The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1980
Filed:
Jun. 19, 1978
Carl W Maxey, Corvallis, OR (US);
Other;
Abstract
Plural scanners are employed for detecting the surface features of a wood cant preparatory to sawing the cant into one or more boards. A scanner includes a radiation detector disposed above the cant on the wane side thereof, and a radiation source below the cant whereby the edges of the cant may be detected. A further pair of radiation sources are also located above the cant on the wane side thereof in angular relation to the detector for producing radiation beams which intersect the detection path of the detector only at a surface level corresponding to a predetermined acceptable wood thickness, as distinguished from the forward and rearward wanes. The wanes are detected as the region between detector illumination by the source below the cant, and detector illumination from the pair of sources above the cant.