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. 27, 1983
Filed:
Jun. 18, 1981
Frank E Keske, Chillicothe, IL (US);
Alexander Goloff, East Peoria, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
Prior art roller followers have generally been relatively expensive to produce and provisions have had to be made to deliver pressurized lubricant to bushings which have been used as bearings for the roller. Such roller followers have also been made with partially open apertures for bearings, thus eliminating the need for pressurized lubrication, but in such roller followers there is a tendency for the rollers to fall out of the open apertures. These probelms are solved herein by forming the body (16) and bearing surfaces (26,28) of a roller follower (10) in two parts, an inner structure (20) which supports the bearing surfaces (26,28) and an outer structure (18) which surrounds the inner structure (20) and fastens the entire assembly (10) together. Preferably, the inner structure (20) comprises a pair of half tubular shells (22,24) which fit together and include flanges (40,41) for keeping the roller (12) in contact with the bearing surfaces (26,28). The principal use of such a roller follower (10) is in engines wherein the roller (12 ) contacts a camshaft and an end (44) of the roller follower removed from the roller (12) motivates a push rod against the force of a spring, thus causing the rod to reciprocate.