Patent US3811494A successfully refreshed from Google Patents.
US3811494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ice cream machine
Assignee: IREKS GmbH
•
Filing: 1972-08-10
•
Granted: 1974-05-21
•
Expires: 1992-08-10
Abstract
Abstract A device for the preparation and dispensing of soft ice cream, sherbert or flavored ice has two spacially separated and distinct chambers connected by means of elongated supply tubes, one chamber serving as a storage container in which refrigerating, heating, and sterilizing functions are carried out, and the other serving as a freezing and dispensing container.
Inventors
- 👤 W Menzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:19
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/20; A23G9/22; A23G9/28; A23G9/281; A23G9/30; A23G9/305
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
247 words
A device for the preparation and dispensing of soft ice in individual portions, comprising: a storage container means for receiving the soft ice mix; cooling means including a cooling coil connected to said storage container means for cooling the soft ice mix stored therein; a freezing and dispensing container means, located at any predetermined distance or spatial relationship with regard to said storage container means for receiving the soft ice mix from said storage container means and for freezing and dispensing the soft ice, said freezing and dispensing container means comprising a supply chamber and a freezing chamber; a lead-in tube passing from the bottom of said storage container means to said supply chamber; a return tube passing from said supply chamber to the top of said storage container means; first pump means for at least periodically pumping the soft ice mix from said storage container means through said lead-in tube to said supply chamber; second pump means for at least periodically pumping the soft ice mix from said supply chamber through said return tube to said storage container means; first heating means connected to said freezing and dispensing container means for heating the contents thereof to a predetermined extent when desired; second heating means connected to said storage container supply means for heating the contents thereof to a predetermined extent when desired; and compressed gas means for feeding compressed gas into the interior of both said storage container means and said freezing and dispensing container means.
Claim 2
Independent Claim
247 words
A device for the preparation and dispensing of soft ice in individual portions, comprising: a storage container means for receiving the soft ice mix; cooling means including a cooling coil connected to said storage container means for cooling the soft ice mix stored therein; a freezing and dispensing container means, located at any predetermined distance or spatial relationship with regard to said storage container means for receiving the soft ice mix from said storage container means and for freezing and dispensing the soft ice, said freezing and dispensing container means comprising a supply chamber and a freezing chamber; a lead-in tube passing from the bottom of said storage container means to said supply chamber; a return tube passing from said supply chamber to the top of said storage container means; first pump means for at least periodically pumping the soft ice mix from said storage container means through said lead-in tube to said supply chamber; second pump means for at least periodically pumping the soft ice mix from said supply chamber through said return tube to said storage container means; first heating means connected to said freezing and dispensing container means for heating the contents thereof to a predetermined extent when desired; second heating means connected to said storage container supply means for heating the contents thereof to a predetermined extent when desired; and compressed gas means for feeding compressed gas into the interior of both said storage container means and said freezing and dispensing container means.
Claim 3
Dependent Claim
22 words
A device in accordance with claim 1 wherein said lead-in tube and return tube are embedded in a housing of insulating material.
Claim 4
Dependent Claim
24 words
A device in accordance with claim 1 wherein said storage container means is located below the level of said freezing and dispensing container means.
Claim 5
Dependent Claim
42 words
A device in accordance with claim 1 wherein the function of said first and second heating means is to heat the contents of said freezing and dispensing container means and said storage container means to a temperature sifficient to pasteurize said contents.
References Cited (Backward Citations)
US2896421A
Cited
US3285331A
Cited
US3402562A
Cited
US3369376A
Cited
US3654770A
Cited
US3643454A
Cited
US3665722A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |