Tapered ball valve
First Claim
Patent Images
1. A tapered ball valve comprising:
- (a) a valve body having an inner wall defining a valve chamber said chamber having annular inlet and outlet flow openings;
(b) valve seat insert means disposed with said valve chamber, said insert means having a first leg with an inner wall that is coplanar with the inner wall of the body and a second leg that extends outwardly from said valve chamber into its respective flow opening;
(c) sealing means located at the angle enclosed by said first and second legs and between said insert means and said valve body to insure complete sealing of the valve;
(d) valve seat means mounted within said valve seat insert means;
(e) a ball valve member operably disposed within said valve seat means for rotation between flow enabling and flow disabling positions; and
(f) closure means attachable to said valve body to seal said valve chamber and hold said valve seat insert, valve seat and plug valve member in assembled positions.
4 Assignments
0 Petitions
Accused Products
Abstract
A tapered plug valve having a body with a removable valve seat insert that can be replaced without removing the valve body from the operating site.
-
Citations
3 Claims
-
1. A tapered ball valve comprising:
-
(a) a valve body having an inner wall defining a valve chamber said chamber having annular inlet and outlet flow openings; (b) valve seat insert means disposed with said valve chamber, said insert means having a first leg with an inner wall that is coplanar with the inner wall of the body and a second leg that extends outwardly from said valve chamber into its respective flow opening; (c) sealing means located at the angle enclosed by said first and second legs and between said insert means and said valve body to insure complete sealing of the valve; (d) valve seat means mounted within said valve seat insert means; (e) a ball valve member operably disposed within said valve seat means for rotation between flow enabling and flow disabling positions; and (f) closure means attachable to said valve body to seal said valve chamber and hold said valve seat insert, valve seat and plug valve member in assembled positions. - View Dependent Claims (2, 3)
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeM&FC Holding, LLC (Xylem, Inc.)
-
Original AssigneeRockwell International Corporation
-
InventorsDittmer, Howard R., Kaniut, Christopher P.
-
Primary Examiner(s)Chambers, A. Michael
-
Assistant Examiner(s)Fox, John C.
-
Application NumberUS07/149,284Time in Patent Office376 DaysField of Search251/181, 251/184, 251/312, 251/315, 251/316, 137/240US Class Current251/181CPC Class CodesF16K 5/0636 the spherical plug being in...
