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:
Jun. 22, 1993
Filed:
Apr. 06, 1992
Jack T Anderson, Independence, OH (US);
N.P.K. Equipment Construction, Inc., Walton Hills, OH (US);
Abstract
A method of lubricating the roller bearings journaling the rotatable, vibration imparting, eccentric mass in the closed cavity of a vibratory compactor housing comprising the step of providing a layer of lubricating oil at the bottom of the housing cavity having its upper surface spaced below but relatively close to the nadir point of the circular path of travel of the maximum radially extending node portion of the eccentric mass about its eccentric axis of rotation whereby to prevent penetration of the node portion directly into the oil layer itself and instead permitting the impacting of the node portion only with the upstanding thin columns of oil which are continuously formed at the upper surface of the oil layer, during the vibration of the housing and oil layer, to thereby splatter the oil from the impacted oil columns upwardly within the housing and into the roller bearings.