US PATENT SUBCLASS 212 / 261
.~.~ Fluid actuated ram

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


212 /   HD   TRAVERSING HOISTS

255  DF  HAVING VERTICALLY SWINGING BOOM {6}
260  DF  .~ Having means to swing boom vertically {2}
261.~.~ Fluid actuated ram

DEFINITION

Classification: 212/261

Fluid actuated ram:

(under subclass 260) Apparatus wherein the motor comprises a relatively reciprocating piston and cylinder actuated by fluid pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

238, for similar structure in a horizontally and vertically swinging boom.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

115, for miscellaneous elongated members which are pivoted relative to a supporting base by a fluid pressure actuated mechanism.