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:
Apr. 04, 2006
Filed:
Jun. 23, 2004
Edwin R. Chadwick, Goshen, CT (US);
Mitchell Bussell, New Hartford, CT (US);
Robert A. Hoyt, Bristol, CT (US);
Russel H. Marvin, Goshen, CT (US);
Gary Peresada, Torrington, CT (US);
Edwin R. Chadwick, Goshen, CT (US);
Mitchell Bussell, New Hartford, CT (US);
Robert A. Hoyt, Bristol, CT (US);
Russel H. Marvin, Goshen, CT (US);
Gary Peresada, Torrington, CT (US);
Torrington Research Co., Torrington, CT (US);
Abstract
A zero clearance bearing assembly comprising a housing defining a generally cylindrical bearing chamber with a pair of ball bearing units disposed therein. One unit is adjacent an axial thrust reaction surface of frusto-conical configuration and a shoulder on an associated shaft urges the unit into engagement with the surface. The other unit is press fit on the shaft and also has a shaft shoulder urging it toward the thrust surface. An air impeller on the shaft urges the same toward the other bearing unit and the thrust unit reacts to both the impeller load and an axial preload spring engaging the other bearing unit. One or both of the bearing units is provided with an improved radial preload device comprising a spring and a pair of circumaxially spaced reaction surfaces opposing the same.