RECORDING PEN

• US 3,611,430 A
• Filed: 08/07/1969
• Issued: 10/05/1971
• Est. Priority Date: 08/08/1968
• Status: Expired due to Term

• Current Assignee: Basil Parminter Thornber-Rosevere, George Watchorn, James John Hurley
• Original Assignee: Basil Parminter Thornber-Rosevere, George Watchorn, James John Hurley
• Inventors: Watchorn, George, Hurley, James John, Thornber-Rosevere, Basil Parminter
• Primary Examiner(s): Hartary, Joseph W.
• Application Number:
  US04/848,288
• Time in Patent Office: 789 Days
• Field of Search: 346/140
• US Class Current: 346/140.1
• CPC Class Codes: G01D 15/16 Recording elements transferring recording material, e.g. ink, to the recording surface printing recording elements G01D15/20

Abstract

A fiber-tip pen for use in recording apparatus, having a vertical reservoir closed at its upper end, a fiber rod inclined upwardly from the lower end of the reservoir, and an air inlet aperture provided above and adjacent the fiber rod.

Claims

1. A pen for use with recording apparatus comprising a body member including a tubular element defining an elongated enclosed inner cavity adapted for mounting in a generally vertical position, the upper end of said tubular element being closed to form an ink-retaining reservoir, and a stylus-receiving section formed at the lower end of said tubular element and having an open-ended inner chamber which opens at an inner end into said enclosed inner cavity, said stylus-receiving section being inclined upwardly away from the lower end of said tubular element, an enclosed open-ended air channel for the admission of air to said tubular element having an inner end which opens into said enclosed inner cavity at a point above but adjacent to the inner end of said stylus-receiving section inner chamber, said air channel being inclined upwardly away from said tubular element, and an elongated stylus received in the inner chamber of said stylus-receiving section and extending outwardly therefrom;

away from said tubular element to a remote end positioned at a point above the point at which said air channel opens into said enclosed inner cavity, said stylus being formed from a fiber element adapted to conduct ink to the remote end thereof from said enclosed inner cavity, the remote end of said fiber element being shaped to a point.

2. A pen according to claim 1 wherein said air channel is formed in said stylus-receiving section above the open-ended inner chamber thereof, said air channel being formed to provide a restricted opening into the enclosed inner cavity of said tubular element.

3. A pen according to claim 2 wherein said air channel constitutes an enlargement of the stylus-receiving open-ended inner chamber in said stylus-receiving section, said air channel extending above said stylus.

4. The pen according to claim 2 wherein the lower end of the enclosed inner cavity in said tubular element is smaller in cross section in the area adjacent the inner ends of said air channel and stylus-receiving section and said stylus extends completely through said stylus-receiving section and into said enclosed inner cavity.

5. The pen according to claim 4 wherein pen-mounting means are formed on said tubular element, said mounting means including a longitudinally extending wedge-shaped channel formed in the outer surface of said tubular element.