US4987746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for transferring water from a container to a refrigerator ice maker
Assignee: Individual
•
Filing: 1989-08-04
•
Granted: 1991-01-29
•
Expires: 2009-08-04
Abstract
Abstract Water is pumped from a container to a refrigerator ice maker and/or chilled water unit. The apparatus for transferring the water includes a motor operated pump, and the motor is connected directly to a timer within the refrigerator. The timer controls the flow of water to the ice maker by controlling the pump so that the pump operates only when the ice maker (and/or chilled water unit) calls for the water. A check valve may be disposed in the pumped water line between the pump and the water source to prevent loss of pressure in the line due to the bleeding of pressure through the pump.
Inventors
- 👤 Mark J. Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:16
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/22; F25C1/25
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
143 words
Apparatus for providing water to a refrigerator, comprising, in combination: a refrigerator; ice maker means within the refrigerator for providing ice cubes; conduit means for connecting an unpressurized external source of water to the ice maker means; first electrical means in the refrigerator for providing electrical current in the refrigerator; timer means connected to the first electrical means for providing current for a predetermined length of time; means for actuating the timer means in response to the demand for water from the ice maker means; pump means connected to the conduit means for providing a flow of water from the external source to the ice maker means; and second electrical means in the refrigerator for connecting the first electrical means to the pump means through the timer means for providing an electric current to the pump means for a predetermined length of time.
Claim 2
Dependent Claim
143 words
Apparatus for providing water to a refrigerator, comprising, in combination: a refrigerator; ice maker means within the refrigerator for providing ice cubes; conduit means for connecting an unpressurized external source of water to the ice maker means; first electrical means in the refrigerator for providing electrical current in the refrigerator; timer means connected to the first electrical means for providing current for a predetermined length of time; means for actuating the timer means in response to the demand for water from the ice maker means; pump means connected to the conduit means for providing a flow of water from the external source to the ice maker means; and second electrical means in the refrigerator for connecting the first electrical means to the pump means through the timer means for providing an electric current to the pump means for a predetermined length of time.
Claim 3
Dependent Claim
33 words
The apparatus of claim 1 in which the conduit means includes valve means connected to the timer means for controlling the flow of water from the external source to the ice maker means.
Claim 4
Dependent Claim
25 words
The apparatus of claim 1 in which the pump means further includes check valve means for preventing water from flowing backwardly through the pump means.
Claim 5
Dependent Claim
39 words
The apparatus of claim 1 in which the first electrical means includes an electrical outlet, and the second electrical means includes a plug adapted to be connected to the electrical outlet for providing electric current to the pump means.
Claim 6
Dependent Claim
26 words
The apparatus of claim 1 in which the conduit means includes a solenoid controlled valve connected to the timer means for controlling the flow of water.
References Cited (Backward Citations)
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Cited
US3459005A
Cited
US3541806A
Cited
US4750472A
Cited
US4597270A
Cited
US4815941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-01-28 | 1994-07-30 | 1995-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-28 | 1998-07-30 | 1999-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-28 | 2002-07-30 | 2003-01-29 | $7700.00 | Window Closed / Lapsed |