US3050768A - Felt pack construction of pens - Google Patents

Description

Aug. 28, 1962 s. N. ROSENTHAL FELT PACK CONSTRUCTION OF PENS Original Filed April 30. 1957 INVENTOR.

SIDNEY N. ROSEN BY 2 THAL Gm ATTORNEYS United States Patent Claims. (Cl. 15-563) This application, a division of copending application Serial No. 656,138 of April 30, 1957, now abandoned, relates to pens of the type disclosed in my United States Patent No. 2,713,176 of July 19, 1955, and particularly relates to an improved capillary and felt pack or ink carrier construction for the same.

For an understanding of such construction, reference should be had to the accompanying drawing.

In such drawing:

FIG. 1 shows in elevation a pen of the invention;

FIG. 2 is a vertical section view of the same;

FIG. 3 is a fragmentary enlarged section View;

FIGS. 4, 5 and 6 are cross-section views on lines 44, 55 and 6-6 of FIG. 2.

The pen hereof comprises a glass bottle 10 having a reduced neck 11 externally threaded at 12 to receive an internally threaded cap 14 having threads 16 and containing gaskets 18 and 20. These have central holes alined wtih a central hole of cap 14. In these alined holes is a nib holder 22 carried by cap 14 and secured in place and securing the gaskets in place by its inner flange 24 and its outer flange or crimp 26.

In nib holder 22 is a felt nib 28 which projects out of the nib holder 22 at both ends, with the lower end in contact with a felt pack or absorbent ink carrier 30 whose upper end 31 is laterally compressed in neck 11 to reduce the size of the capillaries in carrier 30 at portion 31.

A thin aluminum cover 32 seals nib holder 22 and a shrunken plastic shroud 34 seals cap 14 and bottle 10.

The sides of the felt pack 30 aretchanneled at 35 to provide air passages to the space 36 above the felt pack 31 and above the tightly compressed upper portion 31, squeezed laterally by the reduced neck 11 of the bottle.

Air passages from such space through the nib holder are provided by spaces 37 at the sides of the nib 28 which does not quite fill the nib holder transversely as shown in FIG. 4 where it is held in nib holder 22 by detents 38.

Now having described the pen hereof, reference should be had to the claims which follow:

1. A pen comprising a vapor confining open end reservoir having a reduced neck portion, an absorbent compressible ink saturated carrier therein, a cap secured to the open end of said reservoir and having a nib holder extending therefrom, an absorbent nib in said holder extending beyond the end thereof and in contact with said carrier, said carrier having a transverse dimension at its outer end greater than that at said neck and being arranged with said outer end compressibly engaged by and extending into said reduced neck portion to maintain said carrier in operative ink supplying position in the reservoir.

2. A pen comprising an ink reservoir having a body portion and an open neck portion of less diameter than the body portion, a cap for said neck portion having a nib holder extending therefrom, an ink-conducting nib mounted in said nib-holder having one end extending therefrom and its other end extending only into the neck portion of the reservoir, a compressible ink-absorbent capillary carrier within said reservoir and having a compressed portion extending into said neck portion and in forced contact with the inner surface thereof and with the adjacent end of said nib, whereby the capillary passages in the portion of the carrier within said neck portion are relatively restricted in relation to the capillary passages of that portion of the carrier within the body of the reservoir to control the capillary flow of ink to the nib.

3. The combination of elements recited in claim 2 and wherein air passages are provided in the ink-carrier to establish communication between the body of the reservoir, the neck of the reservoir and the nib-holder.

4. The combination of elements recited in claim 2 and wherein air passages are provided in the nib-holder to establish communication between the neck portion of the reservoir and the atmosphere.

5. The combination of elements recited in claim 2 and wherein air passages are provided in the nib holder to establish communication between the neck portion of the reservoir and the atmosphere, and wherein air passages are provided in the ink carrier to establish communication between the body of the reservoir, the neck of the reservoir and the nib holder.

References Cited in the file of this patent UNITED STATES PATENTS 211,104 Mulford Jan. 7, 1879 1,576,533 Mikeleitis Mar. 16, 1926 2,243,752 Dunaway May 27, 1941 2,416,596 Rosenthal Feb. 25, 1947 2,547,541 Rosenthal Apr. 3, 1951 2,713,176 Rosenthal July 19, 1955 2,732,824 Brown Jan. 31, 1956 Patented Aug. 28, 1952'

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