(19)

(11)

EP 0 271 518 A1

(12)

(43) Date of publication: 22.06.1988 Bulletin 1988/25 (21) Application number: 87903514.0 (22) Date of filing: 24.04.1987

(51) International Patent Classification (IPC):  E06B 3/ 66( . ) E06B 3/ 64( . ) E06B 3/ 54( . ) (86) International application number: PCT/US1987/000937 (87) International publication number: WO 1987/006644 (05.11.1987 Gazette 1987/24)

(84) Designated Contracting States: AT BE CH DE FR GB IT LI LU NL SE (30) Priority: 28.04.1986 US 19860856816 (71) Applicant: MIDLAND GLASS COMPANY Merriam, KS 66203 (US)	(72) Inventor: GALBRAITH, Darrell, L. Overland Park, KS 66204 (US) (74) Representative: Alexander, Thomas Bruce, et al  Boult, Wade & Tennant 27 Furnival Street London EC4A 1PQ London EC4A 1PQ (GB)