Patent US4573329A successfully refreshed from Google Patents.
US4573329A
Expired / Lapsed
US
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Machine for making ice-cream and similar cold products, with a removable freezing container
Assignee: SIMAC SpA - MACCHINE ALIMENTARI VIA GARIBALDI N 20 CAPITAL LIRAS
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Filing: 1984-11-26
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Granted: 1986-03-04
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Expires: 2004-11-26
Abstract
Abstract A machine for making ice-cream and similar cold products is described, which has a freezing container insertable in and removable from a substantially cylindrical cooling chamber. The chamber is elastically-deformable and has a circular cross-section that is not completely closed on itself due to the presence of a passage. The passage is closed by a pair of shields and by a substantially bellows portion of elastically yielding and thermally insulating material. In this manner, a better thermal efficiency of the machine is obtained.
Inventors
- 👤 Alfredo Cavalli
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:44
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/08; A23G9/12; F; F25; F25D; F25D31/00; F25D31/006
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
143 words
A machine for making ice-cream and similar cold products, comprising: a cooling chamber formed by a substantially cylindrical cooling coil, said coil being formed by a plurality of lengths of tubing connected together in series by means of two manifold bodies which are spaced apart in a circumferential direction and define an axially extending passage therebetween, a substantially cylindrical elastic sheath, with an axially extending discontinuity facing said axially extending passage, externally surrounding said cooling coil, a freezing container insertable in and removable from said cooling chamber, two plate-like shields each secured to a respective manifold body and circumferentially projecting towards one another in said axially extending passage, a layer of elastically yielding and thermally insulating material interposed between said cooling coil and said elastic sheath, said layer including a bellows portion extending inside said passage between said plate-like shields and said sheath.
Claim 2
Dependent Claim
143 words
A machine for making ice-cream and similar cold products, comprising: a cooling chamber formed by a substantially cylindrical cooling coil, said coil being formed by a plurality of lengths of tubing connected together in series by means of two manifold bodies which are spaced apart in a circumferential direction and define an axially extending passage therebetween, a substantially cylindrical elastic sheath, with an axially extending discontinuity facing said axially extending passage, externally surrounding said cooling coil, a freezing container insertable in and removable from said cooling chamber, two plate-like shields each secured to a respective manifold body and circumferentially projecting towards one another in said axially extending passage, a layer of elastically yielding and thermally insulating material interposed between said cooling coil and said elastic sheath, said layer including a bellows portion extending inside said passage between said plate-like shields and said sheath.
Claim 3
Dependent Claim
27 words
A machine according to claim 1 wherein said manifold bodies are rigidly connected to said sheath and to said layer of elastically yielding and thermally insulating material.
Claim 4
Dependent Claim
21 words
A machine according to claim 1 wherein said lengths of tubing of the cooling coil are substantially quadrangular in cross section.
Claim 5
Dependent Claim
19 words
A machine according to claim 1, wherein said cooling coil and said shields are lined with a metal skin.
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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) | 1989-03-03 | 1989-09-02 | 1990-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-03 | 1993-09-02 | 1994-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-03 | 1997-09-02 | 1998-03-04 | $7700.00 | Window Closed / Lapsed |