Line marking apparatus
OwnerWarren J. Jasper, David C. Falkinventors
Life of this patent
Estimating the term…
Abstract
A method and apparatus for applying dye marks to a line at predetermined fixed increments. An unmarked line is wound around a roller tube which has a slot formed therein communicating with the interior of the roller tube. A vaporized dye is supplied to the interior of the roller tube and exists through the slot and the roller tube. The disperse dye contacts and penetrates the portion of the line overlying the slot to produce a dye mark on the line at predetermined increments equal to the circumference of the roller tube.
Claims22
A method for marking an advancing line at predetermined increments comprising:
- (a) providing a roller tube having an outer surface with an elongated slot formed therein communicating wit the interior of the roller tube, wherein the elongated slot extends generally axially between a supply end and a take-up end of the roller tube;
- (b) winding the advancing line around the roller tube such that the unmarked line crosses the elongated slot at predetermined increments,
- (c) supplying a disperse dye in a fluid state to the interior of the roller tube;
- and
- (d) forcing the disperse dye to exit the elongated slot in the roller tube and contact the line overlying the elongated slot to mark the line at predetermined increments as the line is being advanced.
An apparatus for marking an advancing line at predetermined increments comprising:
- a) a roller tube having an outer surface and an interior chamber;
- b) an elongated slot formed in the outer surface of the roller tube which communicates with the interior chamber of the roller tube and which extends axially between a supply end and a take-up end of the roller tube;
- c) a drive for rotating the roller tube to wind the advancing line around the roller tube such that the line crosses the elongated slot at a predetermined increment between the supply end and the take-up end of the roller tube;
- and
- d) a dye source for supplying dye in a fluid state to the interior chamber of the roller tube, wherein the dye exits the elongated slot to mark the line at said predetermined increments as the line advances from the supply end to the take-up end of the roller tube.
Dependencies are inferred from the claim text.