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. 27, 1998
Filed:
Mar. 20, 1998
Kabushiki Kaisha Akashi, , JP;
Abstract
An impacting velocity v.sub.1 and a rebounding velocity v.sub.1 ' of the hammer at a second hammer velocity measurement point 12 a distance x.sub.1 apart from a first hammer velocity measurement point 11 in the system of movement of the hammer are measured and the hardness H of the specimen is calculated in accordance with Equation 1, ##EQU1## where x.sub.2 denotes the distance between the first hammer velocity measurement point 11 and the specimen 2 and .alpha. denotes the acceleration acting on said hammer. Thereby, a hardness test in a rebound type hardness tester can be performed without measuring the velocities of the hammer immediately before impacting against the specimen and immediately after the impaction.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile