The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 1990
Filed:
Oct. 27, 1989
Pekka J Kivipelto, Helsinki, FI;
Neles Oy, Helsinki, FI;
Abstract
A valve, which consists of a housing (1) provided with a through flow duct (2); of a closing member (3), which is shaped as a body of revolution or as a part of such body, which has been placed into the housing through an opening (7) provided on the housing, and which is fitted in the through flow duct turnably or rotably; of sealing members (5,6) fitted between the closing member (3) and the housing (1); of a cover (8) that covers the opening (7) in the housing as pressure-proof; of locking and sealing members (9,10,14) for locking and sealing the cover (8) on the housing (1); as well as of sealing members (22) for sealing the turning shaft (21) of the closing member. The cover (8) is supported against the pressure force by means of a stop face (12) placed at the circumference of the opening (7) on the housing and facing towards the interior of the housing. The cover (8) is locked on the housing (1) by means of an annular auxiliary cover (14) fitted outside the cover, said auxiliary cover being attached detachably both to the housing (1) and to the cover (8) and being provided with sealing members (17,18) both between the auxiliary cover (14) and the housing (1) and between the auxiliary cover (14) and the cover (8).