Russell H Saville

US Patent:

46137386, Sep 23, 1986

Filed:

Feb 19, 1985

Appl. No.:

6/702639

Inventors:

Russell H. Saville - Minnetonka MN

Assignee:

Savillex - Minnetonka MN

International Classification:

H05B 680

US Classification:

219 1055R

Abstract:

Microwave digestion vessel of Teflon PFA material including a Teflon PFA vessel with a threaded top and a Teflon PFA cap with internal threads for engaging the vessel threads. A valve assembly extends upwardly from a center portion of the cap and includes a valve seat, a valve ball internal thereto, a Teflon spring uniquely configured and a valve cap holding the spring and ball into the ball seat of the valve seat. An exhaust hole is provided out one side of the valve cap. The vessel includes a flange for encompassing a lower portion of the cap for pressure expansion protection. A ring with an adjoining flange is also provided for the cap to provide for pressure expansion protection.

US Patent:

49335294, Jun 12, 1990

Filed:

Apr 3, 1989

Appl. No.:

7/332789

Inventors:

Russell H. Saville - Minnetonka MN

Assignee:

Savillex Corporation - Minnetonka MN

International Classification:

H05B 680

US Classification:

219 1055R

Abstract:

Microwave digestion vessel of Teflon PFA material including a Teflon PFA vessel with a threaded cap and a threaded adjustable nut with a diaphragm. A valve assembly is formed by a U-shaped hole in the cap, a plunger extending downwardly from the adjustable nut into the U-shaped hole, and the diaphragm extending downwardly into a recess in the adjustable nut. Pressure in the digestion vessel forces the plunger up against the diaphragm to move the plunger upwardly, subsequently releasing pressure through an exhaust hole in the cap.

US Patent:

47360836, Apr 5, 1988

Filed:

Sep 19, 1986

Appl. No.:

6/909210

Inventors:

Russell H. Saville - Minnetonka MN

Assignee:

Savillex Corporation - Minnetonka MN

International Classification:

H05B 680

US Classification:

219 1055R

Abstract:

Microwave digestion vessel of Teflon PFA material including a Teflon PFA vessel with a threaded top and a Teflon PFA cap with internal threads for engaging the vessel threads. A valve assembly extends upwardly from a center portion of the cap and includes a valve seat, a valve ball internal thereto, a Teflon spring uniquely configured and a valve cap holding the spring and ball into the ball seat of the valve seat. An exhaust hole is provided out one side of the valve cap. The vessel includes a flange for encompassing a lower portion of the cap for pressure expansion protection. A ring with an adjoining flange is also provided for the cap to provide for pressure expansion protection. An alternative embodiment is illustrated with a side venting orifice with filtering, a dialed in spring pressure, and a spring cavity with an integral valving surface.