US4177652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Refrigeration system
Assignee: Individual
•
Filing: 1978-01-03
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Granted: 1979-12-11
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Expires: 1998-01-03
Abstract
Abstract A refrigeration system for a catering truck includes a reservoir of ice cubes. A food compartment is provided for storing food under refrigeration and includes a cooling section adjacent thereto. Ice cubes are fed from the reservoir to the cooling section. A blower circulates cool air from the cooling section through the food compartment.
Inventors
- 👤 Lawrence C. Volk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:45
CPC Classifications
F; F25; F25D; F25D3/00; F25D3/02; F25D3/06; B; B60; B60H; B60H1/00; B60H1/00007; B60H1/00014; B60H1/32; B60H1/3235; B60P; B60P3/00; B60P3/025; B60P3/0257; B60P3/20; F25D2303/00; F25D2303/08; F25D2303/081; Y; Y02; Y02A; Y02A40/00; Y02A40/90; Y02A40/963
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
102 words
In combination, a refrigeration system and a catering truck comprising: a reservoir for ice cubes; a food compartment for storing food under refrigeration having a cooling section adjacent thereto; means for gravity feeding ice from said reservoir to said cooling section through an aperture interconnection; a blower for directing air through an intake pipe to said cooling section and then circulating cooled air from said cooling section through said food compartment; and an exhaust pipe interconnecting said food compartment and said blower for recirculating air in said food compartment to said blower drain means for removing ice melt from the cooling section.
Claim 2
Dependent Claim
102 words
In combination, a refrigeration system and a catering truck comprising: a reservoir for ice cubes; a food compartment for storing food under refrigeration having a cooling section adjacent thereto; means for gravity feeding ice from said reservoir to said cooling section through an aperture interconnection; a blower for directing air through an intake pipe to said cooling section and then circulating cooled air from said cooling section through said food compartment; and an exhaust pipe interconnecting said food compartment and said blower for recirculating air in said food compartment to said blower drain means for removing ice melt from the cooling section.
Claim 3
Dependent Claim
40 words
A refrigeration system for a catering truck in accordance with claim 1 wherein said reservoir bottom is angled enabling said ice cubes to move by gravity towards said aperture, the aperture bottom edge being aligned with said reservoir bottom wall.
Claim 4
Dependent Claim
32 words
A refrigeration system in accordance with claim 2 wherein said cooling section has a lower wall below said aperture enabling said ice cubes to fall from said aperture into said cooling section.
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) | 1982-12-10 | 1983-06-11 | 1983-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-12-10 | 1987-06-11 | 1987-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-12-10 | 1991-06-11 | 1991-12-11 | $7700.00 | Window Closed / Lapsed |