1. Field of the Invention
The present invention relates to storage containers, and particularly, but not by way of limitation, to reusable containers for liquid additives for use in the oil well service industry.
2. Description of the Prior Art
Many activities conducted in the oil well servicing industry require the use of liquid materials which are typically provided in 55-gallon drums. There is a substantial cost involved in the handling and disposal of such drums which typically are not reused.
The prior art does include a number of liquid container systems designed for reuse.
The full-size liquid additive tank 26 disclosed herein is itself a part of the prior art in that it has been on sale by the assignee of the present invention for greater than one year prior to the filing of this application.
A couple of other manufacturers have developed somewhat similar tanks such as those marketed by Hoover Universal, Inc., under the trademark AGRI-TOTE and such as the containers marketed under the trademark "TransStore" by Custom Metalcraft.