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:
Oct. 20, 1992
Filed:
Nov. 01, 1991
Gerard Dimur, Savigny sur Orge, FR;
Jean-Claude Haroutel, Orsay, FR;
Alcatel Satmam, Bagneux, FR;
Abstract
First and second drive rollers and a slideway feed in an envelope to be opened. A third drive roller drives the body of the envelope in a direction parallel to the fold connecting the flap to the body of the envelope, the drive roller rolling over the face opposite from the face against which the flap of the envelopes folded down, without rolling over the region close to the fold. A counter roller situated facing the drive roller, rolls over the face against which the flap is folded down, without rolling over the flap. An idler wheel situated facing the drive roller has a rim which rolls over the flap close to the fold connecting the flap to the body of the envelope, and which penetrates into the cylindrical volume defined by the straight generator lines of the third drive roller, so as to arch the body about an axis approximately parallel to the fold. A freely rotatable cone moves the flap and the body apart by being inserted into the space created by the arching. Guides remove an envelope while keeping it open.