US PATENT SUBCLASS 220 / 780
.~ Removable closure situated by resilient distortion and retained by preformed configuration (e.g., detent)

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
780.~ Removable closure situated by resilient distortion and retained by preformed configuration (e.g., detent) {9}
781  DF  .~.~> Having structure to stack or nest when not in use
782  DF  .~.~> Closure reinforced
783  DF  .~.~> Closure interlocked by upward opening trough at passage mouth
784  DF  .~.~> Noncontinuous interlock along perimeter of closure, closure support juncture {4}
789  DF  .~.~> Interlock internal to passage mouth (e.g., stopper type closure) {2}
792  DF  .~.~> Closure flange has noninterlocking contact internal to passage mouth
793  DF  .~.~> Closure includes integral lifting tab
794  DF  .~.~> Interlock surface on closure is bent or impressed
795  DF  .~.~> With gasket or packing

DEFINITION

Classification: 220/780

Removable closure situated by resilient distortion and retained by preformed configuration (e.g., detent):

(under subclass 200) Subject matter wherein the closure or closure support is provided with structure designed to induce a deformation of the closure or the closure support during their mating cooperation, the return of the deformed portion to its normal position serves to cause an interlock between the closure and the closure support, thus preventing their casual separation.

(1) Note. The closure support may be the container end wall or sidewall or it may be a retaining ring attached to the end wall or sidewall.

SEE OR SEARCH THIS CLASS, SUBCLASS:

4.01+, for a sectional container including similar retaining structure.

254, for a secondary closure within the parameter of primary closure one of which includes similar retaining structure.

796+, for a removable closure retained by friction.

SEE OR SEARCH CLASS

138, Pipes and Tubular Conduits, 96+, for a closure including similar retaining structure limited for use with a pipe.

222, Dispensing, appropriate subclasses for a closure including similar retaining structure and including a

dispensing feature.

301, Land Vehicles: Wheels and Axles,

37.1+, for a wheel cover including similar retaining structure.