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:
Apr. 25, 1978
Filed:
Sep. 22, 1976
John H Kelly, Burlington, CA;
The Steel Company of Canada, Limited, Hamilton, CA;
Abstract
This invention provides a process and apparatus for determining the energy absorbed by a test-piece of material during its fracture. The test-piece is supported horizontally between two separated anvils, and a dropweight is released from a position above the test-piece so that the same can be struck and fractured. Means are provided for determining, by measuring a determining characteristic of the motion of the dropweight after the test-piece has been fractured, the theoretical height from which the dropweight would have had to be released in order to have that post-fracture motion if the test-piece had not been in the way. The difference between this calculated theoretical height and the actual height of release, multiplied by the weight of the dropweight, provides a measure of the energy absorbed by the test-piece during its fracture.