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:
Apr. 08, 1997
Filed:
Dec. 27, 1994
Robert E Manna, Newtown, CT (US);
Pitney Bowes Inc., Stamford, CT (US);
Abstract
The thermal ribbon cassette is attachable to a thermal printing apparatus, the cassette housing is formed by a forward section attached to a rear wall to define a chamber. A supply spool is rotatively mounted to the forward section and the rear wall in the chamber. The supply spool has an ink transfer ribbon continuously wrapped there around and a number of interrupters continuously formed around the edge of the spool. A drag spring is mounted to the rear wall and biased against the interrupters for providing a rotational drag force. The take-up spool is rotatively mounted to the forward section and the rear wall in the chamber, the ink transfer ribbon has one end fixably mounted to the take-up spool and a portion extending through slots in the housing such that a portion of the ink transfer ribbon extends externally to said chamber. A locking gear arrangement is provided for preventing rotation of the take-up spool except in a forward direction.