Stephen J Chorney

US Patent:

6681791, Jan 27, 2004

Filed:

Sep 26, 2002

Appl. No.:

10/256158

Inventors:

Stephen Chorney - Laurys Station PA
Richard Linton Samsal - Chandler AZ
Stanley Louis Morton - Phoenix AZ
Peter Joseph Kielhofner - Chandler AZ
Todd Jeffrey Siegfried - Chandler AZ
Thomas Anderson - Peoria AZ

Assignee:

Air Products and Chemicals, Inc. - Allentown PA

International Classification:

F16K 3700

US Classification:

137 1501, 137266, 137553, 137555, 137559

Abstract:

Valve assembly comprising a valve base, a valve bonnet attached thereto, a rotatable valve stem extending coaxially through the valve bonnet, a rotatable valve handle attached to the valve stem and having a plane of rotation which is generally perpendicular to the axis of the valve stem, and an indicator tab attached to the valve base or the valve bonnet and extending outward from the valve body or valve bonnet in a direction generally parallel to the plane of rotation of the valve handle. The rotatable valve handle can be disposed in at least a first position and a second position, wherein the rotatable handle when disposed in the first position renders the indicator tab invisible when viewed in a direction generally perpendicular to the plane of rotation of the valve handle, and wherein the rotatable handle when disposed in the second position renders the indicator tab visible when viewed in a direction generally perpendicular to the plane of rotation of the valve handle.