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.

Date of Patent:
Jan. 24, 2006

Filed:

Mar. 23, 2004
Applicants:

Paul W. Allart, Rochester, NY (US);

Sandro G. Belpanno, Rochester, NY (US);

Inventors:

Paul W. Allart, Rochester, NY (US);

Sandro G. Belpanno, Rochester, NY (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21H 3/04 (2006.01);
U.S. Cl.
CPC ...
Abstract

A thread rolling attachment () is adapted to be mounted on a machine tool and to be selectively moved in an axially direction relative to a workpiece (W) having a cylindrical surface upon which a thread is to be rolled. The improvement broadly includes a center plate () having three circularly-spaced detents (); a front plate () having a central portion () arranged in axially-spaced relation to the center plate and having three circularly-spaced lugs () extending toward the center plate such that their distal end faces are adapted to engage and bear against a center plate surface (); a recess () extending into each lug from such distal surface, each recess adapted to receive a respective one of the detents for angularly orienting the center and front plates relative to one another; three eccentric roll pins () having their opposite marginal end portions journalled on the center and front plates, and spaced equally from one another about an imaginary circle; a thread roll () rotatably mounted on each eccentric roll pin; and a plurality of fasteners () operatively arranged to selectively hold the center and front plates together; whereby, when the thread rolling attachment is assembled, the front plate will have improved rigidity and will be less susceptible to deformation.


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