Fluid handling – Diverse fluid containing pressure systems – Fluid separating traps or vents
Reexamination Certificate
2008-01-08
2008-01-08
Rivell, John (Department: 3753)
Fluid handling
Diverse fluid containing pressure systems
Fluid separating traps or vents
C137S375000
Reexamination Certificate
active
11044880
ABSTRACT:
A steam trap comprises a trap body having an inlet and an outlet each defining inner threads. The trap body further includes a spigot defining external threads. Also provided is a cap defining internal threads for engaging the external threads of the spigot of the trap body. A valve element freely moves inside a trap chamber defined between an inner surface of the cap and the valve seat of the spigot. The cap defines a top surface on which a disc of thermally insulative material is juxtaposed. A cup-shaped cover, which may carry indicia such as manufacturer name and model number, is received over the thermally insulative disc.
REFERENCES:
patent: 2051732 (1936-08-01), McKee
patent: 2379712 (1945-07-01), Hildebrecht
patent: 2945505 (1960-07-01), Hansen et al.
patent: 3170477 (1965-02-01), Scott, Jr. et al.
patent: 3418789 (1968-12-01), Hoffman et al.
patent: 3467309 (1969-09-01), Fujiwara
patent: 3536090 (1970-10-01), Scott, Jr.
patent: 3537682 (1970-11-01), Priese
patent: 3583846 (1971-06-01), Kimball et al.
patent: 3664362 (1972-05-01), Weise
patent: 3664363 (1972-05-01), Miyawaki
patent: 3720223 (1973-03-01), Goellner
patent: 3807429 (1974-04-01), Breton
patent: 4013220 (1977-03-01), Zoller
patent: 4161278 (1979-07-01), Klann et al.
patent: 4427149 (1984-01-01), Adachi
patent: 4668943 (1987-05-01), Bunker et al.
patent: 4736886 (1988-04-01), Oike
patent: 5189877 (1993-03-01), Wells et al.
patent: 5921268 (1999-07-01), Soares
patent: 5934316 (1999-08-01), Helmsderfer
patent: 0211080 (1987-02-01), None
Product sheet entitled “Spirax Sarco TD 52 Thermodynamic Steam Trap,” copyright 1995, 2 pages.
Radle, Jr. Bernard J.
Sharp, Jr. James H.
Nelson Mullins Riley & Scarborough LLP
Price Craig
Rivell John
Spirax Sarco, Inc.
LandOfFree
Steam trap does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Steam trap, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steam trap will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3950047