Pressure cooker

Details Pressure cooker Pressure cooker

1986-07-28

1987-12-08

Marcus, Stephen

Receptacles

Closures

Having means for securing or retaining closure in its closed...

220321, 99325, 99337, 99369, B65D 4534

Patent

active

047113669

ABSTRACT:
A pressure cooker which uses an elastic C-connector to fix a cover to a cooker body in airtight manner. Loosening and tightening of the C-connector are controlled by an operating handle. The operating handle has a relief valve at one end. The relief valve has a valve body and an adjustable valve rod so that when the C-connector is in tightening condition, the valve body is located on a valve seat on the cover. Pressure can be relieved through the relief valve or edge of the C-connector after it reaches a certain level. Pressure in the cooker will raise two safety pins to restrict movement of a rod so that removal of the valve body from the valve seat is impossible and thus removal of the cover is prevented for safe operation.

REFERENCES:
patent: 2237952 (1941-04-01), Smith
patent: 3029724 (1962-04-01), Lee
patent: 4294377 (1981-10-01), Chen
patent: 4299331 (1981-11-01), Bertola
patent: 4396130 (1983-08-01), Robinson
patent: 4470515 (1984-09-01), Boehm

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