Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Reexamination Certificate
2006-04-11
2006-04-11
Lee, Kevin (Department: 3753)
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
C004S541300
Reexamination Certificate
active
07025079
ABSTRACT:
An automatic air bleed valve which allows air to escape from water lines. Allowing air to thus escape, prevents pump cavitation and/or air in the heater. The air bleed valve is positioned between a pump and the heater, and is higher than the heater, and no higher than the water level in the spa. The air bleed valve comprises a vertically disposed cylinder containing a piston and having a valve bottom, a valve inlet proximal to the valve bottom, valve top, and a valve outlet proximal to the valve top. The piston moves vertically in the cylinder. While water is present in the cylinder, the piston raises and cooperates with a seal to prevent a flow of water through the valve. While air is present in the cylinder, the piston drops and allows the air to flow past the piston to the valve outlet.
REFERENCES:
patent: 2725071 (1955-11-01), McKillop
patent: 2776630 (1957-01-01), Fagan
patent: 2847149 (1958-08-01), Ainsworth
patent: 2908282 (1959-10-01), Maisch
patent: 3197069 (1965-07-01), Brunson
patent: 3474735 (1969-10-01), Gilmore
patent: 3575521 (1971-04-01), Porter et al.
patent: 3722180 (1973-03-01), Boucher et al.
patent: 3770001 (1973-11-01), Davis
patent: 4759476 (1988-07-01), Pasbrig
patent: 5137061 (1992-08-01), Deininger et al.
patent: 5211200 (1993-05-01), Cassidy
patent: 5263459 (1993-11-01), Talaski
patent: 5526538 (1996-06-01), Rainwater
patent: 6003167 (1999-12-01), Nehring
Averill, Jr. Edgar W.
Green Kenneth L.
Lee Kevin
LandOfFree
Air bleed-off valve does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Air bleed-off valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Air bleed-off valve will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3584846