Reinforced elastomeric diaphragm
AssigneeHoneywell International Inc.
InventorsDavid Pantier, Todd Garrod, John Vasquez, Paul Banta, Dave Tornquist
Life of this patent
Estimating the term…
Abstract
A diaphragm is provided that includes a plurality of zonal portions that define reinforced and non-reinforced areas of the diaphragm. A first zonal portion extends from a marginal edge portion toward a central portion and is formed of a fabric material. A second zonal portion extends from the first zonal portion toward the central portion and is formed of an elastomer. A third zonal portion defines the central portion and is formed of a fabric material. The combination of reinforced and non-reinforced portions provides for a decrease in the radial tension (spring rate) of the diaphragm and helps prevent undesired changes to the flow control valve flow setpoint.
Claims20
A diaphragm comprising:
- a first portion extending inwardly from a marginal edge portion toward a central portion, the first portion comprising a reinforced material;
- a second portion coupled to the first portion and extending inwardly from the first portion toward the central portion, the second portion comprising a non-reinforced material;
- and
- a third portion coupled to the second portion and defining the central portion, the third portion comprising a reinforced material.
A diaphragm comprising:
- a first zonal portion extending inwardly from a marginal edge portion toward a central portion, the first zonal portion comprising a fabric material;
- a second zonal portion coupled to the first zonal portion and extending inwardly from the first zonal portion toward the central portion, the second zonal portion comprising an elastomer;
- and
- a third zonal portion coupled to the second zonal portion and defining the central portion, the third zonal portion comprising a fabric material.
A reinforced elastomeric diaphragm comprising:
- a first portion extending inwardly from a marginal edge portion toward a central portion, the first portion defining a reinforced first zone comprising a fabric material including a plurality of yarns in a woven pattern, wherein the plurality of yarns of the fabric material are formed of at least one of a polyamide (nylon), a fiberglass, or a polyester;
- a second portion coupled to the first portion and extending inwardly from the first portion toward the central portion, the second portion defining a non-reinforced second zone comprising an elastomer of at least one of a silicone, a fluorosilicone, or a fluorocarbon;
- and
- a third portion coupled to the second portion and defining the central portion and a reinforced third zone comprising a fabric material including a plurality of yarns in a woven pattern, wherein the plurality of yarns of the fabric material are formed of at least one of a polyamide (nylon), a fiberglass, or a polyester.
Dependencies are inferred from the claim text.