System of opening and closure with lever servomechanism for pressure cooker
AssigneeLagostina S.p.A.
InventorFausto Milanesi
Life of this patent
Estimating the term…
Abstract
A system of opening and closure with lever servomechanism for pressure cooker of the type comprising a lever handle (1), a flexible lid (2) and an arc-shaped cross member (3) with the curved surface or back turned towards the handle, characterised in that said system comprises a fork (4) connected to the lever handle with a first hinge (8) and to the flexible lid with a second hinge (9), and a third hinge (7) for connection between said handle and the cross member (3), so as to reduce the force to be applied to the lever handle (1).
Claims8
A system of opening and closure with lever servomechanism for pressure cooker of the type comprising a lever handle (1), a flexible lid (2) and an arc-shaped cross member (3) with the curved surface or back turned towards the handle, characterised in that said system comprises a fork (4) connected to the lever handle with a first hinge (8) and to the flexible lid with a second hinge (9), and a third hinge (7) for connection between said handle and the cross member (3), in such a way as to reduce the force to be applied to the lever handle (1).
A system of opening and closure according to the previous claims, characterised in that the third hinge (7) and the first hinge (8) are substantially on the same vertical line, in such a way that said third hinge (7) is above said first hinge (8) in an open handle position, and in a closed handle position said third hinge (7) is below said first hinge (8).
A system of opening and closure according to the previous claims, characterised in that the fork (4) is formed by at least one arm shaped such as to have a seat (10), wherein the pin of the first hinge (8) engages in the closure position.
A system of opening and closure according to the previous claims, wherein the handle (1) is provided with shoulders (16) suitable for limiting by means of contact with the brackets (6) the extent of rotation to a predetermined angle.
A system of opening and closure according to the previous claims, wherein the opening and closure take place by means of the rotation through a predetermined angle of the lever handle (1) around said third hinge (7).
A system of opening and closure according to the previous claims, wherein the flexible lid (2) is provided with appropriate seats for holding known safety means of pressure cookers such as at least one pressure release valve (18, 19) and a safety button (17).
Dependencies are inferred from the claim text.