US4735191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Musical teakettle apparatus
Assignee: MUSIKETTLE Inc
•
Filing: 1987-02-05
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Granted: 1988-04-05
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Expires: 2007-02-05
Abstract
Abstract A device primarily for attachment to the spout of a teakettle for generating a musical signal in response to the vapor pressure of boiling water. A diaphragm distorts in response to the pressure and closes an electrical switch which applies battery voltage to a circuit in which a representation of a pre-selected tune is stored. The tune is applied to a piezoelectric speaker within a resonating housing to audibly signal the user that the water in the teakettle is boiling.
Inventors
- 👤 Pierre G. Boursse
- 👤 Bill Grau
- 👤 Anton Gattiher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:41
CPC Classifications
A; A47; A47J; A47J27/00; A47J27/21; A47J27/212
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
118 words
An improved apparatus of the type adapted to fit over the spout or to be integrated into the spout or other orifice of a teakettle and to respond to the vapor pressure of boiling liquid within the teakettle by generating an audible sound to warn the user of the boiling condition of the liquid, the improvement comprising: means in the spout of the apparatus for storing an electrical representation of a selected audible signal; and actuator means mounted to a diaphragm and the storing means, said actuator means coacting with the diaphragm in said apparatus and responsive to said vapor pressure for applying a voltage of a power source to said storing means for generating said audible signal.
Claim 2
Dependent Claim
118 words
An improved apparatus of the type adapted to fit over the spout or to be integrated into the spout or other orifice of a teakettle and to respond to the vapor pressure of boiling liquid within the teakettle by generating an audible sound to warn the user of the boiling condition of the liquid, the improvement comprising: means in the spout of the apparatus for storing an electrical representation of a selected audible signal; and actuator means mounted to a diaphragm and the storing means, said actuator means coacting with the diaphragm in said apparatus and responsive to said vapor pressure for applying a voltage of a power source to said storing means for generating said audible signal.
Claim 3
Dependent Claim
14 words
The improvement recited in claim 1 wherein said audible signal is a musical tune.
Claim 4
Dependent Claim
48 words
The improvement recited in claim 1 wherein said actuator means comprises a switch actuator, the diaphragm being flexible and positioned relative to said spout for axial distortion in response to said vapor pressure, said distortion being sufficient to at least momentarily depress said actuator for applying said voltage.
Claim 5
Dependent Claim
53 words
The improvement recited in claim 1 further comprising a housing for containing said storing means and said actuator means, said housing having an apertured chamber for resonating said audible sound; and a base member adapted to fit snugly over said spout and to provide a physical interface between said spout and said housing.
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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) | 1991-04-05 | 1991-10-05 | 1992-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-05 | 1995-10-05 | 1996-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-05 | 1999-10-05 | 2000-04-05 | $7700.00 | Window Closed / Lapsed |