Patent · US Expired

Chuck assembly having a pull up feature

US5743538A · kind A · utility

3Cited by

7References

9Claims

0Family size

Assignee

Xerox Corporation · US

Inventors

Peter Schmitt · Erlangen, DE
Eugene A. Swain · Webster, US
Kamran U. Zaman · Pittsford, US
Alan D. Smith · Henrietta, US

Key dates

Filing date	Aug 5, 1996
Grant date	Apr 28, 1998
Priority date	—
Expiry date	Aug 5, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T279/1066
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

There is disclosed a chuck assembly defining a longitudinal axis for internally holding a hollow substrate having an open first end and a second end including: (a) an alignment shoulder positioned along the longitudinal axis; (b) an end portion, positioned along the longitudinal axis, that is adapted to be inserted into the substrate through the open first end and comprised of a polymeric member, wherein the polymeric member has a changeable width including a smaller width to permit insertion of the polymeric member into the substrate and a larger width to contact the polymeric member with the substrate inner surface, and the polymeric member is moveable along the longitudinal axis; and (c) a width changing apparatus operatively coupled to the polymeric member, wherein the polymeric member, which is in contact with the substrate inner surface, pulls the substrate a distance along the longitudinal axis towards the alignment shoulder when the polymeric member moves towards the alignment shoulder.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.