Roll-in open-front frozen food refrigeration case
US4117697A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1977 |
| Grant date | Oct 3, 1978 |
| Priority date | — |
| Expiry date | Jan 31, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47F3/0452
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A commercial refrigerator, having an open front display section and a rear storage section in which first air circulating fans draw air from the storage section and propells it through refrigeration coils to a bifurcated conduit for which directs at least some refrigerated air propelled by the first fans through the refrigeration coils along a first path directly into the storage section and for directing other refrigerated air propelled by the first fans through the coils along a second path directly across the open front of the display section to form an inner air curtain; return fans are provided for directing the downstream end of the inner air curtain along the floor of the display section and into the storage section; a second set of air circulating fans are provided in a further conduit for directing air around the exterior of the storage and display sections and across the access opening to form an outer air curtain; and a divider is provided which separates the display and storage sections, the divider containing an access opening for communicating the storage and display sections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.