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:
Oct. 20, 2009
Filed:
Feb. 10, 2006
Paul David Harris, Lower Hutt, NZ;
Alex James Stevenson, Papamoa, NZ;
Paul Gamble, Taupo, NZ;
Russell John Petherick, Wainuiomata, NZ;
Eberhard Juergen Deuss, Pauatahanui, NZ;
Eugene Stytsenko, Lower Hutt, NZ;
Frederic Lecarpentier, Miramar, NZ;
Michael Kenneth Andrews, Pauatahanui, NZ;
Paul David Harris, Lower Hutt, NZ;
Alex James Stevenson, Papamoa, NZ;
Paul Gamble, Taupo, NZ;
Russell John Petherick, Wainuiomata, NZ;
Eberhard Juergen Deuss, Pauatahanui, NZ;
Eugene Stytsenko, Lower Hutt, NZ;
Frederic Lecarpentier, Miramar, NZ;
Michael Kenneth Andrews, Pauatahanui, NZ;
Waratah NZ Limited, Tokoroa, NZ;
Abstract
A method and apparatus for determining a characteristic, such as the stiffness, of a portion of a wood specimen characterised by the steps of a) producing an acoustic signal in the wood specimen part way along the length of the wood specimen, and b) sensing a response in the wood specimen part way along the length of the wood specimen including a reverberation from a first end of the wood specimen, and c) calculating a characteristic of a portion of the wood specimen from analysis of the sensed response. A related method and apparatus may be used to determine a characteristic of a portion of a tree stem during harvesting of a tree and the characteristic used to optimise the value of a log cut from the stem.