Needle valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 29, 2016
Grant Date -
May 31, 2012
app pub date -
Nov 29, 2010
filing date -
Nov 29, 2010
priority date (Note) -
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status (Latency Note)
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Abstract
Disclosed herein is an improved needle valve, where, in some preferred embodiments, the needle valve includes a stem having a ball linkage and a seat having a ball linkage housing. The ball linkage can be snap-fit to the seat, and the ball linkage and ball linkage housing cooperate to form a ball-and-socket joint. In some embodiments, an axis is formed at least in part by the stem, and the ball-and-socket joint allows rotation of the seat about the axis and inhibits rotation of the seat about another axis. A gap may be provided between the seat and the stem to accommodate deformation of the seat. Also disclosed herein is an improved needle valve, where, in some preferred embodiments, a stem and a handle are provided with mating geometry and a biased snap-fit mechanism to facilitate ease of assembly.
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