Easy lift pit lid

Details Easy lift pit lid Easy lift pit lid

1983-10-03

1984-08-28

Hall, George T.

Receptacles

Leg or lap supported

With pail encircling band or ring

220334, B65D 2524

Patent

active

044679327

ABSTRACT:
A servo power system is provided for the heavy lid of a pit designed for installation below the surface of an aircraft docking and refueling area. For one embodiment, a counterbalancing system is shown. The lid is mounted for rotation at the top of a pit wall about lid hinges lying along a horizontal axis. A counterweight is secured for rotation about a horizontal counterweight axis which is located below and parallel to the lid axis. Meshed gear sections on the lid and on the counterweight couple the lid and counterweight to move together in counter-rotation relative to each other. The weight of the lid is largely balanced by the weight of the counterweight, thereby facilitating opening and closing of the pit lid.

REFERENCES:
patent: 3190039 (1965-06-01), Carlson
patent: 3541727 (1970-11-01), Carlson
patent: 4065020 (1977-12-01), Carlson

Affiliated with

Also associated with

Rating

Easy lift pit lid does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Easy lift pit lid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Easy lift pit lid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-873283