Fluid pressure system including free floating bladder
First Claim
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1. Fluid pressure system comprising, in combination:
- a pressure tank through which fluid passes; and
an expandable bladder located in the pressure tank, with the bladder defining a volume which can compress or expand according to pressure of fluid intermediate the bladder and the pressure tank, with the bladder being free floating in the fluid in the pressure tank, wherein the pressure tank includes an inlet opening and an outlet opening, with fluid flowing into the inlet opening and out of the outlet opening through the pressure tank, wherein the volume of the bladder contains a compressible gas, with a valve in communication with the volume for adding the compressible gas to the volume, with the valve being accessible for adjustment of the compressible gas through one of the inlet and outlet openings of the pressure tank.
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Accused Products
Abstract
A fluid pressure system (S) includes a flexible diaphragm bladder (172) located inside a pressure tank (164) installed within a fluid system such as well (168). In preferred aspects, the bladder (172) can be inflated by the introduction of air and is located within a flexible confining tube (198) for preventing over expansion of the bladder (172) and in the preferred form being of a cylindrical configuration and arranged concentrically around the bladder (172). The bladder (172) and the confining tube (198) are free floating in and without physical connection with the pressure tank (164) in preferred forms. The pressure tank (164) includes a flexible side wall (196) to allow folding or willing of the assembled fluid pressure system (S) in preferred forms.
59 Citations
23 Claims
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1. Fluid pressure system comprising, in combination:
- a pressure tank through which fluid passes; and
an expandable bladder located in the pressure tank, with the bladder defining a volume which can compress or expand according to pressure of fluid intermediate the bladder and the pressure tank, with the bladder being free floating in the fluid in the pressure tank, wherein the pressure tank includes an inlet opening and an outlet opening, with fluid flowing into the inlet opening and out of the outlet opening through the pressure tank, wherein the volume of the bladder contains a compressible gas, with a valve in communication with the volume for adding the compressible gas to the volume, with the valve being accessible for adjustment of the compressible gas through one of the inlet and outlet openings of the pressure tank. - View Dependent Claims (2, 3, 22, 23)
- a pressure tank through which fluid passes; and
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4. Fluid pressure system comprising, in combination:
- a pressure tank through which fluid passes; and
an expandable bladder located in the pressure tank, with the bladder defining a volume which can compress or expand according to pressure of fluid intermediate the bladder and the pressure tank, with the bladder being free floating in the fluid in the pressure tank, wherein the bladder is free of physical connection with the pressure tank, wherein the pressure tank includes an inlet opening and an outlet opening, with fluid flowing into the inlet opening and out of the outlet opening through the pressure tank, with the pressure tank including a downstream retainer for preventing movement of the bladder past the downstream retainer and through the outlet opening, wherein the bladder includes a downstream end adjacent to the outlet opening and an upstream end, with the fluid pressure system including a bumper for abutting between the downstream retainer and the downstream end, with the bumper spacing at least portions of the downstream end from the downstream retainer allowing fluid flow between the downstream end and the downstream retainer. - View Dependent Claims (5, 6, 7, 8, 9, 10, 11, 12, 13)
- a pressure tank through which fluid passes; and
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14. Fluid pressure system comprising, in combination:
- a pressure tank through which fluid passes; and
an expandable bladder located in the pressure tank, with the bladder defining a volume which can compress or expand according to pressure of fluid intermediate the bladder and the pressure tank, with the bladder being free floating in the fluid in the pressure tank, wherein the pressure tank is formed of flexible material which is impermeable to the fluid, with the pressure tank maintaining a constant size under pressure by the fluid, with the bladder formed of flexible material. - View Dependent Claims (15)
- a pressure tank through which fluid passes; and
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16. Fluid pressure system comprising, in combination:
- a pressure tank through which fluid passes;
an expandable bladder located in the pressure tank, with the bladder defining a volume which can compress or expand according to pressure of fluid intermediate the bladder and the pressure tank, with the bladder formed of flexible material; and
a confining tube formed of flexible material, with the confining tube restricting the expansion of the bladder. - View Dependent Claims (17, 18)
- a pressure tank through which fluid passes;
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19. Fluid pressure system comprising, in combination:
- a pressure tank through which fluid passes; and
an expandable bladder located in the pressure tank, with the bladder defining a volume which can compress or expand according to pressure of fluid intermediate the bladder and the pressure tank, with the bladder formed of flexible material, wherein the pressure tank is formed of flexible material which is impermeable to the fluid, with the pressure tank maintaining a constant size under pressure by the fluid. - View Dependent Claims (20, 21)
- a pressure tank through which fluid passes; and
Specification
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Current AssigneeIn-Well Technologies Incorporated
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Original AssigneeIn-Well Technologies Incorporated
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InventorsMeyers, Kenneth A., Moon, Thomas A.
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Primary Examiner(s)BRINSON, PATRICK F
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Application NumberUS10/990,618Time in Patent Office489 DaysField of Search138/30, 138/26, 220/721, 220/720, 220/723, 166/228US Class Current138/30CPC Class CodesF16L 55/04 Devices damping pulsations ...
