U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"The production of too many useful things results in too many useless people."

Karl Marx

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 212/260 - Having means to swing boom vertically


Subclass of Class 212 - Traversing hoists
Definition: Apparatus including a motor, power transmission, or a force
No. of patents: 11
Last issue date: 08/27/2002


NumberTitleIssue Date
6442439Pendulation control system and method for rotary boom cranes
A command shaping control system and method for rotary boom cranes provides a way to reduce payload pendulation caused by real-time input signals, from either operator command or automated crane maneuvers. The method can take input commands and can apply ...
08/27/2002
6250485Boom articulation assembly for aerial boom sections
A mobile aerial apparatus includes a lower boom and an upper boom and pivotally mounted to a pedestal. A lift cylinder pivots the lower boom. An articulated assembly includes a common pivot support secured to the articulated ends of the booms on a common ...
06/26/2001
6042330Electrically actuated lifting and transferring apparatus
An electrically actuated lifting and transferring apparatus for assisting in the mobility of disabled persons. The electrically actuated lifting and transferring apparatus has a mounting bracket, wherein the mounting bracket has a first support means; an ...
03/28/2000
5836462Adjusting means
Adjusting device for a hoisting crane including a work spindle, which is given an axial travel within a cylinder by a relative movement between a screw and a cooperating groove following a driving device. The work spindle has a free end, which is connecte...
11/17/1998
5645180Floor mounted rotatable jib crane
A jib gantry is disclosed which has a connection between the upper end of a mast and a horizontally extending boom which allows tilting adjustment, which is secured in any adjusted position. The boom is hollow and slotted so as to be fixed at any point al...
07/08/1997
5390380Stabilised bed with hoist
A bed having a lifting apparatus for raising and lowering an object, such as a person, onto and off the bed, and a stabilizing leg for stabilizing the bed against transverse tipping forced induced by the operation of the lifting apparatus. The lifting app...
02/21/1995
5052566Engine hoist and support apparatus
An apparatus including a central vertical support post, including a plurality of support legs orthogonally mounted to a lower end of the support post. The support post pivotally mounts a support boom at an upper end thereof, with a rear terminal end of th...
10/01/1991
4572383Crane
A crane is comprised a foundation, a supporting pole elongating vertically from the foundation, an arm capable of rotatably moving on a plane parallel with the supporting pole, and a winding drum mounted at the tip end portion of the arm, the arm consisti...
02/25/1986
4529094Articulation for tower crane boom that has a parking position
The inner end of a tower crane boom is connected to the top of its tower by two lugs fixed on the tower, each having an upwardly opening slot, and two trunnions fixed on the inner end portion of the boom, one for each lug, each rotatably seatable in the r...
07/16/1985
4232792Crane
A remotely controlled rotatable crane for loading logs on a live deck. The crane includes a carriage having a horizontal bed rotatable on a circular track about a verticle axis, the bed carrying a truss assembly extending upwardly and radially outwardly f...
11/11/1980
4085853Construction of buildings or parts thereof
A tractor-trailer combination is used in a method of constructing a building wherein the trailer has an elongated rectangular walled space (divided longitudinally into three spaces) for hauling walls, construction materials or mold parts to the building s...
04/25/1978
 
Sign InRegister
Username  
Password   
forgot password?