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:
Mar. 14, 2000
Filed:
Sep. 04, 1998
Hardinge, Inc., Elmira, NY (US);
Abstract
A spindle for gripping and closing a mounting member which includes a housing having a spindle assembly mounted therein including a first rotary member capable of rotation about its longitudinal axis and a second rotary member disposed about the first rotary member in coaxial relation and being capable of rotation about the longitudinal axis. The first rotary member has a gripping portion for gripping the mounting member and the second rotary member has a thrust surface and a contacting portion for contacting the mounting member. A radial bearing in the housing supports the second rotary member, and a fluid thrust bearing supports the thrust surface of the second rotary member. One of the first and second rotary members is capable of axial movement relative to the other rotary member and has an engagement surface engageable for causing axial movement of the axially moveable rotary member. An actuating assembly is provided to selectively engage the engagement surface to move the axially movable rotary member relative to the other rotary member to draw the mounting member against the contacting surface for closure.