Patent ID: 7726508

Claim:
A pressure cooker ( 10 ) comprised of a pot ( 12 ), a fitted lid ( 14 ) and a pressure release valve ( 16 ) provided in said lid ( 14 ), a lower portion ( 16 B) of said pressure release valve ( 16 ) located inside said lid ( 14 ) and having an air intake aperture ( 18 ) and an upper portion ( 16 A) of said pressure release valve ( 16 ) located outside said lid ( 14 ) and having an air release nozzle, characterized in that: said lower portion has a cylindrical portion with an external thread; said lower portion ( 16 B) of said pressure release valve ( 16 ) is covered with a protective device ( 20 ) that is comprised of a mesh casing body ( 30 ) and an attachment frame ( 40 ′); and wherein; said mesh casing body ( 30 ) is a thin dome shape that has an outwardly curved, outer surface and spacedly covers said lower portion ( 16 B) of said pressure release valve ( 16 ) and engages at a periphery thereof with an inner surface of said lid ( 14 ), said mesh casing body ( 30 ) having a plurality of openings each being equal to or smaller than air intake apertures ( 18 ) of said pressure release valve ( 16 ); said attachment frame ( 40 ′) is a substantially hollow cylinder coupled to a bottom center of said mesh casing body ( 30 ) and threadably attached to said cylindrical portion of said lower portion ( 16 B) of said pressure release valve ( 16 ) by an internal thread of said hollow cylinder, said attachment frame ( 40 ′) having at least one hole ( 40 A′) that communicates with an interior of said pressure release valve ( 16 ) and said air hole ( 40 A′) is larger than said openings in said mesh casing body ( 30 ); and a knob for securing the mesh casing body ( 30 ) to the attachment frame ( 40 ′); whereby clogging of said pressure release valve ( 16 ) and the air hole ( 40 A′) is prevented.