Excess flow valve with flexible sealing member
AssigneeBrassCraft Manufacturing Company
InventorsJesus R. Dominguez, Joseph P. Schutte, David C. Tisch, Ronald D. Green, Timothy D. Mulligan
Life of this patent
Estimating the term…
Abstract
An assembly for limiting excess flow includes a seat that provides a sealing surface and a diaphragm that is coupled to the seat. The diaphragm includes a seal portion and at least one leg extending between the seal portion and the seat. The seal portion is spaced apart from the sealing surface during normal flow conditions and is in engagement with the sealing surface when a predetermined flow condition is exceeded.
Claims20
An assembly for limiting excess flow comprising:
- a seat providing a sealing surface;
- and
- a diaphragm coupled to the seat, the diaphragm including a seal portion and at least one leg extending between the seal portion and the seat, and wherein the seal portion is spaced apart from the sealing surface during normal flow conditions and is in engagement with the sealing surface when a predetermined flow condition is exceeded.
An assembly for limiting excess flow comprising:
- a fitting having an internal bore defined by a first diameter;
- a seat positioned within the internal bore, the seat providing a sealing surface;
- and
- a diaphragm coupled to the seat, the diaphragm including a seal portion and a plurality of legs extending between the seal portion and the seat, and wherein the seal portion is spaced apart from the sealing surface during normal flow conditions and is in engagement with the sealing surface when a predetermined flow condition is exceeded.
A method of forming an excess flow valve comprising:
- forming first and second fitting pieces;
- connecting the first and second fitting pieces together to define an internal bore;
- coupling a diaphragm having a seal portion to a seat with a plurality of legs such that the seal portion is moveable relative to the seat;
- and
- fixing the seat within the internal bore.
Dependencies are inferred from the claim text.