Cover lock/safety device in a pressure cooker
AssigneeAeternum LLC
InventorGiancarlo Beluzzi
Life of this patent
Estimating the term…
Abstract
The cover lock/safety device (1) of a pressure cooker (2) substantially comprises a cover handle (10) hinged onto the cover (3), which handle his formed by a first, hook-shaped element (16), and a second element (17) extending from the extension of said first, hook-shaped element. The first element (16) gets engaged in (12) to the side surface of the cooker body (4), tightly closing the said cover (2). When the cooker operates, the inner pressure inside the cooker (2) pushes outwards a pin element (11) which, in said extended position, engages the free end of said second element (17). Thus, the handle (10) results to be locked when the cooker is under pressure. The device is hence easy to use and, simultaneously, safe.
Claims18
A pressure cooker including a body, cover and a lock/safety device (1) (2) said lock safety device, comprising at least one handle (10) hinged onto said cover (3) in a hinging axis (15) which is parallel to a plane (14) in which the said cover (3) lays and said cover (3) being provided with at least one pin element (11) placed in a housing (24) in said cover (3) and slides outwardly from said cover (3) when said cooker is under pressure, from a first retracted position to an outward protruding position from said cooker (2) along a sliding axis (21), to lock the handle (10), said handle (10) comprising, on opposite sides relative to said hinging axis (15), a first, hook-shaped element (16) and a second, flat element (17), said first, hook-shaped element (16) having a free bent end (18) which hooks, under closure conditions, into a sideways protruding element (12) which protrudes outwardly from the cooker body (4), said second, flat element (17) being connected to an end of said first element (16) to form an obtuse angle with said sliding axis (21) of the pin element (11), said second flat element having a free end (23) which extends up to the side surface of said pin element (11) when said pin element is in an outward protruding position from said cooker (2) to prevent removal of said cover.
A pressure cooker according to claim (1), characterized in that said pin element (11) slides through a seat (24) to become fastened, under tightly sealing conditions, onto said cover (3) said seat comprising a first conical surface (29), suitable for engaging a first O-ring gasket (27) on an external end of said pin (11) which prevents said pin (11) from falling into the cooker and said seat having a second conical surface (30) suitable for engaging a second O-ring gasket (28) provided on an internal end of pin element (11).
Dependencies are inferred from the claim text.