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. 07, 1976
Filed:
Aug. 25, 1975
Applicant:
Inventor:
William F Rethwish, Bonita, CA (US);
Assignee:
Rohr Industries, Inc., Chula Vista, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C / ;
U.S. Cl.
CPC ...
90 1 / ; 3317 / ; 318468 ;
Abstract
An annular frame having a biased target plate thereon is mounted in a selected path of advance of each of the usual plurality of tools of a N.C. machine. Two micro-switches are mounted for operation in sequence upon selected movement of the target plate by each advancing tool. Actuation of the first of these micro-switches slows the advance of the tool, while actuation of the second arrests tool advance and notifies the computer of the N.C. machine that such tool is then in a selected, zero position, from which position all further computer controlled operations of the tool are programmed.