of said inlets is greater than the cross-sectional area of the other of said inlets.
Claim 17
Dependent Claim
23 words
The structure of claim 1, wherein the cross-sectional area of said outlet is greater than the cross-sectional area of one of said inlets.
Claim 18
Dependent Claim
33 words
The structure of claim 1, wherein said inlets are adjacent one another and said outlet is located at a level beneath said inlets when said body is immersed into a supply of milk.
Claim 19
Dependent Claim
25 words
The structure of claim 1, wherein said body includes an end wall adjacent said chamber and having two substantially parallel through holes constituting said inlets.
Claim 20
Dependent Claim
26 words
The structure of claim 1, wherein said first inlet is located opposite said outlets and said second inlet is adjacent one side of said first inlet.
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) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |