Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1995-06-12
1996-07-02
Pollard, Steven M.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
220469, 220912, A47J 4100
Patent
active
055313507
ABSTRACT:
A thermal pot including a heat-insulative hollow shell having a top mounting groove and a bottom mounting flange, a rim having a mounting flange fastened to the top mounting groove on the shell by ultrasonic welding, a heat-insulative lining fastened to the inside of the shell and connected to the rim by a connecting member, a base covered on the shell and the lining at the bottom and having a mounting groove fastened to the bottom mounting flange of the shell by ultrasonic welding, the rim a plurality of stop blocks and retaining grooves around the periphery, the connecting member having a first coupling portion fastened to an endless bottom mounting groove on the rim by ultrasonic welding, a second coupling portion coupled to an inside lip on the shell, and a third coupling portion coupled to a top lip on said lining, a heat-insulative inner pot put in the space defined within said lining and having a pivoted handle for carrying, and a cover detachably covered on the shell over the inner pot, the cover having a handgrip at the top, a plurality of retaining strips for engagement with the retaining grooves on the rim by rotating the cover relative to the rim, and a spring-supported hook for engagement with one stop block on the rim to lock the cover in the closed position.
REFERENCES:
patent: 2538524 (1951-01-01), Joseph
patent: 3094448 (1963-06-01), Cornelius
patent: 3120570 (1964-02-01), Kennedy et al.
patent: 3298554 (1967-01-01), Piker
patent: 3934748 (1976-01-01), Racz
patent: 5251542 (1993-10-01), Itoh et al.
patent: 5355777 (1994-10-01), Chen et al.
Lei Alfred
Pollard Steven M.
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