(19)
(11)
EP 0 158 661 A1
(12)
(43)
Date of publication:
23.10.1985
Bulletin 1985/43
(21)
Application number:
84903594.0
(22)
Date of filing:
20.09.1984
(51)
International Patent Classification (IPC):
F02B
21/
00
( . )
F02B
75/
04
( . )
F02F
3/
28
( . )
F02B
21/
02
( . )
F02F
3/
26
( . )
(86)
International application number:
PCT/US1984/001487
(87)
International publication number:
WO 1985/001313
(
28.03.1985
Gazette 1985/08)
(84)
Designated Contracting States:
DE FR GB SE
(30)
Priority:
23.09.1983
US 19830535337
(71)
Applicant:
SONEX RESEARCH INC.
Annapolis, MD 21401 (US)
(72)
Inventor:
POURING, Andrew, A.
Edgewater, MD 21037 (US)
(74)
Representative:
Boyes, Kenneth Aubrey, et al
Frank B. Dehn & Co. Imperial House 15-19 Kingsway
London WC2B 6UZ
London WC2B 6UZ (GB)
(54)
PISTON FOR I.C. ENGINE