Gripping valve seat
AssigneeBermad Limited Partnership
InventorZvi Weingarten
Life of this patent
Estimating the term…
Abstract
The valve seat of the present invention is configured for attachment to the valve housing after the valve housing has been coated with a protective coating. The valve seat is configured to grip the valve housing, thereby providing a secure attachment. In its simplest form, the valve seat and the valve housing are both configured with corresponding locking-ring grooves, and a locking-ring element is positioned so as to be at least partially deployed in both the valve seat locking-ring groove and the valve housing locking-ring groove simultaneously. It will be appreciated that the features of the present invention may be used to benefit with substantially any type and style of valve known in the art.
Claims19
A valve seat configuration comprising:
- (a) a valve housing having an interface area configured with at least one valve housing locking groove, said valve housing locking groove including at least one sloping wall;
- (b) a valve seat body having a flow channel, an inner surface and an outer surface, said outer surface configured to contact said interface area, said outer surface configured with at least one valve seat locking groove circumscribing said valve seat body, said valve seat body including a plurality of spaced apart through bores passing radially through said valve seat body from said valve seat locking groove to said inner surface of said valve seat body, and a plurality of displacement elements inserted into said through bores through openings in said inner surface;
- and
- (c) at least one locking element configured for initial deployment in one of said valve seat locking groove and said valve housing locking groove;
- wherein outward radial displacement of said displacement elements from said inner surface toward said outer surface causes outward radial displacement of said locking element so as to be at least partially deployed in both said valve seat locking element groove and said valve housing locking element groove so as to contact said sloping wall so as to draw said valve seat body toward said valve housing, thereby attaching said valve seat to said valve housing.
A method for attaching a valve seat to a valve housing, the method comprising:
- (a) providing a valve housing having an interface area configured with at least one valve housing locking groove, said valve housing locking groove including at least one sloping wall;
- (b) providing a valve seat body having a flow channel, an inner surface and an outer surface, said outer surface configured to contact said interface area, said outer surface configured with at least one valve seat locking groove circumscribing said valve seat body, said valve seat body including a plurality of spaced apart through bores passing radially through said valve seat body from said valve seat locking groove to said inner surface of said valve seat body, and a plurality of displacement elements inserted into said through bores through openings in said inner surface;
- (c) providing at least one locking element configured for initial deployment in one of said valve seat locking groove and said valve housing locking groove;
- (d) providing at least one displacement element configured to outwardly radially displaced said locking element;
- and
- (e) said displacement element so as to outwardly radially displace said locking element so as to be at least partially deployed simultaneously in both said valve seat locking groove said valve housing locking groove so as to contact said sloping wall and thereby draw said valve seat body toward said valve housing.
Dependencies are inferred from the claim text.