Having horizontally swinging boom or bridge > Patents

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Class Information
Number: 212/223
Name: Traversing hoists > Having horizontally swinging boom or bridge
Description: Apparatus comprising a boom* or a bridge* which is mounted to a support for movement about a vertical axis.

Sub-classes under this class:

Class Number	Class Name	Patents
212/245	And means to swing boom horizontally	30
212/232	And vertically swinging	45
212/224	Boom mounted for guided horizontal translation (e.g., trolley mounted)	19
212/230	Extensible by movement of boom or boom segment along longitudinal axis thereof	37
212/250	Having fluid ram directly actuating load cable or sheave therefor	16
212/252	Having passage for hoist cable through boom supporting member	16
212/253	Having specific bearing structure	89
212/251	Having specific engager for load	14
212/225	Having trolley thereon	34

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7381024	LPG tank insertion apparatus for automobiles	Jun. 3, 2008
7003938	Forage harvester with positionable operator's cabin	Feb. 28, 2006
6860703	Vehicle boom assembly and method	Mar. 1, 2005
5823369	Control device for automatically stopping swiveling of cranes	Oct. 20, 1998
5645180	Floor mounted rotatable jib crane	Jul. 8, 1997
5487478	Inverted kingpost crane	Jan. 30, 1996
5431526	Lifting system for transporting vehicle	Jul. 11, 1995
5219267	Method for salvaging the contents of a leaking drum	Jun. 15, 1993
5139619	Cover lifting device	Aug. 18, 1992
5083395	Crab cage and pole apparatus	Jan. 28, 1992
4979078	Lighted display case	Dec. 18, 1990
4838439	Hoist for use at a manhole	Jun. 13, 1989
4794662	Remotely operated chimney cleaning apparatus	Jan. 3, 1989
4688688	Jib crane arrangement having a rotatable mast	Aug. 25, 1987
4659276	Load-handling apparatus for a vehicle	Apr. 21, 1987
4561551	Propulsion means for hoisting systems	Dec. 31, 1985
4560074	Scaffold mounted hoist	Dec. 24, 1985
4511048	Jib crane system having a rotatable mast	Apr. 16, 1985
4506792	Articulated waist terrain vehicle	Mar. 26, 1985
4505396	Wheeled working vehicle with crane	Mar. 19, 1985
4498596	Supplementary equipment for use with a self-propelled crane with a telescopic jib	Feb. 12, 1985
4435118	Method of controlling horizontal motion of a load application point on an articulated crane	Mar. 6, 1984
4397396	Truck crane having an elongated main frame	Aug. 9, 1983
4216870	Crane mounting	Aug. 12, 1980
4191301	Rotation limiter	Mar. 4, 1980
4119165	Articulated vehicles	Oct. 10, 1978
4004778	Portable roof winch	Jan. 25, 1977
4002243	Jib crane	Jan. 11, 1977