DUST TRAP VALVE WITH REMOVABLE DOUBLE-LIFE DOOR AND VALVE SEAT MEMBER - Patent 0067150

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EP 0 067 150 A1

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(43)	Date of publication:
	22.12.1982 Bulletin 1982/51

(21)	Application number: 81901378.0

(22)	Date of filing: 22.12.1980

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International Patent Classification (IPC):

C22B 1/ 20^{( . )}
F16K 1/ 20^{( . )}
F27B 21/ 06^{( . )}

F16K 1/ 16^{( . )}
F16K 43/ 00^{( . )}

(86)	International application number:
	PCT/US1980/001700

(87)	International publication number:
	WO 1982/002237 (08.07.1982 Gazette 1982/17)

(84)	Designated Contracting States:
	DE FR GB

(71)	Applicant: O'CONNELL, Patrick M. Sr. Administrator of the Estate of O'CONNELL, Stephen R.(deceased)
	Cadyville, NY 12918 (US)

(74)	Representative: Gregory, Timothy Mark, et al
	Urquhart-Dykes & Lord Midsummer House 411C Midsummer Boulevard Central Milton Keynes MK9 3BN Central Milton Keynes MK9 3BN (GB)

(54)	DUST TRAP VALVE WITH REMOVABLE DOUBLE-LIFE DOOR AND VALVE SEAT MEMBER