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. 15, 1999
Filed:
Dec. 23, 1997
James R Sheren, Grand Ledge, MI (US);
Richard L Madden, Marshall, MI (US);
Eaton Corporation, Cleveland, OH (US);
Abstract
A chain tensioner (19) having a housing (23) and a plunger (29), in which the housing includes a mounting surface (39) to be in face-to-face relationship with a wall surface (35) of the engine block (E). The tensioner includes a retainer member (43;81) having a retaining portion (55;85) and a wall-engaging portion (41;87). Before assembly, the retaining portion (55;85) engages a shoulder (65) on the plunger (29) to keep it within its bore (25) When the housing (23) of the tensioner is bolted to the engine block (E), the wall-engaging portion (41;87) engages the wall surface (35), and tightening of the bolts gradually moves the retaining portion (55;85) to a position in which it no longer engages the plunger (29), thus permitting the plunger to move outward of its bore.