Safety matchbook and matches
OwnerCharles C. Cohninventor
Life of this patent
Estimating the term…
Abstract
A match which is difficult for young children to ignite utilizes a protective coating on the tip of a match head which prevents ignition of the sulfur and potassium chlorate-containing mixture when an attempt is made to strike the match in the usual manner with its stem substantially perpendicular to the friction surface of the matchbook. The protective coating requires a special manipulation of the match whereby its stem is disposed at an angle preferably less than about forty degrees with respect to the friction surface so that the unprotected side of the match head can rub against the friction and ignite the match.
Claims6
A match comprising a substantially straight elongated stem and a head located at one end thereof, said head comprising a bulbous mass of flammable material adapted to ignite when rubbed against a phosphorus-containing friction surface, and characterized by means providing a coating of material incapable of igniting when rubbed against a phosphorus-containing friction surface, said coating being located at the tip of said head, and preventing ignition of the match when rubbed against a phosphorus-containing friction surface with the stem substantially perpendicular to said surface.
A matchbook having a friction surface and containing a plurality of matches, each match comprising a substantially straight elongated stem and a head located at one end thereof, said head comprising a bulbous mass of flammable material adapted to ignite when rubbed against said friction surface, and characterized by means providing a coating of material incapable of igniting when rubbed against a said friction surface, said coating being located at the tip of said head, and preventing ignition of the match when rubbed against said friction surface with the stem substantially perpendicular to said surface.
A matchbook having a friction surface and containing a plurality of matches, each match comprising a substantially straight, elongated stem and a head located at one end thereof, said head comprising a bulbous mass of flammable material adapted to ignite when rubbed against said friction surface, and characterized by means providing a coating on said head, said coating covering at least the tip of said head and consisting of a material incapable of igniting when rubbed against said friction surface, said coating being of a thickness such that it is capable of being rubbed off to expose said flammable material of the head only by multiple attempts to strike said match against said friction surface.
Dependencies are inferred from the claim text.