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:
Nov. 13, 1979
Filed:
Mar. 27, 1978
Donald R MacLeod, Ottawa, WI (US);
Rexnord Inc., Milwaukee, WI (US);
Abstract
A series of conveyor idler roll shafts in end-to-end relation supported by bearings provides a pressurized chamber for the flow of grease or oil to the bearings from a reservoir, which is capable of pumping the lubricant into the axial bore of each shaft. Small, radially directed holes connect the shaft bores to the bearings by providing a restricted passage having across it a suitable pressure drop capable of allowing lubricant to flow in sufficient quantities to each bearing regardless of its distance from the reservoir pressure source. Adjacent shaft ends are connected with a resilient cylindrical tubular coupler to provide the requisite flow passage continuity. A labyrinth seal provides a continuous path for lubricant to flow through the bearings, the seal and ultimately to the exterior of the system, where its appearance is visible and indicative of adequate lubricant flow to each bearing along the shaft assembly.