US PATENT SUBCLASS 166 / 299
.~ With explosion or breaking container to implode


Current as of: June, 1999
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166 /   HD   WELLS

244.1  DF  PROCESSES {39}
299.~ With explosion or breaking container to implode


DEFINITION

Classification: 166/299

(under subclass 244.1) A process in which an explosion is caused to occur or a container is broken to cause an implosion.

(1) Note. An explosion in an internal combustion engine for driving the engine is not considered an "explosion" for this subclass. Such disclosures are classified on other features.

(2) Note. The container usually contains relatively low pressure fluid such as air at atmospheric pressure so that when it is broken in a high pressure environment, such as a well, an implosion occurs.

(3) Note. A "container" under this definition is a completely enclosed space and not a tubing of indefinite length.

(4) Note. Breaking a closure portion only of a container is not included.

SEE OR SEARCH THIS CLASS, SUBCLASS: 63, for apparatus for causing an explosion in a well.

162+, for a receptacle bodily movable in a well to carry material which may be used to cause an implosion.

247, for a process involving an explosion caused by nuclear energy.

297, for a process including perforating, weakening or separating a pipe wall in a well.

311, for a cleaning process using an implosion caused by creating access to a low pressure area in a container or tubing.

SEE OR SEARCH CLASS

175, Boring or Penetrating the Earth,

2+, for processes or apparatus for forming a bore hole by below ground explosion, or perforating or cutting a casing or other bore lining by firing a bullet or exploding a shaped charge in an inaccessible bore.

417, Pumps,

73+, for combustion type pumping methods for wells.