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
Laminar library screen
Power converter and method of power conversion
System, method, and computer program product for determining whether an electronic mail message is compliant with an etiquette policy
Method and system for streaming digital video content to a client in a digital video network
Image forming apparatus to automatically select a communication condition
Novelty headband
Workflow optimization for high throughput imaging environments
  Randomly Featured Patents
Recombinant protein containing a C-terminal fragment of plasmodium MSP-1
Objective lens for recording and reproducing for use in an optical information recording medium
Automated, classified expenditure data card recording system
Zinc-free continuously variable transmission fluid
Liquid display device for regulating the light passing through
Frequency synchronizing device for OFDM/CDMA system
Method and circuit arrangement for the automatic determination of an exposure value
Device and method for forming and delivering hands from randomly arranged decks of playing cards
Stabilizing support for an animal trap
Manufacturing analysis using a part-process matrix