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:
May. 14, 1996
Filed:
Jul. 28, 1995
Applicant:
Inventors:
Dennis J Barnes, Charlotte, NC (US);
Douglas K Leirmoe, Weddington, NC (US);
Kenneth J Piecuch, Lake Wylie, SC (US);
Assignee:
The Rexroth Corporation, Bethlehem, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C / ; B65G / ;
U.S. Cl.
CPC ...
384 49 ; 193 / ;
Abstract
A ball transfer unit for use in a conveyor track for material handling applications, such as the movement and handling of freight, comprising a housing which contains a conveyor ball supported by the surface of a plurality of ball bearings. The ball transfer unit also comprises a floating annular seal such that the seal is continuously biased against the conveyor ball to prevent the introduction of fluids, contaminants, and harmful chemicals into the race of the ball transfer unit.