Vacuum control system for lifting systems

B - Operations – Transporting – 66 – C

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

294/2

B66C 11/02 (2006.01) B66F 3/35 (2006.01)

Patent

CA 2038775

ABSTRACT OF THE DISCLOSURE This invention provides improved body length adjustment means for a vacuum powered lifting system of the type that embodies a variable length lifting body responsive to the differential of pressure inside that body with atmospheric pressure to resolve critical manual control problems. Thus control is provided by proportional movement of a control member over a substantially linear range producing a smooth progressive movement of the lifting mechanism. This permits non-critical lowering and release of a work load object by unskilled operators. Thus, an air injection valve with an air release port is positioned within the lifting body having an elongated slot operable over a control range proportionately change to the body length by release of a progressively increasing flow of air into the body to increase air pressure and body length over the critical range of lowering and releasing the work load object in response to a corresponding substantially linear movement of the control member. Variable adjustment means establishes a known upper lift limit by control of the length of the body both under loaded and unloaded conditions, and provisions are made to keep a vacuum responsive work object grasping means continuously operable.

LandOfFree

Say what you really think

Search LandOfFree.com for Canadian inventors and patents. Rate them and share your experience with other people.

Rating

Vacuum control system for lifting systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Vacuum control system for lifting systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vacuum control system for lifting systems will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFCA-PAI-O-1926822

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.