US3926414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice-box
Assignee: Etud SA
•
Filing: 1974-01-02
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Granted: 1975-12-16
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Expires: 1994-01-02
Abstract
Abstract The invention relates to an electrical domestic appliance for making ice creams and water ices in a refrigerator. The appliance according to the invention comprises a space between the motorreducer block and the inner wall of the tank, and openings formed in the flattened edge onto which fits said motor-reducer block so that the cold ambient air is able to circulate freely between the inner wall of the tank and the wall of the motor-reducer block. An aural and/or optical alarm arranged on the power cable or in the plug by which the power cable is connected to the mains indicates that the mixer blades have been removed and/or that the motor has stopped. The alarm is set off by a bimetallic element which is deformable under the action of the heat released by the motor.
Inventors
- 👤 Pierre Tanguy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:47
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/08; A23G9/12; A23G9/22; A23G9/228
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
94 words
In an appliance for making water ices and the like having a motor, an electrical circuit for said motor including a power cable extending from said appliance, reduction gearing and retractable mixing blades driven by said motor, the improvement comprising: means responsive to retraction of said blades to open said circuit to said motor and connect said circuit to an alarm device, said alarm device being in said power cable and in a position therein remote from said motor whereby it may be positioned externally of the region in which said appliance is located.
Claim 2
Dependent Claim
94 words
In an appliance for making water ices and the like having a motor, an electrical circuit for said motor including a power cable extending from said appliance, reduction gearing and retractable mixing blades driven by said motor, the improvement comprising: means responsive to retraction of said blades to open said circuit to said motor and connect said circuit to an alarm device, said alarm device being in said power cable and in a position therein remote from said motor whereby it may be positioned externally of the region in which said appliance is located.
Claim 3
Dependent Claim
23 words
An appliance as claimed in claim 1, wherein the alarm is incorporated in a plug for connecting the power cable to the mains.
Claim 4
Dependent Claim
45 words
An appliance as claimed in claim 1, wherein a heat-deformable bimetallic strip is in intimate contact with a constituent part of the motor which is heated by the magnetic induction effects inherent in motors fed with alternating current and arranged to condition said responsive means.
Claim 5
Dependent Claim
46 words
An appliance as claimed in claim 1, wherein a movable pinion of the reduction gearing is displaced under the effect of the reaction torque due to the resistance offered to the mixer blades by the preparation in the course of freezing to actuate said responsive means.
Claim 6
Dependent Claim
19 words
An appliance as claimed in claim 4, wherein the displacement of the pinion takes place tangentially of said pinion.
Claim 7
Dependent Claim
25 words
An appliance as claimed in claim 4, wherein the displacement of the pinion takes place axially of said pinion by using a helically toothed coupling.
Claim 8
Dependent Claim
50 words
An appliance as claimed in claim 3, wherein the mobile armature of a circuit breaker incorporated in the electrical circuit of said alarm device in the motor feed circuit is actuated by either the displacement of said bimetallic element or by the displacement of a gear of said reduction gearing.
References Cited (Backward Citations)
US2139576A
Cited
US2808706A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-15 | 1979-06-16 | 1979-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-15 | 1983-06-16 | 1983-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-15 | 1987-06-16 | 1987-12-16 | $7700.00 | Window Closed / Lapsed |