← Back to Patent Explorer
US3233662A Expired / Lapsed US ⏱️ 0.0 years remaining

Heat exchange panels

Assignee: Individual
•
Filing: 1962-07-17
•
Granted: 1966-02-08
•
Expires: 1982-07-17
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-22 20:06
CPC Classifications
A; A47; A47C; A47C21/00; A47C21/04; A47C21/048; F; F24; F24D; F24D3/00; F24D3/12; F24D3/14; F24D3/141; F24D3/142; F28; F28D; F28D9/00; F28D9/0087; F28F; F28F21/00; F28F21/06; F28F21/065; F28F21/066; Y; Y02; Y02B; Y02B30/00

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

US2255751A Cited
US2699325A Cited
US2719986A Cited
US2731652A Cited
US3112792A Cited
US2930594A Cited
US2978225A Cited
US2998817A Cited
US3030640A Cited
US3148391A Cited

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag