US3767169A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic ice-cream machine
Assignee: Individual
•
Filing: 1972-01-18
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Granted: 1973-10-23
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Expires: 1992-01-18
Abstract
Abstract The helical blade stirrer of an automatic ice-cream machine is as is customary located for rotation in the refrigerating can to be tangential thereto so as to scrape the side of the can. To accommodate deformation of points on the side of the can without permanent re-location of the helical blade the bearing for the end of the blade shaft which is located in the can is arranged to float radially in its housing and is maintained in the housing by resilient annular means such as rubber rings interposed between the housing and the periphery of the bearing.
Inventors
- 👤 P Carpigiani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:40
CPC Classifications
A; A23; A23G; A23G9/00; A23G9/04; A23G9/08; A23G9/10; A23G9/103; A23G9/106; A47; A47J; A47J43/00; A47J43/04; A47J43/07; A47J43/0705; B; B01; B01F; B01F27/00; B01F27/23; B01F27/231; B01F27/2312; B01F27/232; B01F27/2322; B01F27/80; B01F27/85; B01F27/92; B01F29/00; B01F29/80; B01F29/83; B01F35/00; B01F35/40; B01F35/41; B01F35/411; B01F35/4111; B01F35/30; B01F2035/35; B01F2035/352; B01F27/05; B01F27/09; B01F27/091
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
107 words
In an automatic ice-cream machine including a rotatable can and a rotatable shaft one end of which extends into the can and carries a can wall-scraping helical blade, and a mounting for said one end of the helical blade shaft, the improvement wherein said mounting Comprises a mounting member carried by a fixed part of the machine, a bearing seated in a housing formed in the mounting member and arranged to be movable in a radial direction relative to its seating, and resilient means interposed between the housing and the outer periphery of the bearing to maintain the helical blade in scraping relation with the can wall.
Claim 2
Dependent Claim
107 words
In an automatic ice-cream machine including a rotatable can and a rotatable shaft one end of which extends into the can and carries a can wall-scraping helical blade, and a mounting for said one end of the helical blade shaft, the improvement wherein said mounting Comprises a mounting member carried by a fixed part of the machine, a bearing seated in a housing formed in the mounting member and arranged to be movable in a radial direction relative to its seating, and resilient means interposed between the housing and the outer periphery of the bearing to maintain the helical blade in scraping relation with the can wall.
Claim 3
Dependent Claim
14 words
A mounting according to claim 1, wherein the resilient means comprises a rubber sleeve.
Claim 4
Dependent Claim
26 words
A mounting according to claim 1, wherein the resilient means comprises at least two rings of circular cross-section made of soft rubber or similar resilient material.
Claim 5
Dependent Claim
27 words
A mounting according to claim 3, wherein the housing includes at least one radially inwardly directed annular rib forming annular grooves in which the rings are located.
Claim 6
Dependent Claim
29 words
A mounting according to claim 4, wherein the nature of the resilient means is such as to permit radial movements of the bearing of the order of 1 millimeter.
Claim 7
Dependent Claim
29 words
A mounting according to claim 1, wherein the nature of the resilient means is such as to permit radial movements of the bearing of the order of 1 millimeter.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-22 | 1977-04-23 | 1977-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-22 | 1981-04-23 | 1981-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-22 | 1985-04-23 | 1985-10-23 | $7700.00 | Window Closed / Lapsed |