초록 ▼

A pressure cooker has a cover which is removably secured in pressure-tight relation to the cooker body. The cover has a centrally disposed valve, which regulates pressure development in the cooker, and an over-pressure release plug in the cover margin adjacent a cover handle, which separates from th

A pressure cooker has a cover which is removably secured in pressure-tight relation to the cooker body. The cover has a centrally disposed valve, which regulates pressure development in the cooker, and an over-pressure release plug in the cover margin adjacent a cover handle, which separates from the cover in response to excessive pressure development in the cooker is captivated by an overhang portion of the cover handle which directs the escaping fluids away from the hand grip portion of the handle. The cooker also has a pressure-actuated interlock in the margin of its cover opposite the cover handle which inhibits removal of the cover when the cooker is in a pressurized condition, and prevents pressure build up in the cooker when the cover is incompletely locked to the cooker body.

대표청구항 ▼

In a pressure cooker embodying a vessel having an open top, a removable cover sealable to the vessel over said open top and a pressure relief valve which regulates pressure development therein during cooking, the combination therewith of an overpressure release plug releaseably sealed within an open

In a pressure cooker embodying a vessel having an open top, a removable cover sealable to the vessel over said open top and a pressure relief valve which regulates pressure development therein during cooking, the combination therewith of an overpressure release plug releaseably sealed within an opening in a marginal portion of the cover so as to normally close the opening and be ejectable from the opening to vent the interior of the cooker through the opening to atmosphere when excess pressure developes within the vessel, and a handle fixed to the cover including a hand grip portion which projects radially from the cover and an overhang portion which overlies said marginal portion of the cover containing the overpressure release plug, said marginal portion of the cover and overhang portion of the handle being so shaped as to provide a cavity therebetween in which the overpressure release plug is captivated when it is ejected from the opening in the cover, said overhang portion of the handle having an opening in its side directed away from the handle grip portion which is of a size insufficient to permit escape of the plug from said cavity and directs the escaping fluids toward the center of the cover and away from the hand grip portion of the handle. A pressure cooker comprising, in combination: a body, having an open top with a peripheral sealing surface, a normally vertical central axis, and a handle extending outward radially; a cover, for closing the open top of said body, having a rim with a peripheral sealing surface, a plurality of venting passages, and a handle extending outward radially, said cover and said body being mutually rotatable about said axis between a first relagive position, in which said handles are in alignment, anD a second relative position, in which said handles are out of alignment by a predetermined angle at said axis; engagement means for enforcing engagement between said sealing surfaces in said first relative position of said cover and said body, to provide a seal for said cooker; engagement preventing means carried in part by said body and in part by said cover for preventing initial engagement between said sealing surfaces except in said second relative position at only said predetermined angle; and further independent safety lack means carried in part by said cover and in part by said body for preventing relative movement from said first position to said second position during a superpressure condition when the pressure sealed in said cooker exceeds that ambient to said cooker by more than a predetermined amount, and for venting said cooker except during said superpressure condition in said first relative position.