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:
Feb. 20, 1996
Filed:
May. 02, 1994
Ralph M Main, San Pedro, CA (US);
Sequa Corporation, Hackensack, NJ (US);
Abstract
A press for forming the relatively long cylindrical body of a so-called two piece beverage can utilizes a horizontally reciprocating ram to drive a relatively short cup through a circular die pack. Compressed air applied through a rotary valve is utilized to strip the bodies from the ram. Such valve includes a continuously rotating rotor that is mechanically connected to the drive for the ram such that for each rotor revolution the ram moves through a complete cycle consisting of a forward working stroke followed by a rearward return stroke. The rotor is constructed of two disks that abut face to face. A rotor drive shaft extends through the center of the rotor and the angular position of the disks relative to each other is adjustable to adjust the portion of each rotor revolution during which compressed air is applied for stripping. Each disk is provided with an arcuate aperture and the extent to which these apertures overlap determines how long compressed air is applied for stripping. The angular position of the rotor on the drive shaft determines when compressed air is applied for stripping.