PETER PAPPAS
Gas Fitter in Woburn, MA
License number
Massachusetts 1452
Expiration Date
May 1, 1994
Type
Master Gas Fitter
Address
Address
Woburn, MA 01801
Personal information
See more information about PETER PAPPAS at radaris.comName
Address
Phone
432 Foundry St, North Easton, MA 02356
4320 Harvest Dr, North Andover, MA 01845
424 Pinewood Dr, Longmeadow, MA 01106
51 Farley Ave, Ipswich, MA 01938
4 Blaisdell Ter, Ipswich, MA 01938
Professional information
See more information about PETER PAPPAS at trustoria.com
Irrigation System Shut-Off Valve
Irrigation System Shut-Off Valve
US Patent:
5617892, Apr 8, 1997
Filed:
Jul 31, 1995
Appl. No.:
8/509207
Inventors:
Peter J. Pappas - Woburn MA
International Classification:
F16K 1700
US Classification:
137360
Abstract:
An irrigation system shut-off valve includes first and second hollow housing sections with are threadedly connected by an elongated pipe so that all of the sections lie on a common axis. A valve seat and a valve member concentric to said axis are present in the second housing section, the valve member being movable between a closed position wherein the valve member seals against the valve seat and an open position wherein the valve member is spaced from the valve seat. The valve member is moved between its two positions by a shaft which extends from the valve member along the axis through the first housing section where it is threaded into an end wall of that housing section so that when the shaft is rotated in one direction, the valve member moves to its closed position and when the shaft is rotated in the opposite direction, the valve member moves to its open position so that water can flow from an inlet in the second housing section through the bridging section to an outlet in the first housing section without any appreciable pressure drop.