(19)

(11)

EP 0 157 772 A1

(12)

(43) Date of publication: 16.10.1985 Bulletin 1985/42 (21) Application number: 83903693.0 (22) Date of filing: 17.10.1983

(51) International Patent Classification (IPC):  E04C 3/ 07( . ) E04C 3/ 04( . ) (86) International application number: PCT/US1983/001627 (87) International publication number: WO 1985/001768 (25.04.1985 Gazette 1985/10)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (71) Applicant: LOWE, Colin F. Houston, TX 77035 (US)	(72) Inventor: LOWE, Colin F. Houston, TX 77035 (US)