Spheres obtained by vapor deposition for use in ball point pens

Details Spheres obtained by vapor deposition for use in ball point pens Spheres obtained by vapor deposition for use in ball point pens

1977-02-09

1979-04-24

Pellegrino, Stephen C.

Coating implements with material supply

Including ball, roller or endless-belt tool

Ball

291484B, 428403, B43K 710

Patent

active

041509056

ABSTRACT:
A sphere particularly suitable for ball point pens having a core capable of withstanding temperature in excess of 800.degree. C. and a chemically vapor deposited coating on the core, the combined diameter of core and coating ranging from approximately 0.5 to approximately 1 mm in diameter. For example, the core may consist of a metal such as tungsten, nickel, copper or molybdenum; or alternatively the core may consist of a ceramic such as aluminum oxide or graphite. The vapor deposited coating may consist of a metal carbide such as tungsten carbide, titanium carbide, tantalum carbide or niobium carbide. Alternatively the coating may consist of a metal boride such as titanium diboride.

REFERENCES:
patent: 3503692 (1970-03-01), Kubota et al.

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