(19)

(11)

EP 0 063 154 A1

(12)

(43) Date of publication: 27.10.1982 Bulletin 1982/43 (21) Application number: 81903023.0 (22) Date of filing: 15.10.1981

(51) International Patent Classification (IPC):  B66F 9/ 06( . ) B66F 9/ 075( . ) B66F 9/ 065( . ) B66F 9/ 10( . ) (86) International application number: PCT/US1981/001387 (87) International publication number: WO 1982/001363 (29.04.1982 Gazette 1982/11)

(84) Designated Contracting States: AT CH DE FR GB LI LU NL SE (30) Priority: 16.10.1980 US 19800197424 (71) Applicants: LUTZ, David E. Carlisle, PA 17013 (US) LUTZ, David W. Carlisle, PA 17013 (US)	(72) Inventors: LUTZ, David E. Carlisle, PA 17013 (US) LUTZ, David W. Carlisle, PA 17013 (US)