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:
May. 08, 1984
Filed:
Jul. 28, 1982
Applicant:
Inventors:
Jerry R Johanson, Chelmsford, MA (US);
Thomas A Royal, Arlington, MA (US);
Assignee:
Jenike & Johanson, Inc., No. Billerica, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73-7 ;
Abstract
Apparatus for testing abrasive wear on a surface of a sample. Flowable abrasive material is fed from a barrel against the surface. The sample is mounted reciprocally in the direction of feeding of the material, and urged by a force opposing that of the material thereon. The rate of feeding is controlled to maintain a gap between the end of the barrel and the sample so that the material flows continuously through the gap.