Steam trap
AssigneeSpirax-Sarco Limited
InventorsJames H. Sharp, Jr., Bernard J. Radle, Jr.
Life of this patent
Estimating the term…
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.
Claims5
A steam trap comprising:
- a trap body having an inlet and an outlet, said inlet and said outlet each defining inner threads;
- said trap body further having a spigot, said spigot defining external threads;
- a cap defining internal threads for engaging said external threads of said spigot of said trap body, said cap defining a top surface;
- and
- a disc of thermally insulative material juxtaposed to said top surface of said cap;
- a cover received over said disc, said cover configured as having a top portion from which a circumferential skirt depends;
- and
- wherein said circumferential skirt is dimensioned so as to provide a gap between said circumferential skirt and a top surface of said cap.
Dependencies are inferred from the claim text.