(19)

(11)

EP 0 550 685 A1

(12)

(43) Date of publication: 14.07.1993 Bulletin 1993/28 (21) Application number: 91919327.0 (22) Date of filing: 27.09.1991

(51) International Patent Classification (IPC):  C10M 107/ 00( . ) F16C 33/ 24( . ) C10N 20/ 06( . ) C10N 50/ 08( . ) F16C 33/ 20( . ) F16C 33/ 28( . ) C10N 40/ 02( . ) (86) International application number: PCT/US1991/007129 (87) International publication number: WO 1992/005955 (16.04.1992 Gazette 1992/09)

(84) Designated Contracting States: DE ES FR GB IT (30) Priority: 28.09.1990 US 19900589763 (71) Applicant: THE BENTLEY-HARRIS MANUFACTURING COMPANY Lionville, PA 19353 (US)	(72) Inventors: KITE, Joseph, Sellers, III Carefree, AZ 95377 (US) Tresslar, Marie C. Jeffersonville, PA 19403 (US) (74) Representative: Crux, John Anthony, et al  Bowdon House Ashburton Road West Trafford Park Manchester M17 1RA Manchester M17 1RA (GB)