The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 17, 1995
Filed:
Feb. 07, 1994
James W Crafton, Evergreen, CO (US);
Ronald J Stene, Littleton, CO (US);
Thomas Shilling, Englewood, CO (US);
William J Roper, Englewood, CO (US);
SOCO Technologies, Inc., Fort Worth, TX (US);
Abstract
An improved drive head for use in transporting materials has a frame for mounting near a tubing orifice, a drive wheel and second wheel rotatably mounted on the frame. Each of the wheels are adaptable to receive a fluid entraining conveyor. The drive head causes the conveyor to move through a predetermined conveyor path on which the conveyor winds about the drive wheel through at least a majority of its surface, and preferably 330.degree.. The radius of a down-conveyor conveyor track of the second wheel is preferably slightly greater than the radius of the drive wheel conveyor track. Preferably, tires are provided which are mounted on wheel hubs of the drive and second wheels, and these tires may be made of an elastomer having a higher coefficient of friction than the preferably plastic drive and second wheel hubs. The preferred embodiment includes a third wheel which is disposed on the conveyor path to be closer to the orifice than the second wheel.