Bonnet apparatus to provide live-loading to a seal
AssigneeFisher Controls International LLC
InventorsRichard James Anagnos, Thomas Jeffrey Miller
Life of this patent
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Abstract
Bonnet apparatus to provide live-loading to a seal are described herein. An example bonnet assembly includes a housing having a recessed opening to define a shoulder and a sealing disc disposed within the recessed opening. A biasing element is disposed in the recessed opening between a flange of the sealing disc and the shoulder of the housing to provide a load to a seal to be disposed between the housing and the fluid device. The biasing element biases the sealing disc away from the housing and the biasing element enables the sealing disc to move within the recessed opening relative to the housing when the bonnet assembly is coupled to the fluid device.
Claims20
A bonnet assembly for use with a fluid device, the bonnet assembly comprising:
- a housing having a recessed opening to define a shoulder;
- a sealing disc disposed within the recessed opening;
- and
- a biasing element disposed in the recessed opening between a flange of the sealing disc and the shoulder of the housing to provide a load to a seal to be disposed between the housing and the fluid device, wherein the biasing element is to bias the sealing disc away from the housing, and wherein the biasing element enables the sealing disc to move within the recessed opening relative to the housing when the bonnet assembly is coupled to the fluid device.
A fluid valve, comprising:
- a valve body having a fluid flow passageway between an inlet and an outlet;
- a bonnet coupled to the valve body;
- and
- a diaphragm having a peripheral edge clamped between a load assembly of the bonnet and the valve body, the load assembly comprising:
- a sealing disc disposed between an opening of the bonnet and the diaphragm;
- and
- a biasing element disposed between the sealing disc and the bonnet, wherein the biasing element biases the sealing disc toward the diaphragm to provide a load to the peripheral edge of the diaphragm, and wherein the sealing disc moves relative to the bonnet to allow the diaphragm to expand or contract.
A bonnet assembly, comprising;
- means for providing a load to a seal portion of a diaphragm disposed within a fluid flow passageway of a valve body;
- and
- means for enabling the means for providing a load to float when the diaphragm expands or contracts while the means for providing a load maintains a relatively constant load to the diaphragm.
Dependencies are inferred from the claim text.