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. 29, 1994
Filed:
Sep. 25, 1992
Applicant:
Inventors:
Ronald L Searcy, Londonderry, NH (US);
Calvin M Winey, Carlisle, MA (US);
Mark W Magee, Derry, NH (US);
Assignee:
Howtek, Inc., Hudson, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23P / ;
U.S. Cl.
CPC ...
2989522 ; 298953 ;
Abstract
A drum for a rotary scanner operable in both a transmissive and a reflective mode is manufactured to high concentricity yet relatively inexpensively by mounting an oversized (in thickness) drum blank of possibly varying diameter and thickness on a cylindrical mandrel and thereafter turning it on a lathe to the required external radius. End caps containing mounting means defining the effective scan axis are then secured to the drum for subsequent mounting in a rotary scanner.