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:
Nov. 02, 1982
Filed:
Sep. 29, 1980
Darrell N Halgrimson, Edmonds, WA (US);
Donald H Hanson, Arlington, WA (US);
Richard T King, Mountlake Terrace, WA (US);
Black Clawson, Inc., Everett, WA (US);
Abstract
A pair of sonic transducers are mounted above a peeler block on a veneer lathe, adjacent opposite ends of the block. Bursts of sonic energy are directed downward to strike the surface of the block such that sonic energy is reflected from the block surface to the transducers. The distance from the transducers to the axis of rotation of the lathe spindle upon which the block is mounted is known and, as a consequence, the radius of the peeler block may be determined in response to the ultrasonically measured distance from the transducers to the block surface. A series of radius measurements may be made as the block is rotated on the lathe spindle. Additionally, measurements may be made when a log is first loaded onto the lathe, after the log is rounded up, and after peeling of the block is completed.