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:
Jul. 26, 1988
Filed:
Oct. 08, 1986
Applicant:
Inventor:
Donald P Chisholm, Jr, Merrimack, NH (US);
Assignee:
Specialty Equipment Corporation, Worchester, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B31B / ;
U.S. Cl.
CPC ...
493 55 ; 493181 ; 493182 ;
Abstract
A vari-gap drive system for controlling the speed of the drive system used in the fabrication of corrugated boxes which varies the drive rate for a folder vis-a-vis that of the printer/slotter to which it is attached to vary the box blank gap through the folder and thus permit a throughout two to three times faster than that attainable when the drive for the two units are driven at the same speed. The reliability and speed of the subject Vari-Gap Drive System is in part derived from a unique cage roll assembly.