Flow limiter
OwnerCornelis Maria Kippinginventor
Life of this patent
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Abstract
A device for controlling liquid flow in a conduit which is of a hat-like configuration defined by a cylindrical base part having a flange part at one end and a closure part at another end joined thereto by an integral spring which bends to permit through-flow of liquid through a peripheral gap between the body part and the closure part. The gap is of a stepwise progression including either an abrupt or curved step. The gap has a medial gap portion and opposite gap portion ends which are relatively sized to effect the stepwise progression.
Claims36
A device for limiting liquid flow in a conduit comprising a base part having a through-flow opening and a closing part carried by the base part through spring means for effecting displacement of the closure part with at least a substantial axial component for partially closing the through-flow opening against a closing surface on the base part, means for fixing the device at a fixed position in a conduit whereby liquid can pass through the device only via the through-flow opening, the base part and the closing part are arranged relative to each other such that in a rest position defined by the spring means a gap is formed between the base part and the closing part, said gap is made smaller counter to spring action of said spring means by bending under the influence of liquid pressure difference across the device;
- and the gap has a stepwise progression.
Dependencies are inferred from the claim text.