US4463572A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soft ice cream machine
Assignee: ROYALE INTERNATIONAL BEVERAGE COMPANY A CORP OF IA
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Filing: 1982-11-19
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Granted: 1984-08-07
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Expires: 2002-11-19
Abstract
Abstract The front wall of a freezing barrel supports a rod-like projection extending into the inner area of the freezing chamber. Such rod-like projection is hollow and encloses a temperature sensor to directly measure the temperature of the mix being frozen. The rod-like projection also provides partial pivotal support for a mixing blade in the freezing chamber. The machine includes a temperature readout on a front panel thereof with plus or minus readings and also includes a fill light on such panel designating when fill material is to be added. A dial is also provided for precise setting of the temperature of the freezing chamber by specific degrees.
Inventors
- 👤 E. Vernon Brown, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:18
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/22; A23G9/228; A23G9/08; A23G9/12; A23G9/28
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
206 words
A soft ice cream machine comprising a freezing barrel having front, rear and enclosing side walls with an interior surface defining a freezing and mixing chamber, an inlet adjacent the rear wall of said freezing barrel for admitting mix into said chamber, an outlet valve in the front wall of said freezing barrel for dispensing ice cream, mixing means in said barrel for mixing said ice cream and forcing it from said outlet valve, a cooling chamber associated with at least a portion of said freezing barrel, refrigerating means associated with said cooling chamber for cooling the freezing barrel, and temperature sensing means supported on said front wall controlling the operation of said refrigerating means to cause operation of the latter at a selected sensing temperature, said temperature sensing means comprising a hollow rod-like projection with inner and outer end portions and enclosing a sensor, said projection leading from its inner end portion from said front wall with its outer end portion extending into said freezing and mixing chamber whereby to be embedded in ice cream for direct influence of the ice cream on said sensor, said outer end portion of the rod-like projection of said temperature sensing means providing partial support for said mixing means.
Claim 2
Dependent Claim
206 words
A soft ice cream machine comprising a freezing barrel having front, rear and enclosing side walls with an interior surface defining a freezing and mixing chamber, an inlet adjacent the rear wall of said freezing barrel for admitting mix into said chamber, an outlet valve in the front wall of said freezing barrel for dispensing ice cream, mixing means in said barrel for mixing said ice cream and forcing it from said outlet valve, a cooling chamber associated with at least a portion of said freezing barrel, refrigerating means associated with said cooling chamber for cooling the freezing barrel, and temperature sensing means supported on said front wall controlling the operation of said refrigerating means to cause operation of the latter at a selected sensing temperature, said temperature sensing means comprising a hollow rod-like projection with inner and outer end portions and enclosing a sensor, said projection leading from its inner end portion from said front wall with its outer end portion extending into said freezing and mixing chamber whereby to be embedded in ice cream for direct influence of the ice cream on said sensor, said outer end portion of the rod-like projection of said temperature sensing means providing partial support for said mixing means.
Claim 3
Dependent Claim
233 words
A soft ice cream machine comprising a freezing barrel having front, rear and enclosing side walls with an interior surface defining a freezing and mixing chamber, an inlet adjacent the rear wall of said freezing barrel for admitting mix into said chamber, an outlet valve in the front wall of said freezing barrel for dispensing ice cream, at least one mixing blade in said barrel for mixing said ice cream and forcing it from said outlet valve, a cooling chamber associated with at least a portion of said freezing barrel, refrigerating means associated with said cooling chamber for cooling the freezing barrel, and temperature sensing means supported on said front wall controlling the operation of said refrigerating means to cause operation of the latter at a selected sensing temperature, said temperature sensing means comprising a hollow rod-like projection with inner and outer end portions and enclosing a sensor, said projection leading from its inner end portion from said front wall with its outer end portion extending into said freezing and mixing chamber whereby to be embedded in ice cream for direct influence of the ice cream on said sensor, said mixing blade having opposite end portions with one end portion thereof provided with horizontal axis pivot support on said rear wall of said freezing barrel and the other end portion thereof having pivot support on the rod-like projection of said temperature sensing means.
Claim 4
Dependent Claim
233 words
A soft ice cream machine comprising a freezing barrel having front, rear and enclosing side walls with an interior surface defining a freezing and mixing chamber, an inlet adjacent the rear wall of said freezing barrel for admitting mix into said chamber, an outlet valve in the front wall of said freezing barrel for dispensing ice cream, at least one mixing blade in said barrel for mixing said ice cream and forcing it from said outlet valve, a cooling chamber associated with at least a portion of said freezing barrel, refrigerating means associated with said cooling chamber for cooling the freezing barrel, and temperature sensing means supported on said front wall controlling the operation of said refrigerating means to cause operation of the latter at a selected sensing temperature, said temperature sensing means comprising a hollow rod-like projection with inner and outer end portions and enclosing a sensor, said projection leading from its inner end portion from said front wall with its outer end portion extending into said freezing and mixing chamber whereby to be embedded in ice cream for direct influence of the ice cream on said sensor, said mixing blade having opposite end portions with one end portion thereof provided with horizontal axis pivot support on said rear wall of said freezing barrel and the other end portion thereof having pivot support on the rod-like projection of said temperature sensing means.
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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) | 1987-08-07 | 1988-02-06 | 1988-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-07 | 1992-02-06 | 1992-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-07 | 1996-02-06 | 1996-08-07 | $7700.00 | Window Closed / Lapsed |