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:
Nov. 10, 1981
Filed:
Sep. 11, 1979
Sean J Cleary, Loughrea, IE;
Noel L Furlong, Galway, IE;
The Institute for Industrial Research and Standards, Dublin, IE;
Abstract
The invention provides a nut tapping machine of the type driven by a drive chuck assembly comprising two sets of shank-embracing driving chucks one of which is always in engagement with the tap shank to drive it and each set is releasable sequentially from engagement with the tap shank to allow the passage of a blank along the shank. The invention solves the problems of incorrect thread form associated with other known tapping machines by providing a blank chuck assembly including a set of inwardly movable jaws each having a first flat face for engagement with the exit surface of a blank to true the blank relative to the tap.