Back to results
US 3,942,684 AGranted
Air accumulator and aerator for materials-handling
AssigneeMartin Engineering Company
InventorHarold M. Stetson
Life of this patent
Estimating the term…
Abstract
A system for transferring a charge of air under high pressure from an accumulator or reservoir to a container of dispensable or flowable material of granular or like nature to facilitate flow or discharge of the material, as in cases where the material tends to "bridge" or "hang up" and create blockages as at the outlet of the container.
Claims10
In combination:
- a compressed air accumulator including a tank-like structure having a wall provided with a circular opening and a flat face portion normal to the axis of the opening and surrounding the opening;
- an aerator including a hollow cylindrical body projecting from and normal to the face and coaxial with the opening and having one end proximate the opening and a second end remote from the opening, a mounting flange rigid with the one end and seating on the face portion with the opening and said one end in communication, closure means fixed to the other end of the body and having an inlet connectible to a source of air under pressure, said body having a lateral discharge port intermediate the ends of the body, and a piston valve slidably movable in the body between a first position adjacent to the closure means and uncovering both the opening and the discharge port and a second position closing both the discharge port and the opening, said piston valve having at one end a portion operative to close said opening in said second position;
- and means securing the flange to the accumulator face portion.
Dependencies are inferred from the claim text.