(19)
(11) EP 0 256 006 A1

(12)

(43) Date of publication:
24.02.1988 Bulletin 1988/08

(21) Application number: 86901608.0

(22) Date of filing: 10.02.1986
(51) International Patent Classification (IPC): 
F24D 3/ 08( . )
(86) International application number:
PCT/US1986/000291
(87) International publication number:
WO 1987/004781 (13.08.1987 Gazette 1987/18)
(84) Designated Contracting States:
BE FR GB IT

(30) Priority: 06.02.1986 US 19860826628

(71) Applicant: LAUDERDALE, Robert J.
Hayward, CA 94545 (US)

(72) Inventor:
  • LAUDERDALE, Robert J.
    Hayward, CA 94545 (US)

   


(54) HEATING EXCHANGE FOR POTABLE WATER