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US 8,567,431 B2Granted
Check valve
OwnerPhilip L. Hapnerinventor
Life of this patent
Estimating the term…
Abstract
A check valve system including a plumbing assembly and a check valve assembly. The plumbing assembly has at least three portals including a first portal, a second portal and a third portal. The check valve assembly is positioned to block a fluid flow entering the second portal from flowing out of the first portal. The check valve assembly includes a securing mechanism positioned in the third portal.
Claims15
A check valve system, comprising:
- a plumbing assembly having at least three portals, including a first portal, a second portal and a third portal;
- and
- a check valve assembly positioned to block a fluid flow entering said second portal from flowing out of said first portal, said check valve assembly including a securing mechanism positioned in said third portal, said securing mechanism includes an over-center device that contacts a side of said third portal when said check valve assembly is positioned in said plumbing assembly.
A check valve system, comprising:
- a plumbing assembly having at least three portals, including a first portal, a second portal and a third portal;
- and
- a check valve assembly positioned to block a fluid flow entering said second portal from flowing out of said first portal, said check valve assembly including a securing mechanism positioned in said third portal, said check valve assembly further includes at least one protruding angled finger configured to engage an installation tool while said check valve assembly is lowered through said third portal, said securing mechanism includes a hole by which said tool can engage said securing mechanism to thereby disengage said securing mechanism from said third portal, said at least one protruding angled finger includes a first angled protruding finger and a second angled protruding finger, said securing mechanism including a latch arm pivotally connected to at least one of said first angled protruding finger and said second angled protruding finger.
A check valve, comprising:
- a ring;
- an arm extending from said ring;
- a securing mechanism connected to said arm;
- and
- a flapper pivotally connected to one of said ring and said arm, said check valve is configured to be positioned in a plumbing assembly having at least three portals, including a first portal, a second portal and a third portal, the check valve being positioned to block a fluid flow entering said second portal from flowing out of said first portal, said securing mechanism being positioned in said third portal, said securing mechanism includes an over-center device that contacts a side of said third portal when said check valve is positioned in said plumbing assembly.
2 more elements
Dependencies are inferred from the claim text.