Two-layered hat
US4921141A · kind A · utility
14Cited by
11References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 13, 1985 |
| Grant date | May 1, 1990 |
| Priority date | — |
| Expiry date | Dec 13, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25D2400/26
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A multi-layered hat is disclosed for storing a dispensable fluid therein. The hat comprises upper and lower layers of material interconnected to form a fluid retaining cavity therebetween. A discharge port and ventilation port are formed in the surface of the layers to facilitate discharge of the beverage to a fluid conduit, the other end of which may be placed in the mouth of the user. A thermal exchange unit, such as a frozen refrigerant encased in non-toxic plastic material, is disposed substantially within the cavity, and is adapted to transfer thermal energy between the refrigerant and the fluid stored in the cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.