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:
Sep. 17, 1991
Filed:
Sep. 05, 1990
Frederick R Hughes, Kernersville, NC (US);
Carlton L Rintz, Lititz, PA (US);
Ronald G Sergeant, Lewisville, NC (US);
Karl E Zemlin, Greensboro, NC (US);
Burle Technologies, Inc., Wilmington, DE (US);
Abstract
A lubrication retainer and distribution system for a worm gear and the mating worm. Porous pads saturated with lubricating fluid are attached to both sides of the worm gear and located so that they spread slightly and wipe the high ridges of the worm. To equalize the fluid distribution between the pads, at least one through hole is formed in the worm gear between the pads, and the hole's size is selected so that capillary action transfers the fluid between the pads as required. Also, to retain the lubricating fluid on the worm, 'O' rings are fitted tightly upon the worm shaft just beyond the spiral thread of the worm to act as barriers to prevent fluid from escaping from the system along the worm shaft.