US PATENT SUBCLASS 212 / 347
BOOM OR MAST


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

347BOOM OR MAST {1}
348  DF  .~> Extensible by sliding sections {2}


DEFINITION

Classification: 212/347

BOOM OR MAST:

(under the class definition) Subcombination comprising an elongated structural member disclosed as being part of a traversing hoist and which serves to either support the load, a boom*, or boom rigging.

(1) Note. To be proper for original placement in Class 212, a claim to a boom or mast as defined above must include structural limitations peculiar to a traversing hoist. (See search note to Class 52 in main definition.)

SEE OR SEARCH THIS CLASS, SUBCLASS:

177, for a boom having means to facilitate assembly or disassembly of plural longitudinal segments of the boom to one another.