Koh-I-Noor Rapidograph, Inc.

Francotyp-Postalia Ag & Co.

Koh-I-Noor Rapidgoraph, Inc.

Rolf Martens

Rolf Paschen

Gerold Anderka

Gerhard DeBlitz

Bernd Willimczik

Joachim Brandt

Jurgen Post

A configuration for ink supply and ink disposal through connecting lines for an ink printing head has a minimum number of disposable parts, a reliable system for detecting when ink runs out, an easily adaptable coding system for individual types of ink, prevents incorrect insertion and improves servicing properties and environmental friendliness. The configuration has a cassette with a housing and two identically constructed flat boxlike containers supported in the housing. One container is intended for ink supply and the other container is intended for ink disposal. A flexible film for covering the ink is secured in the middle of each container and its size is dimensioned in such a way that the entire container volume can be utilized for the ink. A well is molded into the bottom of the container and outside it two electrodes for detecting the ink running out are fitted into the bottom and spaced apart from one another. A rubber-elastic seal for receiving an ink connecting line is inserted into a front wall of the container. Coding bores are incorporated into the front wall of the housing. Some bores are blocked while the others are open and correspond with associated coding pins in a receptacle for the cassette in the printer.

Configuration for ink supply and ink disposal for an ink printing head

A device for covering an oblong housing opening (3), along which an element (5) extending with one portion of itself into the housing (1) is movable back and forth, which comprises a flexible band (4), which immovably is secured at each end of the housing opening (3). The band is guided via deflecting rollers (6, 7) and guide rollers (8, 9) secured on the element (5), so as to train about the proximate portion of the element (5), which extends within the housing (1). The deflecting rollers (6, 7) and the guide rollers (8, 9) enable a shifting of the element (5) in the longitudinal direction of the housing opening (3) and with respect to the band (4).

Device for covering an oblong opening in a housing

In a device for exchanging objects, in particular writing instruments, two substantially identically embodied holders (5, 5') which are open at one side are provided. These holders are movable relative to one another in a plane extending substantially at right angles to there longitudinal axes (12, 12'). The object to be exchanged is held in a receptacle (20), which in cross section has substantially the shape of a regular, convex n-gon having an uneven number of sides. At each corner of the receptacle (20), there is an element of ferromagnetic material (22, 23, 24), and there is a permanent magnet (6, 6') on the inner face, located opposite the open side, of the receiving area of each holder (5, 5'). The receptacle (20) is positionally fixed in a holder (for instance, 5') by means of the aligned position of an element (23) of ferromagnetic material and of a permanent magnet (6', for example). By means of an approach toward the other holder (5'), the receptacle (20) is rotated, so that the permanent magnet (6) of the other holder (5) enters into an aligned position with one element (24) of ferromagnetic material of the receptacle (20), while the magnetic effect between the receptacle (20) and the one holder (5') is broken (FIG. 8).

Device for exchanging objects in particular writing instruments

Process and apparatus for drawing with several tube pens which may, alternatively, be brought into contact with a drawing surface, to draw different line widths. The tube pens are connected to an ink supply delivery mechanism which ensures that the writing fluid pressure in each tube pen is kept at a given value. The ink supply delivery mechanism supplies writing fluid to that tube pen having the finest line width, and excess writing fluid flows successively therefrom through an overflow, and to successively lower overflows of the tube pens with the next largest line widths, finally reaching the tube pen with the broadest line width, and eventually, by way of a storage container, to the ink supply delivery mechanism.

Growing community of inventors

Hamburg, Germany

Rolf Martens