Patent · US Expired

Method for color-marking logs

US4169173A · kind A · utility

15Cited by
6References
1Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 5, 1976
Grant dateSep 25, 1979
Priority date
Expiry dateOct 5, 1996

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T83/54
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A method of color marking logs wherein the logs are cut to predetermined lengths in a processing machine and are colored coded with one or a combination of different colors after the cutting has taken place. The colors correspond to predetermined information related to the log such as its length and are applied to an end portion of the log during a free fall after cut-off by means of automatically controlled paint sprayers. A sprayer for color marking the log is preset prior to its actuation by a signal corresponding to the predetermined log length.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.