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US 8,939,330 B2Granted
Removable module service seat
AssigneeGraco Minnesota Inc.
InventorsDaniel P. Ross, Paul R. Quam, Joseph E. Tix, Mark T. Weinberger
Life of this patent
Estimating the term…
Abstract
A fluid dispensing valve comprises a module, a discharge tip, a valve stem and a movable service seat. The module has a fluid inlet, a fluid outlet, and a fluid passage connecting the fluid inlet and the fluid outlet. The discharge tip is removably mounted to the module and in fluid communication with the fluid outlet. The valve stem extends into the fluid passage to close-off the discharge tip. The movable service seat surrounds the valve stem within the fluid passage between the discharge tip and the fluid inlet. The service seat is configured to seal the fluid passage when the discharge tip is removed.
Claims27
A fluid dispensing valve comprising:
- a module having:
- a fluid inlet;
- a fluid outlet;
- and
- a fluid passage connecting the fluid inlet and the fluid outlet;
- a discharge tip removably mounted to the module and in fluid communication with the fluid outlet;
- a valve stem extending into the fluid passage to close-off the discharge tip;
- and
- a movable service seat surrounding the valve stem within the fluid passage between the discharge tip and the fluid inlet, the service seat configured to seal the fluid passage when the discharge tip is removed, wherein the movable service seat includes a seal that seals against the valve stem.
6 more elements
A fluid dispensing valve comprising:
- a body having a fluid passage;
- a tip cap connected to the body so to be in fluid communication with the fluid passage;
- a valve stem extending through the fluid passage to the tip cap;
- a floating seat surrounding the valve stem within the fluid passage;
- a spring configured to bias the floating seat in a direction toward the tip cap;
- and
- a lifter disposed between the tip cap and the floating seat and configured to push the floating seat away from the fluid passage.
4 more elements
A fluid dispensing valve comprising:
- a module body having:
- a fluid passage extending along an axis between a sealed first end and an open second end;
- and
- a fluid inlet intersecting the fluid passage between the sealed first end and the open second end;
- a tip cap coupled to the module body at the open second end, the tip cap including a discharge orifice;
- a valve stem comprising:
- a shaft extending into the sealed first end and out of the open second end;
- and
- a tip for engaging the discharge orifice;
- a filter positioned in the fluid passage and that extends from the tip cap;
- a service seat positioned within the fluid passage adjacent the filter;
- and
- a spring configured to push the service seat and filter against the tip cap.
10 more elements
A fluid dispensing valve comprising:
- a module having:
- a fluid inlet;
- a fluid outlet;
- and
- a fluid passage connecting the fluid inlet and the fluid outlet, the fluid passage including a shoulder;
- a discharge tip removably mounted to the module and in fluid communication with the fluid outlet;
- a valve stem extending into the fluid passage to close-off the discharge tip;
- and
- a movable service seat surrounding the valve stem within the fluid passage between the discharge tip and the fluid inlet, the service seat configured to seal the fluid passage when the discharge tip is removed;
- a spring to bias the movable service seat toward the shoulder;
- and
- a filter extending between the movable service seat and the discharge tip, wherein the filter pushes the movable service seat away from the shoulder when the discharge tip is mounted to the module.
9 more elements
A fluid dispensing valve comprising:
- a module having:
- a fluid inlet;
- a fluid outlet;
- and
- a fluid passage connecting the fluid inlet and the fluid outlet;
- a discharge tip removably mounted to the module and in fluid communication with the fluid outlet;
- a valve stem extending into the fluid passage to close-off the discharge tip;
- and
- a movable service seat surrounding the valve stem within the fluid passage between the discharge tip and the fluid inlet, the service seat configured to seal the fluid passage when the discharge tip is removed, wherein the movable service seat is separable from the valve stem and the module.
6 more elements
A fluid dispensing valve comprising:
- a module having:
- a fluid inlet;
- a fluid outlet;
- and
- a fluid passage connecting the fluid inlet and the fluid outlet, the fluid passage including a shoulder;
- a discharge tip removably mounted to the module and in fluid communication with the fluid outlet;
- a valve stem extending into the fluid passage to close-off the discharge tip;
- and
- a movable service seat surrounding the valve stem within the fluid passage between the discharge tip and the fluid inlet, the service seat configured to seal the fluid passage when the discharge tip is removed, wherein the movable service seat is separable from the valve stem and the module;
- and
- a spring to bias the movable service seat toward the shoulder.
8 more elements
Dependencies are inferred from the claim text.