Receptacles – Closures – Having means for securing or retaining closure in its closed...
Patent
1979-12-26
1981-02-17
Hall, George T.
Receptacles
Closures
Having means for securing or retaining closure in its closed...
220203, B65D 4500
Patent
active
042510074
ABSTRACT:
A pressure cooker has a cooking container, a cover retainable on the container by a bayonet lock and having a sealing ring, a radially extending handle on the cover, and a combined valve and safety device arranged in the handle and having valve elements, safety elements and one common operating element interdependently adjusting and actuating the valve and safety elements. The valve elements of the device include a pressure limiting valve simultaneously forming a safety valve and one slider arranged to adjust the pressure limiting valve. The safety elements of the device include two further sliders one of which is formed as a ventilating slider and arranged for lifting of the sealing ring of the cover whereas the other of the sliders is formed as a locking slider and arranged for mechanical locking of the cover on the container. The common operating element is formed as an operating shaft provided with an outer rotary handle member, and the device includes at least one control plate engaged with the operating shaft and having at least one control groove, and a control pin connected with one of the sliders and engaging in the control groove.
REFERENCES:
patent: 3973694 (1976-08-01), Tess
patent: 4103801 (1978-08-01), Walker
patent: 4159063 (1979-06-01), Weber et al.
patent: 4162741 (1979-07-01), Walker et al.
Braun & Kemmler GmbH & Co. KG
Hall George T.
Striker Michael J.
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