Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Lifting device with counterweight










Image Number 3 for United States Patent #6109463.

A lifting device which includes a frame and an elongated boom having a lower end pivotally connected to the frame along a pivot axis. The lower end of the boom has a counterweight connected thereto offset from the pivot axis. The counterweight has a center of gravity which is movable with respect to the pivot axis of the boom. The counterweight can be freely pivotal, fixed, or partially fixed with respect to the boom. When linkage is provided between the counterweight and the boom, the counterweight can be rolled or tilted so as to move the counterweight center of gravity with respect to the pivot axis of the boom.








 
 
  Recently Added Patents
Owner-brokered knowledge sharing machine
Circuit for compressing data and a processor employing same
Electronic device
Trimming circuit and semiconductor device
Image forming apparatus and warming up method thereof
Medicament container
Method for detection and characterization of a microorganism in a sample using time-dependent intrinsic fluorescence measurements
  Randomly Featured Patents
Molecularly imprinted polymers produced by template polymerization
Method for applying a film to a planar substrate, deflecting element and device for applying a film to a planar substrate
Tissue sampling devices, systems and methods
Chemical vapor deposition apparatus
High speed data acquisition utilizing multiple charge transfer delay lines
Automated burn-in board unloader and IC package sorter
Pop up scroll bar
Easy opening microwave pouch
Photosensitive resin composition
Progressive image transmission using discrete wavelet transforms