Chucks or sockets – Radially reciprocating jaws
Patent
1997-10-28
1999-03-16
Elkins, Gary E.
Chucks or sockets
Radially reciprocating jaws
2111311, 211163, 248131, 2483491, B65D 542, A47F 502
Patent
active
058819509
ABSTRACT:
In order to provide a sturdy yet inexpensive rotary corrugated box, the box includes a corrugated base having an upstanding corrugated side wall, each having an inner surface and an outer surface to define a box-like enclosure. A rigid insert is disposed within the box-like enclosure substantially co-extensive with the inner surface of the corrugated base. The rigid insert is substantially planar and has a flat surface in engagement with substantially the entire inner surface of the corrugated base. A rotary base assembly is provided which includes a first portion in engagement with the outer surface of the corrugated base and a second portion to be disposed on a supporting surface. The first and second portions cooperate so as to facilitate relative rotational movement therebetween. With this construction, the first portion of the rotary base assembly is rigidly secured to the rigid insert through the corrugated base to form a sandwich construction consisting of the rigid insert and the first portion of the rotary base assembly with the corrugated base therebetween.
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Elkins Gary E.
R. R. Donnelley & Sons Company
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