US2840507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice making machine
Assignee: Whirlpool Corp
•
Filing: 1952-12-12
•
Granted: 1958-06-24
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Expires: 1972-12-12
Abstract
No abstract record available.
Inventors
- 👤 Dudley E Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:54
CPC Classifications
F; F25; F25C; F25C1/00; F25C1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A AUTOMATIC ICE MAKING MACHINE OF THE TYPE IN WHICH LIQUID IS FROZEN INTO ICE IN REPEATED CYCLES AS GOVERNED BY A CONTROL MEANS OPERABLE RESPONSIVE TO A CONDITION RELATED TO THE FORMATION OF ICE, A COOLING ELEMENT, AN ICE MOLD IN HEAT EXCHANGE RELATION TO THE COOLING ELEMENT AND HAVING GRID WALLS DIVIDING THE MOLD INTO INDIVIDUAL CELLS, A PLURALITY OF SAID GRID WALLS BEING CONSTRUCTED FOR PROGRESSIVE MOVEMENT RELATIVE TO EACH OTHER AND AT LEAST ONE WALL BEING MOUNTED FOR BODILY MOVEMENT MECHANISM CONNECTED TO PROGRESSIVELY MOVE THE PLURALITY OF WALLS RELATIVE TO EACH OTHER TO LOOSEN THE INDIVIDUAL ICE PIECES FROZEN IN THE CELLS AND THEREAFTER
Claim 2
Dependent Claim
110 words
IN A AUTOMATIC ICE MAKING MACHINE OF THE TYPE IN WHICH LIQUID IS FROZEN INTO ICE IN REPEATED CYCLES AS GOVERNED BY A CONTROL MEANS OPERABLE RESPONSIVE TO A CONDITION RELATED TO THE FORMATION OF ICE, A COOLING ELEMENT, AN ICE MOLD IN HEAT EXCHANGE RELATION TO THE COOLING ELEMENT AND HAVING GRID WALLS DIVIDING THE MOLD INTO INDIVIDUAL CELLS, A PLURALITY OF SAID GRID WALLS BEING CONSTRUCTED FOR PROGRESSIVE MOVEMENT RELATIVE TO EACH OTHER AND AT LEAST ONE WALL BEING MOUNTED FOR BODILY MOVEMENT MECHANISM CONNECTED TO PROGRESSIVELY MOVE THE PLURALITY OF WALLS RELATIVE TO EACH OTHER TO LOOSEN THE INDIVIDUAL ICE PIECES FROZEN IN THE CELLS AND THEREAFTER
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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) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |