Heat exchange panels
Abstract
Abstract 916,296. Heating and cooling appliances. YAT CHUEN YUEN. July 21, 1961, No. 26533/61. Class 81 (2). [Also in Groups XIII and XIV] A heat exchanger for circulating hot or cold medium, incorporated in an article of clothing and made of rubber or synthetic resin such as nylon, has at least one passage 17, 18 closed at each end and filled with a non-circulating fluid, for withstanding external pressure. The heat exchanger may comprise a grid of ducts interconnecting side headers, Figs. 1-3 (not shown); closed-end ducts forming the non-circulating passages extend from header to header alternating with the circulating ducts. As shown, a single circulating duct 14, with an inlet 15 and an outlet 16, zig-zags along the heat exchanger and back on itself parallel with the outgoing portion. A closed-end duct 18 extends from one end of the heat exchanger to the other, parallel between the outgoing and return portions of the circulating duct 14. A surrounding closed-end duct 17 extends up one side, across an end and back down the other side with branches 17<SP>2</SP> extending into the spaces between the zig-zags of the circulating duct 14.
Inventors
- 👤 Yuen Yat Chuen
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |