Company Filing History:
Years Active: 1986-1988
Title: Innovations by Andrew W. Porter
Introduction
Andrew W. Porter is an accomplished inventor based in Richmond, California. He has made significant contributions to the field of wood panel testing and grading, holding a total of 2 patents. His innovative approaches have enhanced the methods used to determine the mechanical properties of wood materials.
Latest Patents
One of his latest patents is the "Transverse vibration apparatus for grading wood panels." This invention provides an apparatus and method for establishing a measure of the modulus of elasticity of a wood panel. The apparatus comprises a support frame with a triangular array of panel support points. A load cell, in combination with one support point, is interconnected to a frequency counter. This assembly determines the weight and vibration frequency of a dropped panel. The invention involves supporting the panel at three triangularly arranged support points, raising the panel at the apex end, and dropping it to cause it to vibrate at its resonant frequency. This process allows for the computation of a measure of stiffness from the measurements made.
Another notable patent is the "Static bending apparatus for grading wood panels." This invention offers a non-destructive method and apparatus for testing a wood panel, such as plywood, to establish values used in calculating the modulus of elasticity (MOE) for the panel. The method involves supporting the bottom surface of the panel horizontally with two spaced parallel rollers while contacting the top surface with a pivotally mounted loading bar. This loading bar applies linear loading to the panel uniformly across its width, even if the panel is warped or bent. The two loads applied are measured, and with the incremental deflection established, a value closely approximating the MOE can be calculated.
Career Highlights
Andrew W. Porter is currently associated with Her Majesty the Queen in Right of the Province of Alberta. His work focuses on advancing the technology and methodologies related to wood panel testing. His contributions have been instrumental in improving the accuracy and efficiency of grading wood materials.
Collaborations
Andrew collaborates with various professionals in his field, including his coworker Lars Bach. Their combined expertise fosters innovation and enhances the development of new technologies in wood panel testing.
Conclusion
Andrew W. Porter is a notable inventor whose work has significantly impacted the field of wood panel grading. His innovative patents demonstrate his commitment to advancing technology in this area.