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:
Dec. 09, 1986
Filed:
Mar. 23, 1981
Arthur Kittel, Wilhelmshaven, DE;
Heiner Gerken, Jever, DE;
Olympia Werke AG, Wilhelmshaven, DE;
Abstract
In a system including a cassette containing a print wheel arranged to cooperate with holding devices provided in an impact printer having a rotatable setting shaft to which the print wheel can be releasably fastened for rotation therewith, the cassette is formed to enclose the print wheel on all sides except the region where it is to be acted upon by a printing hammer. The printer can be provided with a detent mechanism cooperating with counterdetent elements in the cassette to hold the cassette in a fully inserted position in the printer. The cassette can additionally be provided with an outwardly curved collecting funnel positioned for catching dirt released in the region where the type faces of the printing wheel strike a printing medium. For use in printers in which the setting shaft is mounted on a pivotal carrier in order to pivot into a position which facilitates mounting of the print wheel, the print wheel can be provided with integral protrusions which constitute holding elements for mounting the print wheel directly in the cassette with only bearing play in the axial and radial directions, and the cassette can be provided with bearing surfaces which cooperate with cup-shaped surfaces provided in the printer to prevent rotation of the cassette relative to the printer when the print wheel is fastened to the setting shaft and the setting shaft carrier has been pivoted to bring that shaft into its printing position.