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:
Dec. 25, 1990
Filed:
Jan. 26, 1990
Applicant:
Inventor:
Nathaniel L Field, Northville, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B23B / ; B23B / ;
U.S. Cl.
CPC ...
409136 ; 279 / ; 269 481 ; 408 56 ; 408 59 ; 407 11 ; 409234 ;
Abstract
A fast tool change holder is provided for holding a tool adapter onto an internally delivered coolant spindle. The holder comprises an expandable split collet which can be inserted into the tool adapter and expanded in order to hold the adapter onto the spindle. The split collet has an expandable bladder therein which receives a coolant fluid from the spindle and expands under the pressure of the coolant fluid radially outwardly for expanding the split collet. The bladder enables the coolant fluid to assist mechanical and centrifugal forces associated with the split collet to hold the tool adapter onto the spindle.